General Information
16
Air-to-Water Heat Pump
Category
Symbol
Meaning
PCB
Connector
Remarks
Field
Installation
2WAY V/V
To control water flow for Fan
Coil Unit
CN_2WAY(A)
- 3rd party accessory and field
installation (sold separately)
- 2wire NO or NC type 2way valve
is supported.
Th12
W/TANK water temperature
sensor
CN_TH4
- Th12 and Th13 are connected at
4pin type connector CN_TH4
- Th12 is a part of sanitary water
tank kit. (model: PHLTA)
- Th13 is a part of solar thermal kit.
(model: PHLTA)
Th13
Solar-heated water
temperature sensor
CN_TH4
W/TANK
Sanitary water tank
(no connector)
- 3rd party accessory and field
installation (sold separately)
- Generating and storing sanitary
hot water by AWHP or built-in
electric heater
B/HT
Electric heater
CN_B/HEAT(A)
- 3rd party accessory and field
installation
(usually built-in at W / TANK)
- Supplying additional water
heating capacity
3 WAY
V/V_1
- Flow control for water which
is leaving from unit
- Flow direction switching
between under-floor and
water tank
CN_3WAY(A)
- 3rd party accessory and field
installation (sold separately)
- SPDT type 3way valve is
supported
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)
- 3rd party accessory and Field
installation (sold separately)
- SPDT type 3way valve is
supported.
W_PUMP_2 External Water Pump
CN_W/PUMP
(B)
- 3rd 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
THE
RMAL
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)
- 3rd party accessory and Field
installation (sold separately)
City Water
Water to be heated by unit
and B/HT of W/TANK
(no connector) - Field installation
Shower
Water supplied to end-user
(no connector) - Field installation
