Spare Parts; Maintenance - Atlas Filtri HYDRA Serie Instrucciones De Instalación Y Mantenimiento

INSTALLATION LAY OUT
MUNICIPAL
WATER
MAINS
IN
CV
C
8 - Accessories and spare parts
Accessories and spare parts are available through the Atlas Filtri North America LLC
Authorized Distributors wholesalers and retailers network. In case of difficulties contact
Atlas Filtri North America LLC by e-mail at atlasfiltrinorthamerica@atlasfiltri.com.
Use only original ATLAS FILTRI spare parts.
The use of non-original ATLAS FILTRI spare parts voids the warranty.

9 - Maintenance

Routine maintenance consists in cleaning the filter cartridge with a back-wash in
counter-current operation by opening the bottom drain valve for 15-20 seconds.
If the cartridge is not perfectly clean after washing, repeat the operation with the same
procedure one or more times until the desired cleanliness is reached. If acceptable
cleanliness is not achieved for a good filter operations, follow the procedure as
described below.
- Opening the drain-valve generates a pressure-drop in the filter that pushes the
cartridge downward, automatically reversing water flow from the inside (counter-
current) out of the cartridge (see Fig. E1). This water flow in counter-current carries
particles and substances deposited on the cartridge to the drain.
- Closing the drain-valve after a couple of seconds returns pressure distribution to its
initial conditions and the internal spring returns the cartridge to its service position
(see Fig. E2).
The HYDRA filter features a drain funnel, which is a device designed to protect potable
water from pollution by backflow, in accordance with European standard UNI EN
1717/2002.
The above described operating modes and the back-wash cleaning occur in
excellent conditions with minimum 26 psi (1.8 bar) supply pressure.
In time, routine cartridge cleaning may become difficult due to high dirt loads blinding
the cartridge net.
In this case, additional cartridge cleaning is required as follows:
- shut-off water flow upstream from the filter;
- open the drain-valve and run the water flows until empty;
- open the filter by unscrewing the sump from the head using the supplied wrench;
- remove the cartridge (wearing protective gloves to prevent scratches due to cartridge
materials);
- clean the cartridge under a jet of cold water and use a soft brush to remove impurities;
- insert the clean cartridge back in the sump;
- screw the sump to the head;
- follow the procedure under "FILTER START-UP" to put the filter in service.
PRESSURE
REDUCER
BV
FILTERING
UNIT OF
ANY KIND
BV
BV
CV
ANTI-WATER
HAMMER DEVICE
OTHER UTILITIES
5