Panasonic CU-PC12DKD User manual

CS/CU-PC12DKD
CS/CU-PA12DKD
Air Conditioner
WARNING
This service information is designed for experienced repair technicians only and is not designed for use by the general public.
It does not contain warnings or cautions to advise non-techical individuals of potential dangers in attempting to service a product.
Products powered by electricity should be serviced or repaired only by experienced professional technicians. Any attempt to service
or repair the product or products dealt with in this service information by anyone else could result in serious injury or death.
1 Features 2
2 Functions 3
3 Product Specifications 6
4 Dimensions 10
5 Refrigeration Cycle Diagram 12
6 Block Diagram 13
7 Wiring Diagram 15
8 Operation Details 17
9Installation Insruction 31
10 2-way,3-way Valve
11 Disassembly of The Parts
12 Troubleshooting Guide
13 Technical Data
14 Exploded View
15 Replacement Parts List
16 Exploded View
17 Replacement Parts List
18 Electronic Circuit Diagram
CONTENTS
Page Page
Order No. GMAC0504039C3
Guangzhou Matsushita Air Conditioner Co., Ltd.
(GMAC) All rights reserved. Unauthorized copying
and distribution is violation of law.
C
R
41
48
51
53
55
56
57
58
59
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R
OFF
MODE TEMP
OFF/ON
ON
CANCEL SET
STD
TIMER
FAN SPEED AIR SWING

2
1 Features
High Efficiency
Air Quality Indicator
Comfort Environment
Air filter with function to reduce dust and smoke
Auto Restart Control
Automatically restart after power failure
12-hour Timer Setting
CS-PC12DKD / CU-PC12DKD / CS-PA12DKD / CU-PA12DKD

Operation START/STOP
Operation Mode Selection
Automatic Operation
Heating Mode Operation
(For PA12DKD)
Cooling Mode Operation
Soft Dry Mode Operation
Air Circulation Mode Operation
(For PC12DKD)
Mode
Indoor Fan Speed Selection
Low Speed
Medium Speed
High Speed
Automatic Speed
Airflow Direction Control
Horizontal Airflow Direction Control
-Auto Control
-Manual Control
Vertical Airflow Direction Manual Control
Room Temperature Setting
Temperature Setting(16 to 30 )
Auto Operation
Timer Operation Selection
Stop/Start Operation Control
(set the ON/OFF Timer hourly later)
Set /Cancel Timer Operation
Set timer/Cancel the set timer
2 Functions
Remote Control
3
OFF/ON
MODE
FAN
SPEED
AIR
SWING
TEMP
TIMER
OFF/ON
TIMER
SET/
CANCEL
OFF
MODE TEMP
OFF/ON
ON
CANCEL SET
STD
TIMER
FAN SPEED AIR SWING
Turn on/off the air conditionor
When stop the operation by pressing
OFF/ON button,the cursor key points
to OFF.
By pressing SET button for 5seconds
continuously to switch to set the sensor
sensitivity.
CS-PC12DKD / CU-PC12DKD / CS-PA12DKD / CU-PA12DKD

Indoor Unit
Demonstration Mode
When the remote control cannot be used or
for repairing and testing ,please use this
button.
Power Switch ON/OFF
Signal Receiving Sound Control
Keep pressing this button for 10seconds to turn
on or turn off the signal receiving sound.
Operation Indication Lamps
Power (green)
Timer(orange)
Lights up in operation;
Blinks during Test
Run operation and
determining Auto
Operation mode
Timer in operation
Operation Mode
Cooling/Heating/Soft Dry /Auto Operation
/ Air circulation
Time Delay Safety Control
The unit will restart operation in 3-4
minutes after each pause.
7-Minutes Time Save Control
7-minutes automatic restarting at Cooling
Operation
National
4
Keep pressing this button for 15seconds to start
or end the Demonstration Mode.
Auto Switch
Button
Air quality
Green
Orange
Red
Anti-freezing Control for the Evaporator
Cooling or Soft Dry Operation
Warm Booting Control
Indoor fan starts running when temperature
of evaporator reaches 30 or above.
When temperature of evaporator is between
30 and 34 ,indoor fan will run at Super Low
or Low speed.
When temperature of evaporator reaches 34 ,
Warm Booting Operation ends.
High,Med,Low
Auto Fan Speed
Indoor Fan Speed Control
Automatic Airflow Direction Control
The louver automatically swings up and down
Airflow Direction Manual Control
Airflow Direction Control
Delayed On-timer Control
For cooling or soft dry mode, the unit
starts 15 minutes before the set time with
the remote control, but for heating mode
30 minutes before the set time.
CS-PC12DKD / CU-PC12DKD / CS-PA12DKD / CU-PA12DKD
(For PA12DKD only)

