Panasonic Cu He9dke User Manual

Order No. RAC0504012C2

Air Conditioner

CS-HE9DKE CU-HE9DKE

CS-HE12DKE CU-HE12DKE

CONTENTS

Page

1 Features

7.2. Outdoor Unit

2 Functions

8 Electronic Circuit Diagram

8.1. Indoor Unit / Remote Controller

8.2. Outdoor Unit

2.1. Remote Control

2.2. Indoor Unit

2.3. Outdoor unit

9 Operation Details

3 Product Specifications

4 Dimensions

9.1. Basic Function

9.2. Indoor Power Relay Control

9.3. Room Temperature Control (Compressor Control)

9.4. Airflow Direction Control

9.5. Quiet operation (Cooling Mode / Cooling area of Dry

Mode)

4.1. Indoor Unit / Remote Control

4.2. Outdoor Unit

5 Refrigeration Cycle Diagram

6 Block Diagram

7 Wiring Diagram

7.1. Indoor Unit

9.6. Indoor Fan Control

9.7. Powerful Operation

rights reserved. Unauthorized copying and

distribution is a violation of law.

CS-HE9DKE CU-HE9DKE / CS-HE12DKE CU-HE12DKE

2 Functions

2.1. Remote Control

CS-HE9DKE CU-HE9DKE / CS-HE12DKE CU-HE12DKE

2.2. Indoor Unit

CS-HE9DKE CU-HE9DKE / CS-HE12DKE CU-HE12DKE

2.3. Outdoor unit

CS-HE9DKE CU-HE9DKE / CS-HE12DKE CU-HE12DKE

3 Product Specifications

Unit

CS-HE9DKE

CU-HE9DKE

Cooling Capacity

2.60 (0.60 - 3.00)

kcal/h

BTU/h

2,240 (520 - 2,580)

8,870 (2,050 - 10,200)

Heating Capacity

kcal/h

BTU/h

3.60 (0.60 - 6.50)

3,100 (520 - 5,590)

12,300 (2,050 - 22,080)

Moisture Removal

Power Source

l/h

Pint/h

1.5

(3.2)

Phase

Cycle

Single

230/240

Airflow Method

OUTLET

INTAKE

SIDE VIEW

TOP VIEW

Air Volume

Indoor Air (Lo)

Indoor Air (Me)

Indoor Air (Hi)

m³/min (cfm)

dB (A)

Cooling; 5.2 (180)

Heating; 6.3 (220)

—

Cooling; 7.9 (280)

Heating; 8.8 (310)

Cooling; 10.5 (370)

Heating; 11.5 (410)

Cooling; 23.8 (840)

Heating; 23.1 (820)

Cooling; High 39, Low 26

Heating; High 40, Low 27

Cooling; 46

Heating; 47

Noise Level

Power level dB

Cooling; High 50

Heating; High 51

Cooling; High 59

Heating; High 60

Electrical Data

Input

Cooling; 510 (120 - 700)

Heating; 690 (115 - 1,720)

Running Current

Cooling; 2.6

Heating; 3.5

EER

COP

Starting Current

W/W (kcal/hw), BTU/hw

Cooling; 5.10 (4.39), 17.4

Heating; 5.22 (4.49), 17.8

3.6

Piping Connection Port

(Flare piping)

inch

G ; Half Union 3/8”

L ; Half Union 1/4”

G ; 3-way valve 3/8”

L ; 2-way valve 1/4”

Pipe Size

(Flare piping)

inch

G (gas side) ; 3/8”

L (liquid side) ; 1/4”

G (gas side) ; 3/8”

L (liquid side) ; 1/4”

CS-HE9DKE CU-HE9DKE / CS-HE12DKE CU-HE12DKE

Unit

CS-HE9DKE

CU-HE9DKE

Drain

Hose

Inner diameter

Length

—

0.65

1.8 m

Power Cord Length

Number of core-wire

Dimensions

3-core wires × 1.0 mm²

11 - 23/32 (298)

34 - 8/32 (870)

7 - 27/32 (199)

24 (11)

—

21 - 1/4 (540)

30 - 23/32 (780)

11 - 3/8 (289)

79 (36)

Involute scroll

Brushless (4-poles)

750

Height

Width

Depth

inch (mm)

lb (kg)

Net Weight

Compressor

Type

Output

—

Motor

Rated

Air Circulation

Type

Material

Type

Cross-flow Fan

AS + Glass Fiber 20%

Transistor (8-poles)

—

Propeller Fan

P.P

Induction (8-poles)

—

Motor

Input

Rate Output

Lo (Cool/Heat)

Me (Cool/Heat)

Hi (Cool/Heat)

660 / 750

880 / 950

1,090 / 1,150

Evaporator

Copper

—

Fan Speed

rpm

790 / 770

Condenser

Copper

Heat Exchanger

Description

Tube material

Fin material

Fin Type

Aluminium (Pre Coat)

Slit Fin

Aluminium (Blue Coated)

Corrugated Fin

Row / Stage

(Plate fin configuration, forced draft)

3 / 16

2 / 24

16.5

FPI

Size (W × H × L)

Refrigerant Control Device

Refrigeration Oil

671 × 322.6 × 30.9

816.9 × 504 × 36.4

Capillary Tube

RB68A (400)

1, 190 (42.0)

Electronic Control

—

(c.c)

g (oz)

Refrigerant (R410A)

Thermostat

Protection Device

Electronic Control

Air Filter

Material

Style

P.P.

Honeycomb

•

Specifications are subject to change without notice for further improvement.

CS-HE9DKE CU-HE9DKE / CS-HE12DKE CU-HE12DKE

Unit

CS-HE12DKE

CU-HE12DKE

3.50 (0.60 - 4.00)

Cooling Capacity

Heating Capacity

kcal/h

BTU/h

3,010 (520 - 3,440)

11,900 (2,050 - 13,600)

kcal/h

BTU/h

4.80 (0.60 - 7.70)

4,130 (520 - 6,620)

16,400 (2,050 - 26,100)

Moisture Removal

Power Source

l/h

Pint/h

2.0

(4.2)

Phase

Cycle

Single

230/240

Airflow Method

OUTLET

INTAKE

SIDE VIEW

TOP VIEW

Air Volume

Indoor Air (Lo)

Indoor Air (Me)

Indoor Air (Hi)

m³/min (cfm)

dB (A)

Cooling; 6.2 (220)

Heating; 7.8 (280)

—

Cooling; 8.4 (300)

Heating; 10.0 (350)

Cooling; 11.3 (400)

Heating; 12.5 (440)

Cooling; 23.8 (840)

Heating; 23.8 (840)

Cooling; High 42, Low 29

Heating; High 42, Low 33

Cooling; 48

Heating; 50

Noise Level

Power level dB

Cooling; High 53

Heating; High 53

Cooling; High 61

Heating; High 63

Electrical Data

Input

Cooling; 850 (120 - 1,050)

Heating; 1,040 (115 - 2,280)

Running Current

Cooling; 4.2

Heating; 5.0

EER

COP

Starting Current

W/W (kcal/hw), BTU/hw

Cooling; 4.12 (3.54), 14.0

Heating; 4.62 (3.97), 15.8

Piping Connection Port

(Flare piping)

inch

G ; Half Union 1/2”

L ; Half Union 1/4”

G ; 3-way valve 1/2”

L ; 2-way valve 1/4”

Pipe Size

(Flare piping)

inch

G (gas side) ; 1/2”

L (liquid side) ; 1/4”

G (gas side) ; 1/2”

L (liquid side) ; 1/4”

Drain

Hose

Inner diameter

Length

0.65

—

Power Cord Length

Number of core-wire

1.8 m

—

3-core wires × 1.5 mm²

CS-HE9DKE CU-HE9DKE / CS-HE12DKE CU-HE12DKE

Unit

CS-HE12DKE

11 - 23/32 (298)

34 - 8/32 (870)

7 - 27/32 (199)

24 (11)

CU-HE12DKE

21 - 1/4 (540)

30 - 23/32 (780)

11 - 3/8 (289)

82 (37)

Dimensions

Height

Width

Depth

inch (mm)

lb (kg)

Net Weight

Compressor

Type

Output

—

Involute scroll

Brushless (4-poles)

1,100

Motor

Rated

Air Circulation

Type

Cross-flow Fan

Propeller Fan

Material

Type

Input

AS + Glass Fiber 20%

Transistor (8-poles)

—

P.P

Motor

Induction (8-poles)

—

Rate Output

Lo (Cool/Heat)

Me (Cool/Heat)

Hi (Cool/Heat)

740 / 870

920 / 1,050

1,110 / 1,230

Evaporator

Copper

—

Fan Speed

rpm

790 / 790

Condenser

Copper

Heat Exchanger

Description

Tube material

Fin material

Fin Type

Aluminium (Pre Coat)

Slit Fin

Aluminium (Blue Coated)

Corrugated Fin

Row / Stage

(Plate fin configuration, forced draft)

3 / 16

2 / 24

16.5

FPI

Size (W × H × L)

Refrigerant Control Device

Refrigeration Oil

671 × 322.6 × 30.9

Capillary Tube

RB68A (400)

1,160 (40.9)

Electronic Control

—

(c.c)

g (oz)

Refrigerant (R410A)

Thermostat

Protection Device

Electronic Control

Air Filter

Material

Style

P.P.

Honeycomb

•

Specifications are subject to change without notice for further improvement.

CS-HE9DKE CU-HE9DKE / CS-HE12DKE CU-HE12DKE

4 Dimensions

4.1. Indoor Unit / Remote Control

CS-HE9DKE CU-HE9DKE / CS-HE12DKE CU-HE12DKE

4.2. Outdoor Unit

CS-HE9DKE CU-HE9DKE / CS-HE12DKE CU-HE12DKE

5 Refrigeration Cycle Diagram

CS-HE9DKE CU-HE9DKE / CS-HE12DKE CU-HE12DKE

6 Block Diagram

CS-HE9DKE CU-HE9DKE / CS-HE12DKE CU-HE12DKE

7 Wiring Diagram

7.1. Indoor Unit

CS-HE9DKE CU-HE9DKE / CS-HE12DKE CU-HE12DKE

7.2. Outdoor Unit

CS-HE9DKE CU-HE9DKE / CS-HE12DKE CU-HE12DKE

8 Electronic Circuit Diagram

8.1. Indoor Unit / Remote Controller

CS-HE9DKE CU-HE9DKE / CS-HE12DKE CU-HE12DKE

8.2. Outdoor Unit

CS-HE9DKE CU-HE9DKE / CS-HE12DKE CU-HE12DKE

9 Operation Details

9.1. Basic Function

Inverter control, which equipped with a microcomputer in determining the most suitable operating mode as time passes,

automatically adjusts output power for maximum comfort always. In order to achieve the suitable operating mode, the

microcomputer maintains the set temperature by measuring the temperature of the environment and performing temperature

shifting. The compressor at outdoor unit is operating following the frequency instructed by the microcomputer at indoor unit that

judging the condition according to internal setting temperature and intake air temperature.

9.1.1.

Internal Setting Temperature

Once the operation starts, remote control setting temperature will be taken as base value for temperature shifting processes.

These shifting processes are depending on the air conditioner settings and the operation environment. The final shifted value

will be used as internal setting temperature and it is updated continuously whenever the electrical power is supplied to the unit.

Table (a): Auto Operation Mode Setting

Mode Shift:

Cooling/Dry → Heating

Heating → Cooling/Dry

Temperature Shift (°C)

-2.0

+2.0

CS-HE9DKE CU-HE9DKE / CS-HE12DKE CU-HE12DKE

Table (b): Outdoor Air Temperature Shifting

Mode: Outdoor Temperature, X (°C):

Temperature Shift (°C)

CS-HE9DKE

0.00

CS-HE12DKE

0.00

Cooling/Soft Dry

0.00

Heating

0.00

+0.50

+1.00

+1.50

+1.00

+1.25

+2.00

Table (c): Fan Speed Shifting

Mode:

Fan Speed:

Temperature Shift (°C)

Cooling

Soft Dry

Heating

All

+1.25

+1.0

Hi, Me-, Me, Me+, Auto

+0.25 (CS-HE9DKE)

+0.50 (CS-HE12DKE)

Table (d): Start-Up Shifting

Mode within 60 Minutes from Start-up:

Temperature Shift (°C)

Cooling/Soft Dry

Heating

-1.0

+2.0

9.2. Indoor Power Relay Control

The Power Relay turns on under the following conditions.

1. For three minutes, when plugged in the A/C or the Error Reset button on remote controller is pressed.

2. During Installation Check Mode and following for three minutes after checking.

3. During On-timer sampling and during Preliminary operation.

4. During Operation and following for three minutes after the operation is stopped.

5. During Auto Operation, Test run, Forced Heating or Odour Removal Operation and following for three minutes after the

operation is stopped.

CS-HE9DKE CU-HE9DKE / CS-HE12DKE CU-HE12DKE

9.3. Room Temperature Control (Compressor Control)

Operating frequency of a compressor is decided according to temperature differences between remote controller setting and

room temperatures. By adding a relative method, based on current frequency, which gives frequency changes, a room

temperature is adjusted.

9.3.1.

Cooling Operation

9.3.1.1. Thermostat Control

•

[Thermostat-ON Temperature] = [Intake Air Temperature] -

[Remote Controller Setting Temperature] < -1.5°C

[Thermostat-ON Temperature] = [Intake Air Temperature

after 2 minutes] - [Remote Controller Setting Temperature]

< -1.5°C

•

When Room Temperature is below Thermostat-OFF

Temperature for 3 minutes or more, it turns to Thermostat-

OFF.

Cooling power

Maximum power

Rated power

CS-HE9DKE

3.0kW

CS-HE12DKE

4.0kW

The maximum power is applied only for the first 30 minutes

of the operation, after that, rated power is applied. If the

POWERFUL Switch is pressed during operation, the

maximum power will be applied for 30 minutes.

2.6kW

0.6kW

3.5kW

0.6kW

Minimum power

9.3.2.

Dry Operation

9.3.2.1. Thermostat Control

•

The unit can be operated in the Scrolling Dry Operation by selecting Cooling DRY mode with the DRY button on the remote

controller.

•

[Thermostat-OFF Temperature] = [Intake Air Temperature] - [Remote Controller Setting Temperature] > -2.0°C

When Room Temperature exceeds Thermostat-OFF Temperature for 3 minutes or more, it turns to Thermostat-OFF.

→

The fan speed setting is selectable.

Five stages manually and one stage automatically (QUIET). (Same as Cooling mode.)

9.3.3.

Heating Operation

9.3.3.1. Thermostat Control

•

[Thermostat-OFF Temperature] = [Intake Air Temperature]

- [Remote Controller Setting Temperature] > +2.0°C

[Thermostat-ON Temperature] = [Intake Air Temperature

after 2 minutes] - [Remote Controller Setting Temperature]

< +2.0°C.

•

When Room Temperature exceeds Thermostat-OFF

Temperature for 3 minutes or more, it turns to Thermostat-

OFF.

