BIANCHI VENDING SOFIA ESPRESSO - Machine Operation; How to Prepare Coffee; How to Prepare Cappuccino

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9. MAINTENANCE
Unless otherwise specied, all maintenance operations
must be carried out when the machine is totally powered
down to OFF, it has cooled down and the mains socket is
unplugged. Use of metal, abrasive tools and solvents is not
recommended for machine cleaning operations:
they could all cause damages.
Where indicated, use specic detergents for coffee machi-
nes that are available on sale in the specialised technical
service centres.
9.1 Daily maintenance
For cleaning operations use cloths or sponges that will not release
bresorthreads.
· Clean the bodywork accurately and, on the stainless stele parts,
rubinthedirectionofthesatinnish.
· Clean the steam and the hot water dispenser pipes. Check to
see that the spout diffuser nozzles are not clogged or partially
clogged with crusts and residues. If a crust removal operation is
necessary, be very careful not to deform or damage the relative
sprayer.
· Removethelterbasketsfromthemachinethenremovethe
ltersandproceedwithremovinganycoffeeencrustations.To
removegreasedepositsrinseouttheltersandlterbaskets
using hot water.
9.2 Weekly maintenance
9.2.1 Cleaning the dispensing groups
This operation must be conducted whilst the machine is operative
and under pressure.
· Placetheblindlteronissuewiththemachineintothelter
basket.Addinaspoonofspeciccoffeemachinedetergent,
then reassemble the lter basket back into the group to be
cleaned.
· Activate the coffee dispensing start command on the group for
about 30 seconds.
 IntheAutomaticversion,oncethelterbasketisassembled
back on again, press keyboard keys 14 and 18 simultaneously.
Themachinewillautomaticallyrunvewashcycles.
· Start up and stop the dispensing cycles for the number of ti
-
mesrequired,untilclean,clearwaterowsoutofthegroup
discharge.
· Removethelterbasket,removetheblindlterandinserta
normallter.Reassemblethelterbasketbackonandactivate
the dispensing cycle for as many times as required to ensure
sufcientrinsing.
· Make a coffee to eliminate any possible unpleasant tastes.
9.2.2 Cleaning the lters
· Prepare a cleaning solution using hot boiling water plus a packet
ofthespeciccoffeemachinepowderdetergent,inacontainer
that is not in aluminium or iron.
· Removetheltersandsoakthemtogetherwiththelterbaskets
in said solution for at elast 20 minutes (if possible, all-night
soaking is preferable).
· remove the lters and the lter baskets from the detergent
solution and rinse them thoroughly under plenty of running
water.
9.2.1 Cleaning the collection tray
· Remove the cup carrier grid from the tray and clean if neces
-
sary.
· Remove the discharge tray and clean it to remove any possible
encrustations and/or coffee grounds residues.
9.3 Periodic maintenance tasks
9.3.1 Water replacement and total emptying out of the
boiler
This operation must be conducted by the technical service per-
sonnel.
· Power the machine down to OFF and wait until there is no more
pressure inside the boiler (i.e. the pressure gauge must be on
“0”)
· Remove the safety valve by unscrewing it at the base using an
adjustable spanner (size 21).
· Use a pump to suck up all the water in the boiler.
· Reassemble the safety valve back on again.
· Proceedwithllingtheboilerbackupagain.
9.3.2 Regeneration of the water treatment units
For the regeneration of the water treatment units, please consult
the relative user’s manual and follow the instructions therein.