LG ARUN096BT2 Installation Manual - Page 52
Hz, Example Connection of Communication Cable
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Electrical Wiring 5.1 60Hz x Example Connection of Communication Cable s 1 Outdoor Unit - 3Ø, 460V 3 Phase 3 Wires Power supply 60Hz 460V (Main Switch) Power supply switch (Switch fuse : ELCB) Power supply switch (Switch) Power supply 1 Phase 60Hz 208/230V 3 Phase 3 Wires Power line(R, S, T) Communication line (3 line): Wired remote control Single Phase of power supply line(L(1),L(2)) Communication line (2 shield line): Between Indoor Unit and Outdoor Unit Pull Box(Installer Option) WARNING • Indoor Unit ground Lines are required for preventing electrical shock accident during current leakage, Communication disorder by noise effect and motor current leakage (without connection to pipe). • Don't install an individual switch or electrical outlet to disconnect each of indoor unit separately from the power supply. • Install the main switch that can interrupt all the power sources in an integrated manner because this system consists of the equipment utilizing the multiple power sources. • If there exists the possibility of reversed phase, lose phase, momentary blackout or the power goes on and off while the product is operating, attach a reversed phase protection circuit locally. Running the product in reversed phase may break the compressor and other parts. Between Indoor and Master Outdoor unit SODU IDU INTERNET DRY1 DRY2 GND 12V BA BA Master Outdoor unit 3(A) 4(B) 3(A) 4(B) 3(A) 4(B) The GND terminal is a '-' terminal for the central controller, not Ground Line 52 Outdoor Unit