LG THERMA V Series Installation Manual

47
PIPING AND WIRING FOR OUTDOOR UNIT
ENGLISH
Terminal Block Information
Symbols used below pictures are as follows :
- L, L1, L2 : Live (230 V AC)
- N : Neutral (230 V AC)
- BR : Brown , WH : White , BL : Blue , BK : Black
Terminal Block 1
Terminal Block 2
Terminal Block 3
Terminal Block 4
1(L) 2(N)
Power supply for
Indoor unit
Earth
POWER
Connection for thermostat
(230 V AC)
Connection for
Main Pump
3WAY VALVE
(A)
THERMOSTAT
(Default : 230 V AC)
PUMP
(A)
LN LL1N NL1LL2
123456 89710
Water flow switching between
under floor heating and
DHW tank heating.
3(A) 4(B)
Connection for 3rd
Party controller
3rd PARTY
CONTROLLER
3(A) 4(B)
Connection for Indoor
unit communication
COMM.
Terminal
Block 1
Terminal
Block 2
Terminal
Block 3
Terminal
Block 4
You should separate the communication wiring, in
case of communication wiring length is over 40 M.
LN
Separation
Power Supply Communication Wiring
Shield
cable
CAUTION
!

LG THERMA V Series Specifications

General

Brand	LG
Model	THERMA V Series
Category	Heat Pump
Language	English