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Order No: GMAC0401004C3

Room Air Conditioners
CS-PC9CKV CU-PC9CKV CS-PC12CKV CU-PC12CKV

CONTENTS
Page
1 Functions 2 Product Specifications 3 Dimensions 4 Refrigeration Cycle Diagram 5 Block Diagram 6 Wiring Diagram 7 Operation Details 8 Installation 9 2-way, 3-way Valve 10 Disassembly of the parts 2 5 9 12 13 14 15 22 36 43 11 Trouble-shooting guide 12 Technical Data 13 Exploded View 14 Replacement Parts List 15 Exploded View 16 Replacement Parts List 17 Exploded View 18 Replacement Parts List 19 ELECTRONIC CIRCUIT DIAGRAM

Page
47 49 51 52 53 54 55 56 57

Guangzhou Matsushita Air Conditioner Co., Ltd. (GMAC) All rights reserved. Unauthorized copying and distribution is a violation of law.

CS-PC9CKV CU-PC9CKV / CS-PC12CKV CU-PC12CKV

1 Functions

AUTO COOL DRY FAN

STD

Operation START/ST OP

Room Temperature Setting
Temperature Setting(16 C to 30 C)

Operation Mode Selection
Automatic Mode Operation

Auto Operation

Timer Operation Selection
Soft Dry Mode Operation Air Circulation Operation Stop/Start Operation Control (set the ON/OFF Timer hourly later)

Indoor Fan Speed Selection
Low Speed

Set /Cancel Timer Operation
Set timer/Cancel the set timer

Medium Speed High Speed

Automatic Speed

Airflow Direction Control
Auto Airflow Direction Airflow Direction Manual Control

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CS-PC9CKV CU-PC9CKV / CS-PC12CKV CU-PC12CKV

Indoor Unit

Power Switch ON/OFF

Anti-freezing Control for the Evaporator
Cooling or Soft Dry Operation

Auto Mode Operation Selection Button Time Delay Safety Control
When the remote control cannot be used, please use this button. The unit will restart operation after 3-4 minutes after each pause.

Signal Receiving Sound Control
Keep pressing this button for 10sec to turn on or turn off the signal receiving sound.

Automatic Restarting Control
7-minutes automatic restarting at Cooling Operation

Test Run
Used when testing or repairing

Indoor Fan Speed Control
High,Med,Low Auto Fan Speed

Operation Indication Lamps
Operation (green) Iights up in operation Blinks during Test Run operation and determining Auto Operation mode Timer in operation

Airflow Direction Control
Automatic Airflow Direction Control The louver automatically swings up and down Airflow Direction Manual Control

Timer(orange)

Operation Mode
Cooling/Soft Dry/Air Circulation/ Auto Operation

Delayed On-timer Control
For cooling or soft dry mode, the unit starts 15 minutes before the set time with the remote control.

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CS-PC9CKV CU-PC9CKV / CS-PC12CKV CU-PC12CKV

Outdoor Unit

CU-PC9CKV

CU-PC12CKV

Anti-reverse Protection
To protect the compressor from reverse rotation when power off suddenly.

60-seconds Test Operation Control
Once the compressor is activated,it does not stop for 60 seconds.It stops immediately with remote controller ON/OFF button.

Overload Protector
The 2-step Overload Protector is to protect the compressor when 1/ temperature of compressor reaches 120 C 2/ high temperature or current enters into the compressor.

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CS-PC9CKV CU-PC9CKV / CS-PC12CKV CU-PC12CKV

2 Product Specifications
Unit Cooling Capacity kW CS-PC9CKV 2.50 CU-PC9CKV

Moisture Removal

L/h

1.40

Power Source

Phase V Cycle

Single 220-230 60

Airflow Method

OUTLET

SIDE VIEW

TOP VIEW

INTAKE

Air Circulation

Indoor Air (low)

m3/min

7.0

--

Indoor Air (medium)

m3/min

7.8

--

Indoor Air (high)

m3/min

8.8

--

Outdoor Air

m3/min

--

--

Noise Level

dB(A)

High36, Low30

High49

Electrical Data

Input

W

830-840

Running Current

A

4.0-3.9

EER Starting Current Piping Connection Port (Flare piping) Piping Size (Flare piping) Drain Inner Diameter Hose Length Power Supply Cord Length (Number of core-wire) Dimensions Height Width Depth Net Weight Compressor Type Motor Type Rated Output

W/W A Inch Inch Inch Inch mm m m mm mm mm kg

3.0-2.98 19 G: half union 3/8" L: half union 1/4" G: gas side 3/8" L: liquid side 1/4" 12 0.6 2.2 3 core-wire/1.5mm 2 250 770 205 8.0 -- -- -- G: 3-way valve 3/8" L: 2-way valve 1/4" G: gas side 3/8" L: liquid side 1/4" -- -- -- -- 534 590 255 26 Rotary(1 cylinder) Rolling piston type Induction(2 pole) 650

W

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Unit Air Circulation Type Motor Type Input Rated Output Fan Speed Low Medium High Description Tube Material Fin Type Rows / Stage

W W rpm rpm rpm

Heat Exchanger

FPI Dimensions Refrigerant Control Device Refrigeration Oil Refrigerant (R-22) Thermostat Protection Device Capillary

mm (c.c) g

Length Circulation Inner Diameter

mm L/min mm

Air Filter Refrigerant Circulation Control Device Compressor Capacitor Fan Motor Capacitor

FV FV

CS-PC9CKV CU-PC9CKV Cross-flow Fan Propeller fan Induction (4 pole) Induction (4 pole) 38.4 58.2 13 22 87060 -- 98060 -- 110060 88060 Evaporator Condenser copper copper slot type Corrugation type (Plate fin configuration, forced draft) 2 12 1 20 18 18 610 252 25.4 568.8 508 22 -- Capillary Tube -- SUNISO 4GDID or ATMOS M60 (M56) -- 530* Electronic Control -- -- O.L.P.(25A/230V) -- 630 -- 11.7 -- 1.5 P.P Honeycomb -- Capillary -- 30F, 370V 1.5F, 400V 1.5F, 440V

Specifications are subject to change without notice for further improvement. * 60g for air purging is not included.

