Panasonic CS-PC12TKF User manual

© Panasonic Corporation 2017.
Order No: PAPAMY1703039CE
SLEEP
SLEEP
Indoor Unit Outdoor Unit
CS-PC12TKF
CS-PC18TKF
CS-PC24TKF
CU-PC12TKF
CU-PC18TKF
CU-PC24TKF
Destination
Oman
Kuwait
Middle East
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-technical 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 products dealt with in this service information by anyone else could result in serious injury or death.
There are special components used in this equipment which are important for safety. These parts are marked by in the Schematic
Diagrams, Circuit Board Diagrams, Exploded Views and Replacement Parts List. It is essential that these critical parts should be
replaced with manufacturer’s specified parts to prevent shock, fire or other hazards. Do not modify the original design without permission
of manufacturer.
IMPORTANT SAFETY NOTICE

2
TABLE OF CONTENTS
PAGE PAGE
1.Safety Precautions .............................................3
2.Specification .......................................................5
3.Features...............................................................9
4.Location of Controls and Components..........10
4.1Indoor Unit ..................................................10
4.2Outdoor Unit ...............................................10
4.3Remote Control ..........................................11
5.Dimensions .......................................................12
5.1Indoor Unit ..................................................12
5.2Outdoor Unit ...............................................14
6.Refrigeration Cycle Diagram ...........................16
7.Block Diagram ..................................................17
7.1CS-PC12TKF CU-PC12TKF ......................17
7.2CS-PC18TKF CU-PC18TKF ......................18
7.3CS-PC24TKF CU-PC24TKF ......................19
8.Wiring Connection Diagram ............................20
8.1CS-PC12TKF CU-PC12TKF ......................20
8.2CS-PC18TKF CU-PC18TKF ......................21
8.3CS-PC24TKF CU-PC24TKF ......................22
9.Electronic Circuit Diagram ..............................23
9.1CS-PC12TKF CU-PC12TKF ......................23
9.2CS-PC18TKF CU-PC18TKF ......................24
9.3CS-PC24TKF CU-PC24TKF ......................25
10.Printed Circuit Board .......................................26
10.1Indoor Unit ..................................................26
11.Installation Instruction.....................................29
11.1Select the Best Location.............................29
11.2Indoor Unit ..................................................30
11.3Outdoor Unit ...............................................36
12.Operation Control.............................................40
12.1Cooling Operation.......................................40
12.2Soft Dry Operation......................................42
12.3Automatic Operation...................................44
12.4Indoor Fan Speed Control ..........................45
12.5Outdoor Fan Speed Control .......................47
12.6Vertical Airflow Direction Control................47
12.7Horizontal Airflow Direction Control............50
12.8JETSTREAM Operation .............................51
12.9Quiet Operation ..........................................53
12.10Timer Control..............................................54
12.11Sleep Mode Operation ...............................54
12.12Random Auto Restart Control ....................54
12.13Remote Control Signal Receiving
Sound .........................................................54
13.Protection Control............................................55
13.1Restart Control (Time Delay Safety
Control).......................................................55
13.27 Minutes Time Save Control .....................55
13.360 Seconds Forced Operation ...................55
13.4Starting Current Control .............................55
13.5Freeze Prevention Control .........................55
13.6Compressor Reverse Rotation Protection
Control ........................................................56
13.7Dew Prevention Control .............................56
14.Servicing Mode .................................................57
14.1Auto OFF/ON Button ..................................57
14.2Remote Control Button...............................58
15.Troubleshooting Guide....................................61
15.1Refrigeration Cycle System........................61
16.Disassembly and Assembly Instructions ......63
16.1CS-PC12TKF..............................................63
16.2CS-PC18TKF CS-PC24TKF .....................67
17.Technical Data ..................................................71
17.1Thermostat Characteristics ........................71
17.2Operation Characteristics...........................72
18.Exploded View and Replacement Parts
List .....................................................................78
18.1Indoor Unit ..................................................78
18.2Outdoor Unit ...............................................82

