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Thread: Lennox

  1. #1
    Join Date
    Mar 2009
    Posts
    61

    Lennox

    replacing old lennox
    m#cha11-953-3w
    s#5685c00634
    can anyone tell me how do i find cooling capacity of the old unit
    Thank you

  2. #2
    Join Date
    Jul 2007
    Location
    Virginia
    Posts
    5,020
    Quote Originally Posted by mrbean View Post
    lennox m#cha11-953-3w
    can anyone tell me how do i find cooling capacity of the old unit
    91,000 BTUH @ 95f OAT, 80f IDB, 67f IWB
    Instead of learning the tricks of the trade, learn the trade.

  3. #3
    Join Date
    Mar 2009
    Posts
    61
    Ok you lost Me rundawg

  4. #4
    Join Date
    Dec 2002
    Location
    SouthEast NC ICW & Piedmont Foothills
    Posts
    7,619
    those are it's rated capacity


    7 1/2 ton unit


    @ march of 1985
    It`s better to be silent and thought the fool; than speak and remove all doubt.

  5. #5
    Join Date
    Mar 2009
    Posts
    61
    thank you

  6. #6
    Join Date
    Jul 2007
    Location
    Virginia
    Posts
    5,020
    Quote Originally Posted by mrbean View Post
    Ok you lost Me rundawg
    Sorry. I guess I should have explained it better.

    91,000 btuh /12,000 btuh per ton = 7.583 tons (when operating at the conditions stated below).

    or

    As dandyme said - assume you have a 7.5 ton unit.
    Last edited by rundawg; 04-15-2012 at 09:14 AM. Reason: typo
    Instead of learning the tricks of the trade, learn the trade.

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