F - Mech Eng,Light,Heat,Weapons – 25 – B
Patent
F - Mech Eng,Light,Heat,Weapons
25
B
F25B 49/02 (2006.01) F25B 31/00 (2006.01) G05D 23/20 (2006.01)
Patent
CA 2124178
A method of controlling a plurality of commonly piped compressors for a refrigeration system having a plurality of refrigeration cases including the steps of sensing a suction pressure of the refrigeration system, determining whether the sensed suction pressure is within a predetermined pressure range, and turning compressors ON or OFF in stages until the suction pressure is within the predetermined pressure range. The method also includes the steps of sensing a case temperature for each of the refrigeration cases if the sensed suction pressure is within the predetermined pressure range and determining whether the sensed case temperature is within a predetermined temperature range. The method further includes the steps of turning selectively the load of the refrigeration cases ON and OFF until the case temperature is within the predetermined temperature range if the sensed case temperature is not within the predetermined temperature range and ending the method if the sensed case temperature is within the predetermined temperature range.
Anglin Mark E.
Henderson James P.
Ott James H.
Novar Electronics Corporation
Ridout & Maybee Llp
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