| 摘要 |
PURPOSE:To make it possible to carry out ventilation without consuming excessive energy in space heating by mixing to heat a part of collected air at respective indoor parts with external air heat-exchanged with another part of indoor air collected and exhausted to send mixed and heated air to respective parts of a building. CONSTITUTION:The system comprises an exhaust part 10 for exhausting out of the outdoor side exhaust air which is a part of return air from respective indoor parts, an external air introducing part 30 for taking in fresh external air from the outdoor side, a heat exchange part 20 disposed between the above described parts for carrying out heat exchange of exhaust air and external air, and an indoor blasting part 40 for mixing another part of return air from respective indoor parts with external air 2 after the heat exchange and blasting mixed air to respective indoor parts, and a heat source part 50 for heating air passing through the indoor blasting part 40. By this arrangement, forcible ventilation is possible without opening the window, and further heat exchange between exhaust air and introduced external air can be carried out. Therefore, it is possible to carry out ventilation without imposing a burden on a space heating device nor consuming a great energy on space heating. |
