16
JUDO QUICKSOFT-UNO
Operation
5.1.3 Control lamps, manual push-
buttons
5.2
Functional description
The Softener is a single column system, i.e.
there is a filter case with ion-exchange resin
beneath the control head. Therefore, this
Softener has a very compact design. The
ion-exchange resin in the filter case consists
of small synthetic resin spheres, at which
the calcium and magnesium ions, which
make the water "hard", are exchanged for
sodium ions. This makes the water "soft". An
adjustable quantity of unsoftened raw water
is added to the control head in order to ob-
tain the required mixed water hardness
downstream of the Softener.
However, the ion-exchange resin only ab-
sorbs a limited quantity of hardness constit-
uents. Depending on the water hardness,
sooner or later it is exhausted. A water me-
ter installed in the soft water pipe precisely
records the quantity of soft water produced
and triggers regeneration according to the
raw water hardness set at the electronics.
The regeneration is carried out with eco-
nomic salt used according to DIN 19636.
Here diluted brines (sodium chloride) are
used to remove the hardness constituents
from the resin again.
With the regeneration the system is also
regularly disinfected, in order to prevent
contamination with germs. The small quanti-
ty of chlorine required for this is electrolyti-
cally generated during regeneration from
the drawn in brine.
Regeneration automatically takes place
through wear free ceramic disc valves. The
regeneration sequence is fixed by the geom-
etry of the discs and therefore does not have
to be re-entered even in case of a power fail-
ure.
For design reasons, only untreated water is
available during regeneration, to this end an
overflow valve integrated in the control head
opens when required. As the whole regener-
ation including rinsing out the used brine on-
ly takes around 9 minutes, this typical prop-
erty of a single column system is hardly
noticeable.
Fig. 11: Control lamps, manual pushbuttons
12
Water flow rate
yellow
13
Net
green
14
Switch-over
yellow
15
Regeneration
green
16
Trouble
red
17
Service
green
18
Manual pushbutton to trigger regen-
eration
17
16
15
12
13
18
14
