Panasonic Cs A7gkd Cs A9gkd Cs A12gkd Series Repair Manual

							© 2006 Panasonic HA Air-Conditioning (M) Sdn. Bhd.
(11969-T). All rights reserved. Unauthorized copying and
distribution is a violation of law.
Order No. MAC0611059C8
Air Conditioner
CS-A7GKD CU-A7GKD
CS-A9GKD CU-A9GKD
CS-A12GKD CU-A12GKD
TABLE OF CONTENTS
PA G E PA G E
1 Safety Precautions-----------------------------------------------2
2 Specifications-----------------------------------------------------4
2.1. CS-A7GKD CU-A7GKD---------------------------------- 4
2.2. CS-A9GKD CU-A9GKD---------------------------------- 6
2.3. CS-A12GKD CU-A12GKD ------------------------------ 8
3Features------------------------------------------------------------10
4 Location of Controls and Components------------------11
4.1. Product Overview----------------------------------------- 115Dimensions-------------------------------------------------------12
5.1. Indoor Unit & Remote Control ------------------------ 12
5.2. Outdoor Unit ----------------------------------------------- 13
6 Refrigeration Cycle Diagram--------------------------------14
7 Wiring Connection Diagram---------------------------------17
7.1. CS-A7GK CU-A7GK / CS-A9GK CU-A9GK------- 17
7.2. CS-A12GK CU-A12GK --------------------------------- 18
8 Electronic Circuit Diagram-----------------------------------19 
						

							2 9 Printed Circuit Board------------------------------------------20
9.1. Indoor Unit (Main Printed Circuit Board) ----------- 20
9.2. Indoor Unit (Power Printed Circuit Board) --------- 22
9.3. Indicator ---------------------------------------------------- 23
10 Installation Instruction----------------------------------------24
10.1. Select The Best Location ------------------------------ 24
10.2. Indoor Unit ------------------------------------------------- 25
10.3. Outdoor Unit ----------------------------------------------- 27
11 Operation and Control-----------------------------------------30
11.1. Heating Operation---------------------------------------- 30
11.2. Cooling Operation ---------------------------------------- 31
11.3. Soft Dry Operation --------------------------------------- 32
11.4. Automatic Operation------------------------------------- 33
11.5. Operation Control ---------------------------------------- 34
11.6. Indoor Fan Speed Control ----------------------------- 41
11.7. Outdoor Fan Speed Control --------------------------- 43
11.8. Vertical Airflow Direction Control --------------------- 43
11.9. Horizontal Airflow Direction Control ----------------- 44
11.10. Powerful Operation -------------------------------------- 44
11.11. Quiet Operation ------------------------------------------- 46
11.12. Timer Control ---------------------------------------------- 4811.13. Random Auto Restart Control ------------------------ 48
11.14. Remote Control Signal Receiving Sound---------- 48
11.15. Patrol Operation------------------------------------------ 49
11.16. e-ion Operation ------------------------------------------- 52
12 Servicing Mode--------------------------------------------------55
12.1. Auto OFF/ON Button ----------------------------------- 55
12.2. Select Remote Control Transmission Code------- 55
12.3. Remote Control Button --------------------------------- 56
13 Troubleshooting Guide---------------------------------------57
13.1. Refrigeration cycle system ---------------------------- 57
14 Disassembly and Assembly Instructions--------------59
14.1. Indoor Electronic Controllers and Control
Board Removal Procedures -------------------------- 59
14.2. Indoor Fan Motor and Cross Flow Fan
Removal Procedures ----------------------------------- 61
15 Technical Data---------------------------------------------------63
15.1. Thermostat Characteristics---------------------------- 63
15.2. Operation Characteristics ----------------------------- 64
16 Exploded View and Replacement Parts List-----------76
16.1. Indoor Unit ------------------------------------------------- 76
16.2. Outdoor Unit ---------------------------------------------- 78
1 Safety Precautions
• Read the following “SAFETY PRECAUTIONS” carefully before perform any servicing.
• Electrical work must be installed or serviced by a licensed electrician. Be sure to use the correct rating of the power plug and
main circuit for the model 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 or servicing due to ignoring of the instruction will cause harm or damage, and
the seriousness is classified by the following indications.
• The items to be followed are classified by the symbols:
• Carry out test running to confirm that no abnormality occurs after the servicing. 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.
This indication shows the possibility of causing death or serious injury.
This indication shows the possibility of causing injury or damage to properties.
This symbol denotes item that is PROHIBITED from doing.
1. Engage dealer or specialist for installation and servicing. If installation or servicing 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 and servicing. 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 the 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 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 or fire at the connection point of terminal, fire or electrical shock. 
						

