LGRED Heat LMU180HHV Installation Manual

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TABLE OF CONTENTS
Safety Instructions ...................................................................................................................................................................................................... 4-7
Nomenclature .................................................................................................................................................................................................................. 8
General Data .............................................................................................................................................................................................................. 9-16
Installation ................................................................................................................................................................................................................ 17-30
Transporting / Lifting ................................................................................................................................................................................................... 17
Placement Considerations ..................................................................................................................................................................................... 18-27
Mounting / Anchoring ............................................................................................................................................................................................. 28-30
General Refrigerant Piping System Information .................................................................................................................................................. 31-45
LG Air Conditioner Technical Solution (LATS) ....................................................................................................................................................... 31-32
Refrigerant Safety Standards / Device
Connection Limitations .......................................................................................................................................................................................... 33-34
Selecting Copper Piping ............................................................................................................................................................................................. 35
Copper Expansion and Contraction ....................................................................................................................................................................... 36-38
Piping Handling .......................................................................................................................................................................................................... 39
Refrigerant System Engineering ............................................................................................................................................................................ 40-43
Flaring and Brazing Procedures ............................................................................................................................................................................ 44-45
Refrigerant Piping System Installation .................................................................................................................................................................. 46-54
Refrigerant Piping Insulation ................................................................................................................................................................................. 55-57
Electrical System Installation ................................................................................................................................................................................. 58-72
General Information .................................................................................................................................................................................................... 58
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Installation ............................................................................................................................................................................................................. 63-72
Final Installation Procedures ................................................................................................................................................................................. 73-88
Triple Leak / Pressure Test .................................................................................................................................................................................... 73-74
Deep Evacuation Test ............................................................................................................................................................................................ 74-75
Triple Evacuation Test............................................................................................................................................................................................ 75-76
Refrigerant Charge ................................................................................................................................................................................................ 77-79
Cautions for Refrigerant Leaks .............................................................................................................................................................................. 80-81
Test Run ..................................................................................................................................................................................................................... 82
DIP Switch Settings for Optional Modes ................................................................................................................................................................ 83-88
Error Codes .............................................................................................................................................................................................................. 89-90
LG Monitoring View (LGMV) Diagnostic Software ............................................................................................................................................... 91-92
LG Smart Inverter Monitoring System (SIMS) ....................................................................................................................................................... 93-94
Maintenance Recommendations ................................................................................................................................................................................. 95
Installation Checklists and Worksheets .............................................................................................................................................................. 96-101