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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 ..................................................................................... 8-13
Unit Nomenclature ............................................................................... 8
Parts .................................................................................................... 9
Specications ............................................................................... 10-12
Electrical ............................................................................................ 13
General Installation Guidelines ..................................................... 14-25
Outdoor Unit Location Selection ................................................... 14-16
Required Outdoor Unit Clearances ................................................... 17
Rigging and Lifting / Outdoor Unit Mounting ................................. 18-19
Indoor Unit Location Selection / Required Clearances ...................... 20
Indoor Unit Mounting .................................................................... 21-25
General Refrigerant Piping System Information ......................... 26-35
Refrigerant Safety Standards ............................................................ 26
Device Connection Limitations .......................................................... 26
Selecting Field Supplied Piping ......................................................... 27
Copper Expansion and Contraction .............................................. 28-29
Piping Materials and Handling ........................................................... 30
Refrigerant System Engineering ................................................... 31-33
Flaring and Brazing Procedures ................................................... 34-35
Refrigerant Piping Connections .................................................... 36-46
Installation Overview ......................................................................... 36
Special Applications ........................................................................... 37
Outdoor Unit Connections ................................................................. 38
Indoor Unit Connections ............................................................... 39-41
Outdoor Unit Drain Piping / Indoor Unit Drain Hose ..................... 42-44
Bundling ............................................................................................. 44
Insulation ...................................................................................... 45-46
Electrical System Installation ........................................................ 47-57
Safety Guidelines .............................................................................. 47
Connections and Specications ................................................... 48-52
Controller Options .............................................................................. 53
Indoor Unit Electrical Connections ............................................... 54-55
Outdoor Unit Electrical Connections ............................................. 56-57
Final Installation Procedures ........................................................ 58-68
Triple Leak / Pressure Test ........................................................... 58-59
Deep Evacuation Test ................................................................... 59-60
Triple Evacuation Test................................................................... 60-61
Refrigerant Trim Charge, Finishing the Job .................................. 62-63
Reattaching the Indoor Unit Bottom Cover ........................................ 64
Air Filter Disassembly and Assembly ................................................ 65
Installing Batteries, Test Run, Performance Evaluation ..................... 66
Installer Mode, Cooling Only Mode ................................................... 67
Pump Down Procedure ..................................................................... 68
Troubleshooting ............................................................................. 69-73
LG SIMS - Self Diagnosis Functions ........................................... 69-70
Error Codes ................................................................................. 71-72
Refrigerant Leaks .............................................................................. 73
Installation Checklist ........................................................................... 74
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