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CS-PC9CKV CU-PC9CKV / CS-PC12CKV CU-PC12CKV

Unit Cooling Capacity kW

CS-PC12CKV 3.50

CU-PC12CKV

Moisture Removal

L/h

2.1

Power Source

Phase V Cycle

Single 220-230 60

Airflow Method

OUTLET

SIDE VIEW

TOP VIEW

INTAKE

Air Circulation

Indoor Air (low)

m3/min

8.0

--

Indoor Air (medium)

m3/min

8.7

--

Indoor Air (high)

m3/min

9.9

--

Outdoor Air

m3/min

--

--

Noise Level

dB(A)

High39, Low33

High47

Electrical Data

Input

W

1210-1220

Running Current

A

5.70-5.50

EER Starting Current Piping Connection Port (Flare piping) Piping Size (Flare piping) Drain Inner Diameter Hose Length Power Supply Cord Length (Number of core-wire) Dimensions Height Width Depth Net Weight Compressor Type Motor Type Rated Output

W/W A Inch Inch Inch Inch mm m m mm mm mm kg

2.89-2.87 25 G: half union 3/8" L: half union 1/4" G: gas side 3/8" L: liquid side 1/4" 12 0.6 2.2 3 core-wire/1.5mm 2 250 770 205 8.0 -- -- -- G: 3-way valve 3/8" L: 2-way valve 1/4" G: gas side 3/8" L: liquid side 1/4" -- -- -- -- 505 780 245 30 Rotary(1 cylinder) Rolling piston type Induction(2 pole) 850

W

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CS-PC9CKV CU-PC9CKV / CS-PC12CKV CU-PC12CKV

Unit Air Circulation Type Motor Type Input Rated Output Fan Speed Low Medium High Description Tube Material Fin Type Rows / Stage

W W rpm rpm rpm

Heat Exchanger

FPI Dimensions Refrigerant Control Device Refrigeration Oil Refrigerant (R-22) Thermostat Protection Device Capillary

mm (c.c) g

Length Circulation Inner Diameter

mm L/min mm

Air Filter Refrigerant Circulation Control Device Compressor Capacitor Fan Motor Capacitor

FV FV

CS-PC12CKV CU-PC12CKV Cross-flow Fan Propeller fan Induction (4 pole) Induction (4 pole) 43 61 16 20 98060 -- 111060 -- 126060 74050 Evaporator Condenser copper copper slot type Corrugation type (Plate fin configuration, forced draft) 2 12 1 19 21 16 610 315 25.4 706.2 482.6 22 -- Capillary Tube -- SUNISO 4GDID or ATMOS M60 (M56) -- 800* Electronic Control O.L.P.(25A/230V) -- -- -- 720 -- 11.0 -- 1.5 P.P Honeycomb -- Capillary -- 30F, 370V 1.5F, 400V 1.5F, 400V

Specifications are subject to change without notice for further improvement. * 60g for air purging is not included.

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3 Dimensions

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4 Refrigeration Cycle Diagram
4.1. CS/CU-PC9CKV, CS/CU-PC12CKV

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5 Block Diagram
5.1. CS/CU-PC9CKV,CS/CU-PC12CKV

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6 Wiring Diagram
6.1. CS/CU-PC9CKV, CS/CU-PC12CKV

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CS-PC9CKV CU-PC9CKV / CS-PC12CKV CU-PC12CKV

7 Operation Details
7.1. Cooling Mode Operation
When selecting the Cooling Mode Operation, the unit will operate according to the setting by the Remote Control and the operation is as the following. Time Delay Safety Control 3 min. ---- The compressor is ceased for 3 minutes to balance the pressure in the refrigeration cycle. (Protection of compressor).

Automatic Restarting Control 7 min. ---- The unit will automatically operate in 7 minutes even if the room temperature is not reached. (Prevention of raising the humidity)

Anti-freezing Control If temperature of evaporator is lower than 2C continuously for 4 minutes, the compressor will cease to prevent the evaporator from freezing. Fan speed setting will not be changed. When temperature of compressor will restart. evaporator reaches 10C,

During Cooling Mode Operation, the Time Delay Safety Control is available.

Anti-reversing Control If the compressor has been continuously running for 5 minutes, and the difference of temperature between intake air and evaporator is continuously lower than 2.5C for 2 minutes, the compressor is ceased for 3 minutes then restarts. (Time Delay Protection Control is effective.)

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Automatic Fan Speed Mode

During Cooling Mode Operation, use remote control to select Automatic Fan Speed. Fan speed will be at the point between "high speed" and "medium speed". Deodorization control.

Time Graph for cooling Operation

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CS-PC9CKV CU-PC9CKV / CS-PC12CKV CU-PC12CKV

7.2.

Soft Dry Mode Operation

When selecting Soft Dry mode operation, the operation will be cooling until the room temperature reaches the set temp on the remote control, and then Soft Dry will be activated. (During Soft Dry Mode the fan of indoor unit will operate at super low speed.) Once soft Dry mode operation is turned off, indoor fan, compressor and outdoor fan will stop for 6 minutes. Time Delay Safety Protection During cooling mode operation, if the compressor ceased, it will not restart within 3 minutes.

