CS-V7DKE CU-V7DKE CS-V9DKE CU-V9DKE CS

Order No. MAC0412062C2

Air Conditioner

CS-V7DKE CU-V7DKE



CONTENTS

Page

6

7

7

4

5

3

4

Page

14

15

16

9

11

13

13

© 2004 Panasonic HA Air-Conditioning (M) Sdn Bhd

(11969-T). All rights reserved. Unauthorized copying and distribution is a violation of law.

CS-V7DKE CU-V7DKE / CS-V9DKE CU-V9DKE / CS-V12DKE CU-V12DKE

8.10. Quiet Operation

8.11. Ionizer Operation

8.12. Timer Control

8.13. Random Auto Restart Control

8.14. Remote Control Signal Receiving Sound

10 Installation Instructions

10.1. Safety Precautions

10.2. Indoor Unit

10.3. Outdoor Unit

11 Installation And Servicing Air Conditioner Using R410A

11.1. Outline

11.2. Tools For Installing/Servicing Refrigerant Piping

11.3. Refrigerant Piping Work

11.4. Installation, Transferring, Servicing

12 Servicing Information 56

12.1. Distinction Of Lead Free (PbF) Printed Circuit Board 56

12.2. Indoor Electronic Controllers Removal Procedures 56

35

35

38

42

45

45

46

50

52

25

25

27

28

28

28

29

22

24

24

25

17

18

18

19

20

20

12.3. Indoor Fan Motor And Cross Flow Fan Removal

Procedures

12.4. Remote Control Reset

12.5. Auto OFF/ON Button

13 Troubleshooting Guide

13.1. Refrigeration Cycle System

13.2. Relationship Between The Condition Of The Air

Conditioner And Pressure And Electric Current

13.3. Diagnosis Methods Of A Malfunction Of A Compressor

61

61

14 Technical Data

14.1. Thermostat Characteristics

14.2. Sensible Capacity Chart

14.3. Operation Characteristics

15 Exploded View (Indoor Unit)

15.1. CS-V7DKE CS-V9DKE CS-V12DKE

16 Replacement Parts List (Indoor Unit)

65

65

66

62

62

62

63

57

58

59

60

60

16.1. CS-V7DKE CS-V9DKE CS-V12DKE

17 Exploded View (Outdoor Unit)

17.1. CU-V7DKE

17.2. CU-V9DKE CU-V12DKE

18 Replacement Parts List (Outdoor Unit)

18.1. CU-V7DKE

18.2. CU-V9DKE CU-V12DKE

19 Electronic Circuit Diagram

19.1. Indoor Unit & Outdoor Unit

19.2. Remote Control

19.3. Print Pattern Indoor Unit Printed Circuit Board

77

78

19.4. Print Pattern Indicator & Receiver Printed Circuit Board

80

66

67

67

68

69

69

70

71

71

2


1 Features

• High efficiency.

• Compact design.

• Wider range of horizontal discharge air.

• Air Filter with function to reduce dust and smoke.

• Long installation piping up to 15 meter (CS/CU-V12DKE),

10 meter (CS/CU-V7DKE & CS/CU-V9DKE).

• Supersonic Air Purifying System with Super Alleru-Buster.

− Inactive various harmful airbone elements including allergens, viruses and bacteria.

− Generated supersonic waves enhance the ability to collect dust and dirt in the air.

• Operation Improvement

− Quiet mode to provide quiet operation.

− Powerful mode to reach the desired room temperature quickly.

− Ionizer control for generating negative ion in discharge air.

− 24-hour timer setting.

• Serviceability Improvement

− Removable and washable Front Panel.

• Quality Improvement

− Random auto restart after power failure for safety restart operation.

− Gas leakage detection.

− Prevent Compressor reverse cycle.

− OLP to protect Compressor.

− Noise prevention during soft dry operation.

− Blue coated Condenser for high resistance to corrosion.

− Anti-dew formation control (Cooling & Soft Dry).

• Environmental Friendly

− R410A, which does not contain chlorine, is used as its refrigerant, so there is no danger of damage to the ozone layer in Stratosphere.

3


2 Functions

2.1. Remote Control

AUTO

COOL

DRY

FAN

SPEED

AIR

SWING

OFF

TIMER

ON

TIMER

MODE

OFF/ON

POWERFUL FAN SPEED

QUIET

TEMP

AIR SWING

TIMER

ON

1

OFF

2

SET

3

CLOCK RESET

OFF / ON

I

Operation Start / Stop

MODE

Operation Mode Selection

•

AUTO

•

COOL

•

DRY

Automatic Operation

Cooling Operation

Soft Dry Operation

FAN SPEED

Indoor Fan Speed Selection

•

•

•

•

AUTO

Low Fan Speed

Medium Fan Speed

High Fan Speed

Automatic Fan Speed

AIR SWING

Vertical Airflow Direction Control

•

•

AUTO

Automatic Vertical Airflow

Control.

Manual Vertical Airflow

Control (5 stages of adjustment).

POWERFUL

Powerful Operation Start / Stop

QUIET

Quiet Operation Start / Stop

TEMP.

Room Temperature Setting

Cooling, Soft Dry Operation.

• Increase or decrease set temperature

(16°C to 30°C)

•

•

•

Automatic Operation

Operation with 2°C higher than standard temperature.

Operation with standard temperature.

Operation with 2°C lower than standard temperature.

ON-TIMER

OFF-TIMER

Timer Operation Selection

• 24-hour, OFF / ON Real Timer Setting.

▲

▼

Time / Timer Setting

• Hours and minutes setting.

SET

CANCEL

Timer Operation Set / Cancel

• ON Timer and OFF Timer setting and cancellation.

CLOCK

Clock Setting

• Current time setting.

Ionizer Operation Start / Stop

4


2.2. Indoor Unit

AUTO

OFF / ON

Automatic Operation Button

• Press for < 5 second to operate Automatic operation mode. Used when the remote control cannot be used.

• Press for

≥ 5 second to operate Cooling operation mode and compressor force to on

(“beep” sound will heard). Used when test running or servicing.

• Within 20 second of Cooling operation, press continuously for 5 second to enter various setting mode. “beep, beep” sound will be heard.

(Used to toggle remote control signal receiving sound or select remote control transmission code).

Operation Indication Lamps (LED)

•

POWER

(Green) ............. Lights up in operation, blinks in Automatic

Operation judging.

•

TIMER

(Orange) ............ Lights up in Timer

Setting.

•

QUIET

(Orange) ............. Lights up in Quiet

Operation.

•

POWERFUL (Orange) ...... Lights up in Powerful

Operation.

•

ION

(Green) .................. Lights up in Ionizer

Operation.

•

SUPER

ALLERU-BUSTER

(Blue) ... Lights up in operation.

Operation Mode

• Cooling, Soft Dry and Automatic Operation.

Powerful Operation

• Reaches the desired room temperature quickly.

Timer Operation

• Delay OFF/ON Timer control.

Quiet Operation

• To provide quiet operation.

Ionizer Operation

• Generate and discharge negative ion.

Random Auto Restart Control

• Unit will be restarted, when resume from power failure, at previous setting.

Indoor Fan Speed Control

• Manual control fan speed (High, Medium and

Low).

• Automatic fan speed.

Airflow Direction Control

• Vertical airflow control can be adjusted automatically or manually by remote control.

• Horizontal airflow can be manually adjusted by hand.

Anti-Freezing Control

• To prevent indoor heat exchanger from freezing.

Starting Current Control

• To reduce the starting current.

Time Delay Safety Control

• Restarting is inhibited for appro. 3 minutes.

7 Minutes Time Save Control

• To reduce the built up humidity inside the room.

Anti-Dew Formation Control

• Anti-Dew Formation Control for indoor unit discharge area.

5


2.3. Outdoor Unit

Compressor Reverse Rotation

Protection Control

• To protect compressor from reverse rotation when there is a instantaneous power failure.

Overload Protector

• OLP to protect the compressor. Overload

Protector will trip when

– Temperature of compressor increases to 120°C.

– High temperature or high current flows to compressor.

(Refer circuit diagram for OLP characteristic)

60 Secs. Forced Operation Control

• Once the compressor is activated, it does not stop within the first 60 secs.

However, it stops immediately with remote control stop signal.

Outdoor Fan Operation Control

• Temperature Fuse.

