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    • 8. 发明专利
    • Air conditioning apparatus
    • JP5137933B2
    • 2013-02-06
    • JP2009266297
    • 2009-11-24
    • 三菱電機株式会社
    • 章吾 玉木航祐 田中史武 畝崎広有 柴雄人 柴尾
    • F25B13/00F24F11/02F25B1/00
    • F25B2313/0231
    • PROBLEM TO BE SOLVED: To provide a multi-system air conditioning device capable of improving operation efficiency and improving comfort by preventing defective cooling and defective heating in utilization units. SOLUTION: This air conditioning device includes the plurality of utilization units 303, a heat source unit 301, and a relay unit 302, and can executes a cooling operation and a heating operation. In a case when the cooling operation and the heating operation are mixed in operating the plurality of utilization units 303, an operation frequency of the compressor is controlled on the basis of the utilization unit of the maximum air conditioning load relational amount of the operation (main operation) of a larger total value of a total valve of a cooling load relational amount of the utilization unit 303 of the cooling operation and a total value of heating load relational amount of the utilization unit 303 of the heating operation. Further an air volume of a heat source-side air blower 4 is controlled on the basis of the utilization unit having the maximum air conditioning load relational amount of the operation (sub-operation) of the smaller total value. COPYRIGHT: (C)2011,JPO&INPIT