AIR CONDITIONER FOR VEHICLE

摘要

PROBLEM TO BE SOLVED: To prevent clouding of window glass within a cabin when switching from a cooling operation to a heating operation. SOLUTION: When switching from the cooling operation to the heating operation, only a fan 208a for inside air is worked in a state that all blow-off ports 201 to 204 are closed and air is prevented from flowing into the cabin from the blow-off ports 201 to 204. As a result, air is introduced from an inside air introduction port 206 and air within an air conditioning casing 200 is discharged from an outside air introduction port 205 to the outside of the cabin and thereby water vapor evaporated from the surface of an indoor unit 130 is discharged to the outside of the cabin together with air within the air conditioning casing 200 when switching from the cooling operation to the heating operation and clouding of window glass can be prevented within the cabin when switching from the cooling operation to the heating operation.