I previously had a single zone set up with 1 circulator. So i added an extra zone. Still have 1 circulator pump and I also picked up a tacozvc 403-4 box to set it up. My question is how can i rewire it to work? And can i use 1 smart thermostat with room sensors for convenience or do i need a second thermostat? (I would get another ecobee and pair them in 1 app for convenience). Apparently the ecobee is multizone though. I would like to use just one thermostat.
In the picture below is what have currently before having rewired anything. I havent touched any of the exisitng wiring yet. I just have the piping part of it done and need to figure out the wiring. I also drew up an idea of how i think it should work. But just wanted some opinions before i start anything. If i need two thermostats i would just use the green and yellow for the 2nd thermostat.