Air preparation takes place outside the working chamber in a special unit, which can be placed next to, behind or above the chamber at the customer’s request. A TRIPLEX channel is installed on the ceiling of the chamber. This is an air duct consisting of three separate sections (two for supply air and one for exhaust air). The direction of air flow is regulated by an electronic valve that alternately closes and opens access to the air ducts. The special design of the nozzles in the discharge air ducts serves as an additional control of the air flow rate. The exhaust air from the chamber is returned to the climate control system via a separate duct. This ensures optimal and uniform processing of the raw material around the entire perimeter of the defroster. The design of the defroster ensures uniform air circulation inside the chamber, which is a prerequisite for high product quality. Control, management, process flow. Temperature is constantly monitored in defrosting units. Special sensors measure the temperature inside the room, the temperature of the product surface and the temperature inside the product. This data is used to adjust the process parameters. In the first step, steam injection raises the temperature and humidity in the chamber to the specified maximum values. This temperature is maintained until the set maximum product surface temperature is reached. From this point on, the main control parameter is the product surface temperature. The unit enters pause mode. During this pause, the cold from the center of the product flows outward and cools the surface of the product. This cooling is detected by the product surface sensor and transmits a signal to the microprocessor, which turns on the air preparation unit again and the cycle repeats. In this way, only the energy required for optimal defrosting is expended on the raw material. This prevents the product surface from overheating. High humidity throughout the process ensures optimal temperature exchange between the product and the air in the chamber. The defrosting process continues until the set temperature inside the product is reached. The system is then switched off and an alarm sounds to indicate the end of the process. The use of AUTOTHERM significantly reduces weight losses during the defrosting process. While raw materials lose an average of 6-8% during defrosting in natural conditions, uniform processing under the controlled conditions of the AUTOTHERM reduces losses to 1.5%. A refrigeration evaporator is built into the air preparation system, the capacity of which is calculated individually for each defroster. It also makes it possible to use the defroster as a cold storage room (0°C) for already defrosted raw materials if required. This makes the process of unloading raw materials from the defroster for further processing more planned and convenient for production needs. The parameters required for the process are stored in the microprocessor memory as a program that the computer automatically reads and uses. At the customer’s request, the raw material defrosting units can be equipped with a UV disinfection system. The UV irradiators are integrated into the air treatment unit and not only significantly reduce the development of microorganisms in the circulating air, but also prevent the development of yeast, mold and bacteria on the fins of the refrigeration evaporator. As a result, the intervals between evaporator cleanings are extended several times.