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DAN GREENE
Jan 6, 2009, 07:59 AM
I am replacing a white-rodgers 1f58-72 thermostat with a hunter 44860. I have a wire marked x1 wich is blue that does not show on the hunter wire diagram I have a 2 stage heat and 1 stage coolong system..is the x1 the second heat stage?
hvac1000
Jan 6, 2009, 01:24 PM
The only true way to know is track the blue wire down to the furnace and see where it hooks up to.