Table Of Contents - LG LS301HE Service Manual

TABLE OF CONTENTS

Safety Precautions..........................................................................................................................................3
Dimensions......................................................................................................................................................8
Symbols Used in this Manual .....................................................................................................................8
Indoor Unit..................................................................................................................................................8
Outdoor Unit...............................................................................................................................................9
Product Specifications .................................................................................................................................10
Installation .....................................................................................................................................................12
Piping Length and Elevation.....................................................................................................................12
How to Fix Installation Plate .....................................................................................................................13
Drill a Hole in the Wall ..............................................................................................................................13
Flaring work and connection of piping .......................................................................................................14
Flaring work..............................................................................................................................................14
Connection of piping-Indoor .....................................................................................................................15
Connection of the drain hose ...................................................................................................................20
Connection of piping-Outdoor ..................................................................................................................20
Connecting the cable between indoor unit and outdoor unit ...................................................................21
Connect the cable to the Indoor unit. .......................................................................................................21
Connect the cable to the outdoor unit ......................................................................................................22
Checking the drainage and forming the pipings........................................................................................23
Checking the drainage .............................................................................................................................23
Form the piping ........................................................................................................................................24
AIR PURGING ................................................................................................................................................25
Air purging................................................................................................................................................25
Test Running .................................................................................................................................................27
Operation .......................................................................................................................................................28
Operation .................................................................................................................................................28
Functions..................................................................................................................................................28
The function of main control.....................................................................................................................30
Display Function ......................................................................................................................................36
Self-diagnosis Function............................................................................................................................36
Name and Function-Remote Control (Cooling Models) ...........................................................................37
Name and Function-Remote Control (Heat Pump Models) ....................................................................38
Disassembly ..................................................................................................................................................39
Indoor Unit................................................................................................................................................39
Schematic Diagram.......................................................................................................................................43
Heat Pump/Cooling Only Series(Indoor Unit) ..........................................................................................43
Heat Pump Series (Outdoor Unit) ............................................................................................................44
INDOOR UNIT P.W.B. ASSEMBLY ..........................................................................................................45
OUTDOOR UNIT P.W.B. ASSEMBLY ......................................................................................................46
DISPLAY P.W.B. ASM ..............................................................................................................................47
Wiring Diagram.........................................................................................................................................48
Troubleshooting Guide .................................................................................................................................48
Refrigeration Cycle Diagram ....................................................................................................................50
Pipe length and the elevation ...................................................................................................................51
3-way Valve ..............................................................................................................................................52
Cycle Parts...............................................................................................................................................57
Electronic Parts ........................................................................................................................................58
Exploded View...............................................................................................................................................68
Replacement Parts List ................................................................................................................................69
2 Room Air Conditioner
Air Conditioner Service Manual