Panasonic CS-C9DKZW User manual

1 Features 2
2 Functions 3
3 Product Specifications 6
3.1. CS-C9DKZW CU-2C18DKH 6
3.2. CS-C9DKZW CU-3C20DKH 8
4 Dimensions 10
4.1. Indoor Unit & Remote Control 10
4.2. Outdoor Unit 11
5 Refrigeration Cycle Diagram 12
6 Block Diagram 13
7 Wiring Diagram 15
8 Operation Details 17
© 2004 Panasonic HA Air-Conditioning (M) Sdn Bhd
(11969-T). All rights reserved. Unauthorized copying
and distribution is a violation of law.
CS-C9DKZW CU-2C18DKH
CS-C9DKZW CU-3C20DKH
8.1. Cooling Operation 17
8.2. Soft Dry Operation 18
8.3. Automatic Operation 19
8.4. Operation Control 20
8.5. Indoor Fan Speed Control 23
8.6. Outdoor Fan Speed Control 25
8.7. Vertical Airflow Direction Control 25
8.8. Horizontal Airflow Direction Control 26
8.9. Powerful Operation 26
8.10. Quiet Operation 27
8.11. Ionizer Operation 28
Air Conditioner
CONTENTS
Page Page
Order No. MAC0501011C3

8.12. Timer Control 29
8.13. Random Auto Restart Control 29
8.14. Remote Control Signal Receiving Sound 29
9 Operating Instructions 30
10 Installation Instructions 36
10.1. Safety Precautions 36
10.2. Attached accessories 38
10.3. Select the best location 38
10.4. Indoor/Outdoor Unit Installation Diagram 38
10.5. Indoor unit 39
10.6. Outdoor unit 43
11 3-way Valve 47
11.1. Air purging 48
11.2. Pumping down 49
11.3. Evacuation 52
11.4. Gas charging 53
12 Servicing Information 54
12.1. Distinction of Lead Free (PbF) Printed Circuit Board 54
12.2. Indoor Electronic Controllers Removal Procedures 54
12.3. Indoor Fan Motor and Cross Flow Fan Removal
Procedures 55
12.4. Auto OFF/ON Button 56
12.5. Remote Control Reset 57
13 Troubleshooting Guide 58
• High Efficiency
• Compact Design
• Comfort Environment
− Ionizer control for generating negative ion in discharge
air
− Air filter with function to reduce dust and smoke
− Wider range of horizontal discharge air
• Auto Restart
− Random auto restart after power failure for safety restart
operation
• Removable and Washable Front Panel
• Remote Control Illuminable Button
• Catechin Air Purifying Filter
− Trap dust, tobacco smoke and tiny particles
− Prevent the growth of bacteria and viruses trapped
• Triple Deodorizing Filter
− Absorb odours produced by wall paper, construction
material and living environment
13.1. Refrigeration cycle system 58
13.2. Relationship between the condition of the air conditioner
and pressure and electric current 59
13.3. Diagnosis methods of a malfunction of a compressor 59
14 Technical Data 60
14.1. Thermostat characteristics 60
14.2. Operation characteristics 60
15 Exploded View (Indoor Unit) 62
16 Replacement Parts List (Indoor Unit) 63
16.1. CS-C9DKZW 63
17 Exploded View (Outdoor Unit) 64
17.1. CU-2C18DKH 64
18 Replacement Parts List (Outdoor Unit) 65
18.1. CU-2C18DKH 65
19 Exploded View (Outdoor Unit) 66
19.1. CU-3C20DKH 66
20 Replacement Parts List (Outdoor Unit) 67
20.1. CU-3C20DKH 67
21 Electronic Circuit Diagram 68
21.1. Remote Control 76
21.2. Print Pattern Indoor Unit Printed Circuit Board 77
21.3. Print Pattern Indicator Printed Circuit Board 79
21.4. Print Pattern Outdoor Unit Printed Circuit Board 80
• Quality Improvement
− Gas leakage protection
− Prevent compressor reverse cycle
− 2-stage OLP to protect compressor
− Noise prevention during soft dry operation.
− Blue Coated Condenser
− High resistance to corrosion.
• Operation Improvement
− Quiet mode to provide extra quiet operation
− Powerful mode to reach the desired room temperature
quickly
• Long Installation Piping
− Long piping up to 15 meter
• 12-hour Timer Setting
1 Features
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CS-C9DKZW CU-2C18DKH / CS-C9DKZW CU-3C20DKH

2 Functions
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CS-C9DKZW CU-2C18DKH / CS-C9DKZW CU-3C20DKH

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CS-C9DKZW CU-2C18DKH / CS-C9DKZW CU-3C20DKH

