Panasonic Cs C9dku User Manual

Order No. MAC0502033C1

Air Conditioner

CS-C9DKU CU-C9DKU

CS-C12DKU CU-C12DKU

CONTENTS

Page

1 Features

8.5. Indoor Fan Speed Control

8.6. Outdoor Fan Speed Control

8.7. Vertical Airflow Direction Control

8.8. Horizontal Airflow Direction Control

8.9. Powerful Operation

2 Functions

3 Product Specifications

3.1. CS-C9DKU CU-C9DKU

3.2. CS-C12DKU CU-C12DKU

4 Dimensions

8.10. Quiet Operation

4.1. Indoor Unit & Remote Control

4.2. Outdoor Unit

8.11. Timer Control

8.12. Random Auto Restart Control

8.13. Remote Control Signal Receiving Sound

8.14. Economy Mode Operation

9 Operating Instructions

5 Refrigeration Cycle Diagram

6 Block Diagram

7 Wiring Diagram

8 Operation Details

8.1. Cooling Operation

8.2. Soft Dry Operation

8.3. Automatic Operation

8.4. Operation Control

10 Installation Instructions

10.1. Safety Precautions

10.2. Attached accessories

10.3. Select the best location

10.4. Indoor/Outdoor Unit Installation Diagram

and distribution is a violation of law.

CS-C9DKU CU-C9DKU / CS-C12DKU CU-C12DKU

2 Functions

CS-C9DKU CU-C9DKU / CS-C12DKU CU-C12DKU

3 Product Specifications

3.1. CS-C9DKU CU-C9DKU

Unit

Indoor unit

Outdoor unit

Power Source (Phase, Voltage, Cycle)

Cooling Capacity

Moisture Removal

ø, V, Hz

kW (BTU/h)

l/h (Pint/h)

Single, 115, 60

2.58 (8,800)

1.0 (2.1)

Airflow Method

OUTLET

SIDE VIEW

TOP VIEW

INTAKE

Air Volume

m³/min (cfm)

dB (A)

4.7 (164) - 4.7 (164)

5.7 (202) - 5.7 (202)

7.2 (250) - 7.2 (250)

7.8 (274) - 7.8 (274)

High 36 - 36, Low 26 - 26

High 49 - 39

—

33.8 (1,190)

—

High 49

High 62

SHi

Noise Level

Power level dB

Electrical Data

Input Power

Running Current

EER

790

7.2

3.27 (11.10)

42.0

W/W (BTU/hW)

Starting Current

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”

Drain

Hose

Inner diameter

Length

inch (mm)

20/32 (16)

25-19/32 (650)

—

Power Cord

Number of core-wire

Height

Width

—

Dimensions

inch (mm)

lb (kg)

11 - 1/32 (280)

31 - 15/32 (799)

7 - 7/32 (183)

20 (9.0)

21 - 1/4 (540)

30 - 23/32 (780)

11 - 3/8 (289)

64 (29)

Rotary (1 cylinder)

rolling piston type

Depth

Net Weight

Compressor

Description

—

Motor

Rated

Type

Output

—

Induction (2-poles)

600

Fan Motor

Description

Material

Type

Input

Rated

Cross-flow Fan

ASG32K1

Induction (4-poles)

60.61

Propeller Fan

PP Resin

Induction (6-poles)

85.8

Output

Fan Speed Low

Medium

rpm

750 - 750

920 - 920

1,160 - 1,160

1,250 - 1,250

Evaporator

Copper

—

845

—

High

SuperHigh

Heat Exchanger

Description

Tube material

Fin material

Fin Type

Condenser

Copper

Aluminium (Blue Coat)

Louver Fin

Aluminium (Pre Coat)

Slit Fin

Row / Stage

(Plate fin configuration, forced draft)

2 × 15

1 × 20

FPI

Size (W × H × L)

inch (mm)

24-1/32 ×12-13/32 × 1

(610 × 315 × 25.4)

33-4/32 × 20-3/8 × 28/32

(841 × 508 × 22)

Refrigerant Control Device

Refrigeration Oil

—

Capillary Tube

SUNISO 4GDID or ATMOS M60

or ATMOS 56

(cm³)

g (oz)

Refrigerant (R-22)

—

680 (24.0)

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Unit

Indoor unit

Outdoor unit

Thermostat

Electrical

—

Protection Device

Capillary Tube

—

2 Stage Overload Protector

Length

Flow Rate

Inner Diameter

Material

Style

inch (mm)

l/min

inch (mm)

26-18/32 (675)

13.0

20/32 (1.6)

—

Air Filter

P.P.

Honeycomb

Capacity Control

Capillary Tube

Compressor Capacitor

Fan Motor Capacitor

µF, VAC

—

35 µF, 370VAC

8.0 µF, 230VAC

5.0 µF, 230VAC

Note:

• Specifications are subjected to change without prior notice for further improvement.

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3.2. CS-C12DKU CU-C12DKU

Unit

Indoor unit

Outdoor unit

Power Source (Phase, Voltage, Cycle)

Cooling Capacity

Moisture Removal

ø, V, Hz

kW (BTU/h)

l/h (Pint/h)

Single, 115, 60

3.60 (12,300)

1.6 (3.4)

Airflow Method

OUTLET

INTAKE

SIDE VIEW

TOP VIEW

Air Volume

m³/min (cfm)

dB (A)

5.6 (199) - 5.6 (199)

6.8 (238) - 6.8 (238)

8.0 (280) - 8.0 (280)

8.2 (289) - 8.2 (289)

High 39 - 39, Low 29 - 29

High 52 - 42

—

31.1(1,100)

—

High 49

High 62

SHi

Noise Level

Power level dB

Electrical Data

Input Power

Running Current

EER

1.16

10.3

3.10 (10.60)

57.0

W/W (BTU/hW)

Starting Current

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

inch (mm)

20 / 32 (16)

25-19/32 (650)

—

Power Cord

Number of core-wire

Height

Width

—

Dimensions

inch (mm)

lb (kg)

11 - 1/32 (280)

31 - 15/32 (799)

7 - 7/32 (183)

20 (9.0)

21 - 1/4 (540)

30 - 23/32 (780)

11 - 3/8 (289)

73 (33)

Depth

Net Weight

Compressor

Description

—

Rotary (1 cylinder) rolling piston

type

Motor

Rated

Description

Material

Motor

Type

Output

—

Induction (2-poles)

850

Propeller Fan

PP Resin

Induction (6-poles)

66.0 - 75.0

Fan Motor

Cross-flow Fan

ASG32K1

Induction (4-poles)

60.61

Type

Input

Output

Rated

Fan Speed Low

Medium

rpm

900 - 900

—

1,080 - 1,080

1,280 - 1,280

1,310 - 1,310

Evaporator

Copper

High

SuperHigh

820 - 820

—

Condenser

Copper

Heat Exchanger

Description

Tube material

Fin material

Fin Type

Aluminium (Pre Coat)

Slit Fin

Aluminium (Blue Coat)

Louver Fin

Row / Stage

(Plate fin configuration, forced draft)

2 × 15

2 × 24

FPI

Size (W × H × L)

inch (mm)

24-1/32 × 12-13/32 × 1

(610 × 315 × 25.4)

29-10/32;28-15/32 × 19-27/32 ×

744.2;723.5 × 504 × 25.4

Refrigerant Control Device

Refrigeration Oil

—

Capillary Tube

ATMOS M60 or SUNISO 4GDID

or ATMOS M56

760 (26.8)

—

2 Stage Overload Protector

(cm³)

g (oz)

Refrigerant (R-22)

Thermostat

Protection Device

—

Electrical

—

CS-C9DKU CU-C9DKU / CS-C12DKU CU-C12DKU

Unit

inch (mm)

l/min

Indoor unit

Outdoor unit

16-23/32 (425)

18.0

2/32 (1.7)

—

Capillary Tube

Air Filter

Length

Flow Rate

Inner Diameter

Material

Style

—

inch (mm)

P.P.

