Toshiba Air Conditioner RAV SP1404AT E User Manual

FILE NO. A07-003

SERVICE MANUAL

AIR-CONDITIONER

SPLIT TYPE

INDOOR UNIT

RAV-SM564UT-E

RAV-SM804UT-E

RAV-SM1104UT-E RAV-SM1404UT-E

OUTDOOR UNIT

RAV-SP1104AT-E

RAV-SP1404AT-E

RAV-SP1104ATZ-E RAV-SP1404ATZ-E

RAV-SP1104ATZG-E RAV-SP1404ATZG-E

R410A

PRINTED IN JAPAN, Dec., 2007 ToMo

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6. REFRIGERANT R410A ........................................................................... 33

6-1. Safety During Installation/Servicing ............................................................... 33

6-2. Refrigerant Piping Installation....................................................................... 33

6-3. Tools .................................................................................................................. 37

6-4. Recharging of Refrigerant................................................................................ 37

6-5. Brazing of Pipes................................................................................................ 38

6-6. Instructions for Re-use Piping of R22 or R407C ............................................ 40

7. INDOOR CONTROL CIRCUIT ................................................................. 43

7-1. Indoor Controller Block Diagram..................................................................... 43

7-2. Control Specifications...................................................................................... 46

7-3. Optional Connector Specifications of Indoor P.C. Board .............................. 58

7-4. Indoor Print Circuit Board ................................................................................ 59

8. CIRCUIT CONFIGURATION AND CONTROL SPECIFICATIONS........... 60

8-1. Outdoor Controls .............................................................................................. 60

8-2. Outline of Main Controls .................................................................................. 61

9. TROUBLESHOOTING.............................................................................. 66

9-1. Summary ofTroubleshooting........................................................................... 66

9-2. Troubleshooting ................................................................................................ 68

10. REPLACEMENT OF SERVICE P.C. BOARD ........................................... 99

10-1. Indoort Unit ....................................................................................................... 99

10-2. Outdoor Unit.................................................................................................... 104

11. SETUP AT LOCAL SITE AND OTHERS ................................................ 105

11-1. Indoor Unit....................................................................................................... 105

11-2. Setup at Local Site / Others ........................................................................... 116

11-3. How to Set up Central Control Address Number ......................................... 118

11-4. Outdoor Unit.................................................................................................... 122

12. ADDRESS SETUP.................................................................................. 129

12-1. Address Setup ................................................................................................ 129

12-2. Address Setup & Group Control.................................................................... 130

12-3. Address Setup ................................................................................................ 132

13. DETACHMENTS ..................................................................................... 135

13-1. Indoor Unit...................................................................................................... 135

13-2. Outdoor Unit.................................................................................................... 145

14. EXPLODED VIEWS AND PARTS LIST .................................................. 153

14-1. Indoor Unit....................................................................................................... 153

14-2. Outdoor Unit.................................................................................................... 158

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SAFETY CAUTION

The important contents concerned to the safety are described on the product itself and on this Service Manual.

Please read this Service Manual after understanding the described items thoroughly in the following contents

(Indications/Illustrated marks), and keep them.

[Explanation of indications]

Indication

Explanation

Indicates contents assumed that an imminent danger causing a death or serious injury of

the repair engineers and the third parties when an incorrect work has been executed.

DANGER

Indicates possibilities assumed that a danger causing a death or serious injury of the

repair engineers, the third parties, and the users due to troubles of the product after work

when an incorrect work has been executed.

WARNING

CAUTION

Indicates contents assumed that an injury or property damage (∗) may be caused on the

repair engineers, the third parties, and the users due to troubles of the product after work

when an incorrect work has been executed.

∗ Property damage : Enlarged damage concerned to property, furniture, and domestic animal/pet

[Explanation of illustrated marks]

Mark

Explanation

Indicates prohibited items (Forbidden items to do)

The sentences near an illustrated mark describe the concrete prohibited contents.

Indicates mandatory items (Compulsory items to do)

The sentences near an illustrated mark describe the concrete mandatory contents.

Indicates cautions (Including danger/warning)

The sentences or illustration near or in an illustrated mark describe the concrete cautious contents.

[Confirmation of warning label on the main unit]

Confirm that labels are indicated on the specified positions

(Refer to the Parts disassembly diagram (Outdoor unit).)

If removing the label during parts replace, stick it as the original.

DANGER

Turn “OFF” the breaker before removing the front panel and cabinet, otherwise an electric

shock is caused by high voltage resulted in a death or injury.

During operation, a high voltage with 400V or higher of circuit (∗) at secondary circuit of the

high-voltage transformer is applied.

If touching a high voltage with the naked hands or body, an electric shock is caused even if using an

electric insulator.

Turn off breaker.

∗ : For details, refer to the electric wiring diagram.

When removing the front panel or cabinet, execute short-circuit and discharge between high-

voltage capacitor terminals.

If discharge is not executed, an electric shock is caused by high voltage resulted in a death or injury.

After turning off the breaker, high voltage also keeps to apply to the high-voltage capacitor.

Execute discharge

between terminals.

Do not turn on the breaker under condition that the front panel and cabinet are removed.

An electric shock is caused by high voltage resulted in a death or injury.

Prohibition

– 4 –

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WARNING

Before troubleshooting or repair work, check the earth wire is connected to the earth

terminals of the main unit, otherwise an electric shock is caused when a leak occurs.

If the earth wire is not correctly connected, contact an electric engineer for rework.

Check earth wires.

Do not modify the products.

Do not also disassemble or modify the parts. It may cause a fire, electric shock or injury.

Prohibition of modification.

For spare parts, use those specified (∗).

If unspecified parts are used, a fire or electric shock may be caused.

∗: For details, refer to the parts list.

Use specified parts.

Before troubleshooting or repair work, do not bring a third party (a child, etc.) except

the repair engineers close to the equipment.

It causes an injury with tools or disassembled parts.

Please inform the users so that the third party (a child, etc.) does not approach the equipment.

Do not bring a child

close to the equipment.

Connect the cut-off lead wires with crimp contact, etc, put the closed end side upward

and then apply a water-cut method, otherwise a leak or production of fire is caused at

the users’ side.

Insulating measures

When repairing the refrigerating cycle, take the following measures.

1) Be attentive to fire around the cycle. When using a gas stove, etc, be sure to put out fire

before work; otherwise the oil mixed with refrigerant gas may catch fire.

2) Do not use a welder in the closed room.

When using it without ventilation, carbon monoxide poisoning may be caused.

No fire

3) Do not bring inflammables close to the refrigerant cycle, otherwise fire of the welder may

catch the inflammables.

Check the used refrigerant name and use tools and materials of the parts which

match with it.

For the products which use R410A refrigerant, the refrigerant name is indicated at a

position on the outdoor unit where is easy to see. To prevent miss-charging, the route of the

service port is changed from one of the former R22.

For an air conditioner which uses R410A, never use other refrigerant than R410A.

For an air conditioner which uses other refrigerant (R22, etc.), never use R410A.

If different types of refrigerant are mixed, abnormal high pressure generates in the

refrigerating cycle and an injury due to breakage may be caused.

Do not charge refrigerant additionally.

If charging refrigerant additionally when refrigerant gas leaks, the refrigerant composition in

the refrigerating cycle changes resulted in change of air conditioner characteristics or

refrigerant over the specified standard amount is charged and an abnormal high pressure is

applied to the inside of the refrigerating cycle resulted in cause of breakage or injury.

Therefore if the refrigerant gas leaks, recover the refrigerant in the air conditioner, execute

vacuuming, and then newly recharge the specified amount of liquid refrigerant.

In this time, never charge the refrigerant over the specified amount.

Refrigerant

When recharging the refrigerant in the refrigerating cycle, do not mix the refrigerant

or air other than R410A into the specified refrigerant.

If air or others is mixed with the refrigerant, abnormal high pressure generates in the

refrigerating cycle resulted in cause of injury due to breakage.

After installation work, check the refrigerant gas does not leak.

If the refrigerant gas leaks in the room, poisonous gas generates when gas touches to fire

such as fan heater, stove or cocking stove though the refrigerant gas itself is innocuous.

Never recover the refrigerant into the outdoor unit.

When the equipment is moved or repaired, be sure to recover the refrigerant with recovering

device. The refrigerant cannot be recovered in the outdoor unit; otherwise a serious accident

such as breakage or injury is caused.

After repair work, surely assemble the disassembled parts, and connect and lead the

removed wires as before. Perform the work so that the cabinet or panel does not

catch the inner wires.

If incorrect assembly or incorrect wire connection was done, a disaster such as a leak or fire

is caused at user’s side.

Assembly/Cabling

– 5 –

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WARNING

After the work has finished, be sure to use an insulation tester set (500V Megger) to

check the resistance is 2MΩ or more between the charge section and the non-charge

metal section (Earth position).

If the resistance value is low, a disaster such as a leak or electric shock is caused at user’s

side.

Insulator check

Ventilation

When the refrigerant gas leaks during work, execute ventilation.

If the refrigerant gas touches to a fire, poisonous gas generates.

A case of leakage of the refrigerant and the closed room full with gas is dangerous because

a shortage of oxygen occurs. Be sure to execute ventilation.

When checking the circuit inevitably under condition of the power-ON, use rubber

gloves and others not to touch to the charging section.

If touching to the charging section, an electric shock may be caused.

Be attentive to

electric shock

When the refrigerant gas leaks, find up the leaked position and repair it surely.

If the leaked position cannot be found up and the repair work is interrupted, pump-down

and tighten the service valve, otherwise the refrigerant gas may leak into the room.

The poisonous gas generates when gas touches to fire such as fan heater, stove or cocking

stove though the refrigerant gas itself is innocuous.

When installing equipment which includes a large amount of charged refrigerant such

as a multi air conditioner in a sub-room, it is necessary that the density does not the

limit even if the refrigerant leaks.

Compulsion

If the refrigerant leaks and exceeds the limit density, an accident of shortage of oxygen is

caused.

For the installation/moving/reinstallation work, follow to the Installation Manual.

If an incorrect installation is done, a trouble of the refrigerating cycle, water leak, electric

shock or fire is caused.

After repair work has finished, check there is no trouble.

If check is not executed, a fire, electric shock or injury may be caused.

For a check, turn off the power breaker.

After repair work (installation of front panel and cabinet) has finished, execute a test

run to check there is no generation of smoke or abnormal sound.

Check after rerair

If check is not executed, a fire or an electric shock is caused.

Before test run, install the front panel and cabinet.

Check the following items after reinstallation.

1) The earth wire is correctly connected.

2) The power cord is not caught in the product.

3) There is no inclination or unsteadiness and the installation is stable.

If check is not executed, a fire, an electric shock or an injury is caused.

Check after reinstallation

CAUTION

Be sure to put on gloves (∗) during repair work.

If not putting on gloves, an injury may be caused with the parts, etc.

(∗) Heavy gloves such as work gloves

Put on gloves

Cooling check

When the power was turned on, start to work after the equipment has been

sufficiently cooled.

As temperature of the compressor pipes and others became high due to cooling/heating

operation, a burn may be caused.

– 6 –

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• New Refrigerant (R410A)

This air conditioner adopts a new HFC type refrigerant (R410A) which does not deplete the ozone layer.

1. Safety Caution Concerned to New Refrigerant

The pressure of R410A is high 1.6 times of that of the former refrigerant (R22).

Accompanied with change of refrigerant, the refrigerating oil has been also changed.

Therefore, be sure that water, dust, the former refrigerant or the former refrigerating oil is not mixed into the

refrigerating cycle of the air conditioner with new refrigerant during installation work or service work.

If an incorrect work or incorrect service is performed, there is a possibility to cause a serious accident.

Use the tools and materials exclusive to R410A to purpose a safe work.

2. Cautions on Installation/Service

1) Do not mix the other refrigerant or refrigerating oil.

For the tools exclusive to R410A, shapes of all the joints including the service port differ from those of

the former refrigerant in order to prevent mixture of them.

2) As the use pressure of the new refrigerant is high, use material thickness of the pipe and tools which are

specified for R410A.

3) In the installation time, use clean pipe materials and work with great attention so that water and others do

not mix in because pipes are affected by impurities such as water, oxide scales, oil, etc.

Use the clean pipes.

Be sure to brazing with flowing nitrogen gas. (Never use gas other than nitrogen gas.)

4) For the earth protection, use a vacuum pump for air purge.

5) R410A refrigerant is azeotropic mixture type refrigerant.

Therefore use liquid type to charge the refrigerant. (If using gas for charging, composition of the

refrigerant changes and then characteristics of the air conditioner change.)

3. Pipe Materials

For the refrigerant pipes, copper pipe and joints are mainly used.

It is necessary to select the most appropriate pipes to conform to the standard.

Use clean material in which impurities adhere inside of pipe or joint to a minimum.

1) Copper pipe

The pipe thickness, flare finishing size, flare nut and others differ according to a refrigerant type.

When us#ing a long copper pipe for R410A, it is recommended to select “Copper or copper-base pipe

without seam” and one with bonded oil amount 40mg/10m or less.

Also do not use crushed, deformed, discolored (especially inside) pipes.

(Impurities cause clogging of expansion valves and capillary tubes.)

Use the flare nuts which are attached to the air conditioner unit.

2) Joint

The flare joint and socket joint are used for joints of the copper pipe.

The joints are rarely used for installation of the air conditioner. However clear impurities when using them.

– 7 –

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4. Tools

1. Required Tools for R410A

Mixing of different types of oil may cause a trouble such as generation of sludge, clogging of capillary,

etc. Accordingly, the tools to be used are classified into the following three types.

1) Tools exclusive for R410A (Those which cannot be used for conventional refrigerant (R22))

2) Tools exclusive for R410A, but can be also used for conventional refrigerant (R22)

3) Tools commonly used for R410A and for conventional refrigerant (R22)

The table below shows the tools exclusive for R410A and their interchangeability.

Tools exclusive for R410A (The following tools for R410A are required.)

Tools whose specifications are changed for R410A and their interchangeability

R410A

air conditioner installation

Conventional air

conditioner installation

No.

Used tool

Usage

Existence of

new equipment tional equipment

for R410A

Whether conven-

Whether conventional

equipment can be used

can be used

Flare tool

Pipe flaring

Flaring by conventional

Yes

*(Note)

Yes

*(Note)

‚

Copper pipe gauge for

adjusting projection margin flare tool

Yes

*(Note)

Torque wrench

Connection of flare nut

„

ꢀ

†

Gauge manifold

Charge hose

Evacuating, refrigerant

charge, run check, etc.

Yes

Vacuum pump adapter

Vacuum evacuating

Refrigerant charge

Yes

Electronic balance for

refrigerant charging

Yes

‡

Refrigerant cylinder

Leakage detector

Charging cylinder

Refrigerant charge

Gas leakage check

Refrigerant charge

Yes

‰

(Note) When flaring is carried out for R410A using the conventional flare tools, adjustment of projec-

tion margin is necessary. For this adjustment, a copper pipe gauge, etc. are necessary.

General tools (Conventional tools can be used.)

In addition to the above exclusive tools, the following equipments which serve also for R22 are necessary

as the general tools.

1) Vacuum pump

7) Screwdriver (+, –)

8) Spanner or Monkey wrench

9) Hole core drill

Use vacuum pump by

attaching vacuum pump adapter.

2) Torque wrench

3) Pipe cutter

4) Reamer

10) Hexagon wrench (Opposite side 4mm)

11) Tape measure

12) Metal saw

5) Pipe bender

6) Level vial

Also prepare the following equipments for other installation method and run check.

1) Clamp meter

2) Thermometer

3) IInsulation resistance tester (Megger)

4) Electroscope

– 8 –

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1. SPECIFICATIONS

1-1. Indoor Unit

1-1-1. 4-Way Air Discharge CassetteType

Indoor unit

RAV-SM

564UT-E

804UT-E

1104UT-E

1404UT-E

Model

Outdoor unit

RAV-SP 562AT(Z)(ZG)-E 802AT(Z)(ZG)-E 1104AT(Z)(ZG)-E 1404AT(Z)(ZG)-E

Cooling capacity

Heating capacity

Power supply

(kW)

5.3

5.6

7.1

8.0

10.0

11.2

12.5

14.0

1 phase 230V (220 – 240V) 50Hz

Running current (A)

Power consumption(kW)

7.17 – 6.57

8.95 – 8.21

10.36 – 9.49

14.66 – 13.44

1.53

1.93

2.21

3.16

Power factor

EER

(%)

3.46

3.68

Cooling

4.52

3.96

Energy efficiency class ∗

Energy rating ∗∗

—

Electrical

characteristics

Running current (A)

Power consumption(kW)

5.62 – 5.15

1.20

9.42 – 8.63

2.03

10.96 – 10.05

14.89 – 13.65

2.34

3.21

Power factor

COP

(%)

Heating

4.67

3.94

4.79

4.36

Energy efficiency class ∗

Energy rating ∗∗

—

Maximum current

Main unit

15.33

20.50

Zinc hot dipping steel plate

Appearance

Model

RBC-U31PG (W)-E, RBC-U31PG (WS)-E

Ceiling panel

(Sold separately)

Panel color

W: Moon-white (2.5GY 9.0/0.5), WS: Stripe-white (2.5GY 9.0/0.5, (Gray: 8B 3/0.3))

Height

Width

Depth

Height

Width

Depth

(mm)

(kg)

256

840

256

840

319

840

319

840

Main unit

Outer

dimension

Ceiling panel

(Sold separately)

950

Main unit

Total weight

Ceiling panel (Sold separately)

(kg)

4.2

Heat exchanger

Finned tube

Fan

Turbo fan

17.5/14.5/13.0

Turbo fan

20.5/16.0/13.5

Turbo fan

33.5/24.0/19.5

Turbo fan

35.0/24.0/20.5

Fan unit

Standard air flow H/M/L

Motor

(m³/min.)

(W)

Air filter

Standard filter attached (Long life filter)

RBC-AMT32E, AS21E2, AX31U (W)-E

Controller (Sold separately)

Sound pressure level

Sound power level

H/M/L

(dB•A)

(mm)

32 / 29 / 28

47 / 44 / 43

12.7

35 / 31 / 28

50 / 46 / 43

15.9

43 / 38 / 33

58 / 53 / 48

15.9

44 / 38 / 34

59 / 53 / 49

15.9

H/M/L

Gas side

Liquid side

Drain port

Connecting pipe

6.4

9.5

VP25

∗ : IEC standard, ∗∗ : AS standard

– 9 –

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Indoor unit

RAV-

(kW)

SM564UT-E

SM563AT-E

5.3

SM804UT-E

SM803AT-E

6.7

SM1104UT-E

SM1103AT-E

10.0

SM1404UT-E

SM1403AT-E

12.0

Model

Outdoor unit

Cooling capacity

Heating capacity

Power supply

5.6

8.0

11.2

14.0

1 phase 230V (220 – 240V) 50Hz

Running current (A)

Power consumption(kW)

7.89 – 7.24

9.97 – 9.12

14.61 – 13.40

17.62 – 16.14

1.65

2.09

3.11

3.74

Power factor

EER

(%)

3.21

Cooling

3.21

3.22

3.21

Energy efficiency class ∗

Energy rating ∗∗

—

Electrical

characteristics

Running current (A)

Power consumption(kW)

6.89 – 6.32

1.44

10.83 – 9.90

13.38 – 12.38

17.88 – 15.87

2.21

2.93

3.80

Power factor

COP

(%)

Heating

3.89

3.62

3.82

3.68

Energy efficiency class ∗

Energy rating ∗∗

—

Maximum current

Main unit

15.33

20.50

Zinc hot dipping steel plate

Appearance

Model

RBC-U31PG (W)-E, RBC-U31PG (WS)-E

Ceiling panel

(Sold separately)

Panel color

W: Moon-white (2.5GY 9.0/0.5), WS: Stripe-white (2.5GY 9.0/0.5, (Gray: 8B 3/0.3))

Height

Width

Depth

Height

Width

Depth

(mm)

(kg)

256

840

256

840

319

840

319

840

Main unit

Outer

dimension

Ceiling panel

(Sold separately)

950

Main unit

Total weight

Ceiling panel (Sold separately)

(kg)

4.2

Heat exchanger

Finned tube

Fan

Turbo fan

17.5/14.5/13.0

Turbo fan

20.5/16.0/13.5

Turbo fan

33.5/24.0/19.5

Turbo fan

35.0/24.0/20.5

Fan unit

Air filter

Standard air flow H/M/L

Motor

(m³/min.)

(W)

Standard filter attached (Long life filter)

RBC-AMT32E, AS21E2, AX31U (W)-E

Controller (Sold separately)

Sound pressure level

Sound power level

H/M/L

(dB•A)

(mm)

32 / 29 / 28

47 / 44 / 43

12.7

35 / 31 / 28

50 / 46 / 43

15.9

43 / 38 / 33

58 / 53 / 48

15.9

44 / 38 / 34

59 / 53 / 49

15.9

H/M/L

Gas side

Liquid side

Drain port

Connecting pipe

6.4

9.5

VP25

∗ : IEC standard, ∗∗ : AS standard

– 10 –

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Indoor unit 1

Indoor unit 2

Outdoor unit

RAV-

SM564UT-E

SP1104AT(Z)(ZG)-E

10.0

SM804UT-E

SP1404AT(Z)(ZG)-E

12.5

Model

RAV-

Cooling capacity

Heating capacity

(kW)

11.2

14.0

Indoor unit

Power supply

1 phase 230V (220 – 240V) 50Hz

Running current

Power consumption

Power factor

(A)

(kW)

(%)

10.36 – 9.49

14.66 – 13.44

2.21

3.16

Cooling

EER

4.52

3.96

Energy efficiency class ∗

Running current

Power consumption

Power factor

10.96 – 10.05

2.34

14.89 – 13.65

3.21

Electrical

characteristics

(A)

(kW)

(%)

Heating

Fan

COP

4.79

4.36

Energy efficiency class ∗

Turbo fan

17.5 / 14.5 / 13.0

Turbo fan

20.5 / 16.0 / 13.5

Fan unit

Standard air flow H/M/L

Motor

(m³/min.)

(W)

Sound pressure level

Sound power level

H/M/L

(dB•A)

32 / 29 / 28

47 / 44 / 43

35 / 31 / 28

50 / 46 / 43

(dB•A)

Outdoor unit

Power supply

1 phase 230V (220 – 240V) 50Hz

Standard length

(m)

7.5

Min. length

Max. total length

Over 30m

Outer

dimension

40g/m (31m to 50m)

Outdoor lower

Outdoor higher

(m)

Height

difference

Fan

Propeller fan

101

Propeller fan

103

Fan unit

Standard air flow volume

Motor

(m³/min.)

(W)

100 + 100

15.9

100 + 100

15.9

Main

(mm)

Gas side

Sub

(mm)

12.7

15.9

Connecting

pipe

Main

Liquid side

(mm)

9.5

Sub

(mm)

6.4

9.5

Sound pressure level

Sound power level

Cooling/Heating

(dB•A)

49 / 50

66 / 67

51 / 52

68 / 69

∗ : IEC standard

– 11 –

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Indoor unit 1

Indoor unit 2

Outdoor unit

RAV-

SM564UT-E

SM1103AT-E

10.0

SM804UT-E

SM1403AT-E

12.5

Model

RAV-

Cooling capacity

Heating capacity

(kW)

11.2

14.0

Indoor unit

Power supply

1 phase 230V (220 – 240V) 50Hz

Running current

Power consumption

Power factor

(A)

(kW)

(%)

14.40 – 13.20

20.57 – 18.97

3.11

4.09

Cooling

EER

3.22

3.06

Energy efficiency class ∗

Running current

Power consumption

Power factor

14.40 – 13.20

2.93

17.74– 16.08

4.00

Electrical

characteristics

(A)

(kW)

(%)

Heating

Fan

COP

3.82

3.50

Energy efficiency class ∗

Turbo fan

17.5 / 14.5 / 13.0

Turbo fan

20.5 / 16.0 / 13.5

Fan unit

Standard air flow H/M/L

Motor

(m³/min.)

(W)

Sound pressure level

Sound power level

H/M/L

(dB•A)

32 / 29 / 28

47 / 44 / 43

35 / 31 / 28

50 / 46 / 43

(dB•A)

Outdoor unit

Power supply

1 phase 230V (220 – 240V) 50Hz

Standard length

(m)

7.5

Min. length

Max. total length

Over 30m

Outer

dimension

40g/m (31m to 50m)

Outdoor lower

Outdoor higher

(m)

Height

difference

Fan

Propeller fan

Fan unit

Standard air flow volume

Motor

(m³/min.)

(W)

100

Main

(mm)

15.9

Gas side

Sub

(mm)

12.7

15.9

Connecting

pipe

Main

Liquid side

(mm)

9.5

Sub

(mm)

6.4

9.5

Sound pressure level

Sound power level

Cooling/Heating

(dB•A)

53 / 54

70 / 71

54 / 54

71 / 71

∗ : IEC standard

– 12 –

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1-1-2. Concealed DuctType

Indoor unit

Model

RAV-SM

562BT-E

802BT-E

1102BT-E

1402BT-E

Outdoor unit

RAV-SP 562AT(Z)(ZG)-E 802AT(Z)(ZG)-E 1104AT(Z)(ZG)-E 1404AT(Z)(ZG)-E

Cooling capacity

Heating capacity

Power supply

(kW)

5.0

5.6

7.1

8.0

10.0

11.2

12.5

14.0

1 phase 230V (220 – 240V) 50Hz

Running current (A)

Power consumption(kW)

6.51 – 5.97

9.74 – 8.93

13.78 – 12.63

17.76 – 16.28

1.39

2.10

2.94

3.83

Power factor

EER

(%)

3.60

3.38

Cooling

3.40

3.26

Energy efficiency class ∗

Energy rating ∗∗

—

Electrical

characteristics

Running current (A)

Power consumption(kW)

7.26 – 6.66

1.55

9.74 – 8.93

2.41

12.98 – 11.90

15.82 – 14.50

2.77

3.41

Power factor

COP

(%)

Heating

3.61

3.32

4.04

4.11

Energy efficiency class ∗

Energy rating ∗∗

—

Maximum current

Main unit

15.86

16.30

21.73

22.13

Zinc hot dipping steel plate

Appearance

Model

—

Ceiling panel

(Sold separately)

Panel color

Height

Width

Depth

Height

Width

Depth

(mm)

(kg)

320

700

800

—

320

1000

800

—

320

1350

800

—

320

1350

800

—

Main unit

Outer

dimension

Ceiling panel

(Sold separately)

—

Main unit

Total weight

Ceiling panel (Sold separately)

(kg)

—

Heat exchanger

Finned tube

Fan

Centrifugal

13.0/11.9/9.8

120

Centrifugal

19.0/16.2/13.3

120

Centrifugal

27.0/23.0/18.9

120

Centrifugal

33.0/28.0/23.1

120

Fan unit

Air filter

Standard air flow H/M/L

Motor

(m³/min.)

(W)

UFM11BFCE

UFM31BE

UFM51BFCE

UFM71BE

UFM21BFCE

UFM21BE

UFM61BE

UFM41BE

UFM61BFCE

UFM81BE

TCB-

Controller (Sold separately)

Sound pressure level

Sound power level

RBC-AMT31E, AS21E2, AX21U(W)-E2

H/M/L

(dB•A)

(mm)

40 / 37 / 33

55 / 52 / 48

12.7

40 / 37 / 34

55 / 52 / 49

15.9

42 / 39 / 36

57 / 54 / 51

15.9

44 / 41 / 38

59 / 56 / 53

15.9

H/M/L

Gas side

Liquid side

Drain port

Connecting pipe

6.4

9.5

VP25

∗ : IEC standard, ∗∗ : AS standard

– 13 –

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Indoor unit 1

Indoor unit 2

Outdoor unit

RAV-

SM562BT-E

SP1104AT(Z)(ZG)-E

10.0

SM802BT-E

SP1404AT(Z)(ZG)-E

12.5

Model

RAV-

Cooling capacity

Heating capacity

(kW)

11.2

14.0

Indoor unit

Power supply

1 phase 230V (220 – 240V) 50Hz

Running current

Power consumption

Power factor

(A)

(kW)

(%)

13.78 – 12.63

17.76 – 16.28

2.94

3.83

Cooling

EER

3.4

3.26

Energy efficiency class ∗

Running current

Power consumption

Power factor

15.82 – 14.50

3.41

Electrical

characteristics

(A)

(kW)

(%)

12.98 – 11.90

2.77

Heating

Fan

COP

4.04

4.11

Energy efficiency class ∗

Centrifugal

13.0 / 11.9 / 9.8

120

Centrifugal

19.0 / 16.2 / 13.3

120

Fan unit

Standard air flow H/M/L

Motor

(m³/min.)

(W)

Sound pressure level

Sound power level

H/M/L

(dB•A)

40 / 37 / 33

55 / 52 / 48

40 / 37 / 34

55 / 52 / 49

(dB•A)

Outdoor unit

Power supply

1 phase 230V (220 – 240V) 50Hz

Standard length

(m)

7.5

Min. length

Max. total length

Over 30m

Outer

dimension

40g/m (31m to 50m)

Outdoor lower

Outdoor higher

(m)

Height

difference

Fan

Propeller fan

101

Propeller fan

103

Fan unit

Standard air flow volume

Motor

(m³/min.)

(W)

100 + 100

15.9

100 + 100

15.9

Main

(mm)

Gas side

Sub

(mm)

12.7

15.9

Connecting

pipe

Main

Liquid side

(mm)

9.5

Sub

(mm)

6.4

9.5

Sound pressure level

Sound power level

Cooling/Heating

(dB•A)

49 / 50

66 / 67

51 / 52

68 / 69

∗ : IEC standard

– 14 –

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1-1-3. Under CeilingType

Indoor unit

Model

RAV-SM

562CT-E

802CT-E

1102CT-E

1402CT-E

Outdoor unit

RAV-SP 562AT(Z)(ZG)-E 802AT(Z)(ZG)-E 1104AT(Z)(ZG)-E 1404AT(Z)(ZG)-E

Cooling capacity

Heating capacity

Power supply

(kW)

5.0

5.6

7.1

8.0

10.0

11.2

12.5

14.0

1 phase 230V (220 – 240V) 50Hz

Running current (A)

Power consumption(kW)

6.61 – 6.06

9.47 – 8.93

12.51 – 11.47

17.30 – 15.86

1.41

2.1

2.67

3.73

Power factor

EER

(%)

Cooling

3.55

3.38

3.75

3.35

Energy efficiency class ∗

Energy rating ∗∗

Electrical

characteristics

Running current (A)

Power consumption(kW)

7.03 – 6.44

10.20 – 9.35

12.28 – 11.25

16.93 – 15.52

1.50

2.20

2.62

3.65

Power factor

COP

(%)

Heating

3.73

3.64

4.27

3.84

Energy efficiency class ∗

Energy rating ∗∗

—

Maximum current

Main unit

15.48

15.90

21.35

Shine white

Appearance

Ceiling panel

Model

—

(Sold separately)

Panel color

Height

Width

Depth

Height

Width

Depth

(mm)

(kg)

210

910

680

—

210

1180

680

—

210

1595

680

—

210

1595

680

—

Main unit

Outer

dimension

Ceiling panel

(Sold separately)

—

Main unit

Total weight

Ceiling panel (Sold separately)

(kg)

—

Heat exchanger

Fan unit

Finned tube

Fan

Centrifugal

13.0/11.2/10.0

Centrifugal

18.5/16.7/14.6

Centrifugal

27.5/24.0/21.2

120

Centrifugal

30.0/26.0/23.1

120

Standard air flow H/M/L

Motor

(m³/min.)

(W)

Air filter

Attached main unit

RBC-AMT31E, AS21E2, TCB-SC642TLE2, AX21UCE2

Controller (Sold separately)

Sound pressure level

Sound power level

H/M/L

(dB•A)

(mm)

36 / 33 / 30

51 / 48 / 45

12.7

38 / 36 / 33

53 / 51 / 48

15.9

41 / 38 / 36

56 / 53 / 50

15.9

43 / 40 / 37

58 / 55 / 52

15.9

H/M/L

Gas side

Liquid side

Drain port

Connecting pipe

6.4

9.5

VP25

∗ : IEC standard, ∗∗ : AS standard

– 15 –

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Indoor unit 1

Indoor unit 2

Outdoor unit

RAV-

SM562CT-E

SP1104AT(Z)(ZG)-E

10.0

SM802CT-E

SP1404A(Z)(ZG)-E

12.5

Model

RAV-

Cooling capacity

Heating capacity

(kW)

11.2

14.0

Indoor unit

Power supply

1 phase 230V (220 – 240V) 50Hz

Running current

Power consumption

Power factor

(A)

(kW)

(%)

12.51 – 11.47

17.30 – 15.86

2.67

3.73

Cooling

EER

3.75

3.35

Energy efficiency class ∗

Running current

Power consumption

Power factor

12.28 – 11.25

2.62

16.93 – 15.52

3.65

Electrical

characteristics

(A)

(kW)

(%)

Heating

Fan

COP

4.27

3.84

Energy efficiency class ∗

Centrifugal

13.0 / 11.2 / 10.0

Centrifugal

18.5 / 16.7 / 14.6

Fan unit

Standard air flow H/M/L

Motor

(m³/min.)

(W)

Sound pressure level

Sound power level

H/M/L

(dB•A)

36 / 33 / 30

51 / 48 / 45

38 / 36 / 33

53 / 51 / 48

(dB•A)

Outdoor unit

Power supply

1 phase 230V (220 – 240V) 50Hz

Standard length

(m)

7.5

Min. length

Max. total length

Over 30m

Outer

dimension

40g/m (31m to 50m)

Outdoor lower

Outdoor higher

(m)

Height

difference

Fan

Propeller fan

101

Propeller fan

103

Fan unit

Standard air flow volume

Motor

(m³/min.)

(W)

100 + 100

15.9

100 + 100

15.9

Main

(mm)

Gas side

Sub

(mm)

12.7

15.9

Connecting

pipe

Main

Liquid side

(mm)

9.5

Sub

(mm)

6.4

9.5

Sound pressure level

Sound power level

Cooling/Heating

(dB•A)

49 / 50

66 / 67

51 / 52

68 / 69

∗ : IEC standard

– 16 –

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1-1-4. High WallType

Indoor unit

Model

RAV-

(kW)

SM562KRT-E

SM802KRT-E

Outdoor unit

SP562AT(Z)(ZG)-E

SP802AT(Z)(ZG)-E

Cooling capacity

Heating capacity

Power supply

5.0

5.6

6.9

8.0

1 phase 230V (220 – 240V) 50Hz

Running current (A)

Power consumption(kW)

8.33 – 7.63

13.15 – 12.05

1.39

2.4

Power factor

EER

(%)

3.60

Cooling

2.88

Energy efficiency class ∗

Energy rating ∗∗

—

Electrical

characteristics

Running current (A)

Power consumption(kW)

8.14 – 7.46

1.55

12.91 – 11.84

2.4

Power factor

COP

(%)

Heating

3.61

3.33

Energy efficiency class ∗

Energy rating ∗∗

—

Maximum current

Main unit

15.34

15.47

Pure white

Appearance

Ceiling panel

Model

—

(Sold separately)

Panel color

Height

Width

Depth

Height

Width

Depth

(mm)

(kg)

298

998

221

—

298

998

221

—

Main unit

Outer

dimension

Ceiling panel

(Sold separately)

—

Main unit

Total weight

Ceiling panel (Sold separately)

(kg)

—

Heat exchanger

Fan unit

Finned tube

Fan

Cross flow fan

14.0 / 12.5 / 10.7

Cross flow fan

18.5 / 14.6 / 12.2

Standard air flow H/M/L

Motor

(m³/min.)

(W)

Air filter

Attached main unit

RBC-AMT31E, AS21E2, TCB-SC642TLE2, AX21UCE2

(FCU comes with WH-H2UE)

Controller (Sold separately)

Sound pressure level

Sound power level

H/M/L

(dB•A)

(mm)

39 / 36 / 33

54 / 51 / 48

12.7

45 / 41 / 36

60 / 56 / 51

15.9

H/M/L

Gas side

Liquid side

Drain port

Connecting pipe

6.4

9.5

VP16

∗ : IEC standard, ∗∗ : AS standard

– 17 –

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Indoor unit 1

Indoor unit 2

Outdoor unit

RAV-

SM562KRT-E

SP1104AT(Z)(ZG)-E

10.0

SM802KRT-E

SP1404AT(Z)(ZG)-E

12.3

Model

RAV-

Cooling capacity

Heating capacity

(kW)

11.2

14.0

Indoor unit

Power supply

1 phase 230V (220 – 240V) 50Hz

Running current

Power consumption

Power factor

(A)

(kW)

(%)

12.98 – 11.90

18.00 – 16.50

2.77

3.88

Cooling

EER

3.61

3.17

Energy efficiency class ∗

Running current

Power consumption

Power factor

13.12 – 12.03

2.80

17.76 – 16.28

3.83

Electrical

characteristics

(A)

(kW)

(%)

Heating

Fan

COP

4.00

3.66

Energy efficiency class ∗

Cross flow fan

14.0 / 12.5 / 10.7

Cross flow fan

18.5 / 14.6 / 12.2

Fan unit

Standard air flow H/M/L

Motor

(m³/min.)

