A compressor should never be stopped ().
A、without first cooling it
B、without first heating it
C、without first unloading it
D、without first loading it
A、without first cooling it
B、without first heating it
C、without first unloading it
D、without first loading it
A、run continuously B、not start C、have high discharge pressure D、short cycle on the high pressure switch
A、High pressure compressors are more efficient than low pressure compressors B、Mechanical efficiency divided by compressor efficiency will equal the overall efficiency of the compressor unit C、Two stage compressors are generally more efficient than single stage compressors D、The volumetric efficiency is decreased in multistage compressors
A、Chilled water system supply temperature B、Chilled water system return temperature C、Compressor discharge temperature D、Compressor suction pressure