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Model
CS-W7NKD CS-W9NKD CS-W12NKD CS-W18NKD CS-W24NKD CU-W7NKD CU-W9NKD CU-W12NKD CU-W18NKD CU-W24NKD
Pages
116
Size
7.55 MB
Type
PDF
Document
Service Manual
Brand
Device
Air Conditioner / AIR CONDITIONER
File
cs-w7nkd-cs-w9nkd-cs-w12nkd-cs-w18nkd-cs-w24nkd-cu.pdf
Date

Panasonic CS-W7NKD / CS-W9NKD / CS-W12NKD / CS-W18NKD / CS-W24NKD / CU-W7NKD / CU-W9NKD / CU-W12NKD / CU-W18NKD / CU-W24NKD Service Manual ▷ View online

Indoor CS-W18NKD 
CS-W24NKD 
Model 
Outdoor CU-W18NKD 
CU-W24NKD 
Performance Test Condition 
NEW JIS 
NEW JIS 
Phase, Hz 
Single, 50 
Single, 50 
Power Supply 
220 230 220 230 
kW 
5.28 5.28 6.75 6.75 
BTU/h 
18000 18000 23000 23000 
Capacity 
kcal/h 
4540 4540 5810 5810 
Running Current 
8.0 
7.9 
11.2 
11.1 
Input 
Power W 
1.74k 1.77k 2.43k 2.47k 
W/W 
3.03 2.98 2.78 2.73 
EER 
BTU/hW 10.34 
10.17 
9.47 
9.31 
Power 
Factor 
99 97 99 97 
dB-A 
44 / 39 
44 / 39 
47 / 42 
47 / 42 
Indoor Noise (H / L) 
Power Level dB 
60 / - 
60 / - 
63 / - 
63 / - 
dB-A 
54 / - 
55 / - 
55 / - 
56 / - 
Cooling 
Outdoor Noise (H / L) 
Power Level dB 
70 / - 
71 / - 
71 / - 
72 / - 
kW 
5.53 5.58 7.22 7.22 
BTU/h 
18900 19000 24600 24600 
Capacity 
kcal/h 
4760 4800 6210 6210 
Running Current 
8.0 
7.9 
11.3 
11.2 
Input 
Power W 
1.71k 1.77k 2.43k 2.46k 
W/W 
3.23 3.15 2.97 2.93 
COP 
BTU/hW 
11.05 10.73 10.12 10.00 
Power 
Factor 
97 97 98 95 
dB-A 
45 / 40 
45 / 40 
48 / 42 
48 / 42 
Indoor Noise (H / L) 
Power Level dB 
61 / - 
61 / - 
64 / - 
64 / - 
dB-A 
55 / - 
56 / - 
56 /- 
57 / - 
Heating 
Outdoor Noise (H / L) 
Power Level dB 
71 / - 
72 / - 
72 / - 
73 / - 
Max Current (A) / Max Input Power (W) 
9.0 / 1.99k 
13.3 / 2.94k 
Starting Current (A) 
34.0 
58.0 
Type 
 
Hermetic Motor (Rotary) 
Hermetic Motor (Rotary) 
Motor Type 
 
Induction (2-poles) 
Induction (2-poles)  
Compressor 
Output Power 
1.5k 
1.9k 
Type 
 
Cross-flow Fan 
Cross-flow Fan 
Material  
ASG30K1 
ASG30K1 
Motor Type 
 
Transistor (8-poles) Transistor 
(8-poles) 
Input Power 
94.8 - 94.8 
94.8 - 94.8 
Output Power 
40 
40 
QLo rpm 
Cooling: 910 - 910 
Heating: 910 - 910  
Cooling: 1010 - 1010 
Heating: 1010 - 1010  
Lo rpm 
Cooling: 1000 - 1000 
Heating: 1060 - 1060 
Cooling: 1100 - 1100 
Heating: 1180 - 1180 
Me rpm 
Cooling: 1100 - 1100 
Heating: 1100 - 1100 
Cooling: 1220 - 1220 
Heating: 1220 - 1220 
Hi rpm 
Cooling: 1240 - 1240 
Heating: 1310 - 1310 
Cooling: 1390 - 1390 
Heating: 1530 - 1530 
Indoor Fan 
Speed 
SHi 
rpm 
Cooling: 1310 - 1310 
Cooling: 1530 - 1530 
Type 
 
Propeller Fan 
Propeller Fan 
Material 
 
PP Resin 
PP Resin 
Motor Type 
 
Induction (6-poles) Induction 
(6-poles) 
Input Power 
138.3 - 150.3 
138.3 - 150.3 
Output Power 
80 
80 
Lo 
rpm 
460 - 490 
460 - 490 
Outdoo
r Fa
Speed 
Hi 
rpm 
815 - 830 
815 - 830 
Moisture Removal 
L/h (Pt/h) 
2.9 (6.1) 
3.8 (8.0) 
 
 
10 
QLo m
3
/min (ft
3
/min) 
Cooling: 12.0 (425) - 12.0 (425) 
Heating: 11.9 (419) - 11.9 (419)  
Cooling: 13.5 (477) - 13.5 (477) 
Heating: 13.2 (466) - 13.2 (466)  
Lo m
3
/min (ft
3
/min) 
Cooling: 13.2 (467) - 13.2 (467) 
Heating: 13.8 (489) - 13.8 (489)  
Cooling: 14.7 (520) - 14.7 (520) 
Heating: 15.4 (545) - 15.4 (545)  
Me m
3
/min (ft
3
/min) 
Cooling: 14.5 (514) - 14.5 (514) 
Heating: 14.4 (507) - 14.4 (507)  
Cooling: 16.3 (577) - 16.3 (577) 
Heating: 15.9 (563) - 15.9 (563)  
Hi m
3
/min (ft
3
/min) 
Cooling: 16.4 (579) - 16.4 (579) 
Heating: 17.1 (604) - 17.1 (604) 
Cooling: 18.6 (657) - 18.6 (657) 
Heating: 20.0 (706) - 20.0 (706) 
Indoor Airflow 
SHi m
3
/min (ft
3
/min) 
Cooling: 17.3 (612) - 17.3 (612)  
Cooling: 20.5 (723) - 20.5 (723)  
Lo m
3
/min (ft
3
/min) 
29.9 (1056) - 31.9 (1126) 
29.9 (1056) - 31.9 (1126) 
Outdoor Airflow 
Hi m
3
/min (ft
3
/min) 
53.0 (1870) - 54.0 (1906) 
53.0 (1870) - 54.0 (1906) 
Control Device 
 
