TECHNICIANS' manual18 of 104
2.10.13 Volumetric dosing
The volumetric dosing device that is installed on the SAE ver-
sions, measures the quantity of water sent to the group in
order to dispense coffee.
The dispenser generates electrical im-
pulses which are sent to the electronic
control unit.
These impulses are read by the control
unit and counted while the dose is be-
ing programmed.
TheashingLEDlight(4) indicates that the electrical impulse
has been sent from the dosing device to the control unit.
2.10.14 Electronic pushbutton panels
The electronic pushbutton panels on the SAE versions allow
the coffee doses to be selected and programmed. They are
connected to the electronic control unit.
To use and programme these, please consult the user manual.
2.10.15 Cup warmer
The cup warmer device (5) warms the cups before they are
used.
In some versions it is possible to adjust the temperature by
following the instructions on the user manual.
5
2.10.16 Hot water spout
The hot water nozzle is connected to a heating unit suction
hose. Depending on the model, hot water can be dispensed
in two ways:
• Manually: by turning the adjustment knob on the front of
the machine.
• Automatically: by selecting a button connected to a sole-
noid valve.
2.10.17 Steam nozzle
The steam nozzle is connected to the top of the heating unit.
Adjust the dispensing setting by turning the knob on the front
of the machine.
2.10.18 Cappuccino maker (optional)
The cappuccino maker is installed on a steam
nozzle. This device can both heat and froth the
milk.
To adjust and clean the cappuccino maker, follow the instruc-
tions in the user manual.
4
2.10.19 Water lter
In the mains water, non-soluble salts are
present which cause limestone to form in
the heating unit and other parts of the
machine.
Drinking water can also contain heavy
metals and substances, such as chlorine
which are harmful to health.
The lter makes it possible to eliminate
or substantially reduce the presence of
these mineral salts.
Thecartridgecontainedinthewaterlter
must be replaced at the frequency speci-
edbythemanufacturer.
To use and maintain the water lter, follow the in-
structions provided in para. "8.4 Water Filter Main-
tenance" on page 64.
2.10.20 Water softener
The resin softener can be used as an alternative to the water
lter.
This component has the property of retaining the calcium
contained in the water. For this reason, the
resins become saturated after a certain pe-
riod and must be regenerated with coarse
kitchen salt (NaCl, sodium chloride) or spe-
cial water softening salt. It is very important
to regenerate the softener within the estab-
lished times. However, in locations where
the water is very hard, it will be need to be
regenerated more frequently. The same rule
can be applied to locations where there is
a large consumption of hot water (for tea,
etc.).
To use and regenerate the water softener, follow
the instructions provided in para. "8.5 Softener re-
generation" on page 66.
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