Installation and operating instructions: JUDO JRSF automatic backwashing protection filter JRSF-ATP DN 125 - 200 (time and differential pressure controlled)
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JUDO Wasseraufbereitung GmbH
© JUDO Wasseraufbereitung GmbH
Postfach 380
D-71351 Winnenden
Translation into foreign languages and reproduction, even in excerpt form, is only permitted with special
approval.
Tel. +49 (0)7195-692-0
Fax +49 (0)7195-692-188
Revision level: 24.05.2017
E-mail: [email protected]
judo.eu
18
3.5.2
T-control or TP-control and differential pressure gauge
The time-controlled backwashing (T-control), which must be matched to the local
circumstances and requirements via the weekly timer, but which in general and during
long quiet phases must take place at least monthly, takes priority over differential-
pressure-controlled backwashing!
Differential-pressure-controlled backwashing (TP-control) only takes place during
discharge of filtered water because there is only a differential pressure at the JUDO
JRSF automatic backwashing protection filter when there is a flow of water!
The weekly timers or the backwashing interval are not affected by differential-pressure-
controlled backwashing!
If the differential pressure is still present after the 10th backwash or after approximately
5 minutes, a fault indication is issued and the control unit locks the system!
If the differential pressure does not reduce, the cause must be cleared, the control unit
briefly switched off and the fault indication acknowledged!
Fig. 5: Differential pressure gauge
Zur Steuerung
2,5
0
0
bar
2,5
0
2,5
1,0
0,5
1,5
2,0
+
_
Schalter
I
Gerade Einschraubsteckverbindung
AG 1/4" - Schlauch 6x4mm
Schalter
II
Mini-Kugelhahn
IG 1/4" - AG 1/4"
Reduzierstück
IG 1/4" - AG 1/2"
Winkelverschraubung Schwenkbar
AG 1/4" - Schlauch 6x4mm
Filtered out impurities from the raw water remain on the
permanent filter inserts so that there is an increased differential
pressure between filter input and output which is registered by
the differential pressure gauge.
If the differential pressure reaches the value set at the differential
pressure gauge for microswitch S1 (max. 0.5 bar) and if it exists
for at least 20 seconds, the control unit triggers automatic filter
backwashing.
Optionally, a fault indication can also be registered via
microswitch S2 (approx. 0.3 bar > S1).
