LG ARUN50LH2A Installation Manual page 52

Electrical Wiring
Cool/Heat Selector Installation and Connection(Heat pump only)
■ 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.
SODU
Outdoor Unit
Outdoor Unit
■ 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
➀ ➔ GND Connection
➁ ➔ Off (Open)
• Heating Mode Setting
➀ ➔ GND Connection
➁ ➔ GND Connection
• Fan Mode Setting
➀ ➔ Off (Open)
➁ ➔ GND Connection
52 Outdoor Unit
IDU INTERNET
GND
DRY1 DRY2 GND
Mode Change
Mode Change
Heating
Heating
GND
GND
GND
12V
Fan
Cooling
Push Button
Push Button
Fan
Cooling