Panasonic Cw Xc91yh Repair Manual

ModelCW -XC91YH
PhaseSingle
Voltage240 - 220 V
Frequency50 Hz
Cooling Capacity2.67 - 2.64 kW
9,100 - 9,000 Btu/h
Running Current4.3 - 4.4 A
Input Power975 - 935 W
EER2.74 - 2.82 W/W
Starting Current16.9 A
Compressor Output750 W
Noise LevelIndoor (High / Low):
49 / 45 - 47 / 43
Outdoor (High / Low):
58 / 54 - 57 / 53
Moisture Removal1.6 Ltr/h
3.4 Pint/h
© 2001 Matsushita Industrial Corp. Sdn. Bhd.
(11969-T). All rights reserved. Unauthorized copying
and distribution is a violation of law.
CW-XC91YH...

 1 Functions 2
 2 Dimensions 
4
 3 Refrigeration Cycle Diagram 
5
 4 Block Diagram 
5
 5 Wiring Diagram 
6
 6 Air Conditioner Performance Evaluation  
6
 7 Troubleshooting Guide 
7
 8 Operation Details 
8
 9 Operating Instructions 
11 10  How To Install 
16
 11  Care and Maintenance 
20
 12  Service Information 
21
 13  Exploded View 
22
 14  Replacement Part List 
23
 15  Electronic Circuit / Indicator Complete 
24
 16  Electronic Circuit / Main 
24
 17  Technical Data 
25
 18  Electronic Circuit...

1.2. Main Unit
3
CW-XC91YH 

2 Dimensions
2.1. CW-XC91YH
2.1.1. Top View, Front View and Side View.
ItemUnit: Inch (mm)
A - Width17-23/32” (450)
B - Height13-5/8” (346)
C - Depth22-27/32” (580)
D21-1/4” (540)
E5-21/32” (144)
F6-1/32” (153)
G1-31/32” (50)
H3-27/32” (98)
I1-3/16” (30)
J3-27/32” (98)
K1-9/16” (40)
L9-7/32” (234)
M3-27/32” (98)
N2-31/32” (75)
O1-11/16” (43)
P3-17/32” (90)
Q0-29/32” (23)
R10-11/32” (263)
4
CW-XC91YH 

3.1. CW-XC91YH3.2. CW-XC91YH
ItemPressure (MPa)Temperature (°C)
A2.00 ~ 2.2072 ~ 87
B1.95 ~ 2.1535 ~ 45
C0.54 ~ 0.607~13
D0.51 ~ 0.579~17
Note: Indoor temperature at 27°C (DB), 19°C(WB) andOutdoor at
35°C (DB), 24°C(WB).
3 Refrigeration Cycle Diagram
4 Block Diagram
4.1. CW-XC91YH
5
CW-XC91YH 

5.2. Resistance of Fan Motor
windings and the rated
Capacitor.
ModelCW-XC91YH
ConnectionCWA921091
Blue - Yellow78.7Ω
Yellow - Brown8.18Ω
Brown - Orange57.1Ω
Red - Yellow117.2Ω
5.3. Resistance of Compressor
windings and the rated
Capacitor.
ModelCW-XC91YH
Connection2PS156D5EA02
C-R3.597Ω
C-S4.868Ω
CapacitorDS371306CPNA
(25µF, 370VAC)
Note: Resistance at 20°C of Ambient Temperature.
5 Wiring Diagram
5.1. CW-XC91YH
6 Air Conditioner Performance Evaluation
Suction & Discharge Air
Temperature...

7 Troubleshooting Guide
Warning: Disconnect unit from electrical powersupply before making any electrical checks.
TroubleCheckResultCauseRemedy
Fan Motor and
Compressor won’t run. 
    • 
• •  • Supply Voltage
 
    • 
• •  • Fuse Box or Circuit
Breaker.
 
    • 
• •  • Power cord orWiring
Harness.
 
    • 
• •  • Temp. Setting. 
    • 
• •  • Less than 10% by
Rated.
 
    • 
• •  • Open Contacts.
 
    • 
• •  • Pulled loose or
Shorted.
 
    • 
• •  • Higher than ROOM
TEMP. 
    • 
• •  • Customer...

8 Operation Details
8.1. Fan Mode Operation
 
    • 
• •  • Fan operation only. Fan in operation according to Remote Control or Main Unit (Touch Control Panel) setting.
8.1.1. Manual Setting of Fan Speed
 
    • 
• •  • Basic Fan Speed can be manually adjusted (Lo or Hi) by using the Fan Speed Selection Button/Pad at Remote Control or Main
Unit (Touch Control Panel).
8.2. Cooling Mode Operation
 
    • 
• •  • Cooling in operation according to Remote Control or Main Unit (Touch Control Panel) setting....

8.2.6. Cooling Operation Time Diagram
8.3. Powerful Operation
 
    • 
• •  • Purpose of this operation is to obtain the setting temperature quickly.
 
    • 
• •  • W hen the Powerful is set during Cooling Operation, the set temperature will be automatically decreased 3°C against the present
setting temperature (Lowest limit temperature: 16°C).
 
    • 
• •  • This operation automatically will be running under Super High Fan Speed.
 
    • 
• •  • Sound emitted by the unit will be increased during...

8.5. Fan Speed Control
 
    • 
• •  • Manual Fan Speed Control
Basic fan speed adjustment (2 setting, from Lo to Hi) can be carried out by using the Fan Speed Selection Button/Pad at the
Remote Control or Main Unit (Touch Control Panel).
8.6. Airflow Direction Control
8.6.1. Horizontal Airflow Direction
When AirSwing Button/Pad is pressed with Remote Control
or Main Unit (Touch Control Panel) in the Auto Airflow, the
airflow direction louver swings side to side within the full swing
range as shown in...