(W)

Sound pressure level

Sound power level

H/M/L

(dB•A)

39 / 36 / 33

54 / 51 / 48

45 / 41 / 36

60 / 56 / 51

(dB•A)

Outdoor unit

Power supply

1 phase 230V (220 – 240V) 50Hz

Standard length

(m)

7.5

Min. length

Max. total length

Over 30m

Outer

dimension

40g/m (31m to 50m)

Outdoor lower

Outdoor higher

(m)

Height

difference

Fan

Propeller fan

101

Propeller fan

103

Fan unit

Standard air flow volume

Motor

(m³/min.)

(W)

100 + 100

15.9

100 + 100

15.9

Main

(mm)

Gas side

Sub

(mm)

12.7

15.9

Connecting

pipe

Main

Liquid side

(mm)

9.5

Sub

(mm)

6.4

9.5

Sound pressure level

Sound power level

Cooling/Heating

(dB•A)

49 / 50

66 / 67

51 / 52

68 / 69

∗ : IEC standard

– 18 –

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1-1-5. Compact 4-Way Cassette (600 × 600)Type

Indoor unit

Model

RAV-SM562MUT-E

Outdoor unit

RAV-SP562AT(Z)(ZG)-E

Cooling capacity

Heating capacity

Power supply

(kW)

5.0

5.6

1 phase 230V

Running current (A)

Power consumption(kW)

6.6 – 7.15

1.53

Power factor

EER

(%)

Cooling

3.27

Energy efficiency class

Energy rating

4.5

Electrical

characteristics

Running current (A)

Power consumption(kW)

6.62 – 7.21

1.54

Power factor

COP

(%)

Heating

3.64

Energy efficiency class

Energy rating

4.5

Maximum current

Main unit

15.53

Zinc hot dipping steel plate

Appearance

Model

RBC-UM11PG(W)-E

Ceiling panel

(Sold separately)

Panel color

Moon-white (Muncel 2.5GY 9.0 / 0.5)

Height

Width

Depth

Height

Width

Depth

(mm)

(kg)

268

Main unit

575

Outer

dimension

Ceiling panel

(Sold separately)

700

Main unit

Total weight

Ceiling panel (Sold separately)

(kg)

Heat exchanger

Finned tube

Turbo fan

13.3 / 11.2 / 9.1

Fan

Fan unit

Air filter

Standard air flow H/M/L

Motor

(m³/min.)

(W)

—

Controller (Sold separately)

Sound pressure level

Sound power level

As per enclosure

43 / 39 / 34

58 / 54 / 49

12.7

H/M/L

(dB•A)

(mm)

H/M/L

Gas side

Liquid side

Drain port

Connecting pipe

6.4

VP25

– 19 –

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Indoor unit 1

Indoor unit 2

Outdoor unit

RAV-

SM562MUT-E

SP1104(Z)(ZG)-E

10.0

Model

RAV-

Cooling capacity

Heating capacity

(kW)

11.2

Indoor unit

Power supply

1 phase 230V (220 – 240V) 50Hz

Running current

Power consumption

Power factor

(A)

(kW)

(%)

12.51 – 11.47

2.67

Cooling

EER

3.75

Energy efficiency class ∗

Running current

Power consumption

Power factor

12.51 – 11.47

2.67

Electrical

characteristics

(A)

(kW)

(%)

Heating

Fan

COP

4.19

Energy efficiency class ∗

Turbo fan

13.3 / 11.2 / 9.1

Fan unit

Standard air flow H/M/L

Motor

(m³/min.)

(W)

Sound pressure level

Sound power level

H/M/L

(dB•A)

43 / 39 / 34

58 / 54 / 49

(dB•A)

Outdoor unit

Power supply

1 phase 230V (220 – 240V) 50Hz

Standard length

(m)

7.5

Min. length

Max. total length

Over 30m

Outer

dimension

40g/m (31m to 50m)

Outdoor lower

Outdoor higher

(m)

Height

difference

Fan

Propeller fan

101

Fan unit

Standard air flow volume

Motor

(m³/min.)

(W)

100 + 100

15.9

Main

(mm)

Gas side

Sub

(mm)

12.7

Connecting

pipe

Main

Liquid side

(mm)

9.5

Sub

(mm)

6.4

Sound pressure level

Sound power level

Cooling/Heating

(dB•A)

49 / 50

66 / 67

∗ : IEC standard

– 20 –

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1-2. Outdoor Unit

Model name

Outdoor unit

RAV-SP 562AT(Z)(ZG)-E 802AT(Z)(ZG)-E 1104AT(Z)(ZG)-E 1404AT(Z)(ZG)-E

1 phase 230V (220 – 240V) 50Hz

(Power exclusive to outdoor is required.)

Power supply

Type

Motor

Pole

Hermetic compressor

Compressor

(kW)

(kg)

3.75

Refrigerant charged

Refrigerant control

1.5

2.1

3.1

Pulse motor valve

Standard length

Max. total length

(m)

7.5

Inter

connecting pipe

Additional refrigerant charge

under long piping connector

20g/m

(21m to 50m)

40g/m

(31m to 50m)

40g/m

(31m to 75m)

40g/m

(31m to 75m)

Outdoor lower

Height

(m)

difference

Outdoor higher

Height

(mm)

795

900

320

795

900

320

1340

900

320

1340

900

320

Outer dimension Width

Depth

Appearance

Total weight

Heat exchanger

Fan

Silky shade (Muncel 1Y8.5/0.5)

(kg)

Finned tube

Propeller fan

Fan unit

Standard air flow

(m³/h)

(W)

101

103

100 + 100

15.9

Motor

100 + 100

15.9

Gas side

Liquid side

(mm)

(dB•A)

(°C)

12.7

6.4

15.9

9.5

Connecting pipe

9.5

Sound pressure level

Cooling/Heating

46 / 47

63 / 64

47 / 49

64 / 66

49 / 50

66 / 67

51 / 52

68 / 69

Sound power level

Outside air temperature, Cooling

Outside air temperature, Heating

43 to –15°C

(°C)

15 to –15°C

15 to –20°C

– 21 –

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1-3. Operation Characteristic Curve

• Operation characteristic curve <Super Digital Inverter>

RAV-SP1104AT-E, SP1404AT-E / RAV-SP1104ATZ-E, SP1404ATZ-E / RAV-SP1104ATZG-E, SP1404ATZG-E

RAV-SP1104

RAV-SP1404

RAV-SP1104

• Conditions

Indoor : DB27˚C/WB19˚C

Outdoor : DB35˚C

Air flow : High

Indoor : DB20˚C

Outdoor : DB7˚C/WB6˚C

Air flow : High

Pipe length : 7.5m

230V

Pipe length : 7.5m

230V

Compressor speed (rps)

• Capacity variation ratio according to temperature

RAV-SP1104AT-E, SP1404AT-E / RAV-SP1104ATZ-E, SP1404ATZ-E / RAV-SP1104ATZG-E, SP1404ATZG-E

105

120

110

100

• Conditions

Indoor : DB20˚C

Indoor air flow : High

Pipe length : 7.5m

Indoor : DB27˚C/WB19˚C

Indoor air flow : High

Pipe length : 7.5m

32 33 34 35 36 37 38 39 40 41 42 43

-20 -18 -16 -14 -12 -10 -8 -6 -4 -2

8 10

Outdoor temp. (˚C)

– 22 –

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2. CONSTRUCTION VIEWS (EXTERNAL VIEWS)

2-1. Indoor Unit

RAV-SM564UT-E

1000 or more

860 to 910 Ceiling open dimension

An obstacle

1000 or more

The space that is necessary

for equipping and service

300

Take-in port of wiring

Bottom face of ceiling

Indoor unit

Bottom face of ceiling

Refrigerant pipe connecting port

Ø6.4 (Liquid side)

Drain upstanding size

Drain pipe

Refrigerant pipe connecting port

Ø12.7 (Gas side)

connecting port

(Meterial : PP)

397.5

263

106.5 72 241.5

105

337.5

157

Bottom face of ceiling

129

For branch duct knockout square hole Ø150

Hanging bolt M10 or Ø3/8(procured by locally)

256

Electric parts box

77 10 5 74

950 Panel external dimension

780 Hanging bolt pitch

323

132

Ø162

129

For branch duct

knockout square

hole Ø150

105

45˚

Ceiling panel

(sold separately)

105

Bottom face

of ceiling

269

Ø162

For branch duct knockout

square hole Ø150

(2 positions)

840 Unit external dimension

28.5

362.5

105

372.5

Knockout for simple

0A for Ø100

For branch duct knockout

square hole Ø150

Bottom face of ceiling

155

187

Z view

Indoor unit

Bottom face of ceiling

Unit : mm

– 23 –

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RAV-SM804UT-E

1000 or more

860 to 910 Ceiling open dimension

An obstacle

1000 or more

The space that is necessary

for equipping and service

300

Take-in port of wiring

Bottom face of ceiling

Indoor unit

Bottom face of ceiling

Drain upstanding size

Refrigerant pipe connecting port

Ø9.5 (Liquid side)

Drain pipe

connecting port

(Meterial : PP)

397.5

263

106.5 72 241.5

105

337.5

Refrigerant pipe connecting port

Ø15.9 (Gas side)

157

For branch duct knockout square hole Ø150

Bottom face of ceiling

129

Electric parts box

Hanging bolt M10 or Ø3/8 (procured by locally)

77 10 5 74

950 Panel external dimension

780 Hanging bolt pitch

323

256

132

Ø162

129

For branch duct

knockout square

105

hole Ø150

45˚

Ceiling panel

(sold separately)

105

Bottom face

of ceiling

269

Ø162

For branch duct knockout

square hole Ø150

(2 positions)

840 Unit external dimension

28.5

362.5

105

372.5

For branch duct knockout

square hole Ø150

Knockout for simple 0A for Ø100

155

187

Bottom face of ceiling

Z view

Bottom face of ceiling

Indoor unit

Bottom face of ceiling

Unit : mm

– 24 –

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RAV-SM1104UT-E, RAV-SM1404UT-E

1000 or more

860 to 910 Ceiling open dimension

An obstacle

1000 or more

The space that is necessary

for equipping and service

300

Take-in port of wiring

Bottom face of ceiling

Indoor unit

Bottom face of ceiling

Refrigerant pipe connecting port

Drain pipe

Drain upstanding size

Ø9.5 (Liquid side)

connecting port

(Meterial : PP)

Refrigerant pipe connecting port

Ø15.9 (Gas side)

397.5

263

106.5 72 241.5

105

337.5

157

For branch duct knockout square hole Ø150

Hanging bolt M10 or Ø3/8 (procured by locally)

319

Bottom face of ceiling

129

Electric parts box

77 10 5 137

950 Panel external dimension

780 Hanging bolt pitch

323

132

Ø162

137

129

For branch duct

knockout square

hole Ø150

105

45˚

Ceiling panel

(sold separately)

105

Bottom face

of ceiling

269

Ø162

840 Unit external dimension

For branch duct

knockout square hole Ø150

(2 positions)

362.5

105

372.5

28.5

For branch duct knockout

square hole Ø150

Knockout for simple 0A for Ø100

155

187

Bottom face of ceiling

Z view

Indoor unit

Bottom face of ceiling

Unit : mm

– 25 –

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2-2. Outdoor Unit

RAV-SP1104AT-E, RAV-SP1404AT-E / RAV-SP1104ATZ-E, RAV-SP1404ATZ-E /

RAV-SP1104ATZG-E, RAV-SP1404ATZG-E

9 5 5 5

2 4

1 3 4 0

4 0

9 4

9 5 5 5

6 1 3

4 0

6 0 5

1 5 5

5 4

4 8

9 5 5 5

1 7 0

3 4

4 6

5 8 1

5 3 4

7 4

5 8 1

5 3 4

7 0

8 5

1 2 1

6 5 5

3 6 0

1 2 8 1 1 8

3 6 5

7 4

1 7 . 5

6 5

– 26 –

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RAV-TWP30E2, RAV-TWP50E2 (SimultaneousTwin)

Inner diameter Ø C

Inner

diameter Ø D

Inner

diameter Ø D

Model (RBC-)

Liquid side

Ø9.5

Ø6.4

TWP30E2

Gas side

Liquid side

Gas side

Ø15.9 Ø12.7

Ø9.5 Ø9.5

Ø15.9 Ø15.9

TWP50E2

– 27 –

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3. SYSTEMATIC REFRIGERATING CYCLE DIAGRAM

3-1. Indoor Unit

• Single type (Combination of 1 indoor unit and 1 outdoor unit)

(Indoor unit)

Distributor

(Strainer incorporated)

TCJ sensor

Strainer

Air heat

exchanger

TC sensor

Refrigerant pipe

at liquid side

(Outer dia : ØB)

Refrigerant pipe

at gas side

(Outer dia : ØA)

To outdoor unit

Dimension table

Capillary tube specifications

Outer diameter of refrigerant pipe

Model AIU-

SM56 type

Inner dia. × Length × Q’ty

Indoor unit

Gas side ØA

Liquid side ØB

Ø2 × 250 × 2, Ø2 × 350 × 1

Ø2 × 700 × 1

SM56, 80 type

12.7

6.4

SM80 type

Ø2 × 250 × 3, Ø2 × 500 × 1

Ø2 × 200 × 1, Ø2 × 300 × 2

Ø2 × 350 × 2, Ø2 × 700 × 1

SM110, 140 type

15.9

9.5

SM110, 140 type

• Twin type (Combination of 2 indoor units and 1 outdoor unit)

(Indoor unit A)

(Indoor unit B)

Distributor

(Strainer incorporated)

TCJ sensor

Strainer

Air heat

exchanger

Air heat

exchanger

TC sensor

Refrigerant pipe

at liquid side

(Outer dia : ØA)

Refrigerant pipe

at gas side

(Outer dia : ØB)

Refrigerant pipe

at liquid side

(Outer dia : ØA)

Refrigerant pipe

at gas side

(Outer dia : ØB)

Branch pipe

Refrigerant pipe

at liquid side

(Outer dia : ØD)

Refrigerant pipe

at liquid side

(Outer dia : ØC)

To outdoor unit

Indoor unit

SM56 × 2

SM80 × 2

Branch pipe RBC-

TWP30E2

6.4

9.5

12.7

15.9

9.5

15.9

TWP50E2

– 28 –

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3-2. Outdoor Unit

RAV-SP1104AT-E, SP1104ATZ-E, SP1104ATZG-E, RAV-SP1404AT-E, SP1404ATZ-E, SP1404ATZG-E

TO sensor

TS sensor

PMV

TL sensor

Strainer

TE sensor

Check joint

Capillary

Ø4 ×Ø3 (6 pcs.)

Cooling: High pressure

Heating: Low pressure

Heat exchanger

Ø8, 2 rows, 52 stages

FP1.45, flat fin

Distributor

Refrigerant pipe

at liquid side Ø9.5

Packed valve

TD sensor

In cooling operation

In heating operation

Refrigerant pipe

at gas side Ø15.9

Ball valve

Strainer

Muffler

Cooling: Low pressure

Heating: High pressure

Ø25 × L180

Ø25 × L210

Accumulator Rotary compressor

(2500cc) (DA422A3F-25M)

3-3. Systematic Diagram of Refrigerating Cycle

RAV-SP1104AT-E, RAV-SP1104ATZ-E, RAV-SP1104ATZG-E

Pressure

(MPa) (kg/cm²g)

Pd Ps Pd Ps

Pipe surface temperature (°C)

Indoor/Outdoor

temp. conditions

(DB/WB) (°C)

Compressor

drive revolution Indoor

frequency

(rps)

Indoor heat

exchanger

Outdoor heat

exchanger

Discharge

Suction

fan

(TD)

(TS)

(TC)

(TL) (TE)

Indoor Outdoor

Standard

Cooling Overload

Low load

2.57 0.99 26.2 10.1

3.30 1.09 33.7 11.1

HIGH

LOW

HIGH

LOW

HIGH

27/19

32/24

18/15.5

20/–

35/–

43/–

–5/–

7/6

1.74 0.75 17.8

2.32 0.73 23.7

7.7

7.4

Standard

Heating Overload

Low load

3.22 1.17 32.9 11.9

2.17 0.30 22.1 3.1

–15

–14

–13

30/–

24/18

–15/–

15/–

This compressor has 4-pole motor. The value when compressor frequency (Hz) is measured by a clamp

meter becomes 2 times of No. of compressor revolutions (rps).

RAV-SP1404AT-E, RAV-SP1404ATZ-E, RAV-SP1404ATZG-E

Pressure

Pipe surface temperature (°C)

Indoor/Outdoor

temp. conditions

(DB/WB) (°C)

Compressor

drive revolution Indoor

frequency

(rps)

Indoor heat

exchanger

Outdoor heat

exchanger

(MPa) (kg/cm²g)

Discharge

Suction

fan

(TD)

(TS)

(TC)

(TL) (TE)

Indoor Outdoor

Standard

Cooling Overload

Low load

2.72 0.90 27.8

9.2

HIGH

LOW

HIGH

LOW

HIGH

27/19

32/24

18/15.5

20/–

35/–

43/–

–5/–

7/6

3.34 1.07 34.1 10.9

1.75 0.76 17.9

2.59 0.69 26.4

7.8

7.0

Standard

Heating Overload

Low load

3.13 1.05 31.9 10.7

2.40 0.21 24.5 2.1

–22

–19

–18

30/–

24/18

–15/–

15/–

This compressor has 4-pole motor. The value when compressor frequency (Hz) is measured by a clamp

meter becomes two times of No. of compressor revolutions (rps).

– 29 –

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4. WIRING DIAGRAM

4-1. Indoor Unit

RAV-SM564UT-E, RAV-SM804UT-E, RAV-SM1104UT-E, RAV-SM1404UT-E

LM1

LM3

LM2

LM4

CN333

(WHI)

10 11 12 13 14 15 16 17 18 19 20

CN510

(WHI)

CN504 CN34

(WHI) (RED)

Motor drive

circuit

CN104

(YEL)

TCJ

CN334

(WHI)

CN102

(RED)

CN101

(BLK)

Fuse, F01

T6.3A, 250V~

Fuse, F02

T3.15A, 250V~

–

RED

WHI

BLK

DC20V

DC15V

DC12V

DC7V

CN519

(WHI)

Power

supply

circuit

CN67

(BLK)

CN508

(RED)

Control P.C. Board

for Indoor Unit

MCC-1570

CN80

P01

BLK

(GRN)

CN73

(RED)

(EXCT)

CN66

(WHI)

CN70

(WHI)

CN41

(BLU)

CN309

(YEL)

CN61 CN32

(YEL) (WHI)

CN60

(WHI)

CN50

(WHI)

CN20

(BLU)

(T10)

(Fan drive)

Indoor unit

earth screw

CN51

(RED)

BLK

1 2 3

A B

P.C. board

MCC-1440

Terminal

CN001

(WHI)

U3 U4

for central

Serial

signal

remote controller

Wired

Adapter for

Connection interface

(Option)

remote controller wireless remote controller

L N

Signal phase

220–240V~, 50Hz

Color

Identification

Symbol

Parts name

Outdoor unit

Fan Motor

BLK : BLACK

BLU : BLUE

RED : RED

GRN : GREEN

WHI : WHITE

Indoor temp. sensor

Temp. sensor

TC, TCJ

LM1, LM2, LM3, LM4

Louver motor

Outdoor unit

earth screw

Drain pump Motor

Float Switch

YEL : YELLOW

– 30 –

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4-2. Outdoor Unit (Wiring Diagram)

RAV-SP1104AT-E, RAV-SP1404AT-E / RAV-SP1104ATZ-E, RAV-SP1404ATZ-E /

RAV-SP1104ATZG-E, RAV-SP1404ATZG-E

Reactor

(RED) (WHI) (BLK)

(GRY)

(WHI)

P04 P05

P06 P07

CN200 CN201 CN202

CN400

(WHI)

FM01

FM02

CN300

(WHI)

49C

SW804 SW801 SW800

CN609

(BLU)

CN610

(YEL)

Control P.C. Board

MCC-1570

SW803

CN604

(WHI)

L/F

CN603

(WHI)

Fuse, F01

T25A, 250V~

CN602

(YEL)

(BLK)

P09

SW802

Fuse, F03

T10A, 250V~

CN601

(WHI)

RY704

CN600

(WHI)

CN704

(BLU)

CN701

(WHI)

CN04

(WHI)

P01

P02

CN710

(WHI)

(RED)

(WHI)

PMW

20SF

Earth

screw

Earth

screw

Symbol

Parts name

Compressor

1 2 3

FM01, 02

PMV

20SF

49C

Fan Motor

Pulse Motor Valve

Outdoor unit

Indoor unit

Discharge pipe temp. sensor

Suction pipe temp. sensor

Heat exchanger temp. sensor 1

Heat exchanger temp. sensor 2

Outside temp. sensor

4-way valve coil

Power supply

220–240V~, 50Hz

Earth

screw

Color

Identification

BLK

BLU

RED : RED

GRY : GRAY

WHI

YEL

Compressor case thermostat

Relay

L/F

Line Filter

: BLACK

: BLUE

indicates the terminal block.

Alphanumeric characters in the cycle indicate the terminal No.

2. The two-dot chain line indicates the wiring procured locally.

3. indicates the P.C. board.

: WHITE

: YELLOW

4. For the indoor unit circuit, refer to the wiring diagram of the indoor unit.

– 31 –

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5. SPECIFICATIONS OF ELECTRICAL PARTS

5-1. Indoor Unit

RAV-SM564UT-E, RAV-SM804UT-E

No.

Parts name

Fan motor (for indoor)

Type

Specifications

Output (Rated) 60 W

SWF-230-60-2R

328 mm

Thermo. sensor (TA-sensor)

Heat exchanger sensor (TCJ-sensor)

Heat exchanger sensor (TC-sensor)

Float switch

10 kΩ at 25°C

Ø6 mm, 1000 mm

Ø6 mm, 950 mm

FS-0218-102

MDP-1401

Drain pump motor

RAV-SM1104UT-E, RAV-SM1404UT-E

No.

Parts name

Type

Specifications

Fan motor

ICF-280-150-1

328 mm

Output (Rated) 90 W

10 kΩ at 25°C

Thermo. sensor (TA-sensor)

Heat exchanger sensor (TCJ-sensor)

Heat exchanger sensor (TC-sensor)

Float switch

Ø6 mm, 1000 mm

Ø6 mm, 950 mm

FS-0218-102

MDP-1401

10 kΩ at 25°C

Drain pump motor

5-2. Outdoor Unit (Parts Ratings)

RAV-SP1104AT-E, RAV-SP1404AT-E / RAV-SP1104ATZ-E, RAV-SP1404ATZ-E /

RAV-SP1104ATZG-E, RAV-SP1404ATZG-E

No.

Parts name

Type

Specifications

Compressor

DA422A3F-25M

—

Outdoor fan motor

ICF-280-A100-1

Output 100W

Reactor

CH-62

5.7mH, 18.5A

AC240V

4-way valve coil

VHV-01AP552B1

PMV coil

UKV-A038

DC12V

P.C. board

MCC-1571

AC220 – 240V

AC250V, 25A

AC250V, 10A

AC250V, 3.15A

10 kΩ at 25°C

50 kΩ at 25°C

10 kΩ at 25°C

OFF: 125 4°C, ON: 90 5°C

Fuse (Mounted on P.C. board)

Outdoor temp. sensor (TO sensor)

Heat exchanger sensor (Te sensor)

Discharge temp. sensor (Td sensor)

Heat exchanger mid. Temp sensor (TL sensor)

Compressor thermo. (Protection)

—

US-622

5-3. Accessory Separate Sold Parts

RBC-U31PG(WS)-E, RBC-U31PG(W)-E (Ceiling panel)

RAV-SM564UT-E, RAV-SM804UT-E, RAV-SM1104UT-E, RAV-SM1404UT-E

No.

Parts name

Type

Specifications

Motor-louver

MP24ZN3N

DC 12 V

– 32 –

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6. REFRIGERANT R410A

This air conditioner adopts the new refrigerant HFC

(R410A) which does not damage the ozone layer.

6. When an air conditioning system charged with a

large volume of refrigerant is installed in a small

room, it is necessary to exercise care so that,

even when refrigerant leaks, its concentration

does not exceed the marginal level.

The working pressure of the new refrigerant R410A

is 1.6 times higher than conventional refrigerant

(R22). The refrigerating oil is also changed in

accordance with change of refrigerant, so be careful

that water, dust, and existing refrigerant or refriger-

ating oil are not entered in the refrigerant cycle of

the air conditioner using the new refrigerant during

installation work or servicing time.

If the refrigerant gas leakage occurs and its

concentration exceeds the marginal level, an

oxygen starvation accident may result.

7. Be sure to carry out installation or removal

according to the installation manual.

The next section describes the precautions for air

conditioner using the new refrigerant.

Improper installation may cause refrigeration

trouble, water leakage, electric shock, fire, etc.

Conforming to contents of the next section together

with the general cautions included in this manual,

perform the correct and safe work.

8. Unauthorized modifications to the air conditioner

may be dangerous. If a breakdown occurs

please call a qualified air conditioner technician

or electrician.

Improper repair’s may result in water leakage,

electric shock and fire, etc.

6-1. Safety During Installation/Servicing

As R410A’s pressure is about 1.6 times higher than

that of R22, improper installation/servicing may

cause a serious trouble. By using tools and materi-

als exclusive for R410A, it is necessary to carry out

installation/servicing safely while taking the following

precautions into consideration.

6-2. Refrigerant Piping Installation

6-2-1. Piping Materials and Joints Used

For the refrigerant piping installation, copper pipes

and joints are mainly used.

1. Never use refrigerant other than R410A in an air

conditioner which is designed to operate with

R410A.

Copper pipes and joints suitable for the refrigerant

must be chosen and installed.

Furthermore, it is necessary to use clean copper

pipes and joints whose interior surfaces are less

affected by contaminants.

If other refrigerant than R410A is mixed, pressure

in the refrigeration cycle becomes abnormally

high, and it may cause personal injury, etc. by a

rupture.

1. Copper Pipes

2. Confirm the used refrigerant name, and use tools

and materials exclusive for the refrigerant R410A.

It is necessary to use seamless copper pipes

which are made of either copper or copper alloy

and it is desirable that the amount of residual oil

is less than 40 mg/10 m.

The refrigerant name R410A is indicated on the

visible place of the outdoor unit of the air condi-

tioner using R410A as refrigerant.

Do not use copper pipes having a collapsed,

deformed or discolored portion (especially on

the interior surface).

To prevent mischarging, the diameter of the

service port differs from that of R22.

Otherwise, the expansion valve or capillary tube

may become blocked with contaminants.

3. If a refrigeration gas leakage occurs during

installation/servicing, be sure to ventilate fully.

As an air conditioner using R410A incurs pres-

sure higher than when using R22, it is necessary

to choose adequate materials.

If the refrigerant gas comes into contact with fire,

a poisonous gas may occur.

4. When installing or removing an air conditioner,

do not allow air or moisture to remain in the

refrigeration cycle.

Thicknesses of copper pipes used with R410A

are as shown in Table 6-2-1. Never use copper

pipes thinner than 0.8mm even when it is avail-

able on the market.

Otherwise, pressure in the refrigeration cycle

may become abnormally high so that a rupture

or personal injury may be caused.

5. After completion of installation work, check to

make sure that there is no refrigeration gas

leakage.

NOTE:

Refer to the “6-6. Instructions for Re-use Piping

of R22 or R407C”.

If the refrigerant gas leaks into the room, coming

into contact with fire in the fan-driven heater,

space heater, etc., a poisonous gas may occur.

– 33 –

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Table 6-2-1 Thicknesses of annealed copper pipes

Thickness (mm)

Nominal diameter

Outer diameter (mm)

R410A

0.80

R22

0.80

1.00

1/4

3/8

1/2

5/8

6.4

9.5

0.80

12.7

15.9

0.80

1.00

1. Joints

For copper pipes, flare joints or socket joints are used. Prior to use, be sure to remove all contaminants.

a) Flare Joints

Flare joints used to connect the copper pipes cannot be used for pipings whose outer diameter exceeds

20 mm. In such a case, socket joints can be used.

Sizes of flare pipe ends, flare joint ends and flare nuts are as shown in Tables 6-2-3 to 6-2-5 below.

b) Socket Joints

Socket joints are such that they are brazed for connections, and used mainly for thick pipings whose

diameter is larger than 20 mm. Thicknesses of socket joints are as shown in Table 6-2-2.

Table 6-2-2 Minimum thicknesses of socket joints

Reference outer diameter of

copper pipe jointed (mm)

Minimum joint thickness

(mm)

Nominal diameter

1/4

3/8

1/2

5/8

6.4

9.5

0.50

0.60

0.70

0.80

12.7

15.9

6-2-2. Processing of Piping Materials

When performing the refrigerant piping installation, care should be taken to ensure that water or dust does not

enter the pipe interior, that no other oil other than lubricating oils used in the installed air conditioner is used,

and that refrigerant does not leak. When using lubricating oils in the piping processing, use such lubricating oils

whose water content has been removed. When stored, be sure to seal the container with an airtight cap or any

other cover.

1. Flare Processing Procedures and Precautions

a) Cutting the Pipe

By means of a pipe cutter, slowly cut the pipe so that it is not deformed.

b) Removing Burrs and Chips

If the flared section has chips or burrs, refrigerant leakage may occur.

Carefully remove all burrs and clean the cut surface before installation.

– 34 –

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c) Insertion of Flare Nut

d) Flare Processing

Make certain that a clamp bar and copper pipe have been cleaned.

By means of the clamp bar, perform the flare processing correctly.

Use either a flare tool for R410A or conventional flare tool.

ØD

Flare processing dimensions differ according

to the type of flare tool.

When using a conventional flare tool, be sure

to secure “dimension A” by using a gauge for

size adjustment.

Fig. 6-2-1 Flare processing dimensions

Table 6-2-3 Dimensions related to flare processing for R410A / R22

A (mm)

Outer

diameter

(mm)

Nominal

diameter

Thickness

(mm)

Conventional flare tool

(R410A)

Conventional flare tool

(R22)

Flare tool for

R410A, R22

clutch type

Clutch type Wing nut type Clutch type Wing nut type

1/4

3/8

1/2

5/8

6.4

9.5

0.8

1.0

0 to 0.5

1.0 to 1.5

1.5 to 2.0

2.0 to 2.5

0.5 to 1.0

1.0 to 1.5

1.5 to 2.0

12.7

15.9

Table 6-2-4 Flare and flare nut dimensions for R410A

Dimension (mm)

Nominal

diameter

Outer diameter

Thickness

(mm)

Flare nut width

(mm)

1/4

3/8

1/2

5/8

6.4

9.5

0.8

1.0

9.1

9.2

6.5

13.2

16.6

19.7

13.5

16.0

19.0

9.7

12.7

15.9

12.9

16.0

Table 6-2-5 Flare and flare nut dimensions for R22

Dimension (mm)

Nominal

diameter

Outer diameter

Thickness

(mm)

Flare nut width

(mm)

1/4

3/8

1/2

5/8

3/4

6.4

9.5

0.8

1.0

9.1

9.2

6.5

13.0

16.2

19.4

23.3

13.5

16.0

19.0

24.0

9.7

12.7

15.9

19.0

12.9

16.0

19.2

– 35 –

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Fig. 6-2-2 Relations between flare nut and flare seal surface

2. Flare Connecting Procedures and Precautions

a) Make sure that the flare and union portions do not have any scar or dust, etc.

b) Correctly align the processed flare surface with the union axis.

c) Tighten the flare with designated torque by means of a torque wrench.The tightening torque for R410A is

the same as that for conventional R22. Incidentally, when the torque is weak, the gas leakage may occur.

When it is strong, the flare nut may crack and may be made non-removable. When choosing the tighten-

ing torque, comply with values designated by manufacturers. Table 6-2-6 shows reference values.

NOTE:

When applying oil to the flare surface, be sure to use oil designated by the manufacturer. If any other oil is

used, the lubricating oils may deteriorate and cause the compressor to burn out.

Table 6-2-6 Tightening torque of flare for R410A [Reference values]

Tightening torque of torque

Nominal

diameter

Outer diameter

(mm)

Tightening torque

N•m (kgf•m)

wrenches available on the market

N•m (kgf•m)

1/4

3/8

1/2

5/8

6.4

9.5

14 to 18 (1.4 to 1.8)

33 to 42 (3.3 to 4.2)

50 to 62 (5.0 to 6.2)

63 to 77 (6.3 to 7.7)

16 (1.6), 18 (1.8)

42 (4.2)

12.7

15.9

55 (5.5)

65 (6.5)

– 36 –

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6-3. Tools

6-3-1. RequiredTools

Refer to the “4. Tools” (Page 8)

6-4. Recharging of Refrigerant

When it is necessary to recharge refrigerant, charge the specified amount of new refrigerant according to the

following steps.

Recover the refrigerant, and check no refrigerant

remains in the equipment.

When the compound gauge’s pointer has indicated

–0.1 Mpa (–76 cmHg), place the handle Low in the

fully closed position, and turn off the vacuum pump’s

power switch.

Connect the charge hose to packed valve service

port at the outdoor unit’s gas side.

Keep the status as it is for 1 to 2 minutes, and ensure

that the compound gauge’s pointer does not return.

Connect the charge hose of the vacuum pump

adapter.

Set the refrigerant cylinder to the electronic balance,

connect the connecting hose to the cylinder and the

connecting port of the electronic balance, and charge

liquid refrigerant.

Open fully both packed valves at liquid and gas

sides.

Place the handle of the gauge manifold Low in the

fully opened position, and turn on the vacuum pump’s

power switch. Then, evacuating the refrigerant in the

cycle.

(For refrigerant charging, see the figure below.)

1) Never charge refrigerant exceeding the specified amount.

2) If the specified amount of refrigerant cannot be charged, charge refrigerant bit by bit in COOL mode.

3) Do not carry out additional charging.

When additional charging is carried out if refrigerant leaks, the refrigerant composition changes in the

refrigeration cycle, that is characteristics of the air conditioner changes, refrigerant exceeding the

specified amount is charged, and working pressure in the refrigeration cycle becomes abnormally high

pressure, and may cause a rupture or personal injury.

(INDOOR unit)

(Liquid side)

(OUTDOOR unit)

Opened

Closed

(Gas side)

Refrigerant cylinder

(With siphon pipe)

Check valve

Open/Close valve

for charging

Service port

Electronic balance for refrigerant charging

Fig. 6-4-1 Configuration of refrigerant charging

– 37 –

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1) Be sure to make setting so that liquid can be charged.

2) When using a cylinder equipped with a siphon, liquid can be charged without turning it upside down.

It is necessary for charging refrigerant under condition of liquid because R410A is mixed type of refrigerant.

Accordingly, when charging refrigerant from the refrigerant cylinder to the equipment, charge it turning the

cylinder upside down if cylinder is not equipped with siphon.

[ Cylinder with siphon ]

[ Cylinder without siphon ]

Gauge manifold

OUTDOOR unit

c y l i n d e r

a n t i g e r R e f r

Refrigerant

cylinder

Electronic

balance

Electronic

balance

Siphon

R410A refrigerant is HFC mixed refrigerant.

Therefore, if it is charged with gas, the composi-

tion of the charged refrigerant changes and the

characteristics of the equipment varies.

Fig. 6-4-2

6-5. Brazing of Pipes

1) Phosphor bronze brazing filler tends to react

with sulfur and produce a fragile compound

water solution, which may cause a gas

leakage.Therefore, use any other type of

brazing filler at a hot spring resort, etc., and

coat the surface with a paint.

6-5-1. Materials for Brazing

1. Silver brazing filler

Silver brazing filler is an alloy mainly composed

of silver and copper. It is used to join iron, copper

or copper alloy, and is relatively expensive though

it excels in solderability.

2) When performing brazing again at time of

servicing, use the same type of brazing filler.

2. Phosphor bronze brazing filler

Phosphor bronze brazing filler is generally used

to join copper or copper alloy.

6-5-2. Flux

1. Reason why flux is necessary

3. Low temperature brazing filler

• By removing the oxide film and any foreign

matter on the metal surface, it assists the flow

of brazing filler.

Low temperature brazing filler is generally called

solder, and is an alloy of tin and lead. Since it is

weak in adhesive strength, do not use it for

refrigerant pipes.

• In the brazing process, it prevents the metal

surface from being oxidized.

• By reducing the brazing filler's surface tension,

the brazing filler adheres better to the treated

metal.

