LG ARNU 053 SBL4 - Electrical Wiring Diagram

40 | STANDARD
MULTI V Wall-Mounted Indoor Unit Engineering Manual
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STANDARD WALL-MOUNTED
Electrical Wiring Diagram
SB and SC Frames
PCB Connection Purpose Function
CN-POWER AC Power supply AC Power line input for indoor controller
CN-MOTOR Fan motor output Motor output of BLDC
CN-LIMIT Safety switch Front panel open / closed position
CN-HVB Air clean Air clean control
CN-LEV EEV output EEV control output
CN-U/D Step motor Step motor output
CN-DISP2 Display Display of indoor status
CN-DISP1 Display Display of indoor status
CN-CC Dry contact Dry contact line
CN-485 Communication Connection between indoor and outdoor units
CN-REMO Remote controller Remote control line
CN-TH1 Air / inlet pipe thermistor Air / inlet pipe thermistor connection
CN-TH2 Outlet pipe thermistor Outlet pipe thermistor connection
Figure 17: ARNU053~153SBL4, ARNU183-243SCL4 Wiring Diagram.
PLASMA
Table 24: SB, SC Frame Wiring Diagram Legend.