LG THERMA V Installation Manual page 101

How to wire Heating / Cooling / DHW Heating thermostat (For Hydrosplit)
Follow below procedures Step 1 ~ Step 5.
Step 1. Uncover front cover of the unit and open the control box.
Step 2. Identify the power specification of the thermostat. If it is 220-240 V~, go to Step 3.
Step 3. Find terminal block and connect wire as below.
WARNING
!
Mechanical type thermostat.
Do not connect wire (N) as mechanical type thermostat does not require electric power
supply.
CAUTION
!
Do not connect external electric loads.
Wire (L) and (N) should be used only for operation electric type thermostat.
Never connect external electric loads such as valves, fan coil units, etc. If connected, Main
PCB (Heater) can be seriously damaged.
(L) : Live signal from PCB to thermostat
(N) : Neutral signal from PCB to thermostat
(C) : Cooling signal from thermostat to PCB
(H) : Heating signal from thermostat to PCB
(D) : DHW Heating signal from thermostat to PCB
Final check
• DIP switch setting :
Set DIP switch No. 8 to 'ON'. Otherwise, the unit can not recognize the thermostat.
• Remote Controller :
- 'Thermostat' text is displayed on the remote controller.
- Button input is prohibited.
- In case of Heating / Cooling / DHW Heating thermostat, select 'Heat&Cool / DHW' as the
Thermostat Control Type in the remote controller installer settings.
17 18 19 20
L N L1 L2
THERMOSTAT
(Default : 230 V AC)
(L) (N) (C)
Thermostat
ACCESSORIES INSTALLATION
28
L3
THERMOSTAT
(H) (D)
101