System and method for monitoring overheat of a compressor
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United States of America Patent
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Sep 24, 2013
Grant Date -
Apr 9, 2009
app pub date -
Oct 7, 2008
filing date -
Oct 8, 2007
priority date (Note) -
In Force
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Abstract
A system and method for monitoring an overheat condition of a compressor is provided. A compressor connected to an evaporator. A suction sensor outputs a suction signal corresponding to a temperature of refrigerant entering the compressor. A control module is connected to the evaporator sensor and the suction sensor and determines an evaporator temperature, calculates a suction superheat temperature based on the evaporator temperature and the suction signal, and monitors an overheat condition of the compressor by comparing the suction superheat with a predetermined suction superheat threshold.
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