Panasonic CS-PW18GKE User manual

© 2007 Panasonic HA Air-Conditioning (M) Sdn. Bhd.
(11969-T). All rights reserved. Unauthorized copying
and distribution is a violation of law.
Order No. MAC0701003C2
Air Conditioner
CS-PW18GKE CU-PW18GKE
TABLE OF CONTENTS PAGE PAGE
1 Safety Precautions----------------------------------------------- 3
2 Specifications ----------------------------------------------------- 5
3Features------------------------------------------------------------- 7
4 Location of Controls and Components ------------------- 8
4.1. Indoor Unit--------------------------------------------------- 8
4.2. Outdoor Unit ------------------------------------------------ 8
4.3. Remote Control -------------------------------------------- 8
5Dimensions--------------------------------------------------------- 9
5.1. Indoor Unit & Remote Control-------------------------- 9
5.2. Outdoor Unit -----------------------------------------------10
6 Refrigeration Cycle Diagram --------------------------------11
7 Block Diagram----------------------------------------------------12
8 Wiring Connection Diagram ---------------------------------13
9 Electronic Circuit Diagram -----------------------------------14
9.1. Indoor Unit--------------------------------------------------14
9.2. Outdoor Unit -----------------------------------------------14
10 Printed Circuit Board------------------------------------------ 15
10.1. Indoor Unit------------------------------------------------- 15
10.2. Outdoor Unit----------------------------------------------- 17
10.3. Indicator & Receiver-------------------------------------18
11 Installation Instruction ----------------------------------------19
11.1. Select The Best Location ------------------------------19
11.2. Indoor/Outdoor Unit Installation Diagram----------19
11.3. Indoor Unit-------------------------------------------------20
11.4. Outdoor Unit----------------------------------------------- 23
12 Operation And Function--------------------------------------25
12.1. Heating Operation --------------------------------------- 25
12.2. Cooling Operation----------------------------------------26
12.3. Soft Dry Operation--------------------------------------- 27
12.4. Automatic Operation ------------------------------------28
12.5. Operation Control---------------------------------------- 29
12.6. Indoor Fan Speed Control -----------------------------34

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12.7. Outdoor Fan Speed Control ---------------------------36
12.8. Vertical Airflow Direction Control---------------------36
12.9. Timer Control----------------------------------------------37
12.10. Random Auto Restart Control-------------------------37
12.11. Remote Control Signal Receiving Sound ----------37
13 Servicing Mode --------------------------------------------------38
13.1. Auto OFF/ON Button------------------------------------38
14 Troubleshooting Guide----------------------------------------39
14.1. Refrigeration Cycle System ---------------------------39
14.2. Relationship Between The Condition Of The
Air Conditioner And Pressure And Electric
Current------------------------------------------------------40
14.3. Diagnosis Methods Of A Malfunction Of A
Compressor And 4-way Valve ------------------------40
15 Disassembly and Assembly Instructions---------------41
15.1. Indoor Electronic Controllers Removal
Procedures-------------------------------------------------41
15.2. Cross Flow Fan and Indoor Fan Motor
Removal Procedures------------------------------------42
15.3. Remote Control Reset ----------------------------------43
16 Technical Data----------------------------------------------------44
16.1. Thermostat Characteristics----------------------------44
16.2. Sensible Capacity Chart--------------------------------45
16.3. Operation Characteristics------------------------------46
17 Exploded View and Replacement Parts List-----------50
17.1. Indoor Unit -------------------------------------------------50
17.2. Outdoor Unit-----------------------------------------------52

3
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 instructions 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 at connection point of terminal, fire or electrical shock.
8. When connecting the piping, do not allow air or any substances other than the specified refrigerant to enter the refrigeration
cycle. Otherwise, this may lower the capacity, cause abnormally high pressure in the refrigeration cycle, and possibly result in
explosion and injury.
9. Thickness of copper pipes used must be more than 0.8 mm. Never use copper pipes thinner than 0.8 mm.
10. It is desirable that the amount of residual oil is less than 40 mg/10 m.
11. Do not modify the length of the power supply cord or use of the extension cord, and do not share the single outlet with other
electrical appliances. Otherwise, it will cause fire or electrical shock.
1. The equipment must be earthed. It may cause electrical shock if grounding is not perfect.
2. 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.

