Panasonic Cw Xc71ya Cw Xc91ya Repair Manual

							11.1. Cleaning the Unit.
Clean the Cabine t, Front Grille with a mild soap or detergent
and lukewarm water.
11.2. Cleaning the Front Intake
Grille.
Gently wash with water and a sponge. (Do not use a scrubbing
brush or other hard cleanin g aids).
11.3. Cleaning the Air Filter.
 1. Pull and release the bottom of the Front Intake Grille.
 2. Lift up the Front Intake Grille at 45° angle until it is
supported by the stopper.
 3. Tilt up and pull out the Air Filter by the holder.
 4. Vacuum the front of the filter and then wash the back of it
with water. If it is badly soiled, wash with a mild household
detergent.
11 Care and Maintenance
Caution: Always turn off the air conditioner and the mainpowersupply before unplugging thepower cord to clean the
unit.
Note: Do not cleanwithbenzene, thinner, scouring powder or corrosive chemicals. Do not dry the Front Intake Panel or
the Air filter in direct sunlight. Exposure to direct sunlight may discolor or deform the panel.
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CW-XC71YA / CW-XC91YA 
						

							12.1. Removal of the Control Board
 1. Removal of the Front Intake Grille (refer to page 18).
 2. Remove the Air Filter (refer to page 18).
 3. Remove the 3 screws from the Front Grille.
 4. Remove the 3 screws from the Control Board (Front).
Release the earth wire (Yellow-Green) screw.
 5. Release the sensor thermostat from the holder sensor.
 6. Slide the Control Board (Main) outfrom the chassis.
 7. Press left and right side tab to release the Control Board
(Front).
 8. Electronic Controller (Indicator Complete) is attached inside
the Control Board (Front).
 
    • 
• •  • Control Board part location .
12 Service Information
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CW-XC71YA / CW-XC91YA 
						

							13 Exploded View
(Note)
 
    • 
• •  • The above explode d view is for the purpose of parts disassembly and replacement.
 
    • 
• •  • The non-numbered parts are not kept as standard service parts.
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CW-XC71YA / CW-XC91YA 
						

							14 Replacement Part List
Ref. No.Part Name & DescriptionQty.CW-XC71YACW-XC91YARemarks100Base Pan Complete1CWD52K288A←
←← ←101Bulkhead Complete1CWD53C1012←
←← ←102Air Guide - Propeller Fan1CWD31146←
←← ←103Bracket - Fan Motor1CWD54215←
←← ←106Top Plate1CWD64C1015←
←← ←109Drain Tray - Evaporator1CWH40215←
←← ←112Holder - Ventilation Lever1CWD91055←
←← ←113Ventilation Lever1CWH22031←
←← ←117Vane - Air Swing1CWE24330←
←← ←120Blower Wheel Complete1CWH01K069←
←← ←121Propeller Fan1CWH00052←
←← ←122Nut - Propeller Fan1CWH56032←
←← ←123Holder - Air Swing Motor1CWD911015←
←← ←124Holder - Capacitor (Compressor)1CWH301008CWH301003125Control Board (Main)1CWH102023←
←← ←126Control Board (Front)1CWH102126←
←← ←127Holder - Sensor (Pipe)1CWH32142←
←← ←128Holder - Sensor1CWH32085←
←← ←129Drain Plug - Base Pan1CWH521065←
←← ←130Chassis Locking Bracket (Left)1CWD932018←
←← ←130-AChassis Locking Bracket (Right)1CWD932019←
←← ←135Air Guide - Blower Wheel1CWD321038←
←← ←144Air Guide - Blower Wheel (Front)1CWD32170←
←← ←145Supporter - Air Swing1CWD931053←
←← ←200Compressor12RS122D5BB022PS156D5CA02201Bushing - Compressor Mount3CWH50072←
←← ←202Nut - Compressor Mount3CWH4582065CWH56000203Gasket - Terminal Cover1CWH7070603←
←← ←204Spring Holder - Overload Protector1CWH7041200←
←← ←205Terminal Cover - Compressor1CWH7070205U←
←← ←206Gasket - Nut (Washer)1CWH7070601←
←← ←207Nut - Terminal Cover1CWH7080300←
←← ←210Condenser1CWB32C1100CWB32C1102211Strainer1CWB11025←
←← ←212Capillary Tube1CWB15K1067CWB15K1071220Evaporator1CWB30C1170←
←← ←300Fan Motor1CWA921085←
←← ←301Overload Protector1CWA121081CWA121067303Capacitor - Compressor1CWA312074
(15µF, 400VAC)DS371306CPNA
(30µF, 370VAC)
304Main Control Switch1K0ABKH000003-308Sensor Complete1CWA50C2031←
←← ←309Transformer complete1CWA40C237←
←← ←311Power Supply Cord1CWA20C2243←
←← ←312Air Swing Motor1CWA98161←
←← ←328Electronic Controller (Main)1CWA741568←
←← ←329Electronic Controller (Indicator)1CWA742274←
←← ←330Remote Control Complete1CWA75C2203←
←← ←500Front Grille Complete1CWE11C2443←
←← ←501Air Filter1CWD00251←
←← ←503Intake Grille1CWE221048A←
←← ←504Catcher1CWE60060←
←← ←505Vane12CWE241045A←
←← ←507Link - Vanes1CWE261038←
←← ←600Cabinet Complete1CWE00C155←
←← ←610Drain Pan1CWH40175←
←← ←702Screw - Bracket Fan Motor4CWH55101←
←← ←703Screw - Blower Wheel1CWH4580326←
←← ←707Screw - Front Grille Mount1CWH82C1027←
←← ←710Screw - Drain Pan1CWG86C733←
←← ←711Screw - Chassis Locking Bracket1XTN4+8C←
←← ←712Screw - Unit Installation1CWG86C280←
←← ←715Operating Instructions1CWF563378←
←← ←
 
