Wega Concept - Delivery group

17
Wegaconcept
Technical manual
ENGLISHOperation
Safety thermostat.
Located inside the boiler,
turns off the resistance if the
temperature reaches 169° C.
The thermostat allows you to
avoid damage to the electrical
resistance in case of lack of
water in the boiler.
The thermostat bulb (12) is
located inside a sheath placed
at the center of resistance. The contacts of the thermostat
(13) are connected to the electrical resistance (8).
If the electrical resistance is exposed due to failure to
load water to the boiler, the temperature of the resistance
increases dramatically. At this point, the thermostat
interrupts the power supply to the resistance thus
preventing damage.
5 Delivery group
The delivery group is composed as follows :
the group body (• 1) is made up of a metallic block
which is hooked onto the co ee boiler (2);
the activation of the motor pump and solenoid valve •
(3) located on the side of the group allows the cold
water to enter the boiler (4), consequently the hot
water in the boiler is carried towards the delivery
group (5);
the electrical cartridge heating element (• 6) 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 (• 7) detects the value of the
temperature of the group and sends it to the elec-
tronic control unit;
the activation of the safety thermostat (• 8) prevents
risks if there is a failure in the electronic system.
12
13
14
8
2
3
1
3
7
1
6
4
5
!
Do not replace the heating element with a more
powerful one. Before making any modi cations,
contact the manufacturer.
!
The valves must be checked on a regular basis
as described in the chapter "Controls and
maintenance".
i
To reset the thermostat, press the center button
(14). However, before trying to operate the
machine, verify the causes of the blockade of the
water feeding the boiler
4.3 Anti- ooding device
The cover installed on the
pressure relief valve makes it
possible to collect any water
which may leak from the boiler
due to malfunction and channel
it to the drain pad, by means of a
special hose.