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10. Maintenance and cleaning
A functioning test of the pumps and blowers must be done every six months. Every pump and blower can
be separately run in test mode. The float switch is manually positioned into the two switching positions
(ON/OFF) while the display is checked.
The battery voltage is controlled shown in the menu. The battery voltage is constant on 9.6 Volt when
new. If the battery voltage displays a value below 8.5 Volt (when not discharged by a previous power
failure) then the battery must be replaced. Only rechargeable Nimh batteries are allowed!
General specifications of maintenance and mechanical cleaning of the membrane can be seen in the
AQUALOOP Membrane manual.
Subsequently, the additional cleaning options of chemical cleaning of AQUALOOP membrane station are
described in Tank system.
10.1 Chemical cleaning of AQUALOOP Membrane station
An intensive chemical cleaning of the membrane(s) is done only if the filtration performance is
significantly reduced. (Detailed information can be obtained from the AQUALOOP Membrane manual.)
Chemical cleaning routine for the AQUALOOP System:
A cleaning option is available in the control menu of the AQUALOOP Membrane controller. A semi-
automatic cleaning of membrane cartridges can be performed without the need to dismount the
membranes.
Menu start of cleaning routine
Selection of menu 11
1.)
Security questions for starting the cleaning routine
2.)
Controller automatically starts the sludge pump until the
minimum level of water is reached in the bioreactor (BRmin).
Note: If no internal sludge pump is connected, then the
bioreactor should be pumped with an external pump until
"BRmin -" appears in the display (with a simultaneous sound of 5
beep tones)
Attention: The suction pump must not be allowed to run dry!
3.)
If the controller shows "BRmin -", then a back flush process is
automatically performed to empty the backflushing tank. This
procedure ends automatically or can also be terminated
manually.
Menu11:
Chemical cleaning
Next: next menu
ENTER: start clean.
Menu11: Step 1
Chem. cleaning start?
NEXT: exit menu
ENTER: confirm
Menu11: Step 2
Slugepump working
Status: BRmin +
ENTER: exit menu
Menu11: Step 3
Status: BRmin -
Backflush pump
NEXT: abort back
flush
