I have 5 Carrier Comfort Zone ll HVAC systems installed, each has a maximum of 4 zones. I control all of this with a kluged up PC application supplied by our local Carrier dealer many years ago.
The PC control function is really an RS 232 switch. So when you want to program system 1 and it's 4 zones you turn the knob to "A". Once you have selected the sytem you can change any of the zones. This system is very cumbersome to use. THe biggest problem is since it really thinks it is dealing with one HVAC system you can't use name controls for each zone. It is also NOT compatible with any home control system (I have Crestron).
It seems Carrier has the only thermostat that can control zones within a system.
My question is can I upgrade to an Infinity control system or something comparable? I would like to hook into my Crestron control system. My Crestron guy can't find a solution either.