Toshiba Air Conditioner RAV SM1100UT E User Manual

FILE NO. A03-002

SERVICE MANUAL

<OWNER’S MANUAL/INSTALLATION MANUAL>

SPLIT TYPE

RAV-SM1100AT-E/RAV-SM1400AT-E

RAV-SM1100UT-E/RAV-SM1400UT-E

R410A

PRINTED IN JAPAN, Aug., 2003 ToMo

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Outdoor Unit –––––––––––––––––––––––– RAV-SM1100AT-E/RAV-SM1400AT-E

INSTALLATION MANUAL

PRECAUTIONS FOR SAFETY.................................... 1

ACCESSORY AND REFRIGERANT ........................... 3

SELECTION OF INSTALLATION ................................ 3

REFRIGERANT PIPING .............................................. 7

EVACUATING............................................................... 9

ELECTRICALWORK................................................. 11

FINAL INSTALLATION CHECKS .............................. 12

Indoor Unit ––––––––––––––––––––––– RAV-SM1100UT-E/RAV-SM1400UT-E

4-Way Air Discharge CassetteType

OWNER’S MANUAL

ACCESSORIES (SOLD SEPARATELY) ........................... 14

PRECAUTIONS FOR SAFETY ........................................ 14

PARTS NAME ................................................................... 16

PARTS NAME OF REMOTE CONTROLLER ................... 17

CORRECT USAGE ........................................................... 19

AUTOMATIC OPERATION (Auto Changeover) .............. 20

ADJUSTMENT OF WIND DIRECTIONd .......................... 21

TIMER OPERATION ......................................................... 22

MAINTENANCE................................................................ 24

AIR CONDITIONER OPERATIONS AND PERFORMANCE . 25

RE-INSTALLATION .......................................................... 26

TROUBLES AND CAUSES .............................................. 26

4-Way Air Discharge CassetteType

INSTALLATION MANUAL

Accessory parts and Parts to be procured locally ...... 28

EVACUATING............................................................. 39

ELECTRICALWORK................................................. 41

TEST RUN ................................................................. 44

TROUBLESHOOTING ............................................... 45

MAINTENANCE......................................................... 46

PRECAUTIONS FOR SAFETY.................................. 29

SELECTION OF INSTALLATION PLACE ................. 31

DRAIN PIPING WORK ............................................... 36

REFRIGERANT PIPING ............................................ 38

Accessories –––––––––––––––––––––––––––––––––––––––––––––––––––––

OWNER’S MANUAL

REMOTE CONTROLLER FOR AIR CONDITIONER (SPLITTYPE)

TCB-AX21U (W)-E ............................................................48

RBC-EXW21E ...................................................................56

RBC-AS21E ......................................................................62

WEEKLY TIMER FOR AIR CONDITIONER (SPLITTYPE)

REMOTE CONTROLLER FOR AIR CONDITIONER

INSTALLATION MANUAL

Ceiling Panel

RBC-U21PG (W)-E ............................................................65

RBC-AMT21E....................................................................67

RBC-AS21E ......................................................................68

RBC-EXW21E ...................................................................69

TCB-TC21LE ..................................................................... 70

TCB-DP11BE ....................................................................71

TCB-AX21U (W)-E ............................................................72

Standard Remote Controller

Simple Remote Controller

Program Weekly Timer

Remote sensor

Drain-up Kit for Concealed DuctType Indoor Unit

Remote Controller Wireless Kit

Network Adapter for Air Conditioner (Use for Indoor Unit Only)

TCB-PCNT20E ..................................................................73

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PRECAUTIONS FOR SAFETY

• Ensure that all Local, National and International regulations are satisfied.

• Read this “PRECAUTIONS FOR SAFETY” carefully before Installation.

• The precautions described below include the important items regarding safety. Observe them without fail.

• After the installation work, perform a trial operation to check for any problem.

Follow the Owner’s Manual to explain how to use and maintain the unit to the customer.

• Turn off the main power supply switch (or breaker) before the unit maintenance.

• Ask the customer to keep the Installation Manual together with the Owner’s Manual.

CAUTION

New Refrigerant Air Conditioner Installation

• THIS AIR CONDITIONER ADOPTS THE NEW HFC REFRIGERANT (R410A) WHICH DOES NOT DE-

STROY OZONE LAYER.

The characteristics of R410A refrigerant are ; easy to absorb water, oxidizing membrane or oil, and its pressure

is approx. 1.6 times higher than that of refrigerant R22. Accompanied with the new refrigerant, refrigerating oil

has also been changed. Therefore, during installation work, be sure that water, dust, former refrigerant, or

refrigerating oil does not enter the refrigerating cycle.

To prevent charging an incorrect refrigerant and refrigerating oil, the sizes of connecting sections of charging

port of the main unit and installation tools are charged from those for the conventional refrigerant.

Accordingly the exclusive tools are required for the new refrigerant (R410A).

For connecting pipes, use new and clean piping designed for R410A, and please care so that water or dust

does not enter. Moreover, do not use the existing piping because there are problems with pressure-resistance

force and impurity in it.

CAUTION

To Disconnect the Appliance from Main Power Supply.

This appliance must be connected to the main power supply by means of a switch with a contact separation of

at least 3 mm.

The installation fuse (25A D type

) must be used for the power supply line of this conditioner.

WARNING

• Ask an authorized dealer or qualified installation professional to install/maintain the air

conditioner.

Inappropriate installation may result in water leakage, electric shock or fire.

• Turn off the main power supply switch or breaker before attempting any electrical work.

Make sure all power switches are off. Failure to do so may cause electric shock.

• Connect the connecting cable correctly.

If the connecting cable is connected in a wrong way, electric parts may be damaged.

• When moving the air conditioner for the installation into another place, be very careful not

to enter any gaseous matter other than the specified refrigerant into the refrigeration cycle.

If air or any other gas is mixed in the refrigerant, the gas pressure in the refrigeration cycle becomes abnor-

mally high and it may resultingly causes pipe burst and injuries on persons.

• Do not modify this unit by removing any of the safety guards or by by-passing any of the

safety interlock switches.

• Exposure of unit to water or other moisture before installation may cause a short-circuit of

electrical parts.

Do not store it in a wet basement or expose to rain or water.

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• After unpacking the unit, examine it carefully if there are possible damage.

• Do not install in a place that might increase the vibration of the unit.

• To avoid personal injury (with sharp edges), be careful when handling parts.

• Perform installation work properly according to the Installation Manual.

Inappropriate installation may result in water leakage, electric shock or fire.

• When the air conditioner is installed in a small room, provide appropriate measures to

ensure that the concentration of refrigerant leakage occur in the room does not exceed the

critical level.

• Install the air conditioner securely in a location where the base can sustain the weight

adequately.

• Perform the specified installation work to guard against an earthquake.

If the air conditioner is not installed appropriately, accidents may occur due to the falling unit.

• If refrigerant gas has leaked during the installation work, ventilate the room immediately.

