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Operation and maintenance manual
Safety instructions
Filtration process
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1. Read this Operation and Maintenance Manual before
working the automatic filtration station.
2. Make sure the filter is not pressurized before doing
any maintenance.
3. Handle with care while transporting or installing the
product.
4. Avoid any direct contact of water to electrical parts
during the installation.
5. Check that the operating conditions do not exceed the
recommendations of the manufacturer.
6. Check before installing that the pressure in the net-
work does not exceed the maximum working pressure
(10 bar).
7. The system can activate automatically the backwash
mode at any time without previous notice.
8. Use original spare parts for maintenance.
9. JIMTEN will take no responsibility for any modifica-
tions or use of non original spare parts.
ATTENTION
Before opening a single filter for maintenance,
make sure that it is not pressurized.
During the filtration phase, dirty water flows through the
inlet HDPE manifold and goes through the backwash
hydraulic valves into the Filtmaster disc filters, passing
through the discs to the outlet HDPE manifold.
Description of the backwash process
1. The controller transmits an electrical command to the
solenoid of the first filter according to either differen-
tial pressure or time.
2. The solenoid actuates on a hydraulic relay mounted
on the hydraulic backwash valve, changing the hy-
draulic valve from filtration to backwash position.
3. Filter number 1 is backwashed using clean water from
the outlet HDPE manifold that has been filtered by
the other filters in the automatic filtration station. Dir-
ty water and impurities flow out through the drainage
connection of the backwash valve to the HDPE drai-
nage manifold.
4. When backwash of filter number 1 is completed, ac-
cording to the program set up by the user, the filter
comes to filtration position.
5. Filter number 2 comes into backwash mode and the
process is repeated untill all the filters in the automa-
tic filtration station have been cleaned.
6. When all the filters have been cleaned, the automatic
filtration station goes back to filtration mode until the
next cleaning cycle starts.
Hydraulic connections
Dirty water
No automatic hydraulic
control valve should be
installed at the entrance
of the automatic filtration
station because it could
affect working pressure
conditions. If needed, we
recommend installing a
manual control valve.
