Tons of air conditioning to Celsius heat units (IT) per hour conversion calculator shown above calculates how many Celsius heat units (IT) per hour are in 'X' tons of air conditioning (where 'X' is the number of tons of air conditioning to convert to Celsius heat units (IT) per hour). In order to convert a value from tons of air conditioning to Celsius heat units (IT) per hour simply type the number of tons of air conditioning to be converted to CHU/h and then click on the 'convert' button.