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F1. Temperature sensor (PTC)
F2. 120ºC Safety thermostat
F3. 1,800 W heater resistor
F4. Electrovalves
F5. Upper cover
F6. Lower cover
F7. Water inlet
The
espresso
and soluble product electrovalves are found on a support bolted onto the boiler. The
espresso
EV
is a 3-way valve: a boiler outlet way, a way used to access the
group
, and a third way, which
when at standby, allows the
group
to be set at the environmental pressure.
G1. Coil
G2. Valve
G3. 3rd Way
s
When the machine is brewing coffee, the third way is closed, while the boiler outlet and
group
inlet
communicate.
H1. 3rd Way closed
H2. Outlet to the brewing group
H3. Water inlet from the boiler