| 摘要 |
PROBLEM TO BE SOLVED: To heat a freezing storage showcase without separately mounting a heating means. SOLUTION: A heat source system is provided with a refrigerant circuit 10 with which a first utilization system having a HC heat exchanger 31 and a second utilization system having a freezing heat exchanger 41 are connected in parallel. The second utilization system comprises a booster compressor 61 for compressing a refrigerant in two stages in a state that the compressors 21a, 21b of the heat source system are positioned at a higher side. A first operation for cooling each storage by the HC heat exchanger 31 and the freezing heat exchanger 41, and a second operation for cooling the storage by the freezing heat exchanger 41, while heating the storage by supplying the refrigerant discharged from the booster compressor 61 to the HC heat exchanger 31, are selectively performed. COPYRIGHT: (C)2006,JPO&NCIPI
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