Cooling power

Maximum power

Rated power

CS-HE9DKE

6.5kW

CS-HE12DKE

7.7kW

When operation in rated power continues for 3 minutes or

more, it turns to the maximum power.

3.6kW

4.8kW

Minimum power

0.6kW

CS-HE9DKE CU-HE9DKE / CS-HE12DKE CU-HE12DKE

9.4. Airflow Direction Control

9.4.1.

Horizontal and Vertical Directions

Vertical louver is controlled by remote control: the Vertical Airflow Direction button on the remote controller and by each operation

mode, as shown in the table below.

Cooling Operation Mode

Manual Operation

Vertical Automatic Operation

Powerful-ON

• After Powerful is turned on, the louver is

fixed at 26° for 5 minutes or until the Neural

Control is stabilized.

• The louver swings between the upper limit

and the lower limit.

• Five-level setting is possible with the remote

controller.

• After the Neural Control is stabilized, the

louver is fixed at 12°.

Dry Operation Mode

Manual Operation

Vertical Automatic Operation

Power-ON (Automatic Operation)

• The louver is fixed at 12°.

• Five-level setting is possible with the remote

controller.

Ion Operation Mode

Manual Operation

Vertical Automatic Operation

Power-ON (Automatic Operation)

• The louver is fixed at 12°.

• The louver swings between the upper limit

and the lower limit.

• Five-level setting is possible with the remote

controller.

CS-HE9DKE CU-HE9DKE / CS-HE12DKE CU-HE12DKE

Heating Operation Mode

Manual Operation

Vertical Automatic Operation

Powerful-ON

1. When heat exchanger temperature is less

than 32°C.

1. When heat exchanger temperature is less

than 32°C.

• Five-level setting is possible with the remote

controller.

2. When heat exchanger temperature is

between 32°C and 56°C.

2. Quick Heating Operation

3. When heat exchanger temperature is 56°C

or more.

3. Warm Heating Operation

4. When heat exchanger temperature is 56°C

or more.

•

The vertical louver is closed when the unit is turned off with the remote controller. (Stop position)

The vertical louver is fully opened and move to the setting position when the unit is turned on with the remote controller.

The vertical louver remains at open position when the unit is turned off during operation.

The values in the parentheses ( ) are for the models: CS-HE12DKE.

CS-HE9DKE CU-HE9DKE / CS-HE12DKE CU-HE12DKE

9.4.2.

Horizontal Airflow Direction Control

Operation

Mode

Horizontal Automatic Operation

Operation for 5 min. after Powerful-ON or

the Neural Control is stabilized.

Cooling

• The louver horizontally swings at a fixed

cycle.

Horizontal Automatic Operation

Operation for 5 min. after Powerful-ON

Dry

• The louver horizontally swings at a fixed • The louver horizontally swings at a fixed

cycle. cycle.

Horizontal Automatic Operation

Operation after Powerful-ON

Ion

• The louver horizontally swings at a fixed • The louver horizontally swings at a fixed

cycle. cycle.

Horizontal Automatic Operation

Operation after Powerful-ON

Heating

When heat exchanger

temperature is below 32°C.

When heat exchanger is

between 32°C (, incl.) and 56°C

(, excl.)

When the Neural Control is stabilized.

In Quick Warm Operation

• The louver horizontally swings at a fixed

cycle.

When the Neural Control is not stabilized.

In Warm Heating Operation

When heat exchanger

temperature is 56°C or more.

CS-HE9DKE CU-HE9DKE / CS-HE12DKE CU-HE12DKE

9.5. Quiet operation (Cooling Mode / Cooling area of Dry Mode)

A. Purpose

To provide quiet cooling operation at limited fan speed which lower than Manual Low Fan Speed. (See 9.6 Fan Motor Operation

table.)

•

It improves the operation noise approximately 3dB compared to Manual Low Fan Speed.

B. Control condition

a. Quiet operation start condition

•

When QUIET button at remote control is pressed.

(QUIET is approved on LED at remote control.)

b. Quiet operation stop condition

•

One of the following conditions is satisfied, QUIET operation is to be concealed.

1. Repressing QUIET button during quiet operation.

2. Pressing POWERFUL button.

3. Pressing FAN SPEED button, the operation is to be shifted to the selected fan speed.

4. Changing the operation mode to IONIZER only operation.

5. Stopping the operation by OFF/ON button and/or OFF Timer.

9.5.1.

Quiet operation under Dry operation (Dry area at Dry Mode)

Automatic Fan Speed (Dry operation)

Manual Fan Speed (Dry operation)

CS-HE9DKE CU-HE9DKE / CS-HE12DKE CU-HE12DKE

9.5.2.

Quiet operation (Heating)

A. Purpose

To provide quiet heating operation at limited fan speed which lower than Manual Low Fan Speed. (See 9.6 Fan Motor Operation

table.)

•

It improves the operation noise approximately 3dB compared to Manual Low Fan Speed.

B. Control condition

a. Quiet operation start condition

•

When QUIET button at remote control is pressed.

(QUIET is approved on LED at remote control.)

b. Quiet operation stop condition

•

One of the following conditions is satisfied, QUIET operation is to be concealed.

1. Repressing QUIET button during quiet operation.

2. Pressing POWERFUL button.

3. Pressing FAN SPEED button, the operation is to be shifted to the selected fan speed.

4. Changing the operation mode to IONIZER only operation.

5. Stopping the operation by OFF/ON button and/or OFF Timer.

CS-HE9DKE CU-HE9DKE / CS-HE12DKE CU-HE12DKE

9.6. Indoor Fan Control

9.6.1.

Fan Motor Operation

•

Fan speed is controlled according to operation conditions such as fan speed setting on the remote controller as shown in the

table below.

•

There is a different speed control from setting on the remote controller.

When Dry operation is selected, in the Cooling area, fan speed will be switched to one at Cooling mode and in the Dry area,

it will be switched to one at Dry mode.

CS-HE9DKE

CS-HE12DKE

CS-HE9DKE CU-HE9DKE / CS-HE12DKE CU-HE12DKE

9.6.2.

Cooling Operation

1. Automatic Fan Speed

Odour Cut Control makes fan stop temporarily for 40 seconds at the beginning of unit operation or Thermostat-ON in order to

wash away odour ingredients from heat exchanger with dehumidifying water. Fan operation is repeated every 20 seconds at a

speed of "SLo" (Refer to the “Indoor Fan Control” chapter.) as the graph shown below.

2. Powerful

Unit is automatically operated in Quick Cooling (Fan speed "SHi": Refer to the "Indoor Fan Control” chapter.) in the initial 5

minutes of the operation and after that, switched to Chilly Cooling according to the symmetrical areas.

3. Low noise control

At setting of Fan Speed: "AUTO" (Refer to the “Indoor Fan Control” chapter.), if room temperature reaches a setting

temperature, fan speed will be reduced for the fan noise reduction.

4. Dew Condensation Prevention Control

The maximum frequency for Indoor Unit is decided by the Dew Condensation Prevention Control according to elapsed

operating times. Condition: Indoor unit fan speed is "Me-" or less.

CS-HE9DKE

CS-HE12DKE

Max. Frequency (A) (Hz)

Max. Frequency (B) (Hz)

Max. Frequency (C) (Hz)

• Conditions resolutive

− When remote controller setting temperature or fan speed setting is changed:

− When 420 minutes elapsed:

5. Forced Cooling Operation

Fan speed will be “Hi” (Refer to the “Indoor Fan Control” chapter.) when the units is operated at Forced operation mode.

9.6.3.

Dry Operation

In the cooling mode area, fan speed is the same as cooling operation mode. In the dry mode area, it is switched to "SLo". (Refer

to the “Indoor Fan Control” chapter.) In the Thermostat-OFF, fan stops 5.5 minutes and after that, operates at a speed of "SLo"

(Refer to the “Indoor Fan Control” chapter.). (At manual fan speed) At automatic fan speed operation, fan operates repeatedly

between 90-second stop and 20-second "SLo". At the beginning of unit operation and Thermostat-ON, fan stops 40 seconds.

9.6.4.

Heating Operation

1. Hot Start and Cold Draft

At the beginning of unit operation, when indoor heat exchanger temperature is low, fan will be stopped. When the temperature

is getting high, the unit will be prevented from Cold Draft by increasing fan speed.

2. Automatic fan speed

At automatic fan speed setting, when the heat exchanger temperature is getting high, the unit will be prevented from Cold draft

by increasing fan speed as well as manual fan speed setting. In a fixed fan speed area, fan speed will be controlled to discharge

CS-HE9DKE CU-HE9DKE / CS-HE12DKE CU-HE12DKE

air having a constant temperature.

•

Refer to the “Indoor Fan Control” chapter for fan speed of each model.

3. Thermostat-OFF

In thermostat-OFF, fan will operate repeatedly between the speeds of “SLo” for 20 second and “SSLo” for 100 seconds. (Refer

to the “Indoor Fan Control” chapter.)

4. Forced Heating Operation

In Forced Heating mode operation, fan speed is “Hi”. (Refer to the “Indoor Fan Control” chapter.)

9.7. Powerful Operation

If the POWERFUL button is pressed during operating in Cooling, Heating, Dry or AUTO, the unit always forces to operate in

respective modes (Quick Cooling, Quick Heating and Dry) for 5 minutes, which fan speed is "SHi" even though unit is in each

stable area.

9.7.1.

Cooling Operation

•

Airflow direction, Fan speed and Setting temperature are

optimized.

•

“[Intake Air temperature] - [Remote controller setting

temperature]” is detected every 30 seconds by indication

from indoor unit and controlled to each area.

→

Quick Cooling

Unit forcibly turns to Quick Cooling operation

for 5 minutes after Powerful-ON even through it is in the Chilly

→

Cooling area.Chilly Cooling

Discharge air temperature is

kept low by changing fan speed according to room temperature

and chilly feeling will be produced.

9.7.2.

Dry Operation

•

Airflow direction, Fan speed and Setting temperature are

optimized.

•

“[Intake air temperature] - [Remote controller setting

temperature]” is detected every 30 seconds by indication

from indoor unit and controlled to each area.

→

Quick Cooling

Unit forcibly turns to Quick Cooling operation

for 5 minutes after powerful-ON even through it is in the Chilly

→

Air Cooling area.Chilly Cooling

Discharge air temperature is

kept low by changing fan speed according to room temperature

and chilly feeling will be produced.

CS-HE9DKE CU-HE9DKE / CS-HE12DKE CU-HE12DKE

9.7.3.

Heating Operation

•

Airflow direction, Fan speed and Setting temperature are

optimized.

•

“[Intake Air temperature] - [Remote controller setting

temperature]” is detected every 30 seconds by indication

from indoor unit and controlled to each area.

→

Quick Heating

Unit forcibly turns to Quick Heating operation

for 5 minutes after Powerful-ON even through it is in the Warm

→

Heating area.Warm Heating

Discharge air temperature is

kept high by changing fan speed according to room

temperature and warm feeling will be produced.

9.8. Automatic Operation

•

Operation mode (Cooling, Dry and Heating) is automatically selected.

Operation mode is selected at the beginning of unit operation and every 30 minutes. Temperature, fan speed and airflow

direction are set with the remote controller.

•

During cooling mode operation, if Dry mode is selected in next operation mode selection, the operation will be Cooling Dry.

9.8.1.

Operation Mode Selection

Operation mode is selected according to outdoor air temperature, intake air temperature and setting temperature.

1. "Heating" is selected when outdoor air temperature is below 16°C.

2. "Cooling" is selected when intake air temperature is 25°C or more. (But, when intake air temperature is 16°C or more.)

3. When outdoor air temperature is below 25°C, if remote controller setting temperature is increased, selectable range of

“Heating”, if decreased, selectable range of “Heating” will be extended respectively.

CS-HE9DKE CU-HE9DKE / CS-HE12DKE CU-HE12DKE

9.9. Sleep Timer Operation

•

Sleep timer setting with the remote controller makes the unit automatically turn off on the off-set times (0.5, 1, 2, 3, 5 and 7

hours). Remained time shows every one hour on a display of the remote controller. Remained time disappears when time is up.

•

In 5- and 7-hour sleep timer settings, “Sleep Shift Control" functions in and after 3 hours.

Sleep Shift Control in Cooling Operation

−

Indoor fan speed is set to "Lo". (Refer to the “Indoor Fan Control” chapter for each model.)

A setting temperature is increased by 1°C.

•

Sleep Shift Control in Dry Operation

−

Indoor fan speed is set to "SLo". (Refer to the “Indoor Fan Control” chapter for each model.)

A setting temperature is increased by 1°C.

Sleep Shift Control in Heating Operation

−

Indoor fan speed is set to "Lo-". (Refer to the “Indoor Fan Control” chapter for each model.)

A setting temperature is decreased by 1°C.

9.10. Timer Operation

Preliminary operation in Cooling or Dry operation

On Timer

Outdoor Air

Temperature

Intake Air

Temperature

Preliminary Operation

Starting Time

•

According to air-conditioning load, preliminary operation

is performed to be a set temperature on set time.

Preliminary operation time is as shown in the table on

the right.

35°C or more

—

30 - 35°C

Below 30°C

—

Before 15 min.

Before 10 min.

Before 5 min.

35°C or more

25 - 30°C

Below 25°C

•

Indoor and outdoor fans operate for 30 seconds in 70

minutes before a set time, and outdoor and intake air

temperatures are detected.

Preliminary operation in Heating operation

Outdoor Air

Intake Air

Preliminary Operation

Temperature

5°C or more

—

0 - 5°C

Below 0°C

Temperature

Starting Time

Before 40 min.

Before 45 min.

Before 50 min.

Airflow direction in preliminary operation is followed by

remote controller setting. (Same condition as in normal

operation.) Fan speed in preliminary operation is as

shown in the table on the right.

—

15 °C or more

5 - 15°C

Below 5°C

•

In preliminary operation, deicing judgment is performed

after heating operated for 15 minutes in 50 minutes

before set ON-time. This is because it makes start-up

time short when outdoor air temperature is extremely

low in midwinter.

Fan speed in Preliminary operation

Operation mode

Cooling, Cooling

Dry

Heating

Selected fan speed

Up to Lo

Manual speed

Selected fan

speed

Automatic speed

Up to Lo

9.11. Auto Restart Control

1. When the power supply is cut off during the operation of air conditioner, the compressor will re-operate within three to four

minutes (there are 10 patterns between 2 minutes 58 seconds and 3 minutes 52 seconds to be selected randomly) after power

supply resumes.

2. This type of control is not applicable during ON/OFF Timer setting.

CS-HE9DKE CU-HE9DKE / CS-HE12DKE CU-HE12DKE

9.12. Ionizer Operation

Single Ionizer Operation

•

The unit turns to single Ionizer operation mode by pressing the ION button on the remote controller at stop mode and the

ION LED (Green) on the main unit will light up.

* Temperature setting is not possible during the operation.

Simultaneous Ionizer Operation (Heating, Cooling, Dry and Auto)

•

The unit turns simultaneous Ionizer operation mode by pressing the ION button on the remote controller at each

operation mode (Heating, Cooling, Dry and Auto) and the ION LED (Green) on the main unit will light up. The LED will

be off by pressing the button again, but the unit remains the operation.

