Patent ID: 8020391
Filing Date: 2011-09-20
Classification: F25B

Abstract:
1. A refrigeration device, comprising: a control device; a plurality of cooling elements; a supply header configured to deliver refrigerant to the cooling elements; a return header configured to return refrigerant from the cooling elements; a single pressure sensor operable to provide a signal representative of a pressure of the refrigerant in the return header to the control device; a single temperature sensor operable to provide a signal representative of a temperature of the refrigerant in the return header to the control device; the control device operable to provide an output signal to control each of the cooling elements, responsive to the signals from the single temperature sensor and the single pressure sensor; a circuit board operable to convert the output signal into a plurality of branch signals corresponding to each of the cooling elements; a superheat valve associated with each of the cooling elements and configured to operate in response to the branch signals.