Defrost operations and apparatus for a transport refrigeration system
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United States of America Patent
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Sep 11, 2018
Grant Date -
Dec 20, 2012
app pub date -
Mar 3, 2011
filing date -
Mar 8, 2010
priority date (Note) -
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Abstract
A method for operating a defrost mode of a transport refrigerant vapor compression system includes initiating a defrost operation for the transport refrigerant vapor compression system by energizing heaters operatively coupled to a heat absorption heat exchanger operable to defrost the heat absorption heat exchanger. During the defrost operation, the method includes comparing the heat absorption heat exchanger pressure to the first predetermined limit; in response to the heat absorption heat exchanger pressure being less than the first predetermined limit, performing at least one operation to determine if the defrost operation should be exited; and in response to the heat absorption heat exchanger pressure being greater than the first predetermined limit, exiting the defrost operation.
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