LG JRNU15GTPA4 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 Air Intake Unit, separate Fresh
Air Intake Unit with standard units. (N, M
 Other than those, it is same with Group Control 1.
FAU
Indoor Unit
16
FAU
Slave
Display Error Message
FAU Standard Standard
or
Master
N
Master
16)(Because setting temperature are different.)
FAU
LGAP Network System
Slave
M
Display Error Message
FAU Standard
* FAU : Fresh Air Intake Unit
Standard: Standard Indoor Unit
GND
Signal
12 V
Standard