3
1. Safety Precautions
Read the following “SAFETY PRECAUTIONS” carefully before installation.
Electrical work must be installed by a licensed electrician. Be sure to use the correct rating of the power plug and main circuit
for the model to be installed.
The caution items stated here must be followed because these important contents are related to safety. The meaning of each
indication used is as below.
Incorrect installation due to ignoring of the instruction will cause harm or damage, and the seriousness is classified by the
following indications.
WARNING This indication shows the possibility of causing death or serious injury.
CAUTION This indication shows the possibility of causing injury or damage to properties only.
The items to be followed are classified by the symbols:
Symbol with white background denotes item that is PROHIBITED.
Symbol with dark background denotes item that must be carried out.
Carry out test running to confirm that no abnormality occurs after the installation. Then, explain to user the operation, care
and maintenance as stated in instructions. Please remind the customer to keep the operating instructions for future reference.
This appliance is not intended for accessibility by the general public.
WARNING
1. Do not install outdoor unit near handrail of veranda. When installing air-conditioner unit on veranda of a high rise building, child may
climb up to outdoor unit and cross over the handrail causing an accident.
2. Do not damage or use unspecified power supply cord. Otherwise, it will cause fire or electrical shock.
3. Do not use modified cord, joint cord or extension cord for power supply cord. Do not share the single outlet with other electrical
appliances. Poor contact, poor insulation or over current will cause electrical shock or fire.
4. Do not tie up the power supply cord into a bundle by band. Abnormal temperature rise on power supply cord may happen.
5. Do not insert your fingers or other objects into the unit, high speed rotating fan may cause injury.
6. Do not sit or step on the unit, you may fall down accidentally.
7. Keep plastic bag (packaging material) away from small children, it may cling to nose and mouth and prevent breathing.
8. When installing or relocating air conditioner, do not let any substance other than the specified refrigerant, eg. air etc. mix into
refrigeration cycle (piping). Mixing of air etc will cause abnormal high pressure in refrigeration cycle and result in explosion, injury etc.
9. Do not add or replace refrigerant other than specified type. It may cause product damage, burst and injury etc.
10. Engage authorized dealer or specialist for installation. If installation done by the user is incorrect, it will cause water leakage, electrical
shock or fire.
11. Install according to this installation instructions strictly. If installation is defective, it will cause water leakage, electrical shock or fire.
12. Use the attached accessories parts and specified parts for installation. Otherwise, it will cause the set to fall, water leakage, fire or
electrical shock.
13. 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.
14.
For electrical work, follow the local national wiring standard, regulation and this installation instruction. An independent circuit and
single outlet must be used. If electrical circuit capacity is not enough or defect found in electrical work, it will cause electrical shock or
fire.
15.
Do not use joint cable for indoor/outdoor connection cable. Use the specified indoor/outdoor connection cable, refer to instruction
CONNECT THE CABLE TO THE INDOOR UNIT and connect tightly for indoor/outdoor connection. Clamp the cable so that no
external force will have impact on the terminal. If connection or fixing is not perfect, it will cause heat up or fire at the connection.
16. 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 fire or electrical shock.
17.
This equipment is strongly recommended to be installed with Earth Leakage Circuit Breaker (ELCB) or Residual Current Device
(RCD), with sensitivity of 30mA at 0.1 sec or less. Otherwise, it may cause electrical shock and fire in case of equipment breakdown or
insulation breakdown.

4
WARNING
18.
During installation, install the refrigerant piping properly before running the compressor. Operation of compressor without fixing
refrigeration piping and valves at opened condition will cause suck-in of air, abnormal high pressure in refrigeration cycle and result in
explosion, injury etc.
19.
During pump down operation, stop the compressor before remove the refrigeration piping. Removal of refrigeration piping while
compressor is operating and valves are opened will cause suck-in of air, abnormal high pressure in refrigeration cycle and result in
explosion, injury etc.
20. Tighten the flare nut with torque wrench according to specified method. If the flare nut is over-tightened, after a long period, the flare
may break and cause refrigerant gas leakage.
21. After completion of installation, confirm there is no leakage of refrigerant gas. It may generate toxic gas when the refrigerant contacts
with fire.
22. Ventilate if there is refrigerant gas leakage during operation. It may cause toxic gas when the refrigerant contacts with fire.
23. This equipment must be properly earthed. Earth line must not be connected to gas pipe, water pipe, earth of lightning rod and
telephone. Otherwise, it may cause electrical shock in case of equipment breakdown or insulation breakdown.
CAUTION
1. Do not install the unit at place where leakage of flammable gas may occur. In case gas leaks and accumulates at surrounding of the
unit, it may cause fire.
2. Do not release refrigerant during piping work for installation, re-installation and during repairing a refrigeration parts. Take care of the
liquid refrigerant, it may cause frostbite.
3. Do not install this appliance in a laundry room or other location where water may drip from the ceiling, etc.
4. Do not touch the sharp aluminium fin, sharp parts may cause injury.
5. Carry out drainage piping as mentioned in installation instructions. If drainage is not perfect, water may enter the room and damage
the furniture.
6. Select an installation location which is easy for maintenance.
7.
Power supply connection to the room air conditioner.
Use power supply cord 3 × 1.5 mm2(1.5HP) or 3 × 2.5 mm2(2.0 ~ 2.5HP) type designation 60245 IEC 57 or heavier cord. Connect
the power supply cord of the air conditioner to the mains using one of the following method. Power supply point should be in easily
accessible place for power disconnection in case of emergency. In some countries, permanent connection of this air conditioner to the
power supply is prohibited.
1) Power supply connection to the receptacle using power plug.
Use an approved 15/16A (1.5HP) or 16A (2.0HP) or 20A (2.5HP) power plug with earth pin for the connection to the socket.
2) Power supply connection to a circuit breaker for the permanent connection.
Use an approved 16A (1.5 ~ 2.0HP) or 20A (2.5HP) circuit breaker for the permanent connection. It must be a double pole switch
with a minimum 3.0 mm contact gap.
9. Installation work.
It may need two people to carry out the installation work.

