| 摘要 |
PURPOSE:To provide an air conditioning ventilation fan having a function for generating a large amount of air for discharging a smoke of cigarette rapidly by a method wherein a center of an indoor normal heat exchanging ventilation suction port is placed below an indoor heat exchanging ventilation outlet port and located below a center of an indoor heat exchanging ventilation suction port. CONSTITUTION:In the event that a cigarette is ignited and a large amount of smoke is generated, a normal ventilation shutter 20 is opened, a normal ventilation air blower 18 is operated and concurrently a heat exchanging and ventilation are also carried out. At this time, an indoor normal ventilation suction port 14 and an indoor heat exchanging and ventilation suction port 2 are located below an indoor heat exchanging and ventilation discharging port 11, and a center of the indoor normal ventilation and suction port 14 is positioned below the center of the indoor heat exchanging and ventilation suction port 2, so that almost of all ascending cigarette smoke C1 C2 are initially discharged from within the indoor normal ventilation and suction port 14 through a normal ventilation aeration passage Z Z' and the remaining smoke C1 C3 is discharged from the indoor heat exchanging and suction port 2 through the discharging aeration passage X X'. |
