I’m having a confusion moment while I anxiously await the shipping and delivery of my thermostat. ( Mid December is here! it should be any day now)
My understanding of the wiring is it wont work on a standard 2 thermostat wire system ( which is simply a switch connecting the 2 wires together) because it needs a 3rd “c” wire added which supplies 24vac to light up the thermostat( and memory I would assume)
so My question is, Only the 3rd 24vac wire is needed? it doesnt need a ground wire? how does that work?