HVAC module, in particular for a motor vehicle, - with an air path for air to flow through, in which an evaporator for cooling and dehumidifying the air and a heating device for heating the air are arranged, which subdivide the air path into a main path, which passes through the evaporator and the heating device, and into a side path which runs fluidically parallel to the main path and passes the evaporator and the heating device, - wherein the side path branches off from the main path upstream of the evaporator and opens into the main path again downstream of the heating device and is fluidically connected to the main path between the evaporator and the heating device, - wherein the side path comprises a first side path portion passing the evaporator and a second side path portion passing the heater, - having a first valve flap which is arranged in the air path and is adjustable between a closed position and an open position in such a way that: - in the closed position, no air can flow upstream of the evaporator from the main path directly into the first side path portion, - in the open position, air can flow upstream of the evaporator from the main path directly into the first side path portion, - having a second valve flap which is arranged in the air path and is adjustable between a first, second and third position such that: - in the first position, air can flow directly from the first side path portion into a main-path intermediate portion formed between the evaporator and the heater, but no air can flow directly from the first side path portion and from the main-path intermediate portion into the second side path portion, - in the second position, air can flow from the main path intermediate portion directly into the second side path portion, - in the third position, air can flow directly from both the first side path portion and the main path intermediate portion into the second side path portion, characterized in that in the second position, no air can flow from the first side path portion directly into the main path intermediate portion and directly into the second side path portion. - with an air path for air to flow through, in which an evaporator for cooling and dehumidifying the air and a heating device for heating the air are arranged, which subdivide the air path into a main path, which passes through the evaporator and the heating device, and into a side path which runs fluidically parallel to the main path and passes the evaporator and the heating device, - wherein the side path branches off from the main path upstream of the evaporator and opens into the main path again downstream of the heating device and is fluidically connected to the main path between the evaporator and the heating device, - wherein the side path comprises a first side path portion passing the evaporator and a second side path portion passing the heater, - having a first valve flap which is arranged in the air path and is adjustable between a closed position and an open position in such a way that: - in the closed position, no air can flow upstream of the evaporator from the main path directly into the first side path portion, - in the open position, air can flow upstream of the evaporator from the main path directly into the first side path portion, - having a second valve flap which is arranged in the air path and is adjustable between a first, second and third position such that: - in the first position, air can flow directly from the first side path portion into a main-path intermediate portion formed between the evaporator and the heater, but no air can flow directly from the first side path portion and from the main-path intermediate portion into the second side path portion, - in the second position, air can flow from the main path intermediate portion directly into the second side path portion, - in the third position, air can flow directly from both the first side path portion and the main path intermediate portion into the second side path portion, - in the closed position, no air can flow upstream of the evaporator from the main path directly into the first side path portion, - in the open position, air can flow upstream of the evaporator from the main path directly into the first side path portion, - having a second valve flap which is arranged in the air path and is adjustable between a first, second and third position such that: - in the first position, air can flow directly from the first side path portion into a main-path intermediate portion formed between the evaporator and the heater, but no air can flow directly from the first side path portion and from the main-path intermediate portion into the second side path portion, - in the second position, air can flow from the main path intermediate portion directly into the second side path portion, - in the third position, air can flow directly from both the first side path portion and the main path intermediate portion into the second side path portion,