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9. Maintenance
Filter
All technical equipment requires regular mainte-
nance. According to DIN 1988, maintenance must
be carried out by expert technical staffs who also
replace the parts subject to wear and tear. We there-
fore recommend closing a maintenance contract.
Maintenance must be carried out once a year, or
twice a year for communal installations. It is to be
carried out by the installer or manufacturer.
Battery Check
Push the operation button one time shortly.
OK: 10 x BEEP and 10 x FLASH
If no confirmation or less then 10 signals, the bat-
teries has to be changed. Average lifetime (depen-
ding on the quality of the batteries): about 6 years.
To guarantee the right time cycle, batteries have to
be changed with the filter element.
Change of batteries
To change the batteries remove the cover and re-
lease the electronic to the inside. Open the bottom
of the electronic and change the batteries (2 pieces,
1.5 V AA). Reassemble the filter in reverse order
and start up the filter (7. Start up).
The controller in your product contains durable
batteries. It is not allowed to give batteries in the
household waste. You are committed to replace the
batteries to a qualified collecting point or send them
back to BWT (free of charge). Used batteries contain
useful raw materials, these can be recycled.
10. Warranty
In the event of malfunction during the warranty peri-
od (6 months) please contact our Customer Service
and state the filter type (see Specifications or rating
plate). Any warranty work may only be carried out
by our Customer Service.
Warranty work to be carried out by an external
specialist firm requires the express consent of our
Customer-Service-Manager.
11. Operator responsibility
You bought a high quality product with a long life
time. To assure the function every technical equip-
ment needs to be serviced.
Regular back washing and checks of the filter, as
well as leak tightness checks has to be done by the
operator.
According to DIN 1988 Part 8 appendix B the filter
has to be regularly back washed (not later than 2
months).
Maintenance periods (change of parts)
• Sealing every 3 years
• Filter element every 3 years
• Transparent cylinder every 15 years
All technical equipment requires regular mainte-
nance. According to DIN 1988, maintenance must
be carried out by expert technical staffs who also
replace the parts subject to wear and tear. We there-
fore recommend closing a maintenance contract. It
is to be carried out by the installer or manufacturer.
12. Maintenance Guideline
Drinking water is a comestible. Hygiene standards
have to be proven during maintenance work.
Wear parts 3/4” - 5/4”:
• Sealing-set Art. No. 084051
• Filter element Art. No. 084047
• Transparent cylinder Art. No. 084058
Close stop valves before and after the filter and
place a collecting basin underneath. Open turning
knob counter-clock wise. Unscrew the transparent
cylinder and remove it. Remove filter element and
dispose it. Change sealing.
Moisten every sealing before refitting. Replace the
transparent cylinder per hand and check if nothing
is leaking. Backwash filterelement.
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