Water Replacement; Preparing The Machine - C.M.A. Astoria AL Bedienungs- Und Wartungsanleitung

Water replacement

6.6
During the installation of the machine, the Qualified
Technician must replace the water contained in the hy-
draulic circuits by following these steps:
when installation is complete, the appliance has to
be started, brought to the nominal working condi-
tion and left for 30 minutes in the "ready to operate"
condition;
afterwards, the appliance has to be turned off and
emptied of the first water introduced in the whole hy-
draulic circuit, to eliminate possible initial impurities;
then, the appliance must be once again loaded and
brought to the nominal working conditions.
after reaching the "ready to operate" condition, the
following has to be performed:
- for each coffee unit, carry out a continuous deliv-
ery, in order to release at least 0.5 litres of the cof-
fee circuit. In the case of several dispensing points
matched with the same exchanger/coffee boiler,
divide the volume on the base of the number of
the dispensing points;
- release the whole volume of hot water inside the
boiler (3 litres for 1GR, 6 litres for 2GR, 8 litres for
3GR, 11 litres for 4GR), by performing a continuous
delivery from the appropriate nozzle. In the case
of several dispensing points, divide the volume on
the base of the number of the dispensing points;
- continuously release steam for at least 1 minute
for each steam dispensing point.
If the machine remains inactive for a time longer than 1 week, the
Qualified Technician must renew 100% of the water contained in
the hydraulic circuit, as indicated above.
USER manual

Preparing the machine

6.7
6.7.1 Grinding and dosing coffee
It is important to have a dosing-grinding device next
to the machine with which to grind the coffee to use
daily.
The grinding and the dosing of the coffee must be
done according to that indicated by the manufacturer
of the dosing-grinding device. The following points are
also to be kept in mind:
to obtain a good espresso it is recommended not to
keep large stocks of coffee grains. Observe the expiry
date indicated by the producer;
never grind large volumes of coffee, it is advisable
would be to have the quantity contained in the dos-
ing device and use it if possible by the end of the day.
never to buy (if possible) already ground coffee, as it
expires quickly. If necessary, buy it in small vacuum-
sealed packages.
6.7.2 Preparing the filter holder
Fill the filter with a dose of ground coffee (circa 6-7
gr.) and press it with the press;
hook the filter-holder to the unit without closing it too
tightly in order to avoid excessive wear of the gasket;
for the same reason it is recommended to clean the
edge of the filter before attaching the filter holder to
the dispensing unit;
follow the procedures specified by the manufacturer
of the grinder.
6.7.3 Work surface light On (if present)
To activate the light in the machine compartment,
press the switch located under the control front panel.
To switch the light off, select again the same switch.
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