Miele PDW 909 SOM Installations Plan page 31

 During transportation of the machines, ensure their stability.
 Do not pick them up by the drum door.
The washer-dryer stack must be set up on a completely level, hori-
zontal and firm surface with the minimum stated floor load capacity
(see "Technical data").
Tip: A concrete floor is the most suitable installation surface. It is far
less prone to vibration during the spin cycle than wooden floorboards
or a carpeted surface.
The floor load created by the washer-dryer stack is the load exerted
by the area of the machine in contact with and transferred to the in-
stallation surface.
The washer-dryer stack requires a gap of at least 300 mm on each
side to allow for movement during operation. Please ensure a min-
imum distance of 400 mm is maintained between the rear of the ma-
chine and the rear wall.
The washer-dryer stack must not be installed on a carpeted floor.
en - Installation notes
31