How To Wire Thermostat - LG THERMA V AHBW036H0 Installation Manual

How to wire thermostat

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. If it is Heating only thermostat, go to step 4. go to step 5.
Step 4. Find terminal block and connect wire as below. After connecting, go to step 5.
THERMOSTAT
(Default : 230 V AC)
11 12 13
L N L1
BR BL BR
(L) (N)
Thermostat
(L) : Live signal from PCB to thermostat
(N) : Neutral signal from PCB to thermostat
(H) : Heating signal from thermostat to PCB
Step 5. Find terminal block and connect wire as below.
THERMOSTAT
(Default : 230 V AC)
11 12
L N
BR BL
(L) (N)
Thermostat
(L) : Live signal from PCB to thermostat
(N) : Neutral signal from PCB to thermostat
(H) : Heating signal from thermostat to PCB
WARNING
Mechanical type thermostat
Do not connect wire (N) as mechanical type thermostat does not
14
L2 require electric power supply.
BK
CAUTION
(H)
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 can be seriously damaged.
WARNING
Mechanical type thermostat
Do not connect wire (N) as mechanical type thermostat does
14
not require electric power supply.
L2
BK
CAUTION
(H)
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 can be seriously damaged.
Accessories Installation
Installation Manual 33