5. Wiring Diagrams
Indoor Units
SB/SC Chassis
CONNECTOR NUMBER LOCATION POINT FUNCTION
CN-POWER AC Power supply AC Power line input for indoor
CN-MOTOR Fan motor output Motor output of BLDC
CN-485 Communication Connection between indoor
CN-DISP1 Display Display of indoor status
CN-DISP2 Display Display of indoor status
CN-LEV EEV output EEV control output
CN-U/D Step motor Step motor output
CN-TH1 Room/inlet pipe sensor Room and inlet pipe thermistor
CN-TH2 Outlet pipe sensor Outlet pipe thermistor
CN-REMO Remote controller Remote control line
CN-CC Dry contact Dry contact line
CN-HVB Air clean Air clean control
CN-EXT External On/Off External On/Off signal input
CN-LEAK Refrigerant leak detector Refrigerant leak detector line
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