[PDF] ac capacity calculation

To estimate your AC tonnage needs, multiply the number of square feet you're cooling times 25. This equals the total number of BTUs you need to adequately cool your space. Next, divide that number by 12,000 to determine the tonnage capability you need in your new air conditioning unit.
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  • How do you calculate AC capacity in tons?

    Simply divide the BTUs by 12,000 to calculate the tonnage of your unit. For example, if your air conditioner is 36,000 BTUs, you have a 3-ton unit. Some manufacturers bury tonnage or BTU information in their model numbers. Look for an even, two-digit number between 18 and 60.

  • What is the room capacity for 1.5 ton AC?

    As mentioned before, a 1.5 ton AC is sufficient to cool a medium-sized room of up to 150 sq. ft. Though the size of the room is one of the major factors for buying a 1.5 ton AC, you must also consider other things, such as the number of electrical appliances, the number of windows and the number of people in the room.
  • 18 = 18,000 BTU or 1.5 tons. 24 = 24,000 BTU or 2 tons. 30 = 30,000 BTU or 2.5 tons.
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