Honeycomb

Capacity Control

Capillary Tube

Compressor Capacitor

Fan Motor Capacitor

µF, VAC

—

50 µF, 370VAC

8.0 µF, 230VAC

5.0 µF, 230VAC

Note:

• Specifications are subjected to change without prior notice for further improvement.

CS-C9DKU CU-C9DKU / CS-C12DKU CU-C12DKU

4 Dimensions

4.1. Indoor Unit & Remote Control

CS-C9DKU CU-C9DKU / CS-C12DKU CU-C12DKU

4.2. Outdoor Unit

CU-C9DKU

CU-C12DKU

CS-C9DKU CU-C9DKU / CS-C12DKU CU-C12DKU

5 Refrigeration Cycle Diagram

CS-C9DKU CU-C9DKU

CS-C12DKU CU-C12DKU

CS-C9DKU CU-C9DKU / CS-C12DKU CU-C12DKU

6 Block Diagram

CS-C9DKU CU-C9DKU

CS-C12DKU CU-C12DKU

CS-C9DKU CU-C9DKU / CS-C12DKU CU-C12DKU

7 Wiring Diagram

CS-C9DKU CU-C9DKU

REMARKS

CS-C12DKU CU-C12DKU

: BLUE

GRY

: BROWN

: BLACK

: GRAY

: ORANGE

: PINK

: RED

: WHITE

Y/G

: YELLOW/GREEN

Power Supply Cord

Resistance of Indoor Fan Motor Windings

MODEL

CS-C9DKU

CS-C12DKU

CWA921143

82.4 Ω

CONNECTION

BLUE-YELLOW

YELLOW-RED

103.4 Ω

Note: Resistance at 68°F of ambient temperature.

Resistance of Outdoor Fan Motor Windings

MODEL

CU-C9DKU

CU-C12DKU

CWA951244

61.2 Ω

CONNECTION

BLUE-YELLOW

YELLOW-RED

53.4 Ω

Note: Resistance at 78.8°F of ambient temperature.

Resistance of Compressor Windings

MODEL

CONNECTION

C - R

CU-C9DKU

2R135126A

0.938 Ω

CU-C12DKU

2P19S126C-1A

0.613 Ω

C - S

2.611 Ω

2.106 Ω

Note: Resistance at 77°F/68°F of ambient temperature.

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8 Operation Details

8.1. Cooling Operation

• Cooling operation can be set using remote control.

• This operation is applied to cool down the room temperature reaches the setting temperature set on the remote control.

• The remote control setting temperature, which takes the reading of intake air temperature sensor, can be adjusted from 60.8°F

to 86°F.

• During cooling operation, the compressor will stop running and restart as shown in below figure.

8.1.1.

Cooling Operation Time Diagram

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8.2. Soft Dry Operation

• Soft Dry operation can be set using remote control.

• Soft Dry operation is applied to dehumidify and to perform a gentle cooling to the room.

• This operation starts when the intake air temperature sensor reaches the setting temperature on the remote control.

• When operation begins, Soft Dry will be switched “ON” for a maximum 10 minutes, then Soft Dry operation will be turned “OFF”

for a minimum 6 minutes. After that, the Soft Dry operation will be “ON” and “OFF” based on the setting temperature as shown

in below figure.

• However after 3 minutes of compressor off, during Soft Dry “OFF” (within 6 minutes Soft Dry restart control), the indoor unit will

start to operate at normal Cooling mode if the intake temperature is higher than Cooling “ON” point.

8.2.1.

Soft Dry Operation Time Diagram

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8.3. Automatic Operation

• Automatic operation can be set using remote control.

• This operation starts to operate with indoor fan at SLo speed for 20 seconds to judge the intake air temperature.

• After judged the temperature, the operation mode is determined by referring to the below standard.

• Then, the unit start to operate at determined operation mode, until it is switched off using remote control, with the setting

temperature as shown in below table.

• The setting temperature for all the operations can be changed one level up or one level down from the standard temperature

as shown in below table by pressing on the temperature up or temperature down button at remote control.

• The operation mode judging temperature and standard setting temperature can be increased by 3.6°F permanently, by open

the circuit of JX1 at indoor electronic controller.

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8.4. Operation Control

8.4.1.

Restart Control (Time Delay Safety Control)

• When the thermo-off temperature (temperature which compressor stops to operate) is reached during:-

− Cooling/Heating operation - the compressor stops for 3 minutes (minimum) before resume operation.

− Soft Dry operation - the compressor stops for 6 minutes (minimum) before resume operation.

• If the operation is stopped by the remote control, the compressor will not turn on within 3 minutes from the moment operation

stop, although the unit is turn on again within the period.

• This phenomenon is to balance the pressure inside the refrigerant cycle.

8.4.2.

7 Minutes Time Save Control

• The compressor will start automatically if it has stopped for 7 minutes and the intake air temperature falls between the

compressor ON temperature (A) and compressor OFF temperature (B) during the period.

• This phenomenon is to reduce the built up humidity inside a room.

8.4.3.

60 Seconds Forced Operation

• Once the air conditioner is turned on, the compressor will not stop within 60 seconds in a normal operation although the intake

air temperature has reached the thermo-off temperature. However, force stop by pressing the OFF/ON operation button at the

remote control is permitted.

• The reason for the compressor to force operate at minimum 60 seconds is to allow the refrigerant oil run in a full cycle and

return back to the outdoor unit.

8.4.4.

Starting Current Control

• When the compressor, outdoor fan motor and indoor fan motor are simultaneously started, the indoor fan motor will start to

operate at 1.6 second later.

• The reason of the difference is to reduce the starting current flow.

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8.4.5.

Anti-Freezing Control

• If the temperature of the indoor heat exchanger falls below 35.6°F continuously for 4 minutes or more, the compressor turns off.

The fan speed setting remains the same.

• This phenomenon is to protect the indoor heat exchanger from freezing and to prevent higher volume of refrigerant in liquid form

returning to the compressor.

• Compressor will restart again when the indoor heat exchanger temperature rises to 50°F (Recovery).

• Restart control (Time Delay Safety Control) will be applied in this Control if the recovery time is too short.

8.4.6.

Compressor Reverse Rotation Protection Control

• If the compressor is operating continuously for 5 minutes or longer and the temperature difference between intake air and

indoor heat exchanger is 4.5°F or less for continuous 2 minutes, compressor will stop and restart automatically.

• Time Delay Safety Control is activated before the compressor restart.

s T = Intake air temperature - Indoor heat exchanger temperature

• This is to prevent compressor from rotate reversely when there is an instantaneous power failure.

8.4.7.

Anti-Dew Formation Control

• Purpose is to prevent dew formation on indoor unit discharge area.

• When room temperature is constant (±1.8°F) the following condition occur for 30 minutes continuously, anti-dew formation will

activate:

- Indoor intake temperature is more than 75.2°F and less than 86°F.

