Procedure For Installing The Power Cable - Gree Ultra Heat GMV Multi VRF Heat Pump Series Service Manual

Ultra Heat GMV VRF Technical Service Manual
power of the IDU or ODU.
NOTICE! Maximum number of IDU is based upon ODU capacity. For details, please refer to
the introduction of units' combination.
① 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).
② Don't install an individual switch or electrical outlet to disconnect each of indoor unit separately
from the power supply.
③ 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.
④ 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.
NOTE:
The maximum number of connected IDUs (n) is determined based on the capacity of the ODU. For
details, see the description on unit capacity configuration.

2.3 Procedure for Installing the Power Cable

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INSTALLATION