I have a two level home with a single HVAC and thermostat downstairs. The upstairs gets too hot and I want to turn it into a two zone system. I currently have an AEON multi sensor upstairs that prevents the heat from turning on if it’s too hot upstairs. This of course makes the downstairs a little bit on the cooler side but we prefer this in the interim.
I was thinking with a temperature control upstairs and downstairs, that I could simply close a valve preventing hot air from reaching all of the upstairs vents when the temperature is sufficient upstairs. I wouldn’t need a valve downstairs since there would never be a case where the upstairs would be colder than it is downstairs. The HVAC guy we had over said we’d also need a bypass valve in case the pressure in the system gets too high it can recirculate that air and protect the system.
So is this plausible? Any better ideas?
Edit: Here is an example of using Zwave to control a damper to a single room. I would just want to use Zwave similarly to control a damper to the entire upstairs. http://community.ziy.io/ziy-automated-hvac-damper/