							
3
8.When conne cting the piping,  do n ot allow  air or  any s ubstances ot her than  the  specified refrigerant to  enter the  refrigeration  cyc le.
Ot he
rwise, this may lower t he cap acity, cause abnorma lly high pr essure in  the refriger ation cycle, and p ossibly result in explosion and
inju
ry.
 9
. It is desir able that the amount of  resid ual oil is less than 40 mg/10m.
10.Do not  modify  the length  of the  power supply  cord or use of the  exte nsion cor d, and  do n ot share  the single outlet with  other electr ical
ap pliances. Ot herwise, it  will cause fire or electrical shock.
11
.After  comple tion of the installation  serv icing confirm there is  no leak age of refr igerant  gas. It may generate toxic gas  when the
refriger
a nt contacts with  fire.
12
.V entilate if there is r efrigerant gas  leakage during operation. It  may cause toxic  gas when  the refr igerant contacts  with fir e.
1.T he equipment  must be earthed. It  may cause el ectrical shock if  grounding is n ot perfect.
2.Do  not install the  unit at place where leakage  of flammable gas may occur. In  case gas leaks and accum ulates at surround ing of theunit, it  may cause f ire.
3.Carry out drainage piping  as me ntioned in  installa tion instructions.  If dr ainage is not perfect,  water  may enter the  room and  damage
the furniture.
4. Pb free solder has a higher melting point than standard  solder; typically the melting po int is 50 - 70°F (30 -  40° C) higher. P lease usea high te mperature solder ir on. In case of the soldering  iron with temper ature cont rol, plea se set it to 700 ± 20°F  (370 ± 10°C).
Pb
 fr ee solder will tend to splash when he ated too high (a bout 1100°F / 600°C).
5.Tig hten the flare nut with torque wr ench accor ding to  specif ied metho d. If t he flare nut is over-tightene d, after a  long period,  the flare
may
 br eak and ca use refrigera nt gas leakage.
6.Do not t ouch outd oor unit  air inlet and aluminium f in. It may cause injury.
ATTENTION
1. Selection of the installation  location. Select an installa tion location  which is rigid and  strong enough to  support or hold t he unit, and select a
location
  for easy maintenan ce.
2. Power supply connection to the  conditioner.  Conn ect the  power s upply cord of the  air c onditioner to the m ains using one of the following
methods
.P ower sup ply  point s hall be t he place where there is ease for e ase for access  for the power  disconnection in case of emerg ency.
In s ome c ountries,  permanent c onnect ion of t his  room air con ditioner to  the power supply  is pr ohibite d.
1.
  Power supply connection  to the receptac le using a p ower plug. Use an  approved power plug with earth  pin for the connection to  the
sock et.
2.
  Power supply connection to a circ uit bre aker for  the permanent con nection. Use an a pproved circ uit breaker for  the perman ent
connect ion. It  must be a double pole s witch with a minimum 3.5 mm contact gap.
3. Do not  release refrigerant du ring piping  work for installation,  serv icing, reinstallation  and  dur ing rep airing a refrig eration parts. Take  care of
the  liq uid refrigera nt, it may cause frostbite.
4.Installat ion work . It  may need t wo people to carry out t he installat ion  work.
5. Do not install th is appliance in a laundry r oom or oth er location w here water may  drip fr om t he ceiling, etc. 
						

