Patent ID: 7047753
Filing Date: 2006-05-23
Classification: F25B,Y02B

Abstract:
1. A method of controlling a refrigeration system comprising one or more evaporators, a suction header in fluid communication with the one or more evaporators, a first compressor comprising a first low side suction input in fluid communication with the suction header and a first high side discharge outlet, a second compressor comprising a second low side suction input in fluid communication with the suction header and a second high side discharge outlet, a condenser in fluid communication with the first and second high side discharge outlets and the one or more evaporators, one or more controllers operable to control the first and second compressors, a first sensor coupled to the first compressor, the first sensor being operable to acquire a parameter for the first compressor, the parameter being selected from the group consisting of discharge pressure, discharge temperature, suction pressure, and suction temperature, a second sensor coupled to the second compressor, the second sensor being operable to acquire the parameter for the second compressor, the method comprising the acts of: providing the refrigeration system; acquiring a value for the parameter with each sensor; and determining if any of the sensors is faulty including comparing the acquired values.