LG Multi V Art Cool ARNU093SFA4 Engineering Manual page 31

Figure 13: ARNU053~153SJR4 and ARNU183-243SKR4 Wiring Diagram.
Table 14: SJ and SK Frame Wiring Diagram Legend.
PCB Connection
CN-POWER
CN-MOTOR
CN-EEV
CN-U/D
CN-DISP2
CN-DISP1
CN-CC
CN-EXT1
CN-485
CN-REMO
CN-LEAK
CN-TH3
CN-TH1
CN-TH2
CN-PTC
CN-WF
*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.
External ON / OFF controller
Refrigerant leak detector
Return air and inlet pipe thermistor
Due to our policy of continuous product innovation, some specifications may change without notification.
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ART COOL MIRROR
Purpose
AC power supply
Fan motor output
EEV output
Step motor
Display
Display
Dry contact
Communication
Remote controller
Float switch
Outlet pipe thermistor
Auxiliary heater
Wi-Fi module
Electrical Wiring Diagram
SJ and SK Frames
3-18
Function
AC Power line input for indoor controller
Motor output of BLDC
EEV control output
Step motor output
Display of indoor status
Display of indoor status
Dry contact connection
External ON / OFF controller connection
Connection between indoor and outdoor units
Remote control connection
Refrigerant leak detector connection
Float switch connection
Return air and inlet pipe thermistor connection
Outlet pipe thermistor connection
Auxiliary heater connection
Wi-Fi module connection
ART COOL | 31
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