Table of Contents
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TABLE OF CONTENTS
LG Model Name ...............................................................................................................................................3
Safety Precautions..........................................................................................................................................4
Dimensions......................................................................................................................................................8
Symbols used in this Manual......................................................................................................................8
Indoor Unit.................................................................................................................................................8
Outdoor Unit...............................................................................................................................................9
Installation .....................................................................................................................................................12
Select the best Location ..........................................................................................................................12
Piping Length and Elevation.....................................................................................................................13
Fixing Installation Plate ............................................................................................................................14
Drill a Hole in the Wall ..............................................................................................................................14
Flaring Work.............................................................................................................................................15
Connecting the Piping ..............................................................................................................................16
Connecting the Cables to the Indoor Unit ................................................................................................22
Connecting the Cables to the Outdoor Unit..............................................................................................23
Checking the Drainage.............................................................................................................................23
Forming the Piping ...................................................................................................................................24
Air Purging ...............................................................................................................................................25
Air Purging with Vacuum Pump................................................................................................................25
Test Running ............................................................................................................................................27
Operation .......................................................................................................................................................28
Function of Controls .................................................................................................................................28
Display Function ......................................................................................................................................35
Self-diagnosis Function............................................................................................................................36
Remote Control Operations......................................................................................................................37
Disassembly ..................................................................................................................................................38
Indoor Unit................................................................................................................................................38
Troubleshooting Guide .................................................................................................................................41
Refrigeration Cycle Diagram ....................................................................................................................41
2-way, 3-way Valve .................................................................................................................................42
Cycle Parts...............................................................................................................................................47
Electronic Parts ........................................................................................................................................48
Schematic Diagram.......................................................................................................................................55
Electric Control Device .............................................................................................................................55
Wiring Diagram.........................................................................................................................................56
Components Location ..............................................................................................................................58
Product Specifications .................................................................................................................................60
Exploded View...............................................................................................................................................62
Replacement Parts List ................................................................................................................................65
Air Conditioner Service Manual
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