– 38 –

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2. Characteristics required for flux

6-5-3. Brazing

• Activated temperature of flux coincides with the

brazing temperature.

As brazing work requires sophisticated techniques,

experiences based upon a theoretical knowledge, it

must be performed by a person qualified.

• Due to a wide effective temperature range, flux

is hard to carbonize.

In order to prevent the oxide film from occurring in

the pipe interior during brazing, it is effective to

proceed with brazing while letting dry Nitrogen gas

flow.

• It is easy to remove slag after brazing.

• The corrosive action to the treated metal and

brazing filler is minimum.

• It excels in coating performance and is harm-

less to the human body.

Never use gas other than Nitrogen gas.

As the flux works in a complicated manner as

described above, it is necessary to select an

adequate type of flux according to the type and

shape of treated metal, type of brazing filler and

brazing method, etc.

1. Brazing method to prevent oxidation

1) Attach a reducing valve and a flow-meter to

the Nitrogen gas cylinder.

2) Use a copper pipe to direct the piping mate-

rial, and attach a flow-meter to the cylinder.

3. Types of flux

3) Apply a seal onto the clearance between the

piping material and inserted copper pipe for

Nitrogen in order to prevent backflow of the

Nitrogen gas.

• Noncorrosive flux

Generally, it is a compound of borax and boric

acid.

It is effective in case where the brazing tem-

perature is higher than 800°C.

4) When the Nitrogen gas is flowing, be sure to

keep the piping end open.

• Activated flux

Most of fluxes generally used for silver brazing

are this type.

5) Adjust the flow rate of Nitrogen gas so that it

is lower than 0.05 m³/Hr or 0.02 MPa

(0.2kgf/cm²) by means of the reducing valve.

It features an increased oxide film removing

capability due to the addition of compounds

such as potassium fluoride, potassium chloride

and sodium fluoride to the borax-boric acid

compound.

6) After performing the steps above, keep the

Nitrogen gas flowing until the pipe cools down

to a certain extent (temperature at which

pipes are touchable with hands).

7) Remove the flux completely after brazing.

4. Piping materials for brazing and used

brazing filler/flux

Piping

material

Used brazing

filler

Used

flux

Copper - Copper Phosphor copper Do not use

Flow meter

Copper - Iron

Iron - Iron

Silver

Paste flux

Vapor flux

Stop valve

Nitrogen gas

cylinder

From Nitrogen cylinder

1) Do not enter flux into the refrigeration cycle.

2) When chlorine contained in the flux remains

within the pipe, the lubricating oil deteriorates.

Therefore, use a flux which does not contain

chlorine.

Pipe

Nitrogen

gas

Rubber plug

3) When adding water to the flux, use water

which does not contain chlorine (e.g. distilled

water or ion-exchange water).

4) Remove the flux after brazing.

Fig. 6-5-1 Prevention of oxidation during brazing

– 39 –

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6-6. Instructions for Re-use Piping of R22 or R407C

6. Check the oil when the existing air conditioner was

Instruction of Works:

removed after refrigerant had been recovered.

In this case, if the oil is judged as clearly different

compared with normal oil

The existing R22 and R407C piping can be

reused for our digital inverter R410A products

installations.

• The refrigerator oil is copper rust green :

There is possibility that moisture is mixed with the

oil and rust generates inside of the pipe.

• There is discolored oil, a large quantity of the

remains, or bad smell.

NOTE)

Confirmation of existence of scratch or dent of the

former pipes to be applied and also confirmation of

reliability of the pipe strength are conventionally

referred to the local site.

• A large quantity of sparkle remained wear-out

powder is observed in the refrigerator oil.

If the definite conditions can be cleared,

it is possible to update the existing R22 and

R407C pipes to those for R410A models.

7. The air conditioner which compressor was ex-

changed due to a faulty compressor.

When the discolored oil, a large quantity of the

remains, mixture of foreign matter, or a large

quantity of sparkle remained wear-out powder is

observed, the cause of trouble will occur.

6-6-1. Basic Conditions Need to Reuse the

Existing Pipe

Check and observe three conditions of the refrigerant

piping works.

8. Installation and removal of the air conditioner are

repeated with temporary installation by lease and

etc.

9. In case that type of the refrigerator oil of the

existing air conditioner is other than the following oil

(Mineral oil), Suniso, Freol-S, MS (Synthetic oil),

alkyl benzene (HAB, Barrel-freeze), ester series,

PVE only of ether series.

1. Dry

(There is no moisture inside of the pipes.)

2. Clean (There is no dust inside of the pipes.)

3. Tight (There is no refrigerant leak.)

6-6-2. Restricted Items to Use the Existing Pipes

In the following cases, the existing pipes cannot be

reused as they are. Clean the existing pipes or ex-

change them with new pipes.

1. When a scratch or dent is heavy, be sure to use the

new pipes for the works.

• Winding-insulation of the compressor may

become inferior.

NOTE)

The above descriptions are results of confirmation by

our company and they are views on our air condition-

ers, but they do not guarantee the use of the existing

pipes of the air conditioner that adopted R410A in

other companies.

2. When the thickness of the existing pipe is thinner

than the specified “Pipe diameter and thickness” be

sure to use the new pipes for the works.

• The operating pressure of R410A is high

(1.6 times of R22 and R407C). If there is a scratch

or dent on the pipe or thinner pipe is used, the

pressure strength is poor and may cause break-

age of the pipe at the worst.

6-6-3. Branching Pipe for Simultaneous

Operation System

• In the concurrent twin system, when TOSHIBA-

specified branching pipe is used, it can be reused.

Branching pipe model name:

RBC-TWP30E-2, RBC-TWP50E-2

On the existing air conditioner for simultaneous

operation system (twin system), there is a case of

using branch pipe that has insufficient compressive

strength.

* Pipe diameter and thickness (mm)

Pipe outer diameter Ø6.4 Ø9.5 Ø12.7 Ø15.9 Ø19.0

R410A

Thickness

0.8

1.0

R22

(R407C)

In this case please change it to the branch pipe for

R410A.

• In case that the pipe diameter is Ø12.7 mm or less

and the thickness is less than 0.7 mm, be sure to use

the new pipes for works.

3. The pipes are left as coming out or gas leaks.

(Poor refrigerant)

• There is possibility that rain water or air including

moisture enters in the pipe.

4. Refrigerant recovery is impossible.

(Refrigerant recovery by the pump-down operation

on the existing air conditioner)

6-6-4. Curing of Pipes

When removing and opening the indoor unit or outdoor

unit for a long time, cure the pipes as follows:

• Otherwise rust may generate when moisture or

foreign matter due to dewing enters in the pipes.

• The rust cannot be removed by cleaning, and a new

piping work is necessary.

• There is possibility that a large quantity of poor

oil or moisture remains inside of the pipe.

Place position

Term

Curing manner

1 month or more

Less than 1 month

Every time

Pinching

5. A dryer on the market is attached to the existing

pipes.

Outdoors

Pinching or taping

• There is possibility that copper green rust gener-

ated.

Indoors

– 40 –

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6-6-5. Final Installation Checks

Is there no scratch or dent on the existing pipes?

Existing pipe: NO * Use a new pipes.

Is it possible to operate the existing air conditioner?

YES

* After the existing air conditioner operated in cooling mode

for approx. 30 minutes or longer*, recover the refrigerant.

* For cooling the pipes and recovering of oil

• Refrigerant recovery: Pump down method

Nitrogen gas pressure 0.5 Mpa

* Remove the existing air conditioner from the piping and

carry out flashing (nitrogen pressure 0.5 Mpa) to remove

the remains inside of the pipe.

Note] In case of twin, also be sure to flash the

branching pipe.

(If there is discharge of remains,

it is judged that there is a large quantity of remains.)

Was not largely discolored oil or

a large quantity of remains discharged?

(When the oil deteriorates, the color of the

oil changes to muddy and black color.)

Clean the pipes or use the new pipes.

If you are in trouble of

pipe cleaning, please contact us.

YES

„ Connect the indoor/outdoor units to the existing pipe.

• Use a flare nut attached to the main unit for the

indoor/outdoor units.

(Do not use the flare nut of the existing pipe.)

• Re-machine the flare machining size to size for R410A.

Piping necessary to change the flare nut/

machining size due to pipe compression.

„ In case that the gas pipe Ø19 mm is used for the

outdoor unit of SM803 (3 HP) or higher:

(Gas pipe size of our R410A model 3 to 5 HP is Ø15.9 mm)

1) Flare nut width: H

(mm)

Ø12.7 Ø15.9 Ø19.0

→ Turn the existing pipe switch on the cycle control

Copper pipe

Ø6.4

Ø9.5

P.C board of the outdoor unit to ON side.

outer dia.

At shipment from factory OFF → ON for existing pipe

(Refer to the table below.) (Be sure to set the contents

in the table below in order to restrict the refrigerating

cycle pressure of the equipment in the pipe standard.)

For R410A

Same

For R22

Same as above

as above

Existing pipe SW

Switch

2) Flare machining size: A

(mm)

3 HP

Bit 3 of SW801 → ON

Copper pipe

Ø6.4

Ø9.5

13.2

13.0

Ø12.7 Ø15.9 Ø19.0

outer dia.

4, 5 HP

Bit 3 of SW802 → ON

9.1

9.0

16.6

16.2

19.7

19.4

24.0

23.3

For R410A

For R22

Becomes large a little for R410A

Do not apply the refrigerator oil to the flare surface.

* (Airtight test), Vacuum dry, Refrigerant charge,

Gas leak check

Trial run

– 41 –

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6-6-6. Handling of Existing Pipe

6-6-7. Recovery Method of Refrigerant for

RAV-SP1104AT-E, RAV-SP1404AT-E

When using the existing pipe, carefully check it for

the following:

• Use the refrigerant recovery switch SW801 on the

P.C. board of the outdoor unit to recover refriger-

ant when the indoor unit or outdoor unit is moved.

• Wall thickness (within the specified range)

• Scratches and dents

• Water, oil, dirt, or dust in the pipe

• Flare looseness and leakage from welds

• Deterioration of copper pipe and heat insulator

Operation method

1. Turn on the power of the air conditioner.

2. Select the FAN mode for indoor unit operation

with the remote controller.

Cautions for using existing pipe

• Do not reuse the flare to prevent gas leak.

3. Set SW804 on the P.C. board of the outdoor unit

to all OFF, and then push SW801 for one second

or more.

Replace it with the supplied flare nut and then

process it to a flare.

The air conditioner enters the forced cooling

mode for up to 10 minutes.

• Blow nitrogen gas or use an appropriate means to

keep the inside of the pipe clean.

Operation or handling the valve to recover

refrigerant during this time period.

If discolored oil or much residue is discharged,

wash the pipe.

4. Upon completion of refrigerant recovery, close

the valve and push SW801 for at least one

second to stop operation.

• Check welds, if any, on the pipe for gas leak.

When the pipe corresponds to any of the follow-

ing, do not use it. Install a new pipe instead.

5. Turn off the power.

• The pipe has been open (disconnected from

indoor unit or outdoor unit) for a long period.

• The pipe has been connected to an outdoor unit

that does not use refrigerant R22, R410A or

R407C.

P.C. board

Refrigerant recovery

switch SW801

Optional connector

CN610

• The existing pipe must have a wall thickness

equal to or larger than the following thickness.

Special operation

select switch SW804

Reference outside diameter

(mm)

Wall thickness

(mm)

Existing pipe switch

SW802

Ø9.5

Ø15.9

Ø19.1

0.8

1.0

• Never use any pipe with a wall thickness less than

these thicknesses due to insufficient pressure

capacity.

DANGER

Take care for an electric shock because the

P.C.board is electrified.

• To use an existing Ø19.1 mm pipe, set bit 3 of

SW802 (switch for existing pipe) on the P.C. board

of the outdoor unit to ON. In this case, the heating

performance may be reduced depending on the

outside air temperature and room temperature.

SW802

When shipped from factory

When using existing pipe

– 42 –

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7. INDOOR CONTROL CIRCUIT

7-1. Indoor Controller Block Diagram

7-1-1. Connection of Main (Sub) Remote Controller

Main (sub) master remote controller (Max. 2 units)

Weekly timer

Display LCD

Display LED

Function setup

Key switch

Display LCD

LCD driver

MCU

Function setup

Key switch

CN2

CN1

MCU

DC5V

Remote controller

communication circuit

Power circuit

∗3

Power

circuit

Secondary

battery

Indoor unit

#1 (Master)

(Follower)

Indoor control P.C. board (MCC-1570)

DC20V

Remote controller

EEPROM

TA sensor

TC sensor

TCJ sensor

Float input

communication circuit

DC5V

DC12V

× 4

Humidifier output

Same as left

Louver

motor

∗2

Driver

MCU

Drain

pump

Auto grille

panel

Outside

output

Indoor

MCU

fan motor

Serial send/

receive circuit

Run

Warning

Defrost

Thermo. ON

COOL

Fan motor

control circuit

synchronous

signal input circuit

HEAT

FAN

Power circuit

DC280V

Outdoor unit

Up to 8 units are connectable. ∗1

∗1 However Max.7 units are connectable in

case of mounting network adapter when two

main (sub) remote controllers are connected.

Outdoor unit

* Case of TCC-LINK adapter

Case of TCC-LINK adapter

(Option)

∗2 The network adapter is mounted to only 1 unit.

TCC-LINK adapter is mounted to the master unit.

TCC-LINK

adapter P.C. board

(MCC-1440)

∗3 Connection of the weekly timer to the sub

remote controller is unavailable.

TCC-LINK

Central controller

(Option)

TCC-LINK

communication circuit

Outdoor unit

– 43 –

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7-1-2. Connection of Wireless Remote Controller Kit

Indoor unit

#1 (Master)

Wireless remote controller kit

Receiver P.C. board (MCC-1504)

Display LED

Receive circuit

Buzzer

Function setup SW

Grille up/down SW

MCU

DC5V

Power

circuit

Remote controller

communication circuit

Temporary

operation SW

(Follower)

Indoor control P.C. board (MCC-1570)

DC20V

Remote controller

EEPROM

TA sensor

TC sensor

TCJ sensor

Float input

communication circuit

DC5V

DC12V

× 4

Humidifier output

Same as left

Louver

motor

∗2

Driver

MCU

Drain

pump

Auto grille

panel

Outside

output

Indoor

MCU

fan motor

Serial send/

receive circuit

Run

Warning

Defrost

Thermo. ON

COOL

Fan motor

control circuit

synchronous

signal input circuit

HEAT

FAN

Power circuit

DC280V

Outdoor unit

Up to 8 units are connectable. ∗1

∗1 However Max.7 units are connectable in

case of mounting network adapter when two

main (sub) remote controllers are connected.

Outdoor unit

* Case of TCC-LINK adapter

Case of TCC-LINK adapter

(Option)

∗2 The network adapter is mounted to only 1 unit.

TCC-LINK adapter is mounted to the master unit.

TCC-LINK

adapter P.C. board

(MCC-1440)

TCC-LINK

Central controller

(Option)

TCC-LINK

communication circuit

Outdoor unit

– 44 –

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7-1-3. Connection of Both Main (Sub) Remote Controller and Wireless Remote Controller Kit

Indoor unit

#1 (Master)

Main (sub) master remote controller

Wireless remote controller kit

(Max. 2 units)

Weekly timer

Receiver P.C. board

(MCC-1504)

Display LED

Display

LCD

Function

setup

Display

LCD

driver

Receive

circuit

Function setup SW

Grille up/down SW

Display

LED

Key

MCU

switch

Function

setup

MCU

CN2

CN1

Buzzer

MCU

Key

switch

DC5V

Remote controller

communication circuit

Power

circuit

DC5V

∗3

Power

circuit

Remote controller

communication circuit

Temporary

operation SW

Power

circuit

Secondary

battery

(Follower)

Indoor control P.C. board (MCC-1570)

DC20V

Remote controller

communication circuit

EEPROM

TA sensor

TC sensor

DC5V

DC12V

× 4

Humidifier output

Same as left

TCJ sensor

Float input

Louver

∗2

Driver

motor

MCU

Drain

pump

Auto grille

panel

Outside

output

Indoor

MCU

fan motor

Serial send/

receive circuit

Run

Warning

Defrost

Thermo. ON

COOL

Fan motor

control circuit

synchronous

signal input circuit

HEAT

FAN

Power circuit

DC280V

Outdoor unit

Up to 8 units are connectable. ∗1

Outdoor unit

* Case of TCC-LINK adapter

∗1 However Max.7 units are connectable in case of

mounting network adapter.

Case of TCC-LINK adapter

(Option)

∗2 The network adapter is mounted to only 1 unit.

TCC-LINK adapter is mounted to the master unit.

TCC-LINK

adapter P.C. board

(MCC-1440)

∗3 Connection of the weekly timer to the sub remote

controller is unavailable.

∗4 In the left system, set the wireless remote

controller side as the follower remote controller

when using the main (sub) wired remote controller

as the master remote controller.

TCC-LINK

Central controller

(Option)

TCC-LINK

communication circuit

Outdoor unit

– 45 –

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7-2. Control Specifications

No.

Item

Outline of specifications

1) Distinction of outdoor unit

Remarks

When power

supply is reset

When the power supply is reset, the outdoors are distin-

guished and the control is selected according to the

distinguished result.

2) Setting of indoor fan speed and existence of air direction

adjustment

Based on EEPROM data, select setting of the indoor fan

speed and the existence of air direction adjustment.

Air speed (rpm)/

Air direction adjustment

Operation

mode selection

1) Based on the operation mode selecting command from the

remote controller, the operation mode is selected.

Remote controller

Control outline

command

STOP

FAN

Air conditioner stops.

Fan operation

COOL

DRY

Cooling operation

Dry operation

HEAT

AUTO

Heating operation

Ta: Room temp.

Ts: Setup temp.

To: Outside temp.

• COOL/HEAT operation mode is

automatically selected by Ta, Ts

and To for operation.

• The operation is performed as

shown in the following figure

according to Ta value at the first

time only. (In the range of Ts +

α –1 < Ta < Ts + α + 1, Cooling

thermo. OFF (Fan)/Setup air

volume operation continues.)

Cooling

operation

+1.0

Cooling thermo. OFF (Fan)

• Setup air volume

(˚C)

Ts + α

-1.0

Heating

operation

• α is corrected according to the outside temperature.

Outside temp.

No To

Correction value (α)

–1K

k = deg

To ≥ 24°C

24 > To ≥ 18°C

To < 18°C

To error

+1K

Room temp.

control

1) Adjustment range: Remote controller setup temperature (°C)

COOL/DRY

18 to 29

HEAT

AUTO

18 to 29

17 to 27

Wired type

18 to 29

16 to 30

Wireless type

18 to 30

– 46 –

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No.

Item

Outline of specifications

Remarks

Shift of suction

Room temp.

control

2) Using the Item code 06, the setup temperature in heating

operation can be corrected.

temperature in heating

(Continued)

operation

Setup data

Setup temp. correction

+0°C

+2°C

+4°C

+6°C

Setting at shipment

Setup data

Automatic

capacity control

1) Based on the difference between Ta and Ts, the operation

frequency is instructed to the outdoor unit.

2) Cooling operation

(GA control)

Every 90 seconds, the room temperature difference

between temperature detected by Ta and Ts and the

varied room temperature value are calculated to obtain

the correction value of the frequency command and then

the present frequency command is corrected.

Ta (n) – Ts (n) : Room temp. difference

: Counts of detection

Ta (n-1) – Ts (n) : Varied room temp. value

n – 1 Counts of detection of 90 seconds before

3) Heating operation

Every 1 minute (60 sec.), the room temperature differ-

ence between temperature detected by Ta and Ts and the

varied room temperature value are calculated to obtain

the correction value of the frequency command and then

the present frequency command is corrected.

Ts (n) – Ta (n)

: Room temp. difference

: Counts of detection

Ta (n) – Ta (n – 1): Varied room temp. value

n – 1

: Counts of detection of 1 minute before

4) Dry operation

The frequency correction control is same as those of the

cooling operation.

However the maximum frequency is limited to approxi-

mately “S6”.

Note) When LOW is set up, the maximum frequency is

limited to approximately “SB”.

Automatic

cooling/heating

control

1) The judgment of selecting COOL/HEAT is carried out as

shown below. When +1.5 exceeds against Tsh 10 minutes

and after thermo.-OFF, heating operation (Thermo. OFF)

exchanges to cooling operation. Description in the

Tsc: Setup temp. in

cooling operation

Tsh: Setup temp. in

heating operation

+ temp. correction of

room temp. control

parentheses shows an example of cooling ON/OFF.

Cooling

(˚C)

+1.5

(Cooling ON)

Tsc

Tsh

(Cooling OFF)

-1.5

Heating

When –1.5 lowers against Tsc 10 minutes and after

thermo. OFF, cooling operation (Thermo. OFF) exchanges

to heating operation.

2) For the automatic capacity control after judgment of

cooling/heating, see Item 4.

3) For temperature correction of room temp. control in

automatic heating, see Item 3.

– 47 –

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No.

Item

Outline of specifications

Remarks

Air speed selection 1) Operation with (HH), (H), (L) or [AUTO] mode is carried

out by the command from the remote controller.

HH > H+ > H > L+ >

L > UL

(2) When the air speed mode [AUTO] is selected, the air

speed varies by the difference between Ta and Ts.

<COOL>

Ta (˚C)

+3.0

+2.5

+2.0

+1.5

+1.0

+0.5

Tsc

(HH)

H+ (HH)

H (HH)

L+ (H+)

L (H)

–0.5

L (L+)

• Controlling operation in case when thermo of remote

controller works is same as a case when thermo of the

body works.

• If the air speed has been changed once, it is not changed

for 3 minutes. However when the air volume is exchanged,

the air speed changes.

• When cooling operation has started, select a downward

slope for the air speed, that is, the high position.

• If the temperature is just on the difference boundary, the

air speed does not change.

• Mode in the parentheses indicates one in automatic

cooling operation.

<HEAT>

Ta (˚C)

L (L+)

(–0.5) –1.0

L+ (H)

(0) Tsh

H (H+)

(+0.5) +1.0

H+

(HH)

(+1.0) +2.0

(HH)

(+1.5) +3.0

(+2.0) +4.0

Value in the parentheses indicates one when thermostat of

the remote controller works.

Value without parentheses indicates one when thermostat of

the body works.

• If the air speed has been changed once, it is not changed

for 1 minute. However when the air speed I exchanged, the

air speed changes.

• When heating operation has started, select an upward

slope for the air speed, that is, the high position.

• If the temperature is just on the difference boundary, the

air speed does not change.

• Mode in the parentheses indicates one in automatic

heating operation.

Tc: Indoor heat

exchanger sensor

temperature

• In Tc ≥ 60°C, the air speed increases by 1 step.

– 48 –

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No.

Item

Outline of specifications

Remarks

Air speed

selection

(Continued)

Standard

Type 1

Type 3

Type 6

Item code

[5d]

Selection of high ceiling

type

SW501 (1)/(2)

OFF/OFF

ON/OFF

OFF/ON

ON/ON

Item code:

Tap

HEAT COOL HEAT COOL HEAT COOL HEAT COOL

HH HH HH HH

[5d] or selection of high

ceiling on P.C. board

SW501

H+, H H+, H

L+, L L+, L

H+ H+, H H+, H

H+

L+

H+

L+

SM56

SM80

SM110

SM140

Tap

Revolution speed (rpm)

610

550

500

450

400

390

370

350

340

330

320

310

250

630

590

530

470

450

440

410

380

370

350

330

320

250

700

670

660

640

620

610

550

490

480

450

400

300

700

670

660

650

640

630

560

490

480

460

430

420

300

3) In heating operation, the mode changes to [UL] if thermostat

is turned off.

4) If Ta ≥ 25°C when heating operation has started and when

defrost operation has been cleared, the air conditioner

operates with (H) mode or higher mode for 1 minute after Tc

entered in E zone of cool air discharge preventive control

(Item 7).

5) In automatic cooling/heating operation, the revolution

frequency of (HH) is set larger than that in the standard

cooling/heating operation.

However only when the

high ceiling selection is

set to [Standard]

However the revolution

F5 F4

frequency is restricted in

the automatic heating

operation as shown in

the following figure.

(˚C)

6) Dry clean operation

[DRY] is displayed.

When performing dry operation after stopping the cooling

operation, the mode becomes [UL] (210 rpm).

– 49 –

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No.

Item

Outline of specifications

Remarks

Cool air discharge

preventive control

1) In heating operation, the indoor fan is controlled

In D and E zones, the

based on the detected temperature of Tc sensor or priority is given to air

Tcj sensor. As shown below, the upper limit of the

revolution frequency is restricted.

volume selection setup

of remote controller.

However B zone is assumed as C zone for

6 minutes and after when the compressor

activated.

In A zone while thermo

is ON, [PRE-HEAT

(Heating ready)] is

displayed.

In defrost operation, the control value of Tc is

shifted by 6°C.

(˚C)

Tcj

E zone

D zone

OFF

C zone

B zone

A zone

Freeze preventive control 1) The cooling operation (including Dry operation) is

Tcj:

(Low temperature release)

performed as follows based on the detected

temperature of Tc sensor or Tcj sensor.

Indoor heat exchanger

sensor temperature

When [J] zone is detected for 6 minutes (Following

figure), the commanded frequency is decreased

from the real operation frequency. After then the

commanded frequency changes every 30 seconds

while operation is performed in [J] zone.

In [K] zone, time counting is interrupted and the

operation is held.

When [ I ] zone is detected, the timer is cleared

and the operation returns to the normal operation.

If the commanded frequency becomes S0

because the operation continues in [J] zone, the

return temperature A is raised from 5°C to 12°C

until [ I ] zone is detected and the indoor fan

operates with [L] mode.

(˚C)

In heating operation, the freeze-preventive control

works if 4-way valve is not exchanged and the

following conditions are satisfied.

(However the temperature for J zone dashing

control is changed from 2°C to –5°C.)

Tcn:

Tc temperature when 5

minutes elapsed after

activation

Tc (n – 1):

Tc temperature at start

time

• When

is established 5 minutes after

‚

activation.

Tcn ≤ Tc (n – 1) – 5

‚

Tcn < Tc (n – 1) – 1 and Tcn ≤ Ta < 5°C

– 50 –

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No.

Item

Outline of specifications

Remarks

High-temp.

release control

1) The heating operation is performed as follows based on the

detected temperature of Tc sensor or Tcj sensor.

• When [M] zone is detected, the commanded frequency is

decreased from the real operation frequency. After then

the commanded frequency changes every 30 seconds

while operation is performed in [M] zone.

However this control is

ignored in case of the

follower unit of the twin.

• In [N] zone, the commanded frequency is held.

• When [L] zone is detected, the commanded frequency is

returned to the original value by approx. 6Hz every 60

seconds.

Tc(˚C)

Setup at shipment

Tcj

Control temp. (°C)

56 (54)

52 (52)

NOTE:

Same status as that

when “thermostat-OFF”

(status that the air

When the operation has started or when Tc or Tcj < 30°C at

start of the operation or after operation start, temperature is

controlled between values in parentheses of A and B.

conditioner enters in the

room temp. monitor

mode when the

temperature reached the

setup temperature on

the remote controller)

10 Drain pump

control

1) In cooling operation (including Dry operation), the drain

pump is usually operated.

2) If the float switch works while drain pump drives, the

compressor stops, the drain pump continues the operation,

and a check code is output.

Check code [P10]

3) If the float switch works while drain pump stops, the

compressor stops and the drain pump operates. If the float

switch keeps operating for approx. 4 minutes, a check code

is output.

4) If the humidifier “Provided” is judged, compressor [ON], fan

[ON] and TC sensor value > 33°C, the drain pump operates.

11 After-heat

elimination

When heating operation stops, in some cases, the indoor fan

operates with (L) for approx. 30 seconds.

[Dry operation

displayed.

] is

– 51 –

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No. Item

Outline of specifications

Remarks

12 Louver 1) Louver position setup

control

The louver position at

horizontal discharge

position at under

SM80 differs from

that at over SM110.

• When the louver position is changed, the position moves necessarily

to downward discharge position once to return to the set position.

• The louver position can be set up in the following operation range.

In cooling/dry operation

In heating/fan operation

• In group twin/triple operation, the louver positions can be set up

collectively or individually.

2) Swing setup

The swinging louver

moves usually up to

the ceiling side from

the louver position of

the set time.

• [SWING] is displayed and the following display is repeated.

In all operations

(Repeats)

• In group twin operation, the louver positions can be set up collec-

tively or individually.

3) When the unit stopped or the warning was output, the louver is

automatically set to full closed position.

4) When PRE-HEAT

(Heating ready) is displayed (Heating operation

started or defrost operation is performed), heating thermo is off or self-

cleaning is performed, the louver is automatically set to horizontal

discharge position.

∗ The louver which air direction is individually set or the locked louver

closes fully when the unit stops and the louver is automatically set to

horizontal discharge position when PRE-HEAT

(Heating ready) is

displayed, heating thermo is off or self-cleaning is performed.

<<Individual air direction setup>>

UNIT LOUVER

Setup from the

• Pushing

Louver select button enables every discharge port to

remote controller

set up the air direction.

UNIT

without

^LOUVERbutton

• In case of no input (key operation) for approx. 5 seconds during setting of

individual air direction (during displaying of louver No. on the remote

controller screen), the remote controller screen returns to the normal

display screen.

is unavailable.

For the setup opera-

tion, refer to

“How to set up louver

individually” of Item

“Setup at local site/

Others”.

• For the air direction illustration during normal operation, the air direction

of the least No. among the louvers which are block-set is displayed.

• While individual air direction is being set, the remote controller operation

(Illustration of air direction) and operation of the real machine are linked.

UNIT LOUVER

• When selecting a case,

louver No. is not displayed, the air directions of all the louvers are

collectively set up.

Louver select button is not pushed or

Using same as the

present 4-way Air

Discharge Cassette

Type is possible

[02]

[03]

[01]

E-box

Refrigerant pipe

[04]

Drain pipe

– 52 –

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No.

Item

Outline of specifications

Remarks

12 Louver control <<Selection of Swing mode>>

(Continued)

• For the Swing mode, the following three types of modes are

SWING/FIX

selectable and settable by keeping Swing/Direction

button pushed for 4 seconds or more on the remote controller.

On the remote control-

ler before the wired

remote controller

(RBC-AMT31E), the

mode cannot be moved

Standard (4 pieces: same phase) swing

→ Data: [0001 (At shipment)]

to the select mode

SWING/FIX

When Swing operation is selected, four louvers align at the

horizontal discharge position and then start the Swing

operation at the same time.

even if pushing

button for a long time.

Dual swing → Data: [0002]

Carry out setting

‚

operation during stop of

the unit; otherwise the

unit stops operation.

When operation is selected, the louvers of louver No. [01]

and [03] move to the horizontal discharge position, the

louvers of louver No. [02] and [04] move to the downward

discharge position and then start the Swing operation at the

same time.

The standard swing

performs the same

swing operation as the

present operation

(2 series).

Cycle swing → Data: [0003]

When operation is selected, the louver No. [01] moves to the

horizontal discharge position, [03] to the downward dis-

charge position, [02] and [04] to the middle position and

then start the Swing operation at the same time.

For the setting opera-

tion, refer to [How to

set up type of the

swings] in Item “Setup

at local site/Others”.

• Three types of the swing modes can be also selected and set

by the setup data of Item code (DN) [F0].

• In case of selecting the Swing mode, “Dual swing” or “Cycle

swing”, the following numerals is displayed at the center of the

SWING/FIX

remote controller screen for approx. 3 seconds when

button was pushed to select [SWING].

(No display for the standard swing)

On the remote control-

ler before the wired

remote controller

(RBC-AMT31E),

flashing showing the

Swing mode is not

indicated.

Alternate lighting

(0.5 sec.)

Alternate lighting

(0.5 sec.)

Cycle swing

Dual swing

<<Louver lock (Louver fix)>>

• For the air direction setup for each discharge port, the louver

position can be locked during the normal operation.

On the remote control-

ler before the wired

remote controller

• An arbitrary air direction of an arbitrary louver can be

UNIT LOUVER

(RBC-AMT31E),

registered and set by keeping

button pushed for

UNIT LOUVER

button is not

4 seconds or more on the remote controller.

provided.

• The louver lock can be set by registering the setup data to Item

code (DN) [F1] to [F4] according to the following table.

Carry out setting

operation during stop

of the unit; otherwise

the unit stops opera-

Item code Objective louver No.

Setup data

0000: Release (At shipment)

0001: Horizontal discharge position

0005: Downward discharge position

– 53 –

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No.

Item

Outline of specifications

] goes on the remote

Remarks

12 Louver control • If there is the locked louver in the unit, [

For the setting

operation, refer to

[How to set louver

lock] of Installation

Manual.

controller screen.

(Continued)

• While the following controls are performed, the louvers operate

even if executing the louver lock.

Control which ignores lock

Operation stop

Objective louver No.

Full-close position

‚

„

ꢀ

†

When heating operation started

Heating thermo. OFF

During defrost operation

Initialize operation

Horizontal discharge position

Full-close position

It is position check

operation and it does

not link with the real

louver and air

Self-clean operation

Horizontal discharge position

direction setup

• The real louver corresponding to the louver No. displayed on the

remote controller screen during setting of louver lock operates

swinging.

(Illustration on the

remote controller

screen).

<<Selection of horizontal discharge position>>

• For the horizontal discharge position, selection of the cold draft-

less (Control for cold air draft) position and smudging-less

(Control for smudge of ceiling) position is available.

• Although “Smudging-less” position has been set at shipment from

the factory, “Cold draft-less” position can be selected by changing

[0000 (At shipment)] to [0002] on the Item code (DN) [45].

• To realize “360° discharge”, it is necessary to set “cold draft-less”

position.

If selecting the cold

draft-less position,

effect of the smudg-

ing-less weakens.

• When using the optional part “Height adjustment spacer” or

installing the unit at position where there is no ceiling, it is

recommended to set DN Item code [45] to [0002] to use it at “cold

draft-less” position.

13 HA control

1) This control is connected to TV control or remote start/stop I/F,

etc, and start/stop are available by HA signal input from the

remote position.

In the group opera-

tion, use this control

by connecting to

either master or

follower indoor unit.

2) This control outputs start/stop status to HA output terminal.

3) I/O specifications conform to JEMA regulations.

4) This control outputs [Operation OFF (STOP) signal] to HA output

terminal while self-cleaning works. However selection of [Operation

ON (Operating) signal] is possible by changing [0000 (At ship-

ment)] of Item code (DN) [CC] to [0001]. In this case, if HA is input

during self-clean operation during operation of the air conditioner,

the self-clean operation is not performed. (Unit stops.)

14 Frequency

fixed operation

(Test run)

Command frequency

is approximately [S7]

1) When pushing [CHK] button for 4 seconds or more, [TEST] is

displayed on the display screen and the mode enters in Test run

mode.

2) Push [ON/OFF] button.

3) Using [MODE] button, set the mode to [COOL] or [HEAT].

• Do not use other mode than [COOL]/[HEAT] mode.

• During test run operation, the temperature cannot be adjusted.

• An error is detected as usual.

• A frequency fixed operation is performed.

4) After the test run, push [ON/OFF] button to stop the operation.

(Display in the display part is same as the procedure in Item 1.)

5) Push [CHK] button to clear the test run mode.

([TEST] display in the display part disappears and the status

returns to the normal stop status.)

– 54 –

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No.

Item

Outline of specifications

Remarks

[FILTER ] goes on.

15 Filter sign display

(Except wireless

type)

1) The operation time of the indoor fan is calculated, the filter

reset signal is sent to the remote controller when the speci-

fied time (2500H) has passed, and it is displayed on LCD.

2) When the filter reset signal has been received from the

remote controller, time of the calculation timer is cleared.

In this case, the measurement time is reset if the specified

time has passed, and display on LCD disappears.

16 Central control

mode selection

1) Setting at the centerl controller side enables to select the

contents which can be operated on the remote controller at

indoor unit side.

2) Setup contents

• 64 line central controller (TCB-SC642TLE2)

Display at remote

controller side

(No display)

[Individual]: Operated on the remote controller

(Priority to second pushing)

[Central 1]: ON/OFF operation cannot be operated on

the remote controller.

[Central

] goes on

[Central 2]: ON/OFF, mode selection, temp. setup

operations cannot be operated on the remote

controller.

[Central

] goes on

[Central 3]: Mode selection and temp. setup operations

cannot be operated on the remote controller.

[Central

] goes on

[Central 4]: Mode selection cannot be operated on the

remote controller.

* In case of the wireless type, the display lamp does not

change but the contents are same. If operating an item

which is prohibited by the central control mode from the

remote controller, it is notified with the receive sound,

Pi, Pi, Pi, Pi, Pi (5 times).

17 Energy-saving

control

1) Selecting [AUTO] mode enables an energy-saving to be

operated.

