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

Ultra Heat GMV VRF Technical Service Manual_Heat Recovery Serial
2) While installation, please make sure the metal parts are taken down. Then fasten the compressor
fixed nuts again and re-wrap the soundproof material.
Note: if the unit is operating with the metal parts stay, it may lead to compressor abnormal
vibration; even reduce the lifespan of the unit.

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