System and method of controlling refrigerator and freezer units to reduce consumed energy

A method for controlling a refrigeration system, wherein the refrigeration system includes a cooled compartment and at least one heat source that is selectively activatable to provide heat, the method comprising:

• detecting a temperature and a relative humidity of ambient air that surrounds the cooled compartment by a sensor, wherein the sensor is in communication with a controller, the controller including a memory;
• calculating, by the controller, a dew point temperature based on the temperature and the relative humidity;
• retrieving, from the memory, a first region of operation and a second region of operation, wherein the first region of operation is defined by a first range of dew point temperatures and a first range of relative humidities and the second region of operation is defined by a second range of dew point temperatures and a second range of relative humidities;
• matching the dew point temperature and the relative humidity to one of the first region of operation or the second region of operation to define an active region of operation for the refrigeration system;
• and
• the controller selecting a control logic to be used for controlling the at least one heat source based on the active region of operation, wherein the controller is connected for controlling the at least one heat source.