LG LA140CE - Table of Contents

2 Room Air Conditioner
Air Conditioner Service Manual
TABLE OF CONTENTS
LG Model Name ...............................................................................................................................................3
Safety Precautions..........................................................................................................................................4
Dimensions .....................................................................................................................................................8
Symbols used in this Manual......................................................................................................................8
Indoor Unit..................................................................................................................................................9
Outdoor Unit...............................................................................................................................................9
Product Specifications ................................................................................................................................10
Installation .....................................................................................................................................................11
Select the Best Location .........................................................................................................................11
Piping Length and Elevation.....................................................................................................................11
Fixing Installation Plate ............................................................................................................................12
Drill a Hole in the wall...............................................................................................................................12
Flaring Work.............................................................................................................................................13
Connecting the Piping ..............................................................................................................................14
Connecting the Cables.............................................................................................................................19
Connection method of the connecting cable(Example)............................................................................20
Connect the cable to the indoor unit.........................................................................................................21
Checking the Drainage.............................................................................................................................22
Forming the Piping ...................................................................................................................................23
Air Purging ...............................................................................................................................................24
Test Running ............................................................................................................................................26
Operation ......................................................................................................................................................28
Function of Controls .................................................................................................................................28
Display Function.......................................................................................................................................34
Self-diagnosis Function............................................................................................................................34
Remote Control Operations......................................................................................................................35
Disassembly ..................................................................................................................................................36
Indoor Unit................................................................................................................................................36
Schematic Diagram.......................................................................................................................................39
Electric control Device..............................................................................................................................39
Wiring Diagram.........................................................................................................................................41
Components Location ..............................................................................................................................42
Troubleshooting Guide .................................................................................................................................46
Refrigeration Cycle Diagram ....................................................................................................................46
2-way, 3-way Valve ...................................................................................................................................47
Cycle Parts...............................................................................................................................................52
Electronic Parts ........................................................................................................................................53
Exploded View & Replacement Parts List .................................................................................................62
Indoor Unit...............................................................................................................................................63
Outdoor Unit............................................................................................................................................64