| 摘要 |
<p>An indoor ventilating system with a smoke removing function in the case of a fire is provided to prevent diffusion of a fire by the supply of atmospheric air and discharge harmful gas to the outside in a short time. A ventilating unit(1) includes a heat exchanger(11) circulating indoor and outdoor air and carrying out heat exchanger therebetween, an air supply duct(12) introducing the outdoor air into the inside, and an exhaust duct(13) for discharging polluted indoor air to the outside. A controller(2) is connected to the ventilating unit electrically for setting operation steps thereof. A sensing unit(3) senses the generation of a fire and gas leakage. A control panel(4) automatically controls the ventilating unit via the controller according to signals output from the sensing unit. A relay(5) automatically informs a user of accidents such as a fire or gas explosion.</p> |