							4
2 Specifications
2.1. CS-A7GKD CU-A7GKD
ItemUnit Indoor unit Outdoor unit
Performance Test Condition JIS
C Capacity kW 2.00 - 2.00
O BTU/h 6820 - 6820
O kcal/h 1720 - 1720
L EER W/W 3.28 - 3.17
I BTU/hW 11.2 - 10.8
N Noise Level dB (A) High: 33 Low: 26 High: 46 - 47
G Power level dB High: 46 High: 61 - 62
H Capacity kW 2.10 - 2.10
E BTU/h 7160 - 7160
A kcal/h 1810 - 1810
T Cop W/W 4.20 - 4.00
I BTU/hW 14.3 - 13.6
N Noise Level dB (A) High: 36 Low: 28 High: 48 - 49
G Power level dB High: 49 High: 64 - 65
Moisture Removal l/h 1.3
(pt/h) 2.7
Air Volume Lo
m
3/m (ft3/m)Cooling; 5.9 (210)
Heating; 6.4 (230)—
Me
m
3/m (ft3/m)Cooling; 7.0 (250)
Heating; 7.0 (250)—
Hi
m
3/m (ft3/m)Cooling; 7.8 (280)
Heating; 9.0 (320)Cooling;
29.5 (1040) - 30.0 (1060)
SHi
m
3/m (ft3/m)Cooling; 9.0 (320) —
Refrigerant Control Device — Capillary Tube
Refrigerant Oil (Charged)
cm
3— ATMOS M60 or
SUNISO 4GDID (290cm3)
Refrigerant (Charged) R22 kg (oz) — 0.71 (25.0)
Dimension Height mm (inch) 280 (11 - 1/32) 510 (20 - 3/32)
Width mm (inch) 799 (31 - 15/32) 650 (25 - 19/32)
Depth mm (inch) 183 (7 - 7/32) 230 (9 - 1/16)
Net Weight kg (lbs) 9 (20) 24 (53)
Pipe Diameter Gas mm (inch) 9.52 (3/8”)
Liquid mm (inch) 6.35 (1/4”)
Height Difference m (ft) 5 (16.4)
Pipe Length Range m (ft) 3 (9.8) ~ 10 (32.8)
Additional Gas Amount g/m (oz/ft) 20 (0.2)
Refrigeration Charge Less m (ft) 7.5 (24.6)
Drain Hose Inner diameter mm 16 —
Length mm 650 —
Compressor Type — Rotary (1 cylinder)
rolling piston type
Motor Type — Induction (2-poles)
Rated Output W — 550
Fan Type Cross-flow Fan Propeller Fan
Material ASG20K1 PP Resin
Motor Type Induction (4-poles) Induction (6-poles)
Input power W 42 - 47 58 - 65
Output power W 15 30
Fan Speed Lo (Cool / Heat) rpm 780 / 840 —
Me (Cool / Heat) rpm 920 / 920 —
Hi (Cool / Heat) rpm 1030 / 1190 800 - 830 / —
SHi (Cool / Heat) rpm 1190 / — —
Heat Exchanger Fin material Aluminium (Pre Coat) Aluminium (Blue Coat)
Fin Type Slit Fin Louver Fin
Row × Stage × FPI 2 × 15 × 19 1 × 19 × 17
Size (W × H × L) mm (inch) 610 × 315 × 25.4 22 × 483 × 576
Air Filter Type Material Polypropelene —
Style One-touch — 
						

							5 1. Cooling capacities are based on indoor temperature of 27°C D.B. (80.6°F D.B.), 19.0°C W.B. (66.2°F W.B.) and outdoor air
temperature of 35°C D.B. (95°F D.B.), 24°C W.B. (75.2°F W.B.)
2. Heating capacities are based on indoor temperature of 20°C D.B. (68°F D.B.) and outdoor air temperature of 7°C D.B. (44.6°F
D.B.), 6°C W.B. (42.8°F W.B.)
Note:
• Specification are subjected to change without prior notice for further improvement.
 Item Unit
Power Source (Phase, Voltage, Cycle) ø Single Single
V 220 230
Hz 50 50
Input power Cooling W 610 630
Heating W 500 525
Starting Current A 12.4 12.4
Running Current Cooling A 2.9 2.8
Heating A 2.4 2.4
Power Factor Cooling % 96 98
Heating % 95 95
Power factor means total figure of compressor, indoor fan motor and outdoor fan motor.
Power Cord Number of core 3 (1.5mm)
Length m (ft) 2 (6)
Thermostat——
Protection Device— 2 Stage Overload Protector 
						