Outdoor Unit
5
Panasonic
Anti-reverse Protection
To protect the compressor from reverse
rotation when power off suddenly.
Overload Protector
The 2-step Overload Protector is to protect
the compressor when
1)Temperature of compressor reaches
2)High temperature or current enters into the
compressor
145
60-seconds Test Operation Control
Once the compressor is activated, it does not
stop for 60 seconds. It stops immediately with
remote control ON/OFF button.
Anti-freezing operation for outdoor unit(during
Heating Mode Operation only)
Temperature of the condenser is tested by TRS.
(For PA12DKD only)
Deicing Control
Overload Protection Control
When the temperature of evaporator
reaches 51 ,outdoor fan stops,and will
restart when the temperature of evaporator
declines to 49 .
When the temperature of evaporator
reaches 65 ,compressor will stop.
4-way Valve Control
If the unit is stopped during Heating
Operation,the 4-way valve will remain in
heating mode operation for 5 minutes.
(For PA12DKD only)
(For PA12DKDonly)
CS-PC12DKD / CU-PC12DKD / CS-PA12DKD / CU-PA12DKD

6
3 Product Specifications
CS-PC12DKD / CU-PC12DKD / CS-PA12DKD / CU-PA12DKD
Cooling Capacity
Heating Capacity
Moisture Removal
Power Source
Airflow Method
Air Circulation Indoor Air (low)
Indoor Air (medium)
Indoor Air (high)
Outdoor Air
Noise Level
Electrical
Data
Piping Connection Port(Flare piping)
Piping Size(Flare piping)
Drain Hose
Power Supply Cord Length
(Number of core-wire)
Dimensions
Net Weight
Compressor
Air Circulation
Unit
kW
kW
L/h
Phase
V
Cycle
OUTLET
INTAKE
m /min
3
m /min
3
m /min
3
m /min
3
dB(A)
W
A
W/W
A
Input
Running Current
EER/COP
Starting Current
Inner Diameter
Length
Height
Width
Depth
Type
Motor Type
Rated output
type
Motor type
Fan
Speed
Low
Med
High
Rated Output
Input
Inch
Inch
Inch
Inch
mm
m
mm
mm
mm
kg
W
W
W
rpm
rpm
rpm
CS-PA12DKD CU-PA12DKD
3.35-3.40
3.80-3.85
1.80
Single
220/230
50
SIDE VIEW TOP VIEW
7.62
8.48
9.8
-
-
-
-
Cooling:high48
Heating:high49
Cooling:high39,Low32
Heating:high39,Low31
Cooling:1020-1050
Heating:1000-1030
Cooling:4.80-4.80
Heating:4.80-4.80
Cooling:3.28-3.24
Heating:3.80-3.74
22
G:half union1/2"
L:half union1/4"
G:gas side1/2"
L:liquid side1/4"
G:3-way valve1/2"
L:2-way valve1/4"
G:gas side1/2"
L:liquid side1/4"
-
-
-
-
-
-
-
m
14
0.65
1.3
3 core-wire/1.0mm2
280
799
183
9
540
780
289
34
-
-
-
Cross-flow fan
Induction(4 pole)
-
18
Rotary(1 cylinder)
Rolling piston type
Induction(2 pole)
900
Propeller fan
Induction(6 pole)
-
25
-
980 60
1090 60
1260 60
-
760 50
-

