LG THERMA V Installation Manual page 51

Description (For R410A)
Category Symbol
S7 Refrigerant temperature sensor (Gas side)
S8 Refrigerant temperature sensor (Liquid side)
S9 Entering Water temperature sensor
S10 Leaving Water temperature sensor
S11 Electric heater outlet temperature sensor
F/S Flow Switch
E/HT Electric Heater
Indoor
Unit
W_PUMP1 Internal Water Pump
EXP/TANK Expansion Tank
S12 Remote Air temperature sensor
CTR/PNL Control Panel (or 'Remote Controller')
2WAY V/V_1 To control water flow for Fan Coil Unit
M / F Magnetic Filter
W/TANK DHW Tank
B/HT Electric Heater
Water
- Flow control for water which is leaving from
Heating
indoor unit.
3WAY V/V_1
- Flow direction switching between underfloor and
water tank
Water to be heated by Indoor unit and B/HT of
CITY WATER
W/TANK
SHOWER Water supplied to end-user
S13 W/TANK water temperature sensor
S14 Solar-heated water temperature sensor
- Flow control for water which is heated and
circulated by SOLAR THERMAL SYSTEM.
3WAY V/V_2
- Flow direction switching between SOLAR
THERMAL SYSTEM and W/TANK
Solar
Heating
W_PUMP/2 External Water Pump
- This system can include following components
: Solar panel, Sensors, Thermostats, Interim heat
SOLAR
exchanger, Water pump, etc.
THERMAL
- To utilized hot water heated by SOLAR THERMAL
SYSTEM
SYSTEM, end-user must install Solar-Kit
accessory (PHLLA) provided by LG
Meaning PCB Connector
CN_PIPE_OUT
CN_PIPE_IN
CN_FLOW1
CN_E/HEAT(A)
CN_E/HEAT(B)
CN_MOTOR1
(no connector)
CN_ROOM
CN_REMO
CN_2WAY(A)
(No connector)
(No connector)
CN_B/HEAT(A)
CN_3WAY(A)
(no connector)
(no connector)
CN_3WAY(B)
CN_W/PUMP(B)
(no connector)
GENERAL INFORMATION
- Meaning is expressed based on Cooling mode.
- S9, S10 and S11 are connected at 6 pin type
CN_TH3
connector CN_TH3.
- 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.
- Water Pump is connected at CN_MOTOR1
- Absorb volume change of heated water,
- Optional accessory (sold separately)
- Model : PQRSTA0
- Pre built-in at indoor unit
rd
- 3 party accessory and Field installation (sold
separately)
- 2 wire NO or NC type 2way valve is supported.
rd
- 3 party accessory and Field installation (sold
separately)
- It is strongly recommended to install an additional
filter on the heating water circuit.
rd
- 3 party accessory and Field installation
(sold separately)
- Generating and storing DHW by AWHP or built-in
electric heater
rd
- 3 party accessory and Field installation
(usually built-in at W/TANK)
- Supplying additional water heating capacity.
rd
- 3 party accessory and Field installation
(sold separately)
- SPDT type 3way valve is supported.
- Field installation
- Field installation
- S13 and S14 are connected at 4 pin type connector
CN_TH4.
CN_TH4
- S13 is a part of DHW tank kit.(Model:PHLTA)
- S14 is a part of solar thermal kit (Model:PHLLA)
rd
- 3 party accessory and Field installation
(sold separately)
- SPDT type 3way valve is supported.
rd
- 3 party accessory and Field installation
(sold separately)
- If water pump of SOLAR THERMAL SYSTEM is
incapable of circulation,external water pump can be
used.
rd
- 3 party accessory and Field installation
(sold separately)
51
Remarks