* To stop all the operations, press the OFF/ON button on the remote controller.

Single blinking of the ION LED does not indicate Breakdown.

When unit was operated under the condition that a discharge insulation of the Ion generator is deteriorated (Dust, Attached

water, etc.):

If the insulation deterioration of the unit discharge part is big;

Insulation deterioration will be detected in and after 2 seconds from the unit operation starting, and the unit will turn off for 30

minutes and turn on again. When this operation is repeated 24 times, the ION LED will start blinking. But, if the unit operation

is stopped or the Ionizer is operated properly for 10 minutes, the count will be cleared.

Condition resolutive

It can be canceled by stopping the operation during the ION LED blinking.

CS-HE9DKE CU-HE9DKE / CS-HE12DKE CU-HE12DKE

9.13. Oxygen Enrich Operation

9.13.1. Oxygen Enrich System Figure

9.13.2. Indoor Fan Control

Single Oxygen Enrich operation

1. Manual fan speed ............. Not available for the remote controller.

2. Automatic fan speed ............. Fixed.

Revolution (rpm)

480

Normal Fan Speed (AUTO)

•

When used in common with other modes, it will be followed by other modes.

Order of priority: Cooling, Dry and Heating > Ion > Oxygen Enrich

Powerful and Quiet operations are not accepted at the Oxygen Enrich Operation mode.

9.13.3. Indoor Airflow Direction Control

1. Manual and Automatic Airflow Direction ................. Same as Cooling operation.

•

When used in common with other modes, it will be followed by other modes.

Order of priority: Cooling, Dry and Heating > Ion > Oxygen Enrich

9.13.4. Conditions of starting and cancellation

1. ON/OFF by the "Oxygen & Ventilation Selection" Switch on the remote controller

•

When "Oxygen" is selected with the Switch under a condition of Ionizing Air Clearing OFF

→

Single Oxygen Enrich Operation

When "Oxygen" is selected with the Switch under a condition of Ionizing Air Clearing ON,

→

Ionizing Air Cleaning + Simultaneous Oxygen Enrich Operation

When "Oxygen" is selected with the Switch during Single Oxygen Enrich Operation,

→

Operation is stopped.

When "Oxygen" is selected with the Switch during Cooling, Heating, Dry or Ionizing Air Cleaning Operation,

→

Cooling, Heating, Dry or Ionizing Air Cleaning Operation + Simultaneous Oxygen Enrich Operation,

When "Oxygen" is selected with the Switch during Cooling, Heating, Dry or Ionizing Air Cleaning Operation + Simultaneous

Oxygen Enrich Operation,

CS-HE9DKE CU-HE9DKE / CS-HE12DKE CU-HE12DKE

→

Cooling, Heating, Dry or Ionizing Air Cleaning Operation

•

When "Oxygen" is selected with the Switch during Ionizing Air Cleaning Operation + Simultaneous Oxygen Enrich

Operation,

→

Ionizing Air Cleaning Operation

2. Common use with ON/OFF Timer

•

When ON-Time of the Timer setting is up during operation stop,

→

In last time operation, if unit is stopped in Single Oxygen Enrich Operation, it operates in Single Oxygen Enrich mode.

In last time operation, if unit is stopped in operations other than Single Oxygen Enrich, it operates at its operation mode.

•

When ON-Time of the Timer setting is up during Oxygen Enrich Operation,

→

Unit remains the operation.

When OFF-Time of the Timer setting is up during Oxygen Enrich Operation,

→

Unit stops operating.

Preliminary Operation of Single Oxygen Enrich Operation

→

Not applicable.

9.13.5. Oxygen Monitor Display

Monitor level

Status

Stop

—

Stop (Vacuum pump

operation)

In operation

LED Display

Oxygen requirement level

OFF

Blinking

—

• Monitor level when installation (Oxygen) is checked is "3".

9.13.6. Oxygen Enrich Control

•

Vacuum pump is operated after Oxygen requirement level that is decided in outdoor unit from Oxygen supply level decided in

indoor unit and protective control devices such as a vacuum pump.

Oxygen Requirement

Level

Oxygen Supply Level

Vacuum pump operation time

OFF-time (min.) ON-time (min.)

—

•

Operating cycle period of Vacuum pump: 10 minutes; Oxygen supply level is renewed in a cycle.

CS-HE9DKE CU-HE9DKE / CS-HE12DKE CU-HE12DKE

9.13.7. Installation (Oxygen) Check Control

•

For operation check at installation and breakdown self-

diagnosis, continuous operation of 2-way valve and vacuum

pump is conducted by checking installation from indoor

room.

9.14. Deice Control <Heating>

•

Degree of frosting is expected by operation time, heat

exchanger temperature and outdoor air temperature.

•

According to frosting conditions, deicing operation is

effectively performed.

1. Timer for deice control will function when outdoor heat

exchanger temperature after continuous 40 minutes heating

operation is below the primary judgment temperature.

When the timer reaches 20 minutes or heat exchanger

temperature is below the secondary judgment temperature,

deicing operation will start.

2. Four-way valve is switched and deicing is performed by

cooling cycle.

3. Deicing will be stopped when 12 minutes elapsed from

starting of the operation or heat exchanger temperature

reaches 17°C or more.

CS-HE9DKE CU-HE9DKE / CS-HE12DKE CU-HE12DKE

9.15. Protection Control

9.15.1. Time Delay Safety Control

•

Compressor will not start for two minutes after stop of the operation.

9.15.2. 30 Seconds Forced Operation

•

Once compressor starts the operation, it will not stop its operation for 30 seconds. However, it can be stopped with the remote

controller or the Auto button on the indoor unit.

9.15.3. Total Running Current Control

1. When the total running current exceeds I1, compressor operation frequency is reduced. If it reaches below I1, the operation

frequency is increased. (But, up to programmed frequency.)

2. If total running current exceeds I2, compressor is stopped immediately.

3. If it happens three (3) times within 20 minutes, operation will be stopped and Timer LED blinks. (“F98” is activating.)

Running current

CS-HE9DKE

4.5A

CS-HE12DKE

5.8A

Cooling

Heating

12.5A

7.2A

12.5A

9.6A

12.5A

9.15.4. IPM (Power transistor) Protection Control (DC Peak detection)

Abnormal Current Control

•

If inverter load current (DC peak) exceeds a rated value, compressor will be stopped immediately. When the excess

occurs within 30 seconds after operation, it restarts in 1 minute and when after 30 seconds, restarts in 2 minutes.

•

If the excess continuously occurs 7 times within 30 minutes after compressor starts, the unit will be stopped and timer

lamp on the indoor unit will be blinking. (“F99” is to be confirmed.)

IPM Overheating Prevention Control

•

If temperature of IPM exceeds 103°C, compressor will be stopped. It will restart in 2 minutes. Temperature for restarting:

90°C.

•

If the excess occurs 4 times within 30 minutes after compressor starts, the compressor will be stopped and timer lamp

on the indoor unit will be blinking. (“F96” is to be confirmed.)

9.15.5. Compressor Overheating Prevention Control

1. If discharge pipe temperature exceeds 100°C, compressor power will be limited.

2. If discharge pipe temperature exceeds 112°C, compressor will be stopped.

3. If the above excess occurs 4 times per 10 minutes, timer lamp will be blinking. (“F97” is to be confirmed.)

9.15.6. Outdoor High Pressure Prevention Control (Cooling and Dry operations)

1. If outdoor heat exchanger temperature exceeds 63°C in cooling or dry operation, compressor will be stopped.

2. Timer lamp is not blinking. (“F95” is memorized, then.)

9.15.7. Compressor Protection Control (Refrigeration Cycle Abnormality)

In Cooling and Dry operations

1. When compressor is operated continuously for 5 minutes in the maximum cooling power: a running current of 0.6 - 1.2A

(excl.) and “[Indoor intake air temperature] - [Indoor heat exchanger temperature]” < 4°C, compressor will be stopped.

2. If the above excess occurs twice for 20 minutes, timer lamp is to be blinking. (“F91” is to be confirmed.)

In Heating operation

1. When compressor is operated continuously for 5 minutes in the rated heating power: a running current of 0.6 - 1.2A (excl.)

and “[Indoor heat exchanger temperature] - [Indoor intake air temperature]” < 5°C, compressor will be stopped.

2. If the above excess occurs twice for 20 minutes, timer lamp is to be blinking. (“F91” is to be confirmed.)

CS-HE9DKE CU-HE9DKE / CS-HE12DKE CU-HE12DKE

9.15.8. Four-way valve Operation Detection Control (Switching Abnormality between

Cooling and Heating)

In Cooling operation

1. When indoor heat exchanger temperature exceeds 45°C in 4 minutes after compressor starts, compressor will be stopped.

2. If the above excess occurs 4 times per 30 minutes, timer lamp is to be blinking. (“F11” is to be confirmed.)

In Heating operation

1. When indoor heat exchanger temperature is below 0°C in 4 minutes after compressor starts, compressor will be stopped.

2. If the above excess occurs 4 times per 30 minutes, timer lamp is to be blinking. (“F11” is to be confirmed.)

9.15.9. Anti-Freezing Control (Cooling and Dry operations)

Limit of Cooling power

1. When temperature of indoor heat exchanger is below 5°C, operating frequency will be decreased.

2. When temperature of indoor heat exchanger exceeds 7°C, operating frequency will be increased. (But, up to programmed

frequency.)

3. When temperature of indoor heat exchanger is below 0°C continuously for 6 minutes, compressor will be stopped.

4. Timer lamp is not blinking. (“F99” is memorized, then.)

Limit of Indoor fan speed

•

When temperature of indoor heat exchanger is below 6°C (2°C at Dry) continuously for 6 minutes, indoor fan speed will be

increased by 50 rpm.

9.15.10. Outdoor Air Temperature Control

In Cooling and Dry operations

1. When outdoor air temperature is below 25°C, the maximum power will be limited up to about 80-100% of the rated power.

2. When outdoor air temperature is below 18°C, the maximum power will be limited up to about 50-100% of the rated power.

3. When outdoor air temperature is below 11°C, the maximum power will be limited up to about 26-81% of the rated power.

9.15.11. Indoor Intake Air Temperature Control (Heating operation)

1. When indoor air temperature is 35°C or more, the maximum power will be limited up to the rated power.

2. When fan speed is set at "Lo" and intake air temperature is below 21°C, the maximum power will be limited up to the rated

power.

CS-HE9DKE CU-HE9DKE / CS-HE12DKE CU-HE12DKE

10 Operating Instructions

CS-HE9DKE CU-HE9DKE / CS-HE12DKE CU-HE12DKE

11 Installation Instructions

Required tools for Installation Works

1. Philips screw driver

2. Level gauge

5. Spanner

6. Pipe cutter

9. Gas leak detector

10. Measuring tape

13. Multimeter

14. Torque wrench

18 N.m (1.8 kgf.m)

42 N.m (4.2 kgf.m)

55 N.m (5.5 kgf.m)

3. Electric drill, hole core drill 7. Reamer

(ø70 mm)

4. Hexagonal wrench (4 mm) 8. Knife

11. Thermometer

12. Megameter

15. Vacuum pump

16. Gauge manifold

11.1. Safety Precautions

•

Read the following “SAFETY PRECAUTIONS” carefully before installation.

Electrical work must be installed by a licensed electrician. Be sure to use the correct rating of the power plug and main circuit

for the model to be installed.

•

The caution items stated here must be followed because these important contents are related to safety. The meaning of each

indication used is as below. Incorrect installation due to ignoring of the instruction will cause harm or damage, and the

seriousness is classified by the following indications.

This indication shows the possibility of causing death or serious injury.

This indication shows the possibility of causing injury or damage to properties only.

The items to be followed are classified by the symbols:

Symbol with background white denotes item that is PROHIBITED from doing.

•

Carry out test running to confirm that no abnormality occurs after the installation. Then, explain to user the operation, care and

maintenance as stated in instructions. Please remind the customer to keep the operating instructions for future reference.

1. Engage dealer or specialist for installation. If installation done by the user is defective, it will cause water leakage, electrical shock or fire.

2. Install according to this installation instruction strictly. If installation is defective, it will cause water leakage, electrical shock or fire.

3. Use the attached accessories parts and specified parts for installation. Otherwise, it will cause the set to fall, water leakage, fire or

electrical shock.

4. Install at a strong and firm location which is able to withstand the set’s weight. If the strength is not enough or installation is not properly

done, the set will drop and cause injury.

5. For electrical work, follow the local national wiring standard, regulation and this installation instruction. An independent circuit and single

outlet must be used. If electrical circuit capacity is not enough or defect found in electrical work, it will cause electrical shock or fire.

6. Use the specified cable (1.5 mm²) and connect tightly for indoor/outdoor connection. Connect tightly and clamp the cable so that no

external force will be acted on the terminal. If connection or fixing is not perfect, it will cause heat-up or fire at the connection.

7. Wire routing must be properly arranged so that control board cover is fixed properly. If control board cover is not fixed perfectly, it will

cause heat-up at connection point of terminal, fire or electrical shock.

8. When carrying out piping connection, take care not to let air substances other than the specified refrigerant go into

refrigeration cycle. Otherwise, it will cause lower capacity, abnormal high pressure in the refrigeration cycle, explosion

and injury.

9. When connecting the piping, do not allow air or any substances other than the specified refrigerant (R410A) to enter the

refrigeration cycle. Otherwise, this may lower the capacity, cause abnormally high pressure in the refrigeration cycle, and

possibly result in explosion and injury.

10. • When connecting the piping, do not use any existing (R22) pipes and flare nuts. Using such same may cause

abnormally high pressure in the refrigeration cycle (piping), and possible result in explosion and injury. Use only

R410A materials.

• Thickness of copper pipes used with R410A must be more than 0.8 mm. Never use copper pipes thinner than

0.8mm.

• It is desirable that the amount of residual oil is less than 40 mg/10 m.

11. Do not modify the length of the power supply cord or use of the extension cord, and do not share the single outlet with

other electrical appliances. Otherwise, it will cause fire or electrical shock.

CS-HE9DKE CU-HE9DKE / CS-HE12DKE CU-HE12DKE

1. The equipment must be earthed and install with earth breaker. It may cause electrical shock if grounding is not perfect.

2. Do not install the unit at place where leakage of flammable gas may occur.

In case gas leaks and accumulates at surrounding of the unit, it may cause fire.

3. Carry out drainage piping as mentioned in installation instructions. If drainage is not perfect, water may enter the room and damage the

furniture.

1. Selection of the installation location.

Select an installation location which is rigid and strong enough to support or hold the unit, and select a location for easy maintenance.

2. Power supply connection to the room air conditioner.

Connect the power supply cord of the room air conditioner to the mains using one of the following method.

Power supply point shall be the place where there is ease for access for the power disconnection in case of emergency.

In some countries, permanent connection of this room air conditioner to the power supply is prohibited.

1. Power supply connection to the receptacle using a power plug.

Use an approved 15A/16A power plug with earth pin for the connection to the socket.

