Refrigeration – Automatic control – Diverse – cascade or compound refrigeration-producing system
Reexamination Certificate
2007-10-30
2007-10-30
Norman, Marc (Department: 3744)
Refrigeration
Automatic control
Diverse, cascade or compound refrigeration-producing system
C062S183000, C062S196200, C062S228300, C062S228500, C062S510000
Reexamination Certificate
active
11079519
ABSTRACT:
A system includes a plurality of distributed refrigeration units respectively coupled to discrete refrigeration circuits. Each refrigeration unit may include a variable compressor, a fixed compressor, a condensing unit, and a controller. The controller compares an operating condition of the refrigeration unit to a refrigeration circuit set point to select a compressor staging capable of achieving the refrigeration circuit set point.
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Emerson Climate Technologies, Inc.
Harness & Dickey & Pierce P.L.C.
Norman Marc
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