To use a refrigerant which is zero in Ozone Depletion Parameter(ODP), small in Global Warming Parameter(GWP), but flammable and/or toxious.
In an indoor unit of a refrigeration cycle device of fan-like shape comprising a tight side surface part 15, a left side surface part 16, a front side surface part 17, an upper surface part 18, and a lower surface part 19, the indoor unit whose air outlet 14 is provided close to the front side surface part 17 is fixed and installed so that the upper surface part is brought into contact with a ceiling surface 31 within a room which is an object space to be controlled for air-conditioning, the right side surface part 15 is brought into contact with a wall surface 32, and the left side surface part 16 is brought into contact with a wall surface 33. A refrigerant which is larger in specific gravity than air, and flammable and/or toxious.
FUNAKURA SHOZO
MATSUO MITSUHARU
YOSHIDA YUJI
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