- Remote Control setting temperature is less than 77°F

- Compressor is on.

- Cooling Operation Mode.

- Indoor fan motor operate at Low fan speed or QLo.

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• Anti-Dew Formation is control by:-

• Increasing Air Flow Volume

1. Lo fan speed.

Lo fan speed is changed to Lo+ after 30 min to prevent dew formation.

2. QLo fan speed.

Dew formation may occur at QLo cool, therefore QLo cool is operated only 1hr 30min (1 hr QLo, 30 min QLo + 80 rpm). After

that, it operates at QLo + 160 rpm (However Quiet LED remains on).

• Narrowing

1. Vertical Airflow Direction

During Anti-Dew condensation prevention, Airflow Direction Auto-control angle from 0° - 32° to 20° - 30° under cooling and

Soft Dry operation mode.

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During Anti-Dew condensation prevention, Airflow Direction Manual Control angle change from 10°, 15°, 20°, 26°, 32° to

22°, 24°, 26°, 28°, 30°.

8.5. Indoor Fan Speed Control

• Indoor Fan Speed can be set using remote control.

8.5.1.

Fan Speed Rotation Chart

Speed

Fan Speed (rpm)

CS-C9DKU

CS-C12DKU

S Hi

1250

1160

920

840

750

710

1310

1280

1080

960

900

850

820

H Lo

C Lo

Lo-

S Lo

SS Lo

Q S Hi

Q Hi

Q Me

QH Lo

Q Lo

1060

820

1180

980

650

800

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8.5.2.

Automatic Fan Speed Control

• When set to Auto Fan Speed, the fan speed is adjusted between maximum and minimum setting as shown in the table.

− Fan speed rotates in the range of Hi and Me.

− Deodorizing Control will be activated.

• Auto Fan Speed during cooling operation:

1. Indoor fan will rotate alternately between off and on as shown in below diagram.

2. At the beginning of each compressor start operation, indoor fan will increase fan speed gradually for deodorizing purpose.

3. For the first time the compressor operate, indoor fan will be switched to Hi fan speed from Lo- after 70 seconds from the

start of compressor. This cause the room temperature to achieve the setting temperature quickly.

4. During compressor stop, indoor fan will operate at Lo for the beginning 20 seconds to prevent higher volume of refrigerant

in liquid form returning to the compressor.

5. After the compressor at turn off condition for 3 minutes, indoor fan will start to operate at Lo- to circulate the air in the room.

This is to obtain the actual reading of the intake air temperature.

6. For the resume of compressor operation, indoor fan will operate at Me fan speed to provide comfort and lesser noise

environment, after 70 seconds from the restart of compressor.

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• Auto Fan Speed during Soft Dry operation:

1. Indoor fan will rotate alternately between off and Lo-.

2. At the beginning of each compressor start operation, indoor fan will increase fan speed gradually for deodorizing purpose.

3. When compressor at turn off condition for 6 minutes, indoor fan will start fan speed at Lo- to circulate the air in the room.

This is to obtain the actual reading of intake air temperature.

8.5.3.

Manual Fan Speed Control

• Manual fan speed adjustment can be carried out by using the Fan Speed selection button at the remote control.

• There are 3 types of fan speed settings: Lo, Me, Hi.

8.6. Outdoor Fan Speed Control

• There is only one speed for outdoor fan motor.

• When the air conditioner is turned on, the compressor and the outdoor fan will operate simultaneously.

• Likewise, both compressor and outdoor fan will stop at the same time if the unit is turned off.

8.7. Vertical Airflow Direction Control

8.7.1.

Auto Control

• When the vertical airflow direction is set to Auto using the

remote control, the louver swings up and down as shown in

the diagram.

• When stop operation using the remote control, the

discharge vent is reset, and stop at the closing position.

• During Cooling operation or Soft Dry operation, indoor fan

motor may stop to rotate at certain periods. At that

condition, the louver will stop swinging and rest at the upper

limit.

8.7.2.

Manual Control

• When the vertical airflow direction is set to Manual using the

remote control, the automatic airflow is released and the

airflow direction louver move up and down in the range

shown in the diagram.

• The louver can be adjusted by pressing the button to the

desired louver position.

• When stop operation using the remote control, the

discharge vent is reset, and stop at the closing position.

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8.8. Horizontal Airflow Direction Control

• The horizontal airflow direction louvers can be adjusted manually by hand.

8.9. Powerful Operation

• The Powerful operation is to achieve the setting temperature quickly.

• When Powerful operation is set, the setting temperature will be automatically decreased 5.4°F internally against the present

setting temperature (Lower temperature limit: 60.8°F).

• This operation automatically will be running under SHi Fan Speed (Cooling), Lo- Fan Speed (Soft Dry).

• Vertical Airflow Direction:-

- In “Manual” setting, the vane will automatically shift down 10° lower than previous.

- In “Auto” setting, the vane will automatically swing up and down. However the lower limit will be shifted 10° downward.

• Powerful Mode will operate for 15 minutes only and operation will shift back to previous setting mode.

• Powerful operation stops when:-

- Powerful mode button is pressed again.

- Stopped by OFF/ON operation button.

- Timer OFF activates.

- Quiet mode button is pressed.

- Operation mode button is changed.

- Economy mode button is pressed.

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8.10. Quiet Operation

(For Cooling Operation or cooling region of Soft Dry Operation)

• The Quiet operation is to provide quiet/cooling operation condition compare to normal operation.

• Once the Quiet Mode is set at the remote control, the Quiet Mode LED illuminated. The sound level will reduce around 2 dB

for Lo fan speed or 3 dB for Hi/Me fan speed against the present operation sound level.

• Dew formation become severe at Quiet Lo cool, therefore Quiet Lo cool is operated only 1hr 30 min (1hr QLo, 30 min QLo +

80 rpm). After that, it goes back to Lo cool (However Quiet LED remains on).

• Manual Airflow Direction:-

− RPM control during Lo cool

− RPM control during Hi cool

• Auto Airflow Direction:-

• Quiet operation stops when:-

− Quiet button is pressed again.

− Stopped by OFF/ON operation button.

− Timer OFF activates.

− Powerful button is pressed.

− Economy button is pressed.

− Operation mode button is changed.

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8.11. Timer Control

• There are 2 types of timer, ON and OFF timer.

• Both ON and OFF timer can be set by pressing ON or OFF button respectively.

• By pressing ON/OFF operation button, ON Timer or OFF Timer will not be cancelled.

• To cancel the previous timer setting, press CANCEL button.

• To activate the previous timer setting, press SET button once again.

• If main power supply is switched off, the timer setting will be cancelled.

8.11.1. ON Timer

• When ON Timer is set by using the remote control, the unit will start to operate slightly before the set time, so that the room will

reach nearly to the set temperature by the set time.

• For Cooling and Soft Dry operation, the operation will start 15 minutes before the set time.

• For Automatic operation, the indoor fan will operate at SLo speed for 25 seconds, 30 minutes before the set time to detect the

intake air temperature to determine the operation mode. The operation indication lamp will blink at this time.

8.11.2. OFF Timer

• When OFF Timer is set by using the remote control, the unit will stop operate according to the desired setting.

8.12. Random Auto Restart Control

• If there is a power failure during operation, the air conditioner will automatically restart after 3 to 4 minutes when the power is

resumed.

• It will start with previous operation mode and airflow direction.

• If there are more than one air conditioner unit in operation and power failure occur, restart time for each unit to operate will be

decided randomly using 4 parameters:- intake air temperature, setting temperature, fan speed and air swing louver position.

