
TABLE OF CONTENTS
SAFETY INSTRUCTIONS................................................3
Safety Precaution.....................................................................................................4
INSTALLATION ..............................................................19
Heat Pump Structure
..............................................................................................19
Installation Tools.....................................................................................................20
Accessories............................................................................................................20
Installation Instructions...........................................................................................21
Selection of installation site....................................................................................21
Installation drawings for the heat pump installed on a wall....................................23
Thermal Expansion ................................................................................................25
Installing Condensate Drain Lines .........................................................................25
Connecting the Water Supply.................................................................................26
Making Electrical Connections ...............................................................................27
Safety Controls.......................................................................................................28
Insulation Blanket Kits............................................................................................28
Installation Checklist ..............................................................................................30
OPERATION ...................................................................31
Using Basic Control................................................................................................31
SMART FUNCTIONS .....................................................33
LG ThinQ Application .............................................................................................33
MAINTENANCE .............................................................35
Draining and Flushing the Water Heater ................................................................35
Air Filter Maintenance ............................................................................................36
Condensate Drain Maintenance.............................................................................37
Shut-down for an Extended Period ........................................................................37
TROUBLESHOOTING ...................................................38
Before Calling for Service ......................................................................................38
Error Code..............................................................................................................40
Technical specification ...........................................................................................41
This manual may contain images or content
different from the model you purchased.
This manual is subject to revision by the
manufacturer.
Air connection.........................................................................................................24
Digital Input for energy saving (Smart Grid)
.............................................................29
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