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    Pappa_Bear5's Avatar
    Pappa_Bear5 Posts: 1, Reputation: 1
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    #1

    Mar 7, 2009, 05:49 PM
    Honeywell wires. What do I do with my "T" wire?
    I am installing a honeywell rth 3100c and all my wires coordinated except:

    No "B" wire...

    No "E" wire...

    I have a "T" wire


    Can anyone help?
    acetc's Avatar
    acetc Posts: 1,004, Reputation: 79
    Ultra Member
    		  
    #2

    Mar 7, 2009, 08:41 PM

    The "T" terminal on old thermostats was for a thermister located in the outside unit on heat pumps. Just tape it off and don't use it, you don't need it.Good luck, Mike
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