| 摘要 |
PURPOSE: An indoor air ventilating unit is provided to prevent the inflow of polluted external air into an indoor space by individually installing electric air exhaust dampers and electric air supply dampers on an indoor air discharging side and an outdoor air intake side. CONSTITUTION: An indoor air ventilating unit comprises a main body(110), a heat exchanger(120), a filter unit(200), an electric air supply damper(132), and an electric air exhaust damper(134). The main body comprises an outside air influx unit(114a), an outside air supply unit(114b), a room air intake unit(116a), and an indoor air exhausting unit(116b). The heat exchanger is arranged inside the main body and exchanges the outside air for indoor air. The filter unit purifies the outside air flowing in the outside air influx unit. The electric air supply damper is installed in the outside air influx unit and prevents the inflow of outside air, when the ventilation unit does not start operate. |
