| 摘要 |
PROBLEM TO BE SOLVED: To equalize operation times of compressors in a refrigeration machine having the plurality of compressors arranged in parallel with each other. SOLUTION: This refrigerating machine 1 comprises the plurality of compressors 2A-2C arranged in parallel with each other, and a controller 8 for controlling the operation of each of the compressors 2A-2C. The controller 8 has an automatic switching mode for determining the number of compressors 2A-2C to be operated in accordance with load, operating each of the compressors 2A-2C on the basis of specific priority, and changing the priority of the compressor of longest operation time and the compressor of shortest operation by a specific period. COPYRIGHT: (C)2006,JPO&NCIPI
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