Miele PUR 98 D Operating And Installation Instructions page 32

Installation
 Secure the hose to the directional unit
socket using a hose clip.
 Check that the hose is held securely.
32
 Push the telescopic chimney over the
installation frame:
- with the recirculation grilles at the
bottom for extraction mode (AE),
- with the recirculation grilles at the top
for recirculation mode (RM).
 Bend the two retaining tabs outwards
to prevent the telescopic chimney
from slipping down again.