Heating and/or air conditioning system for motor vehicle, reverses air flow direction during bypass element adjustment to recirculation setting until recirculation position reached

摘要

The system has a manual or automatic changeover device from external to recirculation mode, at least one fan (3) and at least one actuation drive (4) for moving a bypass flap (5) or blind between external and recirculation positions (Z,U). During adjustment of the bypass element to the recirculation setting the direction off the air flow is reversed, whereby the reversal is maintained until the recirculation position is reached.