If the leaked refrigerant gas comes in contact with fire, noxious gas may generate.

• After the installation work, confirm that refrigerant gas does not leak.

If refrigerant gas leaks into the room and flows near a fire source, such as a cooking range, noxious gas

might generate.

• Electrical work must be performed by a qualified electrician in accordance with the Installa-

tion Manual. Make sure the air conditioner uses an exclusive power supply.

An insufficient power supply capacity or inappropriate installation may cause fire.

• Use the specified cables for wiring connect the terminals securely fix. To prevent external

forces applied to the terminals from affecting the terminals.

• Be sure to provide grounding.

Do not connect ground wires to gas pipes, water pipes, lightning rods or ground wires for telephone cables.

• Conform to the regulations of the local electric company when wiring the power supply.

Inappropriate grounding may cause electric shock.

• Do not install the air conditioner in a location subject to a risk of exposure to a combustible

gas.

If a combustible gas leaks, and stays around the unit, a fire may occur.

Required tools for installation work

R410A (Special requirement)

1) Philips screw driver

2) Hole core drill (65 mm)

3) Spanner

17) Gauge manifold

9) Thermometer

10) Mega-tester

11) Electro circuit tester

12) Hexagonal wrench

13) Flare tool

(Charge hose : R410A special requirement)

18) Vacuum pump

(Charge hose : R410A special requirement)

4) Pipe cutter

19) Torque wrench

5) Knife

1/4 (17 mm) 16 N•m (1.6 kgf•m)

3/8 (22 mm) 42 N•m (4.2 kgf•m)

1/2 (26 mm) 55 N•m (5.5 kgf•m)

5/8 (15.9 mm) 120 N•m (12.0 kgf•m)

6) Reamer

14) Pipe bender

15) Level vial

7) Gas leak detector

8) Tape measure

16) Metal saw

20) Copper pipe gauge adjusting projection margin

21) Vacuum pump adapter

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ACCESSORY AND REFRIGERANT

Accessory and Installation Parts

Refrigerant Piping

• Piping kit used for the conventional refrigerant cannot

be used.

• Use copper pipe with 0.8 mm or more thickness for

Ø9.5 mm.

Outdoor unit

Installation manual x 1

Protective bush

Use copper pipe with 1.0 mm or more thickness for

Ø15.9 mm.

Drain nipple

• Flare nut and flare works are also different from those

of the conventional refrigerant. Take out the flare nut

attached to the main unit of the air conditioner, and

use it.

Guard material for

passage part

Waterproof rubber cap

SELECTION OF INSTALLATION

Air purge

Before installation

• For air purge, use a vacuum pump.

Be careful to the following items before installation.

• Do not use refrigerant charged in the outdoor unit for

air purge. (The refrigerant for air purge is not con-

tained in the outdoor unit.)

Length of refrigerant pipe

connected to

Item

Electrical cabling

indoor/outdoor unit

• Be sure to fix the power cables and indoor/outdoor

connecting cables with clamps so that they do not

contact with the cabinet, etc.

Addition of refrigerant is

unnecessary at the local site.

20m or shorter

Add 40g of refrigerant for every

1m of pipe which exceeds 20m.

21m to 50m

* Caution at addition of refrigerant

When the total length of refrigerant pipe exceeds

20m, add 40g/m of refrigerant and the maximum total

length of pipe is 50m.

(Max. amount of additional refrigerant is 1200g.)

Charge the refrigerant accurately. Overcharge may

cause a serious trouble of compressor.

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Installation Place

Necessary Space for Installation

Obstacle at rear side

• A place which provides a specified space around the

outdoor unit.

• A place where the operation noise and discharged air

are not given to your neighbors.

1. Single unit installation

• A place that is not exposed to a strong wind.

• A place that does not block a passage.

• When the outdoor unit is installed in an elevated

position, be sure to secure its feet.

• There must be sufficient space for carrying in the

unit.

2. Obstacles at both right and left sides.

• A place where the drain water does not make any

problem.

The height of the

obstacle should be

lower than the height

of the outdoor unit.

CAUTION

1. Install the outdoor unit at a place where dis-

charge air is not blocked.

150

300

or more

3. Serial installation of two or more units

2. When an outdoor unit is installed in a place that

is always exposed to a strong wind like a coast

or on a high storey of a building, secure a

normal fan operation by using a duct or a wind

shield.

3. When installing the outdoor unit in a place that is

constantly exposed to a strong wind such as the

upper stairs or rooftop of a building, apply the

windproof measures referring to the following

examples.

150

300

or more

The height of the obstacle should be lower

than the height of the outdoor unit.

1) Install the unit so that its

discharge port faces to the

wall of the building. Keep a

distance 500 mm or more

between the unit and the

wall surface.

150

or more

2) Supposing the wind direction during the

operation season of the air conditioner, install

the unit so that the discharge port is set at

right angle to the wind direction.

Obstacle at front side

Strong

wind

Strong

wind

1. Single unitIn installation

4. Installation in the following places may result in

some troubles. Do not install the unit in such

places below.

2. Serial installation of two or more units

• A place full of machine oil.

• A place full of sulphuric gas.

• A place where high-frequency radio waves are

likely to be generated as from audio quipment,

welders, and medical equipment.

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SELECTION OF INSTALLATION

Installation of Outdoor Unit

• Before installation, check strength and horizontality of

the base so that abnormal sound does not generate.

1000

or more

• According to the following base diagram, fix the base

firmly with the anchor bolts.

(Anchor bolt, nut: M10 x 4 pairs)

150

600

150

430

Obstacles at both front and rear sides

Drain hole

Open the upper side and both right and left sides.

The height of obstacle at both front and rear side,

should be lower than the height of the outdoor unit.

Drain nipple mounting hole

Knockout hole

1. Single unit installation

Set the out margin of the anchor bolt to 15mm or less.

15 or less

• In case of drainning through the drain hose, attach

the following drain nipple and the waterproof rubber

cap, and use the drain hose (Inner diam.: 16mm) sold

on the market. And also seal the screws securely with

silicone material, etc. so that water does not drop

down. Some conditions may cause dewing or drip-

ping of water.

2. Serial installation of two or more units

300

or more

Drain nipple

Waterproof rubber cap

Serial installation at front and rear sides

Knockout hole

Open the upper side and both right and left sides.

The height of obstacle at both front and rear sides

should be lower than the height of the outdoor unit.

Open

Waterproof rubber cap

Drain nipple

• When there is a possibility of freezing of drain at the

cold district or a snowfall area, be careful for drainage

ability of drain.The drainage ability increases when a

knockout hole on the base plate is opened. (Open the

knockout hole to outside using a screwdriver, etc.)

