52 Outside Unit
Electrical Wiring
Cool/Heat Selector Installation and Connection(Heat pump only)
n Using Cool/Heat Selector Installation and Connection
• Connect wires as below figure at the hole of backside of Outdoor Unit Dry Contact.
• Insert the wire in the connection hole pushing the "Push" button.
• Setting Main PCB DIP SW of Master Outdoor Unit.
Mode Change
Push Button
Heating
Outdoor Unit
GND
GND
GND
Fan
Cooling
SODU IDU INTERNET DRY1 DRY2 GND 12V
GND
n Without Cool/Heat Selector Installation and Connection
In case, try to set mode without Cool/Heat Selector and try to use other switch except from LG Outdoor
Cool/Heat Selector in field.
Connect signal terminal block as below figure and description.
- How to set mode without Cool/Heat Selector
• Cooling Mode Setting
¿‘GND Connection
¡‘Off (Open)
• Heating Mode Setting
¿‘ GND Connection
¡‘GND Connection
• Fan Mode Setting
¿‘ Off (Open)
¡‘GND Connection
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