| 摘要 |
PURPOSE:To purge the humidity in a space under the floor and further to operate a ventilating device intermittently so as to shorten the total operating time and reduce the operation cost by automatically operating the ventilating device by the difference between the humidity in the space under the floor and the humidity in the external air. CONSTITUTION:Sensing parts 6 and 7 for sensing the humidity in the space under the floor and the humidity in the external air, are installed in a space under the floor and a space under the eaves. When the difference between the humidity in the space under the floor and the humidity of the external air becomes HON, the contact 11 is closed, power is supplied to a motor 10, and the ventilating device 1 starts its operation, the humidity under the floor being discharged out of the hourse and the humidity in the space under the floor being gradually decreased. When the difference between the humidity in the space under the floor and the humidity in the external air becomes HOFF, the contact 11 is opened, power supply to the motor 10 is stopped and the operation of the ventilating device 1 is also stopped. Thereafter, the humidity from the ground surface is gradually accumulated. When the difference between the acuumulated humidity and the humidity in the external air becomes HON, the operation of the ventilating device 1 is similarly resumed. As a result, the ventilating device 1 carries out intermittent operations. Hence, the operation time may be shortened, and further, the humidity under the floor may be accurately discharged without requiring labor. |