6


3 Product Specifications

3.1. CS-V7DKE CU-V7DKE

Cooling Capacity

Moisture Removal

Power Source

Airflow Method

Phase

Voltage

Cycle

Unit

kW (kcal/h)

BTU/h l/h (Pint/h)

ø

V

Hz

OUTLET

INTAKE

CS-V7DKE

2.40 (2,060)

8,180

1.5 (3.2)

Single

230

50

SIDE VIEW

CU-V7DKE

TOP VIEW

Air Volume

Noise Level

Lo

Me

Hi

SHi

Electrical Data Input

Running Current

EER

Power Cord Length

Number of core-wire

Dimensions

Starting Current

Piping Connection Port

(Flare piping)

Pipe Size

(Flare piping)

Drain

Hose

Inner diameter

Length

Height

Width

Depth

Net Weight

Compressor Description

Motor

Rated

Type

Output m

3

/min (cfm) m

3

/min (cfm) m

3

/min (cfm) m

3

/min (cfm) dB (A)

Power level dB

W

A

W/W (BTU/hW)

A inch inch inch inch mm mm m inch (mm) inch (mm) inch (mm) lb (kg)

W

Cooling; 5.8 (200)

Cooling; 6.7 (240)

Cooling; 7.8 (280)

—

—

Cooling; 26.0 (920)

Cooling; 8.5 (300)

Cooling; High 33, Low 26

—

Cooling; High 46

Cooling; High 46 Cooling; High 61

Cooling; 740

Cooling; 3.4

Cooling; 3.24 (11.1)

12.0

G ; Half Union 3/8”

L ; Half Union 1/4”

G ; (gas side) 3/8”

L ; (liquid side) 1/4”

12

650

1.9

3 (1.5 mm

2

)

11 - 1/32 (280)

31 - 15/32 (799)

G ; 3-way valve 3/8”

L ; 2-way valve 1/4”



—

—

—

—

20 - 3/32 (510)

25 - 19/32 (650)

7 - 7/32 (183)

20 (9.0)

—

—

—

9 - 1/16 (230)

55 (25)

Rotary (1 cylinder) rolling piston type

Induction (2-poles)

600

7


Air Circulation

Heat Exchanger

Description

Material

Motor

Rated

Fan Speed

Description

Tube material

Fin material

Fin Type

Row / Stage

Type

Input

Output

Low

Medium

High

SuperHigh

FPI

Size (W × H × L)

Refrigerant Control Device

Refrigeration Oil

Refrigerant (R-410A)

Thermostat

Protection Device

Capillary Tube

Air Filter

Length

Flow Rate

Inner Diameter

Material

Style

Capacity Control

Compressor Capacitor

Fan Motor Capacitor

Unit

W

W rpm rpm rpm rpm mm

(cm

3

) g (oz) mm l/min mm

µF, VAC

µF, VAC

CS-V7DKE

Cross-flow Fan

ASG20k1

Induction (4-poles)

47

15

CU-V7DKE

Propeller Fan

PP Resin

Induction (6-poles)

63

30

Cooling; 780

Cooling; 900

Cooling; 1,050

Cooling; 1,140

Evaporator

—

—

—

795

—

Condenser

Copper

Aluminium (Pre Coat)

Copper

Aluminium (Blue Coat)

Slit Fin Corrugate Fin

(Plate fin configuration, forced draft)

2 × 15 2 × 20

21

610 × 315 × 25.4

594.7

574.7

17

× 483 × 25.4

Capillary Tube

—

—

Electronic Control

—

—

—

—

P.P.

Honeycomb

FV50S (300)

890 (31.4)

—

Overload Protector

Cooling; 570

Cooling; 6.5

Cooling; 1.2

—

Capillary Tube

—

1.5 µF, 440VAC

20 µF, 400VAC

2.0 µF, 440VAC

• Specifications are subject to change without notice for further improvement.

8



Cooling Capacity

Moisture Removal

Power Source

Airflow Method

Phase

Voltage

Cycle

Unit

kW (kcal/h)

BTU/h l/h (Pint/h)

ø

V

Hz

OUTLET

INTAKE

CS-V9DKE

SIDE VIEW

3.00 (2,580)

10,230

1.7 (3.6)

Single

230

50

CU-V9DKE

TOP VIEW

Air Volume

Noise Level

Lo

Me

Hi

SHi


Running Current

EER

Starting Current


(Flare piping)

Pipe Size

(Flare piping)

Drain

Hose

Inner diameter

Length

Power Cord Length

Number of core-wire

Dimensions Height

Width

Depth

Net Weight


Motor

Rated

Type

Output m

3

/min (cfm) m

3

/min (cfm) m

3

/min (cfm) m

3

/min (cfm) dB (A)

Cooling; 5.7 (200)

Cooling; 7.2 (250)

Cooling; 8.5 (300)

—

—

Cooling; 33.0 (1,160)

Power level (dB)

W

A

W/W (BTU/hW)


W

Cooling; 9.6 (340)


—

Cooling; High 48


Cooling; 935

Cooling; 4.2





12

650

1.9

3 (1.5 mm

2

)

11 - 1/32 (280)

31 - 15/32 (799)

7 - 7/32 (183)

20 (9.0)

—

Cooling; 3.21 (10.9)

20.3

—

—





—

—

—

—

21 - 1/4 (540)

30 - 23/32 (780)

11 - 3/8 (289)

68 (31)


Induction (2-poles)

750

9


Air Circulation

Heat Exchanger

Description

Material

Motor

Rated

Type

Input

Output

Fan Speed Low

Medium

High

SuperHigh

Description

Tube material

Fin material

Fin Type

Row / Stage


Refrigeration Oil


FPI

Size (W × H × L)

Thermostat

Protection Device

Capillary Tube Length

Flow Rate

Inner Diameter

Air Filter Material

Style

Capacity Control


Fan Motor Capacitor

Unit

W


(cm

3


µF, VAC

µF, VAC

CS-V9DKE

Cross-flow Fan

ASG20k1

Induction (4-poles)

47

15

CU-V9DKE

Propeller Fan

PP Resin

Induction (6-poles)

69

30

Cooling; 780

Cooling; 980

Cooling; 1,160

Cooling; 1,310

Evaporator

—

—

830

—

Condenser

Copper


Copper




2 × 15 1 × 20

21

610 × 315 × 25.4

—

—

—

Electronic Control

—

—

—

—

P.P.

Honeycomb

17

835.1 × 508 × 22

Capillary Tube

FV50S (350)

930 (32.8)

—

Overload Protector

Cooling; 675

Cooling; 9.0

Cooling; 1.4

—

Capillary Tube

—

1.5 µF, 440VAC

25 µF, 370VAC

2.0 µF, 440VAC


10



Cooling Capacity

Moisture Removal

Power Source

Airflow Method

Phase

Voltage

Cycle

Unit

kW (kcal/h)

BTU/h l/h (Pint/h)

ø

V

Hz

OUTLET

INTAKE

CS-V12DKE

SIDE VIEW

3.68 (3,160)

12,550

2.1 (4.4)

Single

230

50

CU-V12DKE

TOP VIEW

Air Volume

Noise Level

Lo

Me

Hi

SHi


Running Current

EER

Starting Current


(Flare piping)

Pipe Size

(Flare piping)

Drain

Hose

Inner diameter

Length

Power Cord Length

Number of core-wire

Dimensions Height

Width

Depth

Net Weight


Motor

Rated

Type

Output m

3

/min (cfm) m

3

/min (cfm) m

3

/min (cfm) m

3

/min (cfm) dB (A)

Cooling; 6.5 (230)

Cooling; 8.0 (280)

Cooling; 9.5 (340)

—

—

Cooling; 30.8 (1,090)

Power level (dB) kW

A

W/W (BTU/hW)


W

Cooling; 9.7 (343)


—

Cooling; High 49


Cooling; 1.14

Cooling; 5.3





12

650

1.9

3 (1.5 mm

2

)

11 - 1/32 (280)

31 - 15/32 (799)

7 - 7/32 (183)

20 (9.0)

—

Cooling; 3.23 (11.0)

22.0

—

—





—

—

—

—

21 - 1/4 (540)

30 - 23/32 (780)

11 - 3/8 (289)

73 (33)


Induction (2-poles)

900

11


Air Circulation

Heat Exchanger

Description

Material

Motor

Rated

Fan Speed

Description

Tube material

Fin material

Fin Type

Row / Stage

Type

Input

Output

Low

Medium

High

SuperHigh

FPI

Size (W × H × L)


Refrigeration Oil


Thermostat

Protection Device

Capillary Tube

Air Filter

Length

Flow Rate

Inner Diameter

Material

Style

Capacity Control


Fan Motor Capacitor

Unit

W


(cm

3


µF, VAC

µF, VAC

CS-V12DKE

Cross-flow Fan

ASG20k1

Induction (4-poles)

47

15

CU-V12DKE

Propeller Fan

PP Resin

Induction (6-poles)

74

35

Cooling; 870

Cooling; 1,080

Cooling; 1,280

Cooling; 1,310

Evaporator

—

—

—

840

—

Condenser

Copper


Copper




2 × 15 2 × 24

21

610 × 315 × 25.4

17

707.5

727.5

× 504 × 25.4

Capillary Tube

—

—

Electronic Control

—

—

—

—

P.P.