5
2. Specification
Model Indoor CS-PC12TKF CS-PC18TKF
Outdoor CU-PC12TKF CU-PC18TKF
Performance Test Condition ISO 5151 (T1) ISO 5151 (T1)
Power Supply Phase, Hz Single, 50 Single, 50
V 220 240 220 240
Cooling
Capacity
kW 3.52 3.54 5.28 5.28
Btu/h 12000 12100 18000 18000
kJ/h 12670 12740 19010 19100
Running Current A 5.7 5.5 9.8 10.0
Input Power W 1.21k 1.24k 1.99k 2.05k
EER W/W 2.91 2.85 2.65 2.58
Btu/hW 9.92 9.76 9.05 8.78
Power Factor % 96 94 92 85
Indoor Noise (H / L) dB-A 40 / 30 40 / 30 45 / 41 45 / 41
Power Level dB 53 / - 53 / - 58 / - 58 / -
Outdoor Noise (H / L) dB-A 51 / - 52 / - 55 / - 56 / -
Power Level dB 66 / - 67 / - 70 / - 71 / -
Max Current (A) / Max Input Power (W) 8.1 / 1.75k 13.2 / 2.89k
Starting Current (A) 30.0 44.0
Compressor
Type Hermetic Motor / Rotary Hermetic Motor / Rotary
Motor Type Induction (2 poles) Induction (2 poles)
Output Power W 1.0k 1.5k
Indoor Fan
Type Cross-Flow Fan Cross-Flow Fan
Material ASG20K1 ASG33
Motor Type DC Motor (8 poles) DC Motor (8 poles)
Input Power W 51.0 58.0 94.8 94.8
Output Power W 24 40
Speed
QLo rpm 740 880
Lo rpm 810 970
Me rpm 980 1040
Hi rpm 1150 1120
SHi rpm 1180 1200
Outdoor Fan
Type Propeller Fan Propeller Fan
Material PP Resin PP Resin
Motor Type AC / Induction (6 poles) AC / Induction (4 poles)
Input Power W 56.10 62.81 86.9 97.9
Output Power W 33 46
Speed Hi rpm 900 920 1010 1070
Moisture Removal L/h (Pt/h) 2.1 (4.2) 2.9 (6.1)
Indoor Airflow
QLo m3/min (ft3/min) 6.2 (220) 14.5 (513)
Lo m3/min (ft3/min) 6.8 (241) 16.0 (566)
Me m3/min (ft3/min) 8.3 (292) 17.2 (606)
Hi m3/min (ft3/min) 9.7 (342) 18.5 (653)
SHi m3/min (ft3/min) 10.0 (351) 19.8 (700)
Outdoor
Airflow Hi m3/min (ft3/min) 28.6 (1010) 29.2 (1030) 44.3 (1560) 46.0 (1620)
Refrigeration
Cycle
Control Device Capillary Tube Capillary Tube
Refrigerant Oil cm3ATMOS NM65M or SUNISO 4GDID (430) ATMOS NM65M or Suniso 4GDID (670)
Refrigerant Type g (oz) R22, 870 (30.7) R22, 980 (34.6)

