Method of controlling high stage and low stage compressors

摘要: This invention relates to a method of controlling high stage and low compressors having non-linear control characteristics. Said is characterized by comprising the steps capacity compressor during operation in accordance with change temperature load for an evaporator, automatically computing square root product pressure at which gas drawn suction into discharged from or approximation thereof means automatic unit, comparing output unit intermediate cooler interposed between compressor, subordinatively ratio that result comparison.