Title:
空気調和装置の冷媒量設定方法
Document Type and Number:
Japanese Patent JP6779355
Kind Code:
B2
Abstract:
Refrigerant is a flammable refrigerant with a density greater than a density of air under atmospheric pressure. An indoor unit includes an air-sending fan, an air inlet through which air of an indoor space is sucked in, and an air outlet located above the air inlet and through which the air sucked in through the air inlet is blown out to the indoor space. The air outlet is provided on a front face or a side face of a housing of the indoor unit. A control unit activates the air-sending fan when leakage of the refrigerant is detected. When M [kg] represents an amount of charge of the refrigerant in a refrigeration cycle, LFL [kg/m 3 ] represents a lower flammable limit of the refrigerant, A [m 2 ] represents a floor area of the indoor space, and Ho [m] represents a height of the air outlet above a floor surface of the indoor space, the amount of charge M, the lower flammable limit LFL, the floor area A, and the height Ho satisfy a relationship of M < LFL × A × Ho.
Inventors:
Yasuhiro Suzuki
Takao Komai
Akira Maeda
Kawashima Mitsuru
Takao Komai
Akira Maeda
Kawashima Mitsuru
Application Number:
JP2019201338A
Publication Date:
November 04, 2020
Filing Date:
November 06, 2019
Export Citation:
Assignee:
Mitsubishi Electric Corporation
International Classes:
F24F11/49; F24F11/36; F25B1/00; F25B49/02
Domestic Patent References:
| JP201435171A | ||||
| JP2014142141A | ||||
| JP2004116885A | ||||
| JP11173684A | ||||
| JP201025519A | ||||
| JP10103742A | ||||
| JP2000234797A |
Foreign References:
| WO2012073294A1 | ||||
| WO2009150761A1 |
Attorney, Agent or Firm:
Patent Business Corporation Kisa Patent Trademark Office