1000

300

1500

2000

200

or more

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Optional Installation Parts (Local Procure)

Knockout of Pipe Cover

Parts name

Q’ty

Refrigerant piping

Liquid side : Ø9.5 mm

Gas side : Ø15.9 mm

Each one

Pipe insulating material

(polyethylene foam, 6 mm thick)

Rear direction

Pipe cover

Putty, PVC tapes

Each one

Side direction

Front direction

Down direction

Refrigerant Piping Connection

CAUTION

TAKE NOTICE THESE IMPORTANT

4 POINTS BELOW FOR PIPING WORK

1. Keep dust and moisture away from inside the

connecting pipes.

Knockout procedure

• The indoor/outdoor connecting pipes can be con-

nected to 4 directions.

2. Tightly connect the connection between pipes

and the unit.

Take off the knockout part of the pipe cover in which

pipes or wires pass through the base plate.

3. Evacuate the air in the connecting pipes using

VACUUM PUMP.

• As shown in the figure, do not remove the pipe cover

from the cabinet so that the knockout hole can be

easily punched.To knock out, it is easily taken off by

hands by punching a position at the lower side of 3

connected parts with screwdriver along the guide

line.

4. Check gas leak at connected points.

Liquid side

Gas side

• After marking the knockout hole, remove the burr and

mount the attached protective bush and guard

material for pass-through part in order to protect

pipes and wires.

Outer diameter Thickness Outer diameter Thickness

Ø9.5

0.8

Ø15.9

1.0

After connecting the pipes, be sure to mount the pipe

cover. The pipe cover is easily mounted by cutting off

the slit at the lower part of the pipe cover.

For Reference

If a heating operation would be continuously performed

for a long time under the condition that the outdoor

temperature is 0°C or lower, draining of defrosted water

may be difficult due to freezing of the bottom plate,

resulting in a trouble of the cabinet or fan.

It is recommended to procure an anti-freeze heater

locally for a safety installation of the air conditioner.

For details, contact the dealer.

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SELECTION OF INSTALLATION

In order to avoid the force applied to on the connect-

ing section, be sure to fix the cables to the cord

clamps provided on the pipe valve fixing plate and the

electric parts box.

How to remove the front panel

1. Remove screws of the front panel.

2. Pull the front panel downward.

Removing the front panel, the electric parts appear at

the front side.

Front panel

Electric parts box

• The metal pipes are attachable to the piping holes.

If the size of the used power pipe does not match with

the hole, adjust the hole size to match with pipe size.

• Be sure to fix the power cable and indoor/outdoor

connecting cable with bundling band sold on the

market so that they do not make contact with the

compressor and discharge pipe.

Pipe valve

fixing plate

(Temperature of the compressor and discharge pipe

becomes high.)

Piping

hole

Cord clamp

REFRIGERANT PIPING

* In case of flaring for R410A with the conventional

flare tool, pull it out approx. 0.5 mm more than that of

R22 to adjust to the specified flare size. The copper

pipe gauge is useful for adjusting projection margin

size.

Pipe Forming/End Positioning

Flaring

1. Cut the pipe with a pipe cutter.

90˚

Obliquity Roughness

Warp

• Projection margin in flaring : B (Unit : mm)

2. Insert a flare nut into the pipe, and flare the pipe.

As the flaring sizes of R410A differ from those of

refrigerant R22, the flare tools newly manufactured

for R410A are recommended.

However, the conventional tools can be used by

adjusting projection margin

Rigid (Clutch type)

Outer dia.

of copper

pipe

R410A tool used

R410A R22

Conventional tool used

R410A R22

6.4

9.5

0 to 0.5 (Same as left) 1.0 to 1.5 0.5 to 1.0

of the copper pipe.

12.7

15.9

• Flaring size : A (Unit : mm)

Imperial (Wing nut type)

0.4

Outer dia. of copper pipe

R410A

R22

R410A

9.1

R22

9.0

6.4

9.5

1.5 to 2.0

2.0 to 2.5

1.0 to 1.5

1.5 to 2.0

6.4

9.5

13.2

16.6

19.7

13.0

16.2

19.4

12.7

15.9

12.7

15.9

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Tightening of Connecting Part

REQUIREMENT

(Unit: N•m)

1. Do not put the spanner on the cap. The valve

may be broken.

Outer dia. of copper pipe

6.4 mm (diam.)

Tightening torque

2. If applying excessive torque, the nut may be

broken according to some installation conditions.

14 to 18 (1.4 to 1.8 kgf•m)

33 to 42 (3.3 to 4.2 kgf•m)

50 to 62 (5.0 to 6.2 kgf•m)

63 to 77 (6.3 to 7.7 kgf•m)

9.5 mm (diam.)

12.7 mm (diam.)

15.9 mm (diam.)

• After the installation work, be sure to check gas leak

of connecting part of the pipes with nitrogen.

Flare at

indoor unit side

Cover

Flare at

outdoor unit side

• Align the centers of the connecting pipes and tighten

the flare nut strong as far as possible with your

fingers.

Then fix the nut with a spanner and tighten it with

torque wrench as shown in the figure.

• Pressure of R410A is higher than that of R22

(Approx. 1.6 times).Therefore, using a torque

wrench, tighten the flare pipe connecting sections

which connect the indoor/outdoor units at the speci-

fied tightening torque. Incomplete connections may

cause not only a gas leak, but also a trouble of the

refrigeration cycle.

Half union or packed valve

Flare nut

Externally

threaded side

Internally

threaded side

Fix with spanner.

Tighten with torque wrench.

Do not apply refrigerating machine oil to

the flared surface.

• As shown in the figure, be sure to use a double

spanner to loosen or tighten the flare nut of the valve

at gas side. If using a single spanner, the nut cannot

be tightened with necessary tightening torque.

On the contrary, use a single spanner to loosen or

tighten the flare nut of the valve at liquid side.

Cover

Cap

Piping valve

Loosened

Tightened

Flare nut

Valve at gas side

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EVACUATING

Air Purge

This air conditioner can be installed up to the connecting pipe length and height difference in the following table.

Height difference (m)

Max. connecting

Hexagonal wrench size

pipe length (m)

Outdoor unit at upper side Outdoor unit at lower side

4 mm

With respect to the preservation of terrestrial environment, adopt “Vacuum pump” for air purge (Evacuate air in

the connecting pipes) when installing the unit.

• Do not discharge the refrigerant gas to the atmosphere to preserve the terrestrial environment.

• Use a vacuum pump to discharge the air (nitrogen, etc.) remained in the set. If the air remains, the capacity

may decrease.

For the vacuum pump, be sure to use one with backflow preventer so that the oil in the pump does not backflow

into the pipe of the air conditioner when the pump stops. (If oil in the vacuum pump is put in an air conditioner

including R410A, it may cause trouble on the refrigeration cycle.)

Vacuum pump

As shown in the right figure, connect the charge hose after the manifold valve are closed completely.

Attach the connecting port of the charge hose with a projection to push the valve core (setting pin) to the charge port of the set.

Open handle Low fully.

Turn ON the vacuum pump (*1)

Loosen the flare nut of the packed valve (Gas side) a little to check the air passes through. (*2)

Tighten the flare nut again.

Execute vacuuming until the compound pressure gauge indicates –101kPa (–76cmHg). (*1)

Close handle Low completely.

