Miele PWM 909 EL DV DD Schéma D'installation page 29

Hot water connec-
tion
Drain valve (de-
pending on model)
Drain pump (de-
pending on model)
Alternatively, the hot water connection should be blocked using the
blind stopper supplied with the machine and the machine controls
should be set to cold water intake by the service technician.
The same connection requirements as for cold water also apply to hot
water up to 70 °C.
A suitable connection hose with a threaded union is supplied with the
machine.
The machine with hot water connection also requires a cold water
connection.
In the case of washing machines with a drain valve, a motorised valve
is used to drain the machine. An HT DN 70 angle connector can be
used for draining the machine directly into the waste water system
(without a siphon) or into an on-site floor drain (with odour trap).
Thanks to an improved closing mechanism and a larger cross-sec-
tion, even the coarsest of soiling does not leave any deposits or
debris behind which could result in blockages. The drain valve can
also be operated manually to allow the suds container to be emptied
in the event of a power outage.
A vented drainage system is vital for unimpeded drainage.
If several machines are connected to a single drain pipe, this should
be sufficiently large to allow all machines to drain simultaneously.
The appropriate Miele installation kit (mat. no.: 05 238 090) is
available to order from the Miele Customer Service Department or
your Miele dealer for venting an HT DN 70 pipe.
If the slope for drainage is extremely steep, the piping must be ven-
ted to prevent formation of a vacuum in the washing machine's
drainage system.
Slow or obstructed drainage or a backup of water in the washing ma-
chine drum as a result of undersized pipework can result in faults oc-
curring during programmes, which will result in fault messages ap-
pearing in the display.
 Outflowing suds can be as hot as 95 °C. Danger of burning!
Avoid direct contact.
In machines with drain pump, the suds are drained through a drain
pump with a delivery head of max. 1 m.
The drain hose must be installed free of kinks for the suds to drain
freely.
There are the following options for draining the machine:
- Drain hose connected to a plastic drain pipe with a rubber sleeve
(there is no need to use a siphon)
- Drain hose connected securely to a sink with a plastic nipple
- Connected securely to a floor drain (gully)
en - Installation notes
29