STANDARD | 75
Standard Wall-Mounted
Due to our policy of continuous product innovation, some specications may change without notication.
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STANDARD WALL-MOUNTED
Electrical Wiring Diagram
SV Frames
Figure 26: ARNU303SVA4 and ARNU363SVA4 Wiring Diagram.
Table 37: SV Frame Wiring Diagram Legend.
*To enable Generation 4 features, outdoor unit DIP switch no. 3 must be set to ON. Please refer to the Multi V 5, Multi V IV, Multi V Water IV, Multi V
S Engineering Manual for additional information.
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-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 connection
CN-485 Communication Connection between indoor and outdoor units
CN-REMO Remote controller Remote control connection
CN-EXT1 External ON / OFF controller External ON / OFF controller connection
CN-TH1 Return air and inlet pipe thermistor Return air and inlet pipe thermistor connection
CN-TH2 Outlet pipe thermistor Outlet pipe thermistor connection
CN-TH3 Float switch Float switch connection
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