With the increase of recent environmental concerns, energy saving is one of the most important issues in air conditioning and refrigeration industry. Likewise, in order to improve the annual performance factor of heat-pump air conditioners, capacity modulation by means of motor rotational speed control and multiple fixed speed compressor system are becoming widespread. To meet these demands, we have developed new scroll compressor series for packaged air conditioners with revolutionary high efficiency.The scroll compressor has advanced asymmetric scroll wrap, optimized axial compliant mechanism and sophisticated oil feeding system. The newly developed ultra-high efficiency magnetic synchronous (MS) motor is adopted instead of conventional induction motor. As a result, the motor's energy loss has been reduced by 40%, thus realizing a noticeable improvement in compressor efficiency. This paper outlines the series of scroll compressors that has number of useful features in application.
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