Kessel Aqualift F Mono Instructions De Pose Et D'utilisation page 27

4.2 Installing the inlet
Mount the inlet pipe on the socket (1).
The inlet can be optionally mounted on one of the pre-
scored areas (see "Product description", page 21).
Make sure that:
Position the inlet above the level sensor for switching on
the pump(s). Otherwise backwater will occur in the inlet
pipe.
Alternatively, the switching points must be adapted.
Do not position the inlet in the immediate vicinity of the
level sensor; dirt and the inflowing wastewater could
impair the sensor's function.
Use a matching hole saw and seal for pipe penetration.
Align the centre of the drillhole with the centreline of the
pre-scored area.
Do not deburr the edges of the hole, as this could result
in leaks.
4.3 Connecting the ventilation pipe
Saw off the socket for the ventilation pipe (1) at the cut-
ting edge made.
Connect the ventilation pipe to the vent connection (1).
Connections and clamps should have sound-reducing
properties.
Route a separate ventilation pipe to above the roof in
accordance with EN 12056-4.
010-907 Lifting station/Installation and operating instructions 27 / 100