Table of Contents
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Safety Instructions ............................................................................. 3-6
General Data ..................................................................................... 8-13
Unit Nomenclature............................................................................... 8
LGRED Convertible Mid-Static Ducted Pairing Table .......................... 9
Parts .................................................................................................. 10
Optional Accessory.............................................................................11
Electrical ............................................................................................ 13
General Installation Guidelines..................................................... 14-27
Outdoor Unit Location Selection................................................... 14-16
Required Outdoor Unit Clearances ................................................... 17
Rigging and Lifting / Outdoor Unit Mounting...................................... 18
Outdoor Unit Mounting ...................................................................... 19
Indoor Unit Bolt Locations ................................................................. 21
Hanging the Indoor Unit..................................................................... 23
Vertical Installation............................................................................. 24
Installing for Cond. Drainage / Drilling the Piping Hole ...................... 25
Vertical Conversion Kit Installation .................................................... 26
Changing the Inlet Position................................................................ 27
General Refrigerant Piping System Information ......................... 28-37
Refrigerant Safety Standards ............................................................ 28
Device Connection Limitations .......................................................... 28
Selecting Field Supplied Piping ......................................................... 29
Copper Expansion and Contraction.............................................. 30-31
Piping Handling ................................................................................. 32
Refrigerant System Engineering................................................... 33-35
Flaring and Brazing Procedures ................................................... 36-37
Refrigerant Piping Connections.................................................... 38-46
Installation Overview / Special Applications ...................................... 38
Outdoor Unit Connections ................................................................. 39
Indoor Unit Connections .................................................................... 40
ODU Condensate Piping / IDU Condensate Piping ........................... 41
Vertical Condensate Piping / Common Drain System ....................... 42
Gravity Condensate Pipe / Checking for Leaks ................................. 43
Bundling............................................................................................. 44
Insulation ...................................................................................... 45-46
...................... 12
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TABLE OF CONTENTS
Electrical System Installation........................................................ 47-57
Safety Guidelines .............................................................................. 47
Wired Controller Connections............................................................ 51
Indoor Unit Electrical Connections .................................................... 54
Vertical Installation Conversion Kit Wiring ........................................ 55
Using a Conduit ................................................................................. 55
Connecting ODU Wiring ............................................................... 56-57
Final Installation Procedures ........................................................ 58-74
Triple Leak / Pressure Test ........................................................... 58-59
Deep Evacuation Test................................................................... 59-60
Triple Evacuation Test................................................................... 60-61
Refrigerant Trim Charge, Finishing the Job....................................... 62
Installer Setting Mode........................................................................ 63
Setting the External Static Pressure............................................. 64-65
FC-15 / FC-35.................................................................................... 66
Test Run ............................................................................................ 67
Performance Evaluation .................................................................... 68
LHN188-248HV1 Indoor Unit DIP Switch Settings ............................ 69
Setting LUU180-240HHV Optional Modes ................................... 70-74
Troubleshooting ............................................................................. 75-80
LG Monitoring View (LGMV) Diagnostic Software ........................ 75-76
LG ThinQ ........................................................................................... 77
Error Codes ................................................................................. 78-79
Refrigerant Leaks .............................................................................. 80
Installation Checklist........................................................................... 81
................................................... 47-50
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