| 摘要 |
PURPOSE:To perform a heat exchanging and aeration at a indoor side, enable a ventilation at a kitchen, perform a thermal recovering in winter and perform a discharging heat in summer by a method wherein two ducts having ventilation fans are extended out of a house at an intermediate part of one of heat exchangers, the other heat exchanger 1 has two ducts extending into a room, one of the ducts is further branched and connected to the ventilation fan of a hood of a kitchen. CONSTITUTION:In case that a flow of kitchen ventilation flow is applied to a normal ventilation flow in winter, a shutter of an air shutter 14 is released to open to cause a ventilation fan in a hood 17 to be rotated and stained or polluted air is passed through ducts 11 and 9, heat exchanger 1, duct 7, heat exchanger 1, ventilation fan 2 and duct 4 and discharged to an outdoor side as indicated by a black arrow dot. At the air supplying side of normal ventilation, the surrounding atmosphere is passed through a duct 5, ventilation fan 3, heat exchanger 1, duct 6, heat exchanger 1 and duct 8 and then flowed into a room as indicated by a white arrow. In summer. the shutter of the air shutter 13 is opened, the kitchen ventilation fan in a hood 17 is rotated and the air is passed through the duct 11, duct 12 and shutter 13 and then discharged out to outdoor area as indicated by a black arrow. |