6
Model Indoor CS-PC12TKF CS-PC18TKF
Outdoor CU-PC12TKF CU-PC18TKF
Dimension
Height (I/D / O/D) mm (inch) 290 (11-7/16) / 542 (21-11/32) 302 (11-29/32) / 619 (24-3/8)
Width (I/D / O/D) mm (inch) 799 (31-15/32) / 780 (30-23/32) 1102 (43-13/32) / 824 (32-15/32)
Depth (I/D / O/D) mm (inch) 197 (7-3/4) / 289 (11-13/32) 244 (9-5/8) / 299 (11-25/32)
Weight Net (I/D / O/D) kg (lb) 8 (18) / 35 (77) 12 (26) / 36 (79)
Piping
Pipe Diameter (Liquid / Gas) mm (inch) 6.35 (1/4) / 12.70 (1/2) 6.35 (1/4) / 12.70 (1/2)
Standard length m (ft) 5.0 (16.4) 5.0 (16.4)
Length range (min – max) m (ft) 3 (9.8) ~ 15 (49.2) 3 (9.8) ~ 30 (98.4)
I/D & O/D Height different m (ft) 5 (16.4) 20 (65.6)
Additional Gas Amount g/m (oz/ft) 10 (0.1) 20 (0.2)
Length for Additional Gas m (ft) 7.5 (24.6) 7.5 (24.6)
Drain Hose Inner Diameter mm 16.0 16.0
Length mm 650 650
Indoor Heat
Exchanger
Fin Material Aluminium (Pre coated) Aluminium (Pre coated)
Fin Type Slit Fin Slit Fin
Row × Stage × FPI 2 × 15 × 17 2 × 17 × 17
Size (W × H × L) mm 610 × 315 × 25.4 836 × 357 × 25.4
Outdoor
Heat
Exchanger
Fin Material Aluminium (Blue coated) Aluminium (Blue coated)
Fin Type Corrugate Fin Slit Fin
Row × Stage × FPI 1 × 20 × 17 1 × 28 × 17
Size (W × H × L) mm 22 × 508.0 × 708.4 12.7 × 588.0 × 865.3
Air Filter Material Polypropelene Polypropelene
Type One-touch One-touch
Power Supply Indoor Indoor
Power Supply Cord A 15 16
Thermostat - -
Protection Device - -
DRY BULB WET BULB DRY BULB WET BULB
Indoor Operation Range
Maximum
°C (°F) 32 (89.6) 23 (73.4) 32 (89.6) 23 (73.4)
Minimum
°C (°F) 16 (60.8) 11 (51.8) 16 (60.8) 11 (51.8)
Outdoor Operation Range
Maximum
°C (°F) 55 (131) 31 (87.8) 55 (131) 31 (87.8)
Minimum
°C (°F) 16 (60.8) 11 (51.8) 16 (60.8) 11 (51.8)
1. Cooling capacities are based on indoor temperature of 27°C Dry Bulb (80.6°F Dry Bulb), 19.0°C Wet Bulb (66.2°F Wet Bulb) and outdoor air
temperature of 35°C Dry Bulb (95°F Dry Bulb), 24°C Wet Bulb (75.2°F Wet Bulb).
2. Specifications are subjected to change without prior notice for further improvement.

