Determining the size of your outdoor heat pump condenser unit: Is it properly sized for the home?

In most all cases, the equipment model number has the size of the unit included in the model number. This is referred to as the horsepower (H.P.) or as tons, but ultimately it is referring to the BTU’s (British Thermal Units). It is very important to have the proper sized system for your home to prevent excessive use and high energy costs, as well as adequate efficiency. For example, say your model number looks something like 58MAV036000AAAA… this is a typical sequence for a Carrier unit. The 036 indicates the BTU’s, so that translates into 36,000 BTU’s.
This information as stated before will also be referred to as H.P. or tons. One ton is 12,000 BTU’s, or one H.P.. So with a 036 or a 36,000 BTU unit, this would be known as a 3 ton unit, or a 3 H.P.. Pretty simple right? Next I’ll address how to make sure the unit is the proper size for your house.
Easiest rule of thumb is just to remember 500 square feet is equivalent to one ton. So if your house has 1500 square feet, that would be how many tons? If you said 3 you’re correct. Not really rocket surgery is it? Now we can review by taking a look at the chart I have provided below.
500 square feet = 12,000 BTU’s = 1 Ton = 1 H.P.
1000 square feet = 24,000 BTU’s = 2 Tons = 2 H.P.
1500 square feet = 36,000 BTU’s = 3 Tons = 3 H.P.
2000 square feet = 48,000 BTU’s = 4 Tons = 4 H.P.
2500 square feet = 60,000 BTU’s = 5 Tons = 5 H.P. and so on…
So there you have it. Sizing and verifying the condenser or heat pump size broken down for the easiest calculation. If you have any questions, please feel free to contact us toll free at (866) 432-8551 or visit us at http://www.americanhvacparts.com/
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