| 摘要 |
A window fan with an electronic controller having an AUTO mode of operation that is responsive to the DELTA T between inside and outside temperature, a minimum inside temperature threshold, and the outside relative humidity. Accordingly, if it is relatively hot or humid outside, or if it is relatively cold inside, the window fan is inactive. Thus, the fan is automatically activated only during those time periods when it is most advantageous to ventilate with outside fresh air.
|
