Plumbing
88
Connecting the water drainage
system
– The machine drainage system has a
non-return valve, which prevents dirty
water from flowing back into the
dishwasher via the drain hose.
– The dishwasher drainage hose
should be connected to a
separate
on-site drain for the dishwasher only.
If no separate drain is available, we
recommend connecting it to a dual-
chamber siphon.
– The dishwasher is supplied with an
approx. 59“ (1.5 m) flexible drain
hose with an internal diameter of
7/8” (22 mm).
Hose clips are supplied with the dish-
washer.
– The drain hose must not be short-
ened. The hose can be extended us-
ing a connection piece to attach a
further length of hose. The drainage
length must not be longer than 13 ft
(4 m) and the delivery head no higher
than 39" (1 m).
– The drainage system must be able to
handle a discharge rate of at least
16 L/min.
Make sure that there are no kinks
in the hose, and that it is not crushed
or stretched.
Venting the drain
If the on-site drain connection is situ-
ated lower than the guide path for the
lower basket rollers in the open door,
the drainage system must be vented.
Otherwise, a siphoning effect during a
program can cause the machine to
empty itself of water.
To vent it:
Open the dishwasher door fully.
Pull the lower spray arm firmly up-
ward to remove it.
Cut off the top of the vent valve in the
wash chamber.