2. Power supply connection to a circuit breaker for the permanent connection. Use an approved 16A circuit breaker for the permanent

connection. It must be a double pole switch with a minimum 3.5 mm contact gap.

3. Do not release refrigerant.

Do not release refrigerant during piping work for installation, reinstallation and during repairing a refrigeration parts.

Take care of the liquid refrigerant, it may cause frostbite.

4. Installation work.

It may need two people to carry out the installation work.

5. Do not install this appliance in a laundry room or other location where water may drip from the ceiling, etc.

CS-HE9DKE CU-HE9DKE / CS-HE12DKE CU-HE12DKE

Attached accessories

Indoor/Outdoor Unit Installation Diagram

Applicable piping kit

CZ-3F5, 7BP (HE9DKE)

CZ-4F5, 7, 10BP (HE12DKE)

SELECT THE BEST LOCATION

INDOOR UNIT

•

There should not be any heat source or steam near the

unit.

•

There should not be any obstacles blocking the air

circulation.

•

A place where air circulation in the room is good.

A place where drainage can be easily done.

place where noise prevention is taken into

consideration.

•

Do not install the unit near the door way.

Ensure the spaces indicated by arrows from the wall,

ceiling, fence or other obstacles.

•

Recommended installation height for indoor unit shall be

at least 2.5 m.

OUTDOOR UNIT

•

If an awning is built over the unit to prevent direct

sunlight or rain, be careful that heat radiation from the

condenser is not obstructed.

•

There should not be any animal or plant which could be

affected by hot air discharged.

•

This illustration is for explanation purposes only.

The indoor unit will actually face a different way.

Keep the spaces indicated by arrows from wall, ceiling,

fence or other obstacles.

Do not place any obstacles which may cause a short

circuit of the discharged air.

If piping length is over the common length, additional

refrigerant should be added as shown in the table.

CS-HE9DKE CU-HE9DKE / CS-HE12DKE CU-HE12DKE

11.2. Indoor Unit

11.2.1. Select The Best Location

11.2.3. To Drill A Hole In The Wall And

Install A Sleeve Of Piping

(Refer to “Select the best location”

section)

1. Insert the piping sleeve to the hole.

2. Fix the bushing to the sleeve.

11.2.2. How To Fix Installation Plate

3. Cut the sleeve until it extrudes about 15 mm from the wall.

The mounting wall is strong and solid enough to prevent it from

the vibration.

Caution

When the wall is hollow, please be sure to use the

sleeve for tube ass’y to prevent dangers caused by

mice biting the connecting cable.

4. Finish by sealing the sleeve with putty or caulking

compound at the final stage.

: For left side piping, piping connection for liquid should be

this line.

: For left side piping, piping connection for gas should be

about 60 mm from this line.

: For left side piping, piping connecting cable should be

about 750 mm from this line.

1. Mount the installation plate on the wall with 5 screws or

more.

(If mounting the unit on the concrete wall, consider using

anchor bolts.)

•

Always mount the installation plate horizontally by

aligning the marking-off line with the thread and using a

level gauge.

2. Drill the piping plate hole with ø70 mm hole-core drill.

•

The center of the right piping hole is at the intersection

of lines extending vertically from the edge of the

installation plate and horizontally from the sideways

arrow on the installation plate (see figure above.).

The center of the left piping hole is at the intersection of

lines extending vertically from the downward arrow on

the installation plate and horizontally from the sideways

arrow on the installation plate (see figure above.).

Drill the piping hole at either the right or the left and the

hole should be slightly slanted to the outdoor side.

CS-HE9DKE CU-HE9DKE / CS-HE12DKE CU-HE12DKE

Pull out the piping and drain hose

11.2.4. Indoor Unit Installation

1. For the right rear piping

How to keep the cover

2. For the right and right bottom piping

Insert the connecting cable

3. For the embedded piping

Install the Indoor Unit

Secure the Indoor Unit

CS-HE9DKE CU-HE9DKE / CS-HE12DKE CU-HE12DKE

(This can be used for left rear piping & left bottom piping also.)

Exchange the drain hose and the cap.

CS-HE9DKE CU-HE9DKE / CS-HE12DKE CU-HE12DKE

11.2.5. Connect The Cable To The Indoor

Unit

1. The inside and outside connecting cable can be connected

without removing the front grille.

2. Connecting cable between indoor unit and outdoor unit

shall be approved polychloroprene sheathed 4 × 1.5 mm²

flexible cord, type designation 245 IEC 57 (H05RN-F) or

heavier cord.

•

Ensure the color of wires of outdoor unit and the

terminal Nos. are the same to the indoor’s respectively.

•

Earth lead wire shall be longer than the other lead wires

as shown in the figure for the electrical safety in case of

the slipping out of the cord from the anchorage.

AUTO SWITCH OPERATION

The below operations will be performed by pressing the

“AUTO” switch.

•

AUTO OPERATION MODE

The Auto operation will be activated immediately once the

Auto Switch is pressed.

•

Secure the cable onto the control board with the holder

(clamper).

•

TEST RUN OPERATION (for PUMP DOWN/SERVICING

PURPOSE)

The Test Run operation will be activated if the Auto Switch

is pressed continuously for more than 5 sec. to below 8 sec.

A “pep” sound will occur at the fifth sec., in order to identify

the starting of Test Run operation.

HOW TO TAKE OUT CORNER PIECE (LEFT UNDER)

HOW TO TAKE OUT FRONT GRILLE

Please follow the steps below to take out front grille if

necessary such as when servicing.

1. Set the vertical airflow direction louver to the horizontal

position.

2. Slide down the two caps on the front grille as shown in the

illustration at the right, and then remove the three mounting

screws.

3. Pull the lower section of the front grille towards you to

remove the front grille.

Caution

When reinstalling the front grille, first set the vertical

airflow direction louver to the horizontal position and

then carry out above steps 2 - 3 in the reverse order.

Please check that the top side of front grille certainly

caught with fixative rib (4 points) of indoor unit.

CS-HE9DKE CU-HE9DKE / CS-HE12DKE CU-HE12DKE

11.3. Outdoor Unit

11.3.1. Select The Best Location

(Refer to “Select the best location”

section)

11.3.2. Install The Outdoor Unit

•

After selecting the best location, start installation according

to Indoor/Outdoor Unit Installation Diagram.

Connecting The Piping To Outdoor Unit

1. Fix the unit on concrete or rigid frame firmly and horizontally

by bolt nut. (ø10 mm).

Decide piping length and then cut by using pipe cutter. Remove

burrs from cut edge. Make flare after inserting the flare nut

(located at valve) onto the copper pipe.

2. When installing at roof, please consider strong wind and

earthquake. Please fasten the installation stand firmly with

bolt or nails.

Align center of piping to valves and then tighten with torque

wrench to the specified torque as stated in the table.

Cutting And Flaring The Piping

1. Please cut using pipe cutter and then remove the burrs.

2. Remove the burrs by using reamer. If burrs is not

removed, gas leakage may be caused.

Turn the piping end down to avoid the metal powder

entering the pipe.

11.3.3. Connecting The Piping

3. Please make flare after inserting the flare nut onto the

copper pipes.

Connecting The Piping To Indoor Unit

Please make flare after inserting flare nut (locate at joint portion

of tube assembly) onto the copper pipe. (In case of using long

piping)

Connect the piping

•

Align the center of piping and sufficiently tighten the flare

nut with fingers.

•

Further tighten the flare nut with torque wrench in specified

torque as stated in the table.

11.3.4. Evacuation Of The Equipment (For Europe & Oceania Destination)

WHEN INSTALLING AN AIR CONDITIONER, BE SURE TO EVACUTE THE AIR INSIDE THE INDOOR UNIT AND PIPES in the

following procedure.

CS-HE9DKE CU-HE9DKE / CS-HE12DKE CU-HE12DKE

1. Connect a charging hose with a push pin to the Low and High side of a charging set and the service port of the 3-way valve.

•

Be sure to connect the end of the charging hose with the push pin to the service port.

2. Connect the center hose of the charging set to a vacuum pump with check valve, or vacuum pump and vacuum pump adaptor.

3. Turn on the power switch of the vacuum pump and make sure that the needle in the gauge moves form 0 cmHg (0 MPa) to -

76cm Hg (-0.1 MPa). Then evacuate the air approximately 15 minutes.

4. Close the Low side valve of the charging set the turn off the vacuum pump. Make sure that the needle in the gauge does not

move after approximately 5 minutes.

Note: BE SURE TO FOLLOW THIS PROCEDURE INORDER TO AVOID REFRIGERANT GAS LEAKAGE.

5. Disconnect the charging hose from vacuum pump and from the service port of the 3-way valve.

6. Tighten the service port caps of the 3-way valve at a torque of 18 N.m with a torque wrench.

7. Remove the valve caps of both of the 3-way valve. Position both of the valves to “OPEN” using a hexagonal wrench (4 mm).

8. Mount valve caps onto the 2-way valve and the 3-way valve.

•

Be sure to check for gas leakage.

Caution

• If gauge needle does not move from 0 cmHg (0 MPa) to -76 cmHg (-0.1 MPa), in step 3 above take the following measure:

• If the leak stops when the piping connections are tightened further, continue working form step 3.

• If the leak does not stop when the connections are retightened, repair the location of leak.

• Do not release refrigerant during piping work for installation and reinstallation. Take care of the liquid refrigerant, it may cause

frostbite.

11.3.5. Connect The Cable To The

Outdoor Unit

11.3.6. Pipe Insulation

1. Please carry out insulation at pipe connection portion as

mentioned in Indoor/Outdoor Unit Installation Diagram.

Please wrap the insulated piping end to prevent water from

going inside the piping.

1. Remove the control board cover from the unit by loosening

the screw.

2. Connecting cable between indoor unit and outdoor unit

shall be approved polychloroprene sheathed 4 × 1.5 mm²

flexible cord, type designation 245 IEC 57 (H05RN-F) or

heavier cord.

2. If drain hose or connecting piping is in the room (where dew

may form), please increase the insulation by using POLY-E

FOAM with thickness 6 mm or above.

FOR 2 SETS IN ONE ROOM

A switching mechanism to prevent errors occurring in the

operation of one of the air conditioners caused by operating the

buttons on the remote controller for the other air conditioner is

provided. This mechanism was set to “A” at the factory.

3. Secure the cable onto the control board with the holder

(clamper).

Set the other air conditioner and its remote controller to “B”.

4. Attach the control board cover back to the original position

with the screw.

•

Set the remote controller to “B”.

Open the remote controller’s battery cover, and cut the

jumper using a pair of pliers.

•

Set the air conditioner to “B”.

1. Hold down the air conditioner’s emergency operation

button for at least 11 seconds, and release it after three

beeps are heard.

(Note: One beep is heard after the button has been held

down for 5 seconds, and two beeps are heard after 8

seconds.)

CS-HE9DKE CU-HE9DKE / CS-HE12DKE CU-HE12DKE

2. Within the next 5 minutes, point the remote controller at

the air conditioner, and press the ERROR RESET

button on the remote controller. (A beep is heard,

indicating that this signal was received.)

EVALUATION OF THE PERFORMANCE

•

Operate the unit at cooling operation mode for 15 minutes

or more.

•

Measure the temperature of the intake and discharge air.

3. When any button on the remote controller which has

been set to “B” is pressed within the next 5 minutes, the

air conditioner will also be set to “B”. (Another beep is

heard, indicating that this signal was received.)

Ensure the difference between the intake temperature and

the discharge is more than 8°C.

4. Check that the air conditioner which has been set to “B”

can be operated by the remote controller which has

been set to “B”.

CHECK ITEMS

Is there any gas leakage at flare nut connection?

Has the heat insulation been carried out at flare nut

connection?

Is the connecting cable being fixed to terminal board firmly?

Is the connecting cable being clamped firmly?

DISPOSAL OF OUTDOOR UNIT DRAIN WATER

•

If a drain elbow is used, the unit should be placed on a

stand which is taller than 3 cm.

Is the drainage OK?

(Refer to “Check the drainage” section)

If the unit is used in an area where temperature falls below

0°C for 2 or 3 days in succession, it is recommended not to

use a drain elbow, for the drain water freezes and the fan

will not rotate.

Is the earth wire connection properly done?

Is the indoor unit properly hooked to the installation plate?

Is the power supply voltage complied with rated value?

Is there any abnormal sound?

Is the cooling operation normal?

Is the thermostat operation normal?

Is the remote control’s LCD operation normal?

Is the air purifying filter installed?

CHECK THE DRAINAGE

•

Open front panel and remove air filters.

(Drainage checking can be carried out without removing the

front grille.)

•

Pour a glass of water into the drain tray-styrofoam.

Ensure that water flows out from drain hose of the indoor

unit.

CS-HE9DKE CU-HE9DKE / CS-HE12DKE CU-HE12DKE

12 Installation and Servicing Air Conditioner Using R410A

12.1. Outline

12.1.1. About R410A Refrigerant

1. Converting air conditioners to R410A

Since it was declared in1974 that chlorofluorocarbons (CFC), hydro chlorofluorocarbons (HCFC) and other substances pose a

destructive danger to the ozone layer in the earth’s upper stratosphere (20 to 40 km above the earth), measures have been

taken around the world to prevent this destruction.

The R22 refrigerant which has conventionally been used in ACs is an HCFC refrigerant and, therefore, possesses this ozone-

destroying potential. International regulations (the Montreal Protocol on Ozone-Damaging Substances) and the domestic laws

of various countries call for the early substitution of R22 by a refrigerant which will not harm the ozone layer.

•

In ACs, the HFC refrigerant which has become the mainstream alternative is called R410A. Compared with R22, the

pressure of R410A is approximately 1.6 times as high at the same refrigerant temperature, but the energy efficiency is about

the same. Consisting of hydrogen (H), fluorine (F) and carbon (C), R410A is an HFC refrigerant. Another typical HFC

refrigerant is R407C. While the energy efficiency of R407C is somewhat inferior to that of R410A, it offers the advantage

of having pressure characteristics which are about the same as those of R22, and is used mainly in packaged ACs.

2. The characteristics of HFC (R410A) refrigerants

a. Chemical characteristics

The chemical characteristics of R410A are similar to those of R22 in that both are chemically stable, non-flammable

refrigerants with low toxicity.

However, just like R22, the specific gravity of R410A gas is heavier than that of air. Because of this, it can cause an oxygen

deficiency if it leaks into a closed room since it collects in the lower area of the room. It also generates toxic gas when it is

directly exposed to a flame, so it must be used in a well ventilated environment where it will not collect.

Table 1 Physical comparison of R410A and R22

R410A

R32/R125 (50/50)

-51.4

R22

R22 (100)

-40.8

Composition (wt%)

Boiling point (°C)

Vaporizing pressure (25°C)

Saturated vapor density

Flammability

Ozone-destroying point (ODP)

Global-warming point (GWP)

1.56 Mpa (15.9 kgf/cm²)

64.0 kg/m³

Non-flammable

0.94 Mpa (9.6 kgf/cm²)

44.4 kg/m³

Non-flammable

0.055

1730

1700

b. Compositional change (pseudo-azeotropic characteristics)

R410A is a pseudo-azeotropic mixture comprising the two components R32 and R125. Multi-component refrigerants with

these chemical characteristics exhibit little compositional change even from phase changes due to vaporization (or

condensation), which means that there is little change in the circulating refrigerant composition even when the refrigerant

leaks from the gaseous section of the piping.

