LG PRVC1 Installation Manual page 12

Installation Method
6. Connect the red wire of transformer to the terminal block (2Pin yellow terminal block).
7. Connect a power cable (DC 12V) to CN_PWR (12V, GND) of LAC
Step 6
8. Connect the common wire of Damper Actuator of Master Unit & Slave Unit to the terminal block and connect the
wire of LAC(CN_AO(GND(A-)) to the common wire of Damper Actuator of Master Unit & Slave Unit.
9. Connect the wire of AC 24V of Damper Actuator of Master Unit & Slave Unit to the terminal block.
Step 8
AC 24V Power
for Damper Actuator
of Master & Slave
Common
12 Low Ambient Control Kit
GND
Step 7
Step 9
AC 24V
AC 24V Power
for Damper Actuator
of Master & Slave
Common
GND 12V
CN_PWR
GND