VENTILATION DEVICE, VENTILATION SYSTEM, AIR CONDITIONING VENTILATION SYSTEM, CONTROL METHOD FOR VENTILATION DEVICE AND PROGRAM

To provide a ventilation device capable of appropriately ventilating a space in accordance with an opening/closing state of an opening part, a ventilation system, an air conditioning ventilation system, a control method for the ventilation device and a program.SOLUTION: A ventilation device 10 for ventilating a space that can communicate with outside via an openable/closable opening part includes: an air blowing fan 14 that sends out air; and a rotation control section 29 that controls rotation of the air blowing fan 14. In the state where a signal from an operating section that transmits a predetermined signal in accordance with an operation by a user U is not received, when detecting an increase of at least either one of input to the ventilation device 10 or rotational frequency of the air blowing fan 14, the rotation control section 29 increases the rotational frequency of the air blowing fan 14 until a first predetermined time T1 elapses.SELECTED DRAWING: Figure 2 【課題】開口部の開閉の状態に応じて、空間の換気を適切に行うことができる換気装置、換気システム、空調換気システム、換気装置の制御方法、及びプログラムを提供する。【解決手段】開閉可能な開口部を介して外部と連通可能な空間を換気する換気装置１０であって、空気を送り出す送風ファン１４と、送風ファン１４の回転を制御する回転制御部２９と、を備え、回転制御部２９は、ユーザＵの操作に応じて所定の信号を送信する操作部からの信号を受信していない状態で、換気装置１０に対する入力、または送風ファン１４の回転数の少なくともいずれか一方の増加を検知した場合に、第１所定時間Ｔ１が経過するまで送風ファン１４の回転数を増加させる。【選択図】図２