| 摘要 |
A refrigerating device comprising three compressors (2A, 2B, 2C) and two systems of utilization-side heat exchangers (41), (45, 51) is arranged so th at the first compressor (2A) is used exclusively for the utilization-side heat exchangers (45, 51) of the first-system-side circuit while the third compressor (2C) is used exclusively for the utilization-side heat exchanger (41) of the second-system-side circuit and so that second compressor (2B) is used by switching between the utilization-side heat exchangers (45, 51) of t he first-system-side circuit and the utilization-side heat exchanger (41) of th e second-system-side circuit, whereby the arrangement of the suction-side pipi ng is simplified and so is the operation control.
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