Operation
The degree of contamination and cleaning
process can be observed from the outside.
INFO_NO_HEADER
The device is backwashed with
filtered water. The filtered water
supply of the domestic installation
remains intact during the backwash-
ing process. No dirty water can reach
the pure water side during the back-
washing.
4.2.1 Backwashing interval
If cleaning is not performed soon enough,
the result may be damage to the sieve
insert. Large quantities of filtered particles
can deform the sieve fabric and in extreme
case lead to tearing of the sieve fabric.
In addition, larger deposit quantities can
impair the backwashing function mechani-
cally.
According to DIN EN 13443-1 backwashing
the device is required at the latest every six
months.
The manufacturer recommends a back-
washing:
•
at least every 2 months
•
if the water pressure drops
•
if the filter is visibly dirty
Experience has shown that new installa-
tions in the early stages of installation lead
to increased dirt deposits. In this case, a
more frequent backwashing is necessary.
4.2.2 Due date of backwashing
Every two months, a beep reminds you that
the backwashing is due.
To switch off the beep, press the reset but-
ton on the handwheel cover.
By pressing the button, the time interval
of 2 months is restarted.
The signal is just an additional reminder
of the necessary backwashing. Indepen-
dant from this signal, the backwashing
interval indicated in chapter 4.2.1 must be
observed.
Check backwash reminder alarm
Press the reset button for at least 3 sec-
onds:
•
Beep:
the backwash reminder alarm
works. The batteries still have enough
capacity.
•
No beep:
replace the batteries by new
leak-proof batteries.
This battery test has no influence on the
backwashing interval.
Replace batteries of the backwash
reminder alarm
1.
Remove the handwheel cover.
2.
Replace the batteries in the battery
compartment by new ones of the same
type (AAA or LR03).
3.
Refit the handwheel cover.
4.
Press the reset button on the hand-
wheel cover for at least 3 seconds. The
time interval of two months is restarted.
Attention:
do not dispose of used batter-
ies with the household waste, but in accor-
dance with the local waste disposal regula-
tions.
12
JUDO JPM+
1702272 • 2020/07
