Check The Backflow Protection Device; Clean The Wastewater Pump(S) Housing - Kessel Aqualift F Duo Anleitung Für Einbau, Bedienung Und Wartung

7.3.4 Check the backflow protection device
Fitting made of plastic
Make sure that the backwater flap <16> is free of
damage. The seal must be in perfect
condition.
Make sure that the ventilation device is in the
CLOSED position [17].
* One (Mono) or two (Duo) backwater protection devices
depending on the system version.
7.3.5

Clean the wastewater pump(s) housing

Clean both wastewater pumps, to do this:
All the pumps are equipped with two press-off options on the
attachment flange.
Lift out and clean the pump <14> .
Make sure the pump is not damaged in any way.
Clean the pump interior <27>.
Make sure that the venting bore in the pump
is clear.
Make sure that the pump seal <29> is
in a perfect condition.
Before installing the pumps, we recommend cleaning
the wastewater tank (see 7.3.6).
Install the pump again. Tightening torques of the screws: 7 Nm
MAINTENANCE
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25
16
[19]
14
29
27
[20]
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