4
3. Carry out drainage piping as mentioned in installation instructions. If drainage 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 point is 50 - 70°F (30 - 40°C) higher. Please use a high
temperature soldering iron. In case of the soldering iron with temperature control, please set it to 700 ± 20°F (370 ± 10°C).
Pb free solder will tend to splash when heated too high (about 1100°F/600°C).
1. Selection of the installation location. Select an installation location which is rigid and strong enough to support or hold the unit, and select a
location for easy maintenance.
2. Power supply connection to the conditioner. Connect the power supply cord of the air conditioner to the mains using one of the following
methods. Power supply point shall be the place where there is ease for access for the power disconnection in case of emergency.
In some countries, permanent connection of this room air conditioner to the power supply is prohibited.
1. Power supply connection to the receptacle using a power plug. Use an approved 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 circuit breaker for the permanent
connection. It must be a double pole switch with a minimum 3.5 mm contact gap.
3. Do not release refrigerant during piping work for installation, servicing reinstallation and during repairing a refrigeration parts. Take care of
the liquid refrigerant, it may cause frostbite.
4. Installation work. It may need two people to carry out the installation work.
5. Do not install this appliance in a laundry room or other location where water may drip from the ceiling, etc.

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2 Specifications
ITEM UNIT INDOOR UNIT OUTDOOR UNIT
Performance Test Condition EUROVENT
C
O
O
L
I
N
G
Capacity kW 5.10 BTU/h 17400
*kCal/h —
EER W/W (Class) 2.91
BTU/hW 9.94
Noise Level dB (A) High: 45, Low: 38 High: 55/-
Power level dB 58 70
H
E
A
T
I
N
G
Capacity kW 5.30 BTU/h 18100
*kCal/h —
COP W/W (Class) 3.35
BTU/hW 11.46
Noise Level dB (A) High: 43, Low: 38 High: 55/-
Power level dB 56 70
Moisture Removal l/h 2.9
pt/h 6.1
Air Volume
Lo Cooling m3/min (ft3/min) 13.1 (463) —
Heating 14.0 (493) —
Me Cooling m3/min (ft3/min) 15.1 (533) —
Heating 15.1 (532) —
Hi Cooling m3/min (ft3/min) 16.2 (570) 29 (1020)
Heating 16.4 (580) 29 (1020)
SHi Cooling m3/min (ft3/min) ——
Heating — —
Refrigeration Control Device — Capillary Tube
Refrigeration Oil (Charged) cm3— RB68A or FREOL ALPHA 68M (670)
Refrigerant (Charged) R410A kg (oz) — 1.33 (47.0)
Dimension Height mm (inch) 275 (10-13/16) 540 (21-1/4) Width mm (inch) 998 (39-9/32) 780 (30-23/32)
Depth mm (inch) 230 (9-1/6) 289 (11-3/8)
Net Weight kg (lbs) 11.0 (24) 44.0 (97)
Pipe Diameter Gas mm (inch) 12.70 (1/2”)
Liquid mm (inch) 6.35 (1/4”)
Height Difference m (ft) 20 (65.6)
Pipe Length Range m (ft) 3 (9.8) ~ 25 (82.0)
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 — 1.5k
Fan
Type mm (inch) Cross-Flow Fan Propeller Fan
Material ASHT-18 PP Resin
Motor Type Transistor (8-poles) Induction (6-poles)
Input Power W 60
Output Power W 30 35
Fan Speed
Lo (Cool/Heat) rpm 1190 / 1270 845
Me (Cool/Heat) rpm 1370 / 1370 —
Hi (Cool/Heat) rpm 1470 / 1490 —
SHi (Cool/Heat) rpm — —