Honeycomb

FV50S (350)

1,050 (37.1)

—

Overload Protector

Cooling; 1,276

Cooling; 11.3

Cooling; 1.7

—

Capillary Tube

—

1.5 µF, 440VAC

25 µF, 370VAC

2.0 µF, 440VAC


12

4 Dimensions

4.1. Indoor Unit & Remote Control

4.1.1. CS-V7DKE CS-V9DKE CS-V12DKE


13



4.2.1. CU-V7DKE

4.2.2. CU-V9DKE CU-V12DKE

14

5 Refrigeration Cycle Diagram


15


6 Block Diagram

16

7 Wiring Diagram


17


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 16°C to 30°C.

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

8.1.1. Cooling Operation Time Diagram

18


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

19


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.

Operation

Cooling

Soft Dry

Hi

(+2°C)

27°C

24°C

(Standard)

(±0°C)

25°C

22°C

Lo

(-2°C)

23°C

20°C

• The operation mode judging temperature and standard setting temperature can be increased by 2°C permanently, by open the circuit of JX1 at indoor electronic controller.

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 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. 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.

20


8.4.3. 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.

8.4.4. Anti-Freezing Control

• If the temperature of the indoor heat exchanger falls below 2°C 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 10°C (Recovery).

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

8.4.5. 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 2.5°C (cooling mode) or less for continuous 2 minutes, compressor will stop and restart automatically.

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

▲ T = Intake air temperature - Indoor heat exchanger temperature

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

8.4.6. 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.

21


8.4.7. Anti-Dew Formation Control

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

• When room temperature is constant (±1°C) the following conditions occur for 30 minutes continuously, anti-dew formation will activate:

− Remote Control setting temperature is less than 25°C.

− Compressor is on.

− Cooling operation mode.

− Indoor Fan motor operate at Low fan speed (CLo, Lo- or QLo).

• This control is cancelled immediately when above condition is changed, or Powerful button is pressed.

• Anti-Dew formation is control by:

1. CLo fan is changed to HLo fan.

2. QLo fan is changed to HLo fan.

8.5. Indoor Fan Speed Control

• Indoor Fan Speed can be set using remote control.

8.5.1. Fan Speed Rotation Chart

Fan Speed (rpm)

S Hi

Hi

Me

H Lo

C Lo

Lo-

S Lo

SS Lo

Q S Hi

Q Hi

Q Me

Q H Lo

Q Lo

CS-V7DKE

1140

1050

900

850

780

750

710

-

-

950

800

-

680

CS-V9DKE

1250

1140

940

840

750

750

710

-

-

1040

840

-

650

CS-V12DKE

1310

1280

1080

960

870

850

820

-

-

1180

980

-

770

22


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, Me and Lo-.

− 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. When the compressor resume operation, indoor fan will operate at Me fan speed (after 70 seconds from the restart of compressor) to provide comfort and lesser noise environment.

23


• 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.

• During Anti-dew condensation prevention, Airflow Direction

Auto-control angle change from 0°-32° to 20°-30° under

Cooling and Soft Dry operation mode.

Cooling and Soft Dry Operation

24


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.

• During Anti-dew condensation prevention, Airflow Direction

Manual control angle change from 10°, 15°, 20°, 26°, 32° to

22°, 24°, 26°, 28°, 30° under Cooling and Soft Dry operation mode.

Cooling and Soft Dry Operation

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 3°C internally against the present setting temperature (Lower temperature limit: 16°C).

• This operation automatically will be running under SHi Fan Speed (Cooling).

• 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 operation stops when:-

− Powerful operation has operate for 15 minutes.

− Powerful button is pressed again.

− Quiet button is pressed.

− Stopped by OFF/ON operation button.

− Timer OFF activates.

− Operating mode is changed.

8.10. Quiet Operation

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

(Cooling and Soft Dry Operation condition)

• Once the Quiet Mode is set at the remote control, Quiet Mode LED illuminates. The sound level will reduce either around

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

• 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 QLo+160 (However Quiet LED remains on).

25


• Manual Fan Speed:-

− RPM control during Lo cool

− RPM control during Hi & Me cool

• Auto Fan Speed:-

− Cooling operation

− Soft Dry operation

• Quiet operation stops when:-

− Quiet button is pressed again.

− Powerful button is pressed.

− Stopped by OFF/ON operation button.

− Timer OFF activates.

26


8.11. Ionizer Operation

• The Ionizer operation is to provide fresh air effect to user by producing minus ion in discharge air.

8.11.1. Operation Control

1. Ionizer individual operation

a. When air-conditioner unit is at “OFF” condition (standby) and ION operation button at the remote control is pressed, the

Ionizer and indoor fan operations will turn on. Only ION LED will illuminates. Power LED maintain off. (1

→ 2)

b. Ionizer individual operation can be turned off by pressing the ION button again. (2

→ 1)

d. Vertical airflow direction can be adjusted using remote control during Ionizer individual operation.

e. During Ionizer individual operation, operated mode (Auto, Cool, Dry) can be activated by turning on the OFF/ON operation button. (2

→ 4)

g. When the Ionizer circuit feedback process error occur for 24 times (about 11hr 30 min.), Ionizer and Air Circulation operations will turn off with ION LED blinks continuously.

(For details, please refer to Ionizer Error detection control)

2. Operation mode & Ionizer operation.

a. When air-conditioner unit is at “ON” condition and ION operation button at the remote control is pressed, the Ionizer operation will turn on. ION & Power LED will illuminate. (3

→ 4)

b. Ionizer operation stops when:

• ION operation button is press again.

• Stopped by OFF/ON operation button.

• Timer OFF activates.

• Ionizer circuit feedback signal shows error.

without ionizer operation when it is turned on again. However, if power failure occurs during Ionizer operation together with

Cooling operation, air-conditioner will start to operate at Cooling operation with Ionizer operation when the power is resumed.

27


8.11.2. Error Detection Control

• The error detection control is to inform user that error occurs at ionizer system and repairing job will be needed.

• There are two types of error detection control: a. When Ionizer is ON

− If ionizer feedback = Lo for 24 times within 11hr 30min, ION LED blinks continuously.

b. When ionizer is OFF

− If ionizer feedback = Hi, ION LED blinks continuously.

• During ionizer at breakdown condition, if ionizer feedback voltage = Lo (become normal), ION LED will stop blinking.

• The error detection control can be reset by: i) Pressing the OFF/ON operation button to switch the operation OFF.

ii) Pressing the Auto Operation button to force the operation OFF.

iii) Setting the OFF Timer to stop the operation (Not applicable when ionizer is OFF).

8.12. 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.

8.12.1. 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 20 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.

8.12.2. OFF Timer

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

8.13. 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)

8.14. Remote Control Signal Receiving Sound

• Long beep sound will be heard when:-

− Stopping the air conditioner using OFF/ON operation button.

− Stopping the Quiet Mode.

− Stopping the Powerful Mode.

− Stopping the Ion Mode.

• Short beep sound will be heard for others setting.

28


9 Operating Instructions

Thank you for purchasing Panasonic Air Conditioner

SAFETY PRECAUTIONS

■ Definition

To prevent personal injury, injury to others and property damage, the following instructions must be followed.

Incorrect operation due to failure to follow instructions will cause harm or damage, the seriousness of which is classifi ed as below:

Warning

Do not install, remove and reinstall the unit by yourself.

• Improper installation will cause leakage, electric shock or fi re. Please consult an authorized dealer or specialist for the installation work.

Warning

This sign warns of death or serious injury.

Caution

• This air conditioner must be earthed. Improper grounding will cause electric shock.

• Ensure that the drainage piping is connected properly. Otherwise, water will leak.

• Current leakage protection equipment must be installed. Otherwise, electric shock or fi re may occur.

• Do not install the unit in a potentially explosive atmosphere.

Caution

This sign warns of injury or damage to property.

The instructions to be followed are classifi ed by the following symbols:

This symbol denotes an action that is

PROHIBITED.

• Do not share power outlet.

• Do not modify power cord.

• Do not use an extension cord.

• Do not operate with wet hands.

• Do not operate or stop the unit by inserting or pulling out the power plug.

• Do not insert fi nger or other objects into the indoor or outdoor unit.

• Do not attempt to repair the unit by yourself.

• Do not use rechargeable (Ni-Cd) batteries.

• Keep the remote control away from infants and small children to prevent them from accidentally swallowing the batteries.

Warning

• Insert the power plug properly.

• Use specifi ed supply cord.

• If the supply cord is damaged or needed to be replaced, it must be replaced by the manufacturer or its service agent or a similarly qualifi ed person in order to avoid a hazard.

• Remove the batteries if the unit is not going to be use for a long period of time.

• New batteries of the same type must be inserted following the polarity stated to prevent malfunction of the remote control.

• In case of emergency or abnormal condition (burnt, smell, etc) occurs, turn off the power supply and unplug.

These symbols denote actions that are

COMPULSORY.

Safety Regulation

• Do not pull the cord to disconnect the plug.

• Do not wash the unit with water, benzene, thinner or scouring powder.

• Do not use for other purposes such as preservation of food.

• Do not use any combustible equipment at airfl ow direction.

• Do not sit or place anything on the indoor or outdoor unit.

• Do not expose directly to cold air for a long period.

