Refrigeration system condenser fan control
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United States of America Patent
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Jun 30, 2020
Grant Date -
Mar 15, 2018
app pub date -
Feb 26, 2016
filing date -
Feb 27, 2015
priority date (Note) -
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Abstract
A method of controlling a refrigeration system having a compressor, a condenser, an evaporator, and a variable speed condenser fan is provided. The method includes determining if a change in an ambient temperature or a compressor suction pressure is greater than a predetermined threshold, determining a near-optimal condensing pressure/temperature if the change in the ambient temperature or the compressor suction pressure is above the predetermined threshold, setting a condensing pressure setpoint based on the determined near-optimal condensing pressure/temperature, and setting a speed of the variable speed condenser fan based on the condensing pressure setpoint.
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