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  1. 10-05-2012, 08:13 PM #1
    sandman512
    sandman512 is offline Regular Guest
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    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!
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  2. 10-05-2012, 08:15 PM #2
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    beenthere
    beenthere is offline Global Moderator
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    That zone panel controls staging. or at least it should be set to do so.
    Contractor locator map

    How-to-apply-for-Professional

    How many times must one fix something before it is fixed?
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  3. 10-06-2012, 07:12 PM #3
    SBKold
    SBKold is offline Professional Member*
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    You also should notice significant change in indoor air flow between stages.
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