• This Random Auto Restart Control is not available when Timer is set.

• This control can be omitted by open the circuit of JX2. (Refer Circuit Diagram)(Indoor PCB)

8.13. Remote Control Signal Receiving Sound

• Long beep sound will be heard when:-

− Stopping the air conditioner using ON/OFF switch.

− Stopping the Quiet Mode.

− Stopping the Powerful Mode.

• Short beep sound will be heard for others setting.

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8.14. Economy Mode Operation

• Purpose of this operation is to save or reduced electrical power consumption of the room air conditioner.

However consumer is advised to use Economy Mode operation after the room temperature reaches the desired temperature.

1. Cooling and Soft Dry Mode

• When the Economy Mode is set, the set temperature will be automatically increased 0.9°F against the present setting

temperature. This operation automatically will be running under SLo Fan speed.

• Vertical Airflow Direction:-

In “Manual” or “Auto” setting, the vane will automatically change to Auto Air Swing.

2. Economy Mode will stop if:

• Economy mode button is pressed again.

• Stopped by ON / OFF switch.

• Timer-off activates.

• Powerful mode button is pressed.

• Fan Speed control button is pressed.

• Operating mode is changed.

• Air Swing condition is changed.

• Quiet button is pressed ON.

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9 Operating Instructions

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10 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

13.3 lbf.ft

31.0 lbf.ft

40.6 lbf.ft

3. Electric drill, hole core drill 7. Reamer

(ø2 3/4”)

4. Hexagonal wrench (5/32”) 8. Knife

11. Thermometer

12. Megameter

15. Vacuum pump

16. Gauge manifold

10.1. Safety Precautions

• Read the following “SAFETY PRECAUTIONS” carefully before installation.

• Electrical work must be installed by a licensed electrician.

• 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 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 white background denotes an item that is PROHIBITED.

• 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 UL listed or CSA approved AWG16 wire (or heavier wire) and connect tightly for indoor/outdoor connection. Connect tightly and

clamp the wire 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.

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1. The equipment must be earthed and installed with earth leakage current 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 of the room air conditioner to the mains.

Power supply point should be in easily accessible place for the power disconnection in case of emergency.

Power supply connection to a circuit breaker for the permanent connection. Use an approved 15A (CU-C9DK) and 25A (CU-C12DK) fuse

or circuit breaker for the permanent connection.

It must be a double pole switch with a minimum 1/8” 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.

Twp people may be required to carry out installation.

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

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10.2. Attached accessories

10.4. Indoor/Outdoor Unit

Installation Diagram

Applicable piping kit

CZ-3F5, 7AEN (C9DK)

CZ-4F5,7, 10AN (C12DK)

10.3. 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.

• A 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 7’6”.

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.

• This illustration is for explanation purposes only.

The indoor unit will actually face a different way.

• There should not be any animal or plant which could be

affected by hot air discharged.

• 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 rated length, additional

refrigerant should be added as shown in the table.

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10.5. Indoor unit

10.5.1. SELECT THE BEST LOCATION

(Refer to “Select the best location”

section)

10.5.3. TO DRILL A HOLE IN THE WALL

AND INSTALL A SLEEVE OF

PIPING

1. Insert the piping sleeve to the hole.

10.5.2. HOW TO FIX INSTALLATION

PLATE

2. Fix the bushing to the sleeve.

3. Cut the sleeve until it extrudes about 19/32” 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.

The wall must be able to withstand the weight of the unit.

The centre of installation plate should be at more than 1723/32”

at right and left of the wall.

From installation plate left edge to unit’s left side is 229/32”.

The distance from installation plate edge to ceiling should more

than 25/8”.

From installation plate right edge to unit’s right is 345/64”.

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

about 19/32” from this line.

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

about 1198/256” from this line.

: For left side piping, piping connecting cable should be

about 31127/256” 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 ø23/4” hole-core drill.

• Line according to left and right side of the installation

plate. The meeting point of the extended line is the

centre of the hole. Another method is by putting

measuring tape at position as shown in the diagram

above. The hole centre is obtained by measuring the

distance namely 529/32” and 429/32” for left and right

hole respectively.

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

hole should be slightly slanted to the outdoor side.

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10.5.4. INDOOR UNIT INSTALLATION

1. For the right rear piping

2. For the embedded piping

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

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2. Unscrew the conduit cover & fix the conduit connector to

conduit cover with lock nut, then secure it against chassis.

3. Connecting wire between indoor unit and outdoor unit

should bw UL listed or CSA approved 4 x AWG16 wire.

• 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.

• Secure the cable onto the control board with the holder

(clamper).

10.5.5. INDOOR UNIT ELECTRICAL

WIRING

1. Remove the control board metal cover.

INSTALLATION OF AIR PURIFYING FILTER

1. Open the front panel.

2. Remove the air filters.

3. Put air purifying filter (right) into place as shown in

illustration at below.

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Everytime Auto Switch is pressed (within 20 sec. interval),

remote controller receiving sound status will be reversed

between ON and OFF.

Long “beep” sound indicates that remote controller

receiving sound is OFF.

Short “beep” sound indicates that remote controller

receiving sound is ON.

HOW TO TAKE OUT FRONT GRILLE

Please follow the steps below to take out front grille if

necessary such as when servicing.

1. Open the intake grille and remove the screw at the front of

the front grille.

2. Set the vertical airflow direction louver to the horizontal

position.

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

illustration at right, and then remove the 2 mounting screws.

10.6. Outdoor unit

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

remove the front grille.

10.6.1. SELECT THE BEST LOCATION

(Refer to “Select the best location”

section)

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.

10.6.2. INSTALL THE OUTDOOR UNIT

• After selecting the best location, start installation according

to Indoor/Outdoor Unit Installation Diagram.

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

by bolt nut. (ø13/32”).

2. When installing at roof, please take into consideration

strong winds and earthquakes. Please fasten the

installation stand firmly with bolt or nails.

AUTO SWITCH OPERATION

The below operations will be performed by pressing the

“AUTO” switch.

1. AUTO OPERATION MODE

The Auto operation will be activated immediately once the

Auto Switch is pressed.

2. 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. A “pep” sound

will occur at the fifth sec., in order to identify the starting of

Test Run operation

3. REMOTE CONTROLLER RECEIVING SOUND ON/OFF

The ON/OFF of Remote Controller receiving sound can be

change over by the following steps:

a) Release the Auto Switch after Test Run operation is

activated.

b) Then, within 20 sec. after (a), press Auto Switch for more

than 5 sec..A “beep” “beep” sound will occur at the fifth

sec., then release the Auto Switch.

c) Within 20 sec. after (b), press Auto Switch again.

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10.6.3. CONNECTING THE PIPING

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.

MODEL

Piping size (Torque)

Gas

Liquid

CS-C9DK

CS-C12DK

3/8” (31.0 lbf.ft)

1/2” (40.6 lbf.ft)

1/4” (13.3 lbf.ft)

Connecting The Piping To Outdoor Unit

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.

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.

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

copper pipes.

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10.6.4. EVACUATION OF THE EQUIPMENT

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

following procedure.

1. Connect a charging hose with a push pin to the Low 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 from O PSI to -14.5 PSI.

Then evacuate the air approximately ten minutes.

4. Close the Low side valve of the charging set and then turn off the vacuum pump. Make sure that the needle in the gauge does

not move after approximately five minutes.

