Abstract: A heating and air-conditioning unit includes a heating unit, at least one cold-air duct guided around the heating unit, and air-mixing spaces downstream of the heating unit. At least one partition separates the mixing spaces into which cold and heated air can each be controllably introduced by air-flow control elements. As a result, air which can be temperature-controlled separately, can be supplied to at least two zones. To minimize the structural space occupied by the unit, at least one first partial air stream flows through a first assigned subregion (22VR and 22VL) of the heating unit (22) in a first direction, and at least one second partial air stream flows through a second assigned subregion (22HR and 22HL) of the heating unit (22) in a second direction opposed to the first direction.

Abstract: A heating or air-conditioning unit for a motor vehicle includes a heating unit for generating heated air, at least one cold-air duct guided around the heating unit, and air-mixing spaces provided downstream of the heating unit in the direction of flow. The mixing spaces are separated from one another by at least one partition and into which cold and heated air can be introduced in each case in a controllable manner by means of air-flow control elements, in order to mix the air in each mixing space to a certain mixing temperature. It is thereby possible to supply air which can be temperature-controlled separately to at least two air-conditioning zones.