The appliance is not intended for use by young children or infi rm person without supervision. Young children should be supervised to ensure that they do not play with the appliance.

Replacement or installation of power plugs shall be performed by authorized/qualifi ed personnel only. The wires in this mains lead are coloured in accordance with the following code:

(GB Standard)

Caution

• Ventilate the room regularly.

• Pay attention as to whether the installation rack is damaged after long period of usage.

• Switch off the power supply and unplug before cleaning or servicing.

• Turn off the power supply and unplug if the unit is not used for a long period of time.

Operation Condition ( O C)

Use this air conditioner under the following temperature range.

DBT: Dry Bulb Temperature

WBT: Wet Bulb Temperature

Maximum Temperature

Minimum Temperature

Indoor Outdoor

DBT WBT DBT WBT

32 23 43 26

16 11 16 11

Different countries may have different colour coding for the wires.

29


Note: The illustrations in this manual are for explanation purposes only and may differ from the actual unit. It is subjected to change without notice for future improvement.

PRODUCT OVERVIEW

Air intake

■ About

Remote Control Preparation

1. Pull out

OPE

N

Front panel

Supersonic air purifying device

Auto OFF/ON button

2. Insert batteries

(AAA or R03)

3. Press CLOCK button

Air filter

POWER TIMER

QUIET POWERFUL ION

Receiver

4. Set current time

Discharged air

Air inlet

Airflow direction louver

(side)

Air inlet

LCD display

Operation mode

Powerful operation

Quiet operation

Timer setting

Clock setting

(rear)

Ionizer

Do not touch during operation

Air outlet

AUTO

COOL

DRY

OFF

TIMER

MODE

OFF/ON

POWERFUL

QUIET

FANSPEED

TEMP

AIR SWING

FAN

SPEED

AIR

SWING

1

OFF

2

SET

3

CLOCK

RESET

Troubleshooting

● Operation delayed for few minutes after restart.

● Sound like water fl owing during operation.

● Mist emerges from indoor unit.

● Noisy during operations.

● Remote control/display does not work.

● The unit cannot operate.

● Outdoor unit emits water/steam.

POWER TIMER QUIET POWERFUL ION

Transmitter

Off/On

Indicator

Ion operation

Temperature setting

Fan speed selection

Airflow direction adjustment

Memory reset

5. Press again to confi rm

• Timer operation will be based on current time set.

• The batteries can be used for approximately 1 year.

• The batteries must be recycled or disposed of properly.

Remote Control Signal

• Make sure it is not obstructed.

• Maximum distances: 10m.

• Certain fluorescent lights may interfere with signal transmission.

Consult your dealer.

Auto OFF/ON Button

• To operate the unit if the remote control is misplaced or malfunctioning.

Action

Press once

Press until “beep” sound

Operation mode

Automatic

Operation

Cooling

Operation

• To OFF, press again the Auto OFF/

ON button.

• To switch the remote control signal receiving sound off or on.

1. Press until “beep” sound and release.

2. Press again until “beep-beep” sound and release.

3. Press to switch the sound off or on.

(Long “beep” - OFF; short “beep”

- ON)

➤

This is a normal self protection control.

➤

Caused by refrigerant fl ow inside.

➤

Condensation effect due to cooling process.

➤

Installation work could be slanted or front panel didn’t close properly.

➤

Check whether batteries are correctly inserted or need replacement.

➤

Check either circuit breaker is tripped, power plug is inserted correctly or timer is used correctly.

➤

Condensation or evaporation happens at piping surface.

30


HOW TO OPERATE

■ Operation Details

AUTO - Automatic Operation

• The unit will automatically select the operation mode according to the room temperature.

• Once the operation mode is selected, the unit will operate at the standard setting temperature as shown:

Room temperature

Operation mode

23°C & above Cool

Standard setting temperature

25°C

Below 23°C Dry 22°C

• You may press or button to change the standard setting temperature to “HI” or “LO” as shown:

Operation mode

Cool

Dry

HI

27°C

24°C

LO

23°C

20°C

COOL - Cooling Operation

• Enables you to enjoy the cooling effect at your preferred setting temperature.

• The range of temperature can be selected from 16°C ~ 30°C.

DRY - Soft Dry Operation

• Enables you to set the desired temperature at low fan speed which provides you with the dehumidifying surroundings.

• The range of temperature can be selected from 16°C ~ 30°C.

Select the desired operation.

Start the operation.

Set the temperature.

● Supersonic air purifying device (super alleru-buster) operates automatically while the air conditioner is switched on.

● Powerful, Quiet and Ion operations could be activated in all operation modes.

● Press

OFF/ON

button again to stop the operation.

Hint

● To save electricity, close the curtains when using air conditioner to prevent sunlight and heat from coming in.

Troubleshooting

● The room has a peculiar odour.

● Air conditioner does not cool effi ciently.

➤

This may be a damp smell emitted by the wall, carpet, furniture or clothing in the room.

➤

Ensure the temperature has been set correctly.

➤

Ensure windows and doors have been closed properly.

➤

Ensure fi lters are cleaned or replaced when necessary.

➤

Ensure inlet and outlet vents of the units have not been obstructed.

31


HOW TO OPERATE

Enables powerful operation.

Enables quiet operation.

IO N

Enables ion operation.

■ Operations Details

POWERFUL

• To achieve setting temperature quickly. It will operate for 15 minutes and return to the previous setting.

QUIET

• To provide a quiet environment.

ION

• To provide fresh air effect by producing negative ions.

FA N SPEED

Select fan speed.

FAN SPEED

• To provide you with the various fan speed selections.

• There are 3 levels of fan speed in addition to automatic fan speed.

• Automatic fan speed:

The speed of the indoor fan is automatically adjusted according to the operation.

AIR SWI NG

Adjust the vertical airfl ow direction louver.

AIR SWING

• To ventilate air in the room.

• There are 5 selections in addition to automatic vertical air fl ow direction.

• If automatic vertical airfl ow direction has been set, the louver swings up and down automatically.

• Please do not adjust the vertical airfl ow direction louver manually.

• Horizontal airfl ow direction louver could be adjusted manually.

● Ion operation could be activated independently.

● Powerful and Quiet operations could not be activated at the same time.

● Powerful, Quiet and Ion operations could be cancelled by pressing the respective button again.

Hints

● If you wish to have the cool air blowing directly on you, set the airfl ow direction downward but not for an excessive length of time, as it may harm your health.

● Approximately 10% of electricity can be saved if you set the temperature 1°C higher than the desired temperature during cooling operation.

Troubleshooting

● ION indicator on the indoor unit is blinking.

● Indoor fan stops occasionally during Automatic Fan

Speed setting.

➤

Press ION button twice. If the indicator is still blinking, please consult the dealer.

➤

This is an advanced feature that helps to remove smell from the surrounding area during operation.

32


HOW TO OPERATE

■ Operation Details

TIMER

• Use the ON timer to turn on the air conditioner at the desired time. This will give you a cooling environment, e.g. when you return from work or wake up.

• When the ON timer is set, operation will start 15 minutes before the actual set time.

• Use the OFF timer to stop the air conditioner operation at the desired time. This can save electricity while you are going out or sleeping.

• The set timer will repeat daily once it is set.

• If there is a power failure, you can press SET button to restore the previous setting once the power is resumed.

• If the timer is cancelled, you can restore the previous setting by pressing SET button.

Select ON or

OFF timer.

Set the desired time.

Confi rm the setting.

CA NCEL

Cancel the selected timer.

● Ensure the clock on the remote control has been set correctly.

● You could use the ON and OFF timers at the same time.

● To cancel either the ON or OFF timer, press

or , then press .

Hint

● Press CLOCK more than 10 seconds to change the time format from 24 hours to AM/PM format.

● For your convenience, you could set the air conditioner to operate automatically by using both ON and OFF timer.

Troubleshooting

● TIMER indicator always on.

● POWER indicator is blinking 15 minutes before ON timer is activated.

➤

Timer is activated and the setting will repeat itself daily.

➤

The unit is determining the operation mode by sensing the room temperature. This happens when it has been set to AUTO operation mode.

33


CARE & CLEANING

Vacuum, wash and dry.

Remove

SUPERSO NIC AIR

PURIFYI NG DEVICE

Vacuum the super alleru-buster fi lter.

Remove

FRO

Raise and Pull to remove.

Wash and dry.

Remove

IO

NT PANEL

POWER

TIMER QUIET POWERFUL ION

I NDOOR UNIT

Wipe gently.

NIZER

Clean with cotton bud.

■ Washing Instructions

• Do not use benzene, thinner or scouring powder.

• Use soaps or neutral household detergent (

≃

pH7) only.

• Do not use water with temperature higher than 40°C.

INDOOR UNIT

• Wipe the unit gently with a soft, dry cloth.

AIR FILTER

• It is recommended to clean the air fi lters once every 2 weeks.

• Purchase the replacement fi lter if it is damaged.

Part no.: CWD001144

SUPER ALLERU-BUSTER

• It is recommended to clean the fi lter every 6 months.

