Title:
空気調和機
Document Type and Number:
Japanese Patent JP6884272
Kind Code:
B2
Abstract:
An air-conditioning apparatus includes a refrigerant circuit that is formed of an outdoor unit and an indoor unit connected through indoor/outdoor connection pipes. The outdoor unit includes a compressor, an outdoor heat exchanger, and an expansion valve. The indoor unit includes an indoor heat exchanger. Combustible refrigerant is used as refrigerant flowing through the refrigerant circuit. The outdoor unit includes a refrigerant filling-dedicated connection port to fill the refrigerant and an evacuation-dedicated connection port to evacuate the refrigerant inside the refrigerant circuit. The refrigerant filling-dedicated connection port is provided inside a machine chamber that accommodates the compressor and the expansion valve, and the evacuation-dedicated connection port is provided outside the machine chamber.
Inventors:
Hiroshi Makino
Application Number:
JP2020513451A
Publication Date:
June 09, 2021
Filing Date:
April 11, 2019
Export Citation:
Assignee:
Mitsubishi Electric Corporation
International Classes:
F25B45/00; F25B13/00
Domestic Patent References:
| JP2012021770A | ||||
| JP2016121850A |
Foreign References:
| WO2009018624A1 | ||||
| GB2504280A | ||||
| US9448140 | ||||
| US5813240 | ||||
| CN206361846U |
Attorney, Agent or Firm:
Patent Business Corporation Kisa Patent Trademark Office