Panasonic CW-XC103HU Service Manual
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Panasonic CW-XC103HU Service Manual

Panasonic CW-XC103HU Service Manual

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Service Manual

This service information is designed for experienced repair technicians only and is not designed for use by the general public.
It does not contain warnings or cautions to advise non-technical individuals of potential dangers in attempting to service a product.
Products powered by electricity should be serviced or repaired only by experienced professional technicians. Any attempt to
service or repair the product or products deal with in this service information by anyone else could result in serious injury or death.
WARNING
R
ORDER NO. RAC0209003C1
E9

Room Air Conditioner

CW-XC103HU
CW-XC118HU
CW-XC123HU
CW-XC143HU
© 2002 Matsushita Electric Industrial co., Ltd.
All rights reserved. Unauthorized copying and
distribution is violation of law.

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Summary of Contents for Panasonic CW-XC103HU

  • Page 1: Service Manual

    ORDER NO. RAC0209003C1 Service Manual Room Air Conditioner CW-XC103HU CW-XC118HU CW-XC123HU CW-XC143HU WARNING This service information is designed for experienced repair technicians only and is not designed for use by the general public. It does not contain warnings or cautions to advise non-technical individuals of potential dangers in attempting to service a product.

  • Page 2: Table Of Contents

    CONTENTS 1. PREFACE 3. INSTALLATION 1.1 SAFETY PRECAUTIONS........2 3.1 SELECT THE BEST LOCATION....13 1.2 SPECIFICATIONS...........3 3.2 CHECK OF INSTALLATION......13 1.3 FEATURES............4 3.3 HOW TO DRAIN..........13 3.4 HOW TO INSTALL ........14 2. DISASSEMBLY INSTRUCTIONS 3.4.1 WHEN USING GASKET.......14 2.1 MECHANICAL PARTS ........6 3.4.2 WHEN USING INSTALLATION KITS...14 2.1.1 FRONT GRILLE ........6 4.

  • Page 3: Specifications

    1.2 SPECIFICATIONS MODELS CW-XC103HU CW-XC118HU CW-XC123HU CW-XC143HU ITEMS 1, 115, 60 POWER SUPPLY Ø, V, Hz 9,800 11,800 12,000 13,800 COOLING CAPACITY Btu/h. POWER INPUT 1,090 1,110 1,280 10.0 10.2 11.8 RUNNING CURRENT 10.8 10.8 10.8 10.8 Btu/h.W DB : 80(26.7) WB : 67(19.4)

  • Page 4: Features

    1.3 FEATURES VENTILATION The ventilation lever must be in the CLOSE position in order to maintain the best cooling conditions. When fresh air is necessary in the room, set the ventilation lever to the OPEN position. The damper is opened and room air is drawn out. Part B Part A CLOSE...
  • Page 5 CW-XC103HU, CW-XC123HU, CW-XC143HU DISPLAY REMOTE CONTROL OPERATION TEMP TIMER SWING MODE FAN SPEED ECONOMY Precaution: The Remote Control unit will not function properly if strong light strikes the sensor window of the air conditioner or if there are obstacles between the Remote Control unit and the air conditioner.

  • Page 6: Disassembly Instructions

    2. DISASSEMBLY INSTRUCTIONS — Before the following disassembly, POWER SWITCH set to OFF and disconnect the power cord. 2.1 MECHANICAL PARTS 2.1.1 FRONT GRILLE 1. Open the lnlet grille upward . 2. Remove the screw which fastens the front grille. 3.

  • Page 7: Air Handling Parts

    2.2 AIR HANDLING PARTS 2.2.1 AIR GUIDE AND BLOWER 1. Remove the front grille. (Refer to section 2.1.1) 2. Remove the cabinet. (Refer to section 2.1.2) 3. Remove the control box. (Refer to section 2.1.3) 4. Remove the 4 screws which fasten the brace. 5.

  • Page 8: Shroud

    2.2.3 SHROUD 1. Remove the fan. (Refer to section 2.2.2) 2. Remove the screw which fastens the shroud. 3. Remove the shroud. (See Figure 8) 4. Re-install the component by referring to the removal procedure, above. Figure 8 2.3 ELECTRICAL PARTS 2.3.1 OVERLOAD PROTECTOR 1.

  • Page 9: Capacitor

    2.3.3 CAPACITOR 1. Remove the control box. (Refer to section 2.1.3) 2. Remove the knobs and the screw which fasten control panel from control box. 3. Remove the screw which located in the front. 4. Open the bottom side of control box. 5.

