31
Technical manual
ENGLISH
NERO
C:0 M:0 Y:0 K:100
ROSSO
C:0 M:100 Y:100 K:0
VERDE
C:100 M:0 Y:100 K:0
19 Softener
Alternatively to water lter, a resins softener can be
used.
This component has the ability to retain calcium 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 where water is very hard, it will be necessary
to regenerate it more frequently. The same rule can be
applied to locations where there is a large consumption
of hot water for tea or other uses.
Regeneration of the softener
Proceed as follows:
• move levers (B) and (E) from left to right;
• remove the lid by loosening the knob (A);
• release enough water through the pipe (C) to make
room for the salt to be added, based on the model
(see the table on the following page);
• clean any salt or resin residues from the gasket located
on the cover;
• put the cover back in place by screwing the knob
(A) down securely and move the lever (B) back from
right to left;
• let the salt water drain from the little hose (D) until the
water is no longer salty (about 30-60 minutes). The salt
allows the accumulated mineral salts to be released;
• switch the lever (E) from right to left back to its initial
position.
Softner model Amount of salt
8 liters 1,0 kg
12 liters 1,5 kg
16 liters 2,0 kg
In order to keep the softener, and hence the machine,
in perfect operating condition, it is necessary to
regenerate it regularly, based on use of the softener and
hardness of the water used. The table below shows the
quantity of softened water based on hardness in various
units of measure:
• °f: French degree
• °d: German degree = 1,8 °f
• mg CaCO
3
For further information on softener installation, start-
up and regeneration, refer to the instruction manual.
Amount of softened water based on hardness
°f 30 40 60 80
salt°d 16,5 22 33 44
mg CaCO
3
30 40 60 80
8 liters 1000 lt 900 lt 700 lt 500 lt 1,0 kg
12 liters 1500 lt 1350 lt 1050 lt 750 lt 1,5 kg
16 liters 2100 lt 1800 lt 1400 lt 1000 lt 2,0 kg
B
E
A
C
D
!
The build-up of lime scale deposits in the hydraulic
circuit and boiler inhibits thermal exchange, thus
compromising proper operation of the machine.
Heavy incrustation of the boiler may cause long
machine shutdowns and invalidate the warranty
in any case, because it indicates regeneration has
been neglected.