发明名称 MULTI-TYPE AIR CONDITIONER
摘要 PROBLEM TO BE SOLVED: To provide a multi-type air conditioner capable of sensing distribution failure of a refrigerant and preventing distribution failure by lowering target cooling low pressure.SOLUTION: The multi-type air conditioner 1 includes: a plurality of indoor units 11A, 11B each having an indoor heat exchanger 47 and connected to an outdoor unit 3 in parallel; and an outdoor control part 65 constituted so that a compressor 13 is operated targeted for the cooling target low pressure and control is performed considering a cooling superheat degree in the indoor units 11A, 11B during cooling operation. The indoor heat exchanger 47 includes: a liquid side temperature sensor 61 detecting a refrigerant temperature in a liquid side portion of a first path; a bend part temperature sensor 63 detecting a refrigerant temperature in an intermediate portion of a second path; and a gas side temperature sensor 59 detecting a refrigerant temperature on the gas side. The outdoor control part 65 includes a target pressure change part 77 making a change so that the cooling target low pressure is lowered when the detection temperature by the liquid side temperature sensor 61 or the bend part temperature sensor 63 exceeds the detection temperature by the gas side temperature sensor 59 during the cooling operation.
申请公布号 JP2011214795(A) 申请公布日期 2011.10.27
申请号 JP20100085022 申请日期 2010.04.01
申请人 MITSUBISHI HEAVY IND LTD 发明人 NAKAMOTO MASAHIKO;MITOMA KEISUKE
分类号 F24F11/02 主分类号 F24F11/02
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