2 Room Air Conditioner
Air Conditioner Service Manual
TABLE OF CONTENTS
LG Model Name ...............................................................................................................................................3
Safety Precautions..........................................................................................................................................5
Dimensions ...................................................................................................................................................10
Symbols Used in this Manual...................................................................................................................10
Indoor Unit................................................................................................................................................10
Outdoor Unit.............................................................................................................................................11
Product Specifications ................................................................................................................................12
Installation .....................................................................................................................................................15
Selection of the Best Location..................................................................................................................15
Piping Length and Elevation.....................................................................................................................15
How to Fix Installation Plate.....................................................................................................................16
Drill a Hole in the Wall ..............................................................................................................................16
Flaring Work.............................................................................................................................................17
Connection of Piping Indoor.....................................................................................................................18
Connection of the Pipes-Outdoor.............................................................................................................21
Connect the Cable to the Indoor Unit.......................................................................................................22
Connect the Cable to the Outdoor Unit ....................................................................................................23
Checking the Drainage.............................................................................................................................24
Form the Piping........................................................................................................................................24
Test Running ............................................................................................................................................25
Operation ......................................................................................................................................................26
Function of Controls .................................................................................................................................26
Display Function ......................................................................................................................................30
Self-diagnosis Function............................................................................................................................30
Remote Control Operations......................................................................................................................31
Disassembly ..................................................................................................................................................32
Indoor Unit................................................................................................................................................32
Schematic Diagram.......................................................................................................................................35
Electric Control Device.............................................................................................................................35
Wiring Diagram.........................................................................................................................................37
Components Location ..............................................................................................................................39
Troubleshooting Guide ................................................................................................................................41
Refrigeration Cycle Diagram ....................................................................................................................41
Pipe Length and the Elevation .................................................................................................................42
2-way, 3-way Valve .................................................................................................................................43
Cycle Parts...............................................................................................................................................49
Electronic Parts ........................................................................................................................................50
Exploded View ..............................................................................................................................................57
Replacement Parts List ................................................................................................................................60
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