| 摘要 |
PROBLEM TO BE SOLVED: To provide a ventilation device capable of reducing loss due to unevenness in ventilation and efficiently executing ventilation by making the effect of increase/decrease of a ventilation air volume constant while keeping the total ventilation air volume of a building, even when a plurality of ventilation devices different in necessary ventilation air volumes are disposed in the same building, and a ventilation air volume of each room is changed.SOLUTION: A plurality of ventilation devices installed in the same building, share information on self constant ventilation air volume and fixed air volume set by a fixed air volume setting section 14 by bidirectional communication through an information transmitting section 19 and an information receiving section 20, a control section 18 includes total ventilation air volume determining means 24 for determining the total ventilation air volume necessary in the building on the basis of the acquired constant ventilation air volume of each ventilation device, and air volume determining means 25 for determining an air volume according to a ratio of the constant ventilation air volume of each ventilation device while keeping the total ventilation air volume, in increasing or decreasing the air volume of each ventilation device. |
