Patent 7342756 was granted and assigned to Carrier Corporation on March, 2008 by the United States Patent and Trademark Office.
A method for detecting compressor or system degradation or malfunction in a multiple circuit compressor system includes the steps of providing a multiple circuit compressor system including at least a first circuit and a second circuit; and comparing a first value corresponding to an operating parameter of the first circuit with a second value corresponding to an operating parameter of the second circuit.