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Field Wiring
10/12,5/15 RT – 220 V3~ 60 Hz
Power supply
3 Phase 3 Wires
60Hz 220V
(Main Switch)
Switch
ELCB
Power Line
(3 Wires Cable)
CAUTION
!
• Unit ground Lines are required for preventing electrical shock accident during current leak-
age,
Communication disorder by noise effect and motor current leakage (without connection to
pipe).
• Install the main switch that can interrupt all the power sources in an integrated manner be-
cause 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 cir-
cuit locally.
Running the product in reversed phase may break the compressor and other parts.
R(L1) S(L2) T(L3)
INSTALLATION OF UNIT
21
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