Lusec to tons of refrigeration (IT) conversion calculator above calculates how many tons of refrigeration (IT) are in 'X' lusec (where 'X' is the number of lusec to convert to tons of refrigeration (IT)). In order to convert a value from lusec to tons of refrigeration (IT) (from lusec to TR) type the number of lusec to be converted to TR and then click on the 'convert' button.