Panasonic CS-A12CTP User manual

1 Functions 2
2 Product Specifications 5
3 Dimensions 11
4 Refrigeration Cycle Diagram 13
5 Block Diagram 15
6 Wiring Diagram 17
7 Operation Details 19
8 Operating Instructions 35
9 Installation Instructions 39
10 Servicing Information 50
© 2003 Matsushita Industrial Corp. Sdn. Bhd.
(11969-T). All rights reserved. Unauthorized copying
and distribution is a violation of law.
CS-A12CTP CU-A12CTP5
CS-A18CTP CU-A18CTP5
CS-A24CTP CU-A24CTP5
11 Troubleshooting Guide 51
12 Technical Data 53
13 Exploded View 55
14 Replacement Parts List 56
15 Exploded View 57
16 Replacement Parts List 58
17 Exploded View 59
18 Replacement Parts List 60
19 Electronic Circuit Diagram 61
Room Air Conditioner
CONTENTS
Page Page
Order No. MAC0301002C8

1 Functions
MODE SLEEP
FANSPEED
RESET
TIMER
AUTO
MANUAL
AUT
AUT
O
HEA
HEA
T
COOL
COOL
DR
DR
Y
FAN
AN
SPEED
SPEED
H
H
OFF OFF ON
ON
AB
AB
TEMP OFF/ON
AIR SWING
SELECTSET/CANCEL
Remote Control
Operation OFF / ON Room Temperature Setting
TEMP.
Operation Mode Selection
•AUTO Automatic Operation Mode
•HEAT Heating Operation Mode
•COOL Cooling Operation Mode
•DRY Soft Dry Operation Mode
MODE
Sleep Mode Operation OFF / ON
Indoor Fan Speed Selection
FAN SPEED
•Low Fan Speed
•Medium Fan Speed
•High Fan Speed
•AUTO Automatic Fan Speed
Airflow Direction Control
TIMER 12-hour Timer Setting
AIR SWING
•AUTO Automatic Airflow Direction
Control
•MANUAL Airflow Direction Manual
Control
Heating, Cooling, Soft Dry Operation.
• Temperature Setting (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.
•SELECT To select delay OFF Timer,
ON Timer, OFF/ON Timer
and ON/OFF Timer
•To set hours setting
•To set hours setting
•SET/CANCEL To start delay OFF and ON
timer, cancellation
OFF / ON I
Self illuminating
button
SLEEP
2
CS-A12CTP CU-A12CTP5 / CS-A18CTP CU-A18CTP5 / CS-A24CTP CU-A24CTP5

Indoor Unit
Sleep Mode Auto Control
•Indoor Fan operates refer to Indoor Fan
Speed.
•Operation stops after 8 hours.
Indoor Fan Speed Control
•High, Medium and Low.
•Automatic Fan Speed Mode
–Heating : Fan speed varies from Me →
SSLo in accordance with
indoor heat exchanger.
–Cooling : Fan rotates at Hi, Me and
SLo speed.
–Soft Dry : Fan rotates at Lo- speed.
•Automatic air swing and manual adjusted
by remote control for vertical airflow.
•Manually adjusted by hand for horizontal
airflow.
Airflow Direction Control
Automatic Operation Button
•Press for < 5s to operate Automatic
operation mode.
(Used when the remote control cannot be used.)
•Press continuously for 5s or < 10s to
operate Test Run/Pump down. “Beep”
sound will be heard at the 5th second.
(Used when test running or servicing.)
•Press continuously for 10s and above to
omit or resume the remote control signal
receiving sound. “Beep, beep”sound will
be heard at the 10th second.
AUTO
OFF / ON
Operation Indication Lamps (LED)
• POWER (Green) ......... Lights up in operation,
blinks in Automatic
Operation Mode judging,
deice operation and
hotstart.
• SLEEP (Orange) ......... Lights up in Sleep Mode
Operation.
• TIMER (Orange) ....... Lights up in Timer
Setting.
•
AIR SWING (Orange) ... Lights up in Auto Air
Swing Mode Operation.
Time Delay Safety Control
• Restarting is inhibited for appro. 3 minutes.
7 Minutes Time Save Control
•Cooling Operation only.
Anti-Dew Formation Control
•Anti-Dew Formation Control for indoor unit
discharge area.
Anti-Freezing Control
•Anti-Freezing control for indoor heat
exchanger. (Cooling and Soft Dry)
Random Auto Restart Control
•Operation is restarted randomly after
power failure at previous setting mode.
Operation Mode
•Heating, Cooling, Soft Dry and Automatic
Mode.
30 Minutes Time Save Control
•Heating Operation only.
Hot-Start Control
•At Heating Operation the indoor fan will
operate at SLo speed when indoor heat
exchanger temperature reaches 30°C.
Anti Cold Draft Control
•The indoor fan operates at SSLo when the
indoor heat exchanger temperature is low.
(During Heating mode thermal off)
3
CS-A12CTP CU-A12CTP5 / CS-A18CTP CU-A18CTP5 / CS-A24CTP CU-A24CTP5

