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6.11 Automatic operation - programming the coffee brewing cycles
Automatic models: 80–Preziosa 16M
a. Entering the programming mode
Set the main switch 1 on the machine to position “zero” (machine switched off).
Hold down the fi fth button 10 on the fi rst brewing unit. Now, rotate the main switch 1 to position 1 (machine switched on).
After a few seconds, release the button 10. The indicator led for the button will now begin to fl ash, as will the same led
on all the other brewing units. The machine is now ready for programming
.
b. Programming
To program the four portions on brewing unit I, proceed as follows: place the single-portion fi lter into the single-portion
fi lter holder. Use the coffee dispenser to dispense a single portion of coffee into the fi lter. Mount the fi lter holder
onto brewing unit I.
Place an espresso cup under the spout on the fi lter holder.
Press the fi rst button 6 whose portion is to be programmed. When the coffee in the cup reaches the desired
level, press the fi fth button 10 to stop brewing.
Follow the same procedure to program the other portions on each group. Once the four portions on brew ing unit I
have been programmed as desired, the relative data can be transferred to the other brewing units by pressing
the fi fth button 10 on each unit. When each button 10 is pressed, the indicator led for the button will stop fl ashing
and remain steadily lit. This shows that the data on brewing unit I has been transferred successfully.
c. Exiting from the programming mode
After you have fi nished programming the machine, press the button 10 (with fl ashing led) on brewing unit I and
all the leds will turn off. The programmed quantity of coffee will now be delivered when an automat ic brewing
button is pressed.
6.12 Important information on daily maintenance
To keep your espresso machine in top operating condition and obtain maximum performance, the following cleaning
operations must be performed on the brewing units at the end of the work day:
a. Install the blank fi lter (without holes) into the fi lter holder. This fi lter is provided with the machine.
b. Install the fi lter holder with blank fi lter onto the brewing unit to be cleaned but do not tighten the holder, thus
allowing water to overfl ow at the sides. Push the continuous brewing button and let the water run for about a
minute. This will clean the spray head and the water delivery pipe in the unit.
c. Tighten the fi lter holder onto the brewing unit so that water can no longer overfl ow at the sides. Manually run the
unit once again for around 5 seconds, and then shut the unit down. Repeat this operation 5 or 6 times to clean
the solenoid valve and the drain pipe on the unit.
Note: To clean the brewing units more thoroughly, the blank fi lter can be fi lled with one of the special deter gents that
are available on the market.
6.13 Alarms
Led on the fi rst button of pushbutton array indicates a malfunction on the fl ow meter.
A fl ashing Led on the second button of all the pushbutton arrays indicates a malfunction on the automatic boiler
refi ll A fl ashing system (jammed solenoid valve, insuffi cient water from the main water system, etc.). After 1 ’30”, the
pump motor will shut down.
Note: If the machine shuts down as described above, call your local service technician.
• Do not use water sprays, steam or similar cleaning methods. Before cleaning or main tenance op-
erations, DISCONNECT THE CABLE IF POSSIBLE; OTHERWISE, SHUT OFF THE OMNIPOLAR
MASTER SWITCH INSTALLED AHEAD OF THE MACHINE.
• If power cable is damaged, it must be replaced with the specially prepared, original equipment
replacement part which conforms to safety regulations.
• Special maintenance, parts replacement, long-term shutdown and displanting opera tions must be
performed by LA SAN MARCO service personnel.
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