7
Specifications are subject to change without notice for further improvement.
* 60g for air purging is not included.
CS-PC12DKD / CU-PC12DKD / CS-PA12DKD / CU-PA12DKD
Heat
Exchanger
Description
Tube Material
Fin Type
FPI
Refrigerant Control Device
Refrigeration Oil
Refrigerant (R-22)
Thermostat
Protection Device
Capillary
Air Filter
Refrigerant Circulation Control Device
Compressor Capacitor
Fan Motor Capacitor
Unit CS-PA12DKD CU-PA12DKD
Length
Circulation
Inner Diameter
mm
(c.c)
g
mm
L/min
mm
F,V
F,V
Evaporator
Copper
Slot type
(Plate fin configuration,forced draft)
2x15 2X24
Condenser
Copper
Corrugation type
21
610x252x25.4
-
-
-
-
-
-
-
Electronic Control
P.P. Honeycomb
-
21
Capillary Tube
1060(*)
-
O.L.P.(230V,37A)
545 10
12.5 0.2
1.5
F,1.8 400VF , 400V
Dimensions
Rows/Stage
Capillary
F,30 370V
1.5
X504x36.38
SUNISO 4GDID or ATMOS
M60 or ATMOS 56M
735.8
715.1
609 10
10.0 0.2
1.5

8
CS-PC12DKD / CU-PC12DKD / CS-PA12DKD / CU-PA12DKD
Cooling Capacity
Moisture Removal
Power Source
Airflow Method
Air Circulation Indoor Air (low)
Indoor Air (medium)
Indoor Air (high)
Outdoor Air
Noise Level
Electrical
Data
Piping Connection Port(Flare piping)
Piping Size(Flare piping)
Drain Hose
Power Supply Cord Length
(Number of core-wire)
Dimensions
Net Weight
Compressor
Air Circulation
Unit
kW
L/h
Phase
V
Cycle
OUTLET
INTAKE
m /min
3
m /min
3
m /min
3
m /min
3
dB(A)
W
A
W/W
A
Input
Running Current
EER
Starting Current
Inner Diameter
Length
Height
Width
Depth
Type
Motor Type
Rated Output
Type
Motor Type
Fan
Speed
Low
Med
High
Rated Output
Input
Inch
inch
Inch
inch
mm
m
mm
mm
mm
kg
W
W
W
rpm
CS-PC12DKD CU-PC12DKD
3.50-3.55
1.80
Single
220/230
50
SIDE VIEW TOP VIEW
7.65
8.26
9.7
-
-
-
-
High48
High39,Low32
1020-1050
4.80-4.80
3.43-3.38
23
G:half union1/2"
L:half union1/4"
G:gas side1/2"
L:liquid side1/4"
G:3-way valve1/2"
L:2-way valve1/4"
G:gas side1/2"
L:liquid side1/4"
-
-
-
-
-
-
-
m
14
0.5
1.3
3 core-wire/1.0mm2
280
799
183
9
540
780
289
32
-
-
-
Cross-flow fan
Induction(4 pole)
-
18
1010 60
1090 60
1280 60
Rotary(1 cylinder)
Rolling piston type
Induction(2 pole)
900
Propeller fan
Induction(6pole)
-
25
-
-
760 60
-
rpm
rpm

Specifications are subject to change without notice for further improvement.
* 60g for air purging is not included.
9
CS-PC12DKD / CU-PC12DKD / CS-PA12DKD / CU-PA12DKD
Heat
Exchanger
Description
Tube Material
Fin Type
FPI
Refrigerant Control Device
Refrigeration Oil
Refrigerant (R-22)
Thermostat
Protection Device
Capillary
Air Filter
Refrigerant Circulation Control Device
Compressor Capacitor
Fan Motor Capacitor
Unit CS-PC12DKD CU-PC12DKD
Length
Circulation
Inner Diameter
mm
(c.c)
g
mm
L/min
mm
F, V
F, V
Evaporator
copper
slot type
(Plate fin configuration,forced draft)
2x15 2x24
Condenser
copper
Corrugation type
21
610x252x25.4
-
-
-
-
-
-
-
Electronic Control
P.P Honeycomb
21
735.8x504x25.4
Capillary Tube
SUNISO 4GDID or
ATMOS M60(M56)
760(*)
O.L.P.(37A/230V)
-
Capillary
-F,
30 370V
F,1.8 440VF,1.5 400V
Dimensions
Rows/Stage
350 10
15.0 0.2
1.5

