JUDO QUICKSOFT-UNO 15
Operation
5.1.2 Setting the blending
In the factory the setting screw of the blen-
ding valve (10) is set to the “Soft” position.
You first have to check what the mixed water
hardness is with this setting. The water
hardness is measured using measuring
equipment (see chapter “Accessories”).
The sample water for measurement and ad-
justment of the water hardness can be
drawn off at the bypass valve (see chapter
“Accessories”) or at a water tap downstream
of the softener.
Ensure that the readjusted mixed water has
reached the drawing off point from the sof-
tener. To correctly compare the measured
values, the samples should be taken from a
normal water flow (1 tap fully opened). Dur-
ing the drawing off no large water quantities
may be drawn off at any other point.
If the required mixed water hardness has
still not been reached, it can be achieved by
turning the blending (10). Recommended
hardness is approx. 10°e.
The setting may have to be changed and re-
measured several times before the required
value is reached.
The softening increases the sodium concen-
tration in the mixed water, depending on the
raw water hardness and the mixed water
hardness set.
In accordance with the current drinking wa-
ter regulations the limit value for sodium in
drinking water is 200 mg/l. This does not ap-
ply to mineral and table water. Their limit val-
ues are considerably higher, some have val-
ues above 1000 mg of sodium per litre.
If the calculated total sodium content ex-
ceeds the value permitted under the Drink-
ing Water Regulations of 200 mg/l, it can be
corrected by increasing the mixed water
hardness accordingly. The sodium content
must be recalculated.
Softer mixed
water
= turn in clockwise di-
rection
Harder mixed
water
= turn in anti-clock-
wise direction
Calculating the sodium content
°e Raw water hardness (ask the
waterworks or measure with a
hardness test device)
- °e Mixed water hardness (meas-
ured value)
= °e Water hardness
x
6.4 mg Na
+
/l x °e
Na-Ionen-exchange value
= mg/l Na ion exchange value Increase
in sodium content due to soften-
ing.
+ mg/l Sodium already in the raw water
(ask the waterworks)
= mg/l Total sodium content in mixed
water
Tab. 1: Calculating the sodium content
Example calculation of the sodium con-
tent
25 °e Raw water hardness
- 10 °e Mixed water hardness
= 15 °e Water hardness
x 6.4
= 96 mg/l Due to softening
+ 10 mg/l From waterworks
= 106 mg/l Total
Tab. 2: Example calculation of the sodium content
To Next Page
Loading...
Need help?
General
