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Dimplex Thermal Solutions

A properly sized chiller will properly cool process equipment. Here is an equation to calculate the load requirements:

BTU = Constant x GPM x Temperature Differential

500   constant (weight of water)
x 10   GPM (gallons per minute)
x 12   degrees Temperature Differential (or rise)
_______   _________________________________
60,000   Required BTUs per hour


In the above example, the process equipment, being cooled 12 degrees by pure water at 10 GPM, would require a 5 ton chiller since 12,000 BTUs = 1 ton of cooling.