Miele PWM 920 EL, Installations Plan, Page: 29 / 130

en - Installation notes
*INSTALLATION*
29
Only connect the washing machine to the water supply with the
hoses supplied.
Cold water con-
nection For the cold water connection one stopcock each with a
3/4" external thread is required. A connector (Y-piece) can be used if
required to connect 2 water inlet hoses with a ¾" screw thread to a
single stopcock with a 1" male thread.
Hot water con-
nection
To minimise energy consumption during operation with hot water,
the washing machine should be connected to a suitable hot water
ring circuit if present.
So-called “transmission pipes” (single pipes to hot water generators)
can result in cooling down of the water remaining in the pipes if not
in constant use. More energy would then be consumed to heat the
suds up again.
The temperature of the water intake must not exceed 70 °C on ma-
chines with electric heating (EL).
The machine must be connected to the water supply using the inlet
hoses provided.
If there is no hot water supply at the installation location for the wash-
ing machine, the inlet hose for hot water must also be connected to
the cold water supply. A Y-piece is required in this case. The cold wa-
ter consumption increases accordingly to account for the missing hot
water intake.
For functional and technical reasons it is not possible to operate
the machine exclusively with a hot water connection.
Even if a hot water connection is present, the washing machine
must be connected to a cold water intake.
Drain valve 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.