2) The setup temperature is shifted (corrected) in the range

not to lose the comfort ability according to input values of

various sensors.

3) Data (Input value room temp. Ta, Outside temp. To, Air

volume, Indoor heat exchanger sensor temp. Tc) for

20 minutes are taken the average to calculate correction

value of the setup temperature.

4) The setup temperature is shifted every 20 minutes, and the

shifted range is as follows.

In cooling time: +1.5 to – 1.0K

In heating time: –1.5 to +1.0K

18 Max. frequency

cut control

1) This control is operated by selecting [AUTO] operation mode.

2) COOL operation mode: It is

controlled according to the following

figure if To < 28°C.

3) HEAT operation mode: It is controlled

according to the following figure if

To > 15°C.

Max. frequency is

restricted to approximately

the rated heating frequency

Ta(˚C)

Tsh

Normal control

–3

–4

Tsc

Normal control

Max. frequency is

restricted to approximately

the rated cooling frequency

– 55 –

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No.

Item

Outline of specifications

Remarks

19 DC motor

1) When the fan operation has started, positioning of the

stator and the rotor are performed.

(Moves slightly with tap sound)

2) The motor operates according to the command from the

indoor controller.

Notes)

• When the fan rotates while the air conditioner stops due to

entering of outside air, etc, the air conditioner may operate

while the fan motor stops.

• When a fan lock is found, the air conditioner stops, and an

error is displayed.

Check code [P12]

20 Self-clean operation

(Dry operation)

1) When cooling operation mode (AUTO COOL, COOL, DRY) stopped, the following

three dry operations are performed.

Compressor

ON period

Self-clean

operation period

FAN

Drain pump

Louver

0 to 10 min.

10 to 60 min.

60 min. to

None

1 hour

2 hours

Fan (UL)

STOP

Horizontal discharge position

2) During operation of self-clean,

lights on the wired

On the remote

remote controller screen. However the operation lamp

(Green LED) goes off.

controller before the

wired remote control-

ler (RBC-AMT31E),

Dry operation display

is not output. And it is

not also on the

3) To stop the self-clean operation, push twice the [ON/OFF]

button on the remote controller continuously. (Stop the

operation as compressor ON time in the table above: 10

minutes or below.)

wireless remote

controller.

4) When the follower unit executes self-clean operation in the

group connection, the segment of

is displayed on the

It is recognized as

[STOP] from the

remote monitor side.

wired remote controller screen via master unit.

∗ If self-clean operation is not used, set invalidity (does

not use) of the self-clean operation by changing [0001

(At shipment) of Item code (DN) [D3] to [0000].

∗ To erase the

display during operation of self-clean,

change Item code [D4] from [0000: Display

(At shipment)] to [0001: Non-display].

SAVE

21 Save operation

1) Turn on

2) During operation of save operation,

wired remote controller.

button on the remote controller.

Display is not output

on the remote

controller before the

wired remote control-

ler (RBC-AMT31E).

SAVE

lights on the

3) During save operation, the current release control is

performed with the restriction ratio set in EEPROM on the

Carry out setting

operation during stop

of the unit; otherwise

the unit stops opera-

tion.

outdoor unit.

SAVE

4) The restriction ratio can be set by keeping

button

pushed for 4 seconds or more on the remote controller.

5) When validating the save operation, the next operation

starts with save operation valid because contents are

held even when operation stops, operation mode changes

or power supply is reset.

For the setup opera-

tion, refer to “How to

set up contents of

save operation” of

Installation Manual.

6) The restriction ratio can be set by changing the setup

data of Item code (DN) [C2] in the range of 50 to 100%

(every 1%, Setting at shipment: 75%).

– 56 –

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No.

Item

Outline of specifications

Remarks

22 8°C heating/

Frost protective

operation

1) This functional is intended for the cold latitudes and performs

objective heating operation (8°C heating operation).

2) This function is valid only for combination with the outdoor

units (Super Digital Inverter (SDI) 4-series outdoor units).

In a group connection,

if there is even one

combination with other

unit, “This function is not

provided.” is displayed.

3) Using the indoor DN code [D1] (1 bit), Valid/Invalid of this

function is set up at the customer’s side.

∗ The setup by DN code is Invalid [0]/Valid [1] and Invalid [0]

has been set at the shipment.

4) This operation is the heating operation which sets +8°C as

the setup temperature of the target.

The setup temperature

jumps from [18] to [8].

5) This function starts operation by pushing temperature

button during heating operation; besides by pushing

button for 4 seconds or more after temperature

reached the minimum set temperature.

6) To stop/release this operation, select and execute one from

the following operations.

Push

continues.

button: Heating operation (18°C setting)

‚

Push [START/STOP] button: Air conditioner stops.

(Heating 18°C operation at the next start)

MODE

Push

operation continues.

: Other operation mode is selected and the

7) As the setup temperature is +8°C and the human heating is

not targeted, the cold air discharge preventive control (Item 7)

is made invalid to suppress the intermittent operation.

8) The settings of the air direction and air volume are

changeable during this operation.

9) The indoor fan stops to protect the compressor for

2 minutes after start of heating operation (Thermo-ON) by

this function.

– 57 –

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Function

Connector No.

Pin No.

Specifications

Remarks

Humidifier output is ON when heating operation is performed, when thermostat is on, when the fan is on.

∗ The setting of Humidifier provided + Drain pump ON is performed by short-circuit of CN70 or from the

remote controller. (DN [40] = 0001)

DC12V

Humidifier output (∗)

CN66

Output (Open collector)

DC12V

Setting at shipment: Interlock of ON by indoor unit operation, with OFF by stop operation

∗ The single operation setting by FAN button on the remote controller is performed on the remote

controller (DN [31] = 0000 → 0001)

Ventilation output

CN32

CN61

Output (Open collector)

ON/OFF input

HA ON/OFF input (J01:YES/NO=Pulse (At shipment from factory) /Static input selection)

Remote controller prohibited input

Operation output (Open collector)

DC12V

Permission/Prohibition of remote controller operation stop is performed by input.

Operation ON (Answer back of HA)

Warning output (Open collector)

DC12V

Warning output ON

Defrost output (Open collector)

ON when outdoor unit is defrosted

Thermostat ON output (Open collector) ON when real thermostat is on. (Compressor ON)

Option output

CN60

Cooling output (Open collector)

Heating output (Open collector)

Fan output (Open collector)

DC12V

ON when operation mode is cooling system (COOL, DRY, Cooling/Heating automatic cooling)

ON when operation mode is heating system (HEAT, Cooling/Heating automatic heating)

ON when indoor fan is on. (When air cleaner is used) OFF while clean operation is performed.

Outside error input

CN80

CN20

Generate the warning code “L30” (continuously for 1 minute) and stop the operation forcibly.

Outside error input

DC12V

Panel operation input

Panel up output (Open collector)

Panel down output (Open collector)

The grille is controlled according to up/down operation from the remote controller.

∗ Setting of automatic up/down grille provided is performed on the remote controller.

(DN [30] = 0000 → 0001)

AUTO up/down grille

(∗)

Selection of option error input (Protective operation display of device attached to outside) or Humidifier

setting input (Vaporizing + Drain pump ON)

Humidifier is set at shipment from factory.

FILTER

Option error /

Humidifier setting (∗)

CN70

∗ Setting of option error input is performed on the remote controller. (DN [2A] = 0002 → 0001)

CHK

Operation check

This check is used to check indoor operation. (Performs operation of indoor fan “H”, Louver horizontal

and Drain pump ON without communication with outdoor and remote controller)

CN71

CN72

CN73

DISP

Exhibition mode

Communication is available by indoor unit and remote controller only.

Indoor unit forced thermostat OFF operation

Demand input

EXCT

Demand

∗ This option is not provided to oversea models.

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7-4. Indoor Print Circuit Board

<MCC-1570>

– 59 –

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8. CIRCUIT CONFIGURATION AND CONTROL SPECIFICATIONS

8-1. Outdoor Controls

8-1-1. Print Circuit Board

RAV-SP1104AT-E, RAV-SP1404AT-E

RAV-SP1104ATZ-E, RAV-SP1404ATZ-E

RAV-SP1104ATZG-E, RAV-SP1404ATZG-E

<MCC-1571>

Fan motor output

(Lower side)

CN300 (White)

Fan motor output

Compressor output terminal

Electrolytic

condenser

(Upper side)

CN202

CN201

CN200

CN400 (White)

Case thermostat connector

CN609 (Blue)

Power supply circuit protective fuse

F100 250V, 3.15A, Plastic case)

4-way valve connector

CN701 (White)

Compressor ON output connector

CN704 (Blue)

Heater output connector

CN610 (Gray)

Lead wire

for grounding

P09 (Black)

Outside input connector

CN610 (Yellow)

Specific operation switch

SW801

SW804

Display select switch

SW800

SW803

Temp. sensor connector

TL CN604 (White)

TD CN603 (White)

TO CN602 (Yellow)

TE CN601 (White)

TS CN600 (White)

Power-ON, error display LED

D800 to 804 (Yellow)

D805 (Green)

PMV connector

CN710 (White)

Initial setting switch

SW802

Connector

for reactor

Conneector

for reactor

Indoor/Outdoor communication signal LED

D503 (Green, Outdoor → Indoor)

D502 (Orange, Indoor → Outdoor)

Inter-unit

cable connector

CN04 (White)

Inter-unit cable

Power supply

protective fuse

F03 (250V, 25A)

F01 (250V, 25A)

4-way valve protective fuse

F700 (250V, 3.15A, Plastic case)

Lead wire for connection of power supply

P01 (Red)

P02 (White)

– 60 –

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8-2. Outline of Main Controls

1. PMV (Pulse Motor Valve) control

1) PMV is controlled between 30 and 500 pulsed during operation.

2) In cooling operation, PMV is usually controlled with the temperature difference between TS sensor and

TC sensor aiming 1 to 4K as the target value.

3) In heating operation, PMV is usually controlled with the temperature difference between TS sensor and

TE sensor aiming –1 to 4K as the target value.

4) When the cycle excessively heated in both cooling and heating operation, PMV is controlled by TD

sensor. The target value is usually 91°C in cooling operation and 96°C in heating operation.

REQUIREMENT

A sensor trouble may cause a liquid back-flow or abnormal overheat resulting in excessive shortening of the

compressor life. In a case of trouble on the compressor, be sure to check there is no error in the resistance

value or the refrigerating cycle of each sensor after repair and then start the operation.

2. Discharge temperature release control

1) When the discharge temperature did not fall or the discharge temperature rapidly went up by PMV

control, this control lowers the operation frequency. It subdivides the frequency control up to 0.6Hz to

stabilize the cycle.

2) When the discharge temperature detected an abnormal stop zone, the compressor stops and then

restarts after 2 minutes 30 seconds.

The error counting is cleared when the operation continued for 10 minutes. If the error is detected by

4 times without clearing, the error is determined and restarting is not performed.

∗ The cause is considered as excessively little amount of refrigerant, PMV error or clogging of the cycle.

3) For displayed contents of error, confirm on the check code list.

TD [˚C]

Abnormal stop

111

Frequency normal down

109

Frequency slow down

106

Frequency hold

103

Frequency slow up

(Up to command)

As command is

– 61 –

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3. Outdoor fan control

Revolution frequency allocation of fan taps [rpm]

WB WC WD

200 240 240 260 320 380 480 500 530 610 640 660 720 780

200 280 360 400 500 520 550 630 660 700 740 820

SP110

SP140

Down

—

3-1) Cooling fan control

The outdoor fan is controlled by TL sensor, TO sensor and the operation frequency.

The outdoor fan is controlled by every 1 tap of DC fan control (14 taps).

Only for 60 seconds after the operation has started, the maximum fan tap corresponding to the

zone in the following table is fixed and then the fan is controlled by temperature of TL sensor.

‚

TL [˚C]

20 Hz

20Hz

45Hz

WE tap

or lower

to 45Hz

or higher

Temp. range

Min. Max. Min. Max. Min. Max.

38°C ≤ TO

29°C ≤ TO < 38°C W5

W7 WC∗ W9

+1 tap / 20 sec

Up to the maximum

revolution frequency of each zone

15°C ≤ TO < 29°C W4

5°C ≤ TO < 15°C

0°C ≤ TO < 5°C

–4°C ≤ TO < 0°C

TO < –4°C

Revolution frequency hold

–1 tap / 20 sec

Up to the minimum

revolution frequency of each zone

TO error

∗ : WB for SP110

3-2) Heating fan control

The outdoor fan is controlled by TE sensor, TO sensor and the operation frequency.

(Control from minimum W1 to maximum (according to the following table))

For 3 minutes after the operation has started, the maximum fan tap corresponding to the zone in

the following table is fixed and then the fan is controlled by temperature of TE sensor.

‚

When TE ≥ 24°C continues for 5 minutes, the

compressor stops.

TE [˚C]

–2 taps / 20 sec. (Up to W1)

Stop timer count

It is the same status as the normal thermostat-

OFF without error display. The compressor

restarts after approx. 2 minutes 30 seconds and

this intermittent operation is not abnormal.

–2 taps / 20 sec. (Up to W1)

–1 tap / 20 sec. (Up to W1)

Revolution frequency hold

In case that the status in item

frequently, stain on filter of the suction part of the

indoor unit is considered.

generates

„

Clean the filter and then restart the operation.

+1 tap / 20 sec

(Up to the maximum tap of each zone)

Object: SP140

Object: SP110

20 Hz

or lower

20Hz

to 45Hz

45Hz

or higher

20 Hz

or lower

20Hz

to 45Hz

45Hz

or higher

Temp. range

Max.

10°C ≤ TO

5°C ≤ TO < 10°C

–3°C ≤ TO < 5°C

–10°C ≤ TO < –3°C

TO < –10°C

10°C ≤ TO

5°C ≤ TO < 10°C

–3°C ≤ TO < 5°C

–10°C ≤ TO < –3°C

TO < –10°C

TO error

– 62 –

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4. Coil heating control

1) This control function heats the compressor by turning on the stopped compressor instead of a case

heater. It purposes to prevent stagnation of the refrigerant inside of the compressor.

2) As usual, turn on power of the compressor for the specified time before a test run after installation;

otherwise a trouble of the compressor may be caused.

As same as a test run, it is recommended to turn on power of the compressor beforehand when starting

operation after power of the compressor has been interrupted and left as it is for a long time.

3) A judgment for electricity is performed by TD and TO sensors.

If TO sensor is defective, a backup control is automatically performed by TE sensor.

For a case of defective TO sensor, judge it with outdoor LED display.

4) For every model, the power is turned off when TD is 30°C or more.

(Normal time)

(In defective TO sensor)

18˚C

20˚C

No power

15˚C

10˚C

8˚C

18˚C

12˚C

10˚C

Intermittent power-ON

10 minutes: ON /

5 minutes: OFF

Output

• Power-ON

condition

TD<30˚C

• Power-ON

condition

TD < 30˚C

10 minutes: ON /

5 minutes: OFF

Output

[40W or equivalent]

Continuous power-ON

Output

[40W or equivalent]

Continuous power-ON

Output

[40W or equivalent]

REQUIREMENT

While heating the coil, the power sound may be heard. However it is not a trouble.

5. Short intermittent operation preventive control

1) For 3 to 10 minutes after operation start, in some cases, the compressor does not stop to protect the

compressor even if receiving the thermostat-OFF signal from indoor. However it is not abnormal status.

(The operation continuance differs according to the operation status.)

2) When the operation stops by the remote controller, the operation does not continue.

6. Current release control

No. of revolutions of the compressor is controlled by AC current value detected by T620 on the outdoor P.C.

board so that the input current of the inverter does not exceed the specified value.

Current [A]

SP110 / SP140

Objective model

Frequency down

COOL

HEAT

I1 value [A]

20.0

Hold

I1–1.0

Normal operation

– 63 –

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Current release control value (I1)

7. Current release value shift control

[A]

1) This control purposes to prevent troubles of

the electronic parts such as the compressor

driving elements and the compressor during

cooling operation.

Temperature range

44°C ≤ To

SP110, SP140

15.0

17.7

20.0

15.0

39°C ≤ To < 44°C

To < 39°C

2) The current release control value (I1) is

selected from the following table according to

TO sensor value.

TO error

8. Over-current protective control

1) When the over-current protective circuit detected an abnormal current, stop the compressor.

2) The compressor restarts after 2 minutes 30 seconds setting [1] as an error count.

3) When the error count [8] was found, determine an error and restart operation is not performed.

4) For the error display contents, confirm on the check code list.

9. High-pressure release control

1) The operation frequency is controlled to restrain abnormal rising of high pressure by TL sensor in

cooling operation and TC sensor in heating operation.

2) When TL sensor in cooling operation or TC sensor in heating operation detects abnormal temperature of

the stop zone, stop the compressor and the error count becomes +1.

3) When the compressor stopped with 2), the operation restarts from the point of the normal operation

zone (e point or lower) where it returned after 2 minutes 30 seconds.

4) The error count when the compressor stopped with 2) is cleared after the operation continued for 10

minutes. If the error count becomes [10] without clearing, the error is determined and reactivation is not

performed.

5) For the error display contents, confirm on the check code list.

HEAT TC / COOL TL

HEAT

COOL

[˚C]

Abnormal stop

Frequency normal down

Frequency slow down

Frequency hold

62°C

57°C

55°C

53°C

49°C

63°C

62°C

60°C

58°C

54°C

Abnormal stop

Frequency slow up (Up to command)

As command is

– 64 –

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10. Defrost control

1) In heating operation, defrost operation is performed when TE sensor satisfies any condition in A zone to

D zone.

2) During defrosting operation, it finishes if TE sensor continued 12°C or higher for 3 seconds or continued

7°C ≤ TE < 12°C for 1 minute.

The defrost operation also finishes when it continued for 10 minutes even if TE sensor temperature was

7°C or lower.

3) After defrost operation was reset, the compressor stopped for approx. 40 seconds and then the heating

operation starts.

Start of heating operation

TE [˚C]

[min.]

39 45

–2

–5

–10

A zone

B zone

D zone

–23

C zone

∗

∗ The minimum TE value and To value between 10 and 15 minutes after heating operation has started

are stored in memory as TE0 and To0, respectively.

In normal To

In abnormal To

When status (TE0 – TE) – (To0 – To) ≥ 3°C

When status (TE0 – TE) ≥ 3°C

A zone

B zone

continued for 20 seconds

When status (TE0 – TE) – (To0 – To) ≥ 2°C

When status (TE0 – TE) ≥ 2°C

continued for 20 seconds

C zone

D zone

When status (TE ≤ –23°C) continued for 20 seconds

When compressor operation status of TE < –2°C is calculated by d portion

4) The time of above d can be changed by

exchanging jumper [J805] and [J806] of the

outdoor control P.C. board.

J805

J806

150 minutes

Setting at shipment

(Setting at shipment: 150 minutes)

90 minutes

60 minutes

30 minutes

: Short circuit,

: Open

– 65 –

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9. TROUBLESHOOTING

9-1. Summary ofTroubleshooting

1. Before troubleshooting

1) Required tools/instruments

–

•

and

screwdrivers, spanners, radio cutting pliers, nippers, push pins for reset switch

• Tester, thermometer, pressure gauge, etc.

2) Confirmation points before check

a) The following operations are normal.

1. Compressor does not operate.

• Is not 3-minutes delay (3 minutes after compressor OFF)?

• Is not the outdoor unit in standby status though the remote controller reached the setup tem-

perature?

• Does not timer operate during fan operation?

• Is not an overflow error detected on the indoor unit?

• Is not outside high-temperature operation controlled in heating operation?

2. Indoor fan does not rotate.

• Does not cool air discharge preventive control work in heating operation?

3. Outdoor fan does not rotate or air volume changes.

• Does not high-temperature release operation control work in heating operation?

• Does not outside low-temperature operation control work in cooling operation?

• Is not defrost operation performed?

4. ON/OFF operation cannot be performed from remote controller.

• Is not the control operation performed from outside/remote side?

• Is not automatic address being set up?

(When the power is turned on at the first time or when indoor unit address setting is changed, the

operation cannot be performed for maximum approx. 5 minutes after power-ON.)

• Is not being carried out a test run by operation of the outdoor controller?

b) Did you return the cabling to the initial positions?

c) Are connecting cables of indoor unit and remote controller correct?

2. Troubleshooting procedure

When a trouble occurred, check the parts along with the following procedure.

→

Trouble

Confirmation of check code display

Check defective position and parts.

NOTE :

For cause of a trouble, power conditions or malfunction/erroneous diagnosis of microcomputer due to outer

noise is considered except the items to be checked. If there is any noise source, change the cables of the

remote controller to shield cables.

– 66 –

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1. Before troubleshooting

1) Required tools/instruments

–

•

and

screwdrivers, spanners, radio cutting pliers, nippers, etc.

• Tester, thermometer, pressure gauge, etc.

2) Confirmation points before check

a) The following operations are normal.

1. Compressor does not operate.

• Is not 3-minutes delay (3 minutes after compressor OFF)?

• Is not the outdoor unit in standby status though the remote controller reached the setup tem-

perature?

• Does not timer operate during fan operation?

• Is not an overflow error detected on the indoor unit?

• Is not outside high-temperature operation controlled in heating operation?

2. Indoor fan does not rotate.

• Does not cool air discharge preventive control work in heating operation?

3) Outdoor fan does not rotate or air volume changes.

• Does not high-temperature release operation control work in heating operation?

• Does not outside low-temperature operation control work in cooling operation?

• Is not defrost operation performed?

4) ON/OFF operation cannot be performed from remote controller.

• Is not forced operation performed?

• Is not the control operation performed from outside/remote side?

• Is not automatic address being set up?

• Is not being carried out a test run by operation of the outdoor controller?

a) Did you return the cabling to the initial positions?

b) Are connecting cables between indoor unit and receiving unit correct?

2. Troubleshooting procedure

(When the power is turned on at the first time or when indoor unit address setting is changed, the operation

cannot be performed for maximum approx. 5 minutes after power-ON.)

When a trouble occurred, check the parts along with the following procedure.

Confirmation of lamp display

Check defective

→

(When 4-way air discharge cassette type

wireless remote controller is connected)

Trouble

position and parts.

1) Outline of judgment

The primary judgment to check where a trouble occurred in indoor unit or outdoor unit is performed with

the following method.

Method to judge the erroneous position by flashing indication on the display part of indoor unit

(sensors of the receiving unit)

The indoor unit monitors operating status of the air conditioner, and the blocked contents of self-diagnosis

are displayed restricted to the following cases if a protective circuit works.

– 67 –

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9-2. Troubleshooting

9-2-1. Outline of judgment

The primary judgment to check whether a trouble occurred in the indoor unit or outdoor unit is carried out with

the following method.

Method to judge the erroneous position by flashing indication on the display part of the indoor unit

(sensors of the receiving part)

The indoor unit monitors the operating status of the air conditioner, and the blocked contents of self-diagnosis

are displayed restricted to the following cases if a protective circuit works.

: Go off,

: Go on,

: Flash (0.5 sec.)

Lamp indication

Operation Timer Ready

Check code

Cause of trouble occurrence

—

Power supply OFF or miswiring between receiving unit and indoor unit

No indication at all

E01

E02

E03

E08

E09

E10











Receiving error

Sending error

 Receiving unit

Miswiring or wire connection error



between receiving unit and indoor unit

Communication stop

Operation Timer

Ready



Duplicated indoor unit No.

Setup error





Duplicated master units of remote controller

Flash

Communication error between CPUs on indoor unit P.C. board

Wire connection error between indoor units, Indoor power OFF

(Communication stop between indoor master and follower or between main

and sub indoor twin)

E18

Operation Timer

Ready

Miswiring between indoor unit and outdoor unit or connection erorr

(Communication stop between indoor and outdoor units)

E04

Flash

Ready

P10

P12



Overflow was detected.





Protective device of indoor unit worked.

Indoor DC fan error

Alternate flash

P03

P04

P05

P07

P15

P19

P20

P22

P26

P29



Outdoor unit discharge temp. error

Outdoor high pressure system error

Protective device of

outdoor unit worked.

∗1







Negative phase detection error

Heat sink overheat error

Gas leak detection error









Outdoor unit error

Operation Timer

Ready

4-way valve system error (Indoor or outdoor unit judged.)

Outdoor unit high pressure protection

Alternate flash











Outdoor unit: Outdoor unit error

Protective device of

outdoor unit worked.

Outdoor unit: Inverter Idc operation

Outdoor unit: Position detection error

∗1

Stopped because of error of other indoor unit in a group

(Check codes of E03/L03/L07/L08)

P31

∗1: These are representative examples and the check code differs according to the outdoor unit to be combined.

– 68 –

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Lamp indication

Operation Timer

Check code

F01

Cause of trouble occurrence

Ready

Heat exchanger sensor (TCJ) error











F02

Heat exchanger sensor (TC) error

Heat exchanger sensor (TA) error

Indoor unit sensor error

Alternate flash

P10

F04

Discharge temp. sensor (TD) error

Temp. sensor (TE) error

F06











Operation Timer

Alternate flash

Ready

F07

Temp. sensor (TL) error

F08

Temp. sensor (TO) error

Sensor error of outdoor unit

∗1

Temp. sensor (TS) error

F12

Temp. sensor (TH) error

F13

Temp. Sensor miswiring (TE, TS)

F15

Operation Timer

Ready

F29

F31

Indoor EEPROM error

Outdoor EEPROM error

Simultaneous flash

Operation Timer

Simultaneous flash

Operation Timer

Flash

H01

H02

H03

H04

H06

Compressor break down

Compressor lock











Ready

Current detection circuit error

Case thermostat worked.

Outdoor compressor system error ∗1

Outdoor unit low pressure system error

L03

L07

L08

L09





Duplicated master indoor units

There is indoor unit of group connection → AUTO address

in individual indoor unit.



Operation Timer

Ready





* If group construction and

address are not normal

when power supply turned on,

automatically goes to address

setup mode.

Unsetting of group address

Missed setting

(Unset indoor capacity)

Simultaneous flash

L10

L20

L29

L30

L31











Unset model type (Service board)

Duplicated indoor central addresses

Outdoor unit and other error

Outside interlock error

Operation Timer

Ready

Others

Simultaneous flash

Negative phase error

∗1: These are representative examples and the check code differs according to the outdoor unit to be combined.

– 69 –

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9-2-2. Others (Other than Check Code)

Lamp indication

Operation Timer Ready

Check code

Cause of trouble occurrence

—

During test run

Simultaneous flash

Operation Timer Ready

Disagreement of cool/heat

(Automatic cool/heat setting to automatic cool/heat prohibited model, or

setting of heating to cooling-only model)

—

Alternate flash

– 70 –

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9-2-3. Check Code List (Indoor)

: Go on,

ALT (Alternate): Alternate flashing when there are two flashing LED SIM (Simultaneous): Simultaneous flashing when there are two flashing LED

^{: Flash,}l ^{: Go off}

(Indoor unit detected)

Check code indication

Sensor lamp indication

Block indication

Operation Timer Ready Flash

Air conditioner operation

Representative defective position

Explanation of error contents

TCC-LINK central &

Automatic

Operation

Wired remote controller

reset

continuation

Regular communication error between indoor and

remote controller

No communication from remote controller and network adapter

(Also no communication from central control system)

E03

E04

E08

E10

Indoor/Outdoor serial error

Duplicated indoor addresses

There is error on serial communication between indoor and outdoor units

Same address as yours was detected.

Communication error between indoor MCU

Regular communication error between

indoor master and follower units

MCU communication error between main motor and micro computer

Regular communication between indoor master and follower units is impossible,

Communication between twin master (main) and follower (sub) units is impossible.

E18

F01

F02

F10

F29

L03

L07

L08

L09

L20

L30

P01

P10

P12

P19

P31

ALT

SIM

ALT

Indoor unit, Heat exchanger (TCJ) error

Indoor unit, Heat exchanger (TC) error

Indoor unit, Room temp. sensor (TA) error

Indoor unit, other indoor P.C. board error

Duplicated setting of indoor group master unit

There is group cable in individual indoor unit.

Unset indoor group address

Open/short was detected on heat exchanger (TCJ).

Open/short was detected on heat exchanger (TC).

Open/short was detected on room temp. sensor (TA).

EEPROM error (Other error may be detected. If no error, automatic address is repeated.

There are multiple master units in a group.

When even one group connection indoor unit exists in individual indoor unit.

Indoor group address is unset.

Unset indoor capacity

Capacity of indoor unit is unset.

Duplicated central control system address

Outside error input to indoor unit (Interlock)

Indoor unit, AC fan error

Duplicated setting of central control system address

Abnormal stop by outside error (CN80) input

An error of indoor AC fan was detected. (Fan motor thermal relay worked.)

Float switch worked.

Indoor unit, overflow detection

Indoor unit, DC fan error

4-way valve system error

Indoor DC fan error (Over-current/Lock, etc.) was detected.

In heating operation, an error was detected by temp. down of indoor heat exchanger sensor.

Follower unit in group cannot operate by warning from [E03/L03/L07/L08] of master unit.

Other indoor unit error

When this warning was detected before group construction/address check finish at power supply was turned on, the mode shifts automatically to AUTO address setup mode.

(Remote controller detected)

Check code indication

Sensor lamp indication

Block indication

Operation Timer Ready Flash

Air conditioner operation

Representative defective position

Explanation of error contents

Automatic

Operation

Wired remote controller

reset

continuation

No master remote controller, Remote controller

communication (Receive) error

Remote controller communication (Send) error

Signal cannot be received from indoor unit. Master remote controller was not set.

(including 2 remote controllers)

Signal cannot be sent to indoor unit.

E01

E02

E09

—

In 2-remote controller control, both were set as master. (Indoor master unit stops warning

and follower unit continues operation.)

Duplicated master remote controller

(Central control devices detected)

Check code indication

Sensor lamp indication

Air conditioner operation

Block indication

Operation Timer Ready Flash

Representative defective position

Explanation of error contents

Automatic

Operation

TCC-LINK central

reset

continuation

Signal sending operation of central control system is impossible.

There are multiple same central devices. (AI-NET)

Is not displayed.

(Common use of

C05

C06

C12

—

Central control system communication (send) error

Central control system communication (receive) error

General-purpose device control interface batched warning

remote controller, etc.)

Signal receiving operation of central control system is impossible.

An error on device connected to general-purpose device control interface of exclusive to

TCC-LINK/AI-NET

—

By warning unit

(Above-mentioned)

Group follower unit is defective.

(For remote controller, above-mentioned [∗∗∗] details are displayed with unit No.

P30

—

Group follower unit is defective.

NOTE: Even for the same contents of error such as communication error, the display of check code may differ according to detection device.

When remote controller or central controller detects an error, it is not necessarily related to operation of the air conditioner. In this list, the check codes that outdoor unit detects are not described.

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Check Code List (Outdoor)

: Go on,

ALT (Alternate): Alternate flashing when there are two flashing LED SIM (Simultaneous): Simultaneous flashing when there are two flashing LED

^{: Flash,}l ^{: Go off}

Sensor lamp part

Remote

Automatic

reset

Operation

controller

indication

Block indication

Operation Timer Ready Flash

ALT

Representative defective position

Detection

Explanation of error contents

Open/Short of discharge temp. sensor was detected.

continuation

F04

F06

Outdoor unit Discharge temp. sensor (TD) error

Outdoor unit Temp. sensor (TE, TS, TL) error

Outdoor

Open/Short of heat exchanger temp. sensor was detected.

Miswiring between TE sensor and TS sensor

Open/Short of outside temp. sensor was detected.

ALT

F08

F07

F12

F13

F15

F31

ALT

SIM

Outdoor unit Outside temp. sensor (TO) error

Outdoor unit Temp. sensor (TL) error

Outdoor unit Temp. sensor (TS) error

Outdoor unit Temp. sensor (TH) error

Outdoor unit Misconnection of temp. sensor (TE, TS)

Outdoor unit EEPROM error

Outdoor

Open/Short of heat exchanger temp. sensor was detected.

Open/Short of suction temp. sensor was detected.

Open/Short of heat sink temp. sensor (Board installed) was detected.

Misconnection of outdoor heat exchanger temp. sensor and suction temp. sensor was detected.

Outdoor P.C. board part (EEPROM) error was detected.

When reached min-Hz by current release control, short-circuited current (Idc) after

DC excitation was detected.

H01

Outdoor unit Compressor break down

H02

H03

H04

L10

Outdoor unit Compressor lock

Outdoor

Compressor lock was detected.

Outdoor unit Current detection circuit error

Outdoor unit Case thermostat operation

Outdoor unit Setting error of service P.C. board type

Current detection circuit error

Case thermostat operation was detected.

SIM

When outdoor service P.C. board was used, model type select jumper setting was inappropriate.

1) Defective parts on outdoor P.C. board (MCU communication, EEPROM, TH sensor error)

2) When outdoor service P.C. board was used, model type selection was inappropriate.

3) Other error (Heat sink abnormal overheat, gas leak, 4-way valve inverse error) was detected.

L29

Outdoor unit Other outdoor unit error

Outdoor unit Discharge temp. error

Outdoor

P03

P04

ALT

Outdoor

Error was detected by discharge temp. release control.

When case thermostat worked, error was detected by high release control from indoor/

outdoor heat exchanger temp. sensor. Power supply voltage error

Outdoor unit

High pressure system error, Power supply voltage error

P05

P07

P15

P20

P22

P26

P29

ALT

Power supply error

Outdoor unit Heat sink overheat

Gas leak detection

Outdoor unit High pressure system error

Outdoor unit Outdoor fan error

Outdoor unit Inverter Idc operation

Outdoor unit Position detection error

Outdoor

Remote

controller

Remote

controller

Power supply voltage error

Abnormal overheat was detected by outdoor heat sink temp. sensor.

Abnormal overheat of discharge temp. or suction temp. was detected.

Error was detected by high release control from indoor/outdoor heat exchanger temp. sensor.

Error (Over-current, lock, etc.) was detected on outdoor fan drive circuit.

Short-circuited protective operation of compressor drive circuit element (G-Tr /IGBT) worked.

Position detection error of compressor motor was detected.

No remote controller master unit

Remote controller communication error

Signal was not received from indoor unit.

Main remote controller was not set. (including 2 remote controllers)

E01

E02

E03

—

Remote controller send error

Signal cannot be sent to indoor unit.

—

Regular communication error between indoor and

remote controller

Indoor

No communication from remote controller and network adapter

E04

E08

Indoor/Outdoor serial error

Duplicated indoor addresses

Indoor

Serial communication error between indoor and outdoor

Same address as yours was detected.

Remote

controller

In 2-remote controller control, both were set as master.

(Indoor master unit stops warning and follower unit continues operation.)

E09

E10

E18

Duplicated main remote controllers

Communication error between CPU

Regular communication error between master and

follower indoor units

Indoor

MCU communication error between main motor and micro computer

Regular communication was impossible between master and follower indoor units.

Communication between twin master (Main unit) and follower (sub unit) was impossible.

There are multiple master units in a group.

When even one group connection indoor unit exists in individual indoor unit

Indoor address group was unset.

Indoor

L03

L07

L08

L09

L30

SIM

Duplicated indoor master units

Indoor

There is group cable in individual indoor unit.

Unset indoor group address

Unset indoor capacity

Outside error input to indoor unit (Interlock)

Capacity of indoor unit was unset.

Abnormal stop by CN80 outside error input

Indoor

Outdoor

P19

ALT

4-way valve inverse error

In heating operation, error was detected by temp. down of indoor heat exchanger or temp. up ofTE, TS.

When this warning was detected before group construction/address check finish at power supply was turned on, the mode shifts automatically to AUTO address setup mode.

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: Go on,

ALT (Alternate): Alternate flashing when there are two flashing LED SIM (Simultaneous): Simultaneous flashing when there are two flashing LED

^{: Flash,}l ^{: Go off}

Sensor lamp part

Block indication

Remote

controller

indication

Automatic

reset

Operation

Representative defective position

Detection

Explanation of error contents

Open/Short of heat exchanger (TCJ) was detected.

continuation

Operation Timer Ready Flash

ALT

F01

F02

F10

F29

P01

P10

P12

P31

Indoor unit Heat exchanger sensor (TCJ) error

Indoor unit Heat exchanger sensor (TC) error

Indoor unit Room temp. sensor (TA) error

Indoor unit Other indoor P.C. board error

Indoor unit Indoor fan error

Indoor

—

ALT

SIM

ALT

Open/Short of heat exchanger (TC) was detected.

Open/Short of room temp. (TA) was detected.

EEPROM error (Other error may be detected. If no error, automatic address is repeated.

Indoor AC fan error was detected. (Fan thermal relay worked.)

Float switch worked.

Indoor unit Overflow detection

Indoor unit Indoor fan error

Other indoor unit error

Indoor fan error (Over-current / Lock, etc.) was detected.

Other indoor under condition of warning in group. E03/L07/L03/L08 warning

Network

adapter

Sub remote controller error in a group

(Details of remote controller are displayed with unit No. Only central control side is displayed.)