Accordingly, R410A can be handled in almost the same manner as the single-component refrigerant R22. However, when

charging, because there is a slight change in composition between the gas phase and the liquid phase inside a cylinder or

other container, charging should basically begin with the liquid side.

c. Pressure characteristics

As seen in Table 2, the gas pressure of R410A is approximately 1.6 times as high as that of R22 at the same refrigerant

temperature, which means that special R410A tools and materials with high-pressure specifications must be used for all

refrigerant piping work and servicing.

Table 2 Comparison of R410A and R22 saturated vapor density

Unit: MPa

Refrigerant Temperature (°C)

R410A

0.30

0.70

1.35

2.32

3.73

4.15

R22

0.14

0.40

0.81

1.43

2.33

2.60

-20

CS-HE9DKE CU-HE9DKE / CS-HE12DKE CU-HE12DKE

d. R410A refrigerating machine oil

Conventionally, mineral oil or a synthetic oil such as alkylbenzene has been used for R22 refrigerating machine oil. Because

of the poor compatibility between R410A and conventional oils like mineral oil, however, there is a tendency for the

refrigerating machine oil to collect in the refrigerating cycle. For this reason, polyester and other synthetic oils which have

a high compatibility with R410A are used as refrigerating machine oil.

Because of the high hygroscopic property of synthetic oil, more care must be taken in its handling than was necessary with

conventional refrigerating machine oils. Also, these synthetic oils will degrade if mixed with mineral oil or alkylbenzene,

causing clogging in capillary tubes or compressor malfunction. Do not mix them under any circumstances.

12.1.2. Safety Measures When Installing/Servicing Refrigerant Piping

Cause the gas pressure of R410A is approximately 1.6 times as high as that of R22, a mistake in installation or servicing could

result in a major accident. It is essential that you use R410A tools and materials, and that you observe the following precautions

to ensure safety.

1. Do not use any refrigerant other than R410A in ACs that have been used with R410A.

2. If any refrigerant gas leaks while you are working, ventilate the room. Toxic gas may be generated if refrigerant gas is exposed

to a direct flame.

3. When installing or transferring an AC, do not allow any air or substance other than R410A to mix into the refrigeration cycle. If

it does, the pressure in the refrigeration cycle can become abnormally high, possibly causing an explosion and/or injury.

4. After finishing the installation, check to make sure there is no refrigerant gas leaking.

5. When installing or transferring an AC, follow the instructions in the installation instructions carefully. Incorrect installation can

result in an abnormal refrigeration cycle or water leakage, electric shock, fire, etc.

6. Do not perform any alterations on the AC unit under any circumstances. Have all repair work done by a specialist. Incorrect

repairs can result in a water leakage, electric shock, fire, etc.

12.2. Tools For Installing/Servicing Refrigerant Piping

12.2.1. Necessary Tools

In order to prevent an R410A AC from mistakenly being charged with any other refrigerant, the diameter of the 3-way valve service

port on the outdoor unit has been changed. Also, to increase its ability to withstand pressure, the opposing dimensions have been

changed for the refrigerant pipe flaring size and flare nut. Accordingly, when installing or servicing refrigerant piping, you must have

both the R410A and ordinary tools listed below.

Table 3 Tools for installation, transferring or replacement

Type of work

Ordinary tools

R410A tools

Flaring

Flaring tool (clutch type), pipe cutter,

reamer

Copper pipe gauge for clearance

Adjustment, flaring tool (clutch type)*1)

Bending, connecting pipes

Torque wrench (nominal diameter 1/4,

3/8,1/2). Fixed spanner (opposing sides

12 mm, 17 mm, 19 mm). Adjustable

wrench, Spring bender

Air purging

Vacuum pump. Hexagonal wrench

(opposing sides 4 mm)

Manifold gauge, charging hose, vacuum

pump adaptor

Gas leak inspection

Gas leak inspection fluid or soapy water

Electric gas leak detector for HFC

refrigerant*2)

*1) You can use the conventional (R22) flaring tool. If you need to buy a new tool, buy the R410A type.

*2) Use when it is necessary to detect small gas leaks.

For other installation work, you should have the usual tools, such as screwdrivers (+,-), a metal-cutting saw, an electrical drill, a hole

core drill (65 or 70 dia.), a tape measure, a level, a thermometer, a clamp meter, an insulation tester, a voltmeter, etc.

Table 4 Tools for serving

Type of work

Refrigerant charging

Ordinary tools

R410A tools

Electronic scale for refrigerant charging.

Refrigerant cylinder. Charging orifice and

packing for refrigerant cylinder

Brazing (Replacing refrigerating cycle Nitrogen blow set (be sure to use nitrogen

part*1)

blowing for all brazing), and brazing

machine

*1) Always replace the dryer of the outdoor unit at the same time. The replacement dryer is wrapped in a vacuum pack. Replace

it last among the refrigerating cycle parts. Start brazing as soon as you have opened the vacuum pack, and begin the vacuuming

operation within 2 hours.

CS-HE9DKE CU-HE9DKE / CS-HE12DKE CU-HE12DKE

12.2.2. R410A Tools

1. Copper tube gauge for clearance adjustment

(used when flaring with the conventional flaring tool (clutch

type))

•

This gauge makes it easy to set the clearance for the

copper tube to 1.0-1.5 mm from the clamp bar of the

flaring tool.

Fig. 1 Copper tube gauge for clearance adjustment

2. Flaring tool (clutch type)

•

In the R410A flaring tool, the receiving hole for the

clamp bar is enlarged so the clearance from the clamp

bar can be set to 0-0.5 mm, and the spring inside the

tool is strengthened to increase the strength of the pipe-

expanding torque. This flaring tools can also be used

with R22 piping, so we recommend that you select it if

you are buying a new flaring tool.

Fig. 2 Flaring tool (clutch type)

3. Torque wrenches

Fig. 3 Torque wrenches

Table 5

Conventional wrenches

R410A wrenches

For 1/4 (opposite side x torque)

For 3/8 (opposite side x torque)

For 1/2 (opposite side x torque)

17 mm x 18 N.m (180 kgf.cm)

22 mm x 42 N.m (420 kgf.cm)

24 mm x 55 N.m (550 kgf.cm)

17 mm x 18 N.m (180 kgf.cm)

22 mm x 42 N.m (420 kgf.cm)

26 mm x 55 N.m (550 kgf.cm)

4. Manifold gauge

•

Because the pressure is higher for the R410A type, the conventional type cannot be used.

Table 6 Difference between R410A and conventional high/low-pressure gauges

Conventional gauges

-76 cmHg - 35 kgf/cm³

-76 cmHg - 17 kgf/cm³

R410A gauges

High-pressure gauge (red)

Low-pressure gauge (blue)

-0.1 - 5.3 Mpa -76 cmHg - 53 kgf/cm³

-0.1 - 3.8 Mpa -76 cmHg - 38 kgf/cm³

•

The shape of the manifold ports has been changed to prevent the possibility of mistakenly charging with another type of

refrigerant.

Table 7 Difference between R410A and conventional manifold port size

Conventional gauges

R410A gauges

Port size

7/16 UNF 20 threads

1/2 UNF 20 threads

CS-HE9DKE CU-HE9DKE / CS-HE12DKE CU-HE12DKE

5. Charging hose

•

The pressure resistance of the charging hose has been

raised to match the higher pressure of R410A. The hose

material has also been changed to suit HFC use, and

the size of the fitting has been changed to match the

manifold ports.

Fig. 4 Manifold gauge charging hose

Table 8 Difference between R410A and conventional charging hoses

Conventional hoses

3.4 MPa (35 kgf/cm³)

17.2 MPa (175 kgf/cm³)

NBR rubber

R410A hoses

Pressure

resistance

Working pressure

Bursting pressure

5.1 MPa (52 kgf/cm³)

27.4 MPa (280 kgf/cm³)

HNBR rubber Nylon coating inside

Material

6. Vacuum pump adaptor

•

When using a vacuum pump for R410A, it is necessary

to install an electromagnetic valve to prevent the

vacuum pump oil from flowing back into the charging

hose. The vacuum pump adaptor is installed for that

purpose. If the vacuum pump oil (mineral oil) becomes

mixed with R410A, it will damage the unit.

Fig. 5 Vacuum pump adaptor

7. Electric gas leak detector for HFC refrigerant

•

The leak detector and halide torch that were used with

CFC and HCFC cannot be used with R410A (because

there is no chlorine in the refrigerant).

The present R134a leak detector can be used, but the

detection sensitivity will be lower (setting the sensitivity

for R134a at 1, the level for R410A will drop to 0.6).

For detecting small amounts of gas leakage, use the

electric gas leak detector for HFC refrigerant. (Detection

sensitivity with R410A is about 23 g/year).

Fig. 6 Electric gas leak detector for HFC refrigerant

CS-HE9DKE CU-HE9DKE / CS-HE12DKE CU-HE12DKE

8. Electronic scale for refrigerant charging

•

Because of the high pressure and fast vaporizing speed

of R410A, the refrigerant cannot be held in a liquid

phase inside the charging cylinder when charging is

done using the charging cylinder method, causing

bubbles to form in the measurement scale glass and

making it difficult to see the reading. (Naturally, the

conventional R22 charging cylinder cannot be used

because of the differences in the pressure resistance,

scale gradation, connecting port size, etc.)

•

The electronic scale has been strengthened by using a

structure in which the weight detector for the refrigerant

cylinder is held by four supports. It is also equipped with

two connection ports, one for R22 (7/16 UNF, 20

threads) and one for R410A (1/2 UNF, 20 threads), so

it can also be used for conventional refrigerant charging.

Fig. 7 Electronic scale for refrigerant charging

There are two types of electronic scales, one for 10-kg

cylinders and one for 20-kg cylinders. (The 10-kg

cylinder is recommended.)

Refrigerant charging is done manually by opening and

closing the valve.

9. Refrigerant cylinders

•

The R410A cylinders are labeled with the refrigerant

name, and the coating color of the cylinder protector is

pink, which is the color stipulated by ARI of the U.S.

•

Cylinders equipped with a siphon tube are available to

allow the cylinder to stand upright for liquid refrigerant

charging.

Fig. 8 Refrigerant cylinders

10. Charging orifice and packing for refrigerant cylinders

•

The charging orifice must match the size of the charging

hose fitting (1/2 UNF, 20 threads).

•

The packing must also be made of an HFC-resistant

material.

Fig. 9 Charging orifice and packing

12.2.3. R410A Tools Which Are Usable for R22 Models

Table 9 R410A tools which are usable for R22 models

R410A tools

Usable for R22 models

(1)

(2)

(3)

(4)

(5)

(6)

(7)

(8)

(9)

Copper tube gauge for clearance adjustment

Flaring tool (clutch type)

Manifold gauge

Charging hose

Vacuum pump adaptor

Electric gas leak detector for HFC refrigerant

Electronic scale for refrigerant charging

Refrigerant cylinder

Charging orifice and packing for refrigerant cylinder

CS-HE9DKE CU-HE9DKE / CS-HE12DKE CU-HE12DKE

12.3. Refrigerant Piping Work

12.3.1. Piping Materials

It is recommended that you use copper and copper alloy jointless pipes with a maximum oil adherence of 40 mg/10m. Do not use

pipes that are crushed, deformed, or discolored (especially the inside surface). If these inferior pipes are used, impurities may clog

the expansion valves or capillaries.

Because the pressure of ACs using R410A is higher than those using R22, it is essential that you select materials that are

appropriate for these standards.

The thickness of the copper tubing used for R410A is shown in Table 10. Please be aware that tubing with a thickness of only 0.7

mm is also available on the market, but this should never be used.

Table 10 Copper tube thickness (mm)

Soft pipe

Thickness (mm)

Nominal diameter

Outside diameter (mm)

R410A

0.80

(Reference) R22

1/4

3/8

1/2

6.35

9.52

12.7

0.80

12.3.2. Processing and Connecting Piping Materials

When working with refrigerant piping, the following points must

be carefully observed: no moisture od dust must be allowed to

enter the piping, and there must be no refrigerant leaks.

1. Procedure and precautions for flaring work

a. Cut the pipe

Use a pipe cutter, and cut slowly so the pipe will not be

deformed.

b. Remove burrs and clean shavings from the cut surface

If the shape of the pipe end is poor after removing burrs,

or if shavings adhere to the flared area, it may lead to

refrigerant leaks.

To prevent this, turn the cut surface downward and

remove burrs, then clean the surface, carefully.

Fig. 10 Flaring dimensions

c. Insert the flare nut (be sure to use the same nut that is

used on the AC unit)

d. Flaring

Check the clamp bar and the cleanliness of the copper

pipe.

Be sure to use the clamp bar to do the flaring with

accuracy. Use either an R410A flaring tool, or a

conventional flaring tool. Flaring tools come in different

sizes, so be sure to check the size before using. When

using a conventional flaring tool, use the copper pipe

gauge for clearance adjustment, etc., to ensure the

correct A dimension (see Fig. 10)

CS-HE9DKE CU-HE9DKE / CS-HE12DKE CU-HE12DKE

Fig. 11 Relation between the flare nut structure and flaring tool end

Table 11 R410A flaring dimensions

Nominal

diameter

Outside

diameter

(mm)

Wall thickness

(mm)

A (mm)

Conventional flaring tool

Clutch type

1.0 - 1.5

R410A flaring

tool, clutch type

Wing-nut type

1.5 - 2.0

1/4

3/8

1/2

6.35

9.52

12.70

0.8

0 - 0.5

2.0 - 2.5

Table 12 R22 flaring dimensions

Wall thickness

Nominal

diameter

Outside

diameter

(mm)

A (mm)

Conventional flaring tool

(mm)

R410A flaring

tool, clutch type

Clutch type

Wing-nut type

1.0 - 1.5

1/4

3/8

1/2

6.35

9.52

12.70

0.8

0 - 0.5

0.5 - 1.0

1.0 - 1.5

1.5 - 2.0

Table 13 R410A flare and flare nut dimensions Unit: mm

Nominal

diameter

Outside

diameter (mm)

Wall thickness

(mm)

A +0, -0.4

Flare nut

width

dimension

1/4

3/8

1/2

6.35

9.52

12.70

0.8

9.1

13.2

16.6

9.2

13.5

16.0

6.5

9.7

12.9

Table 14 R22 flare and flare nut dimensions Unit: mm

Nominal

diameter

Outside

diameter (mm)

Wall thickness

(mm)

A +0, -0.4

Flare nut

width

dimension

1/4

3/8

1/2

6.35

9.52

12.70

0.8

9.0

13.0

16.2

9.2

13.5

16.0

6.5

9.7

12.9

2. Procedure and precautions for flare connection

a. Check to make sure there is no scratches, dust, etc., on the flare and union.

b. Align the flared surface with the axial center of the union.

c. Use a torque wrench, and tighten to the specified torque. The tightening torque for R410A is the same as the conventional

torque value for R22. Be careful, because if the torque is too weak, it may lead to a gas leak. If it is too strong, it may split

the flare nut or make it impossible to remove the flare nut.

