| 摘要 |
PROBLEM TO BE SOLVED: To suppress the unnecessary operation of a compressor when supplementing the shortage of a refrigerating capacity by the auxiliary drive of the compressor. SOLUTION: This storage has a function capable of operating a constant-velocity compressor 32B of the second refrigerating circuit 31B provided independently together, when the refrigerating capacity is insufficient only by the operation of an inverter compressor 32A of the first refrigerating circuit 31A. In this case, the constant-velocity compressor 32B is started, only when an acceleration command is issued continuously four times to the inverter compressor 32A after the inverter compressor 32A reaches the highest rotational frequency. The unnecessary drive of the constant-velocity compressor 32B can be avoided when an instantaneous temperature change in the storage or the like occurs. COPYRIGHT: (C)2009,JPO&INPIT
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