<P> A ton of refrigeration (TR), also called a refrigeration ton (RT), is a unit of power used in some countries (especially in North America) to describe the heat - extraction capacity of refrigeration and air conditioning equipment . It is defined as the rate of heat transfer that results in the melting of 1 short ton (2,000 lb; 907 kg) of pure ice at 0 ° C (32 ° F) in 24 hours . </P> <P> A refrigeration ton is approximately equivalent to 12,000 BTU / h or 3.5 kW . Air - conditioning and refrigeration equipment capacity in the U.S. is often specified in "tons" (of refrigeration). Many manufacturers also specify capacity in BTU / h, especially when specifying the performance of smaller equipment . </P>

What do you mean by 1 ton of refrigeration
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