• Replace the fi lter every 3 years or purchase the replacement fi lter if it is damaged.

Part no.: CZ-SA13P

IONIZER

• It is recommended to clean the ionizer every 6 months.

■ Preparation for extended

Non-operation

• Operate the unit for 2~3 hours using ion operation to dry the internal parts.

• Turn off the power supply and unplug.

• Remove the remote control batteries.

■ Pre-season Inspection

• This inspection is recommended before operating the air conditioner at every season.

• Check if the remote control batteries needed to be replaced.

• Ensure there is no obstruction at all air intake and outlet vents.

• After the start of operation for 15 minutes, it is normal if the temperature differences between air intake and outlet vents at indoor unit is:-

Operation

Cooling

Temperature

8°C

Vacuum, wash and dry the frame.

Hints

● Clean the fi lter regularly as dirty fi lters will cause unpurifi ed air, low cooling or heating capacity, unpleasant smells and higher energy consumption.

● The unit will become dirty and the performance of the unit will decrease after used for several seasons. Please consult an authorized dealer to perform seasonal inspections in addition to regular cleaning.

● This air conditioner is equipped with a built-in surge protective device. However, in order to further protect your air conditioner from being damaged by abnormally strong lightning activity, you may switch off the power supply.

34


10 Installation Instructions

1.

Philips screw driver

2.

Level gauge

5.

Spanner

Required tools for Installation Works

9.

Gas leak detector

6.

Pipe cutter 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)

15. Vacuum pump 3.

Electric drill, hole core drill

(ø70 mm)

7.

Reamer

4.

Hexagonal wrench (4 mm) 8.

Knife

11. Thermometer

12. Megameter 16. Gauge manifold

10.1. 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.

WARNING

CAUTION

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.

WARNING

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 mm

2

) 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 possibly 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 0.8

mm.

• 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.

35


CAUTION

1.

The equipment must be earthed. 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.

ATTENTION

1. Selection of the installation location.

Select a 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.

Use an approved 10A power plug with earth pin for the connection to the socket..

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.

36


Attached accessories

Indoor/outdoor Unit Installation Diagram

Applicable piping kit

CZ-3F5, 7BP (V7DK, V9DK, W7DK, W9DK)

CZ-4F5, 7, 10BP (V12DK, W12DK)

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 2.3 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.

• 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.

• This illustration is for explanation purposes only.

The indoor unit will actually face a different way.

37


10.2. Indoor Unit

10.2.1. SELECT THE BEST LOCATION

(Refer to “Select the best location” section)

10.2.3. TO DRILL A HOLE IN THE WALL

AND INSTALL A SLEEVE OF

PIPING

10.2.2. HOW TO FIX INSTALLATION

PLATE

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

1. Insert the piping sleeve to the hole.

2. Fix the bushing to the sleeve.

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

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 centre of installation plate should be at more than 450 mm at right and left of the wall.

The distance from installation plate edge to ceiling should more than 67 mm.

From installation plate left edge to unit’s left side is 74 mm.

From installation plate right edge to unit’s right is 94 mm.

:

:

:

For left side piping, piping connection for liquid should be about 15 mm from this line.

For left side piping, piping connection for gas should be about 45 mm from this line.

For left side piping, piping connection cable should be about 800 mm from this line

10.2.4. INDOOR UNIT INSTALLATION

1. For the right rear piping

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.

• Line according to the arrows marked on the lower 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 150 mm and 125 mm 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.

2. For the right and right bottom piping

38

3. For the embedded piping


39

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


10.2.5. 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 3 (V7DK,

V9DK, V12DK) or 5 (W7DK, W9DK, W12DK) × 1.5 mm

2 flexible cord, type designation 245 IEC 57 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.

• Secure the cable onto the control board with the holder

(clamper).

40


INSTALLATION OF SUPER ALLERU-BUSTER FILTER

1. Open the front panel.

2. Remove the air filter.

3. Remove Supersonic air purifying device.

4. Open the Supersonic air purifying device frame.

5. Insert the super alleru-buster filter and close the Supersonic air purifying device frame as show in illustration at right.

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 louvers to the horizontal position.

3. Slide down the 2 caps on the front grille as shown in the illustration below, and then remove the 2 mounting screws.

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

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.

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 “beep” 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 pressing the following step:

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.

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.

41



10.3.1. SELECT THE BEST LOCATION

(Refer to “Select the best location” section)

10.3.2. 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. (ø10 mm).

2. When installing at roof, please consider strong wind and earthquake. Please fasten the installation stand firmly with bolt or nails.

MODEL

V7DK, V9DK, W7DK, W9DK

V12DK, W12DK

A

474

570

B

87

105

C

18.5

18.5

D

261

320

10.3.3. 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

V7DK, V9DK, W7DK, W9DK

V12DK, W12DK

Piping size (Torque)

Gas

3/8” (42 N.m)

1/2” (55 N.m)

Liquid

1/4” (18 N.m)

1/4” (18 N.m)

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.

42


10.3.4. 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 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 from 0 cmHg (0 MPa) to

-76 cmHg (-0.1 MPa). Then evacuate the air approximately ten minutes.

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.

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

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

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

10.3.5. CONNECT THE CABLE TO THE OUTDOOR UNIT

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 3 (V7DK, V9DK, V12DK) or 5 (W7DK, W9DK, W12DK) × 1.5 mm

2 flexible cord, type designation 245 IEC 57 or heavier cord.

3. Secure the cable onto the control board with the holder (clamper).

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

43


10.3.6. 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.

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.

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.

• 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.

NOTE:

These equipment shall be connected to a suitable mains network with a main impedance less than the following:

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.

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 cable being fixed to terminal board firmly?

Is the connecting cable 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 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 super alleru-buster filter is installed??

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 8°C.

44


11 Installation And Servicing Air Conditioner Using R410A

11.1. Outline

11.1.1. 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 ozonedestroying 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.

Composition (wt%)

Boiling point (°C)

Vaporizing pressure (25°C)

Saturated vapor density

Flammability

Ozone-destroying point (ODP)

Global-warming point (GWP)

Table 1 Physical comparison of R410A and R22

R410A

R32/R125 (50/50)

-51.4

1.56 Mpa (15.9 kgf/cm

2

)

64.0 kg/m

3

Non-flammable

0

1730

R22

R22 (100)

-40.8

0.94 Mpa (9.6 kgf/cm

2

)

44.4 kg/m

3

Non-flammable

0.055

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.

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.

Refrigerant Temperature (°C)

-20

0

20

40

60

65

Table 2 Comparison of R410A and R22 saturated vapor density

Unit: MPa

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

45


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.

11.1.2. 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 an water leakage, electric shock, fire, etc.

11.2. Tools For Installing/Servicing Refrigerant Piping

11.2.1. 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.

Flaring

Bending, connecting pipes

Air purging

Type of work

Gas leak inspection

Table 3 Tools for installation, transferring or replacement

Ordinary tools

Flaring tool (clutch type), pipe cutter, reamer

R410A tools

Copper pipe gauge for clearance

Adjustment, flaring tool (clutch type)*1)

Torque wrench (nominal diameter 1/4,

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

12 mm, 17 mm, 19 mm). Adjustable wrench, Spring bender

Vacuum pump. Hexagonal wrench

(opposing sides 4 mm)

Manifold gauge, charging hose, vacuum pump adaptor

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.

Type of work

Refrigerant charging

Table 4 Tools for serving

Ordinary tools R410A tools

Electronic scale for refrigerant charging.

Refrigerant cylinder. Charging orifice and packing for refrigerant cylinder

Brazing (Replacing refrigerating cycle part*1)

Nitrogen blow set (be sure to use nitrogen 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.

46


11.2.2. 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.

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 pipeexpanding 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. 1 Copper tube gauge for clearance adjustment

Fig. 2 Flaring tool (clutch type)

3. Torque wrenches

Fig. 3 Torque wrenches

For 1/4 (opposite side x torque)



Table 5

Conventional wrenches

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)

R410A wrenches

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 R410A gauges

High-pressure gauge (red)

Low-pressure gauge (blue)

-76 cmHg - 35 kgf/cm

3

-76 cmHg - 17 kgf/cm

3

-0.1 - 5.3 Mpa -76 cmHg - 53 kgf/cm

-0.1 - 3.8 Mpa -76 cmHg - 38 kgf/cm

3

3

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

Port size

Table 7 Difference between R410A and conventional manifold port size

Conventional gauges R410A gauges

7/16 UNF 20 threads 1/2 UNF 20 threads

47


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.

Pressure resistance

Material

Fig. 4 Manifold gauge charging hose

Table 8 Difference between R410A and conventional charging hoses

Working pressure

Bursting pressure

Conventional hoses

3.4 MPa (35 kgf/cm

3

)

17.2 MPa (175 kgf/cm

3

)

NBR rubber

R410A hoses

5.1 MPa (52 kgf/cm

3

)

27.4 MPa (280 kgf/cm

3

)

HNBR rubber Nylon coating inside

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

48


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.

