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Terminal Block Information - LG THERMA V Air-to-Water Heat Pump Installation Manual

Therma v air-to-water heat pump.
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Piping and Wiring for Indoor Unit
Terminal Block Information (1Ø Electric Heater)
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
3WAY VALVE
(B)
1
2
3
L
L1
N
BR
WH
BL
water flow switching between using
solar thermal heating and skipping
solar thermal heating
Terminal Block 2
OUTDOOR UNIT
11
12
13
1(L)
(2(N)
3
(BR)
BL
BK
Power supply for Indoor
unit and communication
Terminal Block 3
EXTERNAL POWER
(INTERNAL E/HEATER)
1
2
L
N
BR
BL
connecting external electric
power supply for internal
electric heater
56 Air-to-Water Heat Pump
water flow switching between
energizing water
pump for solar
under floor heating and sanitary
thermal system
WATER
WATER
PUMP
TANK
(B)
HEATER
4
5
6
7
L
N
L
N
BR
BL
BR
BL
turn on or off sanitary
water tank heater
opening or closing
water flow for FCU
cooling
2WAY VALVE
(Default : 230V AC)
(A)
14
15
16
17
L1
L2
N
L
BR
WH
BL
BR
Connection for thermostat
(230V AC or 24V AC)
Supporting type : Heating only or
Heating/Cooling
connecting external electric
power supply for sanitary
water tank electric heater
EXTERNAL POWER
(W/TNK E/HEATER)
3
4
L
N
BR
BL
water tank heating
3WAY VALVE
(A)
8
9
10
L
L1
N
BR
WH
BL
THERMOSTAT
18
19
20
N
L1
L2
BL
WH
BK
Terminal
Block 1
Terminal
Block 2
Terminal
Block 3

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