Note: BE SURE TO FOLLOW THIS PROCEDURE IN ORDER 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 4.05 Pf with a torque wrench.

7. Remove the valve caps of both of the 2-way valve and 3-way valve. Position both of the valves to “OPEN” using a hexagonal

wrench (5/32”).

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 PSI to -14.5 PSI, in step 3 above take the following measure:

• If the leak stops when the piping connections are tightened further, continue working from 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.

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4. Fix the conduit connectors to the conduit holes with lock-

nuts, then secure them against the side panel.

10.6.5. OUTDOOR UNIT ELECTRICAL

WIRING

5. Connecting wire between indoor unit and outdoor unit

should be UL listed or CSA approved 4 × AWG16 wire.

6. Secure the wire onto the control board with the holder

(clamper).

7. Wire connection to the power supply (115V 60 Hz) through

circuit breaker.

• Connect the UL listed or CSA approved wires (AWG14)

to the terminal board, and connect the other end of the

wires to circuit breaker.

Note: Secure the wires onto the control board

with the holder (clamper).

1. Remove Top Panel.

8. After completing wiring connection, reattach the control

board cover and the top panel to the original position with

the screws.

2. Remove Control Board Cover (Metal & Resin).

3. Remove Plugs.

10.6.6. 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.

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 thickness1/4” or above.

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.

EVALUATION OF THE PERFORMANCE

• Operate the unit at cooling operation mode for fifteen

minutes or more.

• Measure the temperature of the intake and discharge air.

• Ensure the difference between the intake temperature and

the discharge is more than 14.4°F.

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CHECK ITEMS

Is there any gas leakage at flare nut connections?

Has the heat insulation been carried out at flare nut

connection?

Is the connecting wiring being fixed to terminal board firmly?

Is the connecting wiring being clamped firmly?

Is the drainage OK?

(Refer to “Check the drainage” section)

Is the earth wire connection properly done?

Is the indoor unit properly hooked to the installation plate?

Is the power supply voltage compliant 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?

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11 2-way, 3-way Valve

2-way Valve (Liquid Side)

3-way Valve (Gas Side)

Works

Shaft Position

Service Port

Shipping

(With valve cap)

(With cap)

Evacuation

(Installation and

Re-installation)

(Counter-Clockwise)

(Clockwise)

Open

(Push-pin)

Operation

Open

(With valve cap)

(With cap)

Pumping down

(Transferring)

(Clockwise)

Open

(Counter-Clockwise)

Open

(Connected manifold

gauge)

Evacuation

(Servicing)

Open

With vacuum pump

Gas charging

(Servicing)

Open

(With charging cylinder)

Pressure check

(Servicing)

Open

(Connected manifold

gauge)

Open

Gas releasing

(Servicing)

Open

(Connected manifold

gauge)

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11.1. Evacuation of Installation

WHEN INSTALLING AN AIR CONDITIONER, BE SURE TO

EVACUATE THE AIR INSIDE THE INDOOR UNIT AND PIPES

in the following procedure.

If air remain in the indoor unit and refrigeration pipes, it will

affect the compressor, reduce to cooling capacity, and could

lead to a malfunction.

Procedure:

1. Connect a charging hose with a push pin to the Low

side of a charging set and the service port of a 3-way

valve.

6. Tighten the service port cap at a torque of 4.05 Ibf with

a torque wrench.

7. Remove the valve caps of the 2-way valve and the 3-

way valve. Position both of the valves to “open” using

a hexagonal wrench (6/32 inch).

• Be sure to connect the end of the charging hose with the

push pin to the service port.

2. Connect the centre hose of the charging set to a

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

vacuum pump.

• Be sure to check for gas leakage.

3. Turn on the power switch of the vacuum pump and

make sure that the needle in the gauge moves from 0

PSI (0 cmHg) to -14.5 PSI (-76 cmHg). Then evacuate the

air for approximately ten minutes.

Caution

If gauge needle does not move from 0 cmHg to -76

cmHg in step (3) above, take the following measures:

4. Close the Low side valve of the charging set and turn

off the vacuum pump. Make sure that the needle in the

gauge does not move after approximately five minutes.

If the leaks stop when the piping connections are

tightened further, continue working from step (3).

If the leaks do not stop when the connections are

retightened, repair the location of the leak.

BE SURE TO TAKE THIS PROCEDURE IN ORDER TO

AVOID GAS LEAKAGE.

5. Disconnect the charging hose from the vacuum pump

and from the service port of the 3-way valve.

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11.2. Pumping down

Procedure:

1. Confirm that both the 2-way and 3-way valves are set to

the opened position.

6. Operate the air conditioner at the cooling cycle and

stop it when the gauge indicates 0 PSI (0 kg/cm²G).

• Remove the valve stem caps and confirm that the valve

stems are in the opened position.

If the unit cannot be operated at the cooling condition

(weather is rather cool), short the Pumping Down pins

on the Main Control P.C.B.

• Be sure to use a hexagonal wrench to operate the valve

stems.

(Simply press the pumping down button if it is

equipped.)

2. Operate the unit for 10 to 15 minutes.

So that the unit can be operated.

3. Stop operation and wait for 3 minutes, then connect the

charge set to the service port of the 3-way valve.

7. Immediately set the 3-way valve to the closed position.

• Connect the charge hose with the push pin to the Gas

service port.

• Do this quickly so that the gauge ends up indicating 14.5

PSI (1 kg/cm²G) to 43.5 PSI (3 kg/cm²G).

4. Air purging of the charge hose.

8. Use refrigerant reclaiming equipment to collect

refrigerant from indoor unit and pipes.

• Open the low-pressure valve on the charge set slightly

to purge air from the charge hose.

9. Disconnect the charge set, and mount the 2-way and 3-

way valve’s stem caps and the service port caps.

5. Set the 2-way valve to the closed position.

• Use a torque wrench to tighten the service port cap to a

torque of 4.05 Ibf.

• Be sure to check for gas leakage.

10. Disconnect pipes from indoor unit and outdoor unit.

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11.3. Evacuation of Re-installation

WHEN REINSTALLING AN AIR CONDITIONER, BE SURE TO

EVACUATE THE AIR INSIDE THE INDOOR UNIT AND PIPES

in the following procedure.

If air remain in the indoor unit and refrigeration pipes, it will

affect the compressor, reduce to cooling capacity, and could

lead to a malfunction.

Procedure:

1. Connect a charging hose with a push pin to the Low

side of a charging set and the service port of the 3-way

valve.

7. Tighten the service port cap at a torque of 18 N.m with

a torque wrench.

8. Remove the valve caps of the 2-way valve and the 3-

way valve. Position both of the valves to “open” using

a hexagonal wrench (6/32 inch).

• Be sure to connect the end of the charging hose with the

push pin to the service port.

2. Connect the centre hose of the charging set to a

9. Mount the valve caps onto the 2-way and 3-way valves.

vacuum pump.

• BE SURE TO USE REFRIGERANT RECLAIMING

3. Turn on the power switch of the vacuum pump and

make sure that the needle in the gauge moves from 0

PSI (0 cmHg) to -14.5 PSI (-76 cmHg). Then evacuate the

air for approximately ten minutes.

EQUIPMENT

REFRIGERANT.

WHILE

DISCHARGING

THE

• Purge the air from charge set’s centre hose.

• Be sure to check for gas leakage.

4. Close the Low side valve of the charging set and turn

off the vacuum pump. Make sure that the needle in the

gauge does not move after approximately five minutes.

