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    p23's Avatar
    p23 Posts: 2, Reputation: 1
    New Member
    		  
    #1

    Aug 27, 2006, 08:11 PM
    thermostat wire colors
    I just removed my old mechanical thermostat. The wire colors were:

    W = white
    G = green
    R = ref
    Y = yellow
    O = Orange

    The rth230b has: W, Y, Rc, Rh, and G. I initially installed the Red in Rc, Y, W, and G. I did nothing with the O wire. When I turned the system on the thermostat started to smoke. I realized that for a 5 wire system I do not need the jumper. However, where do I place the O and R wires. I also have Blue and Black wires coming out of the wall, but they were never used. I have an electrical central a/c unit.

    Any help would be appreciated.

    Thanks!
    letmetellu's Avatar
    letmetellu Posts: 3,151, Reputation: 317
    Ultra Member
    		  
    #2

    Aug 27, 2006, 08:52 PM
    What type system do you have... Is it a heat pump... a heat pump with auxiliary heat or is it a split system air conditioning with a separate heating.?
    p23's Avatar
    p23 Posts: 2, Reputation: 1
    New Member
    		  
    #3

    Aug 28, 2006, 06:05 AM
    It is a split system
    tkrussell's Avatar
    tkrussell Posts: 9,659, Reputation: 725
    Uber Member
    		  
    #4

    Aug 28, 2006, 07:02 AM
    Well first of all, with the smoke the stat is cooked. Need to determine the purpose of the wires to determine the correct stat you need.
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