Cubic feet de natural gas per second to tons of refrigeration (IT) conversion calculator shown above calculates how many tons of refrigeration (IT) are in 'X' cubic feet de natural gas per second (where 'X' is the number of cubic feet de natural gas per second to convert to tons of refrigeration (IT)). In order to convert a value from cubic feet de natural gas per second to tons of refrigeration (IT) just type the number of cubic feet de natural gas per second to be converted to TR and then click on the 'convert' button.