First time posting a question! But have been reading the questions/answers here for a while now.
Ok- so I have a brand new Goodman Heat Pump system (GSZC + AVPTC air handler) I’ve installed in my house. My duct layout is broken out into 3 zones. I have 3 Nest thermostats, one for each zone. Zoning is controlled by ZoneFirst H32P panel. The zone control panel has a dedicated 24V transformer that provides power to the dampers and will also power the thermostats (from Rc to C terminals on both Nest and zone panel).
My air handling unit (Goodman AVPTC) has its own 24V transformer which powers the control board in the air cabinet, and if wired appropriately can power the thermostats (I’ve tested this by bypassing the zone control panel and wired one thermostat directly to air handler).
My question is what is the right way to have the R and C wires set up for this application where there is a dedicated transformer for each piece of equipment? Should I not have an R wire going from zone panel (top right in picture) to air handler board? My thinking is it’s not necessary to have an R connection between zone board and air handler they’re getting their own 24v supply?
Below is image of the zone control panel:
And here’s a picture of the terminal block in the air handler (pay no attention to wires connected at the moment):