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    chaserracer83's Avatar
    chaserracer83 Posts: 16, Reputation: 1
    New Member
    		  
    #1

    Aug 24, 2014, 08:40 PM
    Replace 8 wire thermostat with Nest thermostat
    Hello,

    I am trying to replace my existing thermostat with a Nest Learning Thermostat. My existing thermostat is part of a smart home system and has a bunch of wires. I am not interested in keeping the smart home features; I just want the AC unit to work with the new thermostat. Can anyone tell me which wires I should use from the old thermostat and where to put them on the new one?

    Old thermostat:
    Label - Wire Color
    R - Red
    G - Green
    O - Orange
    B - Black
    C - Blue
    Y - Yellow
    W2 - White
    There is also a brown wire that goes off to the side and attaches to an unlabeled connection.

    New Thermostat:
    Y1
    Y2
    G
    OB
    Rc
    W1
    W2/Aux
    C
    *
    Rh

    Thank you for your help.
    Chase
    bitters's Avatar
    bitters Posts: 348, Reputation: 12
    Full Member
    		  
    #2

    Aug 25, 2014, 05:49 AM
    What is the model number of the old stat?
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