3
Installation Manual
Due to our policy of continuous product innovation, some specifications may change without notification.
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MAX
MULTI
F
MULTI
F
TABLE OF CONTENTS
CONTENTS
Safety Instructions ...........................................................................................................................................4
Introduction ......................................................................................................................................................9
Unit Nomenclature ......................................................................................................................................... 11
General Data ................................................................................................................................................. 12
Specifications
............................................................................................................................................................. 13
Typical Multi F / Multi F Max Systems ........................................................................................................................ 15
Refrigerant Piping Requirements ............................................................................................................................... 17
General Installation Guidelines ......................................................................................................................18
Location Selection ...................................................................................................................................................... 18
Inspection ................................................................................................................................................................... 19
Install Ceiling Cassette ............................................................................................................................................... 20
Installing Drain System ............................................................................................................................................... 22
Refrigerant Piping ....................................................................................................................................................... 23
Piping Materials and Handling .................................................................................................................................... 31
Piping Connections ........................................................................................................................................32
Piping Preparation ...................................................................................................................................................... 32
IDU to ODU ................................................................................................................................................................ 33
Piping Insulation ......................................................................................................................................................... 36
Electrical Wiring .............................................................................................................................................38
General Guidelines ..................................................................................................................................................... 38
Power Wiring Specifications and Best Practices
........................................................................................................ 39
Controller Options ....................................................................................................................................................... 40
Power Wiring / Communications Cable Installation Guidelines
40
Indoor Unit Electrical Connections Procedure ............................................................................................................ 41
Decorative Grille Kit Installation .................................................................................................................................. 43
Self Diagnosis Functions ........................................................................................................................................... 44
LG SIMS - Self Diagnosis Functions ......................................................................................................................... 46
Controller Options ....................................................................................................................................................... 48
Troubleshooting .............................................................................................................................................51
Error Codes ............................................................................................................................................................... 51
Cautions for Refrigerant leaks .......................................................................................................................53
Refrigerant Leaks ....................................................................................................................................................... 53
Installation Checklist ......................................................................................................................................54
Pre-Commissioning Checklist ........................................................................................................................58
Commissioning Notes ....................................................................................................................................62
Commissioning Checklist Exception Report ..................................................................................................63
Multi F Refrigerant Charge Worksheet ..........................................................................................................64
Multi F MAX Refrigerant Charge Worksheet .................................................................................................65