Outdoor Unit
• To protect compressor from reverse
rotation when there is a instantaneous
power failure.
60 Sec. Forced Operation Control
• Once the compressor is activated, it
does not stop within the first 60 sec.
However, it stops immediately when
received stop signal from remote control.
Overload Protector
• 2-stage OLP to protect the compressor.
Overload Protector will trip when
– Temperature of compressor increases
to 120°C.
– High temperature or high current flows
to compressor.
(Refer circuit diagram for OLP
characteristic)
Compressor Reverse Rotation
Protection Control
Outdoor Fan Operation Control
CU-2C18DKH & CU-3C20DKH
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CS-C9DKZW CU-2C18DKH / CS-C9DKZW CU-3C20DKH

3 Product Specifications
3.1. CS-C9DKZW CU-2C18DKH
Unit Indoor unit Outdoor unit
Power Source (Phase, Voltage, Cycle)
ø, V, Hz
Single
240 - 220
50
Cooling Capacity kW
(BTU/h)
(1 unit) 2.44 - 2.40
(8,320 - 8,180)
(2 units) 4.88 - 4.80
(16,600 - 16,400)
kJ/h (1 unit) 8,640 (2 units) 8,780
Moisture Removal l/h
(Pint/h)
(1 unit) 1.5
(3.2)
(2 units) 2.6
(5.5)
Airflow Method OUTLET
INTAKE
SIDE VIEW TOP VIEW
Air Volume Lo m3/min (cfm) 5.6 (200) - 5.6 (200) —
Me m3/min (cfm) 6.8 (240) - 6.8 (240) —
Hi m3/min (cfm) 8.6 (300) - 8.6 (300) 32.6 (1,150) - 31.1 (1,100)
SHi m3/min (cfm) 9.3 (330) - 9.3 (330) —
Noise Level dB (A) High 36 - 36, Low 26 - 26 High 55 - 53
Power level dB High 49 - 49 High 70 - 68
Electrical Data Input Power kW (1 unit)
770 - 730
(2 units)
1,540 - 1,460
Running Current A (1 unit)
3.3 - 3.5
(2 units)
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
Hose
Inner diameter mm 12 —
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) 20 (9.0) 137 (62)
Compressor Description —Rotary (1 cylinder)
rolling piston type
Motor Type —Induction (2-poles)
Rated Output W — 650
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Unit Indoor unit Outdoor unit
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 750 - 750 —
Medium rpm 920 - 920 —
High rpm 1,160 - 1,160 760 - 720
SuperHigh rpm 1,250 - 1,250 —
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)
2×15 2×24
FPI 19 16
Size (W × H × L) mm 610 × 315 × 25.4 560 × 609.6 × 44
Refrigerant Control Device —Capillary Tube
Refrigeration Oil (c.c) — SUNISO 4GDID or ATMOS M60
or ATMOS 56M
Refrigerant (R-22) g (oz) — 700 × 2 (24.7 × 2)
Thermostat — —
Protection Device — Overload 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 — 25 µF, 370/400 VAC
Fan Motor Capacitor µF, VAC 1.5 µF, 440 VAC 3.0 µF, 450 VAC
Note:
• Specifications are subjected to change without prior notice for further improvement.
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CS-C9DKZW CU-2C18DKH / CS-C9DKZW CU-3C20DKH

3.2. CS-C9DKZW CU-3C20DKH
Indoor unit Outdoor unit
Unit Single Operation
(A, B1, B2)
Single Operation Double Operation Triple Operation
(A) (B1 or B2) (B1 + B2) (A + B1 or B2) (A + B1 + B2)
Power Source
(Phase, Voltage, Cycle) ø, V, Hz
Single
240 - 220
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
(Pint/h)
— 1.5
(3.2)
1.6
(3.4)
2.1
(4.4)
2.8
(5.9)
3.2
(6.8)
Airflow Method OUTLET
INTAKE
SIDE VIEW TOP VIEW
Air Volume Lo m3/min
(cfm)
5.6 - 5.6
(200 - 200)
—
Me m3/min
(cfm)
6.8 - 6.8
(240 - 240)
—
Hi m3/min
(cfm)
8.6 - 8.6
(300 - 300)
36.8 (1,300) - 35.1 (1,240)
SHi m3/min
(cfm)
9.3 - 9.3
(330 - 330)
—
Noise Level dB (A) High 36 - 36,
Low 26 - 26
High 56 - 54
Power
level dB
High 49 - 49 High 71 - 69
Electrical
Data
Input Power kW 50 - 50 820-770 1,120-1,070 1,210-1,150 1,850-1,750 1,920-1,840
Running Current A 0.23 - 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
Hose
Inner diameter mm 12 —
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) 20 (9.0) 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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CS-C9DKZW CU-2C18DKH / CS-C9DKZW CU-3C20DKH

