Plumbing
80
Drainage
– The appliance drainage system is fit-
ted with a non-return valve, which
prevents dirty water from flowing
back into the dishwasher via the
drain hose.
– The dishwasher is supplied with ap-
prox. 1.5 m of flexible drain hose with
an internal diameter of 22 mm.
– The drain hose can be extended us-
ing a connection piece to attach a
further length of hose. The drainage
length must not be longer than 4 m,
and the delivery head must not ex-
ceed 1 m.
– If the hose is to be directly fitted to
the drainage outlet on site, use the
hose clip supplied (see installation
sheet).
– The hose can be directed to the left
or the right of the appliance.
– The on-site connector for the drain
hose can be adapted to different
widths of hose. If the connector pro-
trudes too far into the drain hose, it
will need to be shortened. Otherwise
the drain hose may become blocked.
– The drain hose must not be
shortened.
Make sure that there are no kinks
in the hose, and that it is not
squashed or stretched.
After connecting the dishwasher to
the drainage system, check that all
plumbing connections are watertight.
Venting the drainage system
If the on-site drain connection is situ-
ated lower than the guide path for the
bottom basket rollers in the open door,
the drainage system must be vented.
Otherwise a siphoning effect during a
programme can cause the appliance to
empty itself of water.
To vent it: Open the dishwasher door
fully.
Pull the lower spray arm firmly up-
wards to remove it.
Cut off the top of the vent valve in the
wash cabinet.