  • Page 10: Motor

    2.3.7 MOTOR 1. Remove the cabinet. (Refer to section 2.1.2) 2. Remove the evaporator. (Refer to section 2.2.1) 3. Remove the orifice. (Refer to section 2.2.1) 4. Remove the blower. (Refer to section 2.2.1) 5. Remove the fan. (Refer to section 2.2.2) 6.

  • Page 11: Capillary Tube

    2.4.3 CAPILLARY TUBE 3. Remove the capillary tube. 4. Re-install the component by referring to notes. 1. Remove the cabinet. (Refer to section 2.1.2) 2. After discharging the refrigerant completely, unbraze the interconnecting tube at the capillary tube.(See caution above) NOTES —...
  • Page 12 Equipment needed: Vacuum pump, Charging cylinder, Manifold gauge, Brazing equipment. Pin-off tool capable of making a vapor-proof seal, Leak detector, Tubing cutter, Hand Tools to remove components, Service valve. Figure 17B-Charging Figure 17A-Pulling Vacuum —12—...

  • Page 13: Installation

    3. INSTALLATION 3.1 SELECT THE BEST LOCATION 1.To prevent vibration and noise, make sure the unit FENCE AWNING is installed securely and firmly. 2.Install the unit where the sunlight does not shine COOLED AIR HEAT directly on the unit. RADIATION 3.The outside of the cabinet must extend outward for at least 30.48cm(12") and there should be no obstacles, such as a fence or wall, within...

  • Page 14: How To Install

    3.4 HOW TO INSTALL 3.4.1 WHEN USING GASKET RIGHT SIDE HORIZONTAL LINE 1. WINDOW (WIDTH-A, HEIGHT-B) 4. DETAILS 5.1 x 30 ROUND HEAD WOOD SCREWS 2. GASKET 3. WALL 625mm 392mm 280mm 30mm 0~25mm OVER 420mm 5~10mm -5~5mm ") ") ") ") (0~1")
  • Page 15 SUGGESTED TOOL REQUIREMENTS SCREWDRIVER(+, -), RULER, KNIFE, HAMMER, PENCIL, LEVEL Shipping screws PREPARATION OF CHASSIS 1. Remove the screws which fasten the cabinet at both sides and at the back. 2. Slide the unit out from the cabinet by gripping the base pan handle and pulling forward while bracing the cabinet.
  • Page 16 3. Loosely assemble the sill support using the parts Figure INDOOR OUTDOOR Sill Support Figure 23 Bolt 4. Select the position that will place the sill support near the outer most point on sill (See Figure Frame Guide Screw(Type A) NOTE: Be careful when you install the cabinet (frame guides are broken easily).

  • Page 17: Outside Dimensions

    10. Slide the unit into the cabinet.(See Fig. 27) CAUTION: For security purpose, reinstall screws(Type A) at the cabinet's sides. Power cord Screw(Type A) Figure 27 Screw(Type A) 11. Cut the foam-strip to the proper length and insert between the upper and lower window sash. Foam-Strip (See Fig.

  • Page 18: Piping System

    4.2 PIPING SYSTEM CONDENSER COIL CAPILLARY TUBE MOTOR COMPRESSOR BLOWER EVAPORATOR COIL Figure 33 is a brief description of the important components and their function in what is called the refrigeration system. This will help you to understand the refrigeration cycle and the flow of the refrigerant in the cooling cycle. ROOM AIR CONITIONER CYCLE OF REFRIGERATION EVAPORATOR COILS...

  • Page 19: Troubleshooting Guide

    4.3 TROUBLESHOOTING GUIDE In general, possible trouble is classified in two kinds. The one is called Starting Failure which is caused from an electrical defect, and the other is ineffective Air Conditioning caused by a defect in the refrigeration circuit and improper application. Unit runs but poor cooling.
  • Page 20 Fails to Start Check of power source. Check circuit breaker and fuse. Check of control switch Gas leakage of feeler bulb setting. of thermostat Check of control switch. Compressor only fails to Fan only fails to start. start. Improper wiring. Drop of power voltage.
  • Page 21 ELECTRICAL PARTS TROUBLESHOOTING GUIDE: CW-XC103HU, CW-XC118HU, CW-XC123HU, CW-XC143HU Possible Trouble 1 The unit does not operate. • Check the Fuse. • Check the Fuse. Is the Trans input power • Check the wiring diagram. • Check the wiring diagram. AC 115V? •...
  • Page 22 Possible Trouble 2 The compressor does not operate. Is setting • Select the setting Temp. to lower Number. Temp. lower than Room Temp.-0.5°C? Is the voltage No.10 Is the voltage N0.7 of Is the Unit for 3 minutes of IC01M 0V? IC01M DC 5V? delay? •...
  • Page 23 Possible Trouble 4 FAN does not operate. Is the voltage NO.1 or 2 or 4 • Exchange IC01M. of IC01M DC 5V? Is the voltage NO.13 or 15 or 16 • Exchange IC01M. of IC01M 0V? • Check the RY-Hi or RY-Med or RY-Low.
  • Page 24 Possible Trouble 5 Remote controller does not operate. Is the voltage of Battery • Exchange the battery. about over 2.3V? Is the voltage No.17 • Check the PCB pattern. of CN-DISP on Main PCB • Check the PCB pattern. Ass'y DC 5V? •...
  • Page 25 COMPLAINT CAUSE REMEDY Fan motor will not run. No power Check voltage at outlet. Correct if none. Power supply cord Check voltage to rotary switch. If none, check power supply cord. Replace cord if circuit is open. Wire disconnected or Connect wire.
  • Page 26 COMPLAINT CAUSE REMEDY Compressor will not run, Thermostat Check the position of knob If not at the coldest but fan motor runs. setting, advance the knob to this setting and restart unit. Check continuity of the thermostat. Replace thermostat if circuit is open. Capacitor (Discharge Check the capacitor.