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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. (80.6°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
• Specifications are subject to change without notice for further improvement.
Heat Exchanger
Fin Material Aluminium (Pre coat) Aluminium (Pre coat)
Fin Type Slit Fin Corrugated Fin
Row x Stage x FPI 2 x 15 x 21 2 x 20 x 17
Size (W x H x L) mm (inch) 810 x 315 x 25.4 684.6:719.2 x 508 x 44
Air Filter Type Material P. P. Honey Comb —
Style One-Touch —
Item Unit
Power Source (Phase, Voltage, Cycle) øSingle V 230
Hz 50
Input Power Cooling W 1.75k
Heating W 1.58k
*Annual consumption W 875
Starting Current A 27
Running Current Cooling A 7.7
Heating A 6.9
Power Factor Cooling % 99
Heating % 99
Power factor means total figure of compressor, indoor fan motor and outdoor fan motor.
Power Cord Number of core 3 (1.5mm2)
Length m 2
Thermostat —
Protection Device —
ITEM UNIT INDOOR UNIT OUTDOOR UNIT

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3 Features
• 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 up to 25 meter.
•Quality Improvement
- Random auto restart after power failure for safety restart
operation.
- Gas leakage detection.
- Prevent Compressor reverse cycle.
- Inner protector to protect Compressor.
- Noise prevention during soft dry operation.
- Pre coated Condenser for high resistance to corrosion.
- Overload protection control (Heating)
- Outdoor fan control.
- Compressor high pressure control.
•Serviceability Improvement
- Removable and washable Front Panel.
•Environmental Protection
- Non-ozone depletion substances refrigerant (R410A)
•Operation Improvement
- 24-hour timer setting.

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4 Location of Controls and Components
4.1. Indoor Unit
4.2. Outdoor Unit
4.3. Remote Control

9
5 Dimensions
5.1. Indoor Unit & Remote Control

10
5.2. Outdoor Unit

11
6 Refrigeration Cycle Diagram

12
7 Block Diagram

13
8 Wiring Connection Diagram

14
9 Electronic Circuit Diagram
9.1. Indoor Unit
9.2. Outdoor Unit

15
10 Printed Circuit Board
10.1. Indoor Unit

16

17
10.2. Outdoor Unit

18
10.3. Indicator & Receiver

19
11 Installation Instruction
11.1. 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 2.5 m.
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 7.5 m, additional refrigerant should be
added as shown in the table.
If the unit is installed at 10 m distance, the quantity of additional
refrigerant should be 50g ...... 20 g/m = 50 g
11.2. Indoor/Outdoor Unit
Installation Diagram
Piping size Rated
Length
(m)
Max
Elevation
(m)
Min.
Piping
Length
(m)
Max.
Piping
Length
(m)
Additional
Refrigerant
(g/m)
Gas Liquid
1/2” 1/4” 5 20 3 25 20

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11.3. Indoor Unit
11.3.1. HOW TO FIX INSTALLATION PLATE
The mounting wall is strong and solid enough to prevent it from
the vibration.
The centre of installation plate should be at more than 550 mm
at right and left of the wall.
The distance from installation plate edge to ceiling should more
than 67 mm.
From installation plate left edge to unit’s left side is 47 mm.
From installation plate right edge to unit’s right is 73 mm.
1. Mount the installation plate on the wall with 5 screws or
more.
(If mounting the unit on the concrete wall consider using
anchor bolts.)
• Always mount the installation plate horizontally by
aligning the marking-off line with the thread and using a
level gauge.
2. Drill the piping plate hole with ø70 mm hole-core drill.
• Line according to the left and right side of the installation
plate. The meeting point of the extended line is the
centre of the hole. Another method is by putting
measuring tape at position as shown in the diagram
above. The hole centre is obtained by measuring the
distance namely 150 mm and 125 mm for left and right
hole respectively.
• Drill the piping hole at either the right or the left and the
hole should be slightly slanted to the outdoor side.
11.3.2. TO DRILL A HOLE IN THE WALL
AND INSTALL A SLEEVE OF
PIPING
1. Insert the piping sleeve to the hole.
2. Fix the bushing to the sleeve.
3. Cut the sleeve until it extrudes about 15 mm from the
wall.
4. Finish by sealing the sleeve with putty or caulking
compound at the final stage.
11.3.3. INDOOR UNIT INSTALLATION
1. For the right rear piping
2. For the right and right bottom piping
: For left side piping, piping connection for liquid should be about
126 mm from this line.
: For left side piping, piping connection for gas should be about
174 mm from this line.
: For left side piping, piping connection cable should be about
984 mm from this line.
Caution
When the wall is hollow, please be sure to use the
sleeve for tube ass’y to prevent dangers caused by
mice biting the connecting cable.