    • 
• •  • The above parts are kept for seven years in accordance with MEI service policy.
 
    • 
• •  • However, longer lead timewill be taken in supplyi ng the non-numbered parts.
 
    • 
• •  • All parts are supplie d from MAICO,Malaysia (Vendor Code: 061).
 
    • 
• •  • (A): Optional part.
 
    • 
• •  • (B): Supplie d through sales route.
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CW-XC71YA / CW-XC91YA 
						

							15 Electronic Circuit / Indicator Complete
16 Electronic Circuit / Main
25
CW-XC71YA / CW-XC91YA 
						

							 
    • 
• •  • Cooling
CW-XC71YA
 
    • 
• •  • Cooling Characteristics Vs. Outdoor Temperature.
 
    • 
• •  • Soft Dry
CW-XC91YA
 
    • 
• •  • Cooling Characteristics Vs. Outdoor Temperature.
17 Technical Data
17.1. Thermostat Characteristics.
17.2. Operation Characteristics.
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CW-XC71YA / CW-XC91YA 
						

							18 Electronic Circuit Diagram
18.1. Electronic Circuit Diagram (Main Unit).
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CW-XC71YA / CW-XC91YA 
						

							28
CW-XC71YA / CW-XC91YA 
						

							Before using the circuit diagram, read the followin g carefully.
 
    • 
• •  • Voltage measurement
Voltage has been measured with a digital tester when the
fan is set at high fan speed under the followin g conditio ns
without setting the timer.
Use them for servicing.
Voltage indication is in red.
Intake air
temperatureTemperature
settingDischarge air
temperaturePipe
temperature
Cooling27°C16°C17°C15°C
 
    • 
• •  • Indicatio ns for resistance
 
    − 
− −  − a. K...KΩ
b. W...WATT
c. M...MΩ
d. Not indicated...1/4W
 
    − 
− −  − Type
Not indicatedCarbon resistor
Tolerance (+-) 5%
Metal oxide resistor
Tolerance (+-) 1%
 
    • 
• •  • Indicatio ns for capacitor
Unit 
    − 
− −  − µ...µF
 
    − 
− −  − P...pF
Type 
    − 
− −  − Not indicated...ceramic capacitor
 
    − 
− −  − (S)...S series aluminium electrolytic capacitor
 
    − 
− −  − (Z)...Z series aluminium electrolytic capacitor
 
    − 
− −  − (SU)...SU series aluminium electrolytic capacitor
 
    − 
− −  − (K)...K series aluminium electrolytic capacitor
 
    − 
− −  − (P)...P series polyester system
 
    − 
− −  − (SXE)...SXE series aluminium electrolytic capacitor
 
    − 
− −  − (SRA)...SRA series aluminium electrolytic capacitor
 
    − 
− −  − (KME)...KME series aluminium electrolytic capacitor
 
    • 
• •  • Diode without indication...MA 165
 
    • 
• •  • Circuit Diagram is subject to change without notice for
further develop ment.
18.2. Electronic Circuit Diagram (Remote Control).
18.3. How to use electronic circuit diagram.
18.4. Timer Table
NameTimeTest Mode (Shortened CN-TEST pin)Remarks
Hour Timer1 hr.
10 min.
1 min.1 min.
10 sec.
1 sec.
Time delay Safety Control2 min. 58 sec.0 sec.
Forced Operation60 sec.0 sec.
Time Save Control7 min.42 sec.
Freeze Prevention Control3 min.0 sec.
Compressor Reverse Rotation Detection2 min.0 sec.
Starting Current Control1.6 sec.0 sec.
Powerful15 min.15 sec.
Auto Restart Control0 ~ 62 sec.0 ~ 6.2 sec.Add value to Time Delay Safety Control.
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CW-XC71YA / CW-XC91YA
[MAICO] Printed in Malaysia