| 摘要 |
PROBLEM TO BE SOLVED: To provide a refrigeration system capable of effectively eliminating the inefficiency caused by the lowering of a low pressure-side pressure of a refrigerant circuit. SOLUTION: In this refrigeration system 1 provided with the refrigerant circuit comprising a plurality of compressors 37 connected in parallel, a condenser 38, an expansion valve 44 and an evaporator 43, the capacity of the compressor is decreased on the basis of the low pressure-side pressure of the refrigerant circuit in a case when the low pressure-side pressure is lowered to the lower limit value of an upper limit value and the lower limit value determined with respect to the specific set value, the capacity of the compressor is increased in a case when the pressure is raised to the upper limit value, and the set value is changed on the basis of the deviation between an average value of the low pressure-side pressure per a specific time and the set value. COPYRIGHT: (C)2005,JPO&NCIPI
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