Outdoor Unit
CU-A12CTP5
•To protect compressor from reverse
rotation when there is a instantaneous
power failure.
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.
Overload Protector
•OLP to protect the compressor for A12CT
only.
Inner protector for A18CT & A24CT only.
Compressor Reverse Rotation
Protection Control
Outdoor Fan Operation Control
A18 / 24CT
•4-pole induction motor (2 speed).
•For Cooling or Soft Dry operation
Hi-speed ............... When outdoor
temperature reaches to 31°C.
Lo-speed .............. When outdoor
temperature reaches to 29°C.
•For Heating operation
Hi-speed ............... When outdoor
temperature reaches to 13.5°C.
Lo-speed .............. When outdoor
temperature reaches to 15.5°C.
•For Over-heating Protection, the Fan is
switched ON or OFF depending on the
piping temperature and the outdoor
temperature.
A12CT
•6-pole induction motor (1 speed).
CU-A18CTP5
CU-A24CTP5
4-Way Valve Control
•When the unit is switched to “OFF”during
Heating Operation, 4-way valve stays at
Heating position for 5 minutes.
Overload Protection Control
•Outdoor fan stops when indoor heat
exchanger temperature rises to 51°C and
above, and restarts when the indoor heat
exchanger temperature drops to 49°C and
below (A12CT).
•Compressor stop when indoor heat
exchanger temperature reaches 65°C
(A12CT), 68°C (A18CT & A24CT).
(Heating Operation Only)
Deice Control
•To prevent frosting at outdoor heat ex-
changer. (Only for Heating Operation)
Compressor Protection Control
•If the outdoor fan motor is not running after
compressor starts for 50 secs., compressor
will stop. (Cooling and Soft Dry Operation
only).
4
CS-A12CTP CU-A12CTP5 / CS-A18CTP CU-A18CTP5 / CS-A24CTP CU-A24CTP5

