YMGI
•
Your Modern Green Idea
45
Fig. 45
2.
All communication wires of VRF are connected by screws.
Fig. 46
3.
If a single communication wire is not long enough and needs to be connected, the connected joint must be
welded or pressure-welded. Do not simply twist the wires together.
Communication address
Auto addressing technology is adopted for VRF IDU and ODU. No need to set address codes manually. Only the
addresses of the master unit and central control need to be set (address of central control is only needed when
there are multiple refrigeration systems).
When installing remote monitor or central controller, displacement on indoor units’ project codes must be made.
Otherwise, there will be collision malfunction of the project codes. For detail operation methods, please refer to the
VRF Installation and Maintenance Manual.