Caution

If gauge needle does not move from 0 PSI (0 cmHg) to

-14.5 PSI (-76 cmHg) in step (3) above, take the

following measures:

BE SURE TO TAKE THIS PROCEDURE IN ORDER TO

AVOID GAS LEAKAGE.

If the leaks stop when the piping connections are

tightened further, continue working from step 3.

5. Disconnect the charging hose from the vacuum pump.

6. Charge the pipes and indoor unit with gas refrigerant

from 3-way valve service port, and then discharge the

refrigerant until low side (gas side) gauge needle

indicates 43.5 PSI (3 kg/cm²).

If the leaks do not stop when the connections are

retightened, repair the location of the leak.

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11.4. Balance refrigerant of the 2-way, 3-way valves

(Lack of refrigerant in the refrigeration cycle)

Procedure:

1. Confirm that both the 2-way and 3-way valves are set to

the open position.

2. Connect the charge set to the 3-way valve’s service

port.

• Leave the valve on the charge set closed.

• Connect the charge hose with the push-pin to the

service port.

3. Connect the charge set’s centre hose to refrigerant

reclaiming equipment.

• Purge the air from charge hose.

4. Open the valve (Low side) on the charge set and

discharge the refrigerant until the gauge indicates 7.25

PSI (0.5 kg/cm²G) to 14.5 PSI (1 kg/cm²G).

• If there is no air in the refrigeration cycle (the pressure

when the air conditioner is not running is higher than 0.1

PSI (1 kg/cm²G), discharge the refrigerant until the

gauge indicates 7.25 PSI (0.5 km/cm²G) to 14.5 PSI (1

kg/cm²G). If this is the case, it will not be necessary to

apply a evacuation.

• Discharge the refrigerant gradually; if it is discharged

too suddenly, the refrigeration oil will also be

discharged.

5. Turn on refrigerant reclaiming equipment.

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11.5. Evacuation

(No refrigerant in the refrigeration cycle)

Procedure:

1. Connect the vacuum pump to the charge set’s centre

hose.

2. Evacuation for approximately one hour.

• Confirm that the gauge needle has moved toward -14.5

PSI (-76 cmHg) [vacuum of 4 mmHg or less.]

3. Close the valve (Low side) on the charge set, turn off

the vacuum pump, and confirm that the gauge needle

does not move (approximately 5 minutes after turning

off the vacuum pump).

4. Disconnect the charge hose from the vacuum pump.

• Vacuum pump oil

If the vacuum pump oil becomes dirty or depleted,

replenish as needed.

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11.6. Gas charging

(After Evacuation)

Procedure:

This is different from previous procedures. Because you are

charging with liquid refrigerant from the gas side, absolutely do

no attempt to charge with large amount of liquid refrigerant

while operating the air conditioner.

1. Connect the charge hose to the charging cylinder.

• Connect the charge hose which you disconnected from

the vacuum pump to the valve at the bottom of the

cylinder.

2. Purge the air from the charge hose.

4. Immediately disconnect the charge hose from the 3-

way valve’s service port.

• Open the valve at the bottom of the cylinder and press

the check valve on the charge set to purge the air (be

careful of the liquid refrigerant).

• Stopping partway will allow the refrigerant to be

discharged.

3. Open the valve (Low side) on the charge set and charge

the system with liquid refrigerant.

• If the system has been charged with liquid refrigerant

while operating the air conditioner, turn off the air

conditioner before disconnecting the hose.

• If the system cannot be charged with the specified

amount of refrigerant, it can be charged with a little at a

time (approximately 0.33 Ib each time) while operating

the air conditioner in the cooling cycle; however, one

time is not sufficient, wait approximately 1 minute and

then repeat the procedure. (pumping down-pin)

5. Mount the valve stem caps and the service port cap.

• Use torque wrench to tighten the service port cap to a

torque of 4.05 Ibf.

• Be sure to check for gas leakage.

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12 Servicing Information

12.1. Distinction of Lead Free (PbF) Printed Circuit Board

• Printed circuit boards (manufactured) using lead free solder will have a PbF stamp on the Printed Circuit 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 splash when heated too high (about 1100°F/600°C).

• If you must use Pb solder, please completely remove all of the Pb free solder on the pin or solder area before applying Pb

solder. If this is not pratical, be sure to heat the Pb free solder until it melts, before applying Pb solder.

12.2. Indoor Electronic Controller Removal Procedures

• Electronic controller and Display Complete unit can be seen

by following the below removal procedures.

Fig. 1

Fig. 3

− Remove the 2 caps and 2 screws at the bottom of the

Front Grille.(Fig.1)

− Release the hooks on top and on the left side of Control

Board Front Cover.(Fig.3)

− Then remove the Control Board Front Cover.(Fig.3)

− Remove the earth wire.(Fig.3)

− Release the screw on the left side of the Control Board

Front Cover Complete.(Fig.3)

− Then remove the Control Board Front Cover

Complete.(Fig.3)

Fig. 2

− Remove the Front Grille Complete. (Fig.2)

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Fig. 6

− Press the hook to the right then take out the PCB (Fig.6)

− Remove Ry-Pwr connector (black and brown) from the

terminal board. (Fig.6)

Fig. 4

− Remove AC-Wht connector from the PCB. (Fig.6)

− Remove the indicator complete screw, and then remove

the Indicator Complete.(Fig.4)

Fig. 5

− To remove the electronic controller.

− Remove the particular piece (Fig.5).

− Release CN-FM connector (Fig.)

− Release CN-FB connector (Fig.5)

− Release CN-TH connector (Fig.5)

− Release CN-STM1 connector (Fig.5)

− Release CN-DISP connector (Fig.5)

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12.3. Indoor Fan Motor and Cross Flow Fan Removal Procedures

• Remove Control Board cover

Fig. 9

Fig. 7

− Remove the cross flow fan bushing from the chassis.

(Fig.9)

− Remove the screw on the left side of the unit. (Fig.7)

− Pull the hook to the left and lift up the evaporator. (Fig.

− Loosen the fan boss screw at the cross flow fan. (Fig.9)

− Pull down the Discharge Grille Complete. (Fig.7)

Fig. 10

− Push up the evaporator and remove cross flow fan by

Fig. 8

pulling both cross flow fan and fan motor. (Fig.10)

− Remove indoor pipe sensor and air intake sensor from

the evaporator. (Fig.8)

− Remove 2 screws on the right side of the control board.

(Fig.8)

− Press down the hook on the left side of control board.

(Fig.8)

− Then pull out the Control Board Complete from the unit.

(Fig.8)

CS-C9DKU CU-C9DKU / CS-C12DKU CU-C12DKU

12.4. Auto OFF/ON Button

• The “Auto OFF/ON Button” (behind the front grille) is used to operate the air conditioner if remote control is misplaced or

mulfunctioning.

• Forced cooling operation is possible by pressing the “Auto OFF/ON Button” for more than 5s where “beep” sound is heard then

release the button.

• User able to select remote control transmission code and toggle remote control signal receiving sound under various setting

mode.

• To enter various setting mode:

− Press the “Auto OFF/ON Button” continuously for 5s (“beep” sound is heard) and release.

− Within 20s, press the “Auto OFF/ON Button” continuously for 5s again (2 “beep” sound is heard) and release.

− Various setting mode has limit up to 20s. Then return to normal operation.