							6
2.2. CS-A9GKD CU-A9GKD
1. Cooling capacities are based on indoor temperature of 27°C D.B. (80.6°F D.B.), 19.0°C W.B. (66.2°F W.B.) and outdoor air
temperature of 35°C D.B. (95°F D.B.), 24°C W.B. (75.2°F W.B.)
2. Heating capacities are based on indoor temperature of 20°C D.B. (68°F D.B.) and outdoor air temperature of 7°C D.B. (44.6°F
D.B.), 6°C W.B. (42.8°F W.B.)
ItemUnit Indoor unit Outdoor unit
Performance Test Condition JIS
C Capacity kW 2.65 - 2.65
O BTU/h 9040 - 9040
O kcal/h 2280 - 2280
L EER W/W 3.19 - 3.08
I BTU/hW 10.9 - 10.5
N Noise Level dB (A) High: 36 Low: 26 High: 48 - 49
G Power level dB High: 49 High: 63 - 64
H Capacity kW 2.80 - 2.85
E BTU/h 9550 - 9720
A kcal/h 2410 - 2450
T Cop W/W 4.00 - 3.85
I BTU/hW 13.6 - 13.1
N Noise Level dB (A) High: 38 Low: 28 High: 48 - 49
G Power level dB High: 51 High: 64 - 65
Moisture Removal l/h 1.6
(pt/h) 3.4
Air Volume Lo
m
3/m (ft3/m)Cooling; 6.4 (230)
Heating; 6.9 (240)—
Me
m
3/m (ft3/m)Cooling; 7.8 (270)
Heating; 7.8 (270)—
Hi
m
3/m (ft3/m)Cooling; 9.4 (330)
Heating; 9.8 (350)Cooling;
29.5 (1040) - 30.0 (1060)
SHi
m
3/m (ft3/m)Cooling; 10.1 (360) —
Refrigerant Control Device — Capillary Tube
Refrigerant Oil (Charged)
cm
3— ATMOS M60 or
SUNISO 4GDID (350cm3)
Refrigerant (Charged) R22 kg (oz) — 0.67 (23.7)
Dimension Height mm (inch) 280 (11 - 1/32) 510 (20 - 3/32)
Width mm (inch) 799 (31 - 15/32) 650 (25 - 19/32)
Depth mm (inch) 183 (7 - 7/32) 230 (9 - 1/16)
Net Weight kg (lbs) 9 (20) 27 (60)
Pipe Diameter Gas mm (inch) 9.52 (3/8”)
Liquid mm (inch) 6.35 (1/4”)
Height Difference m (ft) 5 (16.4)
Pipe Length Range m (ft) 3 (9.8) ~ 10 (32.8)
Additional Gas Amount g/m (oz/ft) 20 (0.2)
Refrigeration Charge Less m (ft) 7.5 (24.6)
Drain Hose Inner diameter mm 16 —
Length mm 650 —
Compressor Type — Rotary (1 cylinder)
rolling piston type
Motor Type — Induction (2-poles)
Rated Output W — 750
Fan Type Cross-flow Fan Propeller Fan
Material ASG20K1 PP Resin
Motor Type Induction (4-poles) Induction (6-poles)
Input power W 42 - 47 58 - 65
Output power W 15 30
Fan Speed Lo (Cool / Heat) rpm 830 / 890 —
Me (Cool / Heat) rpm 1000 / 1000 —
Hi (Cool / Heat) rpm 1210 / 1300 800 - 830 / —
SHi (Cool / Heat) rpm 1300 / — —
Heat Exchanger Fin material Aluminium (Pre Coat) Aluminium (Blue Coat)
Fin Type Slit Fin Louver Fin
Row × Stage × FPI 2 × 15 × 19 1 × 19 × 17
Size (W × H × L) mm (inch) 610 × 315 × 25.4 22 × 483 × 576
Air Filter Type Material Polypropelene —
Style One-touch — 
						

							7 Note:
• Specification are subjected to change without prior notice for further improvement.
 Item Unit
Power Source (Phase, Voltage, Cycle) ø Single Single
V 220 230
Hz 50 50
Input power Cooling W 830 860
Heating W 700 740
Starting Current A 18 18
Running Current Cooling A 3.9 3.9
Heating A 3.3 3.3
Power Factor Cooling % 97 96
Heating % 96 97
Power factor means total figure of compressor, indoor fan motor and outdoor fan motor.
Power Cord Number of core 3 (1.5mm)
Length m (ft) 2 (6)
Thermostat——
Protection Device— 2 Stage Overload Protector 
						