  • Page 27: Schematic Diagram

    MOTOR RY-SYNC RY-COMP COMP. TRANS FORMER FUSE 250V/T2A (115V/T2A) 3854AR2330P WIRING DIAGRAM SYNC MOTOR : CW-XC103HU, CW-XC123HU, CW-XC143HU only. LOCATION DESCRIPTION Q'TY PER SET POWER CORD ASSY MOTOR ASSY COMPRESSOR MAIN P.W.B ASSY DISPLAY P.W.B ASSY THERMISTOR CAPACITOR CONNECTOR ASSY OVERLOAD PROTECTOR MOTOR ASSY, SYNC.

  • Page 28: Electronic Control Device

    MODEL: CW-XC118HU, CW-XC103HU, CW-XC123HU, CW-XC143HU LED out2 Option2 Option1 LED out1 LED out0 Pipe TH Room TH KEY1 KEY0 VAref SLIDE SW Osc out SEG-g Osc in /Reset SEG-f SEG-e TEST SEG-d SYNC MOTOR : CW-XC103HU, CW-XC123HU, CW-XC143HU only. —28—...

  • Page 29: Components Location(For Main P.c.b Asm)

    5.3 COMPONENTS LOCATION(FOR MAIN P.C.B ASM) MODEL: CW-XC118HU MODEL: CW-XC103HU, CW-XC123HU, CW-XC143HU —29—...

  • Page 30: Components Location(For Display P.c.b Asm)

    5.4 COMPONENTS LOCATION(FOR DISPLAY P.C.B ASM) MODEL: CW-XC118HU MODEL: CW-XC103HU, CW-XC123HU, CW-XC143HU —30—...

  • Page 31: Exploded View

    6. EXPLODED VIEW MODEL: CW-XC1118HU Ow ner' s Man ual —31—...
  • Page 32 MODEL: CW-XC103HU, CW-XC123HU, CW-XC143HU Ow ner' s Man ual —32—...

  • Page 33: Replacement Parts List

    7. REPLACEMENT PARTS LIST R : Recommendable parts. PART NO. LOCATION DESCRIPTION REMARK CW-XC103HU CW-XC118HU CW-XC123HU CW-XC143HU FRONT GRILLE ASS'Y CW353110188A CW353110188B CW353110188A CW353110188A GRILLE, FRONT CW353010136A CW353010136B CW353010136A CW353010136A INLET, GRILLE CW353010137A CW353010137B CW353010137A CW353010137A AIR FILTER ASS'Y CW5231R1152M CW5231R1152M CW5231R1152M CW5231R1152M...
  • Page 34 PART NO. LOCATION DESCRIPTION REMARK CW-XC103HU CW-XC118HU CW-XC123HU CW-XC143HU CONTROL BOX ASSEMBLY CW499520104Y CW499520104Z CW499520104X CW499520104X CONTROL BOX , SINGLE CW4994R1221B CW4994R1221A CW4994R1221B CW4994R1221B CONTROL PANEL CW372010003B CW372010003A CW372010003B CW372010003B ESCUTCHEON CW383120031Y CW383120031Z CW383120031Y CW383120031Y CAPACITOR CW6120R2194F CW0CZZ20001N CW0CZZ20001N CW0CZZ20001N...
  • Page 35 MEMO —35—...
  • Page 36 January, 2004 P/No.: 3828A20163L Printed in Korea...

This manual is also suitable for:

Cw-xc118huCw-xc123huCw-xc143hu

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