Terminal Block Information - LG THERMA V Installation Manual

1,MFL68681810,영영 2017. 7. 1. 영영 12:55 Page 51

Terminal Block Information

Symbols used below pictures are as follows :
- L, L1, L2 : Live (230V AC)
- N : Neutral (230V AC)
- BR : Brown , WH : White , BL : Blue , BK : Black
Terminal Block 1
1 2 3
L L1 N
3WAY VALVE
(B)
water flow switching between using
solar thermal heating and skipping
solar thermal heating
Terminal Block 2
11 12 13
1(L) 2(N) 3
OUTDOOR UNIT
Power supply for Indoor
unit and communication
Terminal Block 3 (1Ø Electric Heater)
1(L) 2(N)
POWER SUPPLY
(1 Ø, 220-240 V, 50 Hz)
connecting external electric
power supply for internal
electric heater
water flow switching between
energizing water
under floor heating and
pump for solar
thermal system DHW tank heating
4 5 6 7 8
L N L N L
WATER WATER
3WAY VALVE
PUMP TANK
(B) HEATER
turn on or off DHW
tank heater
opening or closing
water flow for FCU
cooling
14 15 16 17 18
L1 L2 N L N
THERMOSTAT
2WAY VALVE
(Default : 230V AC)
(A)
Connection for thermostat
(230V AC)
Supporting type : Heating only or
Heating/Cooling
connecting external electric
power supply for DHW tank
electric heater
3(L) 4(N)
TO ELB FOR
DHW TANK E/HEATER
Piping and Wiring for Indoor Unit
9 10
L1 N
(A)
19 20
Terminal
L1 L2
Block 1
Terminal Block 3 (3Ø Electric Heater)
connecting external electric
power supply for DHW tank
1 2 3
L N R
TO ELB FOR
DHW TANK
(3 Ø, 380-415 V, 50 Hz)
E/HEATER
connecting external electric
power supply for DHW tank
electric heater
Terminal Terminal
Block 2 Block 3
electric heater
4 5
S T
POWER SUPPLY
Installation Manual 51