Panasonic CS-C9EKZW User 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. MAC0602015C3
Air Conditioner
CS-C9EKZW CU-2C18EKH
CS-C9EKZW CU-3C20EKH
TABLE OF CONTENTS PAGE PAGE
1 Safety Precautions----------------------------------------------- 3
2 Specifications ----------------------------------------------------- 5
2.1. CS-C9EKZW CU-2C18EKH --------------------------- 5
2.2. CS-C9EKZW CU-3C20EKH --------------------------- 7
3Features------------------------------------------------------------- 9
4 Location of Controls and Components------------------10
4.1. Indoor Unit--------------------------------------------------10
4.2. Outdoor Unit -----------------------------------------------10
4.3. Remote Control -------------------------------------------10
5 Dimensions--------------------------------------------------------11
5.1. Indoor Unit & Remote Control-------------------------11
5.2. Outdoor Unit -----------------------------------------------12
6 Refrigeration Cycle Diagram --------------------------------13
7 Block Diagram----------------------------------------------------14
8 Wiring Connection Diagram---------------------------------16
8.1. CS-C9EKZW CU-2C18EKH-------------------------- 16
8.2. CS-C9EKZW CU-3C20EKH-------------------------- 17
9 Printed Circuit Board------------------------------------------18
9.1. Indoor Unit-------------------------------------------------18
9.2. Indicator ----------------------------------------------------20
9.3. Outdoor Unit-----------------------------------------------21
10 Installation Instruction----------------------------------------22
10.1. Select The Best Location ------------------------------22
10.2. Indoor/Outdoor Unit Installation Diagram----------22
10.3. Indoor Unit-------------------------------------------------23
10.4. Outdoor Unit-----------------------------------------------26
11 Operation And Control---------------------------------------- 29
11.1. Cooling Operation----------------------------------------29

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11.2. Soft Dry Operation---------------------------------------30
11.3. Automatic Operation-------------------------------------31
11.4. Operation Control ----------------------------------------32
11.5. Indoor Fan Speed Control -----------------------------34
11.6. Outdoor Fan Speed Control---------------------------35
11.7. Vertical Airflow Direction Control---------------------36
11.8. Horizontal Airflow Direction Control -----------------36
11.9. Powerful Operation --------------------------------------36
11.10. Quiet Operation-------------------------------------------37
11.11. Timer Control----------------------------------------------38
11.12. Random Auto Restart Control ------------------------38
11.13. Remote Control Signal Receiving Sound ----------38
12 Servicing Mode --------------------------------------------------39
12.1. Auto OFF/ON Button------------------------------------39
12.2. Remote Control Button ---------------------------------39
12.3. Test Mode Timer Table----------------------------------40
13 Troubleshooting Guide----------------------------------------41
13.1. Refrigeration Cycle System ---------------------------41
13.2. Relationship Between The Condition Of The
Air Conditioner And Pressure And Electric
Current------------------------------------------------------42
13.3. Diagnosis Methods Of A Malfunction Of A
Compressor------------------------------------------------42
14 Disassembly and Assembly Instructions---------------43
14.1. Indoor Electronic Controllers Removal
Procedures-------------------------------------------------43
14.2. Indoor Fan Motor and Cross Flow Fan
Removal Procedures------------------------------------45
15 Technical Data ---------------------------------------------------46
15.1. Thermostat Characteristics----------------------------46
15.2. Operation Characteristics------------------------------47
16 Exploded View and Replacement Parts List-----------52
16.1. CS-C9EKZW ----------------------------------------------52
16.2. CU-2C18EKH ---------------------------------------------54
16.3. CU-3C20EKH ---------------------------------------------56

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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.

