I have two thermostats. Downstairs zone is serviced by the Ecobee4. Upstairs by a programmable, unconnected thermostat. Upstairs zone does only AC, no heat there… and the thermostat runs on battery.
Early this morning, as the outdoor temps were in the midst of a 30 degree change, I had the scenario where ecobee had the heat on for downstairs while AC was on upstairs. Wife woke overheated at 4am and turned down the thermostat in order to turn on AC, while downstairs was cold so the heat went on.
I want to configure things so that if the upstairs AC goes on, the downstairs heat will not go on.
If it can be done with current configuration, that might work. Webcore will be the vehicle: whatever device config I use will tell webcore the upstairs AC is on, and thereby set ecobee to a setting where it can’t trigger the heat on. Perhaps a power meter on the upstairs AC unit. Or perhaps there exists a battery operated ST compatible thermostat. Or perhaps something I’ve not yet considered… any ideas??