| 摘要 |
PROBLEM TO BE SOLVED: To provide a room pressure control system capable of securing room pressure change to a target value direction of room pressure control when air supply and exhaust to a room are started.SOLUTION: In the room pressure control system, when a ventilation amount is changed by shifting an air supply/exhaust passage from a closed state to an opening state in a process of starting the air supply/exhaust to the room maintained in set room pressure, changing speed control is started after starting the air supply/exhaust so as to adjust the time required after an opening degree of the air supply/exhaust passage reaches a predetermined opening degree until the air supply/exhaust passage completes shifting to the opening state to be longer than the normal necessary time for opening/closing. |
