Installation guide

31
GENERAL INFORMATION
ENGLISH
Description
Category Symbol Meaning PCB Connector Remarks
Indoor
Unit
TH1 Refrigerant temperature sensor (Gas side) CN_PIPE_OUT
- Meaning is expressed based on Cooling mode.
TH2 Refrigerant temperature sensor (Liquid side) CN_PIPE_IN
TH3 Entering Water temperature sensor
CN_TH3
- TH3, TH4, and TH5 are connected at 6 pin type
connector CN_TH3.
TH4 Interim Water temperature sensor
TH5 Leaving Water temperature sensor
F/S Flow Switch CN_FLOW1
E/HT Electric Heater
CN_E/HEAT(A)
CN_E/HEAT(B)
- Heating capacity is divided into two level : partial
capacity by E/HEAT(A) and full capacity by
E/HEAT(A) + E/HEAT(B).
- Operating power(230 V AC 50 Hz) of E/HEAT(A)
and E/HEAT(B) are supplied by external power
source via relay connector and ELB.
W_PUMP1 Internal Water Pump CN_MOTOR1 - Water Pump is connected at CN_MOTOR1
EXP/TANK Expansion Tank (no connector) - Absorb volume change of heated water,
TH8 Remote Air temperature sensor CN_ROOM
- Optional accessory (sold separately)
- Model : PQRSTA0
CTR/PNL Control Panel (or ‘Remote Controller’) CN_REMO - Pre built-in at indoor unit
2WAY V/V_1 To control water flow for Fan Coil Unit CN_2WAY(A)
- 3
rd
party accessory and Field installation (sold
separately)
- 2 wire NO or NC type 2way valve is supported.
M / F Magnetic Filter (No connector)
- 3
rd
party accessory and Field installation (sold
separately)
- It is strongly recommended to install an additional
filter on the heating water circuit.
Water
Heating
W/TANK DHW Tank (No connector)
- 3
rd
party accessory and Field installation
(sold separately)
- Generating and storing DHW by AWHP or built-in
electric heater
B/HT Electric Heater CN_B/HEAT(A)
- 3
rd
party accessory and Field installation
(usually built-in at W/TANK)
- Supplying additional water heating capacity.
3WAY V/V_1
- Flow control for water which is leaving from
indoor unit.
- Flow direction switching between underfloor and
water tank
CN_3WAY(A)
- 3
rd
party accessory and Field installation
(sold separately)
- SPDT type 3way valve is supported.
CITY WATER
Water to be heated by Indoor unit and B/HT of
W/TANK
(no connector) - Field installation
SHOWER Water supplied to end-user (no connector) - Field installation
TH6 W/TANK water temperature sensor
CN_TH4
- TH6 and TH7 are connected at 4 pin type connector
CN_TH4.
- TH6 is a part of DHW tank kit.(Model:PHLTA)
- TH7 is a part of solar thermal kit (Model:PHLLA)
Solar
Heating
TH7 Solar-heated water temperature sensor
3WAY V/V_2
- Flow control for water which is heated and
circulated by SOLAR THERMAL SYSTEM.
- Flow direction switching between SOLAR
THERMAL SYSTEM and W/TANK
CN_3WAY(B)
- 3
rd
party accessory and Field installation
(sold separately)
- SPDT type 3way valve is supported.
W_PUMP/2 External Water Pump CN_W/PUMP(B)
- 3
rd
party accessory and Field installation
(sold separately)
- If water pump of SOLAR THERMAL SYSTEM is
incapable of circulation,external water pump can be
used.
SOLAR
THERMAL
SYSTEM
- This system can include following components
: Solar panel, Sensors, Thermostats, Interim heat
exchanger, Water pump, etc.
- To utilized hot water heated by SOLAR THERMAL
SYSTEM, end-user must by LG AWHP Solar-Kit.
(no connector)
- 3
rd
party accessory and Field installation
(sold separately)