| 摘要 |
PROBLEM TO BE SOLVED: To reduce electric power while preventing damages to the quality of objects to be cooled in a low temperature facility.SOLUTION: When a reduction control request is made to a refrigerator 110 from a centralized management control unit 2, load states about refrigerators 110A1, 110A2 and a cooler 200A, which are all the components connected to a refrigerant circuit, are determined. If it is determined that either the refrigerators 110A1 and 110A2 or the cooler 200A cannot be reduced, a reduction operation is not performed. On the other hand, when the refrigerators 110A1, 110A2 and the cooler 200A connected to the refrigerant circuit are all determined to be capable of reduction control, the reduction control operation is executed in the refrigerators 110A1, 110A2 and the cooler 200A. |
