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Thread: Why upstairs?

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  1. #1
    Join Date
    Apr 2005
    Location
    dallas
    Posts
    19
    Why put the smaller unit upstairs.If you need 5 tons of air,Why put 3 tons downstairs and 2 tons upstairs?Why not 2.5 tons up &2.5 down?

  2. #2
    Join Date
    Apr 2005
    Location
    dallas
    Posts
    19
    Most of the residents complain about how hot it is upstairs.Almost 90%.Most of those customers have the smaller unit upstairs.

  3. #3
    Join Date
    Jul 2002
    Location
    Zelienople, Pa
    Posts
    2,965
    Run load calculations on the 2 floors and this will tell you what goes where.
    How tall are you Private???!!!!

  4. #4
    Join Date
    Jan 2003
    Location
    Kansas City
    Posts
    1,482
    That sounds like a rule of thumb heat load calculation. 800 sq ft upstairs is a 2 ton a/c and 1200 sq ft downstairs is a 3 ton. A proper heat load calculation determines how much cooling you need on each floor and in each room. Sounds like this may not have been done properly.

  5. #5
    Join Date
    Sep 2004
    Posts
    3,157
    what did the installing contractor determine when they did the manual J

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