Turn OFF the vacuum pump.

Leave the vacuum pump as it is for 1 or 2 minutes, and check the indicator of the compound pressure gauge does not return.

Open fully the valve stem or the valve handle. (First, at liquid side, then gas side)

Disconnect the charge hose from the charge port.

Tighten valve and caps of the charge port surely.

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Handle position

Compound pressure gauge

Pressure gauge

–101kPa

(–76cmHg)

Manifold valve

Handle Lo

Handle Hi

(Keep fully closed)

Charge hose

(For R410A only)

Charge hose

(For R410A only)

Service port

(Valve core (Setting pin))

Handle

Vacuum pump adapter

for counter-flow prevention

(For R410A only)

Closed completely

Opened fully

Vacuum

*1. Use the vacuum pump, vacuum pump adapters,

and gauge manifold referring to the manuals

attached to each tool before using them. For the

vacuum pump, check oil is filled up to the specified

line of the oil gauge.

pump

Packed valve at gas side

*2. While the air is purged, check again that the

connecting port of charge hose, which has a

projection to push the valve core, is firmly con-

nected to the charge port.

How to open the valve

Valve unit

Valve handling precautions

• Open the valve stem or the handle until it strikes

the stopper. It is unnecessary to apply further

force.

Handle

• Securely tighten the cap with a torque wrench.

Pull out the handle and

using cutting pliers, etc.

turn it counterclockwise

by 90˚. (Open fully)

• Cap tightening torque

Charge port

Ø6.4

Ø9.5

14 to 18N•m (1.4 to 1.8kgf•m)

33 to 42N•m (3.3 to 4.2kgf•m)

20 to 25N•m (2.0 to 2.5kgf•m)

14 to 18N•m (1.4 to 1.8kgf•m)

Flare nut

Valve size

Ø12.7

Ø15.9

Charge port

How to close the valve

Valve unit

Push in handle and

turn clockwise by 90˚.

(Close fully)

Charge port

Flare nut

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ELECTRICAL WORK

For the air conditioner that has no power cable, connect

a power cable as mentioned below.

Stripping length power cord and connecting cable

Model

RAV-

SM1100AT-E SM1400AT-E

1 2 3

220 – 240 V

Single phase 50 Hz

Power supply

Maximum running current

Installation fuse rating

22.0 A

22.8 A

25 A (D type

)

H07 RN-F or 245 IEC 66

(2.5 mm²or more)

Earth line Earth line

(mm)

Power cable

Connecting

Power cable

cable

CAUTION

• Wrong wiring may cause a burn-out to some

electrical parts.

CAUTION

• The installation fuse (25A D type

be used for the power supply line of this air

conditioner.

• Incorrect/incomplete wiring might cause an

electrical fire or smoke.

• Prepare the exclusive power supply for the air

conditioner.

• This product can be connected to the mains.

Connection to the fixed wiring :

) must

• Be sure to use the cord clamps attached to the

product.

• Do not damage or scratch the conductive core

and inner insulator of power and inter-connecting

cables when peeling them.

• Be sure to comply with local regulations of the

cable from outdoor unit to indoor unit.

(wire size and cabling method etc.)

• Use the power and Inter-connecting cables with

specified thickness, specified type and protective

devices required.

A switch which disconnects all poles and has a

contact separation of at least 3 mm must be

incorporated in the fixed wiring.

How to wire

1. Connect the connecting cable to the terminal as

identified with their respective numbers on the

terminal block of indoor and outdoor unit.

H07 RN-F or 245 IEC 66 (1.0 mm²or more)

2. When connecting the connecting cable to the

outdoor unit terminal, prevent water coming in the

outdoor unit.

3. Insulate the unsheathed cords (conductors) with

electrical insulation tape. Process them so that they

do not touch any electrical or metal parts.

4. For inter connecting cable, do not use a wire jointed

to another on the way.

Use wires long enough to cover the entire length.

Power supply

terminal block

To Indoor unit

terminal block

Earth screw

Power cable

Connecting cable

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FINAL INSTALLATION CHECKS

Check and Test Operation

For R410A, use the leak detector exclusively manufactured for HFC refrigerant (R410A, R134a, etc.).

The conventional leak detector for HCFC refrigerant (R22, etc.) cannot be used because its sensitivity for HFC

refrigerant lowers to approx. 1/40.

• Pressure of R410A is approx. 1.6 times higher than that of R22.

If installation work is incompletely finished, a gas leakage may occur when pressure rises during operation.

Therefore, be sure to test the piping connections for leakage.

• Check gas leakage at the flare nut connections, valve stem cap connections and service port cap fittings with a

leak detector or soap water.

CAUTION

When the remote controller is used for the first time, it accepts an operation approx. 5 minutes after the power

supply has been turned on.

It is not a trouble, but is because the setup of the remote controller is being checked.

For the second power-ON time and after, approx. 1 munute is required to start the operation by the remote controller.

Useful Functions

Self-Diagnosis by LED Indication

In addition to the code checking by remote controller of the indoor unit, troubles of the outdoor unit can be diag-

nosed by LED indications on the cycle control P.C. board of the outdoor unit. Utilize them for various checks.

For the check by remote controller of the indoor unit, refer to the Installation Manual of the indoor unit.

Before a check, confirm each bit of the DIP switch is set to OFF position.

LED indication and code checking

Cycle control P.C. board

LED indication

Cause

D800 D801 D802 D803

Heat exchanger sensor (TE) error

Suction sensor (TS) error

Discharge sensor (TD) error

High-pressure protection error

Outdoor temperature sensor (TO) error

DC outside fan error

D800 ¡ : Red

D801 ¡ :Yellow

D802 ¡ :Yellow

D803 ¡ :Yellow

Communication error between IPDU (Abnormal stop)

High-pressure release operation

Discharge temp. error

¥ : Rapid flash

l : Go off

EEPROM error

¡ : Go on

Communication error between IPDU (No abnormal stop)

G-Tr short-circuit protection

Detect circuit error

Current sensor error

Comp. lock error

Comp. break down

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FINAL INSTALLATION CHECKS

Installation/ServicingTools

Changes in the product and components

In the case of an air conditioner using R410A, in order to prevent any other refrigerant from being charged acciden-

tally, service port diameter of the outdoor unit control valve (3 way valve) has been changed. (1/2 UNF 20 threads

per inch)

• In order to increase the pressure resisting strength of the refrigerant piping flare processing diameter and size of

opposite side of flare nuts has been changed. (for copper pipes with nominal dimensions 1/2 and 5/8)

New tools for R410A

Applicable to R22 model

Changes

As pressure is high, it is impossible to measure by means of conventional

gauge. In order to prevent any other refrigerant from being charged, each

port diameter is changed.

Gauge manifold

In order to increase pressure resisting strength, hose materials and port

size are changed (to 1/2 UNF 20 threads per inch).

When purchasing a charge hose, be sure to check the port size.

