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    texcan1's Avatar
    texcan1 Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Dec 21, 2008, 03:32 PM
    Thermostate Change out.
    I am changing out a Robershaw unit with a Honeywell RTH3100C. The wiring on the Robertshaw was..

    R - to RH
    Y - to Y
    G - to G
    W - to W

    Should they go as followed on the Honeywell?

    R to R
    Y to Y
    RH to R
    W to Aux

    Thanks
    KC13's Avatar
    KC13 Posts: 2,556, Reputation: 99
    Ultra Member
    		  
    #2

    Dec 21, 2008, 03:44 PM

    Aux terminal is usually present on a heat pump thermostat. This may not be the right type for your system.
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