公开(公告)号：US20220154966A1

公开(公告)日：2022-05-19

申请号：US17437834

申请日：2019-04-11

申请人： Mitsubishi Electric Corporation

发明人： Kazuya WATANABE ,  Shohei ISHIMURA ,  Koji FUKUI ,  Kojiro KATAYAMA ,  Kosuke TANAKA ,  Kazuki OKADA ,  Kazushige BABA

IPC分类号： F24F11/84 ,  F24F1/0068

摘要： An air-conditioning apparatus includes a controller configured to operate in a heating normal operation mode and a heating-defrosting operation mode. In a case of switching from the heating normal operation mode to the heating-defrosting operation mode, the controller makes a selection from an initial control mode 1, in which control is performed such that an initial frequency of the compressor is set to a predetermined maximum frequency and an initial opening degree of the flow control device is set to an opening degree lower than a predetermined maximum opening degree, and an initial control mode 2, in which control is performed such that the initial opening degree of the flow control device is set to the predetermined maximum opening degree and the initial frequency of the compressor is set to a frequency lower than the predetermined maximum frequency, to execute the heating-defrosting operation mode.