Miele DA 4208V D Operating And Installation Instructions page 47

 Loosen the screws from the exhaust
socket and the hose inside and
remove the exhaust socket. It is not
required for recirculation mode.
 Remove the non-return flap. It is not
required for recirculation mode.
 Place the directional unit in the
installation frame with the arrows
pointing to the sides.
 Rotate the directional unit by 90° so
that the arrows now point forwards
and backwards.
Installation
47