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TABLE OF CONTENTS
Safety Instructions ................................................................................ 3
General Data ..........................................................................................8
Unit Nomenclature ...............................................................................8
Single Zone High Effi ciency Unit Specifi cations .................................. 9
Single Zone Standard Unit Specifi cations ..........................................11
Single Zone Extended Pipe Unit Specifi cations ................................ 13
Single Zone Mega Unit Specifi cations ..........................................15-18
Single Zone Mega115V Unit Specifi cations ....................................... 19
Electrical ............................................................................................ 21
R410A Refrigerant ............................................................................. 22
General Installation Guidelines .......................................................... 23
Location Selection ............................................................................. 23
Oceanside Applications ..................................................................... 24
Mounting Bolt Location ......................................................................25
Required Clearances ......................................................................... 26
Mounting of Indoor Unit Installation Plate .....................................27-31
Mounting of Indoor Unit ..................................................................... 32
Piping Preparation .............................................................................33
Piping Materials and Handling ......................................................35-39
Piping Support, Elbow Usage ............................................................ 40
Refrigerant Piping System Layout .....................................................41
Refrigerant Piping Connections ......................................................... 42
Refrigerant Piping System Limitations ............................................... 42
Installation Overview ......................................................................... 44
Directional Pipe Formation ................................................................ 45
Drain Hose ......................................................................................... 46
Outdoor Unit Connections ............................................................47-51
Indoor Unit Connections ....................................................................52
Indoor Unit Connections - Conduit Bracket Placement ..................... 53
Bundling and Cutting Line ................................................................. 54
Refrigerant Piping Insulation ........................................................55-57
Air Purging ......................................................................................... 58
Leak Test/Soap Method Check .......................................................... 59
Evacuation of Lines ........................................................................... 60
Finishing Up ....................................................................................... 60
Remote Controller ............................................................................. 61
Pump Down, Cooling Only Mode ...................................................... 62
Electrical Wiring ..................................................................................63
General Information and Safety Guidelines ....................................... 63
Power Wiring Specifi cations and Best Practices ...............................64
Controllers ......................................................................................... 66
Indoor Unit Electrical Connections ...............................................67-71
Outdoor Unit Electrical Connections .............................................72-75
Self Diagnosis Functions ..................................................................76
LG SIMS - Self Diagnosis Functions ................................................ 78
Troubleshooting .................................................................................. 80
Error Codes .................................................................................80-82
Refrigerant Leaks .............................................................................. 83
Installation Checklist ........................................................................... 84
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