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  1. #1
    Join Date
    Mar 2005
    Location
    Georgia
    Posts
    396
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    chiller room exhaust fan sizing

    I need some help sizing a ventalation exhaust fan for a chiller/pump room. I have been told it should be sized based on amount of refrigerant in chiller? Something like 3 cfm per lb of refrigerant. Or should it be based simply on X number of air changes per hour.

  2. #2
    Join Date
    Aug 2002
    Location
    Southold, NY
    Posts
    7,815
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    There is a calculation based on total charge. Do a search on the ASHRAE site for more details.
    http://www.ashrae.org/

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