2 Product Specifications
Unit CS-A12CTP CU-A12CTP5
Power Source Phase
V
Cycle
Single
220 - 230
50
Cooling Capacity kW
Btu/h
kcal/h
3.52 - 3.52
12,000 - 12,000
3,030 - 3,030
Heating Capacity kW
Btu/h
kcal/h
4.00 - 4.00
13,600 - 13,600
3,440 - 3,440
Moisture Removal l/h
Pint/h
2.0
4.2
Airflow Method OUTLET
INTAKE
SIDE VIEW TOP VIEW
Air Volume Indoor Air (Lo) m3/min (cfm) Cooling: 7.5 (260) - 7.5 (260)
Heating: 7.5 (260) - 7.5 (260)
—
Indoor Air (Me) m3/min (cfm) Cooling: 8.9 (310) - 8.9 (310)
Heating: 8.9 (310) - 8.9 (310)
—
Indoor Air (Hi) m3/min (cfm) Cooling: 9.7 (340) - 9.7 (340)
Heating: 9.7 (340) - 9.7 (340)
32.5 (1,150) - 33.0 (1,160)
Noise Level dB (A) Cooling: High 39 - 39; Low 33 - 33
Heating: High 39 - 39; Low 33 - 33
Cooling: High 48 - 49
Heating: High 48 - 49
Power Noise Level dB (A) Cooling: High 52 - 52
Heating: High 52 - 52
Cooling: High 62 - 63
Heating: High 64 - 65
Electrical Data Input Power WCooling: 1,090 - 1,160
Heating: 1,080 - 1,140
Running Current ACooling: 5.1 - 5.2
Heating: 5.0 - 5.1
EER W/W 3.23 - 3.03
COP W/W 3.70 - 3.51
Starting Current A16.9
Piping Connection Port
(Flare piping)
inch
inch
G ; Half Union 1/2”
L ; Half Union 1/4”
G ; 3-way valve 1/2”
L ; 2-way valve 1/4”
Pipe Size
(Flare piping)
inch
inch
G (gas side) ; 1/2”
L (liquid side) ; 1/4”
G (gas side) ; 1/2”
L (liquid side) ; 1/4”
Drain
Hose
Inner diameter mm 20 —
Length m0.6 —
Power Cord Length
Number of core-wire
m1.8
3 (1.0 mm2)
—
—
Dimensions Height inch (mm) 21 - 9/32 (540) 21 - 9/32 (540)
Width inch (mm) 40 - 1/2 (1,028) 30 - 23/32 (780)
Depth inch (mm) 7 - 7/8 (200) 11 - 13/32 (289)
Net Weight lb (kg) 40 (18) 82 (37)
Compressor Type —Rotary (1 cylinder)
rolling piston type
Motor Type —Induction (2-poles)
Rated Output kW —0.93
Air Circulation Type SIROCCO Propeller Fan
Material ABS STYLAC 181 PP
Motor Type Induction (4-poles) Induction (6-poles)
Input W69.8 - 79.0 65 - 73
Rated Output W29 33
Fan Speed Low rpm Cooling: 640 - 640
Heating: 640 - 640
—
Medium rpm Cooling: 760 - 760
Heating: 760 - 760
—
High rpm Cooling: 830 - 830
Heating: 830 - 830
835 - 845
5
CS-A12CTP CU-A12CTP5 / CS-A18CTP CU-A18CTP5 / CS-A24CTP CU-A24CTP5

Unit CS-A12CTP CU-A12CTP5
Heat Exchanger Description Evaporator Condenser
Tube material Copper Copper
Fin material Aluminium Aluminium (Blue Coated)
Fin Type Louver Fin Corrugated Fin
Row / Stage (Plate fin configuration, forced draft)
2×12 2×24
FPI 20 16
Size (W × H × L) mm 857 × 252 × 25.4 720 × 504 × 36.38
Refrigerant Control Device —Capillary Tube
Refrigeration Oil (c.c) —SUNISO 4GSI (410)
Refrigerant (R-22) g (oz.) —920 (32.5)
Thermostat Electronic Control —
Protection Device —Overload Protector
Capillary Tube Length mm —Cooling: 630, Heating: 455
Flow Rate l/min —Cooling: 6.5, Heating: 13.6
Inner Diameter mm —Cooling: 1.2, Heating: 1.5
Air Filter Material
Style
P.P.
Honeycomb
—
Capacity Control Capillary Tube
Compressor Capacitor µF, VAC —30 µF, 370VAC
Fan Motor Capacitor µF, VAC 1.5 µF, 440VAC 2.0 µF, 450VAC
• Specifications are subject to change without notice for further improvement.
6
CS-A12CTP CU-A12CTP5 / CS-A18CTP CU-A18CTP5 / CS-A24CTP CU-A24CTP5

