PROTECTION AND DIAGNOSTIC MODULE FOR A REFRIGERATION SYSTEM
    41.
    发明公开
    PROTECTION AND DIAGNOSTIC MODULE FOR A REFRIGERATION SYSTEM 审中-公开
    保护和诊断模块用于冷却系统

    公开(公告)号:EP2041501A1

    公开(公告)日:2009-04-01

    申请号:EP07796879.0

    申请日:2007-07-17

    Inventor: PHAM, Hung M.

    Abstract: A system includes a compressor and a compressor motor functioning in a refrigeration circuit. A sensor produces a signal indicative of one of current and power drawn by the motor and a liquid-line temperature sensor provides a signal indicative of a temperature of liquid circulating within the refrigeration circuit. Processing circuitry processes the current or power signal to determine a condenser temperature of the refrigeration circuit and a subcooling value of the refrigeration circuit from the condenser temperature and the liquid-line temperature signal.

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