Heating, ventilating and/or air conditioning device for motor vehicle compartments with zone temperature regulation

The device has a single distribution shutter (56) with a control unit (60) for distributing a portion of reheated air from a heating chamber (16). The portion is distributed either to a mixing chamber (20) or to a mixing chamber (50) for producing mixed air flow. The shutter has a control unit (62) to control the distribution of the mixed air from the chamber (50) through the ducts (52, 54). The mixing chamber (50) is situated at the intersection of an auxiliary duct (40), the chamber (16) and the ducts (52, 54).