Table 15 R410A tightening torque

Nominal

diameter

Outside

diameter (mm)

Tightening torque

N.m (kgf.cm)

Torque wrench tightening torque

N.m (kgf.cm)

1/4

3/8

1/2

6.35

9.52

12.70

14 - 18 (140 - 180)

33 - 42 (330 -420)

55 (550)

18 (180)

42 (420)

55 (550)

CS-HE9DKE CU-HE9DKE / CS-HE12DKE CU-HE12DKE

12.3.3. Storing and Managing Piping Materials

1. Types of piping and their storage

The following is a general classification of the refrigerant pipe materials used for ACs.

Because the gas pressure of R410A is approximately 1.6 times as high as that of R22, copper pipes with the thickness shown

in Table 10, and with minimal impurities must be used. Care must also be taken during storage to ensure that pipes are not

crushed, deformed, or scratched, and that no dust, moisture or other substance enters the pipe interior. When storing sheathed

copper pipes or plain copper pipes, seal the openings by pinching or taping them securely.

2. Makings and management

a. Sheathed copper pipes and copper-element pipes

When using these pipes, check to make sure that they are the stipulated thickness. For flare nuts, be sure to used the same

nut that is used on the AC unit.

b. Copper pipes

Use only copper pipes with the thickness given in table 10, and with minimal impurities. Because the surface of the pipe is

exposed, you should take special care, and also take measures such as marking the pipes to make sure they are easily

distinguished from other piping materials, to prevent mistaken use.

3. Precautions during refrigerant piping work

Take the following precautions on-site when connecting pipes. (Keep in mind that the need to control the entry of moisture and

dust is even more important that in conventional piping).

a. Keep the open ends of all pipes sealed until connection with AC equipment is complete.

b. Take special care when doing piping work on rainy days. The entering of moisture will degrade the refrigerating machine oil,

and lead to malfunctions in the equipment.

c. Complete all pipe connections in as short a time as possible. If the pipe must be left standing for a long time after removing

the seal, it must be thoroughly purged with nitrogen, or dried with a vacuum pump.

CS-HE9DKE CU-HE9DKE / CS-HE12DKE CU-HE12DKE

12.4. Installation, Transferring, Servicing

12.4.1. Inspecting Gas Leaks with a Vacuum Pump for New Installations (Using New

Refrigerant Piping)

1. From the viewpoint of protecting the global environment, please do not release refrigerant into the atmosphere.

a. Connect the projecting side (pin-pushing side) of the charging hose for the manifold gauge to the service port of the 3-way

valve. (1)

b. Fully open the handle Lo of the manifold gauge and run the vacuum pump. (2) (If the needle of the low-pressure gauge

instantly reaches vacuum, re-check step a).)

c. Continue the vacuum process for at least 15 minutes, then check to make sure the low-pressure gauge has reached -0.1

MPa (-76 cmHg). Once the vacuum process has finished, fully close the handle Lo of the manifold gauge and stop the

vacuum pump operation, then remove the charging hose that is connected to the vacuum pump adaptor. (Leave the unit in

that condition for 1-2 minutes, and make sure that the needle of the manifold gauge does not return.) (2) and (3)

d. Turn the valve stem of the 2-way valve 90° counter-clockwise to open it, then, after 10 seconds, close it and inspect for a

gas leak (4)

e. Remove the charging hose from the 3-way valve service port, then open both the 2-way valve and 3-way valve. (1) (4) (Turn

the valve stem in the counter-clockwise direction until it gently makes contact. Do not turn it forcefully).

f. Tighten the service port cap with a torque wrench (18 N.m (1.8 kgf.m)). (5) Then tighten the 2-way valve and 3-way valve

caps with a torque wrench (42 N.m (4.2 kgf.m)) or (55 N.m (5.5 kgf.m)). (6)

g. After attaching each of the caps, inspect for a gas leak around the cap area. (5) (6)

Precautions

•

Be sure to read the instructions for the vacuum pump,

vacuum pump adaptor and manifold gauge prior to use,

and follow the instructions carefully.

•

Make sure that the vacuum pump is filled with oil up to

the designated line on the oil gauge.

The gas pressure back flow prevention valve on the

charging hose is generally open during use. When you

are removing the charging hose from the service port, it

will come off more easily if you close this valve.

Fig. 12 Vacuum pump air purging configuration

CS-HE9DKE CU-HE9DKE / CS-HE12DKE CU-HE12DKE

12.4.2. Transferring (Using New Refrigerant Piping)

1. Removing the unit

a. Collecting the refrigerant into the outdoor unit by pumping down

The refrigerant can be collected into the outdoor unit (pumping down) by pressing the TEST RUN button, even when the

temperature of the room is low.

•

Check to make sure that the valve stems of the 2-way valve and 3-way valve have been opened by turning them counter-

clockwise. (Remove the valve stem caps and check to see that the valve stems are fully opened position. Always use

a hex wrench (with 4-mm opposing sides) to operate the valve stems.)

•

Press the TEST RUN button on the indoor unit, and allow preliminary operation for 5-6 minutes. (TEST RUN mode)

After stopping the operation, let the unit sit for about 3 minutes, then close the 2-way valve by turning the valve stem in

the clockwise direction.

•

Press the TEST RUN button on the indoor unit again, and after 2-3 minutes of operation, turn the valve stem of the 3-

way valve quickly in the clockwise direction to close it, then stop the operation.

•

Tighten the caps of the 2-way valve and 3-way valve to the stipulated torque.

Remove the connection pipes (liquid side and gas side).

b. Removing the indoor and outdoor units

•

Disconnect the pipes and connecting electric cables from between the indoor and outdoor units.

Put capped flare nuts onto all of the pipe connections of the indoor and outdoor units, to make sure no dust or other

foreign matter enters.

•

Remove the indoor and outdoor units.

2. Installing the unit

Install the unit using new refrigerant piping. Follow the instructions in section 4.1 to evacuate the pipes connecting the indoor

and outdoor units, and the pipes of the indoor unit, and check for gas leaks.

12.4.3. AC Units Replacement (Using Existing Refrigerant Piping)

When replacing an R410A AC unit with another R410A AC unit, you should re-flare the refrigerant piping. Even though the

replacement AC unit uses the R410A, problems occur when, for example, either the AC unit maker or the refrigerating machine oil

is different.

When replacing an R22 AC unit with an R410A AC unit, the following checks and cleaning procedures are necessary but are

difficult to do because of the chemical characteristics of the refrigerating machine oil (as described in items c) and d) of section

About R410A Refrigerant). In this case, you should use new refrigerant piping rather than the existing piping.

1. Piping check

Because of the different pressure characteristics of R22 and R410A, the design pressure for the equipment is 1.6 times

different. The wall thickness of the piping must comply with that shown in Table 10, but this is not easy to check. Also, even if

the thickness is correct, there may be flattened or bent portions midway through the piping due to sharp curves. Buried sections

of the piping also cannot be checked.

2. Pipe cleaning

A large quantity of refrigerating machine oil (mineral oil) adheres to existing pipes due to the refrigeration cycle circulation. If the

pipes are used just as they are for the R410A cycle, the capacity will be lowered due to the incompatibility of this oil with the

R410A, or irregularities may occur in the refrigeration cycle. For this reason, the piping must be thoroughly cleaned, but this is

difficult with the present technology.

12.4.4. Refrigerant Compatibility (Using R410A Refrigerant in R22 ACs and Vice Versa)

Do not operate an existing R22 AC with the new R410A refrigerant. Doing so would result in improper functioning of the equipment

or malfunction, and might lead to a major accident such as an explosion in the refrigeration cycle. Similarly, do not operate an

R410A AC with R22 refrigerant. The chemical reaction between the refrigerating machine oil used in R410A ACs and the chlorine

that is contained in R22 would cause the refrigerating machine oil to degrade and lead to malfunction.

12.4.5. Recharging Refrigerant During Servicing

When recharging is necessary, insert the specified amount of new refrigerant in accordance with the following procedure.

1. Connect the charging hose to the service port of the outdoor unit.

2. Connect the charging hose to the vacuum pump adaptor. At this time, fully open the 2-way valve and 3-way valve.

3. Fully open the handle Lo of the manifold gauge, turn on the power of the vacuum pump and continue the vacuum process for

at least one hour.

4. Confirm that the low pressure gauge shows a reading of -0.1 Mpa (-76 cmHg), then fully close the handle Lo, and turn off the

CS-HE9DKE CU-HE9DKE / CS-HE12DKE CU-HE12DKE

vacuum pump. Wait for 1-2 minutes, then check to make sure that the needle of the Low pressure gauge has not returned. See

Fig. 13 for the remaining steps of this procedure.

5. Set the refrigerant cylinder onto the electronic scale, then connect the hose the cylinder and to the connection port for the

electronic scale. (1)(2)

Precaution:

Be sure to set up the cylinder for liquid charging. If you use a cylinder equipped with a siphon tube, you can charge the liquid

without having to turn the cylinder around

6. Remove the charging hose of the manifold gauge from the vacuum pump adaptor, and connect it to the connection port of the

electronic scale. (2)(3)

7. Open the valve of the refrigerant cylinder, then open the charging valve slightly and close it. Next, press the check valve of the

manifold gauge and purge the air. (2)(4) (Watch the liquid refrigerant closely at this point.)

8. After adjusting the electronic scale to zero, open the charging valve, then open the valve Lo of the manifold gauge and charge

with the liquid refrigerant. (2)(5) (Be sure to read the operating instructions for the electronic scale.)

9. If you cannot charge the stipulated amount, operate the unit in the cooling mode while charging a little of the liquid at a time

(about 150 g/time as a guideline). If the charging amount is insufficient from one operation, wait about one minute, then use the

same procedure to do the liquid charging again.

Precaution:

Never use the gas side to allow a larger amount of liquid refrigerant to be charged while operating the unit.

10. Close the charging valve, and after charging the liquid refrigerant inside the charging hose, fully close the valve Lo of the

manifold gauge, and stop the operation of the unit. (2)(5)

11. Quickly remove the charging hose from the service port. (6) If you stop midway through, the refrigerant that is in the cycle will

be discharged.

12. After putting on the caps for the service port and operating valve, inspect around the caps for a gas leak. (6)(7)

Fig. 13 Re-charging refrigerant

CS-HE9DKE CU-HE9DKE / CS-HE12DKE CU-HE12DKE

12.4.6. Brazing

As brazing requires sophisticated techniques and experiences, it must be performed by a qualified person.

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 (N₂) flow.

1. Attach a reducing valve to the nitrogen gas cylinder.

2. Apply a seal onto the clearance between the piping and inserted pipe for the nitrogen gas in order to prevent the nitrogen gas

from flowing backward.

3. When the nitrogen gas is flowing, be sure to keep the piping end open.

4. Adjust the flow rate of nitrogen gas so that it is lower than 0.05 m³/h, or 0.02 MPa (0.2 kgf/cm²) by means of the reducing valve.

5. After taking the steps above, keep the nitrogen gas flowing until the piping cools down to a certain extent (i.e. temperature at

which pipes are touchable with finger).

6. Completely remove the flux after brazing.

Fig. 14 Prevention of Oxidation during Brazing

Cautions during brazing

1. General Cautions

a. The brazing strength should be high as required.

b. After operation, airtightness should be kept under pressurized condition.

c. During brazing do not allow component materials to become damaged due to overheating.

d. The refrigerant pipe work should not become blocked with scale or flux.

e. The brazed part should not restrict the flow in the refrigerant circuit.

f. No corrosion should occur from the brazed part.

2. Prevention of Overheating

Due to heating, the interior and exterior surfaces of treated metal may oxidize. Especially, when the interior of the refrigerant

circuit oxidizes due to overheating, scale occurs and stays in the circuit as dust, thus exerting a fatally adverse effect. So,

make brazing at adequate brazing temperature and with minimum of heating area.

3. Overheating Protection

In order to prevent components near the brazed part from overheating damage or quality deterioration due to flame or heat,

take adequate steps for protection such as (1) by shielding with a metal plate, (2) by using a wet cloth, and (3) by means

of heat absorbent.

4. Movement during Brazing

Eliminate all vibration during brazing to protect brazed joints from cracking and breakage.

5. Oxidation Preventative

In order to improve the brazing efficiency, various types of antioxidant are available on the market. However, the

constituents of these are widely varied, and some are anticipated to corrode the piping materials, or adversely affect HFC

refrigerant, lubricating oil, etc. Exercise care when using an oxidation preventive.

12.4.7. Servicing Tips

The drier must also be replaced whenever replacing the refrigerant cycle parts. Replacing the refrigerant cycle parts first

before replacing the drier. The drier is supplied in a vacuum pack. Perform brazing immediately after opening the vacuum

pack, and then start the vacuum within two hours. In addition, the drier also needs to be replaced when the refrigerant has

leaked completely. (Applicable for drier model only.)

CS-HE9DKE CU-HE9DKE / CS-HE12DKE CU-HE12DKE

13 Servicing Information

13.1. About Lead Solder (PbF)

DISTINCTION OF PbF P.C. BOARD

P.C. Boards (manufactured) using lead free solder will have a PbF stamp on the P.C. Board.

CAUTION

•

Pb free solder has a higher melting point than standard solder; Typically the melting point is 50 - 70 °F (30 - 40 °C) higher.

Please use a high temperature solder iron and set it to 700 ± 20 °F (370 ± 10 °C)

•

Pb free solder will tend to slash when heated too high (about 1100 °F/ 600°C). If you must use Pb solder, please completely

all of the Pb free solder on the pins or solder area before applying Pb solder. If this is not practical, be sure to heat the Pb

free solder until it melts, before applying Pb solder.

CS-HE9DKE CU-HE9DKE / CS-HE12DKE CU-HE12DKE

13.2. Troubleshooting

Normal Pressure and Outlet Air Temperature (Standard)

Refrigeration cycle system

Gas pressure MPa

Outlet Air

Temperature (°C)

(kg/cm²G)

In order to diagnose malfunctions, make sure that there are

no electrical problems before inspecting the refrigeration

cycle. Such problems include insufficient insulation,

Cooling Mode

Heating Mode

0.9 - 1.2 (9 - 12) 12 - 16

2.3 - 2.9 (23 - 29) 36 - 45

problem with the power source, malfunction of

compressor and a fan.

Condition:

• Indoor fan speed; High

The normal outlet air temperature and pressure of the

refrigeration cycle depends on various conditions, the

standard values for them are shown in the table to the right.

• Outdoor temperature 35 °C at cooling more and 7 °C at

heating mode.

• Compressor operates at rated frequency

CS-HE9DKE CU-HE9DKE / CS-HE12DKE CU-HE12DKE

1. Relationship between the condition of the air conditioner and pressure and electric current

Cooling Mode

Heating Mode

Condition of the air

conditioner

Low Pressure

High Pressure

Electric current

during operation

Low Pressure

High Pressure

Electric current

during operation

Insufficient refrigerant

(gas leakage)

Clogged capillary tube

or Strainer

Short circuit in the

indoor unit

Heat radiation

deficiency of the

outdoor unit

Inefficient compression

•

Carry on the measurements of pressure, electric current, and temperature fifteen minutes after an operation is started.

