Matsushita Electric Industrial Co., Ltd.

Riko Tachigori

Yoshinori Kobayashi

Akira Fujitaka

Yukio Watanabe

Kanji Haneda

In an air conditioner using a flammable refrigerant of the present invention, an inner diameter of a liquid-side connecting pipe is reduced to less than 42.5% of that of a gas-side connecting pipe. By reducing the inner diameter of the pipe in which a liquid refrigerant of the air conditioner is reduced, it is possible to reduce the amount of refrigerant to be charged into the system without decreasing the capacity and the efficiency.

Air conditioner using inflammable refrigerant

Air conditioner using flammable refrigerant

In a refrigerant leakage warning device for an apparatus having a refrigeration cycle using a flammable refrigerant as a refrigerant, when leakage of the refrigerant occurs, measures how to cope after the leakage of refrigerant occurs are indicated on an indoor unit. Therefore, the user can see the indication of the leakage and take the measures to cope with it, and it is possible to hold the damage at a minimum, and to enhance the safety.

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Shiga, Japan

Riko Tachigori