—

By unit with warning No.

ALT

Error in indoor group

Network

adapter/

Center

Communication error of central control system signal

∗ Is not displayed on the remote controller

—

LAN system communication error

Network

adapter/

Center

L20

—

SIM

LAN system communication error

Duplicated indoor address of central control system communication

Network

adapter

—

There are multiple communication adapters.

There are multiple communication adapters on remote controller communication line.

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Error mode detected by indoor unit

Operation of diagnostic function

Judgment and measures

Check

code

Status of

air conditioner

Cause of operation

Condition

1. Check cables of remote controller and communication adapters.

• Remote controller LCD display OFF (Disconnection)

• Central remote controller [97] check code

No communication from remote

controller (including wireless) and

communication adapter

Stop

Displayed when

E03

(Automatic reset) error is detected

The serial signal is not output from

outdoor unit to indoor unit.

1. Outdoor unit does not completely operate.

• Inter-unit wire check, correction of miswiring

• Check outdoor P.C. board. Correct wiring of P.C. board.

• Miswiring of inter-unit wire

Stop

Displayed when

E04

• Defective serial sending circuit on

outdoor P.C. board

(Automatic reset) error is detected

2. When outdoor unit normally operates

Check P.C. board (Indoor receiving / Outdoor sending).

• Defective serial receiving circuit on

indoor P.C. board

E08

L03

Duplicated indoor unit address

Duplicated indoor master unit

1. Check whether remote controller connection (Group/Individual)

was changed or not after power supply turned on

(Finish of group construction/Address check).

Displayed when

error is detected

* If group construction and address are not normal when the

power has been turned on, the mode automatically shifts to

address setup mode. (Resetting of address)

Stop

There is group wire in individual indoor

unit.

L07

L08

L09

Unset indoor group address

Unset indoor capacity

Displayed when 1. Set indoor capacity (DN=11)

error is detected

Stop

Displayed when 1. Check outside devices.

L30

P10

Abnormal input of outside interlock

error is detected

2. Check indoor P.C. board.

1. Trouble of drain pump

Float switch operation

Displayed when 2. Clogging of drain pump

Stop

• Float circuit, Disconnection,

Coming-off, Float switch contact error

error is detected

3. Check float switch.

4. Check indoor P.C. board.

1. Position detection error

2. Over-current protective circuit of indoor fan driving unit operated.

Displayed when

error is detected

P12

P19

Indoor DC fan error

Stop

3. Indoor fan locked.

4. Check indoor P.C. board.

1. Check 4-way valve.

4-way valve system error

Displayed when 2. Check 2-way valve and check valve.

• After heating operation has started,

indoor heat exchangers temp. is

down.

(Automatic reset) error is detected

3. Check indoor heat exchanger (TC/TCJ).

4. Check indoor P.C. board.

Stop

1. Judge follower unit while master unit is [E03], [L03], [L07] or [L08].

2. Check indoor P.C. board.

Own unit stops while warning is output

to other indoor units.

Displayed when

(Follower unit)

error is detected

(Automatic reset)

P31

F01

F02

Coming-off, disconnection or short of

indoor heat exchanger temp. sensor

(TCJ)

1. Check indoor heat exchanger temp. sensor (TCJ).

2. Check indoor P.C. board.

Stop

Displayed when

(Automatic reset) error is detected

Coming-off, disconnection or short of

indoor heat exchanger temp. sensor

(TC)

1. Check indoor heat exchanger temp. sensor (TC).

2. Check indoor P.C. board.

Stop

Displayed when

(Automatic reset) error is detected

Coming-off, disconnection or short of

indoor heat exchanger temp. sensor

(TA)

1. Check indoor heat exchanger temp. sensor (TA).

2. Check indoor P.C. board.

Stop

Displayed when

F10

F29

(Automatic reset) error is detected

Indoor EEPROM error

Stop

Displayed when 1. Check indoor EEPROM. (including socket insertion)

(Automatic reset) error is detected

• EEPROM access error

2. Check indoor P.C. board.

Communication error between indoor

MCU

1. Check indoor P.C. board.

Stop

Displayed when

E10

E18

(Automatic reset) error is detected

• Communication error between fan

driving MCU and main MCU

1. Check remote controller wiring.

2. Check indoor power supply wiring.

3. Check indoor P.C. board.

Regular communication error between

indoor aster and follower units and

between main and sub units

Stop

Displayed when

(Automatic reset) error is detected

– 74 –

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Error mode detected by remote controller or central controller (TCC-LINK)

Operation of diagnostic function

Judgment and measures

Status of

air conditioner

Check code

Cause of operation

Condition

Power supply error of remote controller, Indoor

EEPROM error

1. Check remote controller inter-unit wiring.

2. Check remote controller.

No communication with master indoor unit

• Remote controller wiring is not correct.

• Power of indoor unit is not turned on.

• Automatic address cannot be completed.

Not displayed at all

(Operation on

remote controller

is impossible.)

3. Check indoor power wiring.

4. Check indoor P.C. board.

Stop

—

5. Check indoor EEPROM.

(including socket insertion)

→ Automatic address repeating phenom-

enon generates.

Receiving error from remote controller

1. Check remote controller inter-unit wiring.

2. Check remote controller.

No communication with master indoor unit

Stop

(Automatic reset)

E01

• Disconnection of inter-unit wire between

remote controller and master indoor unit

(Detected by remote controller side)

Displayed when

error is detected

∗ If center exists,

operation continues.

∗2

3. Check indoor power wiring.

4. Check indoor P.C. board.

Stop

Sending error of remote controller

(Automatic reset)

Signal send error to indoor unit

(Detected by remote controller side)

Displayed when 1. Check sending circuit inside of remote

E02

∗ If center exists,

operation continues.

error is detected

controller.

→ Replace remote controller.

1. In 2-remote controllers (including wireless),

there are multiple main units.

Stop

There are multiple main remote controllers.

(Detected by remote controller side)

Displayed when

error is detected

E09

L20

(Sub unit

Check that there are 1 main remote

controller and other sub remote controllers.

continues operation.)

1. Check setting of central control system

network address. (Network adapter SW01)

Duplicated indoor central addresses on

communication of central control system

(Detected by indoor/central controller side)

Stop

(Automatic reset)

Displayed when

error is detected

Central controller

L20

2. Check network adapter P.C. board.

—

1. Check communication wire / miswiring

2. Check communication (U3, U4 terminals)

3. Check network adapter P.C. board.

∗3

Communication circuit error of central

control system

(Detected by central controller side)

Continues

Displayed when

Central controller

(Send)

4. Check central controller (such as central

control remote controller, etc.)

(By remote controller) error is detected

C05

(Receive)

C06

5. Check terminal resistance. (TCC-LINK)

—

Continuation/Stop

Displayed when Check the check code of the corresponding

error is detected unit from remote controller.

Indoor Gr sub unit error

(Detected by central controller side)

(According

Central controller

P30

to each case)

∗2 The check code cannot be displayed by the wired remote controller.

(Usual operation of air conditioner becomes unavailable.)

For the wireless models, an error is notified with indication lamp.

∗3 This trouble is related to communication of remote controller (A, B), central system (TCC-LINK U3, U4), and

[E01], [E02], [E03], [E09] or [E18] is displayed or no check display on the remote controller according to the

contents.

– 75 –

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Error mode detected by outdoor unit

The check code has been ramified from 4 series and after.

The ramified check code is displayed only when both the indoor unit and the outdoor unit are 4 series and after.

(Ex. Combination of RAV-SM1404UT-E with RAV-SP1404AT-E)

When the indoor unit is 3 series and before, the conventional check code is displayed.

(Ex. Combination of RAV-SM1402BT-E and RAV-SP1404AT-E: Outdoor unit only is 4 series.)

Operation of diagnostic function

Check code

Judgment and measures

Status of

air conditioner

Indoor unit

Cause of operation

Condition

before

after

3 series 4 series

1. Check discharge temp. sensor (TD).

2. Check outdoor P.C. board.

Disconnection, short of discharge

temp. sensor (TD)

Displayed when

error is detected

F04

F06

F04

F06

F07

F12

F15

F08

Stop

1. Check temp. sensor (TE).

2. Check outdoor P.C. board.

Disconnection, short of outdoor temp.

sensor (TE)

Displayed when

error is detected

1. Check temp. sensor (TL).

2. Check outdoor P.C. board.

Disconnection, short of outdoor temp.

sensor (TL)

Displayed when

error is detected

Stop

1. Check suction temp. sensor (TS).

2. Check outdoor P.C. board.

Disconnection, short of suction temp.

sensor (TS)

Displayed when

error is detected

Stop

1. Check temp. sensor (TE, TS).

2. Check outdoor P.C. board.

Miss-mounting of outdoor temp.

sensor (TE, TS)

Displayed when

error is detected

Stop

1. Check outside temp. sensor (TO).

2. Check outdoor P.C. board.

Disconnection, short of outside temp.

sensor (TO)

Displayed when

error is detected

F08

L29

Continue

Disconnection, short of heat sink

temp. sensor (TH)

1. Check outdoor P.C. board.

Displayed when

error is detected

F13

F31

L10

L29

Stop

Displayed when 1. Check outdoor P.C. board.

error is detected

Outdoor P.C. EEPROM error

Displayed when 1. Outdoor service P.C. board

Unset jumper of service P.C. board

error is detected

Check model type setting jumper wire.

Communication error between

outdoor P.C. board MCU

Displayed when 1. Check outdoor P.C. board.

error is detected

Heat sink overheat error

1. Check screw tightening between PC. Board and heat

Displayed when

error is detected

Stop

sink and check radiator grease.

P07

P15

* Heat sink temp. sensor detected

over specified temperature.

2. Check heat sink blast path.

1. Check gas leak, recharge

Detection of gas leak

2. Check full open of service valve.

* Discharge temp. sensor (TD),

Suction temp. sensor (TS) detected

temperature over specified temp.

Displayed when 3. Check PMV (Pulse Motor Valve).

Stop

error is detected

4. Check broken pipe.

5. Check discharge temp. sensor (TD), suction temp.

sensor (TS).

4-way valve inverse error

1. Check operation of 4-way valve.

* After heating operation has started,

indoor heat exchanger temp. lowers

under the specified temp.

2. Check outdoor heat exchanger (TE), suction temp.

sensor (TS).

Displayed when

P19

H01

Stop

error is detected 3. Check indoor heat exchanger sensor (TC).

4. Check 4-way valve coil.

* After heating operation has started,

outdoor heat exchanger / suction

temp. rises over the specified temp.

5. Check PMV (Pulse Motor Valve).

Compressor break down

1. Check power supply voltage. (AC198 to 264V)

* Although operation has started,

operation frequency decreases and

operation stops.

Displayed when

error is detected

2. Overload operation of refrigerating cycle

H01

Compressor lock

1. Trouble of compressor (Lock, etc.): Replace compressor.

2. Wiring error of compressor (Open phase)

Displayed when

error is detected

H02

H03

H02

H03

* Over-current detection after

compressor start-up

Stop

Displayed when

error is detected

1. Check outdoor P.C. board. (AC current detection circuit)

Current detection circuit error

– 76 –

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Operation of diagnostic function

Cause of operation

Check code

Indoor unit

Judgment and measures

Status of

air conditioner

Condition

before

after

3 series 4 series

1. Check refrigerating cycle (Gas leak)

2. Trouble of electronic expansion valve

3. Check discharge temp. sensor (TD).

Discharge temp. error

Displayed when

error is detected

P03

P04

P03

Stop

∗ Discharge temp. (TD) over specified

value was detected.

1. Check case thermostat and connector.

2. Check gas leak, recharge

Case thermostat operation

Displayed when

error is detected

H04

P05

Stop

3. Check full open of service valve.

4. Check PMV (Pulse Motor Valve).

5. Check broken pipe.

∗ Abnormal overheat of compressor

Displayed when

error is detected

1. Check power supply voltage. AC198 to 264V

Power supply voltage error

1. Check outdoor heat exchanger sensor (TL).

2. Check indoor heat exchanger sensor (TC, TCJ).

3. Check full open of service valve.

High pressure protective operation

• During cooling operation, outdoor

temp. sensor (TL) detected

temperature over specified temp.

P20

P22

Stop

Displayed when

error is detected

4. Check indoor/outdoor fan.

5. Check PMV (Pulse Motor Valve).

• During heating operation, indoor

temp. sensor (TC, TCJ) detected

temperature over specified temp.

6. Check clogging and short circuit of indoor/outdoor heat

exchanger.

7. Overcharge of refrigerant. Recharge

1. Check lock of fan motor.

Displayed when

error is detected

P22

Outdoor fan system error

2. Check power supply voltage. AC198 to 264V

3. Check outdoor P.C. board.

Stop

1. When performing operation while taking-off compressor

wire, P26 error occurs. Check control P.C. board.

Short-circuit error of compressor

driving element

Displayed when

error is detected

P26

P29

P26

P29

2. When performing operation while taking-off compressor

wire, an error does not occur. (Compressor rare short)

Displayed when 1. Check control P.C. board.

error is detected

Position detection circuit error

– 77 –

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9-2-4. Diagnostic Procedure for Each Check Code (Indoor Unit)

Check code

[E01 error]

Correct inter-unit cable

of remote controller

Is inter-unit cable of A and B normal?

YES

Is there no disconnection or

contact error of connector on harness

from terminal block of indoor unit?

YES

Correct connection of connector.

Check circuit wiring.

Is group control operation?

YES

Check power connection of indoor unit.

(Turn on power again.)

Is power of all indoor units turned on?

YES

Check indoor P.C. board (MCC-1570).

Is power supplied to remote controller?

AB terminal: Approx. DC18V

Defect → Replace

YES

Are 2 remote controllers set

without master unit?

Correct a master unit/a follower unit.

(Remote controller address connector)

Check remote controller P.C. board.

Defect → Replace

[E09 error]

YES

Are 2 master units set in

2 remote controllers?

Correct as a master unit

and a follower unit.

Check remote controller P.C. board.

Defect → Replace

– 78 –

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[E04 error]

Is group address setup of

remote controller correct?

Does outdoor operate?

Check Item code [14].

YES

Are wiring in indoor unit and

1, 2, 3 inter-unit cables correct?

Correct wiring and

inter-unit cables.

YES

Correct wiring of connector

and terminal blocks.

Are wirings of terminal blocks

(1, 2, 3) wired to CN04 normal?

YES

Check indoor P.C. board.

Does D502 (Orange LED) flash

after power supply turned on again?

Defect → Replace

YES

Check outdoor P.C. board.

Check indoor P.C. board.

Defect → Replace

[E10 error]

YES

Check power supply voltage.

Correct lines.

Check and eliminate noise, etc.

Is there no disorder of power supply?

Check indoor control P.C. board

(MCC-1570).

Defect → Replace

– 79 –

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[E18 error]

Correct inter-unit cable

of remote controller.

Is inter-unit cable

of A and B normal?

YES

Is there no disconnection

or contact error of connector

on harness from terminal block

of indoor unit?

YES

Correct connection of connector.

Check circuit wiring.

Is group control operation?

YES

Check power

connection status of indoor unit

(Connect again).

Is power of all indoor units turned on?

YES

Is Twin control?

YES

Is there no contact error

of indoor/outdoor inter-unit cable

(Signal line) of the main unit?

YES

Correct indoor/outdoor inter-unit cable

(Serial signal line).

Check indoor P.C. board

(MCC-1570).

Defect → Replace

[E08, L03, L07, L08 error]

E08: Duplicated indoor unit No.

L03: There are 2 or more master units in a group control.

L07: There is 1 or more group address [Individual] in a group control.

L08: The indoor group address is unset. (12. ADDRESS SETUP)

If the above error is detected when power supply turned on, the mode enters automatically in the automatic

address set mode. (Check code is not output.)

However, if the above error is detected during the automatic address set mode, a check code may be

output.

[L09 error]

YES

Set capacity data of indoor unit.

(Setup item code (DN)=11)

Is not yet capacity setting

of indoor unit set up?

Check indoor P.C. board (MCC-1570).

Defect → Replace

– 80 –

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[L20 error]

Are wiring connections

to communication lines

U3 and U4 normal?

Correct wiring connection.

YES

Is not the multiple same central

control system addresses connected?

Correct central control system address.

Check central controller

(including network adapter) and

indoor P.C. board (MCC-1570).

Defect → Replace

[L30 error]

Are outside devices of

Check indoor P.C. board (MCC-1570).

connector CN80 connected?

Defect → Replace

YES

Check outside devices.

Defect → Replace

Do outside devices normally work?

YES

Check cause of operation.

[P30 error] (Central controller)

Is group operation carried out?

YES

Is there check code

on sub remote controller in main

and sub remote controllers?

YES

Check indoor P.C. board (MCC-1570).

Check corresponding

indoor unit/outdoor unit.

Defect → Replace

– 81 –

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[P10 error]

Is connection of

float switch connector

(Indoor control board CN34)

normal?

Correct connection

of connector.

YES

Does float switch work?

YES

Is circuit wiring normal?

Check and correct wiring

and wire circuit.

Does drain pump work?

YES

Are connector pins 1 and 2

at drain pump unit side shorted

(Resistance value 0)?

Is power of

drain pump turned on? ∗

YES

Replace drain pump

and indoor P.C. board

(MCC-1570).

Check the drain pipe, etc.

Check indoor P.C. board

(MCC-1570).

Replace drain pump.

Check wiring.

Defect → Replace

∗ Check that voltage of 1-2 pin of CN504 on the indoor P.C. board is +12V. (1 pin is plus (+).)

[F10 error]

Is connection of TA sensor connector

Correct connection of connector.

Replace TA sensor.

(CN104 on indoor P.C. board) correct?

YES

Are characteristics of

TA sensor resistance value normal?

YES

∗ Refer to Characteristics-1.

Check indoor P.C. board (MCC-1570).

Defect → Replace

– 82 –

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[P12 error]

Turn off the power.

Is there no connection error or

disconnection on connectors CN333

and CN334 of indoor unit P.C. board

(MCC-1570)?

YES

Correct connection

of connector.

CN333

Remove connectors CN333

and CN334 of indoor unit P.C. board

(MCC-1570).

CN334

Does the fan rotate without trouble

when handling the fan with hands?

Replace indoor fan motor.

YES

Are resistance values

between phases at fan motor connector

CN333 motor side of indoor P.C. board

(MCC-1570) correct? ∗1

Incorrect

Replace indoor fan motor.

Correct

∗1

• Are not coil windings between

(Red lead) and

(Black lead),

(Red lead) opened or shorted?

(White lead),

between

(White lead) and

(Black lead) and

→ The resistance should be the resistance value below.

SM56, SM80 → Approx. 70 to 100Ω

SM110, SM140 → Approx. 27 to 40Ω

• Is not grounded between cabinet and

. → It should be 10MΩ or more.

c e g

Is resistance value of

Incorrect

fan motor connector CN334 motor side

of indoor P.C. board

Replace indoor fan motor.

(MCC-1570) correct? ∗2

Correct

∗2

Resistance value confirmation of the fan motor position detection circuit

Is not status between

→ The resistance should be approx. 5k to 20kΩ.

(Yellow lead) and

(Pink lead) opened or shorted?

Is output of

Replace indoor fan motor.

indoor fan motor position

detection signal correct? ∗3

YES

∗3

Confirmation of the fan motor position detection signal

• Using a voltage tester, measure voltage between CN334

and

on the indoor P.C. board

(MCC-1570) under condition that CN333 and CN334 are mounted and the power supply is turned on.

→ When rotating the fan slowly with hands, the pin voltage should shake between 0 and 5V.

• Between

and : 5V

Check indoor P.C. board

(MCC-1570).

Defect → Replace

– 83 –

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[F02 error]

Is connection of TC sensor connector

Correct connection of connector.

Replace TC sensor.

(CN101 on Indoor P.C. board) correct?

YES

Are characteristics of

TC sensor resistance value normal?

YES

∗ Refer to Characteristics-2.

Check indoor P.C. board (MCC-1570).

Defect → Replace

[F01 error]

Is connection of TCJ sensor connector

(CN102 on Indoor P.C. board) correct?

Correct connection of connector.

Replace TCJ sensor.

YES

Are characteristics of

TCJ sensor resistance value normal?

YES

∗ Refer to Characteristics-2.

Check indoor main P.C. board (MCC-1570).

Defect → Replace

– 84 –

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[C06 error] (TCC-LINK central controller)

Are U3 and U4 communication lines normal?

YES

Correct communication line.

∗1

Correct connection of connector.

Is connection of connector normal?

YES

∗1

TCC-LINK central:

CN51 of TCC-LINK adapter P.C. board (MCC-1440) and CN050 of indoor P.C. board

Check connection of A and B terminal blocks.

Correct communication line of remote controller.

Are A and B communication lines normal?

YES

Is there no connection error of power supply cable?

Correct power wiring.

Is not the source power supply turned on?

YES

Turn on the source power supply.

YES

Did a power failure occur?

YES

Is the network address changed

from the remote controller?

Clear the check code.

Eliminate noise, etc.

Is there no noise source?

Uncontrolled

(Same to others)

Can the other indoor units

be normally controlled from the central controller?

Or is the operation status of indoor unit reflected?

Check central controller.

Defect → Replace

YES

Uncontrolled

Can the indoor unit be normally controlled

from the remote controller?

Check indoor P.C. board (MCC-1570).

Defect → Replace

YES

Check power supply transformer on

TCC-LINK adapter P.C. board (MCC-1440).

Defect → Replace

– 85 –

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[E03 error] (Master indoor unit)

[E03 error] is detected when the indoor unit cannot receive a signal from the remote controller

(also central controller).

Check A and B remote controllers and communication lines of the central control system U3 and U4.

As communication is impossible, this check code [E03] is not displayed on the remote controller and the central

controller. [E01] is displayed on the remote controller and [C06 error] is displayed on the central controller.

If these check codes generate during operation, the air conditioner stops.

[F29 error]

This check code indicates a detection error of IC10 non-volatile memory (EEPROM) on the indoor unit P.C.

board, which generated during operation of the air conditioner. Replace the service P.C. board.

∗ When EEPROM was not inserted when power supply turned on or when the EEPROM data read/write

operation is impossible at all, the automatic address mode is repeated. In this time, [97 error] is displayed

on the central controller.

(Approx.

3 minutes)

(Approx.

1 minute)

LED (D02) on indoor unit

P.C. board flashes with

1Hz for approx. 10 seconds.

[SET] is displayed

on remote controller.

[SET]

goes off.

Reboot

(Reset)

(Power ON)

(Repetition)

[P31 error] (Follower indoor unit)

When the master unit of a group operation detected [E03], [L03], [L07] or [L08] error, the follower unit of the

group operation detects [P31 error] and then the unit stops.

There is no display of the check code or alarm history of the remote controller. (In this model, the mode enters

in automatic address set mode when the master unit detected [L03], [L07] or [L08] error.)

– 86 –

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9-2-5. Diagnostic Procedure for Each Check Code (Outdoor Unit)

1) This section describes the diagnostic method for each check code displayed on the remote controller.

2) In some cases, a check code indicates multiple symptoms.

In this case, confirm LED display on the outdoor P.C. board to narrow the contents to be confirmed.

3) The check code on the remote controller is displayed only when the same error occurred continuously by

multiple times while LED of the outdoor P.C. board displays even an error which occurred once.

Therefore the display on the remote controller may differ from that of LED.

LED display on outdoor P.C. board

Dip switch setup

Only 1) of SW803 is ON.

• When turning on 1) only of SW803, the latest error

is displayed. As the memory is stored, it can be

confirmed even if the power supply is turned off

once. (excluding outside temp. sensor (TO) error)

• When the work finished or the outdoor temp.

sensor (TO) error was found, turn off all of SW803.

(The error which occurs at present is displayed.)

<Error display, which occurs at present)

All SW803 are OFF. (Initial status)

Display selection

• When even a LED of D800 to D804 (Yellow)

(Error occurred) (Push SW800)

(No error)

goes on, error occurrence is indicated. <Display 1>

D800 (Yellow)

D801 (Yellow)

D802 (Yellow)

D803 (Yellow)

D804 (Yellow)

D805 (Green)

• If pushing the button switch SW800 for 1 second

under the above condition, the yellow LED is

displayed with flashing. <Display 2>

• When pushing SW800 for 1 second again, the

status returns to <Display 1>.

(Example of discharge temp. sensor error)

: Go off, : Go on, : Flash

• The error contents can be confirmed by combining

<Display 1> and <Display 2>.

Check

code

Outdoor

LED display

Check and troubleshooting

(Item without special mention Indicates part of outdoor unit.)

[E04]

—

[Indoor/Outdoor communication error]

Is setting of group address

of remote controller correct?

Check Item code [14].

YES

Are inner wiring and

inter-unit cables (1, 2, 3) normal?

Correct wiring

and inter-unit cable.

YES

Are CN04 connection and

Correct wiring of connectors

and terminal blocks.

wiring of terminal blocks (1, 2, 3) normal?

YES

Does D502 (Orange LED) flash after

power supply is turned on again?

Check indoor P.C. board.

Defect → Replace

YES

Check outdoor P.C. board.

Defect → Replace

– 87 –

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Check

code

Outdoor

LED display

Check and troubleshooting

(Item without special mention Indicates part of outdoor unit.)

[F04]

<Display 1> <Display 2> [Discharge temp. sensor (TD) error]

Correct connector.

Is CN603 connection normal?

Sensor error → Replace

Is resistance value of TD sensor normal?

YES

Check outdoor P.C. board.

Defect → Replace

[F06]

• There is a possibility that it is one of the following errors.

Confirm LED on outdoor P.C. board to judge which error it is.

Heat exchanger temp. sensor (TE) error, Heat exchanger temp. sensor (TL) error,

Suction temp. sensor (TS) error, Miswiring of heat exchanger sensor (TE, TS)

<Display 1> <Display 2> Heat exchanger temp. sensor (TE) error]

Correct connector.

Is CN601 connection normal?

Sensor error → Replace

Is resistance value of TE sensor normal?

YES

Check outdoor P.C. board.

Defect → Replace

<Display 1> <Display 2> [Heat exchanger temp. sensor (TL) error] → Refer to [F07] column.

<Display 1> <Display 2> [Suction temp. sensor (TS) error] → Refer to [F12] column.

<Display 1> <Display 2> [Miswiring of heat exchanger sensor (TE,TS)] → Refer to [F15] column.

[F07]

<Display 1> <Display 2> [Heat exchanger temp. sensor (TL) error]

Correct connector.

Is CN604 connection normal?

Sensor error → Replace

Is resistance value of TL sensor normal?

YES

Check outdoor P.C. board.

Defect → Replace

– 88 –

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Check

code

Outdoor

LED display

Check and troubleshooting

(Item without special mention Indicates part of outdoor unit.)

[F08]

<Display 1> <Display 2> [Outside air temp. sensor (TO) error]

Correct connector.

Sensor error → Replace

Is CN602 connection normal?

Is resistance value of TO sensor normal?

YES

Check outdoor P.C. board.

Defect → Replace

[F12]

<Display 1> <Display 2> [Suction temp. sensor (TS) error]

Correct connector.

Sensor error → Replace

Is CN600 connection normal?

Is resistance value of TS sensor normal?

YES

Check outdoor P.C. board.

Defect → Replace

[F13] <Display 1> <Display 2> [Heat sink temp. sensor (TH) error]

Check outdoor P.C. board.

Defect → Replac

[F15] <Display 1> <Display 2> [Miswiring of heat exchanger sensor (TE,TS)]

Is mounting status of

Correct sensor mounting.

TE and TS sensors normal?

YES

Correct connector.

Sensor error → Replace

Is CN600 connection normal?

Is resistance value of TS sensor normal?

YES

Is CN601 connection normal?

Is resistance value of TE sensor normal?

Correct connector.

Sensor error → Replace

YES

Check outdoor P.C. board.

Defect → Replace

[F31] <Display 1> <Display 2> [EEPROM error]

Check outdoor P.C. board.

Defect → Replace

– 89 –

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Check

code

Outdoor

LED display

Check and troubleshooting

(Item without special mention Indicates part of outdoor unit.)

[H01]

<Display 1> <Display 2> [Compressor break down]

Is power supply voltage normal?

AC198 to 264V

Correct power supply line.

YES

Is wire connection normal?

Compressor lead

(Board side, Compressor side),

Reactor lead, Power supply lead

Check wire connection

and correct it.

YES

Is it not abnormal overload?

Correct and clear the cause.

Check outdoor P.C. board.

Defect → Replace

[H02]

<Display 1> <Display 2> [Compressor lock]

Is power supply voltage normal?

AC198 to 264V

Correct power supply line.

YES

Is wire connection normal?

Compressor lead

(Board side, Compressor side),

Reactor lead, Power supply lead

Check wire connection

and correct it.

YES

Check outdoor P.C. board.

Is compressor normal?

Defect → Replace

Is there no refrigerant stagnation?

YES

Compressor lock → Replace

Check TE, TS sensors and PMV.

Does PMV normally operate?

YES

Defect → Replace

Check outdoor P.C. board.

Defect → Replace

[H03]

<Display 1> <Display 2> [Current detection circuit error]

Check outdoor P.C. board.

Defect → Replace

– 90 –

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Check

code

Outdoor

LED display

Check and troubleshooting

(Item without special mention Indicates part of outdoor unit.)

[H04]

<Display 1> <Display 2> [Case thermostat operation]

Are CN609 connection

Correct connector.

and case thermostat normal?

Case thermostat error → Replace

YES

Is cooling/heating operation

available when short-circuiting

case thermostat?

Check outdoor P.C. board.

Defect → Replace

YES

Repair defectives position.

Recharge refrigerant.

Is there no gas leak?

Is it not refrigerant shortage?

YES

Is valve fully opened?

YES

Open valve fully.

Correct defective position.

Replace defective part.

Is PMV normal?

YES

Check crushed or broken pipe.

Defect → Correct and Replace

[L10]

<Display 1> <Display 2> [Unset model type]: Only when service P.C. board is used

Cut jumper line according

to the explanation sheet packaged

with the service P.C. board.

– 91 –

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Check

code

Outdoor

LED display

Check and troubleshooting

(Item without special mention Indicates part of outdoor unit.)

[L29]

∗ There is a possibility that it is one of the following errors.

Confirm LED on outdoor P.C. board to judge which error it is.

Communication error between MCU, Heat sing temp. sensor (TH) error,

EEPROM error, Unset model type, Heat sink overheat error, Gas leak detection,

4-way valve inverse error

<Display 1> <Display 2> [Communication error between MCU]

Check outdoor P.C. board.

Defect → Replace

<Display 1> <Display 2> [Heat sink temp. sensor (TH) error] → Refer to [F13] column.

<Display 1> <Display 2> [EEPROM error] → Refer to [F31] column.

<Display 1> <Display 2> [Unset model type] → Refer to [L10] column.

<Display 1> <Display 2> [Heat sink overheat error] → Refer to [P07] column.

<Display 1> <Display 2> [Gas leak detection] → Refer to [P15] column.

<Display 1> <Display 2> [4-way valve inverse error] → Refer to [P19] column.

– 92 –

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Check

code

Outdoor

LED display

Check and troubleshooting

(Item without special mention Indicates part of outdoor unit.)

[P03]

<Display 1> <Display 2> [Discharge temp. error]

Repair defective position.

Recharge refrigerant.

Is there no gas leak?

Is refrigerant charge amount adequate?

YES

Repair defective position.

Replace defective part.

Is PMV normal?

YES

Correct and clear the cause.

Is it not abnormal overload?

Correct connector.

Sensor error → Replace

Is CN603 connection normal?

Is resistance value of TD sensor normal?

YES

Check outdoor P.C. board.

Defect → Replace

[P04]

∗ There is a possibility that it is one of the following errors.

Confirm LED on outdoor P.C. board to judge which error it is.

Power supply error (Vdc), High pressure protective operation, Case thermostat

operation

<Display 1> <Display 2> [Case thermostat operation] → Refer to [H04] column.

<Display 1> <Display 2> [Power supply error (Vdc)] → Refer to [P05] column.

<Display 1> <Display 2> [High pressure protective operation] → Refer to [P20] column.

[P05]

[Power supply error (Voltage error)]

Is there no down or up

of power supply voltage?

(AC198 to 264V)

YES

Confirm electric construction, etc.

Check outdoor P.C. board.

Defect → Replace

– 93 –

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Check

code

Outdoor

LED display

Check and troubleshooting

(Item without special mention Indicates part of outdoor unit.)

[P07]

<Display 1> <Display 2> [Heat sink overheat error]

Is there no loosening of

screws of motor drive element of

outdoor P.C. board Q200, Q300, Q400

and rectifier DB01, DB02, DB03?

Did not forget to apply

YES

radiation grease to rear side of

Q200, DB01, DB02 or DB03?

Apply radiation grease to objective part.

Retightening of screws.

(Be sure not to forget to attach insulating sheet

between heat sink and Q300, Q400.)

Is not the ventilation flue

of the heat sink blocked?

Is not the fan blocked?

(Short-circuit, etc.)

Remove blocking matter.

Correct short-circuit.

YES

Check outdoor P.C. board.

Defect → Replace

[P15]

<Display 1> <Display 2> [Gas leak detection]

Is there no gas leak?

Repair defective position.

Is refrigerant charge amount adequate?

Recharge refrigerant.

YES

Correct defective position.

Replace defective part.

Is PMV normal?

YES

Open valve fully.

Is valve fully opened?

YES

Correct and replace piping.

Is there no crushed pipe?

Check temp. sensor.

TD sensor CN603

TS sensor CN600

Error

Correct connector.

Sensor error → Replace

Check outdoor P.C. board.

Defect → Replace

– 94 –

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Check

code

Outdoor

LED display

Check and troubleshooting

(Item without special mention Indicates part of outdoor unit.)

[P19]

<Display 1> <Display 2> [4-way valve inverse error]

Temperature sensor check

TE sensor CN601

Is operation of

YES

4-way valve normal?

TS sensor CN600

(Check pipe temp., etc. in

cooling/heating operation.)

Indoor TC sensor

Defect → Correct and repair

Is the coil

resistance value of 4-way valve

between 1.3 and 1.6kΩ?

Replace coil of 4-way valve.

YES

Check operation of

outdoor P.C. board.

(See below.)

Error

Check outdoor P.C. board.

Defect → replace

Check 4-way valve.

Defect → Replace

Check method of outdoor P.C. board operation (Self-hold valve type)

1) Set SW804 of Dip switch as the following figure and then push SW801 for

approx. 1 second to check exchange operation to cooling cycle/heating cycle.

• Power is turned on for approx. 10 seconds.

• When checking again, check operation 1 minute or more after the first check

because exothermic of part (Coil, resistance R700) is large.

(There is no problem when coil is not connected.)

2) After check, turn off all the Dip switch SW804.

Exchange to cooling cycle

Exchange to heating cycle

SW804 SW801 CN701

Push

DC200V or more

Note) Check by tester

Analog tester : Good if over DC200V

Digital tester : Good if Max. value is over DC200V though the varied

value may be displayed.

– 95 –

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Check

code

Outdoor

LED display

Check and troubleshooting

(Item without special mention Indicates part of outdoor unit.)

[P20]

<Display 1> <Display 2> [High pressure protective operation]

Is valve fully opened?

YES

Open valve fully.

Reset the power supply

and then perform test run

matching to the season.

Cooling season

Cooling operation

Heating season

Heating operation

Is there no problem

on outdoor TL sensor?

(Measurement of resistance value)

YES

Replace sensor.

Is there no crack or

loosening of outdoor fan?

YES

Check outdoor fan.

Defect → Replace, retightening

Does not the outdoor fan

perform abnormal operation?

YES

Check the same items as

[P22] error.

Is there no element

which interfere heat exchange

of outdoor unit?

YES

• Clogging of heat exchanger

• Short circuit

Eliminate interfering element.

Check overcharge of refrigerant, clogging of cycle,

broken pipe, abnormal overload, etc.

Defect → Correct defective position.

Does indoor fan

normally operate?

Are indoor fan motor

and connector normal?

YES

Repair defective position.

Are resistance values

of indoor TC and TCJ

sensors normal?

Replace

sensor.

YES

Check indoor P.C. board.

Defect → Replace

Is there no element which

interfere heat exchange of indoor unit?

• Clogging of filter

YES

• Clogging of heat exchanger

• Short circuit

Eliminate interfering element.

Check overcharge of refrigerant, clogging of cycle,

broken pipe, abnormal overload, etc.

Defect → Correct defective position.

– 96 –

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Check

code

Outdoor

LED display

Check and troubleshooting

(Item without special mention Indicates part of outdoor unit.)

[P22]

<Display 1> <Display 2> [Fan system error]

Is there no problem on power supply voltage?

(198 to 264V)

Check wiring construction.

Ask repair of power supply.

YES

Does the fan rotate without trouble when rotating

shaft of fan motor with hands during power-OFF?

