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4. Installation pre-requisites
Heed local installation regulations, general gui-
delines and technical data. Install filters in cold
water pipes upstream from the objects to be pro-
tected.
Caution: The installation site must be frost-
proof and avoid disruptive influences (e.g.
solvent vapours, heating oil, washing alkalis,
all kinds of chemicals, UV radiation and heat
sources above 40 °C). Caution: keep plastic
components free from oil and fat, solvents and
acids and base cleaners.
5. Installation
5.1 Check the direction of flow and change if
necessary
In the delivery state the direction of flow is from
left to right (heed flow direction arrow – visible on
the brass body below the handle). It is possible
to change this prior to filter installation – without
connection screw joints and manometer:
- Turn stopcock/
unlocking device (6)
to the ‘open‘ position
(90° clockwise)
- Open lever (1) by
approx. 80° - 90°
- Remove the black
cover on the reverse
of the filter
- Loosen bolt
(anti-rotation device)
- Rotate the brass
housing by 180°
- Reinsert the bolt
(anti-rotation device)
The direction of flow is
now from right to left.
5.2 Install filter
Mount the screw connection including the flat gas-
ket enclosed with the filter – the screw connection
with the backflow preventer must be positioned
on the input side (only Cillit C1 HWS). Seal the
manometer (5) which is also enclosed (only Cillit
C1 HWS). Then install the filter according to the
nominal width into the similarly dimensioned cold
water pipe and upstream from the objects to be
protected.
5.3 Install wall mounting
The wall mounting is
pre-installed on the fil-
ter. It is fixed to the wall
using the supplied bolts
and dowels (2 x KA40 or
Ø 6 mm) in the wall.
- Installation of wall
mounting only after
installation of the
filter
- Distances for
installation of wall
mounting according
to the sketch
- Caution: If filter * is
closed, then posi-
tion above in wall
mounting.
- A hygienic vault
(filter cup + filter
e lid) can
be suspended in
the mounting
- The distance from
the wall varies
between 80 - 120
mm. Two-part wall
mounting.
two part wall
mounting
Oblong hole for setting the distance
from the wall 80 mm - 120 mm
Hygienic
vault can be
suspended in the
mounting
1. Scope of supply
Cillit C1 consisting of:
1 Lever (handle)
2 Cap
3 Connection screw joints and seals
3A Connection screw joints and seals, with
a backflow preventer on the input side (with
control screw or facility for the connection of
an inlet pressure gauge, only Cillit C1 HWS)
4 Supporting core incl. hygienic vault (= filter
cup + filter element)
5 Back pressure manometer (only Cillit C1
HWS)
6 Stopcock/unlocking device
7 LED electronic filter change display (visual
signal only) 2xAAA batteries included
Pressure reducer (only Cillit C1 HWS, Fig. 4)
consisting of:
8 Spring cap
9 Display for back pressure setting value
10 Locking screw
11 Rotary knob for pressure reducer
12 Pressure reducer element
13 Slide ring
To be ordered separately:
Replacement filter element (in pack of 2)
Order number DE: 10441 (100 µm)
Order number AT: 810441 (100 µm)
Filter element change every 6 months!
Or for optimum hygiene: hygienic vault = filter cup
+ filter e individually packaged lid, Repla-
cement without touching components exposed to
water.
Order number DE: 20440 (100 µm)
Order number AT: 820440 (100 µm)
Hygienic vault change every 12 months!
2. Purpose
2.1 Filtration
The Cillit C1 is intended for the filtration 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 cooling. A coarse dirt se-
parator must be installed upstream for waters with
coarse dirt particles. The filters are not suitable for
oils, fats, solvents, soaps and other lubricating me-
dia. Neither are they suitable for the separation of
water-soluble substances.
2.2 Pressure reducer (only Cillit C1 HWS)
The integrated pressure reducer installed
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 cons-
tant, even when the pre-pressure 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 recommend the installation of a pressure redu-
cer from 4 bar pre-pressure.
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 company or an installation company
entered into the installer directory of a water
supply company.
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
perceptibly, the filter element must be repla-
ced. BUT AFTER 6 MONTHS AT THE LATEST!
The electronic LED change display indicates
this in a timely manner (see 7).
3.2 Pressure r backflow preventer
(only Cillit C1 HWS)
The pressure reducer works according to the
principle of the relieved single-seat valve. It is
controlled starting from the back pressure via a
large-dimensioned membrane and a pressure
spring, the tension and thus the back pressure
of which can be changed with the rotary knob
(11). The display (5) shows the respective back
pressure setting value. The backflow preventer
only opens in the direction of flow when water is
removed and is tightly sealed in idle position or
counterpressure.