Indoor unit Outdoor unit
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 750 - 750 —
Medium rpm 920 - 920 —
High rpm 1,160 - 1,160 765 - 725
SuperHigh rpm 1,250 - 1,250 —
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)
2×15 2×24
FPI 19 16
Size (W × H × L) mm 610 × 315 × 25.4 756.0
719.5
× 609.6 × 44
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) 1,070 (37.8)
Thermostat — —
Protection Device — Overload Protector
Capillary
Tube
Length mm — 935, 920, 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
Note:
• Specifications are subjected to change without prior notice for further improvement.
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CS-C9DKZW CU-2C18DKH / CS-C9DKZW CU-3C20DKH

4 Dimensions
4.1. Indoor Unit & Remote Control
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CS-C9DKZW CU-2C18DKH / CS-C9DKZW CU-3C20DKH

4.2. Outdoor Unit
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CS-C9DKZW CU-2C18DKH / CS-C9DKZW CU-3C20DKH

5 Refrigeration Cycle Diagram
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6 Block Diagram
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7 Wiring Diagram
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CS-C9DKZW CU-2C18DKH / CS-C9DKZW CU-3C20DKH

8 Operation Details
8.1. Cooling Operation
• Cooling operation can be set using remote control.
• This operation is applied to cool down the room temperature reaches the setting temperature set on the remote control.
• The remote control setting temperature, which takes the reading of intake air temperature sensor, can be adjusted from 16°C
to 30°C.
• During cooling operation, the compressor will stop running and restart as shown in below figure.
8.1.1. Cooling Operation Time Diagram
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8.2.1. Soft Dry Operation Time Diagram
8.2. Soft Dry Operation
• Soft Dry operation can be set using remote control.
• Soft Dry operation is applied to dehumidify and to perform a gentle cooling to the room.
• This operation starts when the intake air temperature sensor reaches the setting temperature on the remote control.
• When operation begin, Soft Dry will switched “ON” for a maximum 10 minutes, then Soft Dry operation will turned “OFF” for a
minimum 6 minutes. After that, the Soft Dry operation will be “ON” and “OFF” based on the setting temperature as shown in
below figure.
• However after 3 minutes of compressor off, during Soft Dry “OFF” (within 6 minutes Soft Dry restart control), the indoor unit will
start to operate at normal Cooling mode if the intake temperature is higher than Cooling “ON” point.
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8.3. Automatic Operation
• Automatic operation can be set using remote control.
• This operation starts to operate with indoor fan at SLo speed for 20 seconds to judge the intake air temperature.
• After judged the temperature, the operation mode is determined by referring to the below standard.
• Then, the unit start to operate at determined operation mode, until it is switched off using remote control, with the setting
temperature as shown in below table.
• The setting temperature for all the operations can be changed one level up or one level down from the standard temperature
as shown in below table by pressing on the temperature up or temperature down button at remote control.
• The operation mode judging temperature and standard setting temperature can be increased by 2°C permanently, by open the
circuit of JX1 at indoor electronic controller.
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8.4. Operation Control
8.4.1. Restart Control (Time Delay Safety Control)
• When the thermo-off temperature (temperature which compressor stops to operate) is reached during:-
− Cooling/Heating operation - the compressor stops for 3 minutes (minimum) before resume operation.
− Soft Dry operation - the compressor stops for 6 minutes (minimum) before resume operation.
• If the operation is stopped by the remote control, the compressor will not turn on within 3 minutes from the moment operation
stop, although the unit is turn on again within the period.
• This phenomenon is to balance the pressure inside the refrigerant cycle.
8.4.2. 7 Minutes Time Save Control
• The compressor will start automatically if it has stopped for 7 minutes and the intake air temperature falls between the
compressor ON temperature (A) and compressor OFF temperature (B) during the period.
• This phenomenon is to reduce the built up humidity inside a room.
8.4.3. 60 Seconds Forced Operation
• Once the air conditioner is turned on, the compressor will not stop within 60 seconds in a normal operation although the intake
air temperature has reached the thermo-off temperature. However, force stop by pressing the OFF/ON operation button at the
remote control is permitted.
• The reason for the compressor to force operate at minimum 60 seconds is to allow the refrigerant oil run in a full cycle and
return back to the outdoor unit.
8.4.4. Starting Current Control
• When the compressor, outdoor fan motor and indoor fan motor are simultaneously started, the indoor fan motor will start to
operate at 1.6 second later.
• The reason of the difference is to reduce the starting current flow.
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