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    Jantel's Avatar
    Jantel Posts: 3, Reputation: 1
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    #1

    Nov 28, 2008, 05:04 PM
    Programmable thermostats
    I have a Honeywell manual thermostat and I want to put in a digital programmable thermostat. My manual stat has 6 wires and my new programmable has 5 ports, do I use all of the wires or do I need a different thermostat?
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
    Heating & Air Conditioning Expert
    		  
    #2

    Nov 28, 2008, 05:30 PM
    https://www.askmehelpdesk.com/heatin...00-284131.html
    mygirlsdad77's Avatar
    mygirlsdad77 Posts: 5,713, Reputation: 339
    Plumbing Expert
    		  
    #3

    Nov 28, 2008, 06:02 PM

    How may wires are connected at furnace. What colors go to what terminals(at furnace). Give us some more info and we will try to help.
    Jantel's Avatar
    Jantel Posts: 3, Reputation: 1
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    #4

    Nov 28, 2008, 06:20 PM
    6 wires connected R,Y,B,O,G,W
    THE HONEYWELL HAS Rh,Rc, W, Y, G
    mygirlsdad77's Avatar
    mygirlsdad77 Posts: 5,713, Reputation: 339
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    #5

    Nov 28, 2008, 06:28 PM

    Do you have a heat pump system? Or two stage forced air system? Doenst look like your knew thermostat is compatible with your system. Please let me know what type of system you have.
    Jantel's Avatar
    Jantel Posts: 3, Reputation: 1
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    #6

    Nov 28, 2008, 06:30 PM

    Neither of those. I have a honeywell maual LR69071 and am trying to replace it with a Honeywell programmable RTH230B.
    mygirlsdad77's Avatar
    mygirlsdad77 Posts: 5,713, Reputation: 339
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    #7

    Nov 29, 2008, 05:19 PM

    Okay, Im not asking about the thermostats. Im asking what type of system the thermostat is controlling. The thermostat has to be compatible with the actuall heating/cooling system. If you aren't quite sure what type of system you have, I would recommend calling for onsite help. Good luck and please let me know how it all works out.
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
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    #8

    Nov 29, 2008, 05:24 PM
    6 wires is usually a heat pump thermostat.
    The honeywell you have only has 5 places for wires you say so the thermostat you are trying to use will not work.

    BTW I have the Honeywell master catalogue that goes back 50 years and the number you posted for the old one is not in it. Sorry
    baldy9374's Avatar
    baldy9374 Posts: 2, Reputation: 1
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    #9

    Jan 31, 2010, 01:20 PM
    Quote Originally Posted by Jantel View Post
    I have a Honeywell manual thermostat and I want to put in a digital programmable thermostat. My manual stat has 6 wires and my new programmable has 5 ports, do I use all of the wires or do I need a different thermostat?
    Thanks for the Help.
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