| 摘要 |
PROBLEM TO BE SOLVED: To provide an ultralow-noise air conditioner which is of low noise, suppressing its vibration noise, and besides in which an air current flows smoothly. SOLUTION: A U-shaped return air silencing ventilation flue 4 which is reversed on the bottom side of a casing, is made in vertical direction in one region of the casing, and a return air fan 3 is arranged in the other region of the casing, and an air supply silencing ventilation flue 13 in the shape of a sideway U which is reversed on the other side of the casing is made, in longitudinal direction of the casing, in the region above the casing, and an air supply fan 11 is arranged in the region under the casing, and the return air silencing ventilation flue and the return air fan are provided in the position where they do not interfere with the air supply silencing ventilation flue, in the longitudinal direction and in vertical direction, and the air supply silencing ventilation flue and the air supply fan are provided in the position where they do not interfere with the return air silencing ventilation flue, in the longitudinal direction and in vertical direction of the casing. |
