Electrical Wiring Diagram - LG ARNU363SVA4 Engineering Manual

Figure 31: ARNU053~153SBL4 and ARNU183-243SCL4 Wiring Diagram.
Table 25: SB and SC Frame Wiring Diagram Legend.
PCB Connection
CN-POWER
CN-MOTOR
CN-HVB*
CN-LEV
CN-U/D
CN-DISP2
CN-DISP1
CN-CC
CN-485
CN-REMO
CN-EXT1
CN-TH1
CN-TH2
CN-TH3
External ON / OFF controller
Return air and inlet pipe thermistor
Outlet pipe thermistor
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STANDARD WALL-MOUNTED
Purpose
AC Power supply
Fan motor output
Air cleaner*
EEV output
Step motor
Display
Display
Dry contact
Communication
Remote controller
Float switch

Electrical Wiring Diagram

Function
AC Power line input for indoor controller
Motor output of BLDC
Air cleaner control*
EEV control output
Step motor output
Display of indoor status
Display of indoor status
Dry contact line
Connection between indoor and outdoor units
Remote control line
External ON / OFF controller connection
Return air and inlet pipe thermistor connection
Outlet pipe thermistor connection
Float switch connection
STANDARD | 49