Cleaning/Maintenance - Kessel Aqualift F Compact Installation And Operation Manual

Unplug the control unit before
Caution
any work is done on the pump!
Please follow all safety instruction in Chapter 1.
The Aqualift F chamber should be pumped empty
before any maintenance work is done – this will
prevent water from leaking out of the tank.
4.1 Removing the pump
The pump can be removed by unlocking the red
quick release clamp that secures the pump's out-
let and the three pump locking levers. This can
all be done quickly without the use of any tools.
The backwater flap in the outlet of the Aqualift F
prevents any wastewater in the outlet pipe from
flowing back into the tank. (Illustration 4).
4.2 Maintenance
Before any work is done on the pump it should be
completely removed from the tank and cleaned.
Any maintenance must be handled by a qualified
professional. Repairs should only be handled by
the manufacturer.
General Maintenance
According to DIN 1986-3 maintenance from a
qualified professional should take place at the
following intervals:
For single homes the maintenance should take
place every 12 months, and multi-family homes
every 6month.
For commercial applications the maintenance
should take place every 3 months.
This maintenance should consist of a visual in-
spection of all system parts. The system should
be checked for build up and worn out parts. The
following listed parts should also be visually in-
spected and cleaned / replaced if build up / da-
mage is noted:
- Cutting assembly (macerating system)
- Ventilation opening
- Pressure connection
- Pressure switch
- Storage tank
4. Cleaning / Maintenance
27
4.3 Maintaining the integrated
backwater flap
Remove the pump. Drain out any water out of
the pressure pipe outlet by carefully opening
the backwater flap. After removing the coupling
piece (by loosening the screws) the backwater
flap can be removed. It is also advisable at this
stage to inspect and clean the outlet pressure
pipe since full access to this pipe is now present.
4.4 Installing the pump
Before re-installing the pump, clean and lubricate
all gaskets and sealing areas. Reinsert the pump.
4.5 Checking the pressure switch
Remove the transparent pressure hose from the
storage tank and check to make sure the hose has
free passage all the way to the control unit. Re-
move any condensation water if present. Replace
the hose. Remove the pressure sensor pipe by un-
locking the red quick release clasp and pulling it
out of the storage tank. Check the sensor pipe for
debris or blockages. Insert the pressure pipe with
its opening pointed down into a bucket of water.
If the pump activates then the pressure system is
in operating order. If the pump does not activate
please contact KESSEL Customer Service.
Caution
Before placing the pressure sensor pipe back
into the storage tank, the tank must be pumped
free of water so that the switching levels remain
properly calibrated.
4.6 Checking the optical sensor
Unscrew the two optical sensor screws and re-
move the sensor. Place the sensor into a bucket
of water – if the pump activates and the LED on
the control unit lights, the system is in operational
order. Replace the optical sensor and secure with
the two screws. Acknowledging any malfunctions
on the control unit can be handled as stated in
the control unit's user's manual.