Is there no problem on coil resistance of fan motor?

Between red and white lead wire : 12 to 20Ω

Between white and black lead wire : 12 to 20Ω

Between black and red lead wire : 12 to 20Ω

YES

Check outdoor P.C. board.

Replace fan motor.

Defect → Replace

Single operation check for outdoor fan

1) Set SW804 of Dip switch as the following figure and then push SW801 for

approx. 1 second to check single operation of outdoor fan. Use this method to

check which fan, upper or lower fan, has a trouble.

• When pushing SW801 for 1 second

again or 2 minutes passed, the fan stops.

Outdoor fan single operation

2) After check, turn off all Dip switch

SW804.

SW804

SW801

Push

[P26]

[Short-circuit of compressor drive element]

Is there no problem on connection

of compressor lead or reactor?

(Check referring to Wiring diagram.)

Correct wiring.

YES

The same error does not occur in

operation without compressor lead.

Replace outdoor P.C. board.

YES

Check compressor. (Rear short, etc.)

Defect → Replace

[P29]

[Position detection circuit error]

Check outdoor P.C. board.

Defect → Replace

—

No code

[Other error] Compressor disorder due to sudden change of load, etc.

∗ Although the display of outdoor LED outputs, the unit automatically restarts

and error is not determined.

∗ LED display also may output due to negative phase of compressor or wire

coming-off.

– 97 –

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Temperature sensor

Temperature – Resistance value characteristic table

TD,TL sensors

Representative value

TA,TC,TCJ,TE,TS,TO sensors

Representative value

Resistance value (kW)

Temperature

(°C)

(Minimum value) (Standard value) (Maximum value)

100

32.33

19.63

12.23

9.75

33.80

20.35

12.59

10.00

7.990

5.192

3.451

2.343

1.623

1.146

0.8237

0.6023

35.30

21.09

12.95

10.25

8.218

5.375

3.594

2.454

1.709

1.213

0.8761

0.6434

100

150.5

92.76

58.61

47.01

37.93

25.12

17.00

11.74

8.269

5.925

4.321

3.205

161.3

99.05

62.36

49.93

40.22

26.55

17.92

12.34

8.668

6.195

4.507

3.336

172.7

105.6

66.26

52.97

42.59

28.03

18.86

12.95

9.074

6.470

4.696

3.468

7.764

5.013

3.312

2.236

1.540

1.082

0.7740

0.5634

TA,TC,TCJ,TE,TS,TO sensors

90 100

Temperature (˚C)

TD,TL sensors

200

150

100

90 100

Temperature (˚C)

∗ As TH sensor (Outdoor unit heat sink temp. sensor) is incorporated in the outdoor control P.C. board, the resistance

value cannot be measured.

– 98 –

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10. REPLACEMENT OF SERVICE P.C. BOARD

10-1. Indoort Unit

<Note: when replacing the P.C. board for indoor unit servicing>

The nonvolatile memory (hereafter called EEPROM, IC503) on the indoor unit P.C. board before replacement

includes the model specific type information and capacity codes as the factory-set value and the important

setting data which have been automatically or manually set when the indoor unit is installed, such as system/

indoor/group addresses, high ceiling select setting, etc.

When replacing the P.C. board for indoor unit servicing, follow the procedures below.

After replacement completes, confirm whether the settings are correct by checking the indoor unit No., Group

header unit/follower unit settings and perform the cooling cycle confirmation through the trial operation.

CASE 1

Before replacement, the indoor unit can be turned on and the setting data can be read out by

wired remote control operation.

EEPROM data read out [1]

Replacement of P.C. board for Indoor unit servicing and power on [2]

Writing the read out EEPROM data [3]

Power reset

(for all indoor units connected to the remote control when the group operation control is performed.)

CASE 2

The EEPROM before replacement is defective and the setting data cannot be read out.

EEPROM data read out [2]

Writing the setting data to EEPROM, such as high ceiling installation setting and

optional connection setting, etc., based on the customer information. [3]

Power reset

(for all indoor units connected to the remote control when the group operation control is performed.)

– 99 –

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[1] Setting data read out from EEPROM

The setting data modified on the site, other than factory-set value, stored in the EEPROM shall be read out.

SET

TEST

Step 1 Push

and

button on the remote controller simultaneously for more than 4 seconds.

∗ When the group operation control is performed, the unit No. displayed for the first time is the header unit No.

At this time, the CODE No. (DN) shows “10 ”. Also, the fan of the indoor unit selected starts its operation

and the swing operation also starts if it has the louvers.

UNIT LOUVER

Step 2 Every time when the

button is pushed, the indoor unit No. under the group control is displayed in

order. Specify the indoor unit No. to be replaced.

1. Change the CODE No. (DN) to 10-01 by pushing

buttons for the temperature setting.

(this is the setting for the filter sign lighting time.)

At this time, be sure to write down the setting data displayed.

2. Change the CODE No. (DN) by pushing buttons for the temperature setting.

Similarly, be sure to write down the setting data displayed.

3. Repeat the step 2-2 to set the other settings in the same way and write down the setting data as shown

in the table 1 (example).

∗ The COCE No. (DN) are ranged from “01 ” to “FF ”. The CODE No. (DN) may skip.

TEST

Step 3 After writing down all setting data, push

button to return to the normal stop status.

(It takes approx. 1 min until the remote controller operation is available again.)

CODE No. required at least

1. The CODE No. for the Indoor unit type and Indoor unit capacity are

Contents

Type

required to set the rotation number setting of the fan.

2. If the system/indoor/group addresses are different from those before

replacement, the auto-address setting mode starts and the manual

resetting may be required again.

Indoor unit capacity

System address

Indoor unit address

Group address

(when the multiple units group operation including twin system.)

[2] P.C. Board for indoor unit servicing replacement procedures

Step 1 Replace the P.C. board to the P.C. board for indoor unit servicing.

At this time, perform the same setting of the jumper wire (J01) setting (cut), switch SW501, (short-circuit)

connector CN34 as the setting of the P.C. board before replacement.

Step 2 According to the system configuration, turn on the indoor unit following to the either methods shown below.

a) Single operation (Indoor unit is used as standalone.)

Turn on the indoor unit.

1. After completion of the auto-address setting mode (required time: approx. 5 min.), proceed to [3].

(System address = 1, Indoor unit address = 1, Group address = 0 (standalone) are automatically set.)

SET

TEST

2. Push

and

buttons simultaneously for more than 4 seconds to interrupt the auto-address

setting mode, and proceed to [3]. (The unit No. “

” is displayed.)

b) Group operation (including twin system)

Turn on the indoor unit(s) with its P.C. board replaced to the P.C. board for indoor unit servicing, accord-

ing to either methods 1 or 2 shown below.

1. Turn on only the indoor unit with its P.C. board replaced. (Be sure to confirm the remote controller is

surely connected. If not, the operation [3] cannot be performed.)

Perform either methods 1 or 2 described in item a) above.

2. Turn on the multiple indoor units including the indoor unit with its P.C. board replaced.

• Twin 1 system only

• All group connections

After completion of the auto-address setting mode (required time: approx. 5 min.), proceed to [3].

* The header unit of the group may be changed by performing the auto-address setting.

Also, the system address/Indoor unit address of the indoor unit with its P.C. board replaced may be

assigned to the addresses (not used) other than those of the indoor units without its P.C. board replaced.

It is recommended to keep the information in advance, which cooling system the indoor unit belongs to

or whether the indoor unit works as the header unit or the follower unit in the group control operation.

– 100 –

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[3] Writing the setting data to EEPROM

The settings stored in the EEPROM of the P.C. board for indoor unit servicing are the factory-set values.

SET

TEST

Step 1 Push

and

buttons on the remote controller simultaneously for more than 4 seconds.

* In the group control operation, the unit No. displayed for the first time is the header unit No.

At this time, the CODE No. (DN) shows “10 ”. Also, the fan of the indoor unit selected starts its operation

and the swing operation starts if it has the louvers.

(The unit No. “

” is displayed if the auto-address setting mode is interrupted in [2] step 2 a))

UNIT LOUVER

Step 2 Every time when

button is pushed, the indoor unit Nos. in the group control operation are dis-

played in order.

(The settings stored in the EEPROM of the P.C. board for indoor unit servicing are the factory-set values.)

Specify the indoor unit No. with its P.C. board replaced to the P.C. board for indoor unit servicing.

(You cannot perform this operation if “

” is displayed.)

Step 3 Select the CODE No. (DN) can be selected by pushing the

button for the temperature setting.

• Set the indoor unit type and capacity.

The factory-set values shall be written to the EEPROM by changing

the type and capacity.

<Fig. 1 RBC-AMT32E>

1. Set the CODE No. (DN) to “10 ”. (without change)

2. Select the type by pushing

buttons for the timer setting.

(For example, 4-way Air Discharge Cassette Type is set to “0001”.

Refer to table 2)

SET

3. Push

button.

(The operation completes if the setting data is displayed.)

4. Change the CODE No. (DN) to “11 ” by pushing

buttons for the temperature setting.

5. Select the capacity by pushing

buttons for the timer setting.

(For example, 80 Type is set to “0012”. Refer to table 2)

SET

6. Push

button.

(The setting completes if the setting data are displayed.)

3 6 5 1 4 2

Setting 4-way air discharge cassette Indoor Unit model only

buttons, set “CE ” to the CODE No. (DN).

buttons, set the data. (0001)

7. Using the set temperature

8. Using the timer time

SET

9. Push

button. (The setting completes if the setting data are displayed.)

If the plug for short-circuit is attached on the P.C. board

before replacement, attach it on the P.C. board replaced.

Connector (CN504)

for drain pump

CAUTION

Be sure to set the jumper wire since the motor

protection level setting selection is performed on it.

CN34

* Set J02 as follows depending on the capacity class.

SW501

(Red)

Jumper wire (J02)

J02

J01

SM56, 80 type

None

SM110, 140 type

Required (factory setting)

TEST

10. Push the

button to return to the normal stop status.

(It takes approx. 1 min until the remote controller operation is available again.)

Step 4 Write the on-site setting data to the EEPROM, such as address setting, etc. Perform the steps 1 and 2

above again.

Step 5 Change the CODE No. (DN) to “01 ” by pushing

buttons for the temperature setting.

(this is the setting for the filter sign lighting time.)

– 101 –

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Step 6 Check the setting data displayed at this time with the setting data put down in [1].

1. If the setting data is different, modify the setting data by pushing

the data put down in [1].

buttons for the timer setting to

The operation completes if the setting data is displayed.

2. If the data is the same, proceed to next step.

Step 7 Change the CODE No. (DN) by pushing

As described above, check the setting data and modify to the data put down in [1].

Step 8 Repeat the steps 6 and 7.

Step 9 After the setting completes, push

buttons for the temperature setting.

TEST

button to return to the normal stop status.

(It takes approx. 1 min until the remote control operation is available again.)

* The COCE No. (DN) are ranged from “01 ” to “FF ”. The CODE No. (DN) is not limited to be serial No.

SET

Even after modifying the data wrongly and pushing

button, it is possible to return to the data before

modification by pushing

button if the CODE No. (DN) is not changed.

<Fig. 2 EEPROM layout diagram>

The EEPROM (IC503) is attached to the IC socket. When detaching the EEPROM, use a tweezers, etc.

Be sure to attach the EEPROM by fitting its direction as shown in the figure.

∗ Do not bend the IC lead when replacing.

Cut out

EEPROM

IC503

Cut out

IC socket

<Fig. 2>

– 102 –

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Table 1. Setting data (CODE No. table (example))

Setting data

Item

Filter sign lighting time

Factory-set value

Depending on Type

Filter pollution leve

l 0000: standard

Central control address

0099: Not determined

0002: +2°C

(flooring installation type: 0)

Heating suction temperature shift

Cooling only

0000: Heat pump

Type

Depending on model type

Depending on capacity type

0099: Not determined

Depending on Type.

Indoor unit capacity

System address

Indoor unit address

Group address

Flap type (wind direction adjustment)

Temperature range of cooling/heating

automatic SW control point

0003: 3 deg (Ts 1.5)

Power failure automatic recovery

Option/Abnormal input (CN70) SW

0000: None

0002: Humidifier

Thermo output SW (T10

)

0000: Thermo ON

0000: Not available

0000: Body sensor

0003: Humidifier ON + Pump OFF

0000: Standard

Ventilation fan (standalone)

Sensor SW

Humidifier control (+ drain pump control)

High ceiling SW

Timer setting (wired remote controller)

0000: Available

Demand setting

(outdoor unit current demand)

0075: 75 %

Remote controller operation save function

Rotation number of the self-clean operation

Frost protection function

0001: Enable

0001: 210ypm(at self-clean operation)

0000: None

Swing mode

0001: Standard

Louver fixing position (Flap No. 1)

Louver fixing position (Flap No. 2)

Louver fixing position (Flap No. 3)

Louver fixing position (Flap No. 4)

0000: Not fixed

Table 2.Type: CODE No. 10

Table 3. Indoor unit capacity:

CODE No. 11

Setting data

Type

Type name abb.

Setting data

0000∗

0009

Type

Disable

0001^{*1 * 2}

4-way Air Discharge Cassette Type RAV-SM∗∗∗UT-E

∗1 EEPROM initial value on the P.C. board for indoor unit servicing

∗2

0012

CAUTION

0015

110

0017

140

For the above models, set the CODE No. to “ CE ” and the setting

data 0000 (initial) to “0001”.

∗ EEPROM initial value on the P.C. board

for indoor unit servicing.

– 103 –

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10-2. Outdoor Unit

1. Setting the jumper wires and DIP switches

Part name

Function

Setting

J800 to J803

Model switching

Cut these jumper wires according to the following table.

Jumper wire

DIP switch

Set these jumper wires to the settings of the P.C. board before

replacement.

J804 to J810

Settings

SW802

SW803

SW804

Settings

Set SW802 to the setting of the P.C. board before replacement.

Set SW803 to all OFF.

LED indication switching

Special operations for service Set SW804 to all OFF.

Model switching (J800 to J803)

Since this service P.C. board is available for several models, cut the jumper wires according to the following table.

If they are not cut correctly, an error code “L10” or “L29” appears on the remote controller and the operation of the air

conditioner is disabled.

Model name

Factory setting (default)

RAV-SP1104AT∗-E

RAV-SP1404AT∗-E

J 800 J 801 J 802 J 803

¡ ×

∗ : Characters that indicate the following:

No character ...... Standard models

: Connected,

: Cut

Z......................... For salt-affected areas

ZG ...................... For heavily salt-affected areas

J800 to J803

2. Installing the P.C. board

1) Apply thermal grease to the back (heat sink contacting side) of devices Q200, Q650, DB01, and DB02.

( Q300 and Q400 are not necessary to be applied thermal grease.)

2) Reuse the insulating sheet. When a small amount of thermal grease is applied to the back of the insulating

sheet, it adheres temporarily to the heat sink, which makes it easy to attach the insulating sheet.

3) Insert the P.C. board, align the holes of the insulating sheets, semiconductor devices, and heat sinks, and

then secure them with screws.

4) Connect the lead wires according to the wiring diagram sticked on the backside of the pannel .

Reuse the insulating sheet.

Apply thermal grease to

Applying thermal grease to the back

the back (heat sink contacting side) of

of the insulating sheet makes it easy

Q200, Q650, DB01, and DB02.

to attach the insulating sheet.

– 104 –

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11. SETUP AT LOCAL SITE AND OTHERS

11-1. Indoor Unit

11-1-1. Test Run Setup on Remote Controller

TEST

1. When pushing

button on the remote controller for 4 seconds or more, “TEST” is displayed on LC display.

ON / OFF

Then push

button.

• “TEST” is displayed on LC display during operation of Test Run.

• During Test Run, temperature cannot be adjusted but air volume can be selected.

• In heating and cooling operation, a command to fix the Test Run frequency is output.

• Detection of error is performed as usual. However, do not use this function except case of Test Run be-

cause it applies load on the unit.

2. Use either heating or cooling operation mode for [TEST].

NOTE : The outdoor unit does not operate after power has been turned on or for approx. 3 minutes after

operation has stopped.

TEST

3. After a Test Run has finished, push

button again and check that [TEST] on LC display has gone off.

(To prevent a continuous test run operation, 60-minutes timer release function is provided to this remote

controller.)

(4-way Air Discharge Cassette Type only)

Turn off power of the unit.

Remove the adjuster attached with sensors from the ceiling panel. For removing, refer to the Installation

manual attached to the ceiling panel.

(Be careful to handle the adjuster because cables are connected to the sensor.)

Remove the sensor cover from the adjuster. (1 screw)

Change ON of Bit [1:TEST] of the sensor P.C. board switch [S003] to OFF.

Mount the sensor cover and mount the adjuster with sensor to the ceiling panel.

Turn on power of the unit.

ON / OFF

Push

mode using

button on the wireless remote controller and select [COOL] or [HEAT] operation

MODE

button.

(All the display lamps of sensors on the wireless remote controller flash during Test Run.)

• Do not perform Test Run operation in other modes than [HEAT] / [COOL] mode.

• Detection of error is performed as usual.

ON / OFF

After Test Run operation, push

Turn off power of the unit.

button to stop the operation.

Return Bit [1] of the sensor P.C. board switch [S003]

DIP switch S003

Bit 1: OFF → ON

to the original position. (ON → OFF)

Mount the adjuster with sensors to the ceiling panel.

Sensor board

Sensor cover

Adjust corner cap

with sensor

– 105 –

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(Except 4-way Air Discharge Cassette Type and Under Ceiling Type)

Remove a screw which fixes the serial olate of the receiver part on the wireless remote

controller.

Remove the nameplate of the reciver section by inserting a minus screwdriver, etc. into the notch at the

bottom of the plate, and set the Dip switch to [TEST RUN ON].

Execute a test operation with

button on the wireless remote controller.

•

and LED flash during test operation.

• Under status of [TEST RUN ON], the temperature adjustment from the wireless remote controller is

invalid.

Do not use this method in the operation other than test operation because the equipment is damaged.

Use either [COOL] or [HEAT] operation mode for test operation.

• The outdoor unit does not operate approx. 3 minutes

after power-ON and operation stop.

Receiver unit

Spacer

After the test operation finished, stop the air

conditioner from the wireless remote controller,

and return Dip switch of the sensor section as before.

M4 × 25 screw

(2 pieces)

(A 60 minutes timer clearing function is attached to the sensor

section in order to prevent a continuous test operation.)

Nameplate

Notch

Small screw

(Under Ceiling Type only)

Turn off power of the air conditioner.

Remove the adjust corner cap attached with sensor section from the ceiling panel. For removing method,

follow to the installation manual attached to the ceiling panel. (Be careful to handle the sensor section

because cables are connected to the sensor section.)

Remove the sensor cover from the adjust corner cap. (1 screw)

Change Bit [1:TEST] of the switch [S003] on the sensor P.C. board from OFF to ON.

Mount the sensor cover and attach the adjust corner cap with with sensors to the ceiling panel.

Turn on power of the air conditioner.

Push

button of the wireless remote controller and select an operation mode [COOL] or

MODE

[HEAT] with

button. (All the display lamps of the wireless remote controller sensor

section flash during the tst operation.)

• Do not use operation mode other than [COOL] or [HEAT].

• Error is detected as usual.

When the test operation has finished, push button to stop the operation.

Turn off power of the air conditioner.

Change Bit [1] of the switch [S003] on the sensor

P.C. board from ON to OFF. Attach the adjust

corner cap with sensors to the ceiling panel.

1 2

– 106 –

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Procedure

Description

Turn on power of the air conditioner.

The operation is not accepted for 5 minutes when power has been turned on at first time after installation,

and 1 minute when power has been turned on at the next time and after. After the specified time has

passed, perform a test operation.

Push [Start/Stop] button and change the operation mode to [COOL] or [HEAT] with [Mode] button.

Then change the fan speed to [High] using [Fan] button.

Test cooling operation

Test heating operation

Set temperature to [18°C] using [Temperature set]

button.

Set temperature to [30°C] using [Temperature set]

button.

After checking the receiving sound “Pi”, immediately After checking the receiving sound “Pi”, immediately

push [Temperature set] button to set to [19°C] push [Temperature set] button to set to [29°C].

After checking the receiving sound “Pi”, immediately After checking the receiving sound “Pi”, immediately

push [Temperature set] button to set to [18°C]. push [Temperature set] button to set to [30°C].

Then repeat the procedure

→

4 5 4 5

After approx. 10 seconds, all the display lamps on the sensor part of wireless remote controller,

[Operation] (Green), [Timer] (Green), and [Ready] (Yellow) flash and the air conditioner starts operation.

If the lamps do not flash, repeat the procedure

and after.

After the test operation, push [Start/Stop] button to stop the operation.

Test cooling operation:

Start → 18°C → 19°C → 18°C → 19°C → 18°C → 19°C → 18°C → (Test operation) → Stop

Test heating operation:

Start → 30°C → 29°C → 30°C → 29°C → 30°C → 29°C → 30°C → (Test operation) → Stop

Be sure to set the

air speed to [High]

3, 4, 5, 6

2, 7

– 107 –

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11-1-2. Forced Defrost Setup of Remote Controller (For wired remote controller only)

(Preparation in advance)

TEST

SET

Push

buttons simultaneously for 4 seconds or more on the remote controller.

(Push buttons while the air conditioner stops.)

The first displayed unit No. is the master indoor unit address in the group control.

UNIT

Every pushing

other.

button, the indoor unit No. in the group control is displayed one after the

Select a main indoor unit (outdoor unit is connected) which is to be defrosted. In this time, fan and louver of

the selected indoor unit operate.

TEMP.

Using the set temperature

buttons, specify the item code (DN) 8C.

TIME

Using the timer time

buttons, set time to data 0001. (0000 at shipment)

SET

Push

button. (OK if indication lights)

TEST

Pushing

button returns the status to the normal stop status.

(Practical operation)

ON / OFF

• Push ON/OFF

Key.

• Select the HEAT mode.

• After while, the forced defrost signal is sent to the outdoor unit and then the outdoor unit starts defrost operation.

(The forced defrost operation is performed for Max. 12 minutes.)

• After defrost operation finished, the operation returns to the heating operation.

To execute the defrost operation again, start procedure from above item

(If the forced defrost operation was executed once, setting of the above forced defrost operation is cleared.)

11-1-3. LED Display on P.C. Board

1. D501 (Red)

• It goes on (Goes on by operation of the main microcomputer) at the same time when the power supply is

turned on.

• It flashes with 1-second interval (every 0.5 second):When there is no EEPROM or writing-in operation fails.

• It flashes with 10-seconds interval (every 5 second): During DISP mode

• It flashes with 2-seconds interval (every 1 second): While setting of function select (EEPROM)

2. D403 (Red)

• It goes on when power supply of the remote controller is turned on. (Lights on hardware)

3. D503 (Yellow): Main bus communication

• It goes on for 5 seconds in the first half of communication with the central controller.

4. D504 (Green): Sub bus communication

• It flashes for 5 seconds in the first half of communication with the remote controller. (Group master unit)

• It flashes with 0.2-second interval (for 0.1 second) for 5 second in the latter half of communication between

master and follower in the Gr indoor unit.

5. D14 (Orange)

• It flashes while receiving the serial signal from the outdoor unit. (Hardware)

6. D15 (Green)

• It flashes while sending the serial signal to the outdoor unit. (Hardware)

– 108 –

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11-1-4. Function Selection Setup

<Procedure> Perform setting while the air conditioner stops.

TEST

SET

Push

buttons simultaneously for 4 seconds or more.

The first displayed unit No. is the master indoor unit address in the group control.

In this time, fan and louver of the selected indoor unit operate.

UNIT LOUVER

Every pushing

button (button at left side), the indoor unit No. in the group control is

displayed one after the other. In this time, fan and louver of the selected indoor unit only operate.

TEMP.

Using the set temperature

buttons, specify the item code (DN).

TIME

Using the timer time

buttons, select the set data.

SET

Push

button. (OK if indication lights)

• To change the selected indoor unit, proceed to Procedure

• To change item to be set up, proceed to Procedure

TEST

Pushing

button returns the status to the normal stop status.

TEMP.

ON / OFF

TIMER SET

TIME

FAN

SAVE

MODE

VENT

FILTER

RESET TEST

SET

SWING/FIX

UNIT LOUVER

1 2 3 4 5 6 END

– 109 –

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Function selection item No. (DN) list

Item

Contents

At shipment from factory

0000: None

0001: 150H

Filter sign lighting time

0002: 2500H

0004: 10000H

0003: 5000H

0005: Clogging sensor used

According to type

0000: Standard

0001: Heavy stain (Half of standard time)

Filter stain level

0000: Standard

0001: No.1 unit

0099: Undecided

0064: No.64 unit

Central control address

0099: Undecided

0000: No shift

0002: +2°C

0001: +1°C

0010: +10°C

(Up to +6 is recommended.)

0002: +2°C

(Floor type 0000: 0°C)

Heating suction temp. shift

0000: Heat pump

0001: Cooling only (No display for [AUTO] [HEAT] )

0F Cooling-only

0000: Heat pump

0000: (1-way air discharge cassette)

0001: (4-way air discharge cassette) to 0037

Type

According to model type

Indoor unit capacity

Line address

0000: Undecided

0001: No.1 unit

0000: Individual

0001 to 0034

According to capacity type

0099: Undecided

0030: No.30 unit

0064: No.64 unit

0001: Master unit in group

Indoor unit address

0099: Undecided

Group address

0099: Undecided

0002: Follower unit in group

0000: No louver model

(0002:1-way)

0004: 4-way

0001: Swing only

(0003:2-way)

Louver type

(Adjustment of air direction)

According to model type

In automatic cooling/heating, temp.

1E width of cool → heat, heat → cool

0000: 0 deg

0010: 10 deg

0003: 3 deg

(Ts 1.5)

(Cool/heat are reversed with (Data value) /

2 against the set temperature)

mode selection control point

Automatic reset of power failure

0000: None

0001: Provided

0000: None

0000: Filter input

0002: Humidifier input

0001: Alarm input

2A Selection of option / error input (CN70)

0002: Humidifier

(Air cleaner, etc.)

Selection of thermostat output

0000: Indoor thermostat ON

0001: ON receiving output of outdoor compressor

0000: Thermostat ON

(T10

)

0000: Normal (JEMA)

0002: Fire alarm input

0001: Card input

(Forgotten to be off)

0000: Normal

(HA terminal)

2E Selection of HA (T10) terminal

AUTO grille

(This function is not provided.)

0000: Impossible

0001: Possible

0000: Impossible

Fan (Single operation)

Sensor selection

0000: Impossible

0000: Body TA sensor

0000: No control

0001: Possible

0000: Impossible

0001: Remote controller sensor

0000: Body sensor

Humidifier control

(+Drain pump control)

(This function is not provided.)

0001: Humidifier + Vaporizing type (Pump ON)

0002: Humidifier + Supersonic type

(Pump ON when specified time elapsed)

0003: Humidifier + Natural drain type (Pump OFF)

0003: Humidifier ON

Pump OFF

0000: Standard filter

High ceiling selection

(Air volume selection)

0001: Super long life

0003: High performance (65%), High performance (90%),

(0006:Deodorant, Ammonia deodorization)

0000: Standard

0000: Operable

Timer setting (Wired remote controller) 0000: Operable

0001: Operation prohibited

– 110 –

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Item

Contents

0000: 0.5 h to 0.012: 0 h

At shipment from factory

0000: None

Set when compressor-ON time is 10 to 60 minutes.

Self-clean operation time

0002: 1 hour

When ON-time is 60 minutes or more,

the double of this operation time setting is set.

Selection of louver horizontal discharge

position

0000: Smudging-less setting

0002: Cold draft preventive setting

0000: Smudging-

less setting

C2 Current demand X% to outdoor unit

0050: 50%

0100: 100%

0075: 75%

0000: No

• Clean operation is performed in case of stop by HA input.

• HA operation output OFF during clean operation in case of

stop by remote controller

0000: None

CC Setting of self-clean operation forced stop

0001: Yes

• Clean operation is not performed in case of stop by HA input.

• HA operation output ON during clean operation in case of stop

by remote controller

The air conditioner stops (including fire alarm such as remote

monitor system) while setup of [ON/OFF] operation prohibited

(Central 1, 2) is performed from the central controller side.

Clean operation stop function when

0000: Valid

[ON/OFF] operation is prohibited.

0000: Valid (Clean operation)

0001: Invalid (No clean operation)

D0 Existence of remote controller save function 0000: Invalid (Impossible)

D1 Existence of 8°C heating operation function 0000: Invalid (Impossible)

0001: Valid (Possible)

0001: Invalid (Impossible)

0000: Invalid (Self clean operation is not carried out.)

0001: Valid (Self clean operation is practiced with 210 rpm.)

0001: Valid

D3 Revolution frequency of self clean operation

(210 rpm / operation)

Display / No display of

[Dry operation] during self clean operation

0000: Display

0001: No display

0000: Display

0000: No synchronization

0002: Dual

0001: 4-way synchronization

0003: Cycle

0001: 4-way

F0 Louver swing mode

synchronization

0000: Release (Free)

F1 Louver No.1 fixed position

0001 to 0005: Horizontal discharge position to

Downward discharge position

0000: Release

0000: Release (Free)

0001 to 0005: Horizontal discharge position to

Downward discharge position

F2 Louver No.2 fixed position

F3 Louver No.3 fixed position

F4 Louver No.4 fixed position

0000: Release (Free)

0001 to 0005: Horizontal discharge position to

Downward discharge position

0000: Release (Free)

0001 to 0005: Horizontal discharge position to

Downward discharge position

∗ The swing mode selection (DN code No. [F0]), louver fix (DN code No. [F1] to [F4]) and restriction ratio setting for

save operation (DN code No. [C2]) can be set/changed from the normal DN setup (Detail DN setup).

– 111 –

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11-1-5. Wiring and Setting of Remote Controller Control

2-remote controller control

(Controlled by 2 remote controllers)

This control is to operate 1 or multiple indoor units

are operated by two remote controllers.

How to set wired remote controller

as sub remote controller

Change DIP switch inside of the rear side of the

remote controller switch from remote controller master

to sub. (In case of RBC-AMT32E)

(Max. 2 remote controllers are connectable.)

• When connected 2 remote controllers

operate an indoor unit

Remote controller (Inside of the rear side)

Remote controller

switch (Master)

Remote controller

switch (Sub)

Sold

separately

1 2

A B

Sub remote

controller

Master remote

controller

Remote controller

cables (Procured locally)

DIP switch

Terminal block for

remote controller cables

A B

Indoor unit

1 2 3

Outdoor unit

How to set wireless remote controller to sub

remote controller

Change OFF of Bit [3: Remote controller Sub/Master]

of switch S003 to ON.

• When connected 2 remote controllers

operate the twin

Remote controller

switch (Master)

Remote controller

switch (Sub)

Remote controller

inter-unit wire

(Procured locally)

Sold

separately

DIP switch S003

Bit 1: OFF → ON

A B

Terminal block for

remote controller cables

Sensor board

Sensor cover

A B

Indoor unit 1

1 2 3

Indoor unit 2

1 2 3

Adjust corner cap

with sensor

1 2 3

Inter-unit wiring

between indoor units

(Procured locally)

Outdoor unit

(Setup method)

[Operation]

One or multiple indoor units are controlled by

2 remote controllers.

1. The operation contents can be changed by Last-

push-priority.

(Max. 2 remote controllers are connectable.)

2. Use a timer on either Master remote controller or

Sub remote controller.

– 112 –

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11-1-6. Monitor Function of Remote Controller Switch

n Calling of sensor temperature display

Each data of the remote controller, indoor unit and outdoor unit can be understood by calling the service monitor

mode from the remote controller.

TEST

Push

buttons simultaneously for 4 seconds to

call the service monitor mode.

The service monitor goes on, the master indoor unit No. is

displayed at first and then the temperature of item code 00 is

displayed.

TEMP.

ON / OFF

TIMER SET

TIME

FAN

SAVE

MODE

VENT

TEMP.

Push temperature set

the item code of data to be monitored.

buttons and then change

FILTER

RESET TEST

SET

SWING/FIX

UNIT LOUVER

The item code list is shown below.

2 4 1

1 2 3 4

Returned to usual display

Item code

Data name

Unit

Item code

Data name

Unit

Room temperature

°C

Outdoor heat exchanger (Coil) temperature (TE)

Outside temperature (TO)

°C

(Remote controller)

Indoor suction temperature (TA)

°C

Compressor discharge temperature (TD)

Compressor suction temperature (TS)

Heat sing temperature (THS)

°C

Indoor heat exchanger (Coil)

temperature (TCJ)

°C

Indoor heat exchanger (Coil)

temperature (TC)

°C

Operation current

Outdoor heat exchanger (Coil) temperature (TL)

Compressor operation frequency

°C

Indoor fan revolution frequency

Indoor fan calculated operation time

Filter sign time

rpm

×100h

×1h

rps

rpm

×100h

Outdoor fan revolution frequency (Lower)

Outdoor fan revolution frequency (Upper)

Compressor calculated operation time

Indoor discharge temperature*1

°C

UNIT

Push

button to select the indoor unit to be monitored.

Each data of the indoor unit and its outdoor units can be monitored.

TEST

Pushing

button returns the status to the usual display.

∗1 The indoor discharge temperature of item code [F8] is the estimated value from TC or TCJ sensor.

Use this value to check discharge temperature at test run.

(A discharge temperature sensor is not provided to this model.)

• The data value of each item is not the real time, but value delayed by a few seconds to ten-odd

seconds.

• If the combined outdoor unit is one before 2 or 3 series, the outdoor unit data [6D], [70], [72] and [73]

are not displayed.

– 113 –

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n Calling of error history

The error contents in the past can be called.

SET

TEST

Push

buttons simultaneously for

4 seconds or more to call the service check mode.

TEMP.

ON / OFF

Service Check goes on, the item code 01 is displayed, and

then the content of the latest alarm is displayed. The number

and error contents of the indoor unit in which an error oc-

curred are displayed.

TIMER SET

TIME

FAN

SAVE

MODE

VENT

FILTER

RESET TEST

SET

SWING/FIX

UNIT LOUVER

In order to monitor another error history, push the set

temperature

buttons to change the error

history No. (Item code).

Item code 01 (Latest) → Item code 04 (Old)

NOTE : 4 error histories are stored in memory.

2 3 1

TEST

Pushing

button returns the display to usual display.

1 2 3

REQUIREMENT

Do not push

indoor unit are deleted.

button, otherwise all the error histories of the

Returned to usual display

(Group control operation)

In a group control, operation of maximum 8 indoor units can be controlled by a remote controller.

The indoor unit connected with outdoor unit (Individual/Master of twin) controls room temperature according to

setting on the remote controller.

OUT

Master

2-1

1-1

3-1

4-1

7-1

Max. 8 units

Remote controller

1. Display range on remote controller

The setup range (Operation mode/Air volume select/Setup temp) of the indoor unit which was set to the

master unit is reflected on the remote controller.

2. Address setup

Turn on power of the indoor unit to be controlled in a group within 3 minutes after setting of automatic

address.

If power of the indoor unit is not turned on within 3 minutes (completion of automatic address setting), the

system is rebooted and the automatic address setting will be judged again.

1) Connect 3 In/Out cables surely.

2) Check line address/indoor address/group address of the unit one by one.

3) The unit No. (line/indoor gout address) which have been set once keep the present status as a rule if the

unit No. is not duplicated with one of another unit.

– 114 –

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n Indoor unit power-ON sequence

Power ON

• The unit without power feed waits entirely

→ Waiting status is released by system start

• Reboot when power is fed on the way

<Automatic

address judgment>

Not normal

3 minutes elapse

Gr construction check

YES

Normal

∗ Gr normal

1) There is no duplicated indoor unit address.

2) There is no invalid indoor unit address.

3) Individual unit and master/follower units

are not intermingled.

4) Only a unit for individual.

5) A master indoor unit and 1 or more

follower indoor units for Gr.

System start

Automatic address starts.

(Approx. 1 minute up to finish)

Outdoor model distinction (10 seconds) (Indoor unit)

Twin Master/follower distinction (Indoor unit)

Gr construction, louver information (Remote controller)

• Power supply/Indoor/Outdoor serial and Gr wiring: OK

• Powers of all indoor units are turned on within 3 minutes.

• Reception time for remote controller operation

(After power supply was turned on)

1) When address is OK : Approx. 50 seconds

2) In AUTO address

: Approx. 4 to 5 minutes

Remote controller operation is available.

(Approx. 50 seconds after power-ON)

<Usual regular

communication>

Regular communication between indoor units (Every 30 seconds) (Master/Follower)

Regular communication on the identical pipe (every 30 seconds) (Twin Master/Follower)

(When the above status changes, immediately communicates.)

(Repetition)

• In a group operation, if the indoor unit which was fed power after judgment of automatic address cannot receive

regular communication from the master unit and regular communication on identical pipe within 120 seconds after

power was turned on, it reboots (system reset).