Anti Freezing Control Same as the denotation in Cooling Operation. (P.15) (During Soft Dry Mode Operation, compressor will stop for at least 6 min.)

Anti-reverse Control Same as the denotation in Cooling Operation. (P.15)

Automatic Fan Speed During Soft Dry Operation, use remote control to select Auto Fan Speed mode. Indoor Fan Speed is at super low. Deodorization control.

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Time Graph for soft dry operation

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7.3.

Automatic Mode Operation

Standard for determining operation mode

First Determination:

Second Determination: One hour after the above determination, the unit will operate according to the table below.

1. Indoor fan operates at super low speed for 20 seconds. 2. After judging indoor air temperature, the operation is determined and operation continued at the mode determined. 3. After the operation mode has been determined, the mode does not change. However, Soft Dry mode operation includes cooling mode operation. 4. If automatic mode operation is started while the unit is operating, operation will continue. If current operation is in cooling mode (including the cooling mode operation when is a part of Soft Dry mode operation) it will be maintained, and if current operation is not cooling mode, the appropriate operation mode is determined for 20 seconds at super slow fan speed. Then the selected mode will continue. 5. Room temperature adjustment

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7.4.

Air Circulation Mode Operation

1. An additional heater may make the warm air evenly covering each corner of the room. 2. When the temperature near the ceiling reaches the setting temperature, Air Circulation Mode Operation commences at low airflow volume. It stops when the temperature drops to 2C below the setting temperature. 3. The vertical airflow direction louver will not swing.

Time graph for Air Circulation Mode Operation

7.5.

Indoor Fan Motor Control

Automatic fan speed control When automatic fan speed set,the available range for fan speed is from H to SLo Manual Fan Speed Control Basic fan speed can be manually adjusted (Lo, Med,Hi) by using the fan speed selection button.

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7.6.

Airflow Direction Control

Airflow Direction Auto-control When set at airflow direction auto-control with remote control, the louver swings up and down as shown in the table below. The louver does not swing when the indoor fan stops during operation. When stop the unit with remote control,the discharge vent is closed with the louver. When temperature of indoor heat exchanger reaches 38C during heating mode operation, if temperature falls to 35C, airflow direction will change from the lower limit to horizontal.

The left and right airflow direction louver can be adjusted manually.

Airflow direction manual control When the airflow direction set button is pressed,the automatic airflow is released and the airflow direction louver moves up and down as shown in the table below. The louver can be stopped by releasing the button at the desired position. When the remote control is used to stop the operation,the discharge vent is closed with airflow direction louver.

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8 Installation
8.1. Before Installation
WARNING

Engage dealer or specialist for installation. If installation done by the user is defective, it will cause water leakage, electrical shock or fire. Use the specified cable(1.5mm2) and connect tightly for indoor/outdoor connection. Power supply connection to a circuit breaker for the permanent connection. Use an approved 16A circuit breaker for the permanent connection. It must be a double pole switch with a minimum 3 mm contact gap. The unit must be earthed, or it will cause fire or electric shock.

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 2.3m. 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 common length, additional refrigerant should be added.

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8.2.

Outline of installation

Installation works

Installation parts

Required tools

1. Installation of indoor, outdoor unit 1) Select best location........P.25 2) Indoor unit installation........P.26

Installation plate 4 wooden screws 4 anchor bolts

A level gauge Philips screw driver Electric drill hole-core drill (70mm) Slide cutter or electrical pliers

2. Piping and drainage of indoor unit 1) Preparation of piping........P.27 2) Connection of piping........P.28 For the right piping........P.28 For the left side piping........P.29

Gas side............. .......3/8" Liquid side............. ...1/4" Insulated drain hose Insulation materials

Pipes:

Flaring tools set Specified torque wrenches 18N.m.......Liquid side piping 42N.m.......Gas side piping Spanner.......Half union

3. In case of Embedded Piping For the embedded piping........P.31

Pipes:

Gas side............. .......3/8" Liquid side............. ...1/4" Insulated drain hose Insulation materials

Flaring tools set Specified torque wrenches 18N.m.......Liquid side piping 42N.m.......Gas side piping Spanner.......Half union

4. Connecting piping and cable to the outdoor unit 1) Connecting the piping to outdoor unit........P.32 2) Connect the cable to the outdoor unit........P.32

Additional drain hose (Outer diameter......1.55mm) Connecting cable Locally approved cable

Specified torque wrenches 18N.m.......Liquid side 42N.m.......Gas side

5. Checking the drainage and connecting the cable to indoor unit 1) Checking the drainage........P.33 2) Connecting the cable to the indoor unit........P.34

Connecting cable Locally approved cable

A glass of water Phillips screw driver

6. Test Running 1) Connect the power supply........P.35 2) Evaluation of the performance........P.35

Circuit breaker or time delay fuse (consult an electrician) Operating instructions Thermometer

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8.3.
8.3.1. 8.3.1.1.

Installation of indoor, outdoor unit
Select best location Indoor unit 8.3.1.3.
Model PC9CKV PC12CKV

Piping length and elevation
Piping size Gas Liquid 3/8" 1/4" 1/2" 1/4" Max piping length(m) 7 7 Max elevation(m) 5 5

There should not be any heat source of steam near the unit. There should not be any obstacles to prevent the air circulation. A place where air circulation will be good. A place where drainage can be easily obtained. A place where noise prevention is taken into consideration. Do not install the unit near the doorway. Ensure the spaces indicated by arrows from the wall, ceiling, fence, or other obstacles. From the floor, the height should be more than eye-level.

