EN
18
Note:
It may happen that the air inside the
steam boiler builds up pressure (which may
be detected through the pressure gauge
- item 2, fig. 1) when the water is allowed
to flow in; this “false” pressure must be
eliminated by opening the steam valves
(item 9, Fig. 1).
b) Turning the espresso machine on
Once you have completed these procedures,
check the display. Press enter to confirm that
the preceding procedures are complete.
The installation is now complete and the
espresso machine should be heating to the
operating temperatures.
2) Waiting for the espresso machine to heat to
operating temperature
During this time, it may happen that the
pointer of the coffee boiler pressure gauge
reaches as high as 14-15 bar. This may
happen anytime that the heating element
is in the on condition. In this case it is
necessary to adjust the expansion valve in
such a way that the pressure may never
exceed 11-12 bar. In normal operating
conditions, the coffee boiler pressure gauge
can read anywhere from 0-12 bar.
When brewing, the pressure should be set
to 9 bar.
When the steam boiler reaches operating
temperature, the light on the Tea dispense
button will light.
When the espresso machine is ready to
operate all lights on the keypads will light.
3) Brewing after first installation
Once the first installation procedures are
finished, before proceeding with brewing
coffee, hot water and steam, please follow
these steps:
- Engage the portafilters by inserting them
into each group, brew water through each
group for at least two minutes.
- Being careful to avoid burns, turn on
each steam wand for at least one minute.
- Turn on the 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
4) Installing the portafilters
Install the portafilter(s) by inserting them
into the group and rotate the handle from
left to right. When the portafilters are
inserted properly, you can press any of brew
buttons to start the flow of water through
the portafilter. You should allow hot water
to pass through the empty portafilter(s) for a
few seconds each time, in order to pre-heat
the portafilter.
Note:
It is important to leave the portafilters
installed in the espresso machine when not
in use. The portafilter must remain heated
for the brew process to function correctly.
5) Water pump
Whenever you are brewing coffee, and you
can adjust the pump pressure by turning
the by-pass screw (below the plug located
on the side to which the pump power supply
is connected) clockwise to increase and
counter-clockwise to reduce pressure. Adjust
pressure only when at least one group is
brewing coffee.
Note:
When the heating element in the
coffee boiler is energized, the water will
expand increasing the start-up pressure.
Once the maximum pressure is reached, the
expansion (safety) valve should start working
by discharging a few drops of water, in order
to prevent such pressure from exceeding 11-
12 bar.
In case the pressure exceeds 12 bar,
you must adjust the expansion valve by
unscrewing the cap slightly. If this is not
sufficient, remove the valve and clear away
any calcium deposits. This remedy is valid
