Automatic temperature and humidity regulation – Ventilator type – Electrically actuated
Patent
1995-06-06
1997-05-06
Tapolcai, William E.
Automatic temperature and humidity regulation
Ventilator type
Electrically actuated
165248, F24F 7013
Patent
active
056262884
ABSTRACT:
A method and apparatus for ventilating an enclosed air space, such as the crawl space under a building, and which includes a controller which is switchable between a cooling mode which activates a ventilating fan upon the temperature in the space reaching a predetermined upper limit and the differential of the temperatures inside and outside of the space reaching a predetermined value, and a heating mode which activates the ventilating fan upon the temperature in the space reaching a predetermined lower limit and the differential of the temperatures inside and outside of the space reaching a predetermined value. The ventilating fan may also be activated by the presence of predetermined concentrations of dangerous or destructive gases, such as radon and water vapor.
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