Table of Contents
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Safety Instructions ............................................................................. 3-6
General Data ..................................................................................... 8-11
Unit Nomenclature ............................................................................... 8
Parts .................................................................................................... 9
.................................................................................... 10
Electrical .............................................................................................11
General Installation Guidelines ..................................................... 12-22
Outdoor Unit Location Selection ................................................... 12-14
Required Outdoor Unit Clearances ................................................... 15
Rigging and Lifting ............................................................................. 16
Outdoor Unit Mounting ................................................................. 16-17
Required Indoor Unit Clearances ...................................................... 18
Indoor Unit Mounting .................................................................... 19-22
General Refrigerant Piping System Information ......................... 23-32
Refrigerant Safety Standards ............................................................23
Device Connection Limitations ..........................................................23
Selecting Copper Piping .................................................................... 24
Copper Expansion and Contraction .............................................. 25-26
Piping Materials and Handling ........................................................... 27
Refrigerant System Engineering ................................................... 28-30
Flaring and Brazing Procedures ................................................... 31-32
Refrigerant Piping Connections .................................................... 33-43
Installation Overview ......................................................................... 33
Special Applications .......................................................................... 34
Outdoor Unit Connections ................................................................. 35
Indoor Unit Connections ............................................................... 36-38
Outdoor Unit Drain Piping .................................................................. 39
Indoor Unit Drain Hose ................................................................. 39-41
Bundling ............................................................................................. 41
Insulation ...................................................................................... 42-43
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TABLE OF CONTENTS
Electrical System Installation ........................................................ 44-53
Safety Guidelines .............................................................................. 44
Controller Options .............................................................................. 49
Indoor Unit Electrical Connections ............................................... 50-51
Outdoor Unit Electrical Connections ............................................. 52-53
Final Installation Procedures ........................................................ 54-63
Triple Leak / Pressure Test .......................................................... 54-55
Deep Evacuation Test .................................................................. 55-56
Triple Evacuation Test .................................................................. 56-57
Refrigerant Trim Charge ................................................................... 58
Finishing the Job .............................................................................. 58
Reattaching the Indoor Unit Bottom Cover ....................................... 59
Air Filter Disassembly and Assembly ............................................... 60
Installing Batteries, Test Run, Performance Evaluation ..................... 61
Installer Mode, Heating Only Mode ................................................... 62
Cooling Only Mode, Pump Down Procedure ..................................... 63
Troubleshooting .................................................................................. 64
LG SIMS - Self Diagnosis Functions ........................................... 64-65
Error Codes ................................................................................. 66-67
Refrigerant Leaks .............................................................................. 68
Installation Checklist ........................................................................... 69
................................................... 44-48
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