4 Dimensions
Indoor Unit
10
CS-PC12DKD / CU-PC12DKD / CS-PA12DKD / CU-PA12DKD
B
A
254
(631)
(382) (118)
(131)
95
61
165
49
(420) (50)
Front View
<Back View> Installation Plate Hook
Gas Side
Liquid
Side
Drain Port
790
Air intake
280
49
61
5
Side view
183
Air outlet
Left Piping
Hole
Right Piping
Hole
(100)
OFF
MODE TEMP
OFF/ON
ON
CANCEL SET
STD
TIMER
FAN SPEED AIR SWING
125
16.5
56
Unit : mm
Installation plate (Front View)

Outdoor Unit
Unit : mm
11
CS-PC12DKD / CU-PC12DKD / CS-PA12DKD / CU-PA12DKD
More
than 10cm
More than 100 cm
780 48
570
34.5
289
540
18
320
352
16
291
274
INVERTER
More
than 10cm
<Front View> <Side View>
<Top View>

CS/CU-PA12DKD
5 Refrigeration Cycle Diagram
INTAKE AIR
SENSOR
INTAKE AIR
SENSOR
PIPING
SENSOR
PIPING
SENSOR
PIPING
SENSOR
PIPING
SENSOR
CS/CU-PC12DKD
AIR QUALITY
SENSOR
12
CS-PC12DKD / CU-PC12DKD / CS-PA12DKD / CU-PA12DKD
INTAKE AIR
SENSOR
PIPING
SENSOR
4-way valve
PIPING
SENSOR
AIR QUALITY
SENSOR
Cooling
Heating

CS-PA12DKD/CU-PA12DKD
6 Block Diagram
FM
FM
2
CR201
3
4
1
RY-HOT
SSR202
SSR201
FUSE RY-PWR
OUTDOOR UNIT
Receiver
Remote
Control
FM
4-Valve
Compressor
Sensor
Indicator
Piping Sensor
O.L.P.
INDOOR UNIT
13
POWER SUPPLY
AC220V-230V 50Hz
CS-PC12DKD / CU-PC12DKD / CS-PA12DKD / CU-PA12DKD

FM
SSR201
SC
FUSE RY-PWR
FM
Compressor
CS-PC127DKD/CU-PC12DKD
Receiver
Remote
Control
Sensor
Indicator
14
POWER SUPPLY
AC220V-230V 50Hz
CS-PC12DKD / CU-PC12DKD / CS-PA12DKD / CU-PA12DKD
O.L.P.

CS-PA12DKD/CU-PA12DKD
7 Wiring Diagram
15
CS-PC12DKD / CU-PC12DKD / CS-PA12DKD / CU-PA12DKD
COMPRESSOR TERMINAL
BR
BL
W
R
B
B
Y/G
INDOOR UNIT
TERMINAL BOARD
FUSE
102 250V 3A
YW
B
B
B
Y
Y
R
Y/G
CAPACITOR
CAPACITOR
R
COMPRESSOR
FAN MOTOR
SENSOR(PIPING TEMP.)
Y/G
FUSE
ELECTRONIC CONTROLLER
1
3
5
B
R
Y
W
BR
BL
SENSOR(PIPING TEMP.)
INDOOR UNIT
POWER SUPPLY
CORD
POWER SUPPLY
CORD
AC 220V/230V, 50Hz
AC 220V/230V, 50Hz
STEPPING
MOTOR
OUTDOOR UNIT
TERMINAL BOARD
1(L) 2(N) 3 4
1(L) 2(N) 3 4
OUTDOOR UNIT
R : RED
BL : BLACK
B : BLUE
BR : BROWN
O : ORANGE
GRY : GREY
G : GREEN
Y : YELLOW
W : WHITE
Y/G : YELLOW/GREEN
P : PINK
YELLOW
RED
S
BLUE
R
C
TRADE MARK
AUTO SWITCH
FAN MOTOR
Indicator
Complete
Wireless
Remote Control
C-R
C-S
INDOOR FAN MOTOR RESISTANCE( )
CONNECTING
Y-B M
Y-R A
CS-PA12DKD
CWA921098
324
290.5
COMPRESSOR RESISTANCE( )
CONNECTING CWB092281
2.803
4.420
CU-PA21DKD
CWA951440
Y-B
Y-R
OUTDOOR FAN MOTOR RESISTANCE( )
CONNECTING
272
248
CU-PA21DKD