8.3.1.2.

Outdoor unit

If an awning is built over the unit to prevent direct sunlight or rain exposure, be careful that heat radiation from the condenser is not restricted. There should not be any animals or plants which could be affected by hot air discharged. Ensure the spaces indicated by arrows from the wall, ceiling, fence, or other obstacles.

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CS-PC9CKV CU-PC9CKV / CS-PC12CKV CU-PC12CKV

8.3.2.

Indoor unit installation

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

8.3.2.1.

Mount the installation plate on the wall with four installation plate fixing screws.

(If mounting the unit on the concrete wall, consider using anchor bolts.) Always mount the installation plate horizontally by aligning the mark-off line with the thread and use a level gauge.

8.3.2.2.

Drill the piping hole with 70mm hole-core drill.

Line according to the arrows marked on the lower left and right side of the installation plate.

To drill a hole in the wall and install a sleeve for tube ass'y Drill a 70mm hole sloping downward toward the outside of the wall. Insert the sleeve for tube ass'y through the hole. Fix the bushing to the sleeve. Extrude 15mm of the sleeve then cut. Caution
When the wall is horrow, please be sure to use the sleeve for tube ass'y to prevent dangers caused by mice biting the connecting cable.

Finish by sealing the sleeve with putty or caulking compound at the final stage.

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8.4.
8.4.1. 8.4.1.1.

Piping and drainage of indoor unit
Preparation of piping Cut the pipes and the cable 8.4.1.3. Flaring the pipe
Insert the flare nuts, mounted on the connection ports of both indoor and outdoor unit, onto the copper pipes. Fit the copper pipe end into the bar of flare tool about 0.51.5mm higher. (see Fig.A) Flare the pipe ends.

Use the accessory piping kit or pipes purchased locally. Measure the distance between the indoor and the outdoor unit. Cut the pipes a little longer than measured distance. Cut the cable a 1.5m longer than the pipe length.

Fig.A Model PC9CKV PC12CKV Gas side 3/8" 1/2" Pipe size Liquid side 1/4" 1/4"

8.4.1.4.

Tape the flaring portion to protect it from dust or damage.

8.4.1.2.

Remove burrs

Remove burrs from cut edges of pipes. Turn the pipe end down to avoid the metal powder entering the pipe. Caution
If burrs are not removed, they may cause a gas leakage

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8.4.2.

Connection of piping

Remove the indoor piping Pull the tube out of chassis.

For the right piping 1. Pull the tube out of chassis. 2. Insert the tube and drain hose into the hole. 3. Insert the connecting cable into the indoor unit through the hole. Do not connect the unit to power supply. Make a small loop with the cable for easy connection later. 4. Tape the tube, drain hose and cable.

5. Indoor unit installation Hook the indoor unit onto the upper portion of installation plate. (Engage the two hooks of the rear top of the indoor unit with the upper edge of the installation plate.) Ensure the hooks are properly seated on the installation plate by moving it left and right.

6. Connecting the piping to the indoor unit Align the center of the piping and sufficiently tighten the flare nut with fingers. Finally, tighten the flare nut with torque wrench until the wrench clicks. When tightening the flare nut with torque wrench, ensure the direction for tightening follows arrow on the wrench.
Model PC9CKV/ PC12CKV PC9CKV PC12CKV Piping size Liquid side 1/4" Gas side 3/8" Gas side 1/2" Torque 18N.m 42N.m 55N.m

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3. Insert the connecting cable into the indoor unit Do not connect the cable to the indoor unit. For the left side piping 1. Route the indoor tubing with the drain hose to the hole. Pull out the drain hose. Exchange the hose and cap. Make a small loop with the cable for easy connection.

4. Indoor unit installation Hook the indoor unit onto the upper portion of installation plate. (Engage the two hooks of the rear top of the indoor unit with the upper edge of the installation plate.) Ensure the hooks are properly seated on the installation plate by moving it left and right.

2. Insert the piping and connecting cable to indoor side through the hole.

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7. Tape the piping, drain hose and connecting cable.

5. Connecting the piping to the indoor unit Align the center of the piping and sufficiently tighten the flare nut with fingers. Finally, tighten the flare nut with torque wrench until the wrench clicks. When tightening the flare nut with torque wrench, ensure the direction for tightening follows arrow on the wrench.
Model PC9CKV/ PC12CKV PC9CKV PC12CKV Piping size Liquid side 1/4" Gas side 3/8" Gas side 1/2" Torque 18N.m 42N.m 55N.m

6. Set the piping and the connecting cable to the back of chassis with the clamping cover.

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8.5.

In case of embedded Piping

8.5.6.

Connecting the piping

For the embedded piping Follow the same procedure for left rear and left piping.

Refer to the section "connecting the piping" in the directions for the indoor unit. (Connecting the piping to the outdoor unit and checking the gas leakage.)

8.5.1.

Replace the drain hose

8.5.2.

Bend the embedded piping 8.5.7. Connecting the cable to the indoor unit

Use a spring bender or equivalent to bend the piping so that the piping is not crushed.

The cable can be connected without removing the front grille.

8.5.3. 8.5.4.

Install the indoor unit. Cut and flaring the embedded piping 8.5.8.

Fig.a

Install the indoor unit fixly. [REFERENCE Fig.a, Fig.b]

When determining the dimensions of the piping, slide the unit all the way to the left on the installation plate. Refer to the section "cut and flaring the piping" in the directions for the outdoor unit. (see P.27)

8.5.5.

Pull the connecting cable into the indoor unit.

Fig.b

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8.6.
8.6.1.

