Panasonic Cw Xc181ea Cw Xc241ea Repair Manual
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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 Information 23 14 Technical Data 24 15 Electronic Circuit / Main 25 16 Electronic Circuit / Indicator Complete 25 17 Electronic Circuit Diagram 26 18 Exploded View 29 19 Replacement Part List 30 Room Air Conditioner CONTENTS Page Page Order No. MAC0210065C3
1 Functions 1.1. Remote Control 2 CW-XC18 1EA / CW-XC24 1EA
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)--
DimensionsHeightmm
inches428
(16-7/8)428
(16-7/8)
Widthmm
inches660
(26)660
(26)
Depthmm
inches700
(27-9/16)700
(27-9/16)
Net Weightkg
lb67
14872
159
GrossWeightkg
lb-
--
-
Refrigerant (R-22)g
oz760
26.81020
36.0
•
• • • Specifications are subject to change without notice for further improvement.
4
CW-XC18 1EA / CW-XC24 1EA
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 DifferenceCurrent DrainDeterminationRemedy
•
• • • 8°C and over (14.4°F)
•
• • • As specified.
•
• • • Nothing wrong.
•
• • • None.
•
• • • 8°C and over (14.4°F)
•
• • • Higher than specified.
•
• • • Nothing wrong, outdoor
temperature is too high, heat
radiation is not efficient.
•
• • • Improve heat radiation.
•
• • • Under 8°C (14.4°F)
•
• • • Higher than specified.
•
• • • Something is preventing heat
radiation.
•
• • • Excessive amount of refrigerant.
•
• • • Improve heat radiation.
•
• • • Under 8°C (14.4°F)
•
• • • Lower than specified.
•
• • • Leakage of refrigerant or
refrigerant system is blocked.
•
• • • Locate and repair leak.
•
• • • Flush refrigeration cycle.
•
• • • Under 8°C (14.4°F)
•
• • • Higher than specified by
50%.
•
• • • Compressor defect or
compressor capacitor defect.
•
• • • Replace the compressor or
compressor capacitor.
Note: Room air humidity is relatively higher, the temperature difference will be smaller.
8
CW-XC18 1EA / CW-XC24 1EA
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
•
• • • Temporary or
Permanent?
•
• • • Customer Restarted
unit immediately without
waiting 3 minutes.
•
• • • Consult ELECTRICIAN,
if permanent.
•
• • • W AIT FOR 3
MINUTES.
•
• • • Repair Open Circuit.
•
• • • Repair or Replace it.
•
• • • Set it LOWER.
Fan motor won’t run
(Compressor run).
•
• • • Objects around Fan.
•
• • • RESISTANCE between
Wires.
•
• • • Capacitor Fan Motor.
•
• • • Locked Fan.
•
• • • Shorted / Open circuit.
•
• • • OHM Meter doesn’t
Deflect.
•
• • • Fan Hitting Cowling.
•
• • • Foreign Materials.
•
• • • Frozen Bearings.
•
• • • Shorted or Burned out.
•
• • • Capacitor Defect.
•
• • • Adjust Fan position
setting screw.
•
• • • Remove Foreign
Materials.
•
• • • Replace Fan Motor.
•
• • • Replace Fan Motor.
•
• • • Replace Capacitor Fan.
Compressor won’t run (Fan
run).
•
• • • Temperature setting.
•
• • • RESISTANCE between
Terminal and the
Compressor Body.
•
• • • RESISTANCE between
Terminals.
•
• • • Overload Protector.
•
• • • Capacitor Compressor.
•
• • • Thermostat.
•
• • • Higher than room temp.
•
• • • Shorted.
•
• • • Shorted.
•
• • • Infinity between
Terminals.
•
• • • OHM Meter doesn’t
deflect.
•
• • • No click heard.
•
• • • W inding Coil touched to
the compressor shell.
•
• • • Rear Shorted or Burnt
out.
•
• • • Rear Shorted or Burnt
out.
•
• • • Overload Protector
defect.
•
• • • Capacitor defect.
•
• • • Thermostat defect.
•
• • • Set it lower.
•
• • • Replace Compressor.
•
• • • Replace Compressor.
•
• • • Replace Overload
Protector.
•
• • • Replace Capacitor
Compressor.
•
• • • Replace Thermosta t.
Air Swing won’t run
•
• • • Air Swing Switch.
•
• • • OFF position.
•
• • • Set it ON.
•
• • • No contact at position.
•
• • • Open circuit
•
• • • Replace Air Swing
Switch.
•
• • • Resistance between
wires.
•
• • • OHM Meter doesn’t
deflect.
•
• • • Shorted or open circuit.
•
• • • Replace Air Swing
Motor.
9
CW-XC18 1EA / CW-XC2
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 outdoor
side.
•
• • • Obstacles.
•
• • • Clogged or dirty.
•
• • • Not satisfied.
•
• • • REFER TO
PERFORMANCE
EVALUATION.
•
• • • Reduces capacity.
•
• • • Restricted air
circulation.
•
• • • Restricted Heat
Exchanger.
•
• • • Restricted Heat
Exchanger.
•
• • • Restricted air
circulation.
•
• • • Leakage of refrigerant
or refrigeration system
is blocked.
•
• • • Set it lower.
•
• • • Close ventilation door.
•
• • • Clean or replace Air
Filter.
•
• • • Consider building an
AWNING.
•
• • • Remove obstacles or
reinstall unit.
•
• • • Clean the coils.
•
• • • Replace the unit with
bigger one.
•
• • • Locate repair leak.
•
• • • Flush refrigeration
cycle.
Noise
•
• • • Source of Noise
•
• • • Vibration.
•
• • • Intermittent Noise.
•
• • • Faulty installation.
•
• • • Fan hitting objects.
•
• • • Refrigerant tubing
touching each other.
•
• • • Fan splashing Drain
Water.
•
• • • Reinstall unit or
Reinforce the
installation.
•
• • • Adjust Fan position or
remove foreign
materials.
•
• • • About 1/2” Clearance
needed.
•
• • • Remove drain plug and
mount a drain pan to
remove the water.
•
• • • Set the Drain outlet
downward, so that the
Drain water can run off.
Water dripping inside room.
•
• • • Unit installation.
•
• • • Drain Tray-Styrofoam
pieces blocking drain
channel.
•
• • • Tilted to inside room.
•
• • • Clogged.
•
• • • Restricted run off.
•
• • • Clogged or blocked.
•
• • • Tilt unit to outside
slightly.
•
• • • Remove the foreign
materials.
Frozen Evaporator
•
• • • Temperature setting.
•
• • • Air Filter/Evaporator.
•
• • • Temperature difference
and running current.
•
• • • Set too low for ambient
conditions.
•
• • • Clogged or Dirty.
•
• • • REFER TO
PERFORMANCE
EVALUATION
•
• • • Outdoor temperature
low (Night time).
•
• • • Restricted air
circulation.
•
• • • Leakage of refrigerant
or refrigeration system
is blocked.
•
• • • Set the Main Control
knob to Fan to melt ice
and set the
Temperatu re Control to
higher temperature.
•
• • • Clean Air
filter/Evaporator.
•
• • • Locate and repair leak.
•
• • • Flush refrigeration
cycle.
10
CW-XC18 1EA / CW-XC24 1EA