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CONTENTS
1. PREFACE 2.4 REFRIGERATION CYCLE .................................13
1.1 SAFETY PRECAUTIONS ...............................2 2.4.1 CONDENSER ......................................13
1.2 INSULATION RESISTANCE TEST.................2 2.4.2 EVAPORATOR ....................................13
1.3 SPECIFICATIONS ..........................................3 2.4.3 CAPILLARY TUBE ...............................14
1.4 FEATURES .....................................................6 3. INSTALLATION
1.5 CONTROL LOCATIONS .................................6 3.1 SELECT THE BEST LOCATION ..................16
2. DISASSEMBLY INSTRUCTIONS 3.2 HOW TO INSTALL ........................................16
2.1 MECHANICAL PARTS ....................................9 3.2.1 WHEN USING GASKET ......................16
2.1.1 FRONT GRILLE .....................................9 3.2.2 WHEN USING INSTALLATION KITS ..16
2.1.2 CABINET................................................9 4. TROUBLESHOOTING GUIDE
2.1.3 CONTROL BOX .....................................9 4.1 OUTSIDE DIMENSIONS...............................20
2.2 AIR HANDLING PARTS ................................10 4.2 PIPING SYSTEM ..........................................21
2.2.1 AIR GUIDE ...........................................10 4.3 TROUBLESHOOTING GUIDE ......................22
2.2.2 BLOWER..............................................10
2.2.3 FAN, SHROUD ....................................11
5. SCHEMATIC DIAGRAM
5.1 CIRCUIT DIAGRAM ......................................31
2.3 ELECTRICAL PARTS ...................................11
5.2 ELECTRONIC CONTROL DEVICE ..............37
2.3.1 OVERLOAD PROTECTOR..................11
5.3 COMPONENTS LOCATION (OF MAIN P.C.B ASM) .......38
2.3.2 COMPRESSOR ...................................11
5.4 COMPONENTS LOCATION (OF DISPLAY P.C.B ASM) ......38
2.3.3 CAPACITOR ........................................12
5.5 ELECTRONIC CONTROL DEVICE .............39
2.3.4 POWER CORD ....................................12
5.6 COMPONENTS LOCATION(OF MAIN P.C.B ASM) ....40
2.3.5 THERMOSTAT ....................................12
5.7 COMPONENTS LOCATION(OF DISPLAY P.C.B ASM) ...40
2.3.6 ROTARY SWITCH ...............................12
2.3.7 MOTOR ................................................13 6. EXPLODED VIEW ..................................41
7. REPLACEMENT PARTS LIST .......42
1. PREFACE
This SERVICE MANUAL provides various service information, the mechanical and electrical parts etc.
This room air conditioner was manufactured and assembled under a strict quality control system.
The refrigerant is charged at the factory. Be sure to read the safety precautions prior to servicing the unit.
1.1 SAFETY PRECAUTIONS 1.2 INSULATION RESISTANCE TEST
1. When servicing the unit, set the ROTARY SWITCH 1. Unplug the power cord and connect a jumper
or POWER SWITCH to OFF and unplug the power between 2 pins (black and white).
cord. 2. The grounding conductor (green or green & yellow)
2. Observe the original lead dress. should be open.
If a short circuit is found, replace all parts which 3. Measure the resistance value with an ohm meter
have been overheated or damaged by the short between the jumpered lead and each exposed
circuit. metallic part on the equipment at all the positions
3. After servicing the unit, make an insulation resis- (except OFF or O) of the ROTARY SWITCH.
tance test to protect the customer from being 4. The value should be over 1M.
exposed to shock hazards.
--2--
1.3 SPECIFICATIONS
1.3.1 FOR LW-B0813CL, LW-B0812CL, LW-B0811CL, LW-B0810CL, LW-B0714CL, LW-B0712CL
MODELS
LW-B0811CL LW-B0813CL LW-B0810CL LW-B0812CL LW-B0712CL LW-B0714CL
ITEMS
POWER SUPPLY 1