Malfunction detection for fan or pump in refrigerant system
作者： Michael F. Taras , Alexander Lifson
DOI:
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摘要: A diagnostic method for testing a fan or pump assembly in refrigerant system includes steps of operating controller to periodically shut down, reduce speed short period time, while continuing operate the system. Changes an condition such as pressure, temperature, electric current are monitored. If expected changes do not occur, determination can be made that is malfunctioning.
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