Unit CS-A18CTP CU-A18CTP5
Power Source Phase
V
Cycle
Single
220 - 230
50
Cooling Capacity kW
Btu/h
kcal/h
5.30 - 5.30
18,100 - 18,100
4,560 - 4,560
Heating Capacity kW
Btu/h
kcal/h
6.00 - 6.00
20,500 - 20,500
5,160 - 5,160
Moisture Removal l/h
Pint/h
2.9
6.1
Airflow Method OUTLET
INTAKE
SIDE VIEW TOP VIEW
Air Volume Indoor Air (Lo) m3/min (cfm) Cooling: 8.5 (300) - 8.5 (300)
Heating: 9.1 (320) - 9.1 (320)
25.1 (890) - 26.7 (940)
Indoor Air (Me) m3/min (cfm) Cooling: 9.5 (340) - 9.5 (340)
Heating: 9.7 (340) - 9.7 (340)
—
Indoor Air (Hi) m3/min (cfm) Cooling: 10.2 (360) - 10.2 (360)
Heating: 10.4 (370) - 10.4 (370)
38.3 (1,350) - 40 (1,410)
Noise Level dB (A) Cooling: High 42 - 42; Low 37 - 37
Heating: High 42 - 42; Low 37 - 37
Cooling: High 54 - 55
Heating: High 55 - 56
Power Noise Level dB (A) Cooling: High 55 - 55
Heating: High 55 - 55
Cooling: High 67 - 68
Heating: High 68 - 69
Electrical Data Input Power WCooling: 1,890 - 2,020
Heating: 1,890 - 2,020
Running Current ACooling: 8.8 - 9.0
Heating: 8.8 - 9.0
EER W/W 2.80 - 2.62
COP W/W 3.17 - 2.97
Starting Current A44
Piping Connection Port
(Flare piping)
inch
inch
G ; Half Union 1/2”
L ; Half Union 1/4”
G ; 3-way valve 1/2”
L ; 3-way valve 1/4”
Pipe Size
(Flare piping)
inch
inch
G (gas side) ; 1/2”
L (liquid side) ; 1/4”
G (gas side) ; 1/2”
L (liquid side) ; 1/4”
Drain
Hose
Inner diameter mm 20 —
Length m0.6 —
Power Cord Length
Number of core-wire
m1.8
3 (1.5 mm2)
—
—
Dimensions Height inch (mm) 21 - 9/32 (540) 26 - 31/32 (685)
Width inch (mm) 40 - 1/2 (1,028) 31 - 1/2 (800)
Depth inch (mm) 7 - 7/8 (200) 11 - 13/16 (300)
Net Weight lb (kg) 44 (20) 132 (60)
Compressor Type —Rotary (1 cylinder)
rolling piston type
Motor Type —Induction (2-poles)
Rated Output kW —1.7
Air Circulation Type SIROCCO Propeller Fan
Material ABS STYLAC 181 AES + PC + GF15%
Motor Type Induction (4-poles) Induction (4-poles)
Input W69.8 - 79.0 105 - 130
Rated Output W29 67
Fan Speed Low rpm Cooling: 770 - 770
Heating: 810 - 810
650 - 690
Medium rpm Cooling: 870 - 870
Heating: 870 - 870
—
High rpm Cooling: 930 - 930
Heating: 930 - 930
990 - 1,030
7
CS-A12CTP CU-A12CTP5 / CS-A18CTP CU-A18CTP5 / CS-A24CTP CU-A24CTP5

Unit CS-A18CTP CU-A18CTP5
Heat Exchanger Description Evaporator Condenser
Tube material Copper Copper
Fin material Aluminium Aluminium (Blue Coated)
Fin Type Louver Fin Corrugated Fin
Row / Stage (Plate fin configuration, forced draft)
2×12
+
1×10
2×26
FPI 20 16
Size (W ×H×L) mm 857 ×252 ×25.4
+
857 ×210 ×12.7
769.2
732.9
×660.4 ×44
Refrigerant Control Device —Capillary Tube
Refrigeration Oil (c.c) —SUNISO 4GDID or ATMOS
M60 (700)
Refrigerant (R-22) kg (oz.) —1.55 (54.7)
Thermostat Electronic Control Mecha. Control
Protection Device —Inner Protector
Capillary Tube Length mm —680
Flow Rate l/min —11.5
Inner Diameter mm —1.5
Air Filter Material
Style
P.P.
Honeycomb
—
Capacity Control Capillary Tube
Compressor Capacitor µF, VAC —50 µF, 370VAC
Fan Motor Capacitor µF, VAC 1.5 µF, 440VAC 3.0 µF, 450VAC
• Specifications are subject to change without notice for further improvement.
8
CS-A12CTP CU-A12CTP5 / CS-A18CTP CU-A18CTP5 / CS-A24CTP CU-A24CTP5

