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Nuvia_SelfCleaning-instructions.qxp_Layout 1 10/11/21 09:23 Pagina 4
- for self-cleaning filter with manometers: unscrew one of the manometers just for
a few turns and let all the air being released out the filter until it comes completely
filled with water, then tighten the manometer.
- After the installation, run the tap and let the water flow for at least 5 minutes before use.
Use (check the label on the package to identify the product series
and model)
Refer to Figure C for installation layout.
- In case of use for the filtration of drinking water, do not use for filtration of water that
is unsafe or of unknown quality. Systems certified for cyst reduction may be used on
waters that contain filterable cysts.
- Check for the filter model from the label applied on the product package and from
the legend (Sticker Legend) printed on the package.
- Respect the working parameters shown in the label affixed to the filter housing.
- If pressure exceeds the working conditions, protect the product with a pressure
reducer.
- Keep protected from light. Supply cold water only, with pH in the range of drinking
water.
- Use only products marked as hot water filter for filtration of hot water, up to 176°F (80°C).
- Use only filters with brass head for working pressure up to 15 psi (10 bar).
- Protect from excessive cold or heat: do not expose to temperature below 39°F (4°C)
or above 113°F (45°C).
- Protect from back-flows with a non-return valve.
- Protect from hammering with an anti-hammering device.
- Should the filter be left not in use for more than 1 week remove the cartridge, wipe clean
and store in clean, dry place. Insert the cartridge back into the filter only prior to use.
INSTALLATION LAY OUT
Refer to figure C:
1. Municipal water mains
2. Pressure reducer
3. Anti-water hammer device
4. Other utilities
5. Self-cleaning filter
C
1
Maintenance
Routine maintenance consists in cleaning the filter cartridge with back-wash in counter-
current operation by opening the bottom drain valve for 15/20 seconds.
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 below.
- Turning-on generates a depression in the filter that pushes the cartridge downward,
automatically reversing water flow from the inside (counter-current) out of the
cartridge (Fig. E1). This water flow in counter-current carries particles and
substances deposited on the cartridge to the drain.
The initial quality of the water will not be optimal unless
the tap runs for at least 5 minutes before use.
2
5
3
Ø
V [ l ] min V [ l ] max
1/2"
12
18
3/4"
20
25
1"
35
40
1"1/4
60
65
V [ l ]
4
4
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