Automatic Washing System; Preinfusion; Programming Of The Machine; Programming Coffee Doses - La San Marco 20/20 CLASSIC Serie Emploi Et Entretien

Short programmed dose
Long programmed dose
Continuous manual dose

6.4 Automatic washing system

The automatic washing system allows the cleaning of coffee brewing groups.
Insert the portafi lter with blind fi lter in the brewing group.
To start the washing cycle press the continuous dose key
for a few seconds. The two keys are blinking and the cycle starts automatically.
At the end of the washing cycle the brewing group returns to its normal operating conditions.
Repeat the washing cycle for all the other groups in the same way.

6.5 Preinfusion

Activation of the preinfusion:
lights up to indicate that preinfusion is enabled. Switch the machine off and on again to restore normal
operation with preinfusion during coffee brewing.
Preinfusion deactivation:
lights up to indicate that preinfusion is disabled. Switch the machine off and on again to restore normal
operation without preinfusion during coffee brewing.

7. Programming of the machine

7.1 Programming coffee doses

A. Access to programming.
Move the main switch 1 to position <<zero>> (machine off). Holding the fi fth key
pressed, move the main switch 1 to position 1 (machine on). After a few seconds release the key
At this point, the LED corresponding to the key just released will fl ash, and the same LEDs of the other
groups will fl ash at the same time. In this condition, the machine is in programming mode.
B. Programming
Programme the 4 doses of the 1st group as follows:
From the grinder-dispenser, take the amount of coffee corresponding to the dose used for a single espres-
so. Insert the portafi lter in the 1st group.
Position the cup under the portafi lter spout.
Press the fi rst button where the dose will be saved, and, once the cup has the desired amount of coffee
in it, stop and save the dose by pressing the fi fth key 10.
Repeat the same operation to save the other doses of each group.
To programme the other groups with the same doses as the 1st group. Once the 1st group has been
programmed, simply press the button
LED stops fl ashing and remains lit.
C. Exit from programming
To exit machine programming, press the butto
subsequently pressed will deliver the previously saved dose.

7.2 Programming hot water doses

Use the same method described in section 6.6 to programme the hot water doses.
42
together with the short coffee single dose key
on each of the other group's keypads so that the corresponding
of the 1st group and the LEDs will turn off. Each key
of the fi rst group. The button
of the fi rst group. The button
of the fi rst group
.