| 摘要 |
PURPOSE: To obtain an air conditioning ventilating fan which can form a ventilating environment having high comfortableness for eliminating vapor condensation without wastefully using power. CONSTITUTION: An air conditioning ventilating fan of a simultaneous air intake and exhaust system for heat exchanging between the intake air and the exhaust air comprises first temperature detecting means 19 at the inlet side of an intake air passage 6, and second temperature detecting means 20 and vapor condensation detecting means 21 at the inlet side of an exhaust passage 7, and inputs the outputs to a control circuit 18, and controls as follows when the motor 17 of a blower produces a vapor condensation detection output by the control means. When the outputs of the means 19, 20 are all set values or more, the blowers are driven at higher number of revolutions. When at least one of the outputs of the means 19, 20 is less than the set value, the blowers are driven at low number of revolutions. |
