| 摘要 |
The room ventilation unit (1) comprises a fan device (3), a heat exchanger (2), a heater (18), and a measuring device (16) having sensors (12-15) for detecting the temperature and humidity of supplied air. A control device (17) is connected to a comparator circuit which compares the values detected by the measuring device with predetermined reference values. The heater is activated for heating the supplied air, depending on the comparison result. Independent claims are included for the following: (1) method of supplying fresh air to room; (2) controller of room ventilation unit; and (3) method for controlling fan device and heat exchanger of room ventilation unit. |
