750mv vs 12v Thermostat Question UPDATE 2
Updated 29 Nov-- Update 2--29 Nov: got it to work. Not clear on the thermostat voltage for these things whether I can use the cheaper version or what. I want it for my furnace only set-up in the R...
Forum Discussion
Some mentioned about the adjustable swing feature on the better ones. I got the lower cost digital without that. I can see how that could be a useful feature in some scenarios.
I have no clue why those two blue wires have a voltage across them. I started out thinking it was just one of them that was being switched and the other was a ground. Didn't look closely enough at the old one before starting all this. Anyway it turns the voltage on and off between the two wires.
The blue wire shows up in the schematic here and there to the various furnace switches, so it must all have something to do with that instead of just switching one of them. Whatever. "Not my problem!" :)
I have no clue why those two blue wires have a voltage across them. I started out thinking it was just one of them that was being switched and the other was a ground. Didn't look closely enough at the old one before starting all this. Anyway it turns the voltage on and off between the two wires.
The blue wire shows up in the schematic here and there to the various furnace switches, so it must all have something to do with that instead of just switching one of them. Whatever. "Not my problem!" :)