CS-HE9DKE CU-HE9DKE / CS-HE12DKE CU-HE12DKE

13.2.1. BREAKDOWN SELF DIAGNOSIS FUNCTION

13.2.1.1. Self Diagnosis Function (Three Digits Alphanumeric Code)

•

Once abnormality has occurred during operation, the unit

will stop its operation, and Timer or both Timer and ION

LEDs blink. (The unit does not stop under ION abnormality.)

code transmitted from the remote controller are

matched, power LED will light up for 30 seconds and a

beep sound (continuously for 4 seconds) will be heard.

If no codes are matched, power LED will light up for 0.5

seconds and no sound will be heard.

Although Timer LED goes off when power supply is turned

off, if the unit is operated under a breakdown condition, the

LED will light up again.

7. The breakdown diagnosis mode will be canceled unless

pressing the CHECK button continuously for 5 seconds

or operating the unit for 30 seconds.

In operation after breakdown repair, the Timer LED will no

more blink. The last error code (abnormality) will be stored

in IC memory.

8. The same diagnosis can be repeated by turning power

on again.

• To make a diagnosis

1. Timer LED or both timer and ION LEDs start to blink and

the unit automatically stops the operation.

2. Press the CHECK button on the remote controller

continuously for 5 seconds.

3. “- - “ will be displayed on the remote controller display.

Note: Display only for “- -”. (No transmitting signal, no

receiving sound and no Power LED blinking.)

4. Press the “TEMP”

button on the remote

controller. The code “H00” (no abnormality) will be

displayed and signal will be transmitted to the main unit.

The power LED lights up. If no abnormality is stored in

the main unit memory, beep sound (3 beeps) will be

heard.

5. Every press of the button (up or down) will increase

abnormality numbers and transmit abnormality code

signal to the main unit.

• To clear memorized error (Protective operation) status

after repair:

6. When the latest abnormality code on the main unit and

code transmitted from the remote controller are

matched, power LED will light up for 30 seconds and a

beep sound (continuously for 4 seconds) will be heard.

If no codes are matched, power LED will light up for 0.5

seconds and no sound will be heard.

1. Turn power on.

2. Press the AUTO button for 5 seconds (A beep receiving

sound) on the main unit to operate the unit at Forced

Cooling Operation mode.

3. Remove the battery cover of the remote controller and

short-circuit the SET terminals. (A beep receiving

sound)

7. The breakdown diagnosis mode will be canceled unless

pressing the CHECK button continuously for 5 seconds

or operating the unit for 30 seconds.

8. The LED will be off if the unit is turned off or the RESET

button on the main unit is pressed.

• To display memorized error (Protective operation)

status:

1. Turn power on.

2. Press the CHECK button on the remote controller

continuously for 5 seconds.

•

Temporary Operation (Depending on breakdown

status)

3. “- - “ will be displayed on the remote controller display.

1. Press the AUTO button (A beep receiving sound) on the

main unit to operate the unit. (Remote control will

become possible.)

Note: Display only for “- -”. (No transmitting signal, no

receiving sound and no Power LED blinking.)

4. Press the “TEMP”

button on the remote

2. The unit can temporarily be used until repaired.

controller. The code “H00” (no abnormality) will be

displayed and signal will be transmitted to the main unit.

The power LED lights up. If no abnormality is stored in

the memory, three beeps sound will be heard.

Error Code

H23

H27, H28

H26

Operation

Cooling

Cooling, Heating

Cooling, Heating Emergency Operation without

power limit.

Temporary items

Emergency Operation with

limited power

5. Every press of the button (up or down) will increase

abnormality numbers and transmit abnormality code

signal to the main unit.

6. When the latest abnormality code on the main unit and

CS-HE9DKE CU-HE9DKE / CS-HE12DKE CU-HE12DKE

13.2.1.2. Error Code Table

Diagnosis

display

Abnormality / Protection control

Abnormality

Judgement

Emergency

operation

Primary location to verify

H11

Indoor / outdoor abnormal

communication

> 1 min after starting Indoor fan operation

• Internal / external cable

connections

operation

only

• Indoor / Outdoor PCB

H14

H15

H16

Indoor intake air temperature sensor

abnormality

Outdoor compressor temperature sensor

abnormality

Outdoor Current Transformer open

circuit

—

• Intake air temperature sensor

(defective or disconnected)

Continue for 5 sec.

—

• Compressor temperature sensor

(defective or disconnected)

• Outdoor PCB

• IPM (Power transistor) module

H19

Indoor fan motor mechanism lock

—

• Indoor PCB

• Fan motor

H23

H26

Indoor heat exchanger temperature

sensor abnormality

Ionizer abnormality

Continue for 5 sec.

—

• Heat exchanger temperature

(Cooling only)

sensor (defective or disconnected)

—

• Indoor PCB

• Ionizer

H27

H28

Outdoor air temperature sensor

abnormality

Outdoor heat exchanger temperature

sensor abnormality

Continue for 5 sec.

• Outdoor temperature sensor

(defective or disconnected)

• Outdoor heat exchanger

temperature sensor (defective or

disconnected)

H33

H97

Indoor/Outdoor wrong connection

Outdoor Fan Motor lock abnormality

—

• Indoor/Outdoor supply voltage

• Outdoor PCB

• Outdoor Fan Motor

H98

H99

F11

F91

Indoor high pressure protection

—

• Air filter dirty

• Air circulation short circuit

• Insufficient refrigerant

Indoor heat exchanger anti-freezing

protection

• Air filter dirty

• 4-way valve

Cooling / Heating cycle changeover

abnormality

4 times occurrence

within 30 minutes

• V-coil

• No refrigerant

Refrigeration cycle abnormality

2 times occurrence

within 20 minutes

(3-way valve is closed)

F93

F95

F96

Outdoor compressor abnormal revolution

Cool high pressure protection

4 times occurrence

within 20 minutes

4 times occurrence

within 20 minutes

—

• Outdoor compressor

• Outdoor refrigerant circuit

IPM (power transistor) overheating

protection

—

• Excess refrigerant

• Improper heat radiation

• IPM (Power transistor)

F97

F98

F99

Outdoor compressor overheating

protection

4 times occurrence

within 10 minutes

—

• Insufficient refrigerant

• Compressor

• Excess refrigerant

Total running current protection

3 times occurrence

within 20 minutes

• Improper heat radiation

• Outdoor PCB

Outdoor Direct Current (DC) peak

detection

7 times occurrence

continuously

• IPM (Power transistor)

• Compressor

Note:

“O” - Frequency measured and fan speed fixed.

The memory data of error code is erased when the power supply is cut off, or press the Auto Switch until “beep” sound heard

following by pressing the “RESET” button at remote controller.

Although operation forced to stop when abnormality detected, emergency operation is possible for certain errors (refer to Error

Codes Table) by using remote controller or Auto Switch at indoor unit. However, the remote controller signal receiving sound is

changed from one “beep” to four “beep” sounds.

CS-HE9DKE CU-HE9DKE / CS-HE12DKE CU-HE12DKE

13.3. Disassembly of Parts

6. Remove the Top Panel by pressing up the triangle marks (3

points) on it.

13.3.1. Disassembly of Indoor Unit

13.3.1.1. Removal of the Front Grille

1. Pull the Front Panel up slowly.

Note: Open it by holding up the curve-in on the Grille.

Fig. 5

7. Remove the Front Grille by pulling it up with taking notice of

the Chassis Complete and the hooks (four).

Fig. 1

Fig. 2

Fig. 6

2. Remove it inside by pressing Lever Arm with finger.

3. Remove the screw (one) in center part of the unit.

13.3.1.2. Removal of Control Board Box

1. Remove the Front Grille according to the procedure

13.3.1.1.

2. Remove the screws (two) for the interconnect cable holder

and the cable.

3. Remove the screws (two) fixing the Terminal Plate. (The

Terminal Plate will be in the air.)

Fig. 3

Fig. 7

4. Make the Vertical Louver level (horizontal).

5. Pull up the Screw Caps (2 parts) and remove the screws

(two) inside.

Fig. 8

Fig. 4

CS-HE9DKE CU-HE9DKE / CS-HE12DKE CU-HE12DKE

4. Pull up the Control Board Box and remove the Control

Board Cover A.

Fig. 11

4. Remove CN-DISP on the Display & Receiver Unit, CN-

SUB1 on the PCB (SUB) and connector on the Terminal

Plate.

Fig. 9

5. Remove the Control Board Box (Black plastic chassis) by

releasing the hooks (five).

5. Remove a variety of connectors and Terminals.

Wiring parts from the left side

•

CN-CLN ...... Cleaning Unit

CN-TH ...... Sensor Complete (Intake / Pipe Air

Temp.

•

Earth wire (yellow) ...... Remove the screw (one).

Terminal FG GRN (green)

Wiring parts from the bottom side

Fig. 12

•

Terminal Plate Connector

CN-STM1 ...... Air Swing Motor For Louver

(Horizontal Louver)

6. Remove the PCB from the BOX.

•

CN-STM2 ...... Air Swing Motor For Louver

(Vertical Louver)

•

CN-STM3 ...... Front Panel Motor

CN-SUB1 ...... Printed Circuit Board (SUB)

CN-DISP ...... Display & Receiver Unit

CN-KANKI ...... Ventilation Motor

CN-FM ...... Indoor Unit Fan Motor

CN-CLNSW ...... Micro Switch (Air Cleaning)

Terminal Plate Connector

Fig. 13

13.3.1.4. Removal of Fan Motor and

Cross-Flow Fan

6. Remove the Control Board Box by pulling it out more.

1. Remove the Front Grille according to the procedure

13.3.1.1.

2. Remove the Control Board Box according to the procedure

13.3.1.2.

3. Remove the Discharge Grille. (Drain Hose)

Note: Pulling up the Discharge Grille a little can make

the Drain Hose easy to be removed.

Fig. 10

13.3.1.3. Removal of Control Board

1. Remove the Front Grille according to the procedure

13.3.1.1.

2. Remove the Control Board Box according to the procedure

13.3.1.2.

3. Remove the Control Board Cover B.

Fig. 14

CS-HE9DKE CU-HE9DKE / CS-HE12DKE CU-HE12DKE

4. Remove the Fan Motor Cover by removing the screws (four)

on it.

7. Remove the Fan Boss by holding up the Heat Exchanger a

little.

Fig. 15

Fig. 18

5. Remove the screws (two) on the left side of the Heat

Exchanger.

8. Pull out the Cross-Flow Fan by holding up the left side of

the Heat Exchanger.

Fig. 19

Fig. 16

9. Pull out the Fan Motor.

6. Loosen the screw (one) between the Cross-Flow Fan and

Fan Motor.

Fig. 20

Fig. 17

Fig. 21

CS-HE9DKE CU-HE9DKE / CS-HE12DKE CU-HE12DKE

13.3.1.5. Removal of Oxygen Discharge

Outlet

1. Remove the Front Grille according to the procedure

13.3.1.1.

2. Remove the Oxygen Discharge Outlet from the Heat

Exchanger and remove the Oxygen Tube by releasing the

hooks (four) on the plastic part.

Fig. 25

Note: The Oxygen Discharge Outlet is on the left side.

13.3.1.7. Removal of Ventilation Motor

1. Remove the Front Grille according to the procedure

13.3.1.1.

2. Remove the Connector (white) for the Ventilation Motor and

the screws (two).

Fig. 22

Fig. 26

Fig. 23

13.3.1.6. Removal of Air Swing Motors for

Vertical and Horizontal Louvers

1. Remove the Front Grille according to the procedure

13.3.1.1.

2. Remove the Discharge Grille.

Fig. 27

Note: Pulling up the Discharge Grille a little can make

the Drain Hose easy to be removed.

3. Pulling out the Ventilation Motor by releasing the hook

(one).

•

The Air Swing Motor for Vertical Louver can be removed

without removal of the Discharge Grille.

Note: The Fan Joint Duct Part under the Ventilation

Motor can not be removed. Remove the Indoor unit

from the Chassis Complete for servicing.

Fig. 24

3. Remove the Motors by removing the screws (one each) for

the Motors and the cable connector.

Fig. 28

CS-HE9DKE CU-HE9DKE / CS-HE12DKE CU-HE12DKE

13.3.1.8. Removal of Front Panel Motor

1. Remove the Front Grille according to 13.3.1.1.

2. Remove the Motor by removing the screw (one). Be careful

of the Heat Exchanger Fins.

Note: Replace a plastic part of the Front Panel Motor

with a new plastic complete part for servicing in order

to avoid loss of the parts such as gear although it can

be disassembled with a precision screwdriver.

Fig. 29

Fig. 30

13.3.1.9. Removal of Ionizer

Remove the Ionizer from the Heat Exchanger by unscrewing

the screw (One) on the lower right.

Fig. 31

CS-HE9DKE CU-HE9DKE / CS-HE12DKE CU-HE12DKE

13.3.2. Disassembly of Outdoor Unit

13.3.2.2. Removal of Control Cover and

Terminal Cover

13.3.2.1. Removal of Cabinet Top Plate

and Cabinet Front Plate

1. Remove the Front Grille according to the procedure

13.3.1.2.

1. Remove the screws (three: two on the right side and one on

the left side) and the Cabinet Top Plate.

2. Remove the screw (one) on the Control Cover and remove

it by sliding it downward.

2. Remove the screws (six: three on the upper side and

another three on the lower side) on the Cabinet Front Plate.

Fig. 3

Fig. 1

3. Remove the Terminal Cover by removing the screws (two)

and releasing the hooks (two).

3. Release the hooks (four: two on the right and another two

on the left) of the Cabinet Front Plate and remove the Front

Plate by holding it up a little.

Fig. 2

Fig. 4

CS-HE9DKE CU-HE9DKE / CS-HE12DKE CU-HE12DKE

the Cabinet Side Plate.

13.3.2.3. Removal of Control Box

1. Remove the Cabinet Top Plate and Cabinet Front Plate

according to 13.3.2.1.

2. Remove the Control Cover and Terminal Cover according

to 13.3.2.2.

3. Remove the Control Board by releasing the hooks (four: two

each on the right and left).

Fig. 7

7. Remove the Control Box from the unit by holding it up.

Fig. 5

4. Remove the screw (one) fixing the Control Box.

Fig. 8

13.3.2.4. Removal of Control Board

1. Remove the Cabinet Top Plate and Cabinet Front Plate

according to 13.3.2.1.

Fig. 6

2. Remove the Control Cover and Terminal Cover according

to 13.3.2.2.

5. Remove a variety of connectors and Terminals.

3. Remove the Control Box according to 13.3.2.3.

4. Disconnect the Control Terminals (Four cables).

•

Compressor cables (red, blue and yellow)

...... Remove the Connector (white).

•

CN-HOT ...... 4-way Valve

CN-FM1 ...... Outdoor Fan Motor

CN-STM ...... Expansion Valve

CN-TH

...... Sensor Complete (Outdoor Air/Pipe Temp.)

