Miele PWM 511 Schéma D'installation page 8

en - Installation notes
Drain valve (de-
pending on model)
Drain pump (de-
pending on model)
8
In the case of washing machines with a drain valve, a motorized valve
is used to drain the machine. An HT DN 70 (2 15/16" | 75 mm) angle
connector can be used for connecting the drain valve directly into the
waste water system (without a siphon) or into a floor drain (on-site
gully with odor trap).
Thanks to an improved closing mechanism and a larger cross-sec-
tion, even the coarsest of soil 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 failure.
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.
If the slope for drainage is extremely steep, the piping must be
vented to prevent formation of a vacuum in the washing machine's
drainage system.
Slow or obstructed drainage or a backup of water in the drum as a re-
sult of undersized pipework can result in faults occurring during pro-
gram sequences, which will result in fault messages appearing in the
machine display.
 Outflowing suds can be as hot as 203°F (95°C). Danger of injury
by burning!
Avoid direct contact.
In machines with drain pump, the suds are drained through a drain
pump with a delivery head of max. 3.3 ft (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)
If required, the hose can be extended to a length of up to 16.4 ft (5 m).
For a drain height of more than 3' 3" (1 m), a replacement drain pump
for a delivery head of max. 6 ft (1.8 m) is may be needed.
Dispenser connection
The machine is equipped with an interface for external dispenser sys-
tems. Adapters for pre-mixed suds or liquid detergent from external
dispenser systems for up to 6 connections should be obtained from
Miele Customer Service and connected.
A separate Connector Box is required for controlling the dispenser
pumps electrically. This must be installed by your Miele dealer or
Miele Customer Service. It is particularly important to observe the
manufacturer's instructions when using a combination of cleaning
agents and special application products.