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

    Apr 25, 2011, 09:01 PM
    How to install a rth2300?
    I am replacing my old manual thermostat with a new programmable honeywell 2300. My old one only has a white and red wire. Were would I connect the wires? I just have a gas furnace, no AC.
    ma0641's Avatar
    ma0641 Posts: 15,675, Reputation: 1012
    Uber Member
    		  
    #2

    Apr 26, 2011, 04:39 PM
    You only need 2 wires for heat. The new T'stat should have an R and a W terminal. Connect your wires to them. Didn't it come with instuctions?
    ballengerb1's Avatar
    ballengerb1 Posts: 27,378, Reputation: 2280
    Home Repair & Remodeling Expert
    		  
    #3

    Apr 26, 2011, 05:19 PM

    This is a HVAC question and should not be in exterior home improvement. Try this to help you understand the wires https://www.askmehelpdesk.com/heatin...eat-58313.html
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