The unit of refrigeration is called the ton of refrigeration (TR) which is defined as the quantity of heat to be removed to produce one-ton of ice at 0 degree Celcius.
In the SI units, 1TR is equivalent to 210 KJ/min or 3.5 KW. Air conditioners are also specified by the same unit TR.
1TR =210 KJ/min3.5 KW.
