Panasonic Cs C9dkzw Cu 2c18dkh Cu 3c20dkh Repair Manual

							 1 Features 2
 2 Functions 
3
 3 Product Specifications 
6
 3.1. CS-C9DKZWCU-2C18DKH 
6
 3.2. CS-C9DKZWCU-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  ServicingInformation 
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, tobaccosmoke andtinyparticles
 − 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 malfun ction 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
2
CS-C9DKZW CU-2C18DKH / CS-C9DKZW CU-3C20DKH 
						

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

							 
 
 
  
 
 
 
 
 
4
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
5
CS-C9DKZW CU-2C18DKH / CS-C9DKZW CU-3C20DKH 
						

							3 Product Specifications
3.1. CS-C9DKZW CU-2C18DKH
UnitIndoor unitOutdoor unit
Power Source (Phase, Voltage, Cycle)
ø, V, Hz
Single
240 - 220
50
Cooling CapacitykW
(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 Removall/h
(Pint/h)(1 unit)1.5
(3.2)(2 units)2.6
(5.5)
Airflow MethodOUTLET
INTAKE
SIDE VIEWTOP VIEW
Air VolumeLom3/min (cfm)5.6 (200) - 5.6 (200)—
Mem3/min (cfm)6.8 (240) - 6.8 (240)—
Him3/min (cfm)8.6 (300) - 8.6 (300)32.6 (1,150) - 31.1 (1,100)
SHim3/min (cfm)9.3 (330) - 9.3 (330)—
Noise LeveldB (A)High 36 - 36, Low 26 - 26High 55 - 53
Power level dBHigh 49 - 49High 70 - 68
Electrical DataInput PowerkW(1 unit)
770 - 730(2 units)
1,540 - 1,460
Running CurrentA(1 unit)
3.3 - 3.5(2 units)
6.6 - 7.0
EERW/W (BTU/hW)(1 unit)3.17 - 3.29 (10.8 -
11.2)(2 units)3.17 - 3.29 (10.8 -
11.2)
Starting CurrentA15.0
Piping Connection Port
(Flare piping)inch
inchG ; 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
inchG (gas side) ; 3/8”
L (liquid side) ; 1/4”G (gas side) ; 3/8”
L (liquid side) ; 1/4”
Drain
HoseInner diametermm12—
Lengthm0.7—
DimensionsHeightinch (mm)11 - 1/32 (280)25 - 21/32 (651)
Widthinch (mm)31 - 15/32 (799)35 - 3/16 (893)
Depthinch (mm)7 - 7/32 (183)13 - 19/32 (345)
Net Weightlb (kg)20 (9.0)137 (62)
CompressorDescription—Rotary (1 cylinder)
rolling piston type
MotorType—Induction (2-poles)
RatedOutputW—650
6
CS-C9DKZW CU-2C18DKH / CS-C9DKZW CU-3C20DKH 
						

							UnitIndoor unitOutdoor unit
Fan MotorDescriptionCross-flow FanPropeller Fan
MaterialAS + Glass Fiber 20%AS + Glass Fiber 20%
TypeInduction (4-poles)Induction (6-poles)
InputW29.3 - 26.3134.6 - 118.8
Rated OutputW1550
Fan SpeedLowrpm750 - 750—
Mediumrpm920 - 920—
Highrpm1,160 - 1,160760 - 720
SuperHighrpm1,250 - 1,250—
Heat ExchangerDescriptionEvaporatorCondenser
Tube materialCopperCopper
Fin materialAluminiumAluminium (Blue Coat)
Fin TypeSlit FinLouver Fin
Row / Stage(Plate fin configuration, forced draft)
2×152×24
FPI1916
Size (W × H × L)mm610 × 315 × 25.4560 × 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 TubeLengthmm—680
Flow Ratel/min—11.5
Inner Diametermm—1.5
Air FilterMaterial
StyleP.P.
Honeycomb—
Capacity ControlCapillary Tube
Compressor CapacitorµF, VAC—25 µF, 370/400 VAC
Fan Motor CapacitorµF, VAC1.5 µF, 440 VAC3.0 µF, 450 VAC
Note:
 • Specifications are subjected tochange without prior notice for further improvement.
7
CS-C9DKZW CU-2C18DKH / CS-C9DKZW CU-3C20DKH 
						