• 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. 7 Electronic scale for 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

11.2.3. R410A Tools Which Are Usable for R22 Models

(1)

(2)

(3)

(4)

(5)

(6)

(7)

(8)

(9)

Copper tube gauge for clearance adjustment

Flaring tool (clutch type)

Table 9 R410A tools which are usable for R22 models

R410A tools Usable for R22 models

OK

OK

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

NG

NG

OK

NG

OK

NG

NG

49


11.3. Refrigerant Piping Work

11.3.1. 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.

Nominal diameter

1/4

3/8

1/2

Table 10 Copper tube thickness (mm)

Soft pipe

Outside diameter (mm)

6.35

9.52

12.7

R410A

0.80

0.80

0.80

Thickness (mm)

(Reference) R22

0.80

0.80

0.80

11.3.2. 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.

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)

Fig. 10 Flaring dimensions

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

50


Nominal diameter

1/4

3/8

1/2

Nominal diameter

1/4

3/8

1/2

Nominal diameter

1/4

3/8

1/2

Nominal diameter

1/4

3/8

1/2

Outside diameter

(mm)

6.35

9.52

12.70

Table 11 R410A flaring dimensions

Wall thickness

(mm)

R410A flaring tool, clutch type

0.8

0.8

0.8

0 - 0.5

0 - 0.5

0 - 0.5

A (mm)

Conventional flaring tool

Clutch type

1.0 - 1.5

1.0 - 1.5

1.0 - 1.5

Wing-nut type

1.5 - 2.0

1.5 - 2.0

2.0 - 2.5

Outside diameter

(mm)

6.35

9.52

12.70

Table 12 R22 flaring dimensions

Wall thickness

(mm)

R410A flaring tool, clutch type

0.8

0.8

0.8

0 - 0.5

0 - 0.5

0 - 0.5

A (mm)

Conventional flaring tool

Clutch type Wing-nut type

0.5 - 1.0

0.5 - 1.0

0.5 - 1.0

1.0 - 1.5

1.0 - 1.5

1.5 - 2.0


6.35

9.52

12.70

Table 13 R410A flare and flare nut dimensions Unit: mm

Wall thickness

(mm)

A +0, -0.4

B dimension

C dimension

0.8

9.1

9.2

6.5

0.8

0.8

13.2

16.6

13.5

16.0

9.7

12.9

D dimension

13

20

23

Flare nut width

17

22

26


6.35

9.52

12.70

Table 14 R22 flare and flare nut dimensions Unit: mm

Wall thickness

(mm)

A +0, -0.4

B dimension

C dimension

0.8

9.0

9.2

6.5

0.8

0.8

13.0

16.2

13.5

16.0

9.7

12.9

D dimension

13

20

20

Flare nut width

17

22

24

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.

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.

Nominal diameter

1/4

3/8

1/2

Table 15 R410A tightening torque


Tightening torque

N.m (kgf.cm)

6.35

14 - 18 (140 - 180)

9.52

12.70

33 - 42 (330 -420)

55 (550)

Torque wrench tightening torque

N.m (kgf.cm)

18 (180)

42 (420)

55 (550)

11.3.3. 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.

51


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.

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

11.4. Installation, Transferring, Servicing

11.4.1. 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).)

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).

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.

52

Fig. 12 Vacuum pump air purging configuration


11.4.2. 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 counterclockwise. (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 3way 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.

11.4.3. 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.

11.4.4. 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.

53


11.4.5. 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 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

54


11.4.6. 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 (N

2

) flow.

<Brazing Method for Preventing Oxidation>

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 m

3

/h, or 0.02 MPa (0.2 kgf/cm

2

) 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.

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.

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.

11.4.7. 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 models only)

55


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 practical, be sure to heat the Pb free solder until it melts, before applying Pb solder.

12.2. Indoor Electronic Controllers Removal Procedures

• Electronic controller and Display Complete unit can be seen by following the below removal procedures.

Fig. 1

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

Front Grille. (Fig. 1)

Fig. 3

− Release the taps on top and on the right side of metal plate cover. (Fig. 3)

− Then remove the metal plate cover. (Fig. 3)

− Remove the indicator complete screw, and then remove the indicator complete. (Fig. 3)

Fig. 2

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

56


Fig. 4

− To remove the electronic controller.

− Release CN-FM connectors. (Fig. 4)

− Release CN-Sonic connector. (Fig. 4)

− Release CN-FB connector. (Fig. 4)

− Release CN-ION connector. (Fig. 4)

− Release CN-TH connector. (Fig. 4)

− Release CN-STM connector. (Fig. 4)

− Release CN-REC/DISP connector. (Fig. 4)

Fig. 5

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

5)

− Release Ry-Pwr connector (black and brown) and Ac-

Wht connector from the PCB. (Fig. 5)

12.3. Indoor Fan Motor And Cross Flow Fan Removal Procedures

• Remove Control Board Cover

Fig. 6

− Remove the screw on the left of the unit. (Fig. 6)

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

(Fig. 6)

− Pull down the Discharge Grille Complete. (Fig. 6)

Fig. 7

57

Fig. 8

− Remove indoor pipe sensor and air intake sensor from the evaporator. (Fig. 7)

− Remove the earth wire from the evaporator. (Fig. 7)


− Release the generator complete wire (green and red).

(Fig. 8)

− Remove 2 screws on the right and 1 screw at the left side of the control board. (Fig. 7)

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

(Fig. 7)

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

(Fig. 7)

Fig. 10

− Push up the evaporator and remove cross flow fan by pulling both cross flow fan and fan motor. (Fig. 10)

Fig. 9

− Remove the cross flow fan bushing from the chassis.

(Fig. 9)

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

12.4. 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.

58


12.5. 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.

12.5.1. 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.

12.5.2. Select 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.

59


13 Troubleshooting Guide

13.1. Refrigeration Cycle System

In order to diagnose malfunctions, make sure that there are no electrical problems before inspecting the refrigeration cycle.

Such problems include insufficient insulation, problem with the power source, malfunction of a compressor and a fan.

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.

60


13.2. Relationship Between The Condition Of The Air Conditioner And

Pressure And Electric Current

Cooling Mode

Condition of the air conditoner 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.

Insufficient compressing of a compressor

• The discharge tube of the compressor becomes abnormally hot (normally 70 to 90°C).

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

Locked compressor

• Electric current reaches a high level abnormally, and the value exceeds the limit of an ammeter. In some cases, a breaker turns off.

• The compressor is a humming sound.

61


14 Technical Data

14.1. Thermostat Characteristics

14.1.1. CS-V7DKE CS-V9DKE CS-V12DKE

14.2. Sensible Capacity Chart

14.2.1.

● CS-V7DKE

230V

Indoor wet bulb temp.

17.0°C

19.0°C

19.5°C

22.0°C

TC

2.38

2.61

2.85

30

SHC

1.80

1.89

1.96

IP

0.68

0.69

0.70

TC

2.22

2.40

2.44

2.66

14.2.2.

● CS-V9DKE

230V


17.0°C

19.0°C

19.5°C

22.0°C

TC

2.98

3.27

3.56

30

SHC

2.26

2.36

2.45

14.2.3.

● CS-V12DKE

230V


17.0°C

19.0°C

19.5°C

22.0°C

TC

3.65

4.01

4.37

30

SHC

2.77

2.90

3.01

IP

0.86

0.88

0.89

IP

1.04

1.06

1.08

TC

2.78

3.00

3.05

3.33

TC

3.41

3.68

3.75

4.08

TC - Total Cooling Capacity (kW)

SHC - Sensible Heat Capacity (kW)

IP - Input Power (kW)

35

SHC

1.73

1.82

1.88

Outdoor Temp. (°C)

IP

0.73

0.74

0.74

0.76

TC

2.07

2.27

2.48

40

SHC

1.66

1.75

1.82

IP

0.78

0.79

0.81

35

SHC

2.16

2.27

2.36

Outdoor Temp. (°C)

IP

0.93

0.94

0.94

0.96

TC

2.59

2.84

3.10

40

SHC

2.08

2.18

2.27

IP

0.99

1.01

1.03

35

SHC

2.65

2.78

2.89

Outdoor Temp. (°C)

IP

1.12

1.14

1.14

1.17

TC

3.17

3.48

3.80

40

SHC

2.55

2.68

2.79

IP

1.20

1.22

1.25

TC

1.88

2.07

2.25

46

SHC

1.58

1.66

1.73

IP

0.84

0.86

0.87

TC

2.35

2.58

2.81

46

SHC

1.98

2.08

2.17

IP

1.07

1.09

1.11

TC

2.89

46

SHC

2.42

IP

1.30

3.17

3.45

2.55

2.66

1.32

1.34

Indoor 27°C/19°C

Outdoor 35°C/24°C

62

14.3. Operation Characteristics

14.3.1. CS-V7DKE CU-V7DKE


14.3.2. CS-V9DKE CU-V9DKE

63


14.3.3. CS-V12DKE CU-V12DKE

64

15 Exploded View (Indoor Unit)

15.1. CS-V7DKE CS-V9DKE CS-V12DKE


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.

