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7.
SOFTENER (optional)
Mains water contains insoluble salts, which cause the build-up of lime scale deposits in the boiler and in other
parts of the machine. The softener makes it possible to eliminate or substantially reduce the presence of these
mineral salts. The resin softener has the property of retaining the calcium contained in the water. For this
reason, the resins become saturated after a certain period and must be regenerated with coarse kitchen salt
(NaCl, sodium chloride) or special water softening salt. It is very important to regenerate the softener within
the established times. The regeneration is to be done regularly every 15 days. However, in locations with very
hard water, it will be necessary to regenerate more frequently. The same is true of places in which there is a
large consumption of hot water for tea or other uses.
Softener regeneration
Proceed as follows:
•
move the levers (2) and (5) from left to right;
•
remove the lid by loosening the knob (1);
•
release enough water through the pipe (3) to make room for the amount of salt as required depending
on the model (see table);
•
clean any salt or resin residue from the gasket located on the lid;
•
put the lid back in place by screwing the knob (1) down securely and move the lever (2) back from
right to left.
•
let the salt water drain from the small tube (4) until the water is no longer salty (about 30-60 minutes).
The salt allows the accumulated mineral salts to be released;
•
move the lever (5) from right to left back to its initial position.
Softener
Amount
model
of salt
8 litres
1.0 kg
12 litres
1.5 kg
16 litres
2.0 kg
The build-up of lime scale in the hydraulic circuit and boiler inhibit thermal exchange, thus
compromising proper operation of the machine. Heavy incrustation in the boiler may cause
long machine shutdowns and in any case invalidate any guarantee, because this symptom
indicates that regeneration has been neglected.
In order to keep the softener and hence the ma-
chine in perfect operating condition, it is necessary
to perform regeneration periodically based on the
use of the softener and the hardness of the water
that is used.
The table alongside shows the quantity of softened
water based on the hardness of the water in the
various units of measure:
- f°: French degree
- D°: German degree = 1.8 °f
- mg CaCO
3
For further information on installation, start-up and regeneration of the softener, refer to the relative instruc-
tion manual.
74
1
2
3
5
4
Amount of softened water based on hardness
f°
30°
D°
16.5°
mg CaCO
30
3
8 litres 1000 lt 900 lt 700 lt 500 lt 1.0 kg
12 litres 1500 lt 1350 lt 1050 lt 750 lt 1.5 kg
16 litres 2100 lt 1800 lt 1400 lt 1000 lt 2.0 kg
40°
60°
80°
22°
33°
44°
40
60
80
salt
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