Distributed intelligence control for commercial refrigeration
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United States of America Patent
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Sep 18, 2007
Grant Date -
May 20, 2004
app pub date -
Nov 17, 2003
filing date -
Mar 14, 2000
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A commercial refrigeration system including a compressor, a condenser, a valve, and an evaporator coil, all of which are in fluid communication. The refrigeration system further including a fixture adapted to be cooled by the evaporator coil, a system controller operable to control operation of the refrigeration system, and a subsystem controller in communication with the system controller. The subsystem controller being operable to monitor at least one parameter of a subsystem having at least one of the compressor, condenser, valve, and fixture, and being further operable to execute a command from the system controller to affect the operation of the subsystem.
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