Charge hose

Electronic balance

for refrigerant charging

As pressure is high and gasification speed is fast, it is difficult to read the

indicated value by means of charging cylinder, as air bubbles occur.

Torque wrench

(nominal diam. 1/2, 5/8)

The size of opposite sides of flare nuts have been increased. Incidentally,

a common wrench is used for nominal diameters 1/4 and 3/8.

Flare tool

(clutch type)

By increasing the clamp bar’s receiving hole, strength of spring in the tool

has been improved.

Gauge for projection adjustment

Vacuum pump adapter

—

Used when flare is made with using conventional flare tool.

Connected to the conventional vacuum pump. It is necessary to use an

adapter to prevent vacuum pump oil from flowing back to the charge hose.

The charge hose connecting part has two ports-one for conventional

refrigerant (7/16 UNF 20 threads per inch) and one for R410A.

If the vacuum pump oil (mineral) mixes with R410A a sludge may occur

and damage the equipment.

Gas leakage detector

Exclusive for HFC refrigerant.

• Incidentally, the “refrigerant cylinder” comes with the refrigerant designation (R410A) and protector coating in the

U,S.’s ARI specified rose color (ARI color code: PMS 507).

• Also, the “charge port and packing for refrigerant cylinder” require 1/2 UNF 20 threads per inch corresponding to

the charge hose’s port size.

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ACCESSORIES (SOLD SEPARATELY)

Remote controller

Standard 4-way cassette panel optional parts

PRECAUTIONS FOR SAFETY

WARNING

WARNINGS ABOUT INSTALLATION

• Make sure to ask the qualified installation professional in electric work to install the

air conditioner.

If the air conditioner is inappropriate installed by yourself, it may cause water leak,

electric shock, fire, and so on.

• Be sure to provide grounding.

Do not connect ground wires to gas pipes, water pipes, lightning rods or ground

wires for telephone cables.

CAUTION

TO DISCONNECT THE APPLIANCE FROM THE MAINS SUPPLY

This appliance must be connected to the mains by means of a switch with a

contact separation of at least 3 mm.

The installation fuse (25A D type

supply line of this conditioner.

) must be used for the power

WARNINGS ABOUR OPERATION

• Cleaning of the air filter and other parts of the air filter involves dangerous work in

high places, so be sure to have a service person do it. Do not attempt it yourself.

The cleaning diagram for the air filter is there for the service person, and not for the

customer.

• Avoid cooling the room too strong or exposing the human body to cool breeze for a

long time as it is bad for the health.

• When you notice something abnormal with the air conditioner (smells like some-

thing scorching, poor cooling, etc.), immediately turn off the main switch, the circuit

breaker, from the mains to stop the air conditioner, and contact the dealer.

If the air conditioner is continuously operated with something abnormal, it may

cause machine failure, electric shock, fire, and so on.

WARNINGS ABOUT MOVEMENT AND REPAIR

• Do not move or repair any unit by yourself.

Since there is high voltage inside the unit, you may get electric shock when remov-

ing the cover and main unit.

• Whenever the air conditioner needs repair, make sure to ask the dealer to do it.

If it is repaired imperfectly, it may cause electric shock or fire.

• When moving the air conditioner for re-installing at another place, ask the dealer to

do it. If it is imperfectly installed, it may cause electric shock or fire.

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CAUTION

CAUTIONS ABOUT INSTALLATION

• Be sure to confirm the following cautions.

• Certainly lay the drain hose for perfect draining.

Bad drainage may cause flooding in the house and getting furniture

wet.

• Make sure to connect the air conditioner to an exclusive power

supply of the rated voltage, otherwise the unit may break down or

cause a fire.

• Do not install the unit in a place where inflammable gas may leak.

If inflammable gas accumulates around the unit, it may cause a fire.

CAUTIONS ABOUT OPERATION

• Carefully read this manual before starting the air conditioner.

There are many important things to keep in mind for daily operation.

• Do not use this air conditioner for special purpose such as preserv-

ing food, precision instruments, art objects, breeding animals,

growing potted plants, etc.

• Avoid exposing potted plants and animals to the wind of the air

conditioner, since it badly affects the health and growth of them.

• When the air conditioner is operated with a combustion appliance in

the same place, be careful of ventilation to let fresh air enter the

room.

Poor ventilation causes oxygen shortage.

• Do not place any combustion appliance in a place where it is directly

exposed to the wind of air conditioner, otherwise it may cause

imperfect combustion.

• When the air conditioner is used in a closed room, be careful of

sufficient ventilation of the room. Poor ventilation causes oxygen

shortage.

• Do not touch any switches with wet finger, otherwise you may get an

electric shock.

• If the air conditioner won’t be used for a considerably long time, turn

off the main switch or the circuit breaker, for safety.

• Check the concrete blocks, etc. of the base of the outdoor unit

occasionally.

If the base is left damaged or deteriorated, the unit may topple over

and inflict an injury to a person as the worst case.

• Do not put anything on the outdoor unit nor step onto it. If you do so,

it may not only topple over the unit but also injure yourself.

• To make the air conditioner operate in its original performance,

operate it within the range of the operating temperature specified in

the instructions.

Otherwise it may cause a malfunction, or water leak from the unit.

• Prevent any liquid from falling into the remote controller. Do not spill

juice, water or any kind of liquid.

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PARTS NAME

Indoor unit

Button

Earth screw

Button to open/close the

suction port

Provided in the electric parts

box

Discharge flap of

discharge port

Change the direction of the air

to be discharged according to

cool/heat mode.

Air filter

Removes dust or trash.

(Provided on the suction port.)

Suction air port

The air in the room is sucked

in from this port.

Projection of air filter

Outdoor unit

Remote controller

Air inlet (Side and rear)

REMOTE CONTROLLER

Air outlet

Pipes and electric wires

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PARTS NAME OF REMOTE CONTROLLER

Display section

CODE No.

In the display example, all indicators are displayed for the explana-

tion.

SET DATA

UNIT No.

Display

section

SETTINGTEST R.C. No.

In reality only, the selected contents are indicated.

• When turning on the leak breaker at the first time, [SET

DATA] flashes on the display part of the remote controller.

While this display is flashing, the model is being automatically

confirmed. Accordingly, wait for a while after [SET DATA]

display has disappeared, and then use the remote controller.

Operation

section

UNIT

SET CL

CODE No.

SET DATA

UNIT No.

R.C. No.

SETTING

TEST

SET DATA display

Displayed during setup of the timer.

SWING display

Displayed during up/down movement of

the flap.

Operation mode select display

The selected operation mode is displayed.

Set up temperature display

The selected set up temp. is displayed.

CHECK display

Displayed while the protective device works or a

trouble occurs.

Remote controller sensor display

Displayed while the sensor of the remote

controller is used.

Timer time display

Time of the timer is displayed.

(When a trouble occurs, the check code is dis-

played.)

PRE-HEAT display

Displayed when the heating operation

starts or defrost operation is carried out.

