16
JUDO QUICKSOFT-DUO
Operation
5.1.3 Control lamps, manual
pushbuttons
5.2
Functional description
The softener has been designed with a
single column, which can be regenerated in
two steps. During regeneration the two filter
containers alternately supply the soft water.
Thus, soft water is always available for use
during regeneration.
With the very short regeneration period of
max. 18 minutes for both regeneration
stages together, conditions can be created
even for maximum continuous drawing off,
which can otherwise only be achieved by
expensive and larger pendulum systems.
A water meter 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 economic salt use according to DIN
EN 14743 and DIN 19636-100. The system
is regularly disinfected, in order to prevent
contamination with germs. The small quan-
tity of chlorine required for this is electrolyti-
cally generated during regeneration from
the drawn in brine.
The filter cases are filled with ion exchange
resin. These are small synthetic resin
spheres on which the calcium ions, which
make the water "hard", are exchanged for
sodium ions. This makes the water soft.
However, the ion-exchange resin only
absorbs a limited quantity of hardness
constituents. Depending on the water hard-
ness, sooner or later it is exhausted. The
exhaustion time is recorded by the water
meter and the regeneration is automatically
initiated. Here diluted brines (sodium chlo-
ride) are used to remove the hardness
constituents from the resin again.
Regeneration automatically takes place
through wear free ceramic discs. The regen-
eration sequence is fixed by the geometry of
the discs and therefore does not have to be
re-entered even in case of a power failure.
If a very high quantity of water is drawn off
(e.g. flush valve) and this leads to a pres-
sure loss in the softener greater than 1.0 bar
(14.5 psi), an overflow valve integrated in
the control head opens in order to allow hard
water to pass by the system and therefore
reduce the pressure loss. However, the
mixed water hardness in the pipe down-
stream of the softener increases for a short
time as a result.
Fig. 10: Control lamps, manual pushbuttons
12
Water flow rate
yellow
13
Net
green
14
Switch-over
yellow
15
Regeneration right
green
16
Trouble
red
17
Regeneration left
green
18
Manual pushbutton to trigger
regeneration
17
16
15
12
14
18
13