Unit CS-A24CTP CU-A24CTP5
Power Source Phase
V
Cycle
Single
220 - 230
50
Cooling Capacity kW
Btu/h
kcal/h
6.40 - 6.40
21,800 - 21,800
5,500 - 5,500
Heating Capacity kW
Btu/h
kcal/h
7.50 - 7.50
25,600 - 25,600
6,450 - 6,450
Moisture Removal l/h
Pint/h
3.5
7.4
Airflow Method OUTLET
INTAKE
SIDE VIEW TOP VIEW
Air Volume Indoor Air (Lo) m3/min (cfm) Cooling: 10.5 (370) - 10.5 (370)
Heating: 11.0 (390) - 11.0 (390)
25.6 (910) - 27.4 (970)
Indoor Air (Me) m3/min (cfm) Cooling: 11.8 (420) - 11.8 (420)
Heating: 11.8 (420) - 11.8 (420)
—
Indoor Air (Hi) m3/min (cfm) Cooling: 12.9 (460) - 12.9 (460)
Heating: 12.9 (460) - 12.9 (460)
46.0 (1,620) - 47.2 (1,670)
Noise Level dB (A) Cooling: High 47 - 47; Low 42 - 42
Heating: High 47 - 47; Low 42 - 42
Cooling: High 59 - 60
Heating: High 60 - 61
Power Noise Level dB (A) Cooling: High 60 - 60
Heating: High 60 - 60
Cooling: High 72 - 73
Heating: High 73 - 74
Electrical Data Input Power WCooling: 2,600 - 2,740
Heating: 2,720 - 2,860
Running Current ACooling: 12.7 - 13.0
Heating: 13.3 - 13.6
EER W/W 2.46 - 2.34
COP W/W 2.76 - 2.62
Starting Current A66
Piping Connection Port
(Flare piping)
inch
inch
G ; Half Union 5/8”
L ; Half Union 1/4”
G ; 3-way valve 5/8”
L ; 3-way valve 1/4”
Pipe Size
(Flare piping)
inch
inch
G (gas side) ; 5/8”
L (liquid side) ; 1/4”
G (gas side) ; 5/8”
L (liquid side) ; 1/4”
Drain
Hose
Inner diameter mm 20 —
Length m0.6 —
Power Cord Length
Number of core-wire
m1.8
3 (2.5 mm2)
—
—
Dimensions Height inch (mm) 21 - 9/32 (540) 26 - 31/32 (685)
Width inch (mm) 40 - 1/2 (1,028) 31 - 1/2 (800)
Depth inch (mm) 7 - 7/8 (200) 11 - 13/16 (300)
Net Weight lb (kg) 44 (20) 139 (63)
Compressor Type —Rotary (1 cylinder)
rolling piston type
Motor Type —Induction (2-poles)
Rated Output kW —2.2
Air Circulation Type SIROCCO Propeller Fan
Material ABS STYLAC 181 AES + PC + GF15%
Motor Type Induction (4-poles) Induction (4-poles)
Input W94.2 - 104.1 190.0 - 171.3
Rated Output W51 108
Fan Speed Low rpm Cooling: 900 - 900
Heating: 940 - 940
635 - 680
Medium rpm Cooling: 1,010 - 1,010
Heating: 1,010 - 1,010
—
High rpm Cooling: 1,100 - 1,100
Heating: 1,100 - 1,100
1,140 - 1,170
9
CS-A12CTP CU-A12CTP5 / CS-A18CTP CU-A18CTP5 / CS-A24CTP CU-A24CTP5

Unit CS-A24CTP CU-A24CTP5
Heat Exchanger Description Evaporator Condenser
Tube material Copper Copper
Fin material Aluminium Aluminium (Blue Coated)
Fin Type Louver Fin Corrugated Fin
Row / Stage (Plate fin configuration, forced draft)
2×12
+
1×10
2×26
FPI 20 16
Size (W ×H×L) mm 857 ×252 ×25.4
+
857 ×210 ×12.7
769.2
732.9
×660.4 ×44
Refrigerant Control Device —Capillary Tube
Refrigeration Oil (c.c) —SUNISO 4GDID or ATMOS
M60 (1,130)
Refrigerant (R-22) kg (oz.) —2.23 (78.7)
Thermostat Electronic Control Mecha. Control
Protection Device —Inner Protector
Capillary Tube Length mm —690
Flow Rate l/min —20.0
Inner Diameter mm —1.9
Air Filter Material
Style
P.P.
Honeycomb
—
Capacity Control Capillary Tube
Compressor Capacitor µF, VAC —50 µF, 370VAC
Fan Motor Capacitor µF, VAC 3.0 µF, 440VAC 3.0 µF, 450VAC
• Specifications are subject to change without notice for further improvement.
10
CS-A12CTP CU-A12CTP5 / CS-A18CTP CU-A18CTP5 / CS-A24CTP CU-A24CTP5

