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10
Recommended working data of the machine
Pump pressure: 9 Bar
Boiler pressure: 1 Bar
Opening pressure of boiler Relief valve: 1.5 Bar
Expansion valve opening Pressure: 11 Bar
COFFEE-DOSE Setting on Automatic Model.
Hold the star key (pos.1) pressed until all LED’s are switched on the keyboard (group
on the left). Put filter holder with perfectly ground dosed coffee in the group. Place the
cup for which you want to set the dose under the coffee group. Push the key related
to the selected dose and push it again when the correct quantity of coffee is reached.
Repeat this for dose setting of each key. Once the dose for one brewing group is set, the
same dose will be simultaneously set in the other group; however, for a more accurate
dosing, we recommend to program each group keyboard individually. The programming
operation between a key and the other has to be completed within 30 seconds,
otherwise the memory will be lost. For partial keyboard dose-setting push star key again
after the last selected dose key has been programmed.
Start up
Turn the main switch to pos. “2”. The filling process will proceed automatically.
When the boiler is filled, turn the main switch to pos. “1” to activate the heating
element’s electrical feed.Wait until boiler pressure reaches maximum working pressure
(approx. 1 bar).Open steam valve for a few seconds. Be sure Boiler pressure reaches
approx. 1 bar after releasing steam valve.
The boiler pressure is controlled by
a pressure switch. Turn screw “A”
for boiler pressure adjustment.
Prepare one dose of coffee. As coffee flows,
check the correct pump pressure (approx.
9 bar) on the pump pressure gauge. Pump
pressure can be adjusted using the screw “A”
positioned on the pump’s by-pass.
A
A