Connecting piping and the cable to outdoor unit
Connecting the piping to outdoor unit 8.6.2. Connect the cable to the outdoor unit

1. Align the centre of the piping and sufficiently tighten the flare nut with fingers. 2. Finally tighten the flare nut with torque wrench until the wrench clicks. When tightening the flare nut with torque wrench, ensure the direction for tightening follows the arrow of the wrench.
Model PC9CKV/ PC12CKV PC9CKV PC12CKV Piping size Liquid side 1/4" Gas side 3/8" Gas side 1/2" Torque 18N.m 42N.m 55N.m

1. Remove the control board cover or top plate of the outdoor unit (for PC9CKV only) from the unit by loosening the screw. 2. Connecting cable between indoor unit and outdoor unit shall be approved polychloroprene sheathed 3 x 1.5 mm2 flexible cord, type designation 245 IEC 57 or heavier cord.

Caution
When connecting the piping,always use a torque wrench.Other tools may cause damage to the flare nut because of improper force.

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.

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8.7.
8.7.1.

Checking the drainage and connecting the cable to indoor unit
Checking the drainage

1. Remove the front grille from the cabinet When removing the front grille for maintenance purposes, etc, carry out by the following procedures. a. Set the vertical airflow direction louver (1) to the horizontal position. b. Remove the two caps on the front grille as shown in the illustration at right,and then remove the two mounting screws. c. Pull the lower section of the front grille toward 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 by steps 3 and 2 in that order. At this time check to sure that the fixing tabs on the top inside edge of the front grille are securely inserted into the respective slots.

2. Checking the drainage Pour a glass of water into the drain traystyroform. Ensure water flows out from drain hose of indoor unit.

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8.7.2.

Connecting 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 x 1.5mm2 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 indoors respectively. Earth lead wire shall be longer than the other lead wires as shown in the figure for the electrical safety in case of the slipping out of the cord from the anchorage. AUTO SWITCH OPERATION The below operations will be performed by pressing the "AUTO" switch. 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. to below 10 sec. A "pep" sound will occur at the fifth sec., in order to identify the starting of Test Run operation 3. REMOTE CONTROLLER RECEIVING SOUND ON/OFF The ON/OFF of Remote Controller receiving sound can be changed over by pressing the "AUTO" Switch continuously for 10 sec. and above. A "pep", "pep" sound will occur at the tenth sec., in order to indicate the "ON/OFF" changed over of remote control receiving sound.

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

HOW TO TAKE OUT FRONT GRILLE Please follow the steps below to take out front grille if necessary such as when servicing. 1. Set the vertical airflow direction louver to the horizontal position. 2. Slide down the two caps on the front grille as shown in the illustration at right, and then remove the two mounting screws. 3. 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 louvre to the horizontal position and then carry out above steps 2 - 3 in the reverse order.

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8.8.
8.8.1.

Test Running
Connect the power supply

8.8.2.

Evaluation of the performance

1. Operate the air conditioner for 15 minutes. 2. Measure the temperature of the intake and discharge air. 3. Ensure the difference of temperature between the intake and discharge air is more than 8C, in cooling operation.

1. Connect the power supply cord to independent power supply. Circuit breaker is necessary. 2. Prepare the remote control Insert two batteries Remove the cover from the back of the remote control. Insert two batteries Be sure that the (+) and (-) directions are correct. Be sure that both batteries are new. Re-attach the cover. Slide the cover back into position. 3. Operate the unit at cooling mode operation for 15 minutes or more.

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CS-PC9CKV CU-PC9CKV / CS-PC12CKV CU-PC12CKV

9 2-way, 3-way Valve
2-way Valve (Liquid Side) 3-way Valve (Gas Side)

Works

Shaft Position

Shaft Position

Service Port

Shipping

Close (With valve cap)

Closed (With valve cap)

Closed (With cap)

Air purging (Installation and Reinstallation)

Open (Counter-clockwise)

Closed (clockwise)

Open (Push-pin)

Operation

Open (Counter-clockwise)

Open (With valve cap)

Closed (With cap)

Pumping down (transfering)

Closed (clockwise)

Open (counter-clockwise)

Open (Connected manifold gauge)

Evacuation (Servicing)

Open

Open

Open With vacuum pump

Charging (servicing)

Open

Open

Open (With charging cylinder)

Pressure check (Servicing)

Open

Open

Open (Connected manifold gauge)

Gas releasing (Servicing)

Open

Open

Open (Connected manifold gauge)

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CS-PC9CKV CU-PC9CKV / CS-PC12CKV CU-PC12CKV

9.1.

Evacuation of Installation

When installing an air conditioner, be sure to evacuate the air inside the indoor unit and pipes in the following procedutre. Required tools: hexagonal wrench, adjustable wrench, torque wrench, wrench to hold the joints, gas leak detector, charging set and vaccuum pump The air in the indoor unit and in the piping must be purged. If air remains in the refrigeration piping, it will affect the compressor, reduce to cooling capacity, and could lead to a malfunction.

