15
EN
5.4
Functional and warranty
conditions
Softening units require regular functional monitor-
ing, maintenance and replacement of important
parts after certain intervals.
The amounts of metering substance and regen-
erative necessary are subject to the level of con-
sumption, which depends on operating conditions.
Softening units must be cleaned regularly and also
disinfected if necessary. See this installation and
operating manual for the maintenance intervals.
We recommend that you enter into a maintenance
agreement.
During pressure fluctuations and surges, the sum
of the pressure surge and the standing pressure
must not exceed the nominal pressure. The posi-
tive pressure surge must not exceed 2 bar and the
negative pressure surge must not be less than 50%
of the self-adjusting flow pressure (see DIN 1988-
200/3.4.3).
Continuous operation of the softening unit with water
containing chlorine or chlorine dioxide is possible if
the concentration of free chlorine/chlorine dioxide
does not exceed 0.5 mg/l.
Continuous operation with water containing chlorine
or chlorine dioxide can lead to premature ageing
if an organic ion exchange material is used. A
softening unit can reduce the concentration of free
chlorine and chlorine dioxide. In other words, the
concentration in the outflow of a softening unit is
generally considerably lower than in the inflow.
In order to benefit from the product's connectiv
-
ity-based features, one of the following must be
present at the installation site:
●
A GSM signal strength of -40 to -89 dB
●
A WLAN signal strength of -20 to -89 dB
●
An RJ45 network socket connected to the net-
work within 1.5 m of the device
5.5
Installation
The pipeline network must be rinsed before the
product can be installed.
Use corrosion-resistant pipe materials for instal-
lation. Pay attention to corrosion-causing chem-
ical properties when different pipe materials are
combined (mixed installation), even in the inflow
direction upstream of the product.
A protective filter must be installed in the direction of
flow 1 m upstream of the product. The filter must be
functional before the product is installed. This is the
only way to ensure that dirt and corrosive products
do not enter the product.
Suitable test sample extraction points must be
installed upstream and downstream of the product
in accordance with the specifications of VDI 6023.
The hose attached to the overflow point of the
regenerative container and the rinsing water hose
must be routed at an incline to the sewage system
or connected to a pump.
According to EN 1717, the rinsing water hose and
the overflow hose must be connected to the sewage
system at a specified distance above the highest
possible waste water level. (Distance is greater than
the diameter of the drain pipe).
Correct water treatment with BWT Smart Mineral
(3 litres) significantly reduces the corrosiveness
and liming tendency of the water. However, the
operating and installation conditions and the quality
of the material are further important factors that can
influence the effectiveness.
The water treatment measures must also be
adapted to suit the expected corrosion type or the
corrosion type that has already occurred, as well as
the installation and operating conditions. (See also:
DIN 50930 Corrosion of metallic materials inside
pipelines, tanks and apparatus under corrosion load
by water and DIN-EN 12502 Corrosion likelihood in
water pipe systems).
A water analysis and expert consultation are
essential.
Summary of Contents for Perla hybrid
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