Judo PROFI-PLUS - Filter Backwashing Procedure

14 JUDO PROFI-PLUS
Operation
1 RESET-key
2 Handwheel lid with note electronics and
battery compartment
3 Handwheel for free discharge
4 Adjusting ring for the next backwash
date
5 Suction Pipe
6 Transparent filter bell
7 Cover
8 Filter Funnel
9 Coarse filter
10 Built-in rotary flange
11 Flushing valve
12 Fine filter
a Water Inlet
b Filtered water
5.3 Backwashing
The filter must be backwashed (=cleaned) at
the specified cycles in order to remove the
filtered dirt from the fine filter screen.
The note electronics is accommodated in
the lid of the handwheel
(2). It uses a beep
to remind every two months that the filter
must be backwashed. Press the
RESET-key
(1) (keep pressed for at least 3 seconds) in
the lid of the handwheel
(2) to switch off the
beep and to restart the two-month time inter-
val.
Clean using the
point-rotation method:
Turn the handwheel
(3) counter clockwise to
rotate the suction nozzle in a spiral shaped
movement around the fine filter
(12) siev-
cloth. They progress upwards with each rev-
olution until the entire sieve cloth has been
sucked up one time. That is reached when
the handwheel
(3) has been turned to its lim-
it. At the same time, the flushing valve
(11)
on the bottom of the filter opens and the
backwash water can exit. During this, pure
water flows from the interior to the outside
through the sieve surface in the suction noz-
zle, pulling along the adhering particles.
After reaching the upper limit stop, turn the
handwheel
(3) clockwise to re-close the
flushing valve
(11). The sieve cloth in the
fine filter
(12) is then sucked through the
suction nozzle a second time. Repeat this
procedure until reaching the lower limit stop.
During this step, the suction nozzle does not
only clean the sieve cloth in the fine filter
(12) but also the transparent filter bell
(6) us-
ing a rubber lip on its exterior side (see
Fig.8).
JPF
+
1½" – 2"
Abb. 8: Funktional description
b
5
a
10
12
11
9
7
6
3
All sizes of filter are backwashed
with treated water. The supply of
treated water to the filter station is
maintained throughout the back-
washing process. Dirty water can-
not get into the clean water side
during backwashing.