The Water Protection System - Miele WWV 980 WPS Passion Operating Instructions Manual

Installation and connection

The water protection system

The Miele water protection system pro-
tects all parts of the washing machine
from water damage.
The system consists of three main com-
ponents:
– the inlet hose
– the electronic unit and drainage and
overflow protection
– the drain hose
The Waterproof System (WPS)
1
2
3
a Two solenoid valves
b Double-skinned inlet hose
c Sump
d Float switch
e Electronic unit
f Drain pump
92
5
6
4
The inlet hoses
– The casing on the inlet hoses con-
tains two solenoid valves , which
cut off the water intake directly at the
stopcock. These valves provide two-
fold protection. In the event that one
of the valves is faulty, the other valve
will cut off the water intake.
Blocking the water intake at the stop-
cock means that the inlet hoses are
only under pressure whilst water is
being taken into the machine. For the
remainder of the time, pressure on
the inlet hoses is negligible.
– Protection against the solenoid
valves bursting
The solenoid valves are pressure
tested to between 7,000 kPa and
10,000 kPa against bursting.
– The double-skinned inlet hoses 
have a pressure-resistant inner hose
and a protective sleeve. Any leaking
water is fed into the sump  through
this protective sleeve. A float switch
 closes the solenoid valves, pre-
venting any more water flowing into
the machine and water in the suds
container is pumped away.