Terminal Block; Specifications - LG AHBW Series Installation Manual

Wiring and Water Piping for Unit
Symbols used below pictures are as follows :
- L, L1, L2 : Live (1~ 230 V)
- N : Neutral (1~ 230 V)
- BR : Brown , WH : White , BL : Blue , BK : Black, GR/YL : Green/Yellow

Terminal block 1

energizing water
pump for solar
thermal system
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
(W/TANK E/HEATER)
1 2
connecting external electric
power supply for sanitary
water tank electric heater
The Power cord connected to the unit should be selected according to the following

specifications.

40 Air-to-Water Heat Pump
water flow switching between
under floor heating and sanitary
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
(Default : 230V AC)
14 15 16 17
L
BR
Connection for thermostat
(230V AC or 24V AC)
Supporting type : Heating only or
Heating/Cooling
EXTERNAL POWER
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
Model : AHBW036H0