Air conditioning system

The system has an evaporator (2) and a heating body (3) arranged in an air guidance housing (4). Air channels (5) are provided that lead directly from the evaporator for cold air and/or directly from the heating body for hot air to an outflow device. The channels for hot and cold air are separately formed, whereby the channels are essentially mutually parallel and are separated by a wall (6) as far as a distribution/mixing unit.