Stumped on wiring of thermostat

ckarsteter Posts: 1, Reputation: 1

New Member

Jul 23, 2011, 09:20 AM

Stumped on wiring of thermostat

I have bought a new thermostat, honeywell RTH2510, my old wiring has wires connected to W1,X,Y1,Y2,G,RH&RC. My new thermostat has terminals labeled O/B,Y,R,G,&W/AUX.Where does Y2 wire connect?

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