							3.2. CS-C9DKZW CU-3C20DKH
Indoor unitOutdoor unit
UnitSingle Operation
(A, B1, B2)Single OperationDouble OperationTriple 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 UnitkW
(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 Removall/h
(Pint/h)—1.5
(3.2)1.6
(3.4)2.1
(4.4)2.8
(5.9)3.2
(6.8)
Airflow MethodOUTLET
INTAKE
SIDE VIEWTOP VIEW
Air VolumeLom3/min
(cfm)5.6 - 5.6
(200 - 200)—
Mem3/min
(cfm)6.8 - 6.8
(240 - 240)—
Him3/min
(cfm)8.6 - 8.6
(300 - 300)36.8 (1,300) - 35.1 (1,240)
SHim3/min
(cfm)9.3 - 9.3
(330 - 330)—
Noise LeveldB (A)High 36 - 36,
Low 26 - 26High 56 - 54
Power
level dBHigh 49 - 49High 71 - 69
Electrical
DataInput PowerkW50 - 50820-7701,120-1,0701,210-1,1501,850-1,7501,920-1,840
Running CurrentA0.23 - 0.233.6 - 3.74.9 - 5.15.3 - 5.58.1 - 8.38.3 - 8.7
EERW/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 CurrentA(A unit) 15.0 - 15.0(B unit) 21.0 - 21.0
Piping Connection Port
(Flare piping)inch
inchG ; 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
inchG (gas side) ; 3/8”
L (liquid side) ;
1/4”G (gas side) ; 3/8”
L (liquid side) ; 1/4”
Drain
HoseInner diametermm12—
Lengthm0.7—
DimensionsHeightinch (mm)11 - 1/32 (280)25 - 21/32 (651)
Widthinch (mm)31 - 15/32 (799)35 - 3/16 (893)
Depthinch (mm)7 - 7/32 (183)13 - 19/32 (345)
Net Weightlb (kg)20 (9.0)146 (66)
CompressorDescription—Rotary (1 cylinder)
rolling piston type
MotorType—Induction (2-poles)
RatedOutputW—(A unit) 650(B unit) 900
8
CS-C9DKZW CU-2C18DKH / CS-C9DKZW CU-3C20DKH 
						

							Indoor unitOutdoor unit
Fan MotorDescriptionCross-flow FanPropeller Fan
MaterialAS + Glass Fiber
20%AS + Glass Fiber 20%
TypeInduction (4-poles)Induction (6-poles)
InputW29.3 - 26.3134.0 - 118.7
RatedOutputW1550
Fan
SpeedLowrpm750 - 750—
Mediumrpm920 - 920—
Highrpm1,160 - 1,160765 - 725
SuperHighrpm1,250 - 1,250—
Heat
ExchangerDescriptionEvaporatorCondenser
Tube materialCopperCopper
Fin materialAluminiumAluminium (Blue Coat)
Fin TypeSlit FinLouver Fin
Row / Stage(Plate fin configuration, forced draft)
2×152×24
FPI1916
Size (W × H × L)mm610 × 315 × 25.4756.0
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
TubeLengthmm—935, 920, 1,170
Flow Ratel/min—20.0, 15.5, 10.0
Inner Diametermm—2.0, 1.8, 1.6
Air FilterMaterial
StyleP.P.
Honeycomb—
Capacity ControlCapillary Tube
Compressor CapacitorµF, VAC—25 µF, 440 VAC
Fan Motor CapacitorµF, VAC1.5 µF, 440 VAC3.0 µF, 450 VAC
Note:
 • Specifications are subjected tochange without prior notice for further improvement.
9
CS-C9DKZW CU-2C18DKH / CS-C9DKZW CU-3C20DKH 
						

							4 Dimensions
4.1. Indoor Unit & Remote Control
10
CS-C9DKZW CU-2C18DKH / CS-C9DKZW CU-3C20DKH