CS-PC12DKD/CU-PC12DKD
16
CS-PC12DKD / CU-PC12DKD / CS-PA12DKD / CU-PA12DKD
Wireless
Remote Control
Indicator
Complete W
W
W
W
W
W
W
W
W
W
W
ELECTRONIC CONTROLLER BR
R
O
Y
P
B
R
Y
W
BR
BL
SENSOR(PIPING TEMP.)
AUTO SWITCH
BY/G
WAC(WHT)
THERMAL FUSE
102 (250V 3A)
Y/G
VENTILATION SIGNAL
TRANSMITTER(PURCHASE
ON SELECTION) INDOOR UNIT
OUTDOOR
UNIT
STEPPING
MOTOR
FAN MOTOR
O.L.P
Y
Y
FAN
MOTOR
B
RCAPACOTOR
COMPRESSOR
B
B
RY/G
Y
CAPACOTOR COMPRESSOR TERMINAL
YELLOW
RED
S
BLUE
R
C
TRADE MARK
R : RED
BL : BLACK
B : BLUE
BR : BROWN
O : ORANGE
GRY : GREY
G : GREEN
Y : YELLOW
W : WHITE
Y/G : YELLOW/GREEN
P : PINK
POWER SUPPLY
CORD
POWER SUPPLY
CORD
AC 220V/230V 50Hz
AC 220V/230V 50Hz
C-R
C-S
INDOOR FAN MOTOR RESISTANCE( )
CONNECTING
Y-B M
Y-R A
CS-PC12DKD
CWA921098
COMPRESSOR RESISTANCE( )
CONNECTING CWB092281
2.803
4.420
CU-PC21DKD
CWA951423
Y-B
Y-R
OUTDOOR FAN MOTOR RESISTANCE( )
CONNECTING
272
248
CU-PC21DKD
324
290.5

17
8 Operation Details
8.1 .Cooling Mode Operation
When selecting the Cooling Mode Operation, the unit will operate according to the setting by the Remote Controller or
the control panel on the indoor unit and the operation is as the following.
Time Delay Safety Control
3 min.----If the compressor stops, it will not restart within 3 minutes.(Protection of compressor).
7 Minutes Time Save Control
7 min.----The unit will automatically operate in 7 minutes even if the room temperature is not reached.
(Prevention of raising the humidity)
Evaporator
Temperature
() 10
2
Restart
4 minutes
Compressor ceases
Time
Anti-Freezing Control
If temperature of evaporator is lower than 2 continuously
for 4 minutes, the compressor will cease to prevent the
evaporator from freezing. Fan speed setting will not be
changed.
When temperature of evaporator reaches 10 ,compressor
will restart.
During Cooling Mode Operation, the Time Delay Safety
Control is available.
Indoor Fan
STOP
Slow Slow
STOP STOP
Slow Slow
STOP
ON
Compressor ON
1 Fan speed will be at Hi till the compressor ceases (set temperature reached).
2 Fan speed will be at Me when the compressor restarts.
40 30 40 3020 160
12
Automatic Fan Speed Mode
During Cooling Mode Operation, use remote controller to select Automatic Fan Speed.
Deodorization control.
Fan speed will be at the point between "High speed" and "Medium speed".
CS-PC12DKD / CU-PC12DKD / CS-PA12DKD / CU-PA12DKD