65


16 Replacement Parts List (Indoor Unit)

16.1. CS-V7DKE CS-V9DKE CS-V12DKE

25

26

27

28

29

30

20

21

22

24

31

32

33

34

13

14

15

16

17

18

19

REF. NO.

1

2

3

4

5

8

9

6

7

10

11

12

41

42

43

44

45

46

47

48

49

35

36

37

38

39

40

PART NAME & DESCRIPTION

CHASSY COMPLETE

FAN MOTOR

CROSS FLOW FAN COMPLETE

BEARING ASS’Y

SCREW - CROSS FLOW FAN

EVAPORATOR

FLARE NUT

FLARE NUT

HOLDER SENSOR

DISCHARGE GRILLE COMPLETE

VERTICAL VANE

CONNECTING BAR

CONNECTING BAR

AIR SWING MOTOR

LEAD WIRE - AIR SWING MOTOR

CAP - DRAIN TRAY

HORIZONTAL VANE

BACK COVER CHASSIS

CONTROL BOARD CASING

TERMINAL BOARD COMPLETE

POWER SUPPLY CORD

ELECTRONIC CONTROLLER - MAIN

SENSOR COMPLETE

CONTROL BOARD FRONT COVER

INDICATOR COMPLETE

INDICATOR HOLDER

INDICATOR HOLDER

CONTROL BOARD TOP COVER

REMOTE CONTROL COMPLETE

FRONT GRILLE COMPLETE

INTAKE GRILLE

GRILLE DOOR

AIR FILTER

SCREW - FRONT GRILLE

CAP - FRONT GRILLE

DRAIN HOSE

INSTALLATION PLATE

BAG COMPLETE - INSTALLATION SCREW

FULCRUM

ELECTRONIC CONTROLLER - IONIZER

CASING - IONIZER

CASING - IONIZER

ION GENERATOR

SUPERSONIC AIR PURIFYING DEVICE

ELECTRONIC CONTROLLER SUPERSONIC

SUPER ALLERU BUSTER FILTER

FRAME FR AIR FILTER SUPERSONIC

FRAME FR AIR FILTER SUPERSONIC

CS-V7DKE

CWD50C1377

CWA921181

CWH02C1031

CWH64K007

CWH4580304

CWB30C1599

CWT25086(1/4”)

CWT25087 (3/8”)

CWH32143

CWE20C2366

CWE241150

CWE261066

CWE261070

CWA98260

CWA67C3977

CWH521096

CWE241173

CWD932454

CWH102259

CWA28C2073

CWA20C2159

CWA743659

CWA50C2122

CWH131195

CWE39C1115

CWD932429

CWD932430

CWH131207

CWA75C2600

CWE11C3125

CWE22C1154

CWE141073

CWD001144

XTT4+16C

CWH521109

CWH851063

CWH361067

CWH82C067

CWH621046

CWA743675

CWD932464

CWD932431

CWH94C0001

CWH91C1013

CWA743874

CWD00C1133

CWD011026

CWD011027

1

1

1

1

1

1

1

1

1

1

1

2

1

1

1

1

1

1

1

1

1

1

1

1

1

1

9

1

QTY.

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

2

2

1

(Note)

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

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

CWA743660

←

←

←

←

←

←

←

←

←

←

←

←

←

←

←

←

←

←

←

←

←

←

←

←

←

←

CS-V9DKE

←

←

←

←

←

←

←

←

←

←

←

←

←

←

←

←

←

←

←

←

←

CS-V12DKE

←

←

←

←

←

CWB30C1583

←

CWT25096 (1/2”)

←

←

←

←

←

←

←

←

←

←

←

CWA28C2075

←

CWA743553

←

←

←

←

←

←

←

←

←

←

←

←

←

←

←

←

←

←

←

←

←

←

←

←

←

←

REMARKS

0

0

0

0

0

0

0

0

0

0

66

17 Exploded View (Outdoor Unit)

17.1. CU-V7DKE


Note:



67


17.2. CU-V9DKE CU-V12DKE

Note:



68


18 Replacement Parts List (Outdoor Unit)

18.1. CU-V7DKE

REF. NO.

1

2

3

4

8

9

10

11

5

6

7

12

13

14

15

16

17

18

19

20

22

23


CHASSY ASS’Y

SOUND PROOF MATERIAL

FAN MOTOR BRACKET

SCREW - FAN MOTOR BRACKET

FAN MOTOR

SCREW - FAN MOTOR MOUNT

PROPELLER FAN ASS’Y

NUT - PROPELLER FAN

COMPRESSOR

ANTI - VIBRATION BUSHING

NUT - COMPRESSOR MOUNT

CONDENSER

CAPILLARY TUBE ASS’Y

STRAINER

HOLDER COUPLING ASS’Y

2-WAY VALVE (LIQUID)

3-WAY VALVE (GAS)

TERMINAL COVER

NUT - TERMINAL COVER

SOUND PROOF BOARD

TERMINAL BOARD ASS’Y

CAPACITOR - COMPRESSOR

24

25

HOLDER CAPACITOR

CAPACITOR - FAN MOTOR

26

27

28

29

30

32

34

35

36

37

38

39

40

41

CABINET SIDE PLATE (L)

CABINET SIDE PLATE (R)

CABINET FRONT PLATE

WIRE NET

CABINET TOP PLATE

CONTROL BOARD COVER

OPERATION INSTRUCTIONS (ENG., ESP., ITA., NED., POR.,

GRE., BUL.)

INSTALLATION INSTRUCTIONS (ENG., FRA., ESP. & DEU.)

OVERLOAD PROTECTOR

HOLDER O.L.P.

CHECK VALVE COMPLETE

OPERATION INSTRUCTIONS (FRA., DEU., SWE., NOR.)

INSTALLATION INSTRUCTIONS (ITA., NED., POR. & GRE.)

INSTALLATION INSTRUCTIONS (BUL.)

(Note)



1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

3

3

1

1

1

3

1

1

1

1

QTY.

1

1

1

2

1

1

1

1

1

1

1

1

CU-V7DKE

CWD50K2107

CWG302292

CWD541074

CWH551060

CWA951392

CWH55406

CWH03K1020

CWH56053

5RS084DAB21

CWH50077

CWH56000

CWB32C1495

CWB15K1145

CWB11025

CWH351047

CWB021233

CWB011275

CWH171011

CWH7080300

CWH151074

CWA28K1064

CWA312074

(20µF, 400VAC)

CWH301038

DS441125BPQD

(2.0µF, 440VAC)

CWE041110A

CWE04C1042

CWE06K1052

CWD041057A

CWE031041A

CWH131193

CWF564472

CWF612663

CWA121066

CWH7041200

CWB03C1024

CWF564473

CWF612664

CWF612679

REMARKS

0

0

0

0

0

0

0

69


18.2. CU-V9DKE CU-V12DKE

11

12

13

14

15

16

17

18

19

20

21

22

23

REF. NO.

1

2

3

4

8

9

10

5

6

7


CHASSY ASS’Y

SOUND PROOF MATERIAL

FAN MOTOR BRACKET

SCREW - FAN MOTOR BRACKET

FAN MOTOR

SCREW - FAN MOTOR MOUNT

PROPELLER FAN ASS’Y

NUT - PROPELLER FAN

COMPRESSOR

ANTI - VIBRATION BUSHING

NUT - COMPRESSOR MOUNT

CONDENSER

CAPILLARY TUBE ASS’Y

STRAINER

HOLDER COUPLING ASS’Y

2-WAY VALVE (LIQUID)

3-WAY VALVE (GAS)

TERMINAL COVER

NUT - TERMINAL COVER

SOUND PROOF BOARD

CONTROL BOARD CASING

TERMINAL BOARD ASS’Y

CAPACITOR - COMPRESSOR

24

25

HOLDER CAPACITOR

CAPACITOR - FAN MOTOR

1

1

1

1

3

1

1

1

1

1

1

1

1

1

1

3

1

3

1

QTY.

1

1

1

2

1

1

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

41

CABINET SIDE PLATE (L)

CABINET SIDE PLATE (R)

CABINET FRONT PLATE

WIRE NET

CABINET TOP PLATE

PLATE - C. B. COVER

CONTROL BOARD COVER

HANDLE

OPERATION INSTRUCTIONS (ENG., ESP., ITA.,

NED., POR., GRE., BUL.)

INSTALLATION INSTRUCTIONS (ENG., ESP., FRA.,

DEU.)

OVERLOAD PROTECTOR

CHECK VALVE COMPLETE

OPERATION INSTRUCTIONS (FRA., DEU., SWE.,

NOR.)

INSTALLATION INSTRUCTIONS (NED., GRE., ITA.,

POR.)

INSTALLATION INSTRUCTIONS (BUL.)

HOLDER O.L.P.

