Table Of Contents - LG AMNH076LQL0 Service Manual

Multi type Air Conditioner Service Manual

TABLE OF CONTENTS

Model Number Nomenclature ....................................................................................................................3
Symbols Used in this Manual ...................................................................................................................5
Safety Precautions......................................................................................................................................6
Dimensions................................................................................................................................................12
Indoor Unit..............................................................................................................................................12
Outdoor Unit ...........................................................................................................................................21
Product Specifications ............................................................................................................................22
Installation .................................................................................................................................................32
Select the best location of indoor unit ....................................................................................................32
How to fix ...............................................................................................................................................35
Piping and Drainage of Indoor Unit ........................................................................................................42
Connection of indoor unit piping.............................................................................................................43
Remote Controller Installation ................................................................................................................66
Connecting Pipings and the cable to Outdoor unit .................................................................................68
Checking the Drainage and Pipe forming...............................................................................................70
Maximum Length of Pipe and Extra Charge of Refrigerant Charge.......................................................75
Test Running ..........................................................................................................................................82
System Layout and Piping Length..........................................................................................................85
Installation ..............................................................................................................................................89
Installation of The Main Unit...................................................................................................................90
Connection of Piping ..............................................................................................................................91
Connection of Wiring ..............................................................................................................................92
Operation ..................................................................................................................................................93
Function of control..................................................................................................................................93
Function of Indoor Unit ...........................................................................................................................98
Function of Outdoor Unit ......................................................................................................................104
Remote Control Operation ...................................................................................................................105
Control Devices and Function ...............................................................................................................113
Simple Central Control .........................................................................................................................113
Term of Each part and Function ...........................................................................................................113
Electrical wiring ....................................................................................................................................114
Deluxe Central Control .........................................................................................................................120
Disassembly of the parts (Indoor unit) .................................................................................................126
Indoor unit ............................................................................................................................................126
Schematic Diagram.................................................................................................................................141
Electronic Control Device .....................................................................................................................141
Wiring Diagram.....................................................................................................................................150
Components Locations.........................................................................................................................154
Troubleshooting Guide ...........................................................................................................................172
Refrigeration Cycle Diagram ................................................................................................................172
Self-diagnosis Function ........................................................................................................................174
Cycle Troubleshooting Guide................................................................................................................175
Electronic Parts Troubleshooting Guide ...............................................................................................176
General Information..............................................................................................................................181
(3-way) Valve ...........................................................................................................................................200
Exploded View & Replacement Parts List ............................................................................................204
Indoor Unit ...........................................................................................................................................204
Outdoor Unit ........................................................................................................................................244
2 Multi type Air Conditioner