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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
2.1. CS-C9EKZW CU-2C18EKH
Unit Indoor unit Outdoor unit
Performance Test Condition ISO 5151
Power Source (Phase, Voltage, Cycle) ø Single
V240 - 220
Hz 50
Cooling Capacity kW (1 unit) 2.44 - 2.40 (2 units) 4.88 - 4.80
(BTU/h) (8,320 - 8,180) (16,600 - 16,400)
Moisture Removal l/h (1 unit) 1.5 (2 units) 2.6
(Pint/h) (3.2) (5.5)
Airflow Method
OUTLET
INTAKE
SIDE VIEW TOP VIEW
Air Volume
Lo m3/min (cfm) 5.7 (200) - 5.7 (200) —
Me m3/min (cfm) 7.8 (274) - 7.8 (274) —
Hi m3/min (cfm) 9.4 (332) - 9.4 (332) 32.6 (1,150) - 31.1 (1,100)
SHi m3/min (cfm) 10.1 (357) - 10.1 (357) —
Noise Level dB (A) High 36 - 36, Low 26 - 26 High 55 - 53
Electrical Data
Input Power W (1 unit) (2 units)
770 - 730 1,540 - 1,460
Running Current A (1 unit) (2 units)
3.3 - 3.5 6.6 - 7.0
EER W/W (BTU/hW) (1 unit) 3.17 - 3.29 (10.8 - 11.2) (2 units) 3.17 - 3.29 (10.8 - 11.2)
Starting Current A 15.0
Piping Connection Port
(Flare piping) inch inch G ; Half Union 3/8” L ; Half Union 1/4” G ; 3-way valve 3/8” L ; 3-way valve 1/4”
Pipe Size
(Flare piping) inch inch G (gas side) ; 3/8” L (liquid side) ; 1/4” G (gas side) ; 3/8” L (liquid side) ; 1/4”
Drain Inner diameter mm 12 —
Hose Length m 0.7 —
Dimensions Height inch (mm) 11 - 1/32 (280) 25 - 21/32 (651) Width inch (mm) 31 - 15/32 (799) 35 - 3/16 (893)
Depth inch (mm) 7 - 7/32 (183) 13 - 19/32 (345)
Net Weight lb (kg) 18 (8.0) 137 (62)
Compressor Description — Rotary (1 cylinder)
rolling piston type
Motor Type — Induction (2-poles)
Rated Output W — 650
Fan Motor
Description Cross-flow Fan Propeller Fan
Material AS + Glass Fiber 20% AS + Glass Fiber 20%
Type Induction (4-poles) Induction (6-poles)
Input W 29.3 - 26.3 134.6 - 118.8
Rated Output W 15 50
Fan Speed
Low rpm 730 - 730 —
Medium rpm 1,000 - 1,000 —
High rpm 1,210 - 1,210 760 - 720
SuperHigh rpm 1,300 - 1,300 —

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• Specifications are subject to change without notice for further improvement.
Heat Exchanger
Description Evaporator Condenser
Tube material Copper Copper
Fin material Aluminium Aluminium (Blue Coat)
Fin Type Slit Fin Louver Fin
Row / Stage (Plate fin configuration, forced draft)
2 x 15 2 x 24
FPI 19 16
Size (W ×H ×L) mm 610 x 315 x 25.4 560 x 609.6 x 44
Refrigerant Control Device — Capillary Tube
Refrigeration Oil (c.c) — SUNISO 4GDID or ATMOS M60
or ATMOS 56M
Refrigerant (R-22) g (oz) — 700 x 2 (24.7 x 2)
Thermostat ——
Protection Device — Overload protector
Capillary 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 — 25 µF, 370/400 VAC
Fan Motor Capacitor µF, VAC 1.5 µF, 440 VAC 3.0 µF, 450 VAC
Unit Indoor unit Outdoor unit

