LG MULTI V ARNU07GBHA4 Installation Manual page 16

Installation
3. Group Control 3
Mixture connection with indoor units and Fresh Air Intake Unit
FAU
Master
Master
In case of connecting with standard indoor unit and Fresh Intake Unit, separate Fresh Air Intake
Unit with standard units. (N,M≤16)
(Because setting temperature are different.)
Other than those, it is same with Group Control 1.
FAU
16 Indoor Unit
FAU
Slave
Display Error Message
FAU Standard Standard
or
Master
Master
FAU
LGAP Network System
Slave
FAU Standard
* FAU : Fresh Air Intake Unit
Standard: Standard Indoor Unit
GND
Signal
12 V
Standard