6. Maintenance and Periodic Cleaning Operations
THE MACHINE MUST BE INSTALLED SO THAT QUALIFIED
TECHNICAL PERSONNEL CAN EASILY ACCESS IT FOR
EVENTUAL MAINTENANCE.
caution
THE MACHINE MUST NOT BE DIPPED IN, NOR SPLASHED
WITH, WATER IN ORDER TO CLEAN IT. FOR CLEANING
OPERATIONS, PLEASE FOLLOW THE INSTRUCTIONS
LISTED BELOW VERY CAREFULLY.
1) Cleaning groups and drain wells
- Put a tablespoon of detergent powder
for coffee machines into the blind filter,
supplied with the machine, and tighten it
onto the group you want to clean by using
a normal filter holder.
caution
DO NOT REMOVE THE FILTER HOLDER WHILE RELATIVE
GROUP IS BREWING HOT LIQUIDS.
THE COFFEE BOILER CONTAINS WATER AT ELEVATED
TEMPERATURE.
WATER TEMPERATURE OVER 125°F / 52°C CAN CAUSE
SEVERE BURNS INSTANTLY OR DEATH FROM SCALDING.
- For AV models: activate the automating
rinsing (backflushing) routine (see the
Software Programming Manual for more
detailed instructions). For MP models:
brew water for 3 sec and repeat ten times
for each group.
- Rinse the group using a normal filter, by
running hot water through it several times
2) Cleaning filters
- Put 2 or 3 teaspoons of detergent powder
for coffee machines in about 1/2 a litre
of water inside a heat-resistant container
and boil.
- Dip filters in the boiled solution and
leave them fully submerged for about 30
minutes.
- Rinse thoroughly with clean water and
run hot water through one group several
times with the filters in place.
- Make one cup of coffee and discard in
order to remove any unpleasant flavor.
3) Cleaning filter holders (portafilters)
Using the proper cleaning tool (brush)
wash the filter holders under hot water,
a neutral detergent may also be used.For
extraordinary cleaning see the Portafilter
Manual.
4) Cleaning the drain collector
Remove the drain tray grill at least twice
a week and clean, pull out the water drain
collector and clean it thoroughly. Inspect
and clean also the drain box and remove
any leftover grounds.
5) Cleaning the body
Wipe the stainless steel surfaces with a
soft, non abrasive cloth in the direction of
the glazing marks, if any. Do not use any
alcohol or solvents whatsoever on painted
or imprinted parts in order not to damage
them.
6) Cleaning the hot water and steam nozzles
Steam nozzles must be cleaned
immediately after use with a damp cloth
and by producing a short burst of steam
so as to prevent the formation of deposits
inside the nozzles themselves, which
may alter the flavor of other drinks to
be heated. Hot water nozzles must be
cleaned periodically with a damp cloth.
7) Cleaning the diffuser screen
- Due to filter holder discharge operations
(subsequent to coffee brewing), a certain
amount of coffee grounds may slowly
build-up on and obstruct, even partially,
the diffuser screen. To clean it, you must
first remove it by unscrewing the diffuser
screw.
- Put 2 or 3 teaspoons of cleaning
detergent for coffee machines in about
1/2 a litre of water inside a heat-resistant
container and boil.
EN
WARNING
17
Group
Assembly
Diffusor
Screen
Diffusor
Screw
- Place the diffuser screen(s) and diffuser
screw(s) in the solution and leave them
fully submerged for about 30 minutes.
Rinse thoroughly with clean water. Install
and run hot water through each group
several times with the screen installed.
EN
8) Water Filter/Softener
Please see the documentation accompanying
the water filter/softener for proper operating
and cleaning instructions.
If the machine has not been used for more
than 8 hours or, in any case, after long
periods of being idle, in order to use the
machine to its full potential it is necessary
to perform some cleaning cycles before
brewing beverages as follows:
• Groups: with the portafilters engaged in
the groups brew water through each for
at least two minutes
• Steam: Being careful to avoid burns, turn
on each steam wand for at least one
minute.
• Hot water: Turn on the hot water valve for
18
the time necessary to allow the following
quantities of water to be brewed:
- At least 1 liter for a 1/2 group machine
- At least 2 liters for a 3 group machine
• Steam boiler draining: to activate this function
you need to access the programming menu
(see p. 93). Yearly, we recommend to fully
drain the steam boiler by means of the
specific drain cock located on the side of
the boiler or under the boiler.
WARNING
IN ORDER TO PREVENT CRACKS OR LEAKAGE: DO NOT
STORE OR INSTALL THE COFFEE MACHINE IN PLACES
WHERE TEMPERATURE MAY CAUSE WATER IN BOILER
OR HYDRAULIC SYSTEM TO FREEZE.
IMPORTANT
If the machine has not been used for more
than 8 hours or, in any case, after long
periods of being idle, in order to use the
machine to its full potential it is necessary
to perform some cleaning cycles before
brewing beverages as follows:
- Groups: with the portafilters engaged
in the groups brew water through each for
at least two minutes
- Being careful to avoid burns, turn on
each steam wand for at least one minute.
- Turn on the hot water valve for the time
necessary to allow the following quantities
of water to be brewed:
At least 1 liter for a 1/2 group machine
At least 2 liters for a 3 group machine
At least 3 liters for a 4 group machine
If the machine is not going to be used
for long periods of time, it is advisable to
follow these safety indications:
- Disconnect the machine from the water
mains or interrupt the water connection
via a mains tap.
- Disconnect the machine from the
electrical mains.
WARNING
IF THE ABOVE-MENTIONED INSTRUCTIONS ARE NOT
ADHERED TO THE MANUFACTURER CANNOT BE HELD
RESPONSIBLE FOR DAMAGE TO PERSONS OR THINGS.