18
Intake air temperature
Evaporater
temperature
10
2
Start
Stop
1.5
Basic Time
Comp.
Indoor Fan
Outdoor Fan
Operation Indicator
11
37
Operation status
Time delay safety control
Compressor Test control
Auto restart control
Anti-freezing Control
Time
d-g
g-h
h-o
q-t
:
:
:
:
Operate
Stop
abcdefghi j klmnopqrstuvwxyz
3
4’
1’
Time Graph for Cooling Operation
Set temperature
31
29
8.2. Soft Dry Mode Operation
When selecting Soft Dry mode operation, the operation will be cooling until the room temperature reaches the set temp on
remote control, and then Soft Dry will be activated. (During Soft Dry Mode the fan of indoor unit will operate at super low
speed. The soft dry mode will run for less than 10 minutes.)
Once Soft Dry mode operation is turned off, indoor fan, compressor and outdoor fan will stop for 6 minutes.
COOLING(OFF)
DRY(ON
DRY(OFF)
DRY
COOLING COOLING(ON)
DRY(ON)
1.5
1.0
DRY(OFF)
Operation area
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.( )
(During Soft Dry Mode Operation, compressor will stop for at least 6 min.)
P21
CS-PC12DKD / CU-PC12DKD / CS-PA12DKD / CU-PA12DKD

19
Automatic Fan Speed
During Soft Dry Operation, use remote controller to select Auto Fan Speed mode.
Indoor Fan Speed is at “Lo-”
70
T2
40
T1
Slo
Lo-
OFF
ON
OFF
10
6
70
T2
40
T1
10
Slo Slo
Lo-
ON
OFF OFF OFF
Indoor
fan
Compressor
Time Graph for soft dry operation
abcdef g hi jklmnopq rst u
Evaporator
temperature
10 C
o
2C
o
Basic Time
Comp.
Indoor Fan
Outdoor Fan
Operation Indicator
666
1
61 1 4
Operation status
Time
Operate
Stop
Cooling mode operation
Soft Dry Mode operation
Super
Low
Super
Low
Super
Low
Super
Low Low
1.5
Cooling mode operation activated
Intake Air temp
1.0
Cooling mode operation stopped
Soft mode operation activated
Soft dry mode operation stop
Cooling Mode Operation
Soft Dry Mode Operation
Soft Dry Mode Operation Stopped
Compressor Test Operation Control
Anti Freezing Control
a-c,p-r
c-p,r-u
e-f
j-l
q-t
:
:
:
:
:
Slo Slo Slo Slo Slo Slo Slo Slo Slo Slo Slo
4-way Valve
CS-PC12DKD / CU-PC12DKD / CS-PA12DKD / CU-PA12DKD

8.3. Heating Mode Operation(Only for PA12DKD)
When selecting the Heating Mode Operation, the unit will operate according to the setting by the Remote Controller and
the operation is as the following.
Time Delay Safety Control
Over Load protection Control
When temperature of indoor heat exchanger rises to 51 , outdoor fan will stop
when temperature of indoor heat exchanger falls to 49 , outdoor fan will restart.
When temperature of indoor heat exchanger rises to 65 or above, compressor stops, and will restart 4 minutes later.
4-way valve control
Anti-reversing Control
If the compressor stopped by switching off, turning off by remote controller, or power off, it will not restart within 3 minutes.
When room temperature reaches the set temperature on the remote controller, compressor stops and will not restart within
4 minutes.
3 minutes after the compressor stopped, indoor fan will stop for 1 minute. Then indoor fan will resume operation with the
speed at ”super low”.
Compressor
Stops
Compressor Restarts
4 minutes later
Indoor Heat Exchanger 65
Compressor
Stops
Compressor Restarts
3 minutes later
Compressor runs 5 min
T 5 last for 2 min
T= intake air temperature - evaporator temperature
If the compressor has been continuously running for 5 minutes or longer, and the difference of temperature between
intake air and evaporator is continuously lower than 5.0 or below for 2 minutes, the compressor will stop , and then
restart 3 minutes later.(Time Delay Protection Control is effective.)
During heating mode operation,4-way valve is at open mode.
During heating mode operation,if the unit turned off, the 4-way valve will remain
at open mode for 5 minutes.
Low
Super Low
Super Low
Indoor Fan
Stop
Indoor Fan
Stop
Indoor Heat
Exchanger
Indoor Heat
Exchanger
34
30
()
()
Warm Booting Control
When turning on the unit by heating mode operation,indoor fan
will be activated when temperature of indoor heat exchanger
reaches 30 . (See the figure on the right)
Warm boot operation ends when temperature of indoor heat
exchanger reaches 34 .
20
CS-PC12DKD / CU-PC12DKD / CS-PA12DKD / CU-PA12DKD