Scopy Of Supply; Use; Filtration; Pressure Reducer - BWT Protector mini HWS C/R Installation And Operating Instructions Manual

EN

1. Scopy of Supply

Protector mini HWS consists of:
1. top section in brass incl. pressure reducer
2. connection screw joints and seals, except
Art.-Nr. 810599
3. bottom part in plastics, except Art.-Nr. 810560
(bottom part in brass)
4. filterelement in stainless steel
5. rinsevalve
Pressure reducer consisting of:
6. locking screw
7. rotary knob
8. display for back pressure setting value
9. spring cap
10. slide ring
11. pressure reducer element
12. ¼" plug for connecting of an optional
Manometer.
filter HWS C/R
Spare parts:
Manometer
(Art.-Nr. 333800)
Replacement filter ele-
ment (Art.-Nr. 072843)

2. Use

2.1 Filtration

The Protector mini HWS is intended for the filtra-
tion of drinking and service water. It protects the
water pipes and the connected water-bearing
system components from functional defects and
corrosion damage by foreign particles such as
rust particles, shavings, sand, hemp etc. The filter
cannot be used with chemically treated circulation
water, process water and cooling water for flow
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1
12
2
3
bottom bottom
part in part in
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brass plastics
H/R C/R
4
cooling. A coarse dirt separator must be installed
upstream for waters with coarse dirt particles.
The filters are not suitable for oils, fats, solvents,
soaps and other lubricating media. Neither are
they suitable for the separation of water-soluble
substances.

2.2 Pressure reducer

The integrated
downstream from the filter serves to reduce pres-
sure and regulate a desired back pressure, pre-
dominantly in the domestic water supply plant.
It keeps the regulated back pressure almost con-
stant, even when the prepressure fluctuates bet-
ween, for example, 16 bar and the set back pres-
sure, e.g. 3 bar. A uniform, not too high pressure
preserves fittings and devices in the entire dome-
stic water installation, helps to save up to 50 % of
water and minimises noise evolution. We recom-
mend the installation of a pressure reducer from 4
bar pre-pressure.

3. Function

3.1 Filtration
The raw water flows through the raw water inlet
into the filter and then from the outside to the in-
side through the filter element to the pure water
outlet. The foreign particles larger than the filter
rating are retained on the outside of the filter fa-
bric. Clean water enters into the pipeline system.
If as a result of the increasing contamination of
the filter fabric the water pressure decreases per-
ceptibly, the filter element must be replaced. BUT
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AFTER 6 MONTHS AT THE LATEST!
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8
3.2 Pressure reducer
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The pressure reducer works according to the prin-
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ciple of the relieved single-seat valve. It is cont-
rolled starting from the back pressure via a large-
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dimensioned membrane and a pressure spring, the
tension and thus the back pressure of which can be
changed with the rotary knob (7). The display (8)
shows the respective back pressure setting value.

4. Installation conditions

Caution: The plant must be set up according to
the installation and operating instructions of the
AVB Water V, Sec. 12.2. by the water supply com-
pany or an installation company entered into the
installer directory of a water supply company.
pressure reducer installed