Service port cap Be sure, using a torque wrench to tighten the service port cap (after using the service port), so that it prevents the gas leakage from the refrigeration cycle. Procedure: 1. Connect a charging hose with a push pin to the Low side of a charging set and the service port of the 3-way valve. Be sure to connect the end of the charging hose with the push pin to the service port. 2. Connect the centre hose of the charging set to a vacuum pump. 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 for approximately 10 minutes. 4. Close the valve of the Low side of the charging set and turn off the vacuum pump. Make sure that the needle in the gauge does not move after approximately 5 minutes. BE SURE TO TAKE THIS PROCEDURE IN ORDER TO AVOID GAS REFRIGERANT 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 both the 3-way valve and the 2-way valve and at a torque of 18 N'm with a torque wrench. 7. Remove the valve caps of both the 3-way valves. Position both of the valves to *open* using a hexagonal wrench (4 mm). 8. Mount valve caps onto both of the 3-way valve and the 2-way valve. Be sure to check for gas leakage. Caution
If gauge needle does not move from 0 cmHg (0MPa) to -76 cmHg (-0.1MPa) in step (3) above, take the following measures: If the leaks stop when the piping connections are tightened further, continue working from step (3). If the leaks do not stop when the connections are retightened, repair the location of the leak.

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9.2.

Pumping down

(For Re-installation)

Procedure 1. Confirm that both 2-way and 3-way valves are set to open positions. Remove the valve stem caps and confirm that the valve stems are in the open position. Be sure using a hexagonal wrench to operate the valve stems. 2. Operate the unit for 10-15 minutes. 3. Stop operation and wait for 3 minutes, then connect the charge set to the service port of the 3-way valves. Connect the charge hose with the push pin to the service port. 4. Air purging of the charge hose Open the low-pressure valve or the charge set slightly to purge air from the charge hose. 5. Set the 2-way valve to the close position. 6. Operate the air conditioner at the cooling cycle and stop it when the gauge indicates 2 kg/cm2G (0.1Mpa). If the unit cannot be operate at the cooling mode operation (weather is rather cool), press the AUTO switch on the indoor unit, so that the unit can be operated. 7. Immediately set 3-way valve to the closed position. Do this quick so that the gauge ends up indicating 1 to 3 kg/cm2G. (0.1 to 0.3 Mpa). 8. Disconnect the charge set, and mount the 2-way and 3-way valve stems nuts and service port cap. Use torque wrench to tighten the service port cap to a torque 1.8kg.m (18N.m). Be sure to check for gas leakage.

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CS-PC9CKV CU-PC9CKV / CS-PC12CKV CU-PC12CKV

9.3.

Re-air purging

(Re-installation)

Procedure 1. Connect a charging hose with a push pin to the Low side of a charging set and the service port of the 3-way valve. Be sure to connect the end of the charging hose with the push pin to the service port. 2. Connect the center hose of the charging set to a vacuum pump. 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 for approximately 10 minutes. 4. Close the valve of both Low side of the charging set and turn off the vacuum pump. Make sure that the needle in the gauge does not move after approximately 5 minutes. BE SURE TO TAKE THIS PROCEDURE IN ORDER TO AVOID GAS LEAKAGE. 5. Disconnect the charging hose from the vacuum pump. 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 measures: If the leaks stop when the piping connections are tightened further, continue working from step (3). If the leaks do not stop when the connections are retightened, repair the location of the leak.

6. Tighten the service port caps of both the 3-way valve and 2-way valve at a torque of 18 N'm with a torque wrench. 7. Remove the valve caps of both the valves. Position both of the valves to "open" using a hexagonal wrench (4 mm). 8. Mount valve caps onto both the valves.

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CS-PC9CKV CU-PC9CKV / CS-PC12CKV CU-PC12CKV

9.4.

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

(Gas leakage)

Procedure 1. Confirm that both 2-way and 3-way valves are set to the open position. 2. Connect the charge set to the service port of the 3-way valve. Leave the valve on the charge set closed. Connect the charge hose with the push pin to the service port. 3. Open the valves (low side) on the charge set and discharge the refrigerant until the gauge indicates 0.5-1kg/cm 2G (0.050.1Mpa). If there is no air in the refrigerant cycle [the pressure when the air conditioner is not running is higher than 1kg/cm2G (0.1MPa)],discharge the refrigerant until the gauge indicates 0.5 to 1kg/cm2G (0.05 to 0.1MPa).If this is the case,it will not be necessary to apply a evacuation. Discharge the refrigerant gradually, if it is discharged too suddenly, the refrigerant oil will also be discharged.

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CS-PC9CKV CU-PC9CKV / CS-PC12CKV CU-PC12CKV

9.5.

Evacuation (Installation)

(No refrigerant in the refrigeration cycle)

Procedure 1. Connect the vacuum pump to the charge sets centre hose. 2. Evacuation for approximately 1 hour. Confirm that the gauge needle has moved toward-76cmHg (-0.1Mpa) [vacuum of 4 mmHg or less]. 3. Close the valve (low side) on the charge set, turn off the vacuum pump, and confirm that the gauge needle dose not move (approximately 5 minutes after turning off the vacuum pump). 4. Disconnect the charge hose from the vacuum. Vacuum oil If the vacuum pump oil becomes dirty or depleted, replenish as needed.

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CS-PC9CKV CU-PC9CKV / CS-PC12CKV CU-PC12CKV

9.6.

Gas charging

(After evacuation)

Procedure 1. Connect the charge hose to the charging cylinder Connect the charge hose which was disconnected from the vacuum pump to the valve at the bottom of the cylinder. If you are using a gas cylinder also use a scale and reverse the cylinder so that the system can be charged with liquid. 2. Purge the air from the charge hose Open the valve at the bottom of the cylinder and use a screwdriver to press the check valve on the charge set to purge the air. (Be careful of the liquid refrigerant.) The procedure is the same if using a gas cylinder. 3. Open the valve (low side) on the charge set and charge the system with liquid refrigerant. If the system cannot be charged with the specified amount of refrigerant, it can be charge with a little at a time (approximately 150g each time) while operating the air conditioner in the cooling cycle. However, one time is not sufficient, wait approximately 1 minute and then repeat the procedure. (Pumping down pin)

This is different from previous procedures. Because you are charging with liquid refrigerant from the gas side, absolutely do not attempt to charge with large amounts of liquid refrigerant while operating the air conditioner.