→ The operation starts from judgment of automatic address (Gr construction check) again.

(If the address of the master unit was determined in the previous time, the power fed to the master unit and

reboot works, the master unit may change though the indoor unit line address is not changed.)

– 115 –

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11-2. Setup at Local Site / Others

Model name:TCB-PCNT30TLE2

11-2-1. TCC-LINK Adapter (For TCC-LINK Central Control)

1. Function

This model is an optional P.C. board to connect the indoor unit to TCC-LINK (Central controller).

2. Microprocessor block diagram

Indoor unit

Central

controller

TCC-LINK adapter P.C. board

CN40

CN050

Indoor control

P.C. board

CN51

TCC-LINK

communication circuit

Terminal

resistance

CN041

SW01

TCC-LINK

MCC-1440

Terminal block

(A, B)

Communication units:

Total 64 units

Communication distance:

2000 m

Remote controller

3. TCC-LINK wiring connection

CAUTION

1) When controlling customized setup collectively, TCC-LINK adapter (This option) is required.

2) In case of group operation or twin/triple operation, the adapter is necessary to be connected to the main unit.

3) Connect the central control devices to the central control system wiring.

4) When controlling collectively customized setup only, turn on only Bit 1 of SW01 of the least line of the system

address No. (OFF when shipped from the factory)

* In case of customized setup, the address is necessary to be set up again from the wired remote

controller after automatic addressing.

Central control device

Central control devices: Max. 10 units

U1 U2

U3 U4

U1 U2

U3 U4

Refrigerant line 1

Refrigerant line 2

Refrigerant line 3

1 2 3

Refrigerant line 4

1 2 3

Outdoor unit

1 2 3

Indoor/outdoor inter-unit wire (AC230V serial)

Central control system wiring

Caution 3

* Wiring for No.1 and 2 only

Master

unit

Sub

unit

Sub unit

Master unit

Indoor unit

U3 U4 1 2 3

A B

U3 U4 1 2 3

1 2 3

A B

U3 U4 1 2 3

A B

TCC-LINK adapter

This product

(

)

Caution 1

Caution 2

sold separately

Remote controller

wiring

Remote controller

Group operation (Max. 8 units)

Indoor units in all refrigerant lines: Max. 64 units

Twin operation

[If mixed with multi model (Link wiring), multi indoor units are included.]

* However group sub units and twin sub units of customized setup are not included in number of the units.

– 116 –

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4. Wiring specifications

• Use 2-core with no polar wire.

• Match the length of wire to wire length of the central

control system.

No. of wires

Size

Up to 1000m: twisted wire 1.25mm²

Up to 2000m: twisted wire 2.0mm²

If mixed in the system, the wire length is

lengthened with all indoor/outdoor inter-unit wire length at side.

• To prevent noise trouble, use 2-core shield wire.

• Connect the shield wire by closed-end connection and apply open process (insulating process) to the last

terminal. Ground the earth wire to 1 point at indoor unit side. (In case of central controlling of digital inverter

unit setup)

CAUTION

1) Closed-end connection of shield wire (Connect all the connecting parts of each indoor unit)

2) Apply open process to the last terminal (insulating process).

Central control device

3) Ground earth wire to 1 point at indoor unit side.

U1 U2

Caution 2

Caution 1

Caution 3

Central control system wiring

Outdoor unit

1 2 3

: TCC-LINK adapter

(This option)

Master

unit

U3 U4 1 2 3

Sub unit

1 2 3

Sub unit

Master unit

Indoor unit

U3 U4 1 2 3

A B

1 2 3

U3 U4 1 2 3

A B

Earth terminal

Remote controller

(Group operation)

(Twin operation)

5. P.C. board switch (SW01) setup

When performing collective control by customized setup only, the setup of terminator is necessary.

• Using SW01, set up the terminator.

• Set up the terminator to only the adapter connected to the indoor unit of least line address No.

Central control device

Central control devices: Max. 10 units

U1 U2

U3 U4

U1 U2

U3 U4

Refrigerant line 1

Outdoor unit

Refrigerant line 2

Refrigerant line 3

1 2 3

Refrigerant line 4

1 2 3

Indoor/outdoor inter-unit wire (AC230V serial)

Central control system wiring

* Wiring for No.1 and 2 only

Master

unit

Sub

unit

Sub unit

Master unit

Indoor unit

U3 U4 1 2 3

1 2 3

A B

Remote controller wiring

Remote controller Remote controller

Group operation (Max. 8 units)

1 2 3

U3 U4 1 2 3

A B

TCC-LINK adapter

This product

sold separately

(

)

Remote controller

Twin operation

Line address

SW01 Bit 1

SW01 Bit 2

Remarks

OFF

(OFF at shipment from factory)

Turn SW01 Bit 1 to ON. As status shipped from factory

As status shipped from factory

(Reference) Setup contents of switch

SW01

Terminator

Remarks

Bit 1

OFF

Bit 1

OFF

None

100Ω

75Ω

Mixed with multi (Link wiring) at shipment from factory

Central control by digital inverter only

Spare

43Ω

– 117 –

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6. External view of P.C. board assembly

Terminator (SW01)

7. Address setup

In addition to set up the central control address, it is necessary to change the indoor unit number.

(Line/Indoor/Group address).

For details, refer to TCC-LINK Adapter Installation Manual.

11-3. How to Set up Central Control Address Number

When connecting the indoor unit to the central control remote controller using TCC-LINK adapter, it is neces-

sary to set up the central control address number.

• The central control address number is displayed as the line No. of the central control remote controller.

1. Setup from remote controller at indoor unit side

* If you use the network adapter P.C. board, it is effective only when No. 7 of setup switch SW01 on P.C.

board is turned off.

<Procedure> Perform setup while the unit stops.

VENT

TEST

Push

When group control is executed, first the unit No.

control are selected. In this time, fans of all the selected indoor units are turned on. (Fig. 1)

buttons for 4 seconds or more.

is displayed and all the indoor units in the group

UNIT

(Keep

displayed status without pushing

button.)

In case of individual remote controller which is not group-controlled, Line address and Indoor unit address

are displayed.

TEMP.

Using temperature setup

buttons, specify item code 03.

TIME

Using timer time

buttons, select the setup data.

The setup data is shown in the table below (Table 1).

SET

Push

button. (OK if display goes on.)

(Fig.1)

• To change the item to be set up, return to Procedure 2.

TEST

Push

button.

The status returns to usual stop status.

(Table 1)

TEMP.

ON / OFF

Setup data

Central control address No.

TIMER SET

FAN

SAVE

MODE

VENT

0001

0002

0003

TIME

FILTER

RESET TEST

SET

SWING/FIX

UNIT LOUVER

0064

0099

Unset (Setup at shipment from factory)

– 118 –

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2. How to confirm the central control address

(New function for AMT32 remote controller)

<Procedure> It can be confirmed even during operation or stopping.

UNIT LOUVER

Push

button for 4 seconds or more.

In the frame at left side of the remote controller screen, the lighting set contents are

displayed.

During unset time, 0099 (At shipment from factory) is displayed.

After lighting display for 3 seconds, the display automatically disappears.

If any button is pushed during display, immediately the display disappears and then the pushed button is

displayed.

– 119 –

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∗ Dual swing

(Recommended for heating operation)

3. How to set up type of swing

SWING/FIX

Push

of the operation.

for 4 seconds or more during stop

• The adjoined louvers repeat horizontal

discharge/Downward discharge alternately

to clear irregularity of the temperature in

heating operation.

•

flashes.

UNIT LOUVER

Push

(At the left side of the button)

• The vertical discharge spreads hot air to the

floor, and the horizontal discharge stirs.

Both suppress the temperature irregularity.

and select the unit to be selected.

• Every pushing the button, the unit No. changes.

Horizontal

discharge

UNIT No.

1–1

UNIT No.

1–2

UNIT No.

1–3

Horizontal

discharge

UNIT No.

No display

UNIT No.

1–4

Downward

discharge

Downward

discharge

The fan of the selected unit rotates and the louver swings.

Using TIMER SET

the swing.

buttons, select type of

Horizontal

discharge

Horizontal

discharge

Downward

discharge

Downward

discharge

Swing setup code

∗ Cycle swing

Swing setup code

Louver operation

Standard swing (At shipment)

Dual swing

(Recommended for cooling operation)

• 4 louvers swing with time lag as if they

heave.

0001

0002

0003

Cycle swing

REQUIREMENT

• Do not set 0000. (Louver may cause a trouble.)

SET

Push

TEST

to finish the setup.

∗ Standard swing

Four louvers swing simultaneously with the same

angel.

Swing

– 120 –

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∗ F1 displayed at the item code on the remote

controller means that the 01 louver was selected

4. How to set louver lock (Louver fix)

UNIT LOUVER

Push

(At the right side of the

as shown in the figure.

button) for 4 seconds or more during stop

of the operation.

Refrigerant pipe

•

flashes.

Electric parts box

UNIT LOUVER

Push

(At the left side of the button)

and select the unit to be set.

Drain pipe

• Every pushing the button, the unit No.

changes.

UNIT No.

1–1

UNIT No.

1–2

UNIT No.

1–3

NOTIFICATION

UNIT No.

1–4

• Even if louver lock works, the louver temporarily

moves in the following cases.

1) During stop

2) At start of heating operation

3) During defrost operation

4) During thermostat OFF

The fan of the selected unit rotates and the

louver swings.

Push temp. set

to display the

louver No. of which air direction is to be

fixed.

5. How to clear louver lock

• The selected louver swings.

In the item 4 of the louver lock setup

procedure, set the air direction to 0000.

[F1]

[F2]

[F3]

[F4]

•

mark goes off.

Code 0000

The operations from 1 to 3, 5 and

6 are same as those of the louver lock.

Push TIMER SET

and select air

direction of the louver of which swinging

you do not want.

6. How to set contents of save operation

In combination with outdoor units before 4 series,

the displayed setup value exchanges, but the real

operation is “75% fixed”.

SAVE

Code 0001

0002

0003

Push

for 4 seconds or more during

stop of the operation.

•

flashes.

UNIT LOUVER

Push

(At the left side of the button)

and select the unit to be set.

• Every pushing the button, the unit No. changes.

The fan of the selected unit rotates and the

louver swings.

0005

and

0004

∗ If selecting above

of dewing in cooling time.

, there may be fear

„

ꢀ

UNIT No.

1–1

UNIT No.

1–2

UNIT No. 1–4

UNIT No.

1–3

SET

Push

to determine the setup contents.

• When the setup was determined,

mark goes on.

To set continuously the louver lock of the

other unit, repeat operations from 2 but

from 3 to set the other louver lock in the

same unit, respectively.













Determine the capacity restricted value when

pushing the save button ofTIMER SET

• Every pushing the button, the capacity restricted

value can be set at 1% interval in the range

between 100% and 50%.

TEST

Push

to finish the setup.

∗ The setting at shipment is 75%.

Louver

No.

Setup value at saving

0001 to 0005

(Louver fixed position code)

Push ^SETand then push ^TESTto finish the setup.

– 121 –

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11-4. Outdoor Unit

11-4-1. Refrigerant Recovery Control

The “ozone destruction coefficient” of HFC refrigerant is 0 and the

discharge regulation is set as anathermal effect gas.

W804: All OFF (As initial status)

SW801: Push for 1 second.

To this model, a switch which can perform the refrigerant recovery

(pump down) by the outdoor unit is mounted so that it is easy to react

against the environment at reinstalling or rejection time.

[Operation method]

The D805 (Green LED)

flashes.

1) Set the mode of the indoor unit to fan mode.

2) Set all DIP switch SW804 to OFF (Initial status) and then push the

button switch SW801 for approx. 1 second. The cooling operation

starts. (During this time, D805 (Green LED) flashes.)

This operation finishes by 10 minutes.

D800

D801

D802

D803

D804

D805

3) After operation for 3 minutes or more, close valve at liquid side.

4) After recovery of refrigerant, close valve at gas side.

5) Push the button switch SW801 again for approx. 1 second.

The outdoor unit stops.

6) Stop the indoor unit and then turn off the power supply.

11-4-2. Various setting on outdoor unit (Existing piping, Power save, Cooling-only, etc.)

The following settings are available by DIP switch setup and jumper line setup.

Function

Set position

Control contents

Turn the switch to ON when mounting a duct to the discharge

port of the outdoor unit. Add 3 taps to the upper limit value of the

outdoor fan tap.

High static

pressure setup

The operation is performed with

(Max: Upper fan: 890 rpm / Lower fan: 910 rpm (WF)).

In this case, the outdoor noise level may increase.

SW802

Turn the switch to ON when Ø19.1 is used for the existing pipe.

In this case, the heating capacity may lower according to outside

temp. and indoor temp. in heating operation.

High static pressure setup

Existing piping setup

Power save setup

Existing piping

setup

Turn the switch to ON when using the power save function.

The control to lower the compressor frequency (Approx. –10%) is

performed by indoor heat exchanger temp. in heating operation.

Snow-proof fan control

Power save setup

When snow enters from clearance of the fan guard or heat

exchanger into blast path and it is accumulated, the control to

prevent generation of motor lock is validated.

When outside temp. is below 0°C though the compressor stops,

the outdoor fan operates with W5.

Snow-proof fan

control

∗ all are OFF at shipment.

The defrost interval is cut to shorten it than the standard status.

For contents of control and cutting method, refer to

Section 8-2-10. Defrost control.

Defrost time

change

J805, J806

When it is needed to lower the maximum value of the

compressor frequency, cut the jumper line.

Max. frequency at cooling/heating is lowered.

In this case the Max. capacity decreases.

Max. frequency of compressor

Max. frequency

change

J807

J808

RAV-SP1104

RAV-SP1404

Model

COOL

53.4

HEAT

71.4

COOL

64.2

HEAT

90.6

Standard status

When J807 is cut

53.4

64.2

72.0

When using the air conditioner as a cooling-only conditioner, cut

the jumper line.(An air conditioner can be changed to cooling-

only conditioner by “0F” of DN code on the remote controller.)

Cooling-only setup

– 122 –

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11-4-3. Service Support Function (LED Display, Switch Operation)

1. Outline

A various setup and operation check can be performed by DIP switches at 3 positions (SW802, SW803,

SW804) and the pushdown button switches (SW800, SW801) at 2 positions.

Operation part

Part No.

SW800

SW803

SW801

SW804

SW802

Specifications

Pushdown button switch

DIP switch

Operation contents

Exchanges the displayed contents of LED (D800 to D804) on the outdoor

control P.C. board.

Pushdown button switch

DIP switch

Performs the specific operation to check maintenance.

Performs various initial settings. (Refer to 11-4-2.)

DIP switch

Display part

Part No.

Specifications

Operation contents

Indoor/Outdoor communication (Serial communication) signal display

(Receive signal from indoor signal)

D502

Orange LED

Indoor/Outdoor communication (Serial communication) signal display

(Send signal from outdoor signal)

D503

Green LED

Yellow LED

Error display

When all SW803 are OFF, or when any of D800 to D804 goes on, LED

displays that the outdoor controller detects an error.

D800 to D804

When status of SW803 is other than OFF, various indications are displayed.

Power-ON display

When the power of the outdoor unit is turned on, LED goes on.

When SW801 and SW804 operate the specific operation, LED flashes.

D805

Green LED

∗ All LED are colorless when it goes off.

SW804 Specific operation switch

SW801 (Various operations during maintenance check operation)

SW800

LED display select switch

SW803

SW800 (Yellow LED)

SW801 (Yellow LED)

SW802 (Yellow LED)

SW803 (Yellow LED)

SW804 (Yellow LED)

Error display / various display

D800

D801

D802

D803

D804

D805

SW805 (Green LED) : Display while power is ON

D503 (Green LED) : Serial signal (Outdoor → Indoor)

D502 (Orange LED) : Serial signal (Indoor → Outdoor)

SW802 : Selection of various initial settings

– 123 –

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11-4-4. Others

1. Selection of LED display (SW800, SW803 operation)

1) Display selection list

The displayed contents of LED D800 to D804 on the outdoor control P.C. board can be exchanged by

operation of SW803.

Switch

Function / Contents

Refer

Error display (Error generating at present)

Error generating at present is displayed.

Refer to

Page 125.

SW803

This switch goes off when an error does not generate.

Error display (The latest error: Latest error including present)

Refer to

Page 125.

After error status was cleared, the error which generated before

can be confirmed by this setting. (Reconfirmation is available

even if power supply was turned off once.)

SW803

• If an error generates at present, the same contents as those of

error which is generating at present are displayed.

• Only error of TO sensor is not displayed by this setting.

(Confirm it by setting of error which is generating at present.)

Temperature sensor display

Refer to

Page 126.

SW803

The detected value of temperature sensor is displayed.

SW803

TCJ

SW803

Current display

Refer to

Page 126.

SW803

The current value which flows in the outdoor unit is displayed.

Compressor operation frequency display

Refer to

Page 126.

The operation frequency of the compressor is displayed.

PMV opening display

Refer to

Page 126.

The opening of PMV (Pulse Motor Valve) is displayed.

– 124 –

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2) Error display

The error which is generating at present and the latest error (Latest error information including present)

can be confirmed by lighting LED D800 toD804 on the outdoor control P.C. board.

a) When all DIP switch SW803 are OFF, the status of error which is generating at present is displayed.

b) <1> only of DIP switch SW803 is turned on, the error which generated before

(Latest error information including present) is displayed.a)

c) If there is an error, any of LED D800 to D804 goes on. (Display 1)

d) When pushing the pushdown button switch SW800 for approx. 1 second, the display is exchanged.

(Display 2)

e) When pushing SW800 again or after 2 minutes, the status returns to that of Display

(Legend)

Present error

Latest error

SW803

D800 (Yellow)

D801 (Yellow)

D802 (Yellow)

D803 (Yellow)

D804 (Yellow)

D805 (Green)

: Go on,

: Flash

l ^{: Go off,}

Display 1)

Display 2)

Wired remote controller

Error code

Error contents

(Initial display) (SW800 operation)

Normal

—

F04

lllll

Discharge temp. sensor (TD) error

Heat exchanger temp. sensor (TE) error

Heat exchanger temp. sensor (TL) error

Outside temp. sensor (TO) error

Suction temp. sensor (TS) error

Heat sink temp. sensor (TH) error

Heat exchanger sensor (TE, TS) miswiring

EEPROM error

ll ll

F06

¥¥

F06, F07

F08

¥¥¥

¥ ¡

lll l

¥¥ ¡

¡¡

F06, F12

F13, L29

F06, F15

F31, L29

H01

¥ ¥¥ ¡

¥¥¥¥ ¡

¥¥¥¥¥¡

Compressor break down

llll

l lll

lll

ll ll

Compressor lock

H02

¡ ¡¡

ll l

Current detection circuit error

Case thermostat operation

Model unset

H03

¥¥

H04, P04

L10, L29

L29

¥ ¥ ¡

l l l

¥ ¥¥¥¡

¥¥¥¥¥¡

Communication error between MCU

Other error (Compressor disorder, etc.)

Discharge temp. error

¡¡ ¡¡

Error is not determined.

P03

¥¥

lll

l ll

¥¥¥

Power supply error

P04, P05

P07, L29

P15, L29

P19, L29

P04, P20

P22

¥ ¥

Heat sink overheat error

Gas leak detection

¥¥¥¥ ¡

¥¡

4-way valve reverse error

¡¡¡ ¡¡

¥¥

High pressure protective operation

Fan system error

¥ ¥¡

ll l

¥¥ ¥¡

¥ ¥¥¡

Driving element short-circuit

Position detection circuit erro

P26

l l

¥ ¥¥¥¡

P29

* As the error code displayed on the wired remote controller may differ according to type of indoor model, multiple

codes are described.

– 125 –

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3) Sensor, current, compressor operation frequency, PMV opening display

The values detected by the controller, such as temperature sensor or current value are simply confirmed.

(Legend)

D800 (Yellow)

D801 (Yellow)

D802 (Yellow)

D803 (Yellow)

D804 (Yellow)

D805 (Green)

: Go on

l ^{: Go off,}

Temperature sensor (°C)

Compressor

operation

frequency

(rpm)

PMV

opening

(Pulse)

Current

(A)

SW803

Item

setup

SW803

TCJ

SW803

LED

display

Below –25

–25 to –21

–20 to –16

–15 to –11

–10 to – 5

–5 to –1

0 to 4

0 to 0.9

1 to 1.9

0 to 4

5 to 9

0 to 19

20 to 39

40 to 59

60 to 79

80 to 99

100 to 119

120 to 139

140 to 159

160 to 179

180 to 199

200 to 219

220 to 239

240 to 259

260 to 279

280 to 299

300 to 319

320 to 339

340 to 359

360 to 379

380 to 399

400 to 419

420 to 439

440 to 459

460 to 479

480 to 499

500

lllll

llll

2 to 2.9

10 to 14

15 to 19

20 to 24

25 to 29

30 to 34

35 to 39

40 to 44

45 to 49

50 to 54

55 to 59

60 to 64

65 to 69

70 to 74

75 to 79

80 to 84

85 to 89

80 to 84

95 to 99

100 to 104

105 to 109

110 to 114

115 to 119

120 to 124

125 to 129

130 to 134

135 to 139

140 to 144

145 to 149

150 to 154

Over 155

l lll

3 to 3.9

¡¡

lll

4 to 4.9

ll ll

5 to 5.9

¡ ¡

l ll

6 to 6.9

¡¡

¡¡¡

5 to 9

7 to 7.9

10 to 14

15 to 19

20 to 24

25 to 29

30 to 34

35 to 39

40 to 44

45 to 49

50 to 54

55 to 59

60 to 64

65 to 69

70 to 74

75 to 79

80 to 84

85 to 89

90 to 94

95 to 99

100 to 104

105 to 109

110 to 114

115 to 119

Over 120

8 to 8.9

¡ ¡

lll l

9 to 9.9

ll l

¡ ¡ ¡

l l l

¡ ¡

10 to 10.9

11 to 11.9

12 to 12.9

13 to 13.9

14 to 14.9

15 to 15.9

16 to 16.9

17 to 17.9

18 to 18.9

19 to 19.9

20 to 20.9

21 to 21.9

22 to 22.9

23 to 23.9

24 to 24.9

25 to 25.9

26 to 26.9

27 to 27.9

28 to 28.9

29 to 29.9

30 to 30.9

Over 31

¡¡ ¡ ¡

l l

¡¡ ¡

¡ ¡¡ ¡

¡¡¡ ¡

¡¡¡¡ ¡

¡¡

llll

lll

l ll

¡¡

¡ ¡¡

ll l

¡ ¡ ¡¡

l l

¡¡ ¡¡

¡¡¡ ¡¡

lll

¡¡¡

¡ ¡¡¡

l l

¡¡¡

—

¡¡ ¡¡¡

—

¡¡¡¡

¡ ¡¡¡¡

—

¡¡¡¡¡

—

¡¡¡¡¡¡

Sensor error, unconnected

—

* As TD, TL and TH are sensors for high temperature, there is error at normal temperature or below position.

* For current value, the current for the outdoor unit only is displayed.

– 126 –

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4) Specific operation for maintenance check (SW801, SW804)

The following specific operations for the maintenance check are performed by operation of SW801 or

SW804.

a) Select DIP switch SW804. (See table below)

b) Push the pushdown button switch SW801 for approx. 1 second.

c) The following functions start. While each function starts, LED D805 (Green) flashes.

d) When pushing the pushdown button switch SW801 again for approx. 1 second, when selecting DIP

switch SW804 or when the specified time of each function elapsed, each function stops and

LED D805 (Green) returns to the continuous lighting.

SW804

Operation when pushdown button switch SW801 is pushed

Refrigerant recovery operation

The outdoor unit performs cooling operation. The indoor unit does not work by this operation

alone. Therefore operate the fan beforehand. (Refer → 11-4-1. Refrigerant Recovery Control)

SW804

Indoor cooling test run demand

The cooling test run is performed. (→ Note 1)

Indoor heating test run demand

The heating test run is performed. (→ Note 1)

Fan motor forced operation

Drive the fan motor forcedly.

When pushing SW801 again or when 2 minutes elapsed, the

operation returns to the normal control.

(No operation especially)

[NOTE]

Although these operations can

be performed even during

operation, basically perform

operation while the unit stops.

PMV full open operation

Open PMV (Pulse Motor Valve) fully.

When pushing SW801 again or when 2 minutes elapsed, the

operation returns to the normal control.

If performing this operation

during driving the unit, it is

dangerous because the

pressure may change suddenly.

PMV full close operation

Close PMV (Pulse Motor Valve) fully.

When pushing SW801 again or when 2 minutes elapsed, the

operation returns to the normal control.

PMV middle opening operation

Set PMV (Pulse Motor Valve) to middle opening

(250 pulses).

When pushing SW801 again or when 2 minutes elapsed, the

operation returns to the normal control.

Note 1) Indoor cooling test run demand / Indoor heating test run demand

Only when combining with the following indoor unit, cooling/heating operation can be performed from the

outdoor unit.

Test run is available: Indoor unit of 4 series and after (RAV-SM

4UT-E etc.)

∗∗∗

Test run is unavailable: Indoor units other than the above-mentioned indoor units, or indoor units other

than above-mentioned indoor units are included in the twin connection.

Note 2) The forced test run by this setting cannot be cleared on the indoor remote controller. Be sure to clear the

test run by operation of the outdoor unit. (Push SW801 again for 1 second.)

– 127 –

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SW804

Operation when pushdown button switch SW801 is pushed

4-way valve relay operation (For RY700, CN70 check)

Turn on 4-way valve power relay (RY700).

When pushing SW801 again or when 2 minutes elapsed, the

operation returns to the normal control.

SW804

[NOTE]

In case of model adopting the self hold valve

(RAV-SP1104AFE, RAV-SP1404T-E), the coil develops fever.

Therefore do not perform this operation as coil is connected.

SW804

Self-hold valve suction operation (Exchange to heating cycle)

(For RY700 RY701, RY705, CN701 check)

Turn on relay RY700, RY701, RY705.

(CN701 between

This function works for 10 seconds and then is OFF.

and

: Voltage=Approx. +198 to 380V)

„

Self-hold valve separation operation (Exchange to cooling cycle)

Turn on relay RY700.

(CN701 between 1) and 4): Voltage=Approx. –198 to 380V)

This function works for 10 seconds and then is OFF.

SV valve relay operation (For RY702, CN702 check)

Turn on SV valve relay (RY702).

When pushing SW801 again or when 2 minutes elapsed, the

operation returns to the normal control.

* For R0A-AP1125 to 1605HS, the part is not mounted, so do not

operate.

[CAUTION]

SW804

Although these operations can

be performed even during

operation, basically perform

operation while the unit stops.

If performing this operation

during driving the unit, it is

dangerous because the

SW804

Heater output relay operation (For check RY703, CN703 check)

Turn on relay for option heater (RY703).

When pushing SW801 again or when 2 minutes elapsed, the

operation returns to the normal control.

pressure may change suddenly.

Outside output relay operation (RY704, CN704)

Turn on relay for outside output (RY704).

When pushing SW801 again or when 2 minutes elapsed, the

operation returns to the normal control.

(No operation especially)

Relay operation change for outside output

[CAUTION]

Do not use this setting.

– 128 –

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12. ADDRESS SETUP

12-1. Address Setup

When an outdoor unit and an indoor unit are connected, or when an outdoor unit is connected to each indoor

unit respectively in the group operation even if multiple refrigerant lines are provided, the automatic address

setup completes with power-ON of the outdoor unit.The operation of the remote controller is not accepted while

automatic address works. (Approx. 4 to 5 minutes)

Setup of line address of outdoor unit,

indoor unit address, and group address

Completion of cabling work

Do you arbitrarily set the

indoor unit address?

YES

(MANUAL)

Is refrigerant line 1 line?

YES

Is group control performed?

YES

(To AUTO address mode)

Do you change setting after

automatic setting at the first time?

YES

Connect one remote controller with

one indoor unit (1 : 1) tentatively with

communication cable.

Turn on power of outdoor unit.

After completion of address

setup, change is to arbitral

address/group manually.

Setup of automatic

address finishes within

4 to 5 minutes.

(

)

Set to all indoor units one by one.

(

)

END

• When the following addresses are not stored in the neutral memory (IC10) on the indoor P.C. board, a test run

operation cannot be performed. (Unfixed data at shipment from factory)

Item code Data at shipment

Setup data range

0001 (No. 1 unit) to 0030 (No. 30 unit)

Line

address

0099

Indoor unit

address

0001 (No. 1 unit) to 0030 (No. 30 unit)

Max. value of indoor units in the identical refrigerant line

0000 : Individual (Indoor units which are not controlled in a group)

0001 : Master unit (1 indoor unit in group control)

0002 : Sub unit (Indoor units other than master unit in group control)

Group

address

0099

– 129 –

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12-2. Address Setup & Group Control

Indoor unit No. : N - n = Outdoor unit line address N (Max. 30) - Indoor unit address n (Max. 64)

Group address : 0 = Single (Not group control)

1 = Master unit in group control

2 = Sub unit in group control

Master unit (= 1) : The representative of multiple indoor units in group operation sends/receives signals to/from

the remote controllers and sub indoor units. (* It has no relation with an indoor unit which

communicates serially with the outdoor units.)

The operation mode and setup temperature range are displayed on the remote controller

LCD. (Except air direction adjustment of louver)

Sub unit (= 2)

: Indoor units other than master unit in group operation

Basically, sub units do not send/receive signals to/from the remote controllers.

(Except errors and response to demand of service data)

Master unit (Representative unit) (Master Twin)

: This unit communicates with the indoor unit (follower) which serial-communicates with the

outdoor units and sends/receives signal (Command from compressor) to/from the outdoor

units as the representative of the cycle control in the indoor units of the identical line address

within the minimum unit which configures one of the refrigerating cycles of Twin.

Follower unit (Subordinate unit) (Follower Twin)

: Indoor units excluding the master unit in Twin

This unit communicates with (Master) indoor unit in the identical line address and performs

control synchronized with (Master) indoor unit.

This unit does not perform the signal send/receive operation with the outdoor units. : No

judgment for serial signal error.

12-2-1. System configuration

1. Single

2. Twin

Outdoor

1-1

Individual

2-1

Sub

1-1

Sub

Indoor

(Master/Sub)

Remote

controller

3. Single group operation

2-1

Sub

1-1

Sub

4-1

Master

3-1

Sub

8-1

Sub

– 130 –

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12-2-2. Automatic address example from unset address (No miscabling)

1. Standard (One outdoor unit)

1) Single

2) Gr operation

(Multiple outdoor units = Miltiple indoor units only with serial

communication)

1-1

Individual

2-1

Sub

1-1

Sub

4-1

Master

8-1

Sub

(Master/Sub)

Max. 8 units

X Only turning on source power supply (Automatic completion) X

– 131 –

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12-3. Address Setup

In case that addresses of the indoor units will be determined prior to piping work after cabling work

(Manual setting from remote controller)

• Set an indoor unit per a remote controller.

(Example of 2-lines cabling)

(Real line: Cabling, Broken line: Refrigerant pipe)

• Turn on power supply.

OUT

SET

TEST

Push

buttons simultaneously

for 4 seconds or more.

(← Line address)

Using the temperature setup

buttons,

set 12 to the item code.

Using timer time

buttons, set the line address.

SET

Push

button. (OK when display goes on.)

(← Indoor unit address)

Using the temperature setup

set 13 to the item code.

buttons,

Line address

Indoor unit address

Group address

Using timer time

buttons, set 1 to the line address.

SET

Push

button. (OK when display goes on.)

For the above example, perform setting by connecting

singly the wired remote controller without remote

controller inter-unit cable.

(← Group address)

Using the temperature setup

set 14 to the item code.

buttons,

Group address

Individual : 0000

Master unit : 0001

Using timer time

0001 to Master unit, and 0002 to sub unit.

buttons, set 0000 to Individual,

In case of group control

Sub unit

: 0002

SET

Push

button. (OK when display goes on.)

TEST

Push

button.

Setup completes. (The status returns to the usual stop status.)

TEMP.

ON / OFF

TIMER SET

TIME

FAN

SAVE

MODE

VENT

2, 5, 8

3, 6, 9

END 11

FILTER

RESET TEST

SET

SWING/FIX

UNIT LOUVER

4, 7, 10

END

1 2 3 4 5 6 7 8 9 10 11

– 132 –

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n Confirmation of indoor unit No. position

1. To know the indoor unit addresses though position of the indoor unit body is recognized

• In case of individual operation (Wired remote controller : indoor unit = 1 : 1)

(Follow to the procedure during operation)

ON / OFF

Push

button if the unit stops.

UNIT

Push

button.

Unit No. 1-1 is displayed on LCD.

TEMP.

ON / OFF

(It disappears after several seconds.)

TIMER SET

TIME

FAN

SAVE

MODE

VENT

The displayed unit No. indicate line address and

indoor unit address.

Operation

FILTER

RESET TEST

SET

SWING/FIX

UNIT LOUVER

(When other indoor units are connected to the

identical remote controller (Group control unit), other

UNIT

unit numbers are also displayed every pushing

button.

END

1 2

2. To know the position of indoor unit body by address

• To confirm the unit No. in the group control

(Follow to the procedure during operation) (in this procedure, the indoor units in group control stop.)

The indoor unit numbers in the group control are

successively displayed, and fan, louver, and drain pump

of the corresponding indoor unit are turned on.

(Follow to the procedure during operation)

VENT

TEST

Push

4 seconds or more.

• Unit No.

and

buttons simultaneously for

TEMP.

ON / OFF

TIMER SET

TIME

FAN

SAVE

MODE

VENT

is displayed.

• Fans and louvers of all the indoor units in the

group control operate.

FILTER

RESET TEST

SET

SWING/FIX

UNIT LOUVER

UNIT

Every pushing

button, the unit numbers in

the group control are successively displayed.

• The unit No. displayed at the first time indicates the

master unit address.

• Fan and louver of the selected indoor unit only

operate.

END

1 2 3

TEST

Push

button to finish the procedure.

All the indoor units in the group control stop.

– 133 –

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Aiming in environmental preservation, it is strictly recommended to clean and maintain the indoor/outdoor units

of the operating air conditioning system regularly to secure effective operation of the air conditioner.

It is also recommended to maintain the units once a year regularly when operating the air conditioner for a long

time.

Check periodically signs of rust or scratches, etc. on coating of the outdoor units.

Repair the defective position or apply the rust resisting paint if necessary.

If an indoor unit operates for approx. 8 hours or more per day, usually it is necessary to clean the indoor/outdoor

units once three months at least.

These cleaning and maintenance should be carried out by a qualified dealer.

Although the customer has to pay the charge for the maintenance, the life of the unit can be prolonged.

Failure to clean the indoor/outdoor units regularly will cause shortage of capacity, freezing, water leakage or

trouble on the compressor.

Object

Part name

Contents of check

Contents of maintenance

Indoor

Outdoor

Heat exchanger

Fan motor

• Blocking with dust, damage check

• Audibility for sound

• Clean it when blocking is found.

• When abnormal sound is heard

• Clean with water if dirty

• Replace if any breakage

—

Filter

• Visual check for dirt and breakage

• Visual check for swing and balance

• Check adhesion of dust and external

appearance.

• Replace fan when swinging or

balance is remarkably poor.

• If a large dust adheres, clean it with

brush or water.

Fan

Suction/

Discharge grille

• Repair or replace it if deformation or

damage is found.

—

• Visual check for dirt and scratch

• Check blocking by dust and dirt of drain

water.

—

Drain pan

• Clean drain pan, Inclination check

• Cleaning/Coating with repair painting

—

Face panel, Louver

• Check dirt and scratch.

• Check rust and pealing of insulator

• Check pealing and floating of coating film

External appearance

• Coating with repair painting

– 134 –

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13. DETACHMENTS

13-1. Indoor Unit

13-1-1. 4-Way Air Discharge CassetteType

RAV-SM564UT-E, RAV-SM804UT-E, RAV-SM1104UT-E, RAV-SM1404UT-E

No. Part name

Procedure

Remarks

Suction grille

Knobs of the

suction grille hook

XCAUTIONX

Be sure to put on the gloves at disassembling

work; otherwise an injury will be caused by a

part, etc.

Adjust

corner cap

Ceiling panel

Hook for

1. Detachment

1) Stop operation of the air conditioner and

then turn off switch of the breaker.

falling-preventive strap

2) Slide the 2 knobs of the suction grille

inward and then hang down the suction

grille.

3) Remove a strap connecting the panel

and the suction grille and then remove

the suction grille.

Hole for

ceiling panel hook

2. Attachment

1) Hook the suction grille to the panel.

2) Attach strap of the suction grille to the

panel as before.

3) Close the suction grille, slide the knobs

outward and then fix the panel.

