| 摘要 |
PROBLEM TO BE SOLVED: To provide a cooling system capable of saving energy of an entire system by properly setting target suction pressures of a compressor in a business hour zone and a non-business hour zone, even when the system is installed in a shop such as a supermarket of which an opening time and a closing time are set. SOLUTION: The target suction pressure PS of the compressor 5a is determined on the basis of an in-store enthalpy E determined on the basis of an in-store temperature TI and an in-store humidity UI, and a lowermost set temperature inside TS<SB>L</SB>among four showcases 1-4. Then a processing for correcting the target suction pressure PS previously determined, to a higher value is performed, when it is determined that a night cover NC is placed on the showcases 1-4. COPYRIGHT: (C)2007,JPO&INPIT
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