LG MULTI V ARNU18GTQA4 - Wiring Diagrams

Indoor unit
Ceiling Concealed Duct(Low Static) _ 7
Indoor Units
5. Wiring Diagrams
CONNECTOR NUMBER SPEC. DESCRIPTION
CN-MOTOR1 Fan motor output Motor output of BLDC
CN-MOTOR2 Fan motor output Motor output of BLDC
CN-PIPE_OUT Discharge pipe sensor Pipe out thermistor
CN-PIPE_IN Suction pipe sensor Pipe in thermistor
CN-ROOM Room sensor Room thermistor
CN-REMO Remote controller Remote control line
CN-FLOAT Float switch input Float switch sensing
CN-EEV EEV output EEV control output
CN-D_PUMP Drain pump output AC output for drain pump
CN-OPTION Option PWB. Communication between main and option
CN-COM Communication Communication between indoor and outdoor
CN-POWER AC power supply AC power line input for indoor controller
CN-ZONE Zone Controller Zone control line
CN-DISPLAY RF Remote controller RF remote control line
CN-CC Dry contact Dry contact line
CN-EXT External On/Off External On/Off signal input
L1 Chassis
CAUTION
For Multi V Models, DIP switch 1, 2, 6, 8 must be set OFF.
Function Description Setting Off Setting On Default
SW1 Communication N/A (Default) - - Off
SW2 Cycle N/A (Default) - - Off
SW3 Group Control Selection of Master or Slave Master Slave Off
SW4 Dry Contact Mode Selection of Dry Contact Mode
Wired/Wireless remote controller selec-
tion of Manual or Auto operation Mode
Auto Off
SW5 Installation Fan continuous operation Continuous operation Removal - Off
SW6 Heater linkage N/A - - Off
SW7
Ventilator linkage Selection of Ventilator linkage Linkage Removal Working
Off Vane selection (Console) Selection of up/down side Vane Up side + Down side Vane Up side Vane Only
Region selection Selection tropical region General model Tropical model
SW8 Etc. Spare - - Off