12.4.1. Toggle Remote Control Signal Receiving Sound

• Under various setting mode, press the “Auto OFF/ON Button” to toggle the remote control sound.

− Short “beep”: Turn ON remote control signal receiving sound.

− Long “beep”: Turn OFF remote control signal receiving sound.

• After “Auto OFF/ON Button” is pressed, the 20s counter for various setting mode is restarted.

12.4.2. Remote Control Transmission Code

• There are 4 types of remote control transmission code could be selected and stored in EEPROM of indoor unit. The indoor unit

will only operate when received signal with same transmission code from remote control. This could prevent signal interference

when there are 2 or more indoor unit installed nearby together.

• To change remote control transmission code, short or open jumpers at the remote control printed circuit board.

• Under various setting mode, after select the transmission code combination of remote control, press any button of remote

control to transmit a signal to indoor unit. The transmission code will be stored in EEPROM.

• After signal is received, the various setting mode is cancelled and return to normal operation.

CS-C9DKU CU-C9DKU / CS-C12DKU CU-C12DKU

12.5. Remote Control Reset

• When the batteries are inserted for the first time or the

batteries are replaced, you may notice the indications at

remote control’s display screen blink continuously and not

functionable. If this condition happens, try to reset the

remote control by pushing the reset terminal with a pointing

device.

• You may also do the reset to erase the setting at remote

control and restore back the default setting.

CS-C9DKU CU-C9DKU / CS-C12DKU CU-C12DKU

13 Troubleshooting Guide

13.1. Refrigeration cycle system

In order to diagnose malfunctions, make sure that there is no

electrical problem before inspecting the refrigeration cycle.

Such problems include insufficient insulation, problem with the

power source, malfunction of compressor or fan motor.

The normal outlet air temperature and pressure of the

refrigeration cycle depend on various conditions, the standard

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

CS-C9DKU CU-C9DKU / CS-C12DKU CU-C12DKU

13.2. Relationship between the condition of the air conditioner and

pressure and electric current

Cooling Mode

Condition of the air

conditioner

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

13.3. Diagnosis methods of a malfunction of a compressor

Nature of fault

Symptom

• Electric current during operation becomes approximately 20% lower than the normal value.

• The discharge tube of the compressor becomes abnormally hot (normally 154 to 194°F).

• The difference between high pressure and low pressure becomes almost zero.

Insufficient compressing of a compressor

• Electric current reaches a high level abnormally, and the value exceeds the limit of an

ammeter. In some cases, a breaker turns off.

Locked compressor

• The compressor has a humming sound.

CS-C9DKU CU-C9DKU / CS-C12DKU CU-C12DKU

14 Technical Data

14.1. Thermostat characteristics

CS-C9DKU CU-C9DKU / CS-C12DKU CU-C12DKU

14.2. Operation characteristics

14.2.1. CS-C9DK CU-C9DK

CS-C9DKU CU-C9DKU / CS-C12DKU CU-C12DKU

14.2.2. CS-C12DK CU-C12DK

CS-C9DKU CU-C9DKU / CS-C12DKU CU-C12DKU

15 Exploded View (Indoor 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-C9DKU CU-C9DKU / CS-C12DKU CU-C12DKU

16 Replacement Parts List (Indoor Unit)

<Model: CS-C9DKU / CS-C12DKU >

REF. NO.

PART NAME & DESCRIPTION

CHASSY COMPLETE

QTY.

CS-C9DKU

CWD50C1401

CS-C12DKU

REMARKS

←

FAN MOTOR, AC15W SINGLE

CROSS FLOW FAN COMPLETE

BEARING ASS’Y

CWA921143

CWH02C1031

CWH64K007

CWH4580304

CWB30C1745

CWT25026 (1/4”)

CWT25005 (3/8”)

CWH32143

SCREW - CROSS FLOW FAN

EVAPORATOR

←

CWB30C1746

FLARE NUT

←

FLARE NUT

CWT25007 (1/2”)

INTAKE AIR SENSOR HOLDER

DISCHARGE GRILLE COMPLETE

VERTICAL VANE

←

CWE20C2342

CWE241150

CWE261066

CWE261070

CWA98260

CONNECTING BAR

AIR SWING MOTOR DC SINGLE 12V 300OHM

LEAD WIRE - AIR SWING MOTOR

CAP - DRAIN TRAY

CWA67C3977

CWH521096

CWE241173

CWD932454

CWH102259B

CWA28C2226

CWA743706

CWA50C2135

CWH131207

CWE39C1127

CWD932429

CWD932430

CWH13C1120

CWH131245

CWA75C2598

CWE11C3135

CWE22C1154

CWE141073

CWD001144

XTN4+16C

HORIZONTAL VANE

BACK COVER CHASSIS

CONTROL BOARD CASING

TERMINAL BOARD COMPLETE

ELECTRONIC CONTROLLER - MAIN

SENSOR COMPLETE

CWA743707

←

CONTROL BOARD FRONT COVER

INDICATOR COMPLETE

INDICATOR HOLDER

CONTROL BOARD FRONT COVER

CONTROL BOARD FRONT COVER CO.

REMOTE CONTROL COMPLETE

FRONT GRILLE COMPLETE

INTAKE GRILLE COMPLETE

GRILLE DOOR

AIR FILTER

SCREW - FRONT GRILLE

CAP - FRONT GRILLE

DRAIN HOSE

CWH521109

CWH851063

CWD00C1141

CWH361067

CWH82C067

CWH621046

SUPER ALLERU BUSTER FILTER

INSTALLATION PLATE

BAG COMPLETE - INSTALLATION SCREW

FULCRUM

(Note)

• All parts are supplied from PHAAM, Malaysia (Vendor Code: 061).

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

CS-C9DKU CU-C9DKU / CS-C12DKU CU-C12DKU

17 Exploded View (Outdoor Unit)

CU-C9DK

CU-C12DK

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-C9DKU CU-C9DKU / CS-C12DKU CU-C12DKU

18 Replacement Parts List (Outdoor Unit)

<Model: CU-C9DKU / CU-C12DKU>

REF. NO.

PART NAME & DESCRIPTION

CHASSY ASS’Y

QTY.

CU-C9DKU

CWD50K2055A

CU-C12DKU

REMARKS

←

SOUND PROOF MATERIAL

FAN MOTOR BRACKET

CWG302125

CWD541030

CWH551059

CWA951244

CWH55406

←

SCREW - FAN MOTOR BRACKET

FAN MOTOR, AC31W SINGLE

SCREW - FAN MOTOR MOUNT

PROPELLER FAN ASS’Y

NUT - PROPELLER FAN

COMPRESSOR (60HZ, 115V)

ANTI - VIBRATION BUSHING

NUT - COMPRESSOR MOUNT

CONDENSER

CWH03K1006

CWH56053

2R13S126A6AJ

CWH50077

2P19S126C1A

←

CWH56000

CWB32C1291

CWB15K1150

CWB11025

CWB32C1267

CAPILLARY TUBE ASS’Y

STRAINER

CWB15K1151

HOLDER COUPLING

CWH351015A

CWB021147

CWB011147

CWA67C4718

CWH7041200

CWH171011

CWH7080300

CWH151022A

CWH102186

CWA28K1123

K6A1ALA00001

←

2-WAY VALVE (LIQUID)

3-WAY VALVE (GAS)

CWB011148

OVERLOAD PROTECTOR

HOLDER - O.L.P.

