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ROUTINE MAINTENANCE
ROUTINE MAINTENANCE OF THE SELF-CLEANING FILTER
Routine maintenance consists in cleaning the filter cartridge with back-wash in counter-current operation by opening the drain
valve for 15/20 seconds. Back-wash in counter-current is performed as indicated in the "TECHNICAL SPECIFICATIONS"
section. The minimum required flowrate for effective backwashing is 2000 l/h (RAH) or 2400 l/h (RLH).
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 extraordinary
maintenance procedure as described here following.
ROUTINE MAINTENANCE OF POST-FILTERS (DUO AND TRIO MODELS)
For correct maintenance, follow the directions in the cartridge instructions.
Notes for a proper routine maintenance:
Note 1: in case of HYDRA BIG install a manometer upstream the filter and a second one downstream, then carry-on the
routine maintenance before the pressure difference between the two manometers exceeds 1.5 bar.
In case of HYDRA BIG M, carry-on the routine maintenance before the pressure difference between the inlet and outlet
manometers exceeds 1.5 bar.
Note 2: for mains water, routine maintenance is recommended at least once a week, repeating the operation 2 or 3 times
consecutively, if necessary, after letting suspensions decant for several seconds.
Note 3: for well water, routine maintenance is recommended several times a week, repeating the operation 2 or 3 times
consecutively, if necessary, after letting suspensions decant for several seconds.
WARNING. During cleaning operations water (not filtered) is still supplied. We suggest you interrupt the water supply by
closing faucets or the by-pass faucet (if installed) downstream from the filter to reach maximum pressure in counter-current
and the best cartridge cleaning results.
EXTRAORDINARY MAINTENANCE OF THE SELF-CLEANING FILTER
Over time, routine cartridge cleaning may become difficult due to clogging-up of the cartridge net.
In this case, extraordinary cartridge cleaning is required as follows:
- shut-off water flow upstream from the filter;
- release the filter pressure by opening a tap downstream the filter;
- open the filter by unscrewing the bowl from the head using the supplied spanner;
- remove the cartridge (wearing protective gloves to prevent scratches due to worn net);
- clean the cartridge under a jet of cold water and use a soft brush to remove impurities;
- insert the clean cartridge in the bowl; - screw the bowl onto the head;
- follow the procedure under "FILTER START-UP" to put the filter in service.
WARNING: at re-start after every maintenance operation, when the filter's bowl is unscrewed from head, change the o-ring
with a new one and carefully lubricate with original lubricant LubriKit+ before tightening the bowl to the head. Make sure that
there are no water leaks from the product and especially control the tightening beteween the housing head and the housing
bowl. Continue checking that the tightening is good and there is no water leakage for 48 hours following the installation and
start-up. In case of leakage, open the housing, remove the o-ring from te bowl, place a new o-ring and apply lubricant, then re-
tighten the bowl to head and repeat the leakage check as above. Use only original Altas Filtri o-rings, otherwise the warranty
is void. Ask your Vendor for original o-rings, LubriKit+ and other spare parts.
Remark: after the maintenance, slowly turn on a water supply (tap) downstream the installed unit and let the water flow for
at least 5 minutes before the use.
WARNING: for persistent encrustations onto the filter net or if the pressure difference between the two manometers remains
above 1.5 bar after cleaning the filter, replace the filter cartridge with a new one.
WARNING: filter cartridges and the transparent bowl have an average working life, for that reason we recommend replacing
RLH plastic net cartridge at least every 24 months and RAH stainless steel net cartridge at least every 48 months. The filter
bowl must be replaced with a new one at least every 5 years.
DIRECTIONS FOR DISPOSAL: In compliance with the Reach regulation, the reference SCIP family of this product shall
be indicated on the packaging label. Please find the relevant SCIP code on the website www.atlasfiltri.com. Dispose of the
product at the end of its service life in compliance with local and national regulations, using the appropriate EWC code. A table
listing all materials used is available for download at www.atlasfiltri.com/downloads.
TROUBLESHOOTING
HYDRA BIG filters are constructed following strict quality controls and are subject to stringent efficiency and resistance tests.
See here following a series of problems that may occur due to incorrect installation or maintenance or improper use, possible
negligence or due to filter or filter parts comsumption.
PROBLEM
Water does not run from faucets
Unfiltered water runs from
faucets
The cartridge does not clean
during self-cleaning operation
Water leaks between the filter
head and bowl.
Water leaks from connections
between pipes and from the
sides of the filter
Water leaks between the bowl
and drain valve
DECLARATION OF COMPLIANCE
Manufacturer's address: ATLAS FILTRI srl - Via Pierobon 32, 35010 Limena (PD) - ITALY - HYDRA BIG filters are constructed
in accordance with the following European directives: UNI EN 1717 - Protection against pollution of potable water in water
installations and general requirements of devices to prevent pollution by backflow
Warranties
- Keep the sticker placed onto the package to identify the product.
- In EU countries, the applicable warranty terms are those indicated in Directive 85/374/EEC as amended and in Directive
1999/44/EC as amended. For extra UE Countries, the product is granted by a limited warranty for 12 months from the date of
purchase proven by a regular receipt. The liability of Atlas Filtri S.r.l. is limited solely to the replacement of proven defective
product, excluding shipping, installation labour or other repair costs. No warranty is given on filtration or any other performance
as it may vary with local water conditions. For any controversy whatsoever, Atlas Filtri S.r.l. elects the Court of Padova as the
competent Bar, with the application of the Italian Regulations and Laws.
CAUSE
- cartridge clogged;
- Bowl broken;
- cut-off valves and/or
By-pass closed.
- cartridge broken;
- spring broken;
- cartridge gasket ruined;
- by-pass valve open.
- insufficient pressure in
the bowl;
- cartridge not correctly
positioned in the bowl.
- Bowl o-ring ruined
- sealing tape insufficient
- drain valve gasket
damaged
REMEDY
- clean the cartridge following the extraordinary
maintenance procedure;
- replace the bowl and o-ring;
- open the closed cut-off valve or by-pass.
- replace the cartridge;
- replace the spring;
- replace the cartridge gasket;
- close the by-pass valve.
- check the drain pipe: if pinched or bent, remove the
problem;
- rotate the cartridge clockwise or Counter-clockwise so
that it moves vertically without strain in the bowl.
- replace the o-ring.
- add a few turns of sealing tape
- replace the gasket.
- 8 -
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