Iron / manganese removal
Demanganisation system GENO-mat MN-Z
Order no. 095 153 048-inter Edited by: nkes-mrie G:\BA-153048-INTER_095_GENO-MAT_MN-Z.DOCX
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F Operation
1 | How to operate the control unit
The control unit regulates the operating processes of the demangan-
isation system.
1.1
How to set the
time
GENO-mat
MN-Z demanganisation systems are factory-set so that
the automatic backwash is started at 2am each day (during the
night). Set the current time during commissioning or after a power
failure.
1. Loosen the screw on the housing cover (top right).
2. Open the housing cover.
3. Press and hold the red button (fig. F-1, pos. 6).
4. Turn the 24 hour disk until the reference arrow (fig. F-1, pos. 2)
points to the current time.
5. Release the red button (fig. F1, pos. 6).
Note:
If the preset time for the backwash (2:00 am) is unfavourable
for internal reasons, set a time which deviates from the current time
on the 24 hour disk to adjust the starting time for the backwash.
Example:
Desired starting time of the backwash: 22:00
Move clock forward 4 hours.
1.2
How to set the
backwash interval
The maximum backwash interval is 12 days. Furthermore, an auto-
matic backwash can be carried out after 6, 4, 3, 2 or 1 day(s) (fac-
tors of 12). Fig. F-1 indicates the setting for a backwash to be car-
ried out every 2 days.
1. Determination of the backwash interval.
For hygienic reasons, a backwash should be carried out every 6
days (factory-setting).
If the differential pressure of the filter is > 0.3 bar above normal af-
ter 6 days due to a higher concentration of dirt in the water, a
backwash process should be initiated every 4 days or at even
shorter intervals.
The same applies in case of an early breakthrough of dirt parti-
cles.