While this indication is displayed, the

indoor fan stops or the mode enters in

LOW.

Timer SETIN setup display

When pushing the Timer SETIN button, the

display of the timer is selected in order of [OFF]

→

[OFF] repeat OFF timer → [ON]

No function display

Displayed if there is no function even if

the button is pushed.

→ No display.

Filter display

If “FILTER

Air volume select display

The selected air volume mode is dis-

played.

” is displayed, clean the air filter.

TEST run display

(AUTO)

(HIGH)

(MED.)

(LOW)

Displayed during a test run.

Flap position display

Displays flap position.

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Operation section

Push each button to select a desired operation.

• The details of the operation needs to be set up once, afterward, the air conditioner can be used by pushing

button only.

UNIT

SET

Air volume select button

button

Selects the desired air volume mode.

When the button is pushed, the operation

starts, and it stops by pushing the button

again.

Timer set button

TIMER SET button is used when the timer is

set up.

When the operation has stopped, the operation

lamp and all the displays disappear.

Check button

Operation select button

The CHECK button is used for the check

operation. During normal operation, do not

use this button.

Selects desired operation mode.

Set up temperature button

Adjusts the room temperature.

Fan button

FAN button is used when a fan which is sold on

the market or etc. is connected.

Set the desired set temperature by pushing

• If “No function” is displayed on the remote

controller when pushing the FAN button, a

fan is not connected.

Filter reset button

Resets (Erases) “FILTER

” display.

UNIT and AUTO flap button

UNIT (No function)

OPTION :

Remote controller sensor

Usually the TEMP. sensor of the indoor unit senses

the temperature.The temperature on the surround-

ing of the remote controller can also be sensed.

For details, contact the dealer from which you have

purchased the air conditioner.

Operation lamp

Lamp is lit during the operation. Lamp is off

when stopped.

Although it flashes when operating the protec-

tion device or abnormal time.

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CORRECT USAGE

When you use the air conditioner for the first time or when you change the SET DATA value, follow the proce-

dure below. From the next time, the operation displayed on the remote controller will start by pushing the

button only.

Preparation

Turn on the main power switch and/or the leakage breaker.

• When the power supply is turned on, a partition line is displayed on the display part of the remote controller.

After the power supply is turned on, the remote controller does not accept an operation for approx. 1 minute,

but it is not a failure.

REQUIREMENT

• While using the air conditioner, operate it only with

button without turning off the main

power switch and the leak breaker.

UNIT

SET

Push

button.

The operation lamp goes on, and the operation starts.

Select an operation mode with the “MODE” button.

AUTO

HEAT

DRY

COOL

FAN

One push of the button, and the display

changes in the order shown on the right.

• In HEAT

mode, if the room temperature reaches to the set temperature, the outdoor unit stops and

the air flow becomes LOW and the air volume decreases.

• In the defrost mode, the fan stops so that cool air is not discharged and PRE-DEF

is displayed.

Select air volume with “FAN ” button.

AUTO

HIGH

MED.

LOW

One push of the button, and the display

changes in the order shown on the right.

• When air volume is “AUTO

”, air volume differs according to the room temperature.

• In DRY mode, “AUTO

” is displayed and the air volume is LOW.

• In heating operation, if the room temperature is not heated sufficiently with VOLUME “LOW ” opera-

tion, select “MED. ” or “HIGH ” operation.

Determine the set up temperature by pushing the “TEMP.

” or “TEMP.

” button.

Stop

Push

button.

The operation lamp goes off, and the operation stops.

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AUTOMATIC OPERATION (Auto Changeover)

When you set the air conditioner in

mode or switch over from AUTO operation because of some settings

change, it will automatically select either cooling, heating, or fan only operation depending on the indoor

temperature.

Start

button

Push this button to start the air conditioner.

Mode select button (MODE)

Select Auto.

Temperature button

Set the desired temperature.

• In case of cooling, start the operation after approx. 1 minute.

• In case of heating, the operation mode is selected in accordance with the room temperature and operation

starts after approximately 3 to 5 minutes.

• When you select the Auto mode, it is unnecessary to set the fan speed. The FAN speed display will show

AUTO and the fan speed will be automatically controlled.

• After the heating operation has stopped, FAN operation may continue for approx. 30 seconds.

• When the room temperature reaches the set temperature and the outdoor unit stops, the supper low wind is

discharged and the air volume decreases excessively. During defrost operation, the fan stops so that cool

air is not discharged and “HEAT READY” is displayed.

• If the Auto mode is uncomfortable, you can select the desired conditions manually.

NOTE

When restarting the operation after stop

• When restarting the operation immediately after stop, the air conditioner does not operate for approx. 3

minutes to protect the machine.

Stop

Push

button.

Push this button again to stop the air conditioner.

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ADJUSTMENT OF WIND DIRECTIONd

• When the air conditioner stops, the flap (adjustment plate of up/down wind direction) directs downward

automatically.

• When the heating operation is in READY states, the flap (adjustment plate of up/down wind direction) directs

upward.The swinging starts after HEAT READY status cleared, SWING

controller even if the heating operation is in READY status.

is displayed on the remote

How to set up the wind direction

Push

during operation.

The wind direction changes for every push of the button.

In HEAT operation

Direct the flap (adjustment plate of up/down wind direction) downward. If directing

at upward, hot air may not come to the foot.

Initial setup

In COOL/DRY operation

Direct the flap (adjustment plate of up/down wind direction) upward. If directing it

downward, the dew may from on the surface of the air discharge port and may

drop down.

Initial setup

How to start swinging

Push

, set the flap (adjustment

plate of up/down wind direction) direction

to the lowest position, and then push

again.

UNIT

SWING

is displayed and the up/down wind

direction is automatically selected.

SET

How to stop swinging

Push SWING/WIND again while the flap is

swinging.

In FAN operation

In all modes

• The flap stops at a position when you push.

After then, if pushing

, the wind

direction descends from the highest position.

• In COOL/DRY operation, the flap does not

stop as it directs downward. If stopping the

flap as it directs downward during swing

operation, it stops after moving to the 3^rd

position from the highest position.

Series of

operation

Initial setup

Display when stopping the swing

Fan/Heat

operation

Cool/Dry

operation

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TIMER OPERATION

A type of timer operation can be selected from the following three types.

OFF timer

:The operation stops when the time of timer has reached the set time.

Repeat OFF timer : Every time, the operation stops after the set time has passed.

ON timer

:The operation starts when the time of timer has reached the set time.

Timer operation

UNIT

SET

PushTIMER SET button.

• The timer display (type) changes for every

push of the button.

OFF

• SET DATA and

display flashes.

(OFF timer)

(Repeat OFF timer)

(ON timer)

No display

Push

to select “SETTIME”.

For every push of

button, the set time increases in the unit of 0.5 hr (30 minutes).

The maximum set time is 72.0 hr.

For every push of

button, the set time decreases in the unit of 0.5 hr (30 minutes).

The minimum set time is 0.5 hr.

