LG multi V ARUN Series Installation Manual page 83

Cool and Heater 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.
¨≠ ¨≠
¨≠
GND
< Outdoor Main PCB >
shows field wiring
connected wiring
❈ Communication line length can be maximum 300m, use communication line as thick as 1.25mm2.
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/ All OFF Mode Setting
¿ ' Off (Open)
¡ ' GND Connection
GND GND GND
¨ ¨
≠ ≠
¨
GND GND GND
≠
GND
<Outdoor Dry Contact Back Side >
3 1
4 2
3 1
4 2
GND
GND
GND
Electrical Wiring
Push Button
- Insert wire method -
Push arrow direction.
Insert wire to connector.
Installation Manual 83