I just bought my home and have been here about a month. I wanted to Replace the existing thermostat with a new Honeywell smart thermostat with WIFI. I don't know very much about the current system except that it was upgraded at some point. It uses a Buetler model ZCV2 smart vent controller that is wired and just laying on the unit in my attic. It is connected to a control unit on the wall. It has 4 wires . red, white , yellow and green. I see the unit is 12v at the control head. My new unit...
Little Help please Honeywell Wify thermostat upgrade replacing Beutler smart vent system
Little Help please Honeywell Wify thermostat upgrade replacing Beutler smart vent system
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