Hinge

Electric parts 1. Detachment

‚

Bell mouth pin

Claw of

electric parts box

cover

1) Carry out work of item 1. of

2) Remove the fixing screw A which fixes

the electric parts cover and loosen the

fixing screw B.

3) Pull down the electric parts cover,

remove pin of the bell mouth and then

slide it to the arrow direction in order to

open the claws and the electric parts box

cover.

Potbelly hole

(Dharma doll hole)

Fixing screw B

Sliding ddirecction

Claw of eelectric

parts box cover

Fixing screw BA

2. Attachment

1) Close the electric parts cover and slide it,

hook claw of the electric parts box, claw

of the electric parts box cover and the

Dharma doll hole, and then insert pin of

the bell mouth into hole of the electric

parts box cover.

Electric parts box cover

2) Tighten the fixing screws A and B and

then fix the electric parts box cover.

3) Following to work of item 2 of , mount

the suction grille as before.

– 135 –

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No.

Part name

Procedure

Remarks

Electric parts cover

(Continued)

‚

Adjust corner cap

1. Detachment

Adjust corner cap

1) Pull knob of the adjust corner cap to

the arrow direction, remove strap of

the adjust corner cap from pin of

the panel and then remove all the

4 corners of the cap.

Knob

NOTE :

The knob is provided to only one side.

Be sure to remove the cap of the

knob side at first.

Pulling direction

2. Attachment

1) Hook strap of the adjust corner cap

securely to pin of the ceiling panel.

2) Insert claw of the adjust corner cap

into the square hole of the panel.

(2 positions)

3) Push claws of the adjust corner cap

into the positions indicated with

arrow marks so that they fit in

3 positions.

Strap of

adjust corner cap

Claws

(3 positions)

Claw

Square hole

Push into positions with arrow marks

– 136 –

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No. Part name

Ceiling panel 1. Detachment

Procedure

Remarks

„

Clamp

1) Carry out works of item 1 of

and item 1

‚

Louver motor wiring

2) Remove the flap connector

(CN510, White, 20P) connected to the

control P.C. board and then remove the

lead wire from the clamp.

NOTE :

CN510

Unlock the lock of the housing part and

then remove the connector.

Square hole of indoor unit

3) Loosen the panel fixing 4 screws.

4) Slide the panel fixing brackets

(4 positions) outward.

5) Push the tentative bracket outward and

then remove the ceiling panel.

2. Attachment

Electric parts box

Panel fixing screw

1) Insert the tentative brackets (2 positions)

of the ceiling panel into square holes of

the indoor unit and then hook the panel

tentatively.

Louver motor wiring

NOTE :

The ceiling panel has the directional

properties against the indoor unit.

Tentative bracket

Ceiling panel

Direct the louver motor wire to the electric

parts box side of the indoor unit.

Square hole of indoor unit

2) Pass the head of the panel fixing screw

through hole of the panel fixing bracket

and then slide the panel fixing bracket

inward.

Push iin case

of removing

3) Tighten in the panel fixing screw to fix the

ceiling panel.

4) Following to work of item 2 of , attach

the adjust corner cap as before.

Tentative bracket

5) Connect the louver connector

(CN510, White, 20P) as before and then

fix the lead wire with clamp.

Square hole of indoor unit

6) Following to work of item 2 of , mount

‚

the electric parts box cover and the

suction grille as before.

Panel fixing screw

Inner side

Panel fixing bracket

Outer side

Sliding direction

– 137 –

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No. Part name

Procedure

Remarks

Control

P.C. board

1. Detachment

ꢀ

Clamp

1) Carry out work of item 1 of

‚

2) Remove connectors which are connected

from the control P.C. board to the other

parts and then remove wiring from the

clamp.

CN510 : Louver motor (20P, White)

CN34 : Float switch (3P, Red)

CN504 : Drain pump (2P, White)

CN101 : TC sensor (2P, Black)

CN102 : TCJ sensor (2P, Red)

CN104 : Room temp. Sensor (2P, Orange)

CN333 : Fan motor power supply

(5P, White)

Card edge spacer

CN334 : Fan motor position detection

(3P, White)

NOTE :

Unlock the lock of the housing part and then

remove the connector.

3) Unlock the locks of the card edge spacer

(6 positions) and then remove the control

P.C. board.

2. Attachment

1) Fix the control P.C. board to the card edge

spacer (6 positions)

2) Connect the connector removed in item 1

as before and then fix the wiring with the

clamp.

3) Following to work of item 2 of , mount

the electric parts box cover and the

suction grille as before.

– 138 –

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No. Part name

Drain cap

Procedure

Remarks

1. Detachment

†

Drain cap (outside)

1) Carry out work of item 1 of

2) Loosen screws (3 positions) fixing the drain

cap (outside) and then turn the drain cap to

the arrow mark direction to remove it.

OPEN

NOTE :

The drain cap is hung down because a strap

is attached to it (outside).

3) Loosen the cap by turn the drain cap

(inside) for approx. 1 turn to OPEN →

direction and then drain the drain water

accumulated in the drain pan.

Strap

Drain cap fixing screws

NOTE :

Be sure to catch drain water using a bucket,

etc. when loosening the drain cap.

Drain cap (inside)

The insulating materials are adhered to the

drain cap (outside) and opening part of the

drain pan; be careful that they are not come off.

If they are come off, stick them as before

using double-faces tape, etc.

4) Turn the drain cap once again to OPEN

→ direction to remove it.

OPEN

2. Attachment

Drain pan

mark

Drain cap

mark

1) Insert the drain cap (inside), turn it to

CLOSE → direction until the position

where “Clashed sound” is heard and it

cannot be turned more over

(Position where

matches with

mark of the drain pan

mark of the drain cap

(inside)) and then fix it.

NOTE :

When attaching the drain cap (inside),

remove dirt attached to the packing.

And tighten in it noting so that the cap is not

slantingly set.

If attaching the drain cap as dust or dirt is

attached or the cap is set slantingly, water

leakage is caused.

2) Turn the drain cap (outside) to → direction

and then attach it using the fixing screw as

original.

3) Following to work of item 2 of , mount

the suction grille as before.

– 139 –

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No. Part name

Fan motor

Procedure

Remarks

1. Detachment

‡

Fixing screw A

1) Carry out work of item 1 of

‚

2) Remove connectors which are connected

from the control P.C. board to the other

parts and then remove each wiring from

the clamp.

CN510 : Louver motor (20P, White)

CN34 : Float switch (3P, Red)

CN504 : Drain pump (2P, White)

CN101 : TC sensor (2P, Black)

CN102 : TCJ sensor (2P, Red)

CN104 : Room temp. Sensor (2P, Orange)

CN333 : Fan motor power supply

(5P, White)

Fixing screw B

Electric parts box

Clamp

CN334 : Fan motor position detection

(3P, White)

NOTE :

Unlock the lock of the housing part and then

remove the connector.

Fan motor lead

Bell mouth

TC sensor

Nut cap

TCJ sensor

3) Remove the fixing screws A and B, and

then remove the electric parts box.

(Fixing screw A: Ø4 × 10, 3 pcs,

Fixing screw B: Ø4 × 8, 1 pc.)

4) Remove the fan motor lead, TC sensor

and TCJ sensor from clamp of the bell

mouth.

5) Remove the fixing screws and then

remove the bell mouth. (Ø4 × 10, 8 pcs.)

6) Remove the fixing screws and then

remove the nut cap. (Ø4 × 10, 2 pcs.)

7) Remove the fixing nut and then remove

the turbo fan. (M8 nut with flange, 1 pc.)

8) Remove the fixing screws and then

remove the motor lead holding bracket.

(Ø4 × 8, 2 pcs.)

9) Cut the bundling band and then remove it

from the clamp.

Fixing screw

Turbo fan

10) Remove the fixing nut and then remove

the fan motor. (Ø6 nut, 3 pcs.)

2. Attachment

1) Fix the parts as before in order of fan

motor → motor lead holding bracket →

turbo fan → nut cap → bell mouth.

NOTE :

Fix the motor lead to the clamp without

slack as before using bundling band.

When fixing the turbo fan, be sure to match

the D-cut of the fan boss with D-cut of the

motor shaft.

M8 nut with flange

Using a torque wrench, fix the turbo fan and

+0.5

–0.2

tighten it to 5.4

Nm.

– 140 –

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No. Part name

Procedure

Remarks

Fan motor

(Continued)

2. Attachment

‡

M6 nut

2) Fix the fan motor lead, TC sensor and TCJ

sensor with the clamp of the bell mouth.

3) Mount the electric parts box with the fixing

screws A and B.

(Ø4 × 10, 3 pcs. Ø4 × 8, 1 pc.)

4) Connect the connector removed in item 1

as before and then fix wiring with the

clamp.

Fan motor

Motorr lead

holdingg bracket

5) Following to work of item 2 of , mount

the electric parts box cover and the

suction grille as before.

Fixing screws (Ø4 × 8)

Clamp

Fan motor lead

– 141 –

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No. Part name

Drain pump 1. Detachment

Procedure

Remarks

Fixing screw A

1) Carry out works of item 1 of

and item

‚

1 of

†

2) Remove the drain pump connector

(CN504, White, 2P) connected to the

control P.C. board and then remove the

lead wire from the clamp.

Drain port

3) Remove the fixing screws and then

remove the drain pump. (Ø4 × 10, 3 pcs.)

4) As shown in the right figure, first pull out

the connecting part of the drain pump and

the drain hose from the drain port and

then take out the drain pump.

5) Set direction of the knob of the hose band

downward, slide it from the pump connecting

part to the hose side and then remove the

drain hose from the drain pump.

Drain pump

6) Pass the connector of the drain pump lead

wire through the wiring taking-out port and

then take out the drain pump.

CN504

Drainn pump

lead wire

2. Attachment

1) Enter your hand into the drain port and

pass the connector of the drain pump lead

wire through the wiring taking-out port.

2) Connect the drain hose to the drain pump

as before.

NOTE :

Wiring taking-out port

Drain pump

Insert the drain hose up to the end of the

drain pump connecting part, apply band to

the white mark position of the hose and then

set the band knob upward.

Clamp

Drain hose

3) Return the drain pump to the indoor unit

and then mount it as before using the

fixing screws. (Ø4 × 10, 3 pcs.)

4) Connect the drain pump connector

(CN504, White, 2P) to the control P.C.

board and then fix it as before with the

clamp.

Pump connecting part

5) Following to words of item 2 of

and item

†

2 of , mount the drain cap, the electric

‚

parts box cover and the suction grille as

before.

Slide to drain hose side.

Hose band

– 142 –

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No. Part name

Float switch 1. Detachment

Procedure

Remarks

‰

assembly

1) Carry out works of item 1 of

from 1) to 5).

and works

‡

Floatt swittcch asseembly

2) Remove the fixing screw and then remove

the float switch assembly. (Ø4 × 25, 1 pc.)

2. Attachment

1) Mount the float switch assembly as before

with the fixing screw.

Fixing scrrew (ØØ44 × 25)

NOTE :

Hole of float switch assembly

When mounting, match hole of the float switch

assembly with projection of the drain pan.

2) Mount the bell mouth as before.

(Ø4 × 10, 8 pcs.)

3) Following to works of item 2 of

and

‡

works from 2) to 5), attach the parts as

before.

Projeectionn of draain pan

Drain pan

1. Detachment

1) Carry out works of item 1 of , item 1 of

„

, item 1 of

and works from 2 to 5).

†

‡

2) Remove the fixing screws to remove the

drain pan. (Ø4 ×10, 4 pcs.)

2. Attachment

1) Fix parts as before in order of drain cap →

drain pan → bell mouth.

2) Following to works of item 2 of

and

‡

works from 2) to 5), attach parts as before.

Fixing screws (Ø4 ×10)

– 143 –

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No. Part name

Procedure

Remarks

Heat

exchanger

1. Detachment

1) Recover the refrigerant gas.

2) Carry out work of item 1 of

3) Remove refrigerant pipe at indoor unit side.

4) Remove the fixing screws and then

remove the piping cover. (Ø4 ×10, 3 pcs.)

5) Remove the drain hose from the drain

pump and remove the fixing screws to

remove the drain pump stand.

(Ø4 ×8, 3 pcs.)

Fixing screws (Ø4 ×10)

6) While pushing the heat exchanger, remove

the fixing band, fixing screws and the heat

exchanger. (Ø4 ×8, 3 pcs.)

Piping cover

2. Attachment

Fixing screws

(Ø4 ×10)

1) Mount the heat exchanger with the fixing

band and the fixing screws. (Ø4 ×8, 3 pcs.)

2) Fix the parts as before in order of drain

pump stand → piping cover.

3) Connect the refrigerant pipe as before and

then apply vacuuming.

Drain puump stand

4) Following to work of item 2 of , attach

the parts as before.

Fixing screws

(Ø4 ×10)

Fixing band

Fixing screw

Fixing band

Heat exchanger

– 144 –

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13-2. Outdoor Unit

RAV-SP1104AT-E, RAV-SP1404AT-E / RAV-SP1104ATZ-E, RAV-SP1404ATZ-E /

RAV-SP1104ATZG-E, RAV-SP1404ATZG-E

No. Part name

Procedure

Remarks

Common

procedure

Front panel

XCAUTIONX

Never forget to put on the gloves at working

time; otherwise an injury will be caused by the

parts, etc.

1. Detachment

1) Stop operation of the air conditioner and

then turn off switch of the breaker.

2) Remove the front panel.

(Hexagonal screw Ø4 × 10, 2 pcs.)

• Remove the screws and then remove the

front panel by pulling it downward.

3) Remove the power supply cable and the

indoor/outdoor connecting wire from the

cord clamp and the terminal.

4) Remove the top plate.

(Hexagonal screw Ø4 × 10, 5 pcs.)

2. Attachment

Top plate

1) Attach the top plate.

(Hexagonal screw Ø4 × 10, 5 pcs.)

2) Connect the power supply cable and the

indoor/outdoor connecting wire to the

terminal and then fix them with the cord

clamp.

XREQUIREMENTX

For the power supply cable and the indoor/

outdoor connecting wire, be sure fix them

using the bundling band on the market along

the crossover pipe so that they do not come to

contact with the compressor, valve at gas side,

pipe at gas side and discharge pipe.

3) Attach the front panel.

(Hexagonal screw Ø4 × 10, 2 pcs.)

– 145 –

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No. Part name

Procedure

Remarks

Discharge

port cabinet

1. Detachment

‚

Motor base Discharge port cabinet

1) Carry out work of 1 of

Heat exchanger

Partition board

2) Remove screws for the discharge port

cabinet and the partition board.

(ST1T Ø4 × 8, 4 pcs.)

3) Remove screws for the discharge port

cabinet and the bottom plate.

(Hexagonal screw Ø4 × 10, 2 pcs.)

4) Remove screws for the discharge cabinet

and the motor base.

(ST1T Ø4 × 8, 2 pcs.)

5) Remove screw for the discharge cabinet

and the heat exchanger.

(ST1T Ø4 × 8, 1 pc.)

6) Remove screws for the discharge port

cabinet and the fin guard.

Fin guard

(Hexagonal screw Ø4 × 10, 2 pcs.)

Side cabinet

1) Carry out work of 1 of

Inverter assembly

Side cabinet

2) Remove the screws which fix the inverter

assembly and the side cabinet.

(ST1T Ø4 × 8, 2 pcs.)

3) Remove the screws for the side cabinet

and the valve fixing plate.

(ST1T Ø4 × 8, 2 pcs.)

4) Remove screws for the side cabinet and

the piping panel (Rear).

(Hexagonal screw Ø4 × 10, 2 pcs.)

5) Remove screw for the side cabinet and the

bottom plate.

(Hexagonal screw Ø4 × 10, 1 pc.)

6) Remove screws for the side cabinet and

the fin guard (Heat exchanger).

(Hexagonal screw Ø4 × 10, 5 pcs.)

Valve fixing plate

– 146 –

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No.

Part name

Procedure

Remarks

Replacement of 1. Control P.C. board

„

Control P.C. board Upper fan motor

electric parts

1) Carry out work of 1 of

Compressor

Reactor lead

case thermo.

WARNINGX

Never disassemble the inverter for

1 minute after power supply has been

turned off because an electric shock may

be caused.

Lower

fan motor

Compressor lead

2) Remove the connectors connected to

the control P.C. board. (Indoor power

supply, Temperature sensor, PMV coil,

4-way valve coil, Compressor case

thermo, Fan motor)

Temperature

sensor

Earth wire

• Unlock the lock of the housing part

and then remove the connectors.

4-way valve coil

3) Remove the lead wires connected to

the control P.C. board.

PMV coil

Indoor power supply

Element fixing screws

Compressor lead U: CN200 Red

V: CN201 White

P.C. board

fixing screw (9 positions)

W: CN202 Black

Reactor cord

CN05 White

CN06 White

4) Remove the earth wire from the control

P.C. board.

(Trust B tight screw Ø4 × 6, 1 pc.)

5) Remove the fixing screws of the control

P.C. board. (Screw with collar for fixing

element Ø3 × 16, 9 pcs. Pan S tight

screw for fixing board Ø3 × 20, 1 pc.)

6) Remove the control P.C. board.

(Supporter: 5 positions)

NOTE :

Be careful to take out because there is

sealing material for the heat sink.

Insulating sheet

Sealing material

Control P.C. board

7) Replace the control P.C. board with a

new one.

NOTE :

• Be sure not to confuse for Compressor

lead V (CN201 White), Reactor lead

CN05 and CN06.

• Be sure not to come-off of the

insulating sheet.

– 147 –

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No.

Part name

Procedure

Remarks

Replacement of 2. Reactor

„

Bundling band

(Compressor lead, Reactor lead)

electric parts

1) Carry out work of 1 of

(Continued)

2) Remove the reactor lead connected to

the control P.C. board.

Control P.C. board

Reactor lead

CN05 White, CN06 White

3) Cut the bundling band which bundled

the compressor lead and fan motor

lead.

4) Remove the reactor.

(Trust B tight screw, Ø4 × 6, 2 pcs.)

5) Replace the reactor with a new one.

NOTE :

Be sure to bundle the removed bundling

band with the bundling band on the

market.

Be careful so that the fan motor lead

does not come to contact with the

reactor body.

Reactor lead

Reactor body

Bundling band

(Compressor lead, Reactor lead)

Fan motor lead

Bundling band

(Fan motor lead, Reactor lead)

– 148 –

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No. Part name

Procedure

Remarks

Fan motor

1) Carry out works of item 1 of

and work of

‚

ꢀ

2) Remove the flange nut fixing the fan motor

and the propeller fan.

Propelller fan

Looseened by

turning clockwise

• The flange nut is loosened by turning it

clockwise. (When tightening it, turn it

counterclockwise.)

3) Remove the propeller fan.

4) Remove the connector for the fan motor from

the inverter. (Remove the ferrite core of the

lower fan motor because it is used.)

Flange nut

5) Remove the fan motor lead from the fan

motor lead fixed rubber of the penetrated part

of the partition board.

Propeller fan

6) Remove the fixing screws (4 pieces each)

while supporting the fan motor so that it does

not fall down.

* Cautions for assembling of fan motor

• Tighten the flange nut with 4.95N•m

(50kgf•cm).

• Adjust length of the fan motor lead wire at

the fan motor lead fixed rubber so that the

fan motor lead is not slackened; otherwise

the fan motor lead may come to contact

with the propeller fan.

Fan motor

Connector of

upper fan motor

Attach the fan motor lead fixed rubber to

the partition board so that the projection is

set at the refrigerating cycle side.

Connector of

lower fan motor

• Be sure so that the rector body does not

contact with the fan motor lead.

• Be sure to bundle the removed bundling

band with the bundling band on the

market.

Ferrite core of

lower fan motor

• Necessarily attach the ferrite core of the

lower fan motor again.

(Fix it with bundling band on the market.)

XREQUIREMENTX

Fan motor lead

fixed rubber

Be sure to fix the fan motor lead to the motor

base using the metal band of the motor base

so that the fan motor lead does not come to

contact with the propeller fan.

Projection/Refrigerating

cycle side

Fan mottor lead

fixedd rubber

Projection/Refrigerating

cycle side

Fan motor

– 149 –

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No. Part name

Procedure

Remarks

Compressor 1. Removal of defective compressor

†

Piping panel (Front)

Compressor

lead

1) Recover the refrigerant gas.

2) Carry out work of item 1 of

and work of

3) Remove the piping panel (Front).

Remove the piping panel (Front) and

screws of the bottom plate.

(Hexagonal screw Ø4 × 10, 2 pcs.)

Piping panel (Rear)

Pipe cover

Bundling band

(For tthermmal proof)

Remove screw of the piping panel (Front)

and the piping panel (Rear).

(Hexagonal screw Ø4 × 10, 1 pc.)

Compresssor lead

TD sensor

4) Remove the piping panel (Rear).

Remove the piping panel (Rear) and

screws of the bottom plate.

(Hexagonal screw Ø4 × 10, 2 pcs.)

Compressor case thermo.

5) Remove the sound-insulation plate.

(Upper, rolling in, rolling out)

Control PP.C. bboard

6) Remove the terminal cover of the com-

pressor and then remove the compressor

lead and the compressor case thermo.

7) Remove TD sensor which is fixed to the

discharge pipe.

8) Remove the compressor lead.

(Leave the ferrite core as it is attached to

the electric parts box.)

Compresssor lead

Control P.C. board U : CN200 Red

V : CN201 White

Compresssor lead

W: CN202 Black

9) Using a burner, remove the discharge pipe

and the suction pipe which are connected

to the compressor.

WARNINGX

In case of removing the piping by broiling the

welded part with a burner, if there is oil in the

pipe, it may burst into flames at the moment

that wax melted, so take sufficient care.

Ferritte core

Remove

(Discharrge pipe)

CAUTION :

Note so that the flame does not catch the

4-way valve and PMV.

(A malfunction may be caused.)

Remove

(Suctioon pipe)

10) Pull off the discharge pipe and the suction

pipe of the refrigerating cycle upward.

11) Remove the compressor nuts which fix the

compressor to the bottom plate. (3 pcs.)

12) Pull out the compressor toward you.

CAUTION :

As weight of the compressor is 20kg or

more, handle it by 2 workers.

Compresssor nuts

(3 pcs.)

– 150 –

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No. Part name

Procedure

Remarks

Compressor 2. Mounting of compressor

†

Wrap the ferrite core with the compressor lead wire

for 4 times.

Compressor

lead

1) Mount the compressor in the reverse

procedure for removal.

Compressor lead

(Continued)

NOTE :

• After replacement of the compressor, be

sure to replace the compressor lead.

(Repair part code of compressor lead:

43160591)

0 to 50

In this time, wrap the ferrite core with the

compressor lead wire by 4 times.

• As shown in the right figure, mount the

sound-insulation plate (rolling in, rolling

out) by passing through it between the

compressor and the piping, and between

the piping and the partition board.

Ferrite core

0 to 50

(Compressor lead positioning standard)

Put the end of sound-

insulation plate

(rolling out) on the other

end at this position.

Pass through sound-

insulation plate

(rolling out) between

suction pipe and

header pipe.

• Fix TD sensor by the bundling band for

heat-proof on the market via the pipe

cover so that TD sensor does not directly

come to contact with the discharge pipe.

Header pipe

Suction pipe

3. Vacuuming

1) Connect the vacuum pump to the charge

port and the check joint of the gas pipe

valve and then drive the vacuum pump.

2) Carry out vacuuming until the vacuum low

pressure gauge indicates 1 (mmHg).

Discharge pipe

Pass through sound-insulation plate (rolling in)

between compressor and discharge pipe,

suction pipe and then put the end of sound-

insulation plate on the other end at this position.

NOTE :

Before vacuuming, open PMV fully.

If PMV is closed, vacuum may be impossible

between liquid pipe valve and PMV of the

outdoor unit.

There should be no clearance between sound-

insulation plate (upper) and sound-insulation plate

(rolling out).

Sound-insulation plate

(upper)

Forced full-opening method of PMV

• Turn on the leakage breaker.

• Turn on 1 and 3 of Dip switch SW804 on the

control P.C. board of the outdoor unit.

Cultural rivet

• Keep pushing SW801 on the control P.C. board

of the outdoor unit for 1 second or more.

• After pushing SW801 for 1 second or more,

turn off the leakage breaker within 2 minutes.

Insert one side

under cultural rivet.

4. Refrigerant charge

Sound-insulation plate

(rolling out)

1) Add the refrigerant amount determined by

the pipe length from the charge port of the

valve.

SW801

SW804

– 151 –

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No. Part name

Procedure

Remarks

PMV coil

1. Detachment

‡

Concave part

PMV main unit

1) Carry out work of item 1 of

2) Turn the coil while pulling upward and then

remove the coil from the PMV main unit.

2. Attachment

1) Surely match the positioning projection of

the coil with the concave part of PMV main

unit and then fix it.

Positioning projection

PMV coil

Fan guard

1. Detachment

Fan guard

Bell mouth

Discharge

port cabinet

1) Carry out works of item 1 of

and work

‚

XREQUIREMENTX

To prevent scratch on the product, carry out

the work on cardboard, cloth, etc.

2) Remove the discharge port cabinet and

then put on it so that the fan guard side

directs downward.

3) Remove the hooking claws (8 positions) of

the fan guard.

Hooking claw

2. Attachment

1) Push the hooking claws (8 positions) with

hands from the front side to fix the claws.

XREQUIREMENTX

Check that all the hooking claws are fixed at

the specified positions.

– 152 –

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14. EXPLODED VIEWS AND PARTS LIST

14-1. Indoor Unit

14-1-1. 4-Way Air Discharge CassetteType

RAV-SM564UT-E, RAV-SM804UT-E, RAV-SM1104UT-E, RAV-SM1404UT-E

223, 238 226

227

246

230

225

212

228

201

202

229

239

231

234

204, 205

243

237

215

206

214, 235

242

224

219, 220, 221,

222, 240, 241

208

244

247

232

207 233 245 236 218

216, 217

211

213

203

210

209

– 153 –

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Model Name RAV-SM

Location

No.

Part No.

Description

564UT-E

804UT-E

1104UT-E

1404UT-E

201

202

203

204

205

206

207

208

209

210

211

212

213

214

215

216

217

218

219

220

221

222

223

224

225

226

227

228

229

230

231

232

233

234

235

236

237

238

239

240

241

242

243

244

245

246

247

43120247 Fan Ass’y, Turbo, ABS

43120248 Fan Ass’y, Turbo, ABS

43166011 Remote Controller, SX-A4EE

4314J399 Refrigeration Cycle Ass’y

4314J400 Refrigeration Cycle Ass’y

4314J401 Refrigeration Cycle Ass’y

43122110 Bell Mouth, ABS

43172202 Pan Ass’y, Drain

43166004 Remote Controller, SX-A11JE2

43166005 Remote Controller, EX-W2JE2

43166006 Remote Controller, WH-H1JE2

43170244 Hose, Drain, 25A

43179144 LID, Inside

43151290 Switch, Float, FS-0218-102

43079249 Band, Hose

43163057 Clamp, Down, ABS

43163058 Clamp, Up, ABS

43089147 Clamp, Wire, NYLON6

43047688 Nut, Flare, 1/2 IN, RoHs

43149352 Nut, Flare, 5/8 IN

43149353 Socket, 1/2”

43149354 Socket, 5/8”

43139137 Rubber, Cushion

43122099 Plate, Wind

43197197 Screw, Fix Panel

43139165 Rubber, Cushion

43197199 Washer

4312C038 Motor, Fan

4312C039 Motor, Fan

43119497 Cover Ass’y

43139166 Cap, Nut

43179147 Gasket, VMQ

43119498 Cover, Sensor, ABS

43177010 Pump Ass’y, MDP-1401

43151299 Switch Ass’y, Float, FS-0218-102

43179145 LID Ass’y, Outside

43170254 Socket Ass’y, Drain

43197155 Washer, 25X6, 5X2T

430497212 Nut

43147195 Bonnet, 1/2, IN

43194029 Bonnet

43019904 Holder, Sensor, SUS

43179135 Band, Hose, 37-40

43179146 Cover, Glass

43182010 String

431S8083 Owner’s Manual

43179148 Glass

– 154 –

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RAV-SM564UT-E, RAV-SM804UT-E, RAV-SM1104UT-E, RAV-SM1404UT-E

403

404

405

401

402

Model Name RAV-SM

Location

No.

Part No.

Description

564UT-E

804UT-E

1104UT-E

1404UT-E

401

402

403

404

43050425 Sensor Ass’y, TC (F6), Service

43050426 Sensor, TA, Service

43160565 Terminal, Block, 3P, AC250V, 20A

43160568 Terminal, 2P, AC30V/DC42V, 1A

P.C. Board Ass’y, 220–240V,

4316V355

405

MCC-1570

– 155 –

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RBC-U31PG (W)-E, RBC-U31PG (WS)-E

316

320

303

317

319

318

305

312

308, 309

315

322

304

306, 307

313

314

302

310, 311

321

301

Model Name RBC-

U31PG (W)-E U31PG (WS)-E

Location

Part No.

Description

No.

301

302

303

304

305

306

307

308

309

310

311

312

313

314

315

316

317

318

319

320

321

322

43409207 Grille, Air Inlet

43480017 Air Filter, ABS + PPNET

4302D003 Motor, Louver, MP24Z3N

43407145 Outlet, Air Form, PS-F

43407146 Outlet, Air Form, PS-F

43409212 Louver, ABS

43409216 Louver, ABS

43401037 Cover, Panel Ass’y

43401041 Cover, Panel Ass’y

43401043 Cover, Panel Ass’y

43401047 Cover, Panel Ass’y

43407148 Plate, Fix, Panel

43407149 Plate, Fix, Panel

43407150 Hook, ABS

43407154 Cap, AXIS, POM

43403010 Cover Ass’y, Motor

43403011 Cover Ass’y

43403012 Cover Ass’y

43407155 Fix, Motor, ABS

43407156 Fix, Motor, ABS

43460125 Lead, Motor

43400077 Panel, Front, PS (W)

– 156 –

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RBC-AX31U (W)-E, RBC-AX31U (WS)-E

354

358

353

355

356, 357

Model Name RBC-

Location

Part No.

Description

No.

AX31U (W)-E

AX31U (WS)-E

353

354

355

356

357

358

43459011 P.C. Board Ass’y, Remote Reciever

43462010 Cover, WRS, ABS

43461006 Sheet, PC

43108018 Cover, Panel, WRS

43108019 Cover, Panel, WRS

43460126 Lead

– 157 –

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14-2. Outdoor Unit

RAV-SP1104AT-E, RAV-SP1404AT-E / RAV-SP1104ATZ-E, RAV-SP1404ATZ-E /

RAV-SP1104ATZG-E, RAV-SP1404ATZG-E

26, 32

31, 33

27, 37

4, 25

6, 9

21 5

7, 8, 36

– 158 –

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Model Name RAV-SP

Location

No.

Part No.

Description

1104AT-E 1404AT-E 1104ATZ-E 1404ATZ-E 1104ATZG-E 1404ATZG-E

43019904 Holder, Sensor, SUS

43032441 Nipple, Drain

43041794 Compressor, DA422A3F-25M

43047246 Bonnet, 3/8 IN

43047669 Nut, Flange

43197164 Nut, Flange, SUS304-WSB

43049739 Cushion, Rubber

43050407 Thermostat, Bimetal

43063317 Holder, Thermostat

43097212 Nut

43197174 Nut, Comp., SWCH10R

43100437 Panel, Front, Piping

43100438 Panel, Back, Piping

43100439 Panel, Front

43100440 Plate, Roof

43100441 Panel, Side

43100442 Panel, Air Outlet

43100443 Base Ass’y

43107274 Guard, Fin, Side

43107275 Guard, Fin, Back

43107276 Hanger, PP

43109422 Guard, Fan, PP

43120244 Fan, Propeller, PB521, SAN-GF20

43122113 Bell, Mouth, PP

4312C037 Motor, Fan, ICF-280-A100-1

43146676 Joint, Check

43146686 Valve, Packed, 9.52

43146687 Valve, 4-Way, STF-0401G

43146724 Valve, Ball, SBV-JA5GTC-1, Rohs

43148170 Accumulator Ass’y, 2.5L

43148188 Accumulator, 2.5L

4314G266 Condenser Ass’y, Down

4314G267 Condenser Ass’y, Down

4314G268 Condenser Ass’y, Down

4314G269 Condenser Ass’y, Up

4314G270 Condenser Ass’y, Up

4314G271 Condenser Ass’y, Up

Valve, Plus, Modulaing,

4314N023

UKV-25D100

Coil, Valve, 4-Way,

4314N024

VHV-01AP552B1

4314N025 Coil, PMV, UKV-A038

4314Q031 Strainer, DIA 9.52, C1220T-H

4314Q032 Strainer

43160591 Lead Ass’y, Compressor

43194029 Bonnet

– 159 –

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RAV-SP1104AT-E, RAV-SP1404AT-E / RAV-SP1104ATZ-E, RAV-SP1404ATZ-E /

RAV-SP1104ATZG-E, RAV-SP1404ATZG-E

709, 710

711

704

707

706

708

702

705

703

701

Model Name RAV-SP

Location

Part No.

Description

No.

1104AT-E 1404AT-E 1104ATZ-E 1404ATZ-E 1104ATZG-E 1404ATZG-E

701

702

703

704

705

706

707

708

709

710

711

43050425 Sensor Ass’y, TC (F6), Service

43063325 Holder, Sensor, 6 - 6.35, 8

43150319 Sensor Ass’y, TD (F4), Service

43158190 Reactor, CH-62-ZT

43160565 Terminal Block, 3P, AC250V, 20A

43160581 Terminal, 3P, 60A

43160589 Fuse, AC250V, 10A

43163055 Holder, Sensor

43163059 Spacer (Bush), P.C. Board

43163060 Spacer (Collar), P.C. Board

4316V357 P.C. Board Ass’y, MCC-1571

– 160 –

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WARNINGS ON REFRIGERANT LEAKAGE

Important

Check of Concentration Limit

NOTE 2 :

The room in which the air conditioner is to be

installed requires a design that in the event of

refrigerant gas leaking out, its concentration will not

exceed a set limit.

The standards for minimum room volume are as follows.

(1) No partition (shaded portion)

The refrigerant R410A which is used in the air

conditioner is safe, without the toxicity or combustibility of

ammonia, and is not restricted by laws to be imposed

which protect the ozone layer. However, since it contains

more than air, it poses the risk of suffocation if its

concentration should rise excessively. Suffocation from

leakage of R410A is almost non-existent. With the recent

increase in the number of high concentration buildings,

however, the installation of multi air conditioner systems

is on the increase because of the need for effective use

of floor space, individual control, energy conservation by

curtailing heat and carrying power etc.

(2) When there is an effective opening with the adjacent

room for ventilation of leaking refrigerant gas

(opening without a door, or an opening 0.15% or

larger than the respective floor spaces at the top or

bottom of the door).

Most importantly, the multi air conditioner system is able

to replenish a large amount of refrigerant compared with

conventional individual air conditioners. If a single unit of

the multi conditioner system is to be installed in a small

room, select a suitable model and installation procedure

so that if the refrigerant accidentally leaks out, its

concentration does not reach the limit (and in the event

of an emergency, measures can be made before injury

can occur).

In a room where the concentration may exceed the limit,

create an opening with adjacent rooms, or install

mechanical ventilation combined with a gas leak

detection device.

Outdoor unit

Refrigerant piping

Indoor unit

(3) If an indoor unit is installed in each partitioned room

and the refrigerant piping is interconnected, the

smallest room of course becomes the object. But

when a mechanical ventilation is installed interlocked

with a gas leakage detector in the smallest room

where the density limit is exceeded, the volume of

the next smallest room becomes the object.

The concentration is as given below.

Total amount of refrigerant (kg)

Min. volume of the indoor unit installed room (m³)

≤ Concentration limit (kg/m³)

Refrigerant piping

Outdoor unit

The concentration limit of R410A which is used in multi

air conditioners is 0.3kg/m³.

Very

small

Indoor unit

room

NOTE 1 :

Small

room

Medium

room

If there are 2 or more refrigerating systems in a single

refrigerating device, the amounts of refrigerant should be

as charged in each independent device.

Large room

Mechanical ventilation device - Gas leak detector

NOTE 3 :

The minimum indoor floor area compared with the

amount of refrigerant is roughly as follows:

(When the ceiling is 2.7m high)

Outdoor unit

e.g., charged

e.g.,

amount (10kg)

charged amount (15kg)

Range below the

m²

density limit

of 0.3 kg/m³

(countermeasures

not needed)

Room A Room B Room C Room D Room E Room F

Indoor unit

Range above

the density limit

of 0.3 kg/m³

(countermeasures

needed)

For the amount of charge in this example:

The possible amount of leaked refrigerant gas in

rooms A, B and C is 10kg.

The possible amount of leaked refrigerant gas in

rooms D, E and F is 15kg.

Total amount of refrigerant

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