Miele PT 5136 OS Operating And Installation Instructions page 41

Connection to an exhaust flue
1. Pipe with connection piece
(= supplied with wall vent kit)
2. Adapter for flexible ducting hose
3. Exhaust flue insulated against damp
,
The exhaust air must not be
vented into a chimney or vent flue
which is in use, nor should it be
connnected to ducting which
ventilates rooms with fireplaces.
Installation - extraction ducting
41