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

(Note)



CU-V9DKE

CWD50K2071

CWG302088

CWD541030

CWH551059

CWA951114

CWH55406

CWH03K1006

CWH56053

5PS112DAG21

CWH50077

CWH56000

CWB32C1561

CWB15K1138

CWB11025

CWH351023

CWB021058

CWB011063

CWH171011

CWH7080300

CWH151022

CWH102202

CWA28K1064

DS371256CPNA

(25µF, 370VAC)

CWH30057

DS441205NPQA

(2.0µF, 440VAC)

CWE041031A

CWE041036A

CWE06K1034

CWD04C1007

CWE031014A

CWH131088

CWH13C1065

CWE161010

CWF564472

CWF612663

CWA121221

CWB03C1027

CWF564473

CWF612664

CWF612679

CWH7041200

CU-V12DKE

←

←

←

←

CWA951116

←

←

←

5PS132DAG21

←

CWH4582065

CWB32C1562

CWB15K1133

CWB111011

←

←

CWB011062

←

←

CWH151023

←

←

←

←

←

←

CWE041037A

←

CWD04C1008

←

←

←

←

←

←

CWA121214

CWB03C1026

←

←

←

-

REMARKS

0

0

0

0

0

0

0

0

70


19 Electronic Circuit Diagram

19.1. Indoor Unit & Outdoor Unit

SCHEMATIC DIAGRAM 1/4

ELECTRONIC CONTROL UNIT

Auto

SW

SW01

2

1

R11

1k

C01

0.01

µ

R07

10k

SUPERSONIC COMPLETE

R603

1M

C601

0.1

µ

X601

IC601

R602

5.1k

R601

1k

1

2

3

CN-SONIC

1

2

3

CN-SONIC

R78

10k c

R55

1k

BZ

BZ01 e

R12

1k

C02

0.01

µ

R88

5.1k

b

Q01

C143XKTX

DISPLAY COMPLETE

IC401

1

2

3

R401 47

Ω

TIMER/AIR SW(ORG)

POWER(GRN)

+

C401

47

µ

6.3V

D402

D401

POWERFUL(ORG)

QUIET(ORG)

ION(GRN)

D403

D404

D405

D406

SUPERSONIC(BLU)

7

6

5

4

3

2

1

10

9

8

CN-DISP

CN-DISP

4

5

6

7

8

9

10

1

2

3

C24 0.01

µ

C25 0.01

µ

C26 0.01

µ

R15

180

Ω

C28

0.01

µ

C27

0.01

µ

C35

0.01

µ

C29

0.1

µ

R27 220

Ω

R17

220

Ω

R73

3.3k

Ω

R13 220

Ω

R14 220

Ω c e

R68

100

Ω b

Q09

R31

1k

R56

1k

CN-HA

4

3

2

1

C22

0.01

µ

R58

10k

R59 1k

JP5

C23

0.01

µ

R60

10k

71



C39

R75 1k

R76 1k

R74 1k

R77 1k

R06 24k

R18

R19

R20

R21

R22

R23

R24

R25

C38

1000p

R10

10k

D12

D11

D10

D09

D08

D07

D06

D05

64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49

1

P50

2

P51

3

P52

4

P53

5

P54

6

P55

7

P56

8 P57

9

Vss0

10 VDD0

11

P30

12

P31

13

P32

14

P33

15

P34

16

P35

RY-PWR DRIVE SIGNAL

DISPLAY

AUTO RESTART

STEPPING

MOTOR

DRIVE

SIGNAL

BUZZER

IC01

INTAKE AIR TEMP

PIPE TEMP

GROUND

AUTO OPERATION

TEST RUN

REMOTE CONTROL

SOUND

POWER CLOCK INPUT

REMOTE-CONTROL

COMMAND INPUT

OSC

RESET

POWER

TIMER SHORTEN

P71

48

TOD

47

P03

46

INTP2

45

INTP1

44

INTP0

43

Vss1

42

X1

41

X2

40

IC(VPP)

39

XT1

38

XT2 37

RESET

36

AVDD

35

AVref

34

AN10

33

JP2

17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32

4

5

6

1

2

3

7

8

16

15

14

13

12

11

10

9

IC05

B1HBGGF00013

RY-PWR

R05

43

Ω

1/2W

R04

43

Ω

1/2W

5 4 3 2 1

CN-STM1

5 4 3 2 1 (ZH5)

VERTICAL

6

7

4

5

1

2

3

8 16

15

14

13

12

11

10

9

IC06

B1HBGGF00013

R09

10k

JX2

5

6

DI

DO

SK

4

CS 3

7 GND Vcc 2

8 RS

R/B

1

C05

0.1

µ

16V

IC02

C3EBDG000021

C04

0.1

µ

16V

R30

20k

R33

15k

C08

0.1

µ

16V

(PH)

CN-TH

PIPE TEMP. SENSOR

(20k 3950)

4 3 2 1

(RED)

AIR TEMP. SENSOR

(15k 3950)

72



R66

5

2

T01

8

R48

13

IC04

REGULATOR

DB01

~

+

~

C17

3300

µ

35V

I 12V O

G

IC03

REGULATOR

C14

470

µ

25V

I

5V

G

O

C11

100

µ

16V

Q02

C143XKTX b

4.7k c

SSR02

10k e

Q03

C143XKTX b 4.7k c

SSR01

10k e

R32

150k

R41

1k

X01

C16

0.01

µ

R44

1k

ZNR01 c e b

R03 1.3k

R29

1.6k

C07

0.1

µ

16V

D16

R57 12k

D15

R47 12k

C19

0.047

µ

L01

125

µH

FUSE

T 2A L 250V

C03

0.047

µ

RY-PWR

AC-WHT

L

P

TEMPERATURE

FUSE

1

2

TO OUTDOOR

4.096 MHz

(47pF X 2)

JP3

C18

0.1

µ

16V

R49 1k

R50

100k

C36

C10

0.1

µ

16V

R38

C15

0.01

µ

R43

R79

10k

JP4

JX1

C37

0.01

µ

R37

10k

R02 1k

R01

10k

1

TEST

2 c e b

Q05

C2412KTX

R51

10k c

Q06

C2412KTX b e

R54

6.2k

R53

10k

Z01

7.5V

R52

6.2k

C21

10

µ

50V

C12

0.1

µ

16V

R36

1k

R67

R62

R61

10k c

Q08 b e

R64

6.2k

R63

6.2k

Q07 c b e

C31

0.01

µ

D01

C32

0.01

µ

CN-FM

C-FM

1.5

µ

CN-FB

1

2

3

1

2

3

4

5

FAN MOTOR

2

1

4

3

CN-ION

73



1

2

TO INDOOR

B

CAPACITOR

B

R

COMPRESSOR

Y

OVER LOAD

PROTECTOR

1 2 3

OR

1

OVER LOAD

PROTECTOR

4

GR

V7/12DK

V9DK

B B

Y

FAN

MOTOR

R

HIGH VOLTAGE IONIZER

EH-4P

2

1

4

3

CH1

VIN

GND

ERR

F1

C2

R2 R3

Q1 c b e

C1 c

Q2 b e

C3 R4

R5

D2

R6

C8 c

Q4 b

D1 e

Q5 b

4.7k

10k c

D3 e

R13

R14

R9

R15

D5

Z02

C5

C6

D4

Z01

R10

T1

D101

R101

R102

CN2

HV

D102

C101

R12

C7

-4.2kV

CN3

GND

74

75



How to use electronic circuit diagram

TIMER TABLE

Name

Real Timer

Time Delay Safety Control

Forced Operation

Time Save Control

Anti-Freezing

Auto Mode Judgement

Soft Dry OFF

ON

Cooling

Deodorizing Control

Soft Dry

Comp. Reverse Rotation Detection

Comp./ Fan Motor Delay Timer

Powerful Mode Operation

Random Auto Restart Control

Time

1 hr.

10 min.

1 min.

2 min. 58 sec.

60 sec.

7 min.

4 min.

20 sec.

6 min.

10 min.

40 sec.

70 sec.

20 sec.

180 sec.

40 sec.

360 sec.

5 min.

2 min.

1.6 sec.

15 min.

0 ~ 62 sec.

Test Mode

(When test point

Short-circuited)

1 min.

10 sec.

1 sec.

0 sec.

0 sec.

4.2 sec.

0 sec.

0 sec.

36 sec.

60 sec.

4 sec.

7 sec.

2 sec.

18 sec.

4 sec.

36 sec.

30 sec.

0 sec.

0 sec.

15 sec.

0 ~ 6.2 sec.

Remarks

Soft Dry: 10 min. operation

Comp. ON 5 min. and above

76

19.2. Remote Control


77


19.3. Print Pattern

Indoor Unit Printed Circuit Board

BOTTOM VIEW

78

TOP VIEW


79


19.4. Print Pattern

Indicator & Receiver Printed Circuit Board

BOTTOM VIEW

TOP VIEW

80 [PHAAM] Printed in Malaysia

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