3 Dimensions
11
CS-A12CTP CU-A12CTP5 / CS-A18CTP CU-A18CTP5 / CS-A24CTP CU-A24CTP5

12
CS-A12CTP CU-A12CTP5 / CS-A18CTP CU-A18CTP5 / CS-A24CTP CU-A24CTP5

4 Refrigeration Cycle Diagram
13
CS-A12CTP CU-A12CTP5 / CS-A18CTP CU-A18CTP5 / CS-A24CTP CU-A24CTP5

14
CS-A12CTP CU-A12CTP5 / CS-A18CTP CU-A18CTP5 / CS-A24CTP CU-A24CTP5

5 Block Diagram
15
CS-A12CTP CU-A12CTP5 / CS-A18CTP CU-A18CTP5 / CS-A24CTP CU-A24CTP5

16
CS-A12CTP CU-A12CTP5 / CS-A18CTP CU-A18CTP5 / CS-A24CTP CU-A24CTP5

6 Wiring Diagram
17
CS-A12CTP CU-A12CTP5 / CS-A18CTP CU-A18CTP5 / CS-A24CTP CU-A24CTP5

18
CS-A12CTP CU-A12CTP5 / CS-A18CTP CU-A18CTP5 / CS-A24CTP CU-A24CTP5

Cooling in operation according to Remote Control setting.
Time Delay Safety Control (3 minutes)
7 minutes Time Save Control
Anti-Freezing Control
• If the temperature of the indoor heat exchanger falls
continuously below 2°C for 4 minutes or more, the
compressor turns off to protect the indoor heat exchanger
from freezing. The fan speed setting remains the same.
• Compressor will restart again when the indoor heat
exchanger temperature rises to 10°C (Recovery).
3 minutes waiting of Time Delay Safety Control is valid for
Cooling Operation.
Compressor Reverse Rotation Protection Control
Anti-Dew Formation Control
7 Operation Details
7.1. Cooling Mode Operation
• When the compressor is stopped by Remote Control, it restarts after 3 minutes when it is turned ON by Remote Control.
• When the setting temperature is reached during cooling operation, the compressor stops and it will not start for 3 minutes.
• The compressor will start automatically if it has stopped for 7 minutes even if the room temperature is between the compressor
ON temperature and OFF temperature.
• 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 or less for 2 minutes, compressor will stop and restart automatically.
(Time Delay Safety Control is valid)
▲T = Intake air temperature - Indoor heat exchanger temperature
This is to protect reverse rotation of the compressor when there is a instantaneous power failure.
• Purpose is to prevent dew formation on indoor unit air discharge area.
• When the following conditions occur for 30 minutes continuously, anti-dew formation is controlled by indoor fan speed shift to
low (Changed to HLo):
− Indoor intake air temperature is more than 24°C and less than 30°C.
− Remote Control setting temperature is less than 25°C.
− Compressor is on.
− Cooling operation mode.
− Indoor Fan motor operate at Low fan speed.
• This control is cancelled immediately when above condition is changed.
19
CS-A12CTP CU-A12CTP5 / CS-A18CTP CU-A18CTP5 / CS-A24CTP CU-A24CTP5

Compressor Protection Control
Automatic Fan Speed Mode
• After the compressor starts for 50 seconds but the outdoor fan motor is still OFF, the compressor will stop and restart
automatically. (Time Delay Safety Control is valid).
• If the above phenomenon is repeated for 3 times, the compressor will stop totally.
• The above phenomenon is reset when there is a change to heating mode or stopped by Remote Control Switch.
When Automatic Fan Speed is selected at Remote Control during cooling operation.
• Fan speed rotates in the range of Hi to Me.
20
CS-A12CTP CU-A12CTP5 / CS-A18CTP CU-A18CTP5 / CS-A24CTP CU-A24CTP5