The NextGen Environmental Chambers NG-EC has an automatic defrosting function that is designed to remove ice build-up on the evaporator coils. This is necessary to ensure that the unit operates efficiently and maintains consistent temperature control. The defrost cycle is controlled by a microprocessor-based controller that monitors the temperature of the evaporator coils and initiates defrosting when necessary.

The defrosting function is initiated when the controller detects that the evaporator coils have reached a pre-set temperature. When this occurs, the refrigeration cycle is temporarily suspended, and the unit’s electric heaters are turned on to melt the ice on the coils. Once the ice has melted, the controller will then turn off the electric heaters and resume the refrigeration cycle. The frequency of defrost cycles is determined by the amount of frost accumulation on the coils, which can be influenced by factors such as humidity levels and the number of door openings.

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