AIR CONDITIONING DEVICE FOR VEHICLE

In an outside air mode, outside air introduced through an outside air introducing opening is introduced into a ventilation duct. In an inside air mode, inside air introduced through an inside air introducing opening is introduced into the ventilation duct. In an inside and outside air mixture mode, the outside air introduced through the outside air introducing opening and the inside air introduced through the inside air introducing opening are both introduced into the ventilation duct. When the interior of the vehicle is heated in the inside air mode or in the inside and outside air mixture mode, the control unit executes control such that all of the air to be blown out through the blowing opening has passed through the heater core, and sets the temperature of the heating medium in the heating system in accordance with the temperature of the air passing through the evaporator.