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  1. #1
    Join Date
    Aug 2007
    Post Likes

    I have a TWO STAGE A/C, but not sure if it operates as a TWO STAGE...

    So, I have the following setup:
    Lennox XC 21 Air Conditioner.
    Lennox CBX32MV Variable Speed, Multi-position Air Handler
    Harmony III Zoning----Two Zones.
    How can I tell if I am getting the benefits of the Two Zone system? Should the stat contain certain wires? Is this done at the zoning board? Thank you!

    FWIW, the house had a one zone system prior to having this new system installed. Thanks!

  2. #2
    Join Date
    Jan 2004
    Post Likes
    That zone panel controls staging. or at least it should be set to do so.
    Contractor locator map


    How many times must one fix something before it is fixed?

  3. #3
    Join Date
    Feb 2009
    Tallahassee, FL
    Post Likes
    You also should notice significant change in indoor air flow between stages.

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