I have read from a previous thread https://www.hvactechgroup.com/hvacforum/index.php?topic=2423.msg7598#msg7598 (https://www.hvactechgroup.com/hvacforum/index.php?topic=2423.msg7598#msg7598) that the ecobee 4/3 could not control an hrv and a humidifier. Yet it appears to have all the connections to control them by having HUM and ACC+/-.
So can i setup an ecobee to run my 2 stage furnace, single stage AC, evaporator humidifier, and HRV?
many thanks!
It's only the Ecobee 3 Lite that can't control an HRV or humidifier. The Ecobee 4 can control an HRV or humidifier, but not both.
You would need 7 wires to control a humidifier or 8 wires to control the HRV.
ok then, what is recommended to drive a setup like mine. I have a nest 3 and i have the hrv running on a timer. I just think there has to be a better way... I can't be the only person w/ this hvac setup that wants the brains of a ecobee or nest thermostat. I really have to give creds to ecobee, theirs looks to be much more intuitive from a houses' thermo dynamic's aspect, the window thing, and the reverse staging is really smart.
In your case I would use the Ecobee to control the humidifier.
Yes, both Nest and Ecobee need to realize their shortcomings and design a thermostat with 2 sets of dry contacts.
I use the Honeywell Prestige 2.0 and it controls both HRV and humidifier.
I would agree the honeywell prestige 2.0 is the best thermostat on the market.