LG MULTI V HYDRO KIT ARNH963K2A4 Installation Manual page 70

WIRING
Connecting Third-Party Accessories
Wiring the Third-Party Thermostat, continued.
3. Identify the power specification of the thermostat to install.
• If installing a 208-230 V thermostat, go to steps 6 and 7.
• If installing a 1~24 V thermostat, go to steps 4, 5, and 7.
4. Locate connecting cable A and C and disconnect.
5. Connect cable B and C.
6. Locate the terminal block in the Hydro Kit and connect the control
wiring from the thermostat, terminals 17-20.
• If installing a mechanical thermostat,
Mechanical thermostats do not require power supply.
• If installing a heating only electrical thermostat, connect wires L, N,
and H.
• If installing a heating / cooling electrical thermostat, connect wires
L, N, C, H.
7. If the DIP Switch hasn't been set yet, set the Hydro Kit PCB DIP
Switch No. 8 to ON.
Figure 73: Wiring for the Heating Only Thermostat.
THERMOSTAT
(Default: 208/230 V AC)
17 18 19
L N L1
BR BL WH BK
(L) (N)
Thermostat
(L): Live signal from PCB to Thermostat
(N): Neutral signal from PCB to Thermostat
(H): Heating signal from Thermostat to PCB
Figure 74: Wiring for the Heating / Cooling Thermostat.
THERMOSTAT
(Default: 208/230 V AC)
17 18 19 20
L N L1 L2
BR BL WH BK
(L) (N) (C) (H)
Thermostat
(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
70
do not connect wire N.
20
L2
(H)
Due to our policy of continuous product innovation, some specifications may change without notification.
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Figure 71: Hydro Kit Control Box Connections for Third-Party 1-24 V
Thermostats.
Figure 72: Hydro Kit Terminal Connections for Third-Party 208-230 V
Thermostats.
Wire to Terminals 17 to 20
• Wires (L) and (N) must be used only for electrical thermostats.
•
units, etc. If connected, it will seriously damage the main PCB as-
sembly.
B
A
Second:
Connect
First:
B and C
Disconnect
A and C
C
L N C H
Thermostat