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of
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TECHNICIANS manual
ENGLISH
2.6.1 Coffee boiler
Each dispensing group is equipped with a thermally
insulated coffee boiler (
1
) for coffee hot water dispensing.
Heat is provided by an electric heating element (
2
).
The boiler includes a tem-
perature sensor (
3
) and a
safety thermostat (
4
).
The temperature sensor
(
3
) regulated and stabilizes
the water temperature in-
side the coffee boiler. The
safety thermostat (
4
) in-
tervenes in the event of a
malfunction of the heating
system. After reaching 150
°C the safety thermostat
intervenes to disable the heating element and to report
the problem on the display.
2.6.2 Services boiler
The totally insulated services boiler (
5
) is used to
produce steam for hot water, for milk frothing with the
cappuccino maker or auto steamer (optional), and to
heat/foam beverages.
The water in the boiler is heated by an electric heat-
ing element (
6
).
5
6
4
3
2
1
2.6.3
Dispensing group
The dispensing group (
A
) is made up of a metallic
block which is hooked onto the coffee boiler (
B
).
The features of the group are summarized as follows:
•
the activation of the motor pump and solenoid valve
(
C
) located on the side of the group allows the cold
water to enter the boiler (
D
), consequently the hot
water in the boiler is carried towards the dispensing
group (
E
);
•
the electrical cartridge heating element (
F
) installed
in the group is controlled by an electronic control unit
and allows the group to be heated at a programmed
temperature;
•
the temperature sensor (
G
) detects the value of the
temperature of the group and sends it to the elec-
tronic control unit;
•
the activation of the safety thermostat (
H
) prevents
risks if there is a failure in the electronic system.
H
C
G
A
F
A
B
C
D
E
