Installation Of The Communication System - Gree Ultra Heat GMV Multi VRF Heat Pump Series Service Manual

Ultra Heat GMV VRF Technical Service Manual
NOTICE! Provide a threading rubber ring when threading a strong power cable or a communication
cable.

3 INSTALLATION OF THE COMMUNICATION SYSTEM

The CAN communication network is adopted for Ultra Heat GMV VRF system. Manual DIP or
identification on polarities of the communication power is not required for the IDU. Only the function DIP
needs to be set for the ODU. For details, see the description on function setting of the ODU.
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INSTALLATION