Table of Contents
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TABLE OF CONTENTS
LG Model Name ...............................................................................................................................................3
Safety Precautions..........................................................................................................................................5
Dimensions....................................................................................................................................................10
Symbols Used in this Manual ...................................................................................................................10
Indoor Unit................................................................................................................................................10
Outdoor Unit.............................................................................................................................................13
Product Specifications .................................................................................................................................16
Installation .....................................................................................................................................................18
Selection of the Best Location..................................................................................................................18
Piping Length and Elevation.....................................................................................................................18
How to Fix Installation Plate .....................................................................................................................19
Drill a Hole in the Wall ..............................................................................................................................19
Drain hose junction...................................................................................................................................19
Flaring work and connection of piping .......................................................................................................20
Flaring work..............................................................................................................................................20
Connection of Piping Indoor.....................................................................................................................20
Connection of the Pipes-Outdoor.............................................................................................................24
Connecting the cable between indoor unit and outdoor unit ...................................................................25
Connect the Cable to the Indoor Unit. ......................................................................................................25
Connect the Cable to the Outdoor Unit ....................................................................................................26
Checking the drainage and forming the pipings........................................................................................27
Checking the Drainage.............................................................................................................................27
Form the Piping ........................................................................................................................................27
AIR PURGING ................................................................................................................................................28
Air purging................................................................................................................................................28
Air purging with vacuum pump .................................................................................................................28
Test Running .................................................................................................................................................30
Operation .......................................................................................................................................................31
Function of Controls .................................................................................................................................31
Display Function ......................................................................................................................................35
Self-diagnosis Function............................................................................................................................35
Remote Control Operations......................................................................................................................36
Disassembly ..................................................................................................................................................37
Indoor Unit................................................................................................................................................37
Schematic Diagram.......................................................................................................................................40
Electric Control Device .............................................................................................................................40
Wiring Diagram.........................................................................................................................................41
Components Location ..............................................................................................................................45
Troubleshooting Guide .................................................................................................................................47
Refrigeration Cycle Diagram ....................................................................................................................47
2-way, 3-way Valve .................................................................................................................................48
Cycle Parts...............................................................................................................................................54
Electronic Parts ........................................................................................................................................55
Exploded View...............................................................................................................................................62
Replacement Parts List ................................................................................................................................67
Air Conditioner Service Manual
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