| 摘要 |
PURPOSE:To enable an operator to immediately stop a blower irrespective of whether a timer operation is conducted or not, by providing stopping means in a microcomputer. CONSTITUTION:A microcomputer 58 includes timer means for arbitrarily setting an operation time of a blower 2 and operating the blower 2 for the set time, means for operating the blower 2 with a notch just before setting of the timer means, and means for stopping the operation irrespective of whether or not the blower 2 is in operation. Accordingly, when a key switch 21 is depressed in a manual operation mode, current to the blower 2 is stopped to stop the blower 2. On the other hand, when a key switch 20 is depressed in an auto operation mode, the manual operation mode is selected to stop the timer operation and stop the blower 2.
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