7
Model Indoor CS-PC24TKF
Outdoor CU-PC24TKF
Performance Test Condition ISO 5151 (T1)
Power Supply Phase, Hz Single, 50
V 220 240
Cooling
Capacity
kW 7.03 7.03
Btu/h 24000 24000
kJ/h 25310 25310
Running Current A 12.4 12.3
Input Power W 2.57k 2.70k
EER W/W 2.74 2.60
Btu/hW 9.34 8.89
Power Factor % 94 91
Indoor Noise (H / L) dB-A 48 / 42 49 / 42
Power Level dB 61 / - 62 / -
Outdoor Noise (H / L) dB-A 57 / - 58 / -
Power Level dB 72 / - 73 / -
Max Current (A) / Max Input Power (W) 16.8 / 3.64k
Starting Current (A) 59.0
Compressor
Type Hermetic Motor / Rotary
Motor Type Induction (2 poles)
Output Power W 2.0k
Indoor Fan
Type Cross-Flow Fan
Material ASG33
Motor Type DC Motor (8 poles)
Input Power W 94.8 94.8
Output Power W 40
Speed
QLo rpm 910
Lo rpm 1000
Me rpm 1100
Hi rpm 1220
SHi rpm 1300
Outdoor Fan
Type Propeller Fan
Material PP Resin
Motor Type AC / Induction (6 poles)
Input Power W 157.3 173.8
Output Power W 88
Speed Lo rpm 440 500
Hi rpm 860 890
Moisture Removal L/h (Pt/h) 4.0 (8.5)
Indoor Airflow
QLo m3/min (ft3/min) 15.7 (556)
Lo m3/min (ft3/min) 17.3 (611)
Me m3/min (ft3/min) 19.0 (672)
Hi m3/min (ft3/min) 21.1 (745)
SHi m3/min (ft3/min) 22.5 (794)
Outdoor
Airflow
Lo m3/min (ft3/min) 26.6 (941) 30.3 (1073)
Hi m3/min (ft3/min) 52.0 (1840) 54.0 (1910)
Refrigeration
Cycle
Control Device Capillary Tube
Refrigerant Oil cm3ATMOS NM56M or Suniso 4GDID (700)
Refrigerant Type g (oz) R22, 1.28k (45.2)

8
Model Indoor CS-PC24TKF
Outdoor CU-PC24TKF
Dimension
Height (I/D / O/D) mm (inch) 302 (11-29/32) / 695 (27-3/8)
Width (I/D / O/D) mm (inch) 1102 (43-13/32) / 875 (34-15/32)
Depth (I/D / O/D) mm (inch) 244 (9-5/8) / 320 (12-5/8)
Weight Net (I/D / O/D) kg (lb) 12 (26) / 54 (119)
Piping
Pipe Diameter (Liquid / Gas) mm (inch) 6.35 (1/4) / 15.88 (5/8)
Standard length m (ft) 5.0 (16.4)
Length range (min – max) m (ft) 3 (9.8) ~ 30 (98.4)
I/D & O/D Height different m (ft) 20 (65.6)
Additional Gas Amount g/m (oz/ft) 30 (0.3)
Length for Additional Gas m (ft) 7.5 (24.6)
Drain Hose Inner Diameter mm 16.0
Length mm 650
Indoor Heat
Exchanger
Fin Material Aluminium (Pre coated)
Fin Type Slit Fin
Row × Stage × FPI 2 × 17 × 17
Size (W × H × L) mm 836 × 357 × 25.4
Outdoor
Heat
Exchanger
Fin Material Aluminium (Blue coated)
Fin Type Slit Fin
Row × Stage × FPI 2 × 31 × 17
Size (W × H × L) mm 25.4 × 651 × 866.6:846.6
Air Filter Material Polypropelene
Type One-touch
Power Supply Indoor
Power Supply Cord A 20
Thermostat -
Protection Device Mechanical
DRY BULB WET BULB
Indoor Operation Range
Maximum
°C (°F) 32 (89.6) 23 (73.4)
Minimum
°C (°F) 16 (60.8) 11 (51.8)
Outdoor Operation Range
Maximum
°C (°F) 55 (131) 31 (87.8)
Minimum
°C (°F) 16 (60.8) 11 (51.8)
1. Cooling capacities are based on indoor temperature of 27°C Dry Bulb (80.6°F Dry Bulb), 19.0°C Wet Bulb (66.2°F Wet Bulb) and outdoor air
temperature of 35°C Dry Bulb (95°F Dry Bulb), 24°C Wet Bulb (75.2°F Wet Bulb).
2. Specifications are subjected to change without prior notice for further improvement.

9
3. Features
Long Installation Piping
oCS/CU-PC12TK long piping up to 15 meters.
oCS/CU-PC18TK, PC24TK long piping up to 30 meters.
Easy to use remote control
Quality Improvement
oRandom auto restart after power failure for safety restart operation
oGas leakage protection
oPrevent compressor reverse cycle
oOverload protector to protect compressor
oNoise prevention during soft dry operation
oBlue coated condenser for high resistance to corrosion
Operation Improvement
oQuiet mode to reduce the indoor unit operating sound
oJetstream mode to reach the desired room temperature quickly
o24-hour timer setting

