Panasonic Cw Xc181ea Cw Xc241ea Repair Manual

 1 Functions  2
 2 Product Specifications 
4
 3 Dimensions 
5
 4 Refrigeration Cycle Diagram 
6
 5 Block Diagram 
6
 6 Wiring Diagram  
7
 7 Air Conditioner Performance Evaluation  
8
 8 Troubleshooting Guide 
9
 9 Operation Details 
11
 10  Operating Instructions 
14
© 2002 Matsushita Industrial Corp. Sdn. Bhd.
(11969-T). All rights reserved. Unauthorized copying
and distribution is a violation of law.
CW-XC181EA
CW-XC241EA
 11  Installation Instructions 19
 12  Care and Maintenance 
22
 13  Servicing...

1 Functions
1.1. Remote Control
2
CW-XC18 1EA / CW-XC24 1EA 

1.2. Main Unit
3
CW-XC18 1EA / CW-XC2 

2 Product Specifications
UnitCW-XC181EACW-XC241EA
PhaseØSingleSingle
VoltageV220220
FrequencyHz5050
Cooling CapacitykW
Btu/h5.28
18,0006.95
23,700
Running CurrentA9.713.7
Input PowerkW2.022.81
EERW/W2.612.47
Starting CurrentA4568
Compressor OutputkW1.72.20
Fan Motor OutputW110190
Noise LevelIndoor
(High / Low)db(A)51 / 4757 / 54
Outdoor
(High / Low)db(A)58 / 5463 / 60
Moisture RemovalL/h
Pt/h2.9
6.14.0
8.5
Air CirculationIndoorm3/min (ft3/min)13.3 (470)16.4 (580)
Outdoorm3/min (ft3/min)--...

3 Dimensions
3.1. Top View, Front View & Side View.
3.2. Unit.
ItemUnit: Inch (mm)
A - Width26” (660)
B - Height16-7/8” (428)
C - Depth27-9/16” (700)
D1-31/32” (50)
E8-21/32” (220)
F12-19/32” (320)
G4-11/32” (110)
H13-5/32” (334)
I5-3/16” (132)
J9-7/32” (234)
K3-5/32” (80)
L12-17/32” (318)
M10-5/16” (262)
N1-21/32” (42)
O12-17/32” (318)
P2-11/16” (68)
Q9-7/16” (240)
R7-15/32” (190)
5
CW-XC18 1EA / CW-XC2 

4 Refrigeration Cycle Diagram
CW-XC181EACW-XC241EA
ItemPressure (MPa)Temperatu re (°C)Pressure (MPa)Temperatu re (°C)
A2.0577.02.16 ~ 2.2670 ~ 86
B1.9544.72.06 ~ 2.1140 ~ 50
C0.519.50.53 ~ 0.617.5 ~ 11.5
D0.478.40.49 ~ 0.556~14
Note: Indoor temperature at 27°C (DB), 19°C (WB) and Outdoor at 35°C (DB), 24°C(WB) forCooling.
5 Block Diagram
6
CW-XC18 1EA / CW-XC24 1EA 

6 Wiring Diagram
6.1.1. Resistance of Fan Motor windings
and the rated Capacitor.
CW-XC181EA
ConnectionCWA951127
Blue - Yellow56.0Ω
Yellow - Brown7.39Ω
Brown - Orange15.4Ω
Red - Yellow62.4Ω
CapacitorCWA312095
(5µF, 440VAC)
6.1.2. Resistance of Compressor
windings and the rated Capacitor.
CW-XC181EA
Connection2JS330D3AA02
C-R1.289Ω
C-S2.848Ω
CapacitorCWA312079
(45µF, 370VAC)
Note: Resistance at 20°C of Ambient Temperature.
6.1. CW-XC181EA
7
CW-XC18 1EA / CW-XC2 

6.2.1. Resistance of Fan Motor windings
and the rated Capacitor
CW-XC241EA
ConnectionCWA921070
Blue - Yellow15.04Ω
Yellow - Brown2.22Ω
Brown - Orange5.69Ω
Red - Yellow20.79Ω
CapacitorCWA312096
(8µF, 400VAC)
6.2.2. Resistance of Compressor
windings and the rated Capacitor
CW-XC241EA
Connection2JS438D4CA02
C-R0.820Ω
C-S2.247Ω
CapacitorCWA312079
(45µF, 370VAC)
Note: Resistance at 20°C of Ambient Temperature.
6.2. CW-XC241EA
7 Air Conditioner Performance Evaluation
Intake & Discharge Air
Temperatu re...

8 Troubleshooting Guide
Warning: Disconnect unit from electrical powersupply before making any electrical checks.
TroubleCheckResultCausesRemedy
Fan Motor and Compressor
won’t run. 
    • 
• •  • Supply Voltage
 
    • 
• •  • Fuse Box or Circuit
Breaker.
 
    • 
• •  • Power cord or Wiring
Harness.
 
    • 
• •  • Temperature Setting. 
    • 
• •  • Less than 10% by
Rated.
 
    • 
• •  • Open Contacts.
 
    • 
• •  • Pulled loose or Shorted.
 
    • 
• •  • Higher than room
temperature 
    • 
• •  •...

TroubleCheckResultCausesRemedy
Insufficient cooling. 
    • 
• •  • Temperature Setting.
 
    • 
• •  • Ventilation door open.
 
    • 
• •  • Air filter dirty.
 
    • 
• •  • Location of installation.
 
    • 
• •  • Evaporator/Condenser
Coil obstructed.
 
    • 
• •  • Unit capacity for the
room too small.
 
    • 
• •  • Temperature difference
and running current. 
    • 
• •  • Higher than room
temperature.
 
    • 
• •  • Open.
 
    • 
• •  • Clogged or dirty.
 
    • 
• •  • Sunlight hitting...