Push SET button.

• SET DATA display disappears and

display goes on.

(When ON timer is activated, time is displayed, and after time of the timer has been up, displays other

than ON disappear.)

Cancel of timer operation

Push CL button.

• TIMER display disappears.

NOTICE

• When the operation stops after the timer reached the preset time, the Repeat OFF timer resumes the

operation by pushing

the set time.

button and stops the operation after the time of the timer has reached

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HINTS FOR ECONOMICAL OPERATION

Maintain room temperature at comfortable level

Clean air filters

The clogged air filter impairs the performance of the air conditioner.

Never open doors and windows more often than necessary

To keep cool or warm air in the room, never open doors and windows more often than necessary.

Window curtains

In cooling, close the curtains to avoid direct sunlight.

In heating, close the curtains to keep the heat in.

Get uniform circulation of room air

Adjust the air flow direction for the even circulation of room air.

Gee, chilly

Control

Clean, please.

Please close

Blows upward

Air flow adjustment

Cool and

dry air

Warm

air

Blows downward

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MAINTENANCE

Cleaning of remote controller

CAUTION

• Use a dry cloth to wipe the remote controller.

• A cloth dampened with cold water may be used on the indoor unit if

it is very dirty.

• Never use a damp cloth on the remote controller.

• Do not use a chemically-treated duster for wiping or leave such

materials on the unit for long. It may damage or fade the surface of

the unit.

• Do not use benzine, thinner, polishing powder, or similar solvents for

cleaning. These may cause the plastic surface to crack or deform.

If you do not plan to use the unit for more than 1 month

(1) Operate the fan for 3 to 4 hours to dry inside the unit

• Operate “FAN ONLY” mode with set temperature 30°C.

(2) Stop the air conditioner and turn off the main power switch or the

circuit breaker.

Checks before operation

(1) Check that the air filters are installed.

(2) Check that the air outlet or inlet is not blocked.

(3) Turn on the main power switch or the circuit breaker for the mains AC

outlet to turn on the air conditioner.

FAN ONLY operation or

thermo.-off operation

WARNING

Cleaning of the air filter and other parts of the air filter involves dangerous work in high places, so be sure

to have a service person do it.

Do not attempt it yourself.

NOTE

For Air conditioning system which is operated regularly, cleaning and maintenance of the indoor/outdoor

units are strongly recommended.

As a general rule, if an indoor unit is operated for about 8 hours daily, the indoor/outdoor units will need to

be cleaned at least once every 3-month. This cleaning and maintenance shall be carried out by a quali-

fied person.

Failure to clean the indoor/outdoor units regularly will result in poor performance, icing, water leaking and

even compressor failure.

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AIR CONDITIONER OPERATIONS AND PERFORMANCE

3 minutes protection function

3-minutes protection function prevents the air conditioner from starting for initial 3 minutes after the main

power switch/circuit breaker is turned on for re-starting the air conditioner.

Power failure

Power failure during operation will stop the unit completely.

• To restart the operation, push the START/STOP button on the remote controller.

• Lightning or a wireless car telephone operating nearby may cause the unit to malfunction. Turn off the main

power switch or circuit breaker and then turn them on again. Push the START/STOP button on the remote

controller to restart.

Heating characteristics

Preheating operation

The air conditioner will not deliver warm air immediately after it is turned on. Warm air will start to flow out

after approximately 5 minutes when the indoor heat exchanger warmed up.

Warm air control (In heating operation)

When the room temperature reaches the set temperature, the fan speed is automatically reduced to prevent

to blow cold draft. At this time, the outdoor unit will stop.

Defrosting operation

If the outdoor unit is frosted during the heating operation, defrosting starts automatically (for approximately

2 to 10 minutes) to maintain the heating capacity.

• The fans in both indoor and outdoor units will stop during the defrosting operation.

• During the defrosting operation, the defrosted water will be drained from the bottom plate of the outdoor

unit.

Heating capacity

In the heating operation, the heat is absorbed from the outside and brought into the room. This way of heating

is called heat pump system. When the outside temperature is too low, it is recommended to use another

heating apparatus in combination with the air conditioner.

Attention to snowfall and freeze on the outdoor unit

• In snowy areas, the air inlet and air outlet of the outdoor unit are often covered with snow or frozen up.

If snow or freeze on the outdoor unit is left as it is, it may cause machine failure or poor warming.

• In cold areas, pay attention to the drain hose so that it perfectly drains water without water remaining inside

for freeze prevention. If water freezes in the drain hose or inside the outdoor unit, it may cause machine

failure or poor warming.

Air conditioner operating conditions

For proper performance, operate the air conditioner under the following temperature conditions:

Cooling

Outdoor temperature

Room temperature

: –5°C to 43°C

operation

: 21°C to 32°C (Dry valve temp.), 15°C to 24°C (Wet valve temp.)

Room relative humidity – less than 80 %. If the air conditioner operates

in excess of this figure, the surface of the air conditioner may cause dewing.

CAUTION

Dry operation Outdoor temperature

Room temperature

: 15°C to 43°C (Maximum suction air temp. 46°C)

: 17°C to 32°C

Heating

operation

Outdoor temperature

Room temperature

: –15°C to 15°C (Wet valve temp.)

: 15°C to 28°C (Dry valve temp.)

If air conditioner is used outside of the above conditions, safety protection may work.

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RE-INSTALLATION

DANGER

Ask the dealer or an installation professional to re-install the air conditioner to a new place or

move it to another place and to observe the following items.

If the air conditioner is inappropriate installed by yourself, it may cause electric shock or fire.

Do not install the air conditioner in the following places

• Do not install the air conditioner in any place within 1 m from a TV, stereo, or radio set. If the unit is installed

in such place, noise transmitted from the air conditioner affects the operation of these appliances.

• Do not install the air conditioner near a high frequency appliance (sewing machine or massager for business

use, etc.), otherwise the air conditioner may malfunction.

• Do not install the air conditioner in a humid or oily place, or in a place where steam, soot, or corrosive gas is

generated.

• Do not install the air conditioner in a salty place such as seaside area.

• Do not install the air conditioner in a place where a great deal of machine oil is used.

• Do not install the air conditioner in a place where it is usually exposed to strong wind such as in seaside

area or on the roof or upper floor of a building.

• Do not install the air conditioner in a place where sulfureous gas generated such as in a spa.

• Do not install the air conditioner in a vessel or mobile crane.

Be careful with noise or vibrations

• Do not install the air conditioner in a place where noise by outdoor unit or hot air from its air outlet annoys

your neighbors.

• Install the air conditioner on a solid and stable foundation so that it prevents transmission of resonating,

operation noise and vibration.

• If one indoor unit is operating, some sound may be audible

from other indoor units that are not operating.

TROUBLES AND CAUSES

CAUTION

If any of the following conditions occur, turn off the main power supply switch and immediately contact the

dealer :

• The operation lamps flash at short intervals (5 Hz) even though you have tried turning off the power

supply and turning on again after 2 or 3 minutes.

