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    jaggir10's Avatar
    jaggir10 Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Jun 11, 2006, 12:50 PM
    Matching wires on new honeywell thermostat
    My old thermostat was janitrol HPT 18-60 and wires were:
    Y (yellow)
    G (orange)
    R (Red)
    O (orange)
    W2 (white)
    E (Black)
    C (Blue)

    I just bought a Honeywell #RTH6300B. Their wires are: G,W,Y, R,RC. How can I match them up? Do I need the "O" on the old one? We are only getting hot air now by matching Y-Y, G-G, R-R, W2-W, orange, brown, and blue are not connected at this time... Any help would be GREATLY appreciated!
    tkrussell's Avatar
    tkrussell Posts: 9,659, Reputation: 725
    Uber Member
    		  
    #2

    Jun 24, 2006, 04:47 AM
    Sorry for the delay, just noticed your post. Even thou you probably all set by now I will still offer that you appear to have a heat pump system, judging by the O, which usually is for a reversing valve, W2 which usually is for the auxiliary heat when the ambient air does not contain enough latent heat available, and E, which I do not know at this time.

    The new stat you have is only for a standard heating/cooling system and will not control your system, as the other wire will need to be used.

    Again, sorry for not seeing your post in time. Hope this helps.
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