10
4. Location of Controls and Components
4.1 Indoor Unit
4.1.1 CS-PC12TKF
Vertical Airflow
Direction Louver
• Do not adjust by hand.
Air Filters
Auto OFF/ON button
• Use when remote control is
misplaced or a malfunction occurs.
INDICATOR
(Green)
(Orange)
POWER
TIMER
(Orange)
JETSTREAM
(Orange)
SLEEP
Remote Control Receiver
Maximum distances: 8m
Horizontal airflow direction louver
• Manually adjustable.
Front Panel
Aluminium Fin
4.1.2 CS-PC18TKF CS-PC24TKF
Front Panel
Horizontal airflow direction louver
• Manually adjustable.
INDICATOR
(Green)
(Orange)
Auto OFF/ON button
• Use when remote control is misplaced
or a malfunction occurs.
Aluminium Fin
Vertical Airflow
Direction Louver
• Do not adjust by hand.
Remote Control Receiver
Maximum distances: 8m
POWER
TIMER
(Orange)
JETSTREAM
(Orange)
SLEEP
Air Filters
4.2 Outdoor Unit
Air inlet (rear)
A
ir inlet (side)
Air outlet

11
4.3 Remote Control
Remote control
display
JETSTREAM operation
Operation mode
OFF/ON
Quiet operation
Fan Speed selection
Airflow direction selection
Temperature setting
Timer setting
Sleep operation
Clock setting

12
5. Dimensions
5.1 Indoor Unit
5.1.1 CS-PC12TKF
290
197
B
A
C
PIPE
HOLE
CENTER
PIPE
HOLE
CENTER
128mm TO
PIPE HOLE
CENTER
128mm TO
PIPE HOLE
CENTER
799
(197)
<Top View>
<Front View>
<Bottom View>
<Side View>
Air intake
direction
Air outlet
direction
Left piping
hole
<Side View>
Right piping
hole
560.6
420
16.4
(264.6)
380
496.6
128
184
15
35
128
222
Left
piping
hole
Installation
plate
Relative position between the indoor and the installation plate <Front View>
Indoor unit
external
dimensions
line
Right
piping
hole
Unit : mm
92.8
60
60
55
41-61 410
Gas side
Liquid side
<Rear View>
60
41
64
87
<Remote Control Holder>
<Remote Control>
59
144.5
22

13
5.1.2 CS-PC18TKF CS-PC24TKF
Relative position between the indoor unit and the installation plate <Front View>
Left
piping
hole
Right
piping
hole
Indoor unit
external
dimensions
line
Installation
plate
Unit : mm
16.5
264
550 550
128
210
260
<Top View>
<Front View>
<Bottom View>
<Rear View>
<Side View><Side View>
<Remote Control Holder>
<Remote Control>
(41-61)
Air inlet
direction
244
Liquid side
Gas side
Left piping
hole
43
61
302
42.6
61
Air outlet
direction Right piping
hole
135
60
135
60
410
59
144.5
22
1102
128 128
256 256
64
87

14
5.2 Outdoor Unit
5.2.1 CU-PC12TKF
(18)
69.5 61.6
542
28939
570
22
(104.7)
67.6
780
85.5
155.2 34.3
60.5104.9
Space necessary
for installation
Anchor Bolt Pitch
320 × 570
1000 mm
100 mm
100 mm
<Side View>
<Side View> <Front View>
<Top View>
Unit: mm
2-way valve at
Liquid side
(High Pressure)
3-way valve at
Gas side
(Low Pressure)
5.2.2 CU-PC18TKF
3-way valve at Gas side
(Low Pressure)
2-way valve at Liquid side
(High Pressure)
(124) 540 160 37
37 299
32167
330
619
1836269
(20)
357
824 63
22
Anchor Bolt Pitch
330 x 540
Space necessary for
installation
<Side View>
10cm
10cm
100cm
<Side View>
<Top View>
<Front View>
Unit : mm

15
5.2.3 CU-PC24TKF
(25)
70.5 75
695
542
320
386
45
7.7
613
34.7 (131)
875
3582
360.5
131
72
Space necessary for
installation
Anchor Bolt Pitch
360.5 × 613
100 cm
10 cm
10 cm
<Side View>
<Side View> <Front View>
<Top View>
Unit: mm
2-way valve at Liquid side
(High Pressure)
3-way valve at Gas side
(Low Pressure)

