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6.5 Water renewal
When the machine is being installed, the Technician must re-
place the water inside the hydraulic circuits by following these
steps:
• When the installation is complete, the appliance must be
started, brought to the nominal working condition and
left in the "ready-to-operate" status for 30 minutes.
• Next, the appliance has to be turned off and fully emptied
of the first water introduced into the entire hydraulic cir-
cuit, in order to eliminate any initial impurities.
• The appliance must then be filled again with water and
brought to nominal working conditions.
• Upon reaching the "ready-to-operate" status, the follow-
ing dispensing operations must be performed:
-
Continually dispense from each coffee group, in order
to empty at least 0.5 litres from the coffee circuit. If
there are several dispensing points attached to the
same exchanger/coffee heating unit, divide the vol-
ume by the number of dispensing points.
Empty the heating unit of all its hot water by contin-
-
uously dispensing through the specific nozzle. If there
are multiple dispensing points, divide the volume by
the number of dispensing points.
Continuously release steam for at least 1 minute from
-
each steam dispensing point.
If the machine remains inactive for longer than a
week, the Technician must renew 100% of the wa-
ter inside the hydraulic circuits, as indicated above.
Before using the machine, run a few empty dis-
pensing cycles with the filter holder attached for a
few seconds to release any air inside the circuit
and in turn, allow the dispensing groups to fully heat up.
Before using the machine, dispense a few coffees
to test the grind fineness and to check the operat-
ing pressure of the machine.
TECHNICIANS' manual
6.6 Dispensing coffee
Preparing the filter holder
6.6.1
Before filling the filter holder, make sure it is
empty and any previous coffee residue has been
removed.
• Fill the filter with a dose of ground coffee (approx. 6-7 g);
follow the procedures specified by the manufacturer of
the grinder-dispenser.
• Compress the coffee with the special press.
• Clean the rim of the ground coffee filter before attaching
the filter holder to the dispensing group.
• Hook the filter holder to the group without closing it too
tightly in order to prevent the gasket from wearing quickly.
6.6.2
AL version
Never perform the described operations without
coffee in the filter or without the filter holder at-
tached to the dispensing group. The rapid upward
movement of the lever may cause damage to the appliance,
individuals or property. The dispensing time depends on the
grind fineness and the amount of coffee in the filter holder.
• Place the coffee cup under the
dispensing spout.
• Pull the lever all the way down.
• Wait a short time for the cof-
fee to be pre-infused (3-5 sec-
onds).
• Lift the lever until a certain re-
sistance is felt, then release it.
• Wait until the coffee has been
dispensed.
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