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    diyLLL53's Avatar
    diyLLL53 Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Nov 3, 2009, 01:01 PM
    Multi stage furnace and A/C or not?
    I want to replace a grossly inaccuate thermostat (ITT w/ 2 separate dials) and the wiring coming to the thermostat has 6 wires; green connected to (G), black connected to W1, blue to RC, red to RH, yellow to Y1, and white to Y2. Is this a multi stage issue?
    The Programmable electronic one I purchased from ACE HDWR shows 5 wire config. not a six.

    Please give advice!
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
    Heating & Air Conditioning Expert
    		  
    #2

    Nov 3, 2009, 03:08 PM
    Well it looks like there is 2 stages of cooling from the Y1 and Y2. What equipment do you have? BTW your color code is off.
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