Miele KWT 1601 Vi Operating And Installation Instructions page 58

Installation
Mounting the air separator
The air separator keeps the supply and
exhaust air separate. This prevents
warm exhaust air from flowing into the
machine, optimizing the energy
performance of the unit.
^ If necessary, shorten the three parts
of the air separator.
^ Insert the foam pieces back into the
sides.
58
^ Position the air separator in the
center of the appliance door.
^ From below, screw the air separator
firmly onto the door with the 2
screws.