| 摘要 |
PROBLEM TO BE SOLVED: To provide a ventilator wherein the occurrence of abnormality and the abnormal site can be recognized easily by means of an abnormality lamp and an operation mode lamp when an abnormality occurs. SOLUTION: A ventilator is equipped with an operation switch 7 for setting the operation mode, an operation mode lamp 8 for indicating the operation mode, a damper drive means 20 which drives a motor-operated damper 6 provided for opening and closing the ventilation path of the ventilator body 3, a control means 18 for controlling the quantity of ventilation air upon receiving a signal by means of an operation setting means 16 for setting the operation mode by the setting of the operation switch 7 and controlling the opening and closing of the motor-operated damper 6, and a motor drive means 19 for driving the motor 5 by the command of the control means 18, and when an abnormality detection means 23, which detects the operation states of the damper drive means 20 or the motor drive means 18, judges either of them to be abnormal, the abnormality lamp 9 is flickered and also the operation mode lamp 8 is flickered by means of an abnormality indication means 24. |