• Switch operation does not work properly.

• The main power fuse often blows out, or the circuit breaker is often activated.

• A foreign matter or water fall inside the air conditioner.

• Any other unusual conditions are observed.

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Before you ask for servicing or repairs, check the following points.

Inoperative

• The main power switch is turned off.

• The circuit breaker is activated to cut off power supply.

• The main power fuse has blown out.

• Stoppage of electric current.

Does not cool well or heat well

• The air inlet and/or outlet of the outdoor unit is blocked.

• Doors or windows are opened.

• The fan speed is set to low.

• The air conditioner is set in the DRY mode.

• The set temperature is too high. (In cooling operation)

• The set temperature is too low. (In heating operation)

Indoor unit or outdoor unit makes a strange noise.

• When the temperature suddenly changes, the indoor or outdoor unit

occasionally makes a strange noise because of expansion/

contraction of parts or change of refrigerant flow.

The room air is smelly or a bad odor comes from the air conditioner.

• Smells impregnated in the walls‚ carpets, furniture, clothing, or furs, come out.

Outdoor unit is frosted in heating operation.

Water drains from outdoor unit.

• The outdoor unit is sometimes frosted in heating operation.

In that case, the unit automatically performs defrosting

(for 2 to 10 minutes) for increasing the heating efficiency.

Calm

• In defrosting operation, both the indoor and outdoor units stop air flow.

• Hiss sound is heard when flow of the refrigerant is changed for defrosting.

• Resultant water of automatic defrosting in heating operation drains from

outdoor unit.

Air flow changes though the FAN button is not set to the AUTO mode.

• When the temperature of blown air drops in heating operation,

the air conditioner automatically changes or stops air flow from the

indoor unit not to make persons in the room feel chilly.

• Air flow from the indoor unit is occasionally changed in the cooling operation.

A white mist of chilled air or water is generated from the outdoor unit.

• The indoor unit in cooling operation or the outdoor unit in defrosting

operation occasionally steams.

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Accessory parts and Parts to be procured locally

r Accessory parts

Part name

Q’ty Shape

Usage

Part name

Q’ty

Shape

Usage

Installation

Manual

This

(Be sure to hand over to customers)

manual

Washer

For hanging-down unit

Heat insulating

pipe

For heat insulation of pipe

connecting section

Hose band

For connecting drain pipe

Installation

pattern

For confirmation of ceiling opening

and main unit position

——

For adjusting core-out of drain

pipe

Flexible hose

Heat insulator

Installation

gauge

For positioning of ceiling position

(united with installation pattern)

For sealing of wire connecting port

(Be sure to hand over to customers)

Pattern fixing

screw

M5 x 16L For attach the installation pattern

Owner’s

Manual

For heat insulation of drain

connecting section

Heat insulator

Part name

Q’ty Shape

Usage

Part name

Q’ty

Shape

Usage

Standard wired

remote controller

Model

RBC-AMT21E

Model

RBC-U21PG (W)-E

Ceiling panel

r Parts to be procured locally

Connecting pipe (Liquid side)

(6.35mm (diam.), Nominal (diam.) 1/4” thick 0.8mm)

RAV-SM560UT-E, RAV-SM560AT-E

Connecting cable (indoor and outdoor cable)

H07RN-F or 245IEC66 (1.5mm² or more)

(9.52mm (diam.), Nominal (diam.) 3/8” thick 0.8mm)

RAV-SM800UT-E, RAV-SM800AT-E

RAV-SM1100UT-E, RAV-SM1100AT-E

RAV-SM1400UT-E, RAV-SM1400AT-E

Thermal insulation for refrigerant pipe

(10mm or more, thermal insulating foam polyethylene)

Thermal insulation for drain pipe

(10mm or more, foam polyethylene)

Connecting pipe (Gas side)

(12.7mm (diam.), Nominal (diam.) 1/2” thick 0.8mm)

RAV-SM560UT-E, RAV-SM560AT-E

Drain pipe (Outer 26mm (diam.))

Tapes

(15.9mm (diam.), Nominal (diam.) 5/8” thick 1.0mm)

RAV-SM800UT-E, RAV-SM800AT-E

RAV-SM1100UT-E, RAV-SM1100AT-E

RAV-SM1400UT-E, RAV-SM1400AT-E

Grounding cable (2.0mm (diam.) or more)

Power supply cord

2.5mm² (H07RN-F or 245IEC66) or 3.5mm² (AWG-12)

Download from Www.Somanuals.com. All Manuals Search And Download.

PRECAUTIONS FOR SAFETY

• Ensure that all Local, National and International regulations are satisfied.

• Read this “PRECAUTIONS FOR SAFETY” carefully before Installation.

• The precautions described below include the important items regarding safety. Observe them without fail.

• After the installation work, perform a trial operation to check for any problem.

Follow the Owner’s Manual to explain how to use and maintain the unit to the customer.

• Turn off the main power supply switch (or breaker) before the unit maintenance.

• Ask the customer to keep the Installation Manual together with the Owner’s Manual.

CAUTION

New Refrigerant Air Conditioner Installation

• THIS AIR CONDITIONER ADOPTS THE NEW HFC REFRIGERANT (R410A) WHICH DOES NOT

DESTROY OZONE LAYER.

The characteristics of R410A refrigerant are ; easy to absorb water, oxidizing membrane or oil, and its pressure

is approx. 1.6 times higher than that of refrigerant R22. Accompanied with the new refrigerant, refrigerating oil

has also been changed. Therefore, during installation work, be sure that water, dust, former refrigerant, or

refrigerating oil does not enter the refrigerating cycle.

To prevent charging an incorrect refrigerant and refrigerating oil, the sizes of connecting sections of charging

port of the main unit and installation tools are charged from those for the conventional refrigerant.

Accordingly the exclusive tools are required for the new refrigerant (R410A).

For connecting pipes, use new and clean piping designed for R410A, and please care so that water or dust does

not enter. Moreover, do not use the existing piping because there are problems with pressure-resistance force

and impurity in it.

CAUTION

To Disconnect the Appliance from Main Power Supply.

This appliance must be connected to the main power supply by means of a switch with a contact separation of

at least 3 mm.

The installation fuse (25A D type

) must be used for the power supply line of this conditioner.

WARNINGS

• Ask an authorized dealer or qualified installation professional to install/maintain the air

conditioner.

Inappropriate installation may result in water leakage, electric shock or fire.

• Turn off the main power supply switch or breaker before attempting any electrical work.

Make sure all power switches are off. Failure to do so may cause electric shock.

• Connect the connecting cable correctly.

If the connecting cable is connected in a wrong way, electric parts may be damaged.

• When moving the air conditioner for the installation into another place, be very careful not

to enter any gaseous maller other than the specified refrigerant into the refrigeration cycle.

If air or any other gas is mixed in the refrigerant, the gas pressure in the refrigeration cycle becomes

abnormally high and it resultingly causes pipe burst and injuries on persons.