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

    Jun 7, 2008, 10:19 AM
    matching the wires
    I need wiring instructions. I have a Trane Weathertron thermostat and I want to replace with a Honeywell RTH7400. The Trane Weathertron terminals are as follows:
    B= Blue
    X2=Black
    W= White
    T= Brown
    G= Green
    O= Orange
    Y= Yellow
    R= Red

    The Terminals on the Honeywell RTH7400 are:

    C
    G
    Y
    O/B
    AC
    R
    W2
    Y2

    I need to know which wires go to the RTH7400 terminals
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
    Heating & Air Conditioning Expert
     
    #2

    Jun 7, 2008, 11:54 AM
    Quote Originally Posted by natalston
    I need wiring instructions. I have a Trane Weathertron thermostat and I want to replace with a Honeywell RTH7400. The Trane Weathertron terminals are as follows:
    B= Blue
    X2=Black
    W= White
    T= Brown
    G= Green
    O= Orange
    Y= Yellow
    R= Red

    The Terminals on the Honeywell RTH7400 are:

    C
    G
    Y
    O/B
    AC
    R
    W2
    Y2

    I need to know which wires go to the RTH7400 terminals
    Here you go.
    Attached Images
  1. File Type: pdf heat pump wiring.pdf (13.3 KB, 123 views)

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