Capillary Tube 
Capillary Tube 
Refrigerant Oil 
cm
3
 
FV50S (670) 
FV50S (1130) 
Refrigeration 
Cycle 
Refrigerant Type 
g (oz) 
R410A,  1.64k (57.8) 
R410A,  2.03k (71.7) 
Height(I/D / O/D) 
mm (inch) 
290 (11-7/16) 
695 (27-3/8) 
290 (11-7/16) 
695 (27-3/8) 
Width (I/D / O/D) 
mm (inch) 
1070 (42-5/32) 
875 (34-15/32) 
1070 (42-5/32) 
875 (34-15/32) 
Dimension 
Depth (I/D / O/D) 
mm (inch) 
240 (9-15/32) 
320 (12-5/8) 
240 (9-15/32) 
320 (12-5/8) 
Weight 
Net (I/D / O/D) 
kg (lb) 
11 (24) 
51 (112) 
12 (26) 
61 (135) 
Pipe Diameter (Liquid / Gas) 
mm (inch) 
6.35 (1/4) / 12.70 (1/2) 
6.35 (1/4) / 15.88 (5/8) 
Standard length 
m (ft) 
5.0 (16.4) 
5.0 (16.4) 
Length range (min – max) 
m (ft) 
3 (9.8) ~ 25 (82.0) 
3 (9.8) ~ 25 (82.0) 
I/D & O/D Height different 
m (ft) 
20 (65.6) 
20 (65.6) 
Additional Gas Amount 
g/m (oz/ft) 
20 (0.2) 
30 (0.3) 
Piping 
Length for Additional Gas 
m (ft) 
7.5 (24.6) 
7.5 (24.6) 
Inner Diameter 
mm  
16.7 
16.7 
Drain Hose 
Length mm 
650 
650 
Fin Material 
 
Aluminium (Pre Coat) 
Aluminium (Pre Coat) 
Fin Type 
 
Slit Fin 
Slit Fin 
Row x Stage x FPI 
 
2 x 15 x 17 
2 x 15 x 17 
Indoor Heat 
Exchanger 
Size (W x H x L) 
mm 
810 x 315 x 25.4 
810 x 315 x 25.4 
Fin Material 
 
Aluminium (Blue Coated) 
Aluminium (Blue Coated) 
Fin Type 
 
Corrugate Fin 
Corrugate Fin 
Row x Stage x FPI 
 
2 x 26 x 17 
2 x 26 x 17 
Outdoor Heat 
Exchanger 
Size (W x H x L) 
mm 
44 x 660.4 x 796.7:831.3 
44 x 660.4 x 796.7:831.3 
Material  
Polypropelene 
Polypropelene 
Air Filter 
Type  
One-touch 
One-touch 
Power Supply 
 
Indoor 
Indoor 
Power Supply Cord 
16 
20 
Thermostat  
Protection Device 
 
 
Dry Bulb 
Wet Bulb 
Dry Bulb 
Wet Bulb 
Maximum 
32 23 32 23 
Cooling 
Minimum 
16 11 16 11 
Maximum 
30 - 30 - 
Indoor Operation 
Range 
Heating 
Minimum 
16 - 16 - 
Maximum 
43 26 43 26 
Cooling 
Minimum 
16 11 16 11 
Maximum 
24 18 24 18 
Outdoor 
Operation 
Range 
Heating 
Minimum 
-5 -6 -5 -6 
 
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. 
Heating capacities are based on indoor temperature of 20°C Dry Bulb (68°F Dry Bulb) and outdoor air temperature of 7°C Dry Bulb (44.6°F 
Dry Bulb), 6°C Wet Bulb (42.8°F Wet Bulb) 
3. 
Specifications are subjected to change without prior notice for further improvement. 
 
 
 
 
 
 
11 
3.   Features 
 
  E-ion Air Purifying System with Patrol Sensor 
o  Active e-ions are released to catch dust particles and bring them back the large positively charged filter. 
o  Patrol Sensor color changes to indicate the dirt level in the air 
 
  Long Installation Piping 
o  CS/CU-W7NK, CS/CU-W9NK long piping up to 10 meters. 
o  CS/CU-W12NK, long piping up to 15 meters. 
o  CS/CU-W18NK, CS/CU-W24NK long piping up to 25 meters. 
 
  Easy to use remote control 
 
 Quality 
Improvement 
o  Random auto restart after power failure for safety restart operation 
o Gas 
leakage 
protection 
o  Prevent compressor reverse cycle 
o  Inner protector to protect compressor 
o  Noise prevention during soft dry operation 
o  Blue coated condenser for high resistance to corrosion 
 
 Operation 
Improvement 
o  Quiet mode to reduce the indoor unit operating sound 
o  Powerful mode to reach the desired room temperature quickly 
o  24-hour timer setting 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
12 
4. Location of Controls and Components 
4.1 Indoor 
Unit 
 
4.2 Outdoor 
Unit 
 
4.3 Remote 
Control 
 
Page of 116
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