TABLE OF CONTENTS
LG Model Name ...............................................................................................................................................3
Safety Precautions..........................................................................................................................................5
Dimensions .....................................................................................................................................................9
Symbols Used in this Manual .....................................................................................................................9
Indoor Unit..................................................................................................................................................9
Outdoor Unit.............................................................................................................................................10
Product Specifications ................................................................................................................................12
Installation .....................................................................................................................................................14
Select the Best Location .........................................................................................................................14
Piping Length and Elevation.....................................................................................................................14
How to Fix Installation Plate .....................................................................................................................15
Drill a Hole in the Wall ..............................................................................................................................15
Flaring Work.............................................................................................................................................16
Connection of Piping Indoor.....................................................................................................................17
Checking the Drainage.............................................................................................................................23
Form the Piping ........................................................................................................................................23
Air Purging ...............................................................................................................................................24
Air Purging with Vacuum Pump................................................................................................................24
Test Running ............................................................................................................................................26
Functions ......................................................................................................................................................27
Operation ......................................................................................................................................................30
Disassembly ..................................................................................................................................................45
Indoor Unit................................................................................................................................................45
Schematic Diagram.......................................................................................................................................48
Electric Control device..............................................................................................................................48
Wiring Diagram.........................................................................................................................................51
Components Location ..............................................................................................................................53
Troubleshooting Guide .................................................................................................................................57
Refrigeration Cycle Diagram ....................................................................................................................57
Pipe Length and the Elevation .................................................................................................................58
2-way, 3-way Valve ...................................................................................................................................59
Cycle Parts...............................................................................................................................................66
Self-diagnosis Function............................................................................................................................67
Electronic Parts ........................................................................................................................................69
Exploded View ..............................................................................................................................................80
Indoor Unit................................................................................................................................................80
Outdoor Unit.............................................................................................................................................81
Replacement Parts List ................................................................................................................................82
Indoor .......................................................................................................................................................82
Outdoor ....................................................................................................................................................83
2 Room Air Conditioner
Air Conditioner Service Manual