Control unit for refrigerating apparatus.

摘要

A control unit for refrigerating apparatus comprises means for selecting the temperature and humidity within the cooling and/or freezing compartment(s), means for sensing the temperature of said compartment(s) and/or of the evaporator and at least one compressor. The control unit further comprises actuator means for energizing and deenergizing said compressor in response to the temperature selected by means of said selector means and to the temperature sensed by said sensing means, and second actuator means for initiating and terminating the defrosting of said evaporator in response to the humidity selected by means of said selector means and prevailing after a predetermined number of operating cycles of said compressor. The invention envisages various embodiments of the control unit designed to optimize the conditions for the preservation of foods in the refrigerating apparatus as well as the efficiency and energy consumption of the refrigerating apparatus.