Refrigeration – Automatic control – Of external fluid or means
Reexamination Certificate
2007-07-24
2007-07-24
Norman, Marc (Department: 3744)
Refrigeration
Automatic control
Of external fluid or means
C062S183000, C062S230000
Reexamination Certificate
active
11260878
ABSTRACT:
A controller comprises a first input that receives a signal indicating an energy consumption value of a compressor, a second input that receives a signal indicating an energy consumption value of a variable speed condenser fan, and an output that provides a control signal to the variable speed condenser fan. The controller also comprises a memory that stores a condenser set point, and a processor in communication with the input, output and memory and that modulates the condenser set-point to minimize energy consumption and controls the variable speed condenser fan based on the condenser set-point.
REFERENCES:
patent: 5040377 (1991-08-01), Braun et al.
patent: 6257007 (2001-07-01), Hartman
patent: 6637229 (2003-10-01), Forrest et al.
Brown, III Frank C.
Gurkan Ozgur Y.
Mathews Thomas J.
Singh Abtar
Emerson Retail Services Inc.
Norman Marc
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