CWA67C4719

←

TERMINAL COVER

NUT - TERMINAL COVER

SOUND PROOF BOARD

CWH151023A

CONTROL BOARD CASING

TERMINAL BOARD ASS’Y

ELECTRO MAGNETIC SWITCH

CAPACITOR - COMPRESSOR

←

XS371356FP-C

XS371506FP-B

(35µF, 370VAC)

(50µF, 370VAC)

HOLDER CAPACITOR

CWH30057

CWH30060

CAPACITOR - FAN MOTOR (8.0µF, 230V)

CABINET SIDE PLATE (L)

CABINET SIDE PLATE (R)

CABINET FRONT PLATE

WIRE NET COMPLETE

JS231805SPQH

CWE041044A

CWE041043A

CWE06K1036

CWD04C1010

CWE031018A

CWH131088

CWH13C1065

CWE161010

CWF564722

CWF612765

←

CWE041073A

←

CWD04C1012

CABINET TOP PLATE

←

CONTROL BOARD COVER

CONTROL BOARD COVER COMP

HANDLE

OPERATION INSTRUCTIONS

INSTALLATION INSTRUCTIONS

(Note)

• All parts are supplied from PHAAM, Malaysia (Vendor Code: 061).

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

CS-C9DKU CU-C9DKU / CS-C12DKU CU-C12DKU

19 Electronic Circuit Diagram

19.1. Indoor Unit

SCHEMATIC DIAGRAM 1/4

ELECTRONIC CONTROL UNIT

R55

Q01

Auto

C143XKTX

BZ01

SW01

R07

10k

R11

C01

0.01

R12

R88

5.1k

C02

0.01

R78

10k

CN-SONIC

R68

100

DISPLAY COMPLETE

IC401

C24 0.01

C25 0.01

R13

R14

220

R401 47

C26 0.01

C401

R15

220

6.3V

CN-DISP

TIMER/AIR SW(ORG)

D404

D402

POWER(GRN)

C29

0.1

R17

220

POWERFUL(ORG)

QUIET(ORG)

ECONOMY(GRN)

D403

D405

D406

R27 220

R73

3.3k

C28

0.01

C27

0.01

C35

0.01

CN-DISP

Q09

R31

R56

R58

10k

C22

0.01

CN-HA

R59 1k

JP5

C23

0.01

R60

10k

CS-C9DKU CU-C9DKU / CS-C12DKU CU-C12DKU

SCHEMATIC DIAGRAM 2/4

3XKTX

C38

1000p

R10

10k

R18

D12

R19

R20

D11

D10

R21

R22

R23

R24

R25

D09

D08

D07

D06

D05

P71

P50

P51

TOD

RY-PWR DRIVE SIGNAL

STEPPING

MOTOR

DRIVE

AUTO OPERATION

TEST RUN

P03

REMOTE CONTROL

SOUND

SIGNAL

P52

P53

P54

P55

INTP2

BUZZER

POWER CLOCK INPUT

INTP1

INTP0

DISPLAY

REMOTE-CONTROL

COMMAND INPUT

Vss1

P56

P57

IC01

R06 24k

OSC

Vss0

JP2

IC(VPP) 39

XT1 38

10 VDD0

R75

C39

P30

R76

12 P31

13 P32

XT2 37

R74

R77

RESET

POWER

INTAKE AIR TEMP

PIPE TEMP

AVDD

P33

AVref

TIMER SHORTEN

AUTO RESTART

GROU ND

P34

AN10

P35

RY-PWR

R09

10k

JX2

R05

1/2W

GND Vcc

C05

0.1

16V

R04

1/2W

R/B

IC02

C3EBDG000021

IC05

IC06

B1HBGGF00013

C08

0.1

16V

R33

15k

C04

0.1

16V

R30

20k

(PH)

(RED)

CN-TH

CN-STM1

(ZH5)

PIPE TEMP. SENSOR

(20k 3950)

AIR TEMP. SENSOR

(15k 3950)

VERTICAL

CS-C9DKU CU-C9DKU / CS-C12DKU CU-C12DKU

SCHEMATIC DIAGRAM 3/4

R 6 6

R 4 8

IC04

IC03

T01

REGULATOR

DB01

12V

5V O

C17

3300

35V

C14

470

25V

C11

100

16V

D16

D15

R03

1.3k

R57 12k

R47 12k

Q02

C143XKTX

C07

0.1

16V

RY-PWR

AC-WHT

R29

1.6k

4.7k

FUSE

T 2A L 250V

10k

C03

0.047

TEMPERATURE

FUSE

ZNR01

SSR01

Q03

C143XKTX

4.7k

L01

125

OUTDOOR

10k

R41

C16 R44

0.01 1k

R32

150k

X01

C19

0.047

4.096 MHz

(47pF X 2)

CN-FM

C-FM

1.5

FAN MOTOR

R50

100k

JP3

R49 1k

CN-FB

R36

C18

0.1

16V

C12

0.1

16V

Z01

7.5V

R51

10k

JP4

C21

50V

Q06

C2412KTX

C10

0.1

16V

R53

10k

R52

6.2k

C36

Q05

C2412KTX

C37

0.01

R79

10k

R54

6.2k

C15

0.01

R38

R43

CN-ION

JX1

R37

10k

R61

10k

R62

C31

0.01

D01

Q08

TEST

R02

R67

R01

10k

Q07

C32

0.01

R64

6.2k

R63

6.2k

CS-C9DKU CU-C9DKU / CS-C12DKU CU-C12DKU

SCHEMATIC DIAGRAM 4/4

C9DKU/C12DKU

FAN MOTOR

CAPACITOR

POWER

SUPPLY

SOURCE

COMPRESSOR

OUTDOOR

UNIT

CAPACITOR

MAGNETIC RELAY

GRY

OUTDOOR UNIT

TERMINAL

OVERLOAD

PROTECTOR

CS-C9DKU CU-C9DKU / CS-C12DKU CU-C12DKU

How to use electronic circuit diagram

TIMER TABLE

Test Mode

(When test point

Short-circuited)

1 min.

Name

Time

Remarks

Real Timer

1 hr.

10 min.

1 min.

10 sec.

1 sec.

Time Delay Safety Control

Forced Operation

Time Save Control

Anti-Freezing

2 min. 58 sec.

60 sec.

7 min.

0 sec.

4.2 sec.

0 sec.

4 min.

Auto Mode Judgement

Soft Dry

20 sec.

6 min.

0 sec.

OFF

Cooling

36 sec.

60 sec.

4 sec.

7 sec.

2 sec.

18 sec.

4 sec.

36 sec.

30 sec.

0 sec.

10 min.

40 sec.

70 sec.

20 sec.

180 sec.

40 sec.

360 sec.

5 min.

Soft Dry: 10 min. operation

Deodorizing Control

Soft Dry

Comp. Reverse Rotation Detection

Comp. ON 5 min. and above

2 min.

Comp./ Fan Motor Delay Timer

Powerful Mode Operation

Random Auto Restart Control

1.6 sec.

15 min.

0 ~ 62 sec.

0 sec.

15 sec.

0 ~ 6.2 sec.

CS-C9DKU CU-C9DKU / CS-C12DKU CU-C12DKU

19.2. Remote Control

CS-C9DKU CU-C9DKU / CS-C12DKU CU-C12DKU

19.3. Print Pattern

Indoor Unit Printed Circuit Board

CS-C9DKU CU-C9DKU / CS-C12DKU CU-C12DKU

Indicator Printed Circuit Board

[PHAAM] Printed in Malaysia

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