| 摘要 |
<p>The present invention relates to an air treatment apparatus which is controlled by a control and regulating system with a registration and calculation unit and containing heat recovery in a heat exchanger with a outlet air fan, where the temperature at the fan inlet opening varies, whereby the air treatment apparatus comprises at least one temperature sensor for the registration of actual outdoor temperature, the temperature efficiency of the heat exchanger is known, the air treatment apparatus contains at least one registration and calculation system which determines the mass flow through the outlet air fan to a predetermined value, and that the registration and calculation system controls the airflow qf of the outlet air fan via a control means so that this predetermined value is obtained.</p> |
