Terminal Block Information - LG AHBW Series Installation Manual

Terminal block information

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 BR
water flow switching between using
solar thermal heating and skipping
solar thermal heating
Terminal block 2
opening or closing
water flow for FCU
OUTDOOR UNIT
11 12 13 14
1(L) (2(N) 3 L1
(BR) BL BK BR
Power supply for Indoor
unit and communication
Terminal block 3
connecting external electric
power supply for sanitary
water tank electric heater
EXTERNAL POWER
(INTERNAL E/HEATER)
1 2
L N
BR BL
connecting external electric
power supply for internal
electric heater
*. Itʼs not include AHBW036H0 model.
The Power cord connected to the unit should be selected according to the following
specifications.
water flow switching between
under floor heating and sanitary
water tank heating
WATER WATER
3WAY VALVE
PUMP TANK
(B) HEATER
4 5 6 7 8
L N L N L
BL BR BL BR
turn on or off sanitary
water tank heater
cooling
THERMOSTAT
2WAY VALVE
(Default : 230V AC)
(A)
15 16 17 18
L2 N L N
WH BL BR BL
Connection for thermostat
(230V AC or 24V AC)
Supporting type : Heating only or
Heating/Cooling
EXTERNAL POWER
(W/TNK E/HEATER)
3 4
L N
BR BL
Wiring and Water Piping for Unit
(A)
9 10
L1 N
WH BL
19 20
L1 L2
WH BK
Model : AHBW**6A0
AHBW**8A0
Installation Manual 39