16
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 service agreement.
During pressure fluctuations and surges, the sum
of the pressure surge and the standing pressure
must not exceed the nominal pressure. The pos-
itive 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 1988200/3.4.3).
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 location:
●
GSM signal strength between -40 to -89 dBm
●
Wi-Fi signal strength between -20 and -89 dBm
●
Network connection with RJ45 socket within
1.5 m
6
Installation
The following conditions must be met before the
product can be installed:
●
The pipeline network must be rinsed.
●
Corrosion-resistant pipe materials are used for
installation. Pay attention to corrosion-causing
chemical 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 corro-
sive particles do not enter the product.
●
Suitable taps for sampling 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
under corrosion load by water inside of pipes,
tanks and apparatus
– DIN EN 12502: Guidance on the assessment
of corrosion likelihood in water distribution and
storage systems
●
A water analysis and expert consultation are
essential.
