ritetemp HW500CMY8 User manual

Room Air Conditioner
SERVICE MANUAL
MODELS:HW500CMY8
CAUTION
website http://www.lgservice.com
• BEFORE SERVICING THE UNIT, READ THE SAFETY
PRECAUTIONS IN THIS MANUAL.
• ONLY FOR AUTHORIZED SERVICE PERSONNEL.

2Room Air Conditioner
Air Conditioner Service Manual
TABLE OF CONTENTS
Safety Precautions..........................................................................................................................................3
Dimensions .....................................................................................................................................................7
Outside Dimensions...................................................................................................................................7
Product Specifications ..................................................................................................................................8
Installation.......................................................................................................................................................9
Select the Best Location ...........................................................................................................................9
How to Install..............................................................................................................................................9
Installation Kits Content(Some Models)...................................................................................................10
How to Secure the Drain Pipe..................................................................................................................11
Operation ......................................................................................................................................................12
Features...................................................................................................................................................12
Insulation Resistance Test........................................................................................................................12
About the Controls on the Air conditioner ................................................................................................12
Disassembly ..................................................................................................................................................13
Mechanical Parts......................................................................................................................................13
Air Handling Parts....................................................................................................................................14
Electrical Parts.........................................................................................................................................15
Refrigerating Cycle...................................................................................................................................16
Schematic Diagram.......................................................................................................................................19
Wiring Diagram.........................................................................................................................................19
Troubleshooting Guide.................................................................................................................................20
Piping System ..........................................................................................................................................20
Troubleshooting Guide .............................................................................................................................21
Room Air Conditioner Voltage Limits........................................................................................................23
Exploded View ..............................................................................................................................................26
Replacement Parts List ................................................................................................................................27

Service Manual 3
Safety Precautions
Safety Precautions
To prevent injury to the user or other people and property damage, the following instructions must
be followed.
■Incorrect operation due to ignoring instruction will cause harm or damage. The seriousness is
classified by the following indications.
■Meanings of symbols used in this manual are as shown below.
WARNING
CAUTION
This symbol indicates the possibility of death or serious injury.
This symbol indicates the possibility of injury or damage to property only.
Be sure not to do.
Be sure to follow the instruction.
••
••
Gasolin
WARNING
Installation
Always install the expansion panel(s).
Improper assembly or installation may cause
incorrect operation, including injury, fire, and
electric shock hazards.
Do not place the power cord near a heater.
It may cause fire and electric shock.
Do not use the power cord near flammable
gas or combustibles such as gasoline,
benzene, thinner, etc.
It may cause explosion or fire.
Do not disassemble or modify products.
It may cause electric shock and failure.

4Room Air Conditioner
Safety Precautions
Operation
Plug in the power plug
properly.
Otherwise, it will cause
electric shock or fire.
Do not operate or stop the
unit by inserting or pulling
out the power plug.
It will cause electric shock or
fire.
Do not damage or use an
unspecified power cord.
It will cause electric shock or
fire.
Do not modify power cord
length.
It will cause electric shock or
fire.
Use the air conditioner on a
single outlet circuit. (See page 7.)
Do not share the outlet with
other appliances.
It will cause electric shock or
fire.
Always plug into a
grounded outlet.
No grounding may cause
electric shock.
Unplug the unit if strange
sounds, odors, or smoke
come from it.
Otherwise it will cause fire
and electric shock accident.
Do not use the socket if it is
loose or damaged.
It may cause fire and electric
shock.
Do not operate with wet
hands or in damp
environment.
It may cause electric shock.
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ON

Owner s Manual 5
ENGLISH
Safety Precautions
Never touch the metal parts
of the unit when removing
the filter.
They are sharp and may
cause injury.
Do not block the inlet or
outlet.
It may cause failure of appliance
or performance deteriorate.
Ensure that the outer case
is not damaged by age or
wear.
If the outer case is damaged,
it must be repaired or
replaced immediately.
Leaving it damaged could
result in the air conditioner
falling out of the window,
creating a safety hazard.
,
Close all doors, windows and other
outside openings to the room.
The air conditioner must be operated in
a enclosed area to be most effective.
Ventilate before operating air conditioner
when gas goes out.
It may cause explosion, fire,and burn.

Installation
CAUTION
Do not clean the air conditioner with 
water.
It will cause electric shock or failure of 
machine.
If water enters the product, turn off the 
power switch of the main body of 
appliance. Contact service center after
taking the power plug out from the socket.
Water may enter the unit and degrage the 
insulation.It may cause an electric shock.
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