24
EN
IMPORTANT
When you activate the motor pump by
pressing the specific button, it turns out
that pressure is also directly given to the
coffee boiler.
If you activate the motor pump when the
appliance is cold, a start-up pressure of
8-9 bar will develop; thus, once heating
elements start working and water tem
-
perature increases, the liquid will expand
increasing also start-up pressure by about
3 bar, for a total pressure of 11 bar.
Once operating pressure is reached, the
expansion (safety) valve should start work
-
ing by discharging a few drops of water,
in order to prevent such pressure from
exceeding the value of 12 bar.
If pressure exceeds 12 bar, you must
adjust the valve by unscrewing the cap
slightly. If this is not sufficient, remove
the valve itself and clear away any cal
-
cium deposits. This remedy is valid if the
valve remains open in drain position (i.e.
pressure cannot increase up to approx. 8
bar) too.
If the appliance has not been used for
more than 8 hours or, in any case, after
long periods of being kept idle, in order
to be able to use it to the relevant full
potential it is necessary to perform some
cleaning cycles before starting brewing
beverages as follows:
- Groups: after having engaged the por
-
tafilters, brew water through each of them
for at least two minutes
- Being careful to avoid burns, turn on
each steam wand for at least one minute.
- Turn on hot water valve for the time
necessary to allow the following quantities
of water to be brewed:
At least 1 liter for a 1-2 group machine
At least 2 liters for a 3 group machine
At least 3 liters for a 4 group machine
If the appliance is not going to be used
for long periods of time, it is advisable to
follow these safety indications:
- Disconnect the appliance from water
mains or interrupt water connection via a
mains tap.
- Disconnect the appliance from electri
-
cal mains.
• Draining the steam boiler:
We recommend to fully drain the steam
boiler YEARLY by means of the specific
drain cock located on the side of the boiler
or under it.
•
Depressurizing the steam boiler:
Press and hold the encoder knob to set
the espresso machine to “OFF”, then
push down the steam lever in order to
depressurize the steam boiler.
