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LG THERMA V Air-to-Water Heat Pump Installation Manual Page 3

Therma v air-to-water heat pump.
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3. INSTALLATION OF OUTDOOR UNIT ...........................................................................30
CONDITIONS WHERE OUTDOOR UNIT IS INSTALLED..........................................................30
DRILL A HOLE IN THE WALL.....................................................................................................30
INSTALLATION AT SEASIDE .....................................................................................................31
SEASONAL WIND AND CAUTIONS IN WINTER ......................................................................31
4. INSTALLATION OF INDOOR UNIT ...............................................................................32
CONDITIONS WHERE INDOOR UNIT IS INSTALLED..............................................................32
GENERAL CONSIDERATIONS ............................................................................................32
SERVICE SPACE..................................................................................................................32
MOUNTING TO WALL ..........................................................................................................33
WATER VOLUME AND WATER PUMP CAPACITY .............................................................34
WATER VOLUME AND EXPANSION VESSEL PRESSURE................................................35
WATER QUALITY .................................................................................................................36
CONDITIONS IF ACCESSORIES ARE INSTALLED..................................................................37
THERMOSTAT ......................................................................................................................37
REMOTE AIR TEMPERATURE SENSOR ........................................................................... 37
3WAY VALVE(2WAY VALVE) ................................................................................................40
5. PIPING AND WIRING FOR OUTDOOR UNIT ...............................................................41
REFRIGERANT PIPING .............................................................................................................41
CONSTRAINTS IN PIPE LENGTH AND ELEVATION ..........................................................41
PREPARATION FOR PIPING ...............................................................................................42
CONNECTING PIPE TO INDOOR UNIT ..............................................................................43
CONNECTING PIPE TO OUTDOOR UNIT ..........................................................................43
ELECTRICAL WIRING................................................................................................................46
WIRE SPECIFICATION.........................................................................................................46
CIRCUIT BREAKER SPECIFICATION .................................................................................47
FINALIZING ................................................................................................................................49
PIPE FORMING ....................................................................................................................49
LEAKAGE TEST AND EVACUATION.........................................................................................50
PREPARATION .....................................................................................................................50
LEAKAGE TEST ...................................................................................................................50
EVACUATION........................................................................................................................51
6. PIPING AND WIRING FOR INDOOR UNIT ...................................................................52
WATER PIPING AND WATER CIRCUIT CONNECTION............................................................52
GENERAL CONSIDERATIONS ............................................................................................52
WATER PIPING AND WATER CIRCUIT CONNECTION......................................................52
WATER CHARGING .............................................................................................................54
PIPE INSULATION ................................................................................................................54
Installation Manual 3

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