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Thread: variable?

  1. #1
    Join Date
    Jul 2008
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    variable?

    Should I opt for variable speed compressor for additional a/c unit. Unit going in is 2 ton american standard in the attic. I have one quote with variable speed compressor and one without. The one without includes extra ducts to balance system, and the variable one does not.

    What you guys think?

  2. #2
    Join Date
    May 2007
    Location
    DC Metro Area (MD)
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    Do you mean variable-speed air handler? Or two-stage compressor? I'm confused as to why the presumably more expensive option doens't include extra ducts to balance the system. A variable-speed blower isn't a cure for poor ductwork systems (not saying they can't help to some extent).

  3. #3
    Join Date
    Jul 2008
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    variable

    I am putting in a system in the second story because the original unit (which is staying to do downstairs) can not keep the upstairs cool. I am talking about a variable speed air handler, but this option does not include extra ductwork which I think I need. This one will just hook into the existing ductwork, which will not be able to handle 2 tons. The other quote includes an additional duct to each upstairs bedroom

  4. #4
    Join Date
    May 2007
    Location
    DC Metro Area (MD)
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    Something's not right with that. Ask your contractor why he left out the additional ductwork needed to handle 2 tons of airflow.

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