The evaporation box on the car is in front of the co-pilot and inside the dashboard. After the glove box of the co-pilot is removed, you can see that there is a black shell inside. In the black shell, he, the blower and the warm air tank are all integrated in the black shell.
These evaporation boxes need to remove the instrument panel as a whole before they can be removed. At the same time, put some antifreeze, because it is connected to the warm air tank, which contains antifreeze. You also need to get rid of the fluorine in the air conditioner.