No VRV Devices Communicating
Every VRV indoor unit must be assigned a group address and an airnet address at the local wall controller. Every outdoor unit must be given an airnet address at the unit. Make sure that all devices have been addressed correctly, and addresses are unique per each DIII-Network.
VRF Adapter Issue
Check the LED lights on the front of the VRF Adapter.
- No light = No power to the adapter. Check power source to USB expander
- Green = Powered on
- No light = No data on DIII-Net bus. Check units are on and active
- Blinking Blue = Data present on DIII-Net bus
- No light = Normal
- Solid Amber = Power issue or data inconsistency. Check power supply at USB expander
- Blinking Amber = Data collision. Check VRV system wiring
Correct and Active Port
Make sure the port you are using for DNET discovery is active. In the Hub UI check in Network → Interface. Active ports are denoted with a green circle. Automations VRF Adapters will be connected to USB ports, generally usb1.1 - usb1.7, corresponding to ports 1-7 on the USB expander. If the port is not green and the VRF Adapter is powered, make sure the USB connection between the Hub, USB Expander and VRF Adapter are secure.
Only Some VRV Devices Communicating
Discovery Timeout Too Short
If not all the VRV devices on a network are found while running discovery. The Timeout in Second may have been too low, especially on larger VRV networks. Adjust the timeout length up and rerun discovery.
VRV Device not Connected
If the same devices are not appearing on repeated attempts to discover them, check the physical VRV unit. Ensure the VRV device is powered and the F1F2 network cables are well terminated.
Other VRV Communication Issues
Restart after physical cable change
If the VRF Adapter has been unplugged and plugged into a new USB port or the F1F2 DIII-Network bus has been removed and a different DIII-Network bus has been terminated, the Turntide Hub must be restarted.
Hub7 USB Ports
The Hub7 has four USB ports.
It might be difficult for installers to tell how the ports are numbered.
Please refer to this diagram.