Miele PDR 914 HP Schéma D'installation page 16

en - Installation notes
16
Air outlet vent
Separate vent ducting is not required for the heat pump dryer due to
the closed air circuit.
The hot air that is blown out from the heat exchanger to cool it warms
the room air. Therefore, ensure sufficient room ventilation, e.g. by
means of ventilation openings that cannot be closed. If the room is
not sufficiently ventilated, the drying time will be longer, which will
also increase the energy requirement of the dryer.
The air outlet vent must never be closed or covered by objects.
Condensate drainage
The heat pump in this tumble dryer operates according to the prin-
ciple of condensation. A separate floor drain must be provided in the
installation room for condensate produced during the drying process.
The condensate drainage point is located at the back of the heat-
pump dryer. The condensate must be drained to the floor drain via a
DN 30 pipe pointing downwards.
It must be ensured that condensate cannot flow back into the dryer.
Any condensate that gets back into the machine can cause damage.