4. Immediately disconnect the charge hose from the 3-way valves service port. Stopping part-way will allow the refrigerant to be discharged. If the system has been charged with liquid refrigerant while operating the air conditioner, turn off the air conditioner before disconnecting the hose. 5. Mount the valve stem nuts and the service port. Use a torque wrench to tighten the service port cap to a torque of 1.8kg. m (18N.m). Be sure to check for gas leakage.

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CS-PC9CKV CU-PC9CKV / CS-PC12CKV CU-PC12CKV

10 Disassembly of the parts
Indoor Electronic Controller Removal Procedures 1. Remove the intake grille and two caps and screws at the bottom of the front grille. Then remove the front grille by releasing the 2 hooks at the top of the front grille. (See Fig 1)

Fig 1

2. Remove the control board cover by releasing the 2 tabs at left and 2 tabs at right side of the control board cover. (Refer to Fig 2).

Fig 2

3. Release CN-FB , CN-TH, CN-STM connectors on the electronic controller and CN-DISP on the indicator, CNRCV on the receiver. (see , Fig 3)

4. Pull the electronic controller outward gently by releasing the tab on the right side. ( Fig 3)

Fig 3

5. Releasing the CN-FM connector and AC(WHT) wire and two connecting wires on RY-PWR and the electronic controller can be replaced. ( Fig 4)

Fig 4

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CS-PC9CKV CU-PC9CKV / CS-PC12CKV CU-PC12CKV

Indoor Fan Motor and Cross Flow Fan Removal Procedures 1. Remove the electronic controller. (See the previous procedure)

2. Release the drain hose and the intake air temperature sensor and piping temperature sensor and remove the discharge grille. Release the earth lead wire on the evaporator. (Fig 5)

Fig 5

3. Release the tabs and screws on the left and right side of the control board to remove the control board. (Fig 6)

Fig 6

4. Release fixing screw of the cross flow fan. (Fig 7)

Fig 7

5. Release the bearing and the fixing screws on left side of the evaporator. (Fig 8)

Fig 8

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CS-PC9CKV CU-PC9CKV / CS-PC12CKV CU-PC12CKV

6. Lift up the evaporator and remove the cross flow fan. (Fig 9 )

Fig 9

7. Remove the fan motor. (Fig 10)

Fig 10

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CS-PC9CKV CU-PC9CKV / CS-PC12CKV CU-PC12CKV

Remote control reset If the display is chaotic or can not be adjusted, use a pin to gently press reset button to reset the remote control to the original set by manufacturer.(Fig 11 )

Fig 11

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CS-PC9CKV CU-PC9CKV / CS-PC12CKV CU-PC12CKV

11 Trouble-shooting guide
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 compressor or 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.

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CS-PC9CKV CU-PC9CKV / CS-PC12CKV CU-PC12CKV

11.1. Relationship between the condition of air conditioner and pressure and electric current
Cooling mode Condition of the air conditioner Low Pressure High Pressure Electric current during operation Low Pressure Heating mode High Pressure Electric current during operation

Insufficient refrigerant (gas leakage)

Clogged capillary tube

Short circuit in the indoor unit

Insufficient compression

11.2. Diagnosis methods of a malfunction of a compressor and a 4-way valve
Nature of fault Symptom

Electric current during operation becomes approximately 80% lower than the normal level. Insufficient compressing of a compressor The discharge tube of the compressor becomes abnormally hot (normally 70~90C). The difference between high pressure and low pressure becomes almost zero.

Electric current reaches a high level abnormally, and the value exceeds the limit of an ammeter. In some cases, a breaker turns off. Locked compressor The compressor has a humming sound.

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CS-PC9CKV CU-PC9CKV / CS-PC12CKV CU-PC12CKV

12 Technical Data
Thermostat characteristics CS/CU-PC9CKV, CS/CU-PC12CKV

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CS-PC9CKV CU-PC9CKV / CS-PC12CKV CU-PC12CKV

Cooling characteristics

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CS-PC9CKV CU-PC9CKV / CS-PC12CKV CU-PC12CKV

13 Exploded View

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CS-PC9CKV CU-PC9CKV / CS-PC12CKV CU-PC12CKV

14 Replacement Parts List
CS-PC9CKV / CS-PC12CKV
No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 DESCRIPTION&NAME CHASSIS COMPLETE FAN MOTOR CROSS FLOW FAN COMPLETE EVAPORATOR DISCHARGE GRILLE COMPLETE HORIZONTAL VANE HORIZONTAL VANE AIR SWING MOTOR VERTICAL VANE CONTROL BOARD TERMINAL BOARD COMPLETE POWER SUPPLY CORD MAIN PCB RECEIVER SENSOR COMPLETE CONTROL BOARD FRONT COVER CONTROL BOARD TOP COVER INDICATOR INDICATOR PCB INDICATOR HOLDER REMOTE CONTROL COMPLETE FRONT GRILLE COMPLETE SCREW-FRONT GRILLE CAP-FRONT GRILLE AIR FILTER DRAIN HOSE INSTALLATION PLATE BAG COMPLETE OPERATION INSTRUCTIONS INSTALLATION INSTRUCTIONS Q'ty 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 2 1 1 1 1 1 1 CS-PC9CKV CWD50C1348 CWA921296 CWH02C1030 CWB30C1448 CWE20C2301 CWE24C1059 CWE24C1058 CWA98259+C CWE241137 CWH102211 CWA28C2191 CWA20C2362 CWA743360 CWA743353 CWA50C2193 CWH131175 CWH131176 CWE39C1094 CWA743205 CWD932332 CWA75C2559 CWE11C2999 XTT4+14C CWH521025F CWD001110 CWH851074 CWH36K1019 CWH82C1214 CWF564242 CWF612561 CS-PC12CKV CWA921310 CWB30C1479 CWA743430 RE *

*

*

* * *

* *

*

Note:
1.All parts are supplied from GMAC, P.R. China. 2."*" marked parts are recommended to be kept in stock.

