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    marlaj's Avatar
    marlaj Posts: 1, Reputation: 1
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    #1

    Feb 1, 2012, 05:10 AM
    2 wire heat thermostat and 2 wire air thermostat want to wire to a programmable
    2 wire heat thermostat and 2 wire air thermostat want to wire both to a programmable thermostat, need wiring information
    wmproop's Avatar
    wmproop Posts: 3,749, Reputation: 91
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    #2

    Feb 1, 2012, 05:20 AM
    On the norm it would be red to r, white to w green to g, and yellow to y,, but, in your case you need to go to the furnace and find out what the colors are comeing from, since I don`t know what kind of furnace you have I can`t say wheather to look at the circuit board so just match the wires from the furnace and ac as needed
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