I have a Tacker to start up. Have 7 RTU with rilitel?? also 2 units with zone dampers.
The install guys wired the com line from the main Tracker panel to the 1st Zone panel. That parts ok I can see the panel. Then they go out on comm 4 to all the zone dampers. that part looks ok to me. Then they go on comm 4 off the last zone damper to all the RTU's. that does not seem right to me.I would think they would have to go on the main comm line back to the main Tracker panel. I can not see anything other than the 1st zone panel.
This contractor claims to have done a lot of work for Trane. They say they wire like this all the time and the problem in mine. What do you think?