Wall Mount Installation Manual
7
Due to our policy of continuous product innovation, some specifications may change without notification.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
TABLE OF CONTENTS
Safety Instructions .............................................................................3-6
General Data ..................................................................................... 8-11
Unit Nomenclature ...............................................................................8
Parts .................................................................................................... 9
6SHFL¿FDWLRQV .................................................................................... 10
Electrical ............................................................................................ 11
General Installation Guidelines .....................................................12-21
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 ....................................................................19-21
General Refrigerant Piping System ..............................................22-31
Refrigerant Safety Stds / Device Connection Limitations .................. 22
Selecting Field Supplied Piping ......................................................... 23
Copper Expansion and Contraction ..............................................24-25
Piping Handling ................................................................................. 26
Refrigerant System Engineering ...................................................27-29
Flaring and Brazing Procedures ...................................................30-31
Refrigerant Piping Connections ....................................................32-47
Installation Overview ......................................................................... 32
Special Applications ........................................................................... 33
Outdoor Unit Connections ................................................................. 34
Indoor Unit Connections ...............................................................35-39
Outdoor Unit Condensate Drain Hose ............................................... 40
Indoor Unit Condensate Drain Hose .............................................41-44
Bundling ............................................................................................. 45
Insulation ......................................................................................46-47
Electrical System Installation ........................................................48-58
Safety Guidelines .............................................................................. 48
&RQQHFWLRQVDQG6SHFL¿FDWLRQV ...................................................48-52
Controller Options .............................................................................. 52
Indoor Unit Electrical Connections ...............................................53-56
Outdoor Unit Electrical Connections .............................................57-58
Final Installation Procedures ........................................................59-69
Triple Leak / Pressure Test ...........................................................59-60
Deep Evacuation Procedure .........................................................60-61
Triple Evacuation Procedure ........................................................61-62
Refrigerant Trim Charge .................................................................... 63
Finishing the Job ..........................................................................63-64
Finalizing Wall-Mounted Installation .................................................. 64
Reattaching the Bottom Cover ......................................................... 65
Installing Batteries, Test Run, Performance Evaluation ..................... 66
Installer Modes .............................................................................67-68
Pump Down Procedure ..................................................................... 69
Troubleshooting .............................................................................70-76
LG Monitoring View (LGMV) Diagnostic Software ........................70-71
LG SIMS - Self Diagnosis Functions ...........................................72-73
Error Codes .................................................................................74-75
Refrigerant Leaks .............................................................................. 76
Installation Checklist ........................................................................... 77