Patent ID: 6397612
Filing Date: 2002-06-04
Classification: F24F,F25B,F25D,Y02B

Abstract:
For use with a heat exchange system having a cooled chamber, a compressor, a condenser, an evaporator, an evaporator fan, and refrigerant within refrigerant carrying lines, an energy saving apparatus comprising:a) evaporator fan control means for monitoring cooling/non-cooling status of the heat exchange system and setting an energy saving operational speed for the evaporator fan based on said cooling/non-cooling status and b) current sensor means coupled to said evaporator fan control means for detecting said cooling/non-cooling status of the heat exchange system, whereby if the system is detected as cooling, said evaporator fan control means directs the evaporator fan to operate at a high speed and if said cooling/non-cooling status is detected as non-cooling, said evaporator fan control means decreases the operational speed of the evaporator fan to a low speed, thereby decreasing evaporator fan produced heat, resulting in an overall decreased energy requirement for the heat exchange system.