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    k14705's Avatar
    k14705 Posts: 2, Reputation: 1
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    #1

    Jul 29, 2009, 06:50 AM
    wiring for old seven wire Lennox thermostat
    I have a thermostat with the following terminals--X-F-V-Y-M-R-VR. What wires go to what terminal? Thank you!
    Stratmando's Avatar
    Stratmando Posts: 11,188, Reputation: 508
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    #2

    Jul 29, 2009, 06:53 AM

    The Air Handler should be opened up to see which wires are used and what they are for.
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