Temperature Compensated Volume is also called TC Volume.  Due to seasonal temperature changes, the product in a tank will expand and contract.  For example, colder temperatures cause product to contract, while increasingly warmer temperatures cause incremental increases in product expansion.  Unless a system was otherwise programmed for a different temperature value, Temperature Compensated Volume is set at 60 degrees Fahrenheit.   Also, if the TCV was set to “Disable” during  setup of the system, this will also disable the printing of the TCV value on the system report.