•

CN-DIS

...... Sensor Complete (Discharge Air Temperature)

•

CN-COLD ......... Oxygen 2-way Valve)

Vacuum pump Cables (red, white and black)

...... remove the Connector white).

Fig. 9

•

Reactor Connectors (two)

6. Remove the interconnect cables and the Earth Wire (one

screw).

•

Interconnect cables (red, white and black)

......... Disconnect them from the Terminals.

The earth terminal (yellow-green)

......... Remove it by unscrewing. (one screw)

Remove the screws (two) fixing the Terminal part and

CS-HE9DKE CU-HE9DKE / CS-HE12DKE CU-HE12DKE

5. Place the Control Box reversely and remove the screws

(two) on the both sides of the Control Box B (for Terminal

Plate).

13.3.2.5. Removal of Propeller Fan and

Fan Motor

1. Remove the Cabinet Top Plate and Cabinet Front Plate

according to 13.3.2.1.

2. Remove the Control Box by releasing the hooks (four: two

each on the both sides).

Fig. 10

Fig. 13

6. Release the hooks (four) on the Control Box A (Lower

Control PCB Cover).

3. Remove only the Connector for the CN-FM1 (Outdoor unit

Fan Motor).

Note: Be careful of hanging-up of connectors or wiring

cables such as the earth wire when the Box A is

removed.

4. Remove the Propeller Fan by turning the nut in the center

of the fan clockwise.

Fig. 14

5. Remove the Fan Motor by loosening the screw (four).

Fig. 11

7. For the Control Board, replacement is made together with

the Control Box.

Fig. 15

Note: Adjust the location of the Boss in the center of

the Propeller and the matching groove on the shaft of

the Motor when putting them together.

Fig. 12

• Replacement of the Outdoor Control PCB should be

made as a whole unit due to silicon pasting, etc.

although it can be separated PCB part from Control

BOX plastic part by removing the screws (six) on

the PCB.

Fig. 16

CS-HE9DKE CU-HE9DKE / CS-HE12DKE CU-HE12DKE

Fig. 17

Fig. 20

13.3.2.6. Removal of Vacuum Pump

1. Remove the Cabinet Top Plate and Cabinet Front Plate

according to 13.3.2.1.

•

Connect two hoses correctly when reassembling the

Vacuum Pump. Incorrect connection may cause failure.

2. Remove the Control Cover and Terminal Cover according

to 13.3.2.2.

7. Remove the screws (three) for the Vacuum Pump.

3. Remove the screws (two) fixing Terminal part and the

Cabinet Side Plate.

Fig. 21

Fig. 18

8. Remove the Vacuum Pump by holding up the backside of

the Vacuum Pump Holder a little and pulling it in with

inclined to the left side.

4. Remove the Cabinet Side Plate by removing the screws

(five).

•

A screw of among the five is under the back side of the

Outdoor unit.

Fig. 22

Fig. 19

5. Disconnect the cable of the Vacuum Pump from the

Connector (white).

6. Disconnect the hose from the Vacuum Pump by loosening

the clip with tools such as pliers.

Note: Do not remove the connecting materials (Black

rubber) on the intake side from the hose.

CS-HE9DKE CU-HE9DKE / CS-HE12DKE CU-HE12DKE

14 Technical Data

14.1. Operation Characteristics

CS-HE9DKE CU-HE9DKE

CS-HE9DKE CU-HE9DKE / CS-HE12DKE CU-HE12DKE

CS-HE12DKE CU-HE12DKE

CS-HE9DKE CU-HE9DKE / CS-HE12DKE CU-HE12DKE

14.2. Sensible Capacity Chart

CS-HE9DKE CU-HE9DKE

230V

Outdoor Temp. (°C)

Indoor wet

bulb temp.

SHC

2.33

SHC

2.24

SHC

2.14

SHC

2.03

2.58

0.46

2.24

0.54

2.04

0.59

17.0°C

19.0°C

19.5°C

22.0°C

2.41

2.60

2.65

2.88

0.50

0.51

0.53

2.83

3.09

2.44

2.52

0.47

0.49

2.34

2.43

2.46

2.68

2.25

2.34

0.55

0.57

2.24

2.44

2.14

2.24

0.60

0.62

CS-HE12DKE CU-HE12DKE

230V

Outdoor Temp. (°C)

Indoor wet

bulb temp.

3.42

SHC

2.86

0.77

SHC

2.75

2.97

SHC

2.64

0.90

2.70

SHC

2.51

0.97

17.0°C

19.0°C

19.5°C

22.0°C

3.20

3.45

3.51

3.83

0.84

0.85

0.87

3.76

4.10

3.01

3.12

0.79

0.80

2.89

3.00

3.27

3.56

2.78

2.89

0.92

0.94

2.97

3.24

2.64

2.75

0.99

1.01

CS-HE9DKE CU-HE9DKE / CS-HE12DKE CU-HE12DKE

15 Exploded View and Replacement Parts List

15.1. Exploded View (Indoor Unit)

Note:

The above exploded view is for the purpose of parts disassembly and replacement.

CS-HE9DKE CU-HE9DKE / CS-HE12DKE CU-HE12DKE

The non-numbered parts are not kept as standard service parts.

15.2. Replacement Parts List (Indoor Unit)

<Models: CS-HE9DKE / CS-HE12DKE>

REF. NO.

PART NAME & DESCRIPTION

QTY.

CS-HE9DKE

CWD50C50C1430

CWD601065

CS-HE12DKE

REMARKS

CHASSY COMPLETE

L-PLATE

←

INSTALLATION PLATE

PARTICULAR PLATE

CWH361054

CWD911316

FAN MOTOR

ARW41X8P30AC

CWD911313

FAN MOTOR PLATE

CROSS FLOW FAN

CWH02C1024

CWH64K1005

CWH4580304

CWE20C2430

CWE241129

D7-1

D7-2

BERING ASS’Y

SCREW - CROSS FLOW FAN

DISCHARGE GRILLE COMPLETE

VERTICAL VANE

D8-1

D8-2

D8-3

D8-4

D8-5

D8-6

D8-7

D8-8

D8-9

D8-10

D8-11

HORIZONTAL VANE (LEFT)

HORIZONTAL VANE (RIGHT)

CAP (FOR VERTICAL VANE BERING)

AIR SWING MOTOR (HORIZONTAL VANE)

PROTECTION COVER (RIGHT)

GEAR (FOR HORIZONTAL VANE)

FULCRUM

CWE24C1054

CWE24C1055

CWH52160

CWA981107J

CWH811018

CWH68C1017

CWH621031

←

AIR SWING MOTOR (VERTICAL VANE)

PROTECTION COVER (LEFT)

CAP (DRAIN CAP)

CWA981105J

CWH811019

CWH521091

DRAIN HOSE

CWH851107

ELECTRONIC CONTROLLER - MAIN

CONTROL COVER - 1

CWA73C1870

CWH131163

CWA73C1871

←

CONTROL COVER - 3

CWH13K1010

CWH121009

CONTROL BOARD BOX

TERMINAL BOARD COMPLETE

SWITCH (MICRO SW)

CWA28C2192

K0KABF000013

CWD932308

SWITCH HOLDER

E10

E11

E12

E13

E14

E15

E16

E18

CORD HOLDER

CWD77002

POWER SUPPLY CORD

CWA20C2441

CWA743835

ELECTRONIC CONTROLLER (SUB)

ELECTRONIC CONTROLLER (RECEIVER, DISPLAY)

HOLDER - ELECTRONIC CONTROLLER (RECEIVER, DISPLAY)

CONTROL COVER - 2

CWA743834

CWD932309

CWH131165

SENSOR COMPLETE (INTAKE AIR, PIPE)

ANTI-WATER SPLASHING PLASTIC

FRONT GRILLE COMPLETE

FRONT PANEL

CWA50C2286

CWD911317

CWE11C3293XA

CWE22C1206XA

CEW221090

F1-1

F1-2

F1-3

F1-4

TOP INTAKE GRILLE

GRILLE DOOR

CWE141060XA

CWE39C1085

CWH94C0006

CWH521088

OXYGEN MONITOR

ION GENERATOR

CAP (SCREW CAP)

GEAR (FRONT PANEL MOTOR)

AIR FILTER

CWH68C1021

CWD001163

EVAPORATOR

CWB30C1725

CWT25086 (1/4”)

CWT25087 (3/8”)

CWD932334

CWB30C1729

FLARE NUT (1/4”)

←

FLARE NUT (3/8”)

CWT25096 (1/2”)

ANTI-FITTING PLASTIC

BOX

←

CWD76C1015

CWH88000

BELT

REMOTE CONTROL COMPLETE

REMOTE CONTROL HOLDER

OPEARTING INSTRUCTIONS

INSTALLATION INSTRUCTIONS

CWA75C2688X

CWH361046

Z2-1

Z2-2

Z2-3

CWF564743

CWF564897

(Note)

•

All parts are supplied from ACD, Japan.

“O” marked parts are recommended to be kept in stock.

CS-HE9DKE CU-HE9DKE / CS-HE12DKE CU-HE12DKE

15.3. Exploded View (Outdoor Unit)

Note:

The above exploded view is for the purpose of parts disassembly and replacement.

The non-numbered parts are not kept as standard service parts.

CS-HE9DKE CU-HE9DKE / CS-HE12DKE CU-HE12DKE

15.4. Replacement Parts List (Outdoor Unit)

<Models: CU-HE9DKE / CU-HE12DKE>

REF NO.

DESCRIPTION & NAME

QTY.

CU-HE9DKE

CWD50K2103

CU-HE12DKE

REMARKS

CHASSY COMPLETE

FAN MOTOR BRACKET

FAN MOTOR

←

CWD541021

ARW44X8P40AC

CWH55252J

CWH03K1014

CWH561034J

CWMD910001X2

CWH151076

G0A193M00003

CWH351029

XVG6B14VW

CWH131244X

CWH102284

CWA38K1121

CWH102244X

CWA73C1819R

CWA50C2281

CWH321025

CWA50C2219

CWA67C5736

CWH131206XF

CWE06C1126

CWE04C1064

CWE041132

CWE161013

CWE031053

CWMH13C0002

CWD041046

CWB092332

CWH501022

CWH56000J

CWH7070603

CWH17006

SCREW - FAN MOTOR MOUNT

PROPELLER FAN

NUT - PROPELLER FAN

FAN MOTOR MOUNT PLATE (UPPER)

SOUND PROOF MATERIAL

REACTOR

G0A193M00002

D10

D11

HOLDER - COUPLING

←

SCREW -COUPLING MOUNT

CONTROL COVER (TERMINAL PLATE COVER)

CONTROL PLATE CASING (TERMINAL BOARD)

TERMINAL BOARD

CONTROL BOARD (ELECTRONIC CONTROLLER - LOWER)

ELECTRONIC CONTROLLER

CWA73C1820R

E12

E13

E14

E17

E18

SENSOR COMPLETE (DISCHARGE TEMP.)

SENSOR HOLDER (DISCHARGE TEMP.)

SENSOR COMPLETE (OUTDOOR, PIPE TEMP.)

LEAD WIRE COMPLETE (COMPRESSOR)

CONTROL BOARD COVER

←

CABINET FRONT PLATE

CABINET SIDE PLATE (RIGHT)

CABINET SIDE PLATE (LEFT)

HANDLE

CABINET TOP PLATE

CONTROL BOARD COVER (2-, 3-WAY VALVE COVER)

WIRE NET

COMPRESSOR

ANTI-VIBRATION BUSHING (COMPRESSOR)

NUT - COMPRESSOR MOUNT

RUBBER GASKET (COMPRESSOR)

TERMINAL COVER (COMPRESSOR)

NUT - TERMINAL COVER

CWH7080300J

CWG302303

CWT334002

CWB14011

SOUND PROOF MATERIAL (COMPRESSOR)

MULTI BEND TUBE (COMPRESSOR - LIQUID RECEIVER)

LIQUID RECEIVER (MULTI BEND TUBE - MULTI BEND TUBE)

MULTI BEND TUBE (LIQUID RECEIVER - 4-WAY VALVE)

4-WAY VALVE

R10

R11

R12

R13

R14

R15

CWT333570

CWB001037J

CWA43C2144J

CWT333567

CWB32C1343BX

CWT023319

CWB051016J

CWMH510005

CWA43C2058J

CWB101016

CWD791001

CWB021129J

CWH521098

CWT25086

V-COIL COMPLETE (4-WAY VALVE)

MULTI BEND TUBE (4-WAY VALVE - CONDENSER)

CONDENSER

TUBE ASS’Y

R15-1 EXPANSION VALVE

R16

R17

R18

R19

R20

BUSHING

V-COIL COMPLETE (EXPANSION VALVE)

DRYER

LIQUID RECEIVER HOLDER

2-WAY VALVE

←

R20-1 CAP (VALVE ROD)

R22

R23

FLARE NUT (1/4”)

3-WAY VALVE

CWB011165J

CWH521098

CWH521099

CWT25087 (3/8”)

CWT333568

CWB111004

CWT231329

CWG02303

CWB011316J

R23-1 CAP (VALVE ROD)

CWH521130

R23-2 CAP (SERVICE PORT)

←

R25

R26

R27

R28

R29

FLARE NUT

CWT25096 (1/2”)

MULTI BEND TUBE (4-WAY VALVE - STRAINER)

STRAINER (MULTI BEND TUBE - U-TUBE)

U-TUBE (STARINER - CONDENSER)

SOUND PROOF BOARD

←

FILTER (OXYGEN GENERATOR) HOLDER - 1

FILTER (OXYGEN GENERATOR)

FILTER (OXYGEN GENERATOR)HOLDER - 2

FLEXIBLE PIPE COMPLETE (2-WAY VALVE - FILTER)

2-WAY VALVE (OXYGEN SUPPLY)

FLEXIBLE PIPE COMPLETE (2-WAY VALVE - VACUUM PUMP)

TUBE CONNECTOR

CWD911429

CWD071012

CWD911430

CWH851078

CWB021126J

CWH851079

CWT291049

CWH881060

CWB532034J

DS441125QP-E

CWD911283

BELT

S10

S11

S13

OXYGEN PUMP

CAPACITOR

OXYGEN PUMP MOUNT PLATE

CS-HE9DKE CU-HE9DKE / CS-HE12DKE CU-HE12DKE

REF NO.

S14

DESCRIPTION & NAME

QTY.

CU-HE9DKE

CWD911284

CU-HE12DKE

REMARKS

OXYGEN PUMP SUPPORTING PLATE

ANTI-VIBRATION BUSHING (OXYGEN PUMP)

BOLT COMPLETE

←

S15

CWH501079

CWH55C1007J

CWH851077

CWH581003J

CWT291029

CWH85C1032

S16

S17

FLEXIBLE PIPE

S19

SPACER

S20

TUBE CONNECTOR

S21

OXYGEN TUBE - INTER CONNECT

(Note)

•

All parts are supplied from ACD, Japan.

“O” marked parts are recommended to be kept in stock.

[ACD] Printed in Japan

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