Plumbing
75
Connecting the drain hose
– The machine 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 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 ap-
prox. 1.5 m of flexible drain hose with
an internal diameter of 22 mm.
Hose clips are supplied with the dish-
washer.
– The drain hose must not be
shortened. The hose can be exten-
ded using a connection piece to at-
tach a further length of hose. The
drainage length must not be longer
than 4 m and the delivery head no
higher than 1 m.
– The drainage system must be able to
accommodate a minimum drainage
flow of 16 l/min.
Make sure that there are no kinks
in the hose, and that it is not
squashed or stretched.
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 machine 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.
Summary of Contents for PG 8131i
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