Damper apparatus for refrigerated vending machines with a defrost cycle

摘要

An apparatus and improved method for defrosting of the refrigeration unit of a refrigerated vending machine are disclosed. A damper controls flow of heated defrosting air in the refrigeration unit during a defrosting cycle to prevent the heated air from exiting out of the refrigerated air duct leading to the refrigerated compartment of the vending machine, thereby maintaining the desired ambient air temperature within the refrigerated compartment.