							8
2.3. CS-A12GKD CU-A12GKD
1. Cooling capacities are based on indoor temperature of 27°C D.B. (80.6°F D.B.), 19.0°C W.B. (66.2°F W.B.) and outdoor air
temperature of 35°C D.B. (95°F D.B.), 24°C W.B. (75.2°F W.B.)
2. Heating capacities are based on indoor temperature of 20°C D.B. (68°F D.B.) and outdoor air temperature of 7°C D.B. (44.6°F
D.B.), 6°C W.B. (42.8°F W.B.)
ItemUnit Indoor unit Outdoor unit
Performance Test Condition JIS
C Capacity kW 3.52 - 3.54
O BTU/h 12000 - 12100
O kcal/h 3030 - 3040
L EER W/W 3.26 - 3.16
I BTU/hW 11.1 - 10.8
N Noise Level dB (A) High: 39 Low: 29 High: 48 - 49
G Power level dB High: 52 High: 63 - 64
H Capacity kW 4.00 - 4.05
E BTU/h 13640 - 13810
A kcal/h 3440 - 3480
T Cop W/W 3.67 - 3.62
I BTU/hW 12.5 - 12.3
N Noise Level dB (A) High: 40 Low: 29 High: 48 - 49
G Power level dB High: 53 High: 64 - 65
Moisture Removal l/h 2.0
(pt/h) 4.2
Air Volume Lo
m
3/m (ft3/m)Cooling; 6.1 (220)
Heating; 6.5 (230)—
Me
m
3/m (ft3/m)Cooling; 8.5 (300)
Heating; 8.5 (300)—
Hi
m
3/m (ft3/m)Cooling; 9.9 (350)
Heating; 10.0 (350)Cooling;
32.5 (1150) - 33.0 (1160)
SHi
m
3/m (ft3/m)Cooling; 10.1 (360) —
Refrigerant Control Device — Capillary Tube
Refrigerant Oil (Charged)
cm
3— ATMOS M60 or
SUNISO 4GDID (410cm3)
Refrigerant (Charged) R22 kg (oz) — 1.05 (37.1)
Dimension Height mm (inch) 280 (11 - 1/32) 540 (21 - 1/4)
Width mm (inch) 799 (31 - 15/32) 780 (30 - 23/32)
Depth mm (inch) 183 (7 - 7/32) 289 (11 - 3/8)
Net Weight kg (lbs) 9 (20) 37 (82)
Pipe Diameter Gas mm (inch) 12.70 (1/2”)
Liquid mm (inch) 6.35 (1/4”)
Height Difference m (ft) 5 (16.4)
Pipe Length Range m (ft) 3 (9.8) ~ 15 (49.2)
Additional Gas Amount g/m (oz/ft) 20 (0.2)
Refrigeration Charge Less m (ft) 7.5 (24.6)
Drain Hose Inner diameter mm 16 —
Length mm 650 —
Compressor Type — Rotary (1 cylinder)
rolling piston type
Motor Type — Induction (2-poles)
Rated Output W — 950
Fan Type Cross-flow Fan Propeller Fan
Material ASG20K1 PP Resin
Motor Type Induction (4-poles) Induction (6-poles)
Input power W 42 - 47 72 - 80
Output power W 15 31
Fan Speed Lo (Cool / Heat) rpm 800 / 860 —
Me (Cool / Heat) rpm 1120 / 1120 —
Hi (Cool / Heat) rpm 1300 / 1320 845 - 860 / —
SHi (Cool / Heat) rpm 1320 / — —
Heat Exchanger Fin material Aluminium (Pre Coat) Aluminium
Fin Type Slit Fin Louver Fin
Row × Stage × FPI 2 × 15 × 21 2 × 24 × 16
Size (W × H × L) mm (inch) 610 × 315 × 25.4 36.38 × 504 × 713:684
Air Filter Type Material Polypropelene —
Style One-touch — 
						

							9 Note:
• Specification are subjected to change without prior notice for further improvement.
 Item Unit
Power Source (Phase, Voltage, Cycle) ø Single Single
V 220 230
Hz 50 50
Input power Cooling kW 1.08 1.12
Heating kW 1.09 1.12
Starting Current A 27 27
Running Current Cooling A 5.1 5.1
Heating A 5.2 5.1
Power Factor Cooling % 96 95
Heating % 95 95
Power factor means total figure of compressor, indoor fan motor and outdoor fan motor.
Power Cord Number of core 3 (1.5mm)
Length m (ft) 2 (6)
Thermostat——
Protection Device— Inner Protector 
						

							10
3Features
• High Efficiency
• Compact Design
• Wider range of horizontal discharge air
• Air Filter with function to reduce dust and smoke
• Automatic air swing and manual adjusted by Remote
Control for vertical airflow
•Long Installation Piping
-CS/CU-A7GK, CS/CU-A9GK, long piping up to 10 meter
-CS/CU-A12GK, long piping up to 15 meter
• e-ion Air Purifying System with Patrol Sensor
- Discharged Active e-ions capture dust particles and
bring it back with a boomerang-like mechanism
•Quality Improvement
-Random auto restart after power failure for safety restart
operation
- Gas leakage protection
- Prevent compressor reverse cycle
- Inner protector to protect Compressor
- Noise prevention during soft dry operation
-Blue Coated Condenser for high resistance to corrosion
• Operation Improvement
-Quiet mode to provide quiet operation
- Powerful mode to reach the desired room temperature
quickly
- 24-hour timer setting
• Serviceability Improvement
-Removable and washable front panel