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2.2. CS-C9EKZW CU-3C20EKH
Indoor unit Outdoor unit
Performance Test Condition ISO 5151
Unit Single Operation Single Operation Double Operation Triple Operation
(A, B1, B2) (A) (B1 or B2) (B1 + B2) (A + B1 or B2) (A + B1 + B2)
Power Source ø Single
V 240 - 220
(Phase, Voltage, Cycle) Hz 50
Cooling Capacity Per Unit kW
(BTU/h) — 2.40-2.34 (8,180-7,980) 2.82-2.78 (9,620-9,480) 3.60-3.52 (12,300-12,000) 5.22-5.12 (17,800-17,500) 6.00-5.86 (20,500-20,000)
Moisture Removal l/h —1.5 1.6 2.1 2.8 3.2
(Pint/h) (3.2) (3.4) (4.4) (5.9) (6.8)
Airflow Method
OUTLET
INTAKE
SIDE VIEW TOP VIEW
Air Volume
Lo m3/min (cfm) 5.7 - 5.7
(200 - 200) —
Me m3/min (cfm) 7.8 - 7.8
(274 - 274) —
Hi m3/min (cfm) 9.4 - 9.4
(332 - 332) 36.8 (1,300) - 35.1 (1,240)
SHi m3/min (cfm) 10.1 - 10.1
(357 - 357) —
Noise Level dB (A) High 36 - 36,
Low 26 - 26 High 56 - 54
Electrical
Data
Input Power W 55 - 50 820 - 770 1,120 - 1,070 1,210 - 1,150 1,850 - 1,750 1,920 - 1,840
Running Current A 0.25 - 0.23 3.6 - 3.7 4.9 - 5.1 5.3 - 5.5 8.1 - 8.3 8.3 - 8.7
EER W/W
(BTU/hW) —2.93 - 3.04 (10.0 - 10.4) 2.52 - 2.60 (8.6 - 8.9) 2.98 - 3.06 (10.2 - 10.5) 2.82 - 2.93 (9.6 - 10.0) 3.13 - 3.18 (10.7 - 10.9)
Starting Current A (A unit) 15.0 - 15.0 (B unit) 21.0 - 21.0
Piping Connection Port
(Flare piping) inch inch G ; Half Union 3/8” L ; Half Union 1/4” G ; 3-way valve 3/8” L ; 3-way valve 1/4”
Pipe Size
(Flare piping) inch inch G (gas side) ; 3/8” L (liquid side) ;
1/4”
G (gas side) ; 3/8”
L (liquid side) ; 1/4”
Drain Inner diameter mm 12 —
Hose Length m 0.7 —
Dimensions Height inch (mm) 11 - 1/32 (280) 25 - 21/32 (651) Width inch (mm) 31 - 15/32 (799) 35 - 3/16 (893)
Depth inch (mm) 7 - 7/32 (183) 13 - 19/32 (345)
Net Weight lb (kg) 18 (8.0) 146 (66)
Compressor Description — Rotary (1 cylinder)
rolling piston type
Motor Type — Induction (2-poles)
Rated Output W — (A unit) 650 (B unit) 900

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• Specifications are subject to change without notice for further improvement.
Fan Motor
Description Cross-flow Fan Propeller Fan
Material AS + Glass Fiber
20% AS + Glass Fiber 20%
Type Induction
(4-poles) Induction (6-poles)
Input W 29.3 - 26.3 134.0 - 118.7
Rated Output W 15 50
Fan
Speed
Low rpm 730 - 730 —
Medium rpm 1,000 - 1,000 —
High rpm 1,210 - 1,210 765 - 725
SuperHigh rpm 1,300 - 1,300 —
Heat
Exchanger
Description Evaporator Condenser
Tube material Copper Copper
Fin material Aluminium Aluminium (Blue Coat)
Fin Type Slit Fin Louver Fin
Row / Stage 2 x 15 (Plate fin configuration, forced draft)
2 x 24
FPI 19 16
Size (W ×H ×L) mm 610 x 315 x 25.4 756.0 x 609.6 x 44
719.5
Refrigerant Control Device — Capillary Tube
Refrigeration Oil (c.c) — SUNISO 4GDID or ATMOS M60 or ATMOS 56M
Refrigerant (R-22) g (oz) — (A unit) 770 (27.2)
(B unit) 990 (34.9)
Thermostat — —
Protection Device — Overload protector
Capillary
Tube
Length mm — 935, 842, 1,170
Flow Rate l/min — 20.0, 15.5, 10.0
Inner Diameter mm — 2.0, 1.8, 1.6
Air Filter Material
Style P.P. Honeycomb —
Capacity Control Capillary Tube
Compressor Capacitor µF, VAC — 25 µF, 440 VAC
Fan Motor Capacitor µF, VAC 1.5 µF, 440 VAC 3.0 µF, 450 VAC
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
-Long piping up to 15 meter
• Supersonic Air Purifying Device with SUPER alleru-buster
- Inactivate various harmful airborne elements including allergens, viruses and bacteria
- Generated supersonic waves enhance the ability to collect dust and dirt in the air
• Auto Refresh Deo
- Regenerated the deodorizing performance so it stays the same as when it was first used
•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

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

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5 Dimensions
5.1. Indoor Unit & Remote Control
5.1.1. CS-C9EKZW

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5.2. Outdoor Unit

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6 Refrigeration Cycle Diagram

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7 Block Diagram

15

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8 Wiring Connection Diagram
8.1. CS-C9EKZW CU-2C18EKH

17
8.2. CS-C9EKZW CU-3C20EKH

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9 Printed Circuit Board
9.1. Indoor Unit
TOP VIEW

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BOTTOM VIEW

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9.2. Indicator
TOP VIEW
BOTTOM VIEW