| 摘要 |
PURPOSE:To reduce the numerical level of noises by a method wherein the flow of exhaust to be supplied to a heat exchanger unit is regulated through a chamber part before entering an opening in a metal behind a motor. CONSTITUTION:A fan motor unit 10 is provided to supply air flow to an air supply passage 7 and an air exhaust passage 8 and an opening 12 is formed in a metal plate 11 behind a motor of the fan motor unit 10. A chamber part 14 is provided which serves as a room side suction opening 3 for forming an air exhaust flow between a side plate 13 of the heat exchanger unit 1 and the metal plate 11. By this arrangement, the room side suction opening 3 can take in the exhaust air regulated through the chamber part 14 from the opening 12 of the metal plate 11. In this way the numerical level of noises can be reduced. |
