Invention Grant
- Patent Title: Air-conditioning apparatus
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Application No.: US14351428Application Date: 2012-01-05
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Publication No.: US09719691B2Publication Date: 2017-08-01
- Inventor: Naofumi Takenaka , Shinichi Wakamoto , Osamu Morimoto , Daisuke Shimamoto
- Applicant: Naofumi Takenaka , Shinichi Wakamoto , Osamu Morimoto , Daisuke Shimamoto
- Applicant Address: JP Tokyo
- Assignee: Mitsubishi Electric Corporation
- Current Assignee: Mitsubishi Electric Corporation
- Current Assignee Address: JP Tokyo
- Agency: Oblon, McClelland, Maier & Neustadt, L.L.P.
- International Application: PCT/JP2012/000041 WO 20120105
- International Announcement: WO2013/102953 WO 20130711
- Main IPC: F24F11/02
- IPC: F24F11/02 ; F24F3/06 ; F24F11/00 ; F25B13/00 ; F25B25/00

Abstract:
When indoor units are performing a cooling operation, an air-conditioning apparatus controls four flow passage switching valves, for example a first solenoid valve, a second solenoid valve, a third solenoid valve, and a fourth solenoid valve, so that a number of intermediate heat exchangers operating as evaporators is greater than in a cooling main operation. During the cooling main operation, a target value for suction pressure or evaporating temperature at a compressor is set equal to or lower than that in a case in which the indoor units are performing the cooling operation, and a frequency of the compressor and a capacity of a heat-source-side heat exchanger are controlled.
Public/Granted literature
- US20140260387A1 AIR-CONDITIONING APPARATUS Public/Granted day:2014-09-18
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