Replacing Honeywell Thermostat on oil fired boiler, electric CAC. Existing stat has wires Rc R Y C W G.
The compatibility checker online says the Nest should be compatible. However, when I use the app that pops up after scanning the QR code, I get a message that the Nest is NOT compatible. I note that the backplate for the Nest has no Rc connection.Am I out of luck, or should the Rc go to the *OB connector?
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