Expansion tank sizing?

Discussion in 'HVAC Heating & Cooling' started by armand, Jun 5, 2008.

  1. armand

    armand New Member

    Joined:
    Jun 5, 2008
    Hi guys, I am an engineering technologist that is new to the field. We are doing a retrofit on some apartment buildings and we need to switch over from an older style expansion tank (without diapraghm) to the new style. We were wondering if there is a quick easy method to use the old one's size to select a new one.
     
  2. jadnashua

    jadnashua Retired Defense Industry Engineer xxx

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    Sep 2, 2004
    Occupation:
    Retired Systems engineer for defense industry.
    Location:
    New England
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  4. armand

    armand New Member

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    Jun 5, 2008
    Oops, my bad, I forgot to mention that the main problem is we are trying to size it without knowing the sytem volume, thus the reason for using the old one's size.
     
  5. jadnashua

    jadnashua Retired Defense Industry Engineer xxx

    Joined:
    Sep 2, 2004
    Occupation:
    Retired Systems engineer for defense industry.
    Location:
    New England
    Putting in an oversized one wont' affect system performance, but adds to the costs and space requirements.
     
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