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    panamjim's Avatar
    panamjim Posts: 1, Reputation: 1
    New Member
    		  
    #1

    May 5, 2009, 02:39 PM
    A/C capacity requirement
    What is the formula for figuring how many tons of cooling are required for a given area?
    Joshdta's Avatar
    Joshdta Posts: 2,549, Reputation: 45
    Ultra Member
    		  
    #2

    May 5, 2009, 02:42 PM

    How much sf do you have?
    Stratmando's Avatar
    Stratmando Posts: 11,188, Reputation: 508
    Uber Member
    		  
    #3

    May 5, 2009, 02:43 PM

    See if this helps:
    AC Direct - How to Size Your System
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
    Heating & Air Conditioning Expert
    		  
    #4

    May 7, 2009, 04:06 AM
    Another option LOL
    Attached Images
  1. File Type: pdf Air%20Conditioner%20or%20Heat%20Pump%20Sizing%20Chart.pdf (21.9 KB, 122 views)
    2. dac122's Avatar
    dac122 Posts: 463, Reputation: 17
    Full Member
    		  
    #5

    May 7, 2009, 05:22 AM

    For a small area within a building you go with the sf rule of thumb, but to properly size a residence you really should do a Manual J.
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