16
6. Refrigeration Cycle Diagram
COMPRESSOR
3-WAY
VALVE
GAS
SIDE
LIQUID
SIDE
CAPILLARY
TUBE
HEAT EXCHANGER
(CONDENSER)
2-WAY
VALVE
PIPE
TEMP
SENSOR
INTAKE
AIR
TEMP
SENSOR
HEAT EXCHANGER
(EVAPORATOR)
INDOOR OUTDOOR
STRAINER
THERMOSTAT
(PC24TK only)

17
7. Block Diagram
7.1 CS-PC12TKF CU-PC12TKF
INDOOR UNIT OUTDOOR UNIT
INDOOR POWER SUPPLY
SC
C-FM
VA301
U
FUSE301
RY-PWR
FM
2
1
L
N
COMP
M
1 ~
FAN MOTOR
TEMP. FUSE
102°C (250V 4.5A)

18
7.2 CS-PC18TKF CU-PC18TKF
INDOOR UNIT OUTDOOR UNIT
SC
VA301
U
FUSE301
RY-PWR
FM
2
1
L
N
COMP
TEMP. FUSE
102°C (250V 3A)
M
INDOOR POWER SUPPLY
FAN MOTOR

19
7.3 CS-PC24TKF CU-PC24TKF
SC
VA301
U
FUSE301
RY-PWR
TEMP. FUSE
102°C (250V 3A)
M
FAN MOTOR
INDOOR UNIT OUTDOOR UNIT
C-FM
C-COMP.
FM
2
L
N
COMP
THERMOSTAT
1

20
8. Wiring Connection Diagram
8.1 CS-PC12TKF CU-PC12TKF
TRADEMARK
YELLOW
(YEL) OR (C)
BLUE
(BLU)
OR (R)
RED
(RED)
OR (S)
COMPRESSOR TERMINAL
THE PARENTHESIZED
LETTER IS INDICATED
ON TERMINAL COVER
EVAPORATOR GROUNDING
TERMINAL
COMPLETE
Y/G
TERMINAL
BOARD
RY-PWR
BL
L
N
1
2
W
AC303
(WHT)
AUTO SW
(SW01)
CN-STM1
(WHT)
CN-STM3
(BLU)
CN-TH
(RED)
CN-DISP
(YLW)
CN-FB
(WHT)
FUSE301
1
5
1
5
BR
M
M
BR
R
O
Y
P
R
O
Y
P
W
W
W
W
W
W
W
B
R
Y
W
O
BR
1
1
t°
t°
1
5
1
5
4
7
7
1
1
1
3
3
5
NOISE FILTER
CIRCUIT
SUCTION TEMP. SENSOR (THERMISTOR)
PIPING TEMP. SENSOR (THERMISTOR)
CN–DISP (WHT)
REMOTE CONTROLLER
FAN MOTOR
UP DOWN
LOUVER MOTOR
(OUTER)
UP DOWN
LOUVER MOTOR
(INNER)
RECTIFICATION
CIRCUIT
CN-PCFM
(WHT)
FAN MOTOR
CIRCUIT
ELECTRONIC
CONTROLLER
(DISPLAY & RECEIVER)
T3. 15A L250V
BR
ELECTRONIC CONTROLLER
(MAIN)
SINGLE
PHASE
POWER
SUPPLY
TEMP.
FUSE
102°C
(250V 4.5A)
PL
1
M
~
M
1~
M
1~
YELLOW
YELLOW OR GRAY
BLUE
BLUE
RED
BLUE
RED
BLUE
FAN MOTOR
CAPACITOR
COMPRESSOR
CAPACITOR
TERMINAL
BOARD
12
REMARKS
BL : BLACK
B/BLU : BLUE
BR : BROWN
G/GRN : GREEN
O : ORANGE
P : PINK
R : RED
W/WHT : WHITE
Y/G : YELLOW / GREEN
Y/YLW : YELLOW
Resistance of Indoor Fan Motor Windings
MODEL CS-PC12TKF
CONNECTION ACXA92-00090
BLUE-YELLOW 336 Ω
YELLOW-RED 306 Ω
Note: Resistance at 25°C of ambient temperature.
Resistance of Outdoor Fan Motor Windings
MODEL CU-PC12TKF
CONNECTION ACXA95-00440
BLUE-YELLOW 227 Ω
YELLOW-RED 163 Ω
Note: Resistance at 20°C of ambient temperature.
Resistance of Compressor Windings
MODEL CU-PC12TKF
CONNECTION 2KS210D5AA06
C-R 2.279 Ω
C-S 3.526 Ω
Note: Resistance at 20°C of ambient temperature.