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CS-PC9CKV CU-PC9CKV / CS-PC12CKV CU-PC12CKV

15 Exploded View

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CS-PC9CKV CU-PC9CKV / CS-PC12CKV CU-PC12CKV

16 Replacement Parts List
CU-PC9CKV
No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 DESCRIPTION&NAME BASE ASSY FAN MOTOR HOLDER-FAN MOTOR FIXING SCREW-FAN MOTOR PROPELLER FAN NUT-P.FAN COMPRESSOR MOUNT RUBBER-COMPRESSOR NUT-COMP.MOUNT CONDENSER HOLDER-COUPLING 3-WAY VALVE 2-WAY VALVE TUBE ASSY-CAPILLARY STRAINER SOUND PROOF PANEL OVER LOAD PROTECTOR HOLDER-O.L.P. TERMINAL COVER NUT FOR TERMINAL COVER CONTROL BOX COMPLETE CONTROL BOARD TERMINAL BOARD ASSY CAPACITOR-COMPRESSOR HOLDER-CAPACITOR CAPACITOR-FAN MOTOR SURFACE COVER FRONT PANEL-CABINET RIGHT BOARD LEFT BOARD Q'ty 1 1 1 4 1 1 1 3 3 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 CU-PC9CKV CWD52K1093A CWA951344 CWD541058 CWH55027 CWH03K047 CWH56053 CWB092245 CWH50055 4582065 CWB32C1329 CWH351039A CWB011236 CWB021196 CWT01C2979 CWB11025 CWH151059 CWA121212 CWH701006 CWH17006 7080300 CWH14C4089 CWH102219 CWA28K1015 DS371306CPXA CWH301033 DS441155XPQE CWE031034A CWE06K1044 CWE041090A CWE041089A RE *

*

*

*

*

Note:
1.All parts are supplied from GMAC, P.R. China. 2."*" marked parts are recommended to be kept in stock.

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CS-PC9CKV CU-PC9CKV / CS-PC12CKV CU-PC12CKV

17 Exploded View

55

CS-PC9CKV CU-PC9CKV / CS-PC12CKV CU-PC12CKV

18 Replacement Parts List
CU-PC12CKV
No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 DESCRIPTION&NAME CHASSIS ASSY FAN MOTOR BRACKET SCREW-FAN MOTOR BRACKET FAN MOTOR SCREW-FAN MOTOR MOUNT PROPELLER FAN ASSY NUT-PROPELLER FAN COMPRESSOR ANTI-VIBRATION BUSHING NUT-COMPRESSOR MOUNT CONDENSER HOLDER COUPLING ASSY 2-WAY VALVE 3-WAY VALVE OVER LOAD PROTECTOR HOLDER-O.L.P. TERMINAL COVER NUT-TERMINAL COVER SOUND PROOF BOARD CONTROL BOARD TERMINAL BOARD ASSY CAPACITOR-COMPRESSOR HOLDER-CAPACITOR CAPACITOR-FAN MOTOR CABINET FRONT PLATE CABINET COMPLETE CONTROL BOARD COVER Q'ty 1 1 2 1 3 1 1 1 3 3 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 CU-PC12CKV CWD50K2067A CWD541041 4580305 CWA951340 CWH55027 CWH00K040 CWH56032 CWB092246 CWH50055 4582065 CWB32C1222 CWH351027A CWB021024 CWB011024 CWA121172 CWH701006 CWH17006 7080300 CWH151034 CWH102026 CWA28K1048 CWA312076 CWH30165 DS441155XPQE CWE06C1013A CWE00K1051A CWH13475 RE

*

*

*

* *

Note:
1.All parts are supplied from GMAC, P.R. China. 2."*" marked parts are recommended to be kept in stock.

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CS-PC9CKV CU-PC9CKV / CS-PC12CKV CU-PC12CKV

19 ELECTRONIC CIRCUIT DIAGRAM
CS/CU-PC9CKV

CS-PC9CKV/CU-PC9CKV

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CS-PC9CKV CU-PC9CKV / CS-PC12CKV CU-PC12CKV

CS-PC9CKV/CU-PC9CKV

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CS-PC9CKV CU-PC9CKV / CS-PC12CKV CU-PC12CKV

19.1. ELECTRONIC CIRCUIT DIAGRAM (REMOTE CONTROL)
CS/CU-PC9CKV CS/CU-PC12CKV

CS-PC9CKV/CU-PC9CKV/CS-PC12CKV/CU-PC12CKV

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CS-PC9CKV CU-PC9CKV / CS-PC12CKV CU-PC12CKV

CS-PC9CKV/CU-PC9CKV/CS-PC12CKV/CU-PC12CKV

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CS-PC9CKV CU-PC9CKV / CS-PC12CKV CU-PC12CKV

How to use electronic circuit diagram

TIMER TABLE

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CS-PC9CKV CU-PC9CKV / CS-PC12CKV CU-PC12CKV

19.2. PRINT PATTERN (INDOOR PCB)
CS-PC9CKV/CS-PC12CKV

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CS-PC9CKV/CS-PC12CKV

63

Printed in China