LG LMCN078HV User Manual

7
Installation Manual
Due to our policy of continuous product innovation, some specifications may change without notification.
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TABLE OF CONTENTS
Safety Instructions ...................................................................................................................................................................................................... 3-6
Unit Nomenclature .......................................................................................................................................................................................................... 8
Introduction ................................................................................................................................................................................................................9-10
General Data ............................................................................................................................................................................................................ 11-15
R410A Refrigerant .......................................................................................................................................................................................................11
6SHFL¿FDWLRQV ............................................................................................................................................................................................................. 12
Dimensions ............................................................................................................................................................................................................13-14
Refrigerant Piping Diagram ........................................................................................................................................................................................ 15
Installation ................................................................................................................................................................................................................16-29
Unpack and Inspect .................................................................................................................................................................................................... 16
Indoor Unit Location Selection ............................................................................................................................................................................... 17-18
Preparing the Installation Area ................................................................................................................................................................................... 19
Hanging the Indoor Unit .............................................................................................................................................................................................. 20
Indoor Unit Connections ........................................................................................................................................................................................21-22
Flaring Procedure ..................................................................................................................................................................................................23-24
Outdoor Unit to Indoor Unit Connections ............................................................................................................................................................... 25-29
General Installation Guidelines ..............................................................................................................................................................................30-32
Install the Condensate Drain Pipe .............................................................................................................................................................................. 30
Refrigerant Piping ....................................................................................................................................................................................................... 31
Insulating Refrigerant Piping ...................................................................................................................................................................................... 32
Wiring .......................................................................................................................................................................................................................33-44
General Guidelines ..................................................................................................................................................................................................... 33
Power Wiring / Communication Cable Connections ................................................................................................................................................... 34
3RZHU6XSSO\3RZHU:LULQJ6SHFL¿FDWLRQV .............................................................................................................................................................. 35
&RPPXQLFDWLRQ&RQQHFWLRQ&DEOH6SHFL¿FDWLRQV ............................................................................................................................................... 36-37
&RQWUROOHU2SWLRQVDQG&RQQHFWLRQ6SHFL¿FDWLRQV ................................................................................................................................................ 38-40
Indoor Unit Electrical Connections ........................................................................................................................................................................ 41-43
Optional Wall-Mounted Controller and Sensor ........................................................................................................................................................... 44
Final Installation Procedures ................................................................................................................................................................................. 45-46
Decorative Grille Kit Installation ................................................................................................................................................................................. 45
Installing Batteries ...................................................................................................................................................................................................... 46
Troubleshooting ......................................................................................................................................................................................................47-48
Error Codes ..........................................................................................................................................................................................................47-48
Installation Checklist ...............................................................................................................................................................................................49-50

LG LMCN078HV Specifications

General

Brand	LG
Model	LMCN078HV
Category	Air Conditioner
Language	English