Final Check - LG THERMA V Air-to-Water Heat Pump Installation Manual

Step 6. Find terminal block and connect wire as below.
THERMOSTAT
(Default : 230V AC)
17 18 19
L N L1
BR BL WH
(L) (N) (C)
Thermostat
Heating / Cooling 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

Final Check

• DIP switch setting :
Set DIP switch No. 8 to 'ON'. Otherwise, the product can
not recognize the thermostat.
• Control Panel :
- 'Thermostat' icon is displayed on the control panel.
- Button input is prohibited.
Thermostat Operation with Control Panel
Following features are permitted when thermostat is installed :
• SET TEMP button
• VIEW TEMP button
• Temperature adjust button (*)
• Sanitary water heating Enable / Disable
• Silent operation On / Off
(*) : Adjusted temperature is only used to control electric heater on / off condition.
The product does not turn on / off according to the setting temperature at the control panel. It
turns on / off according to the thermostat signal.
Following features are NOT permitted when thermostat is installed :
• Operating mode (cooling/ heating/ weather-dependent) selection
• Time scheduling
• Operation On / Off
Mechanical type Thermostat
20
Do not connect wire (N) as mechanical type thermostat does not
L2
require electric power supply.
BK
(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, PCB of the indoor unit can be seriously damaged.
Accessories Installation
Thermostat Icon
Installation Manual 61