mastro SOFIA Series EFA0003 User manual

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SE ER RI IE ES S
EFA0003 EFA0004 EFA0006

Summary
Introduction
Identification of the machine
1. General information
2. Description of the machine
2.1. Functional specifications
2.2. Machine equipment
2.3. Mechanical protection
2.4. Electrical protection
2.5. Aerial noise
2.6. Vibrations
3. Technical information
3.1. Size and weight
4. Conditions to avoid
5. Transport
5.1. Packaging
5.2. Checking on delivery
6. Installation
6.1. Preparing for installation
6.1.1. Water supply
6.1.2. Electrical power supply
6.2. Preliminary operations
6.3. Positioning
7. Putting into use
7.1. Commands
7.2. Control instruments
7.3. Starting the machine
8. Use
8.1. Making espresso
8.2. Making cappuccino
8.3. Heating up drinks
8.4. Making herbal teas
9. Adjustment and calibration
9.1. Semiautomatic models
9.2. Automatic models
10. Maintenance
10.1. Daily
10.2. Weekly
10.3. Periodic
10.3.1. Changing the water
10.3.2. Regenerating the water
softener
11. Putting out of use
12. Troubleshooting

1. GENERAL INFORMATION
• The packaging components (bags, polystyrene, card staples etc). must not be left
within reach of children since they could be a source of danger.
• Before plugging in the machine make sure that the voltage shown on the
identification plate and on the power supply correspond. The use of adapters,
multiple sockets and/or extension leads is forbidden.
• In case of doubt have the electrical power supply system checked by qualified
personnel to ensure that it meets the requisites of current legislation, including:
o Earthing
o Cross-section of conducting wire sufficient for the power absorbed
o Efficient circuit-breaking device
• Place the machine on a water-repellent counter (laminate, steel, ceramic, etc.) far
from sources of heat (oven, burners, fireplace etc) in a room where the temperature
does not fall below 5°C.
• Do not expose the machine to bad weather or place it in a room or environment with
a high level of humidity, etc.
• Do not obstruct the air intake or outlet grills, specifically do not cover the cup
warming counter with cloths or anything else.
• The machine, in its packaging, should be stored in a place protected from bad
weather, dry and free of humidity. The temperature should be above 5°C. A
maximum of three boxes of the same type may be piled on top of one another. Avoid
placing other heavy boxes on top of the container.
• In case of an emergency, such as the start of a fire, unusual noise or over heating etc,
unplug from the electrical power supply, close the water intake tube and, where
foreseen, the gas tap.
• Only use accessories and spare parts authorised by the manufacturer; this will ensure
proper functioning and prevent problems arising.
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2. DESCRIPTION OF THE
MACHINE
The Sofia range of coffee machines is available in the version fitted with electronically
controlled brew groups, where the amount of coffee in the cup can be programmed; and in
the continual flow version (button).
The thermo-stabilised brew group ensures optimum use of the best of the coffee; the optimal
level of water in the boiler is replenished by means of an electronic device. The water and
steam are dispensed through 3 multi-directional high performance steam-tubes (version with
2 steam tubes available on request) to enable the preparation of cappuccinos and other hot
drinks.
These technical solutions make it possible to eliminate any wastage of energy and protect the
machine from harmful thermal shocks.
The water, taken directly from the mains water supply, is pressurised using a maintenance
free positive displacement pump, while it is heated by means of conductive heat exchange in
the boiler.
By using the commands for the purpose situated on the front of the machine the perfectly
heated and pressurised water is delivered to the brew units.
The load bearing structure of the machine is made in steel and the mechanical and electrical
components are attached to it.
The casing of the machine is in stainless steel and Baiedur, which give it the necessary
protection as well as a unique design.
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2.1 Functional specifications and composition of the machine
The entire Sofia range is available in the following versions:
Push button semi-automatic functioning:
• With steam nozzle and hot water nozzle (Fig.1)
• With double steam nozzle and hot water tube (Fig.2)
• With (Fig.2) or without (Fig. 2) boiler water level indicator
Programmable automatic dosing:
• With (Fig.4) or without (Fig.3) visual display of machine functions.
• With steam nozzle and hot water nozzle (Fig.3 and Fig.4)
• With double steam nozzle and hot water tube (Fig.5).
• With (Fig.5) or without (Fig.3 and Fig.4) boiler water level indicator
FIG:3
FIG:2
FIG:1
FIG:5 FIG:4
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2.2 Machine equipment
GROUP GROUPS GROUPS
Filter holder 1 cup N°1 N°1 N°1
Filter holder 2 cups N°1 N°2 N°3
Filters 1 cup N°2 N°2 N°2
Filters 2 cups N°2 N°3 N°4
Blind filter N°1 N°1 N°1
Incoming pipe 1.7
m N°1 N°1 N°1
Outgoing pipe 1.5
m N°1 N°1 N°1
Instruction booklet N°1 N°1 N°1
Electrical diagrams N°1 N°1 N°1
2.3 Mechanical protection
• Full protective coating of the parts subjected to heat and of the hot water and steam
generator
• Work top with drip plate and tray for collecting liquids
• Expansion valve on the water pipes and protection valve against high pressure in the
boiler
• Non-return valve in the water pipes to prevent backflows to the water supply
2.4 Electrical protection
• Low voltage keyboard commands
• Thermal protection of the pump motor
• Thermal protection of the resistances
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EFA0003 EFA0004 EFA0006

2.5 Aerial noise
In the workplace the noise level of 70Db (A) is not usually exceeded.
2.6 Vibrations
Th machines are fitted with anti-vibration rubber feet. In normal conditions of use
vibrations which might be harmful to the operator or the environment are not
generated.
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3. TECHNICAL INFORMATION
3.1 Size and weight
SIZE AND
WEIGHT GROUP GROUPS GROUPS
Length [mm] 520 700 950
Depth [mm] 540 540 540
Height [mm] 500 500 500
Weight 44 70 80
Boiler capacity [Lt] 5 11.5 18
PACKAGING
Volume [cm3] 283 340 434
Measurements
LxDxH [mm] 620x700x650 620x830x660 620x1060x660
Gross weight [Kg] 48 74 90
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EFA0003 EFA0004 EFA0006

4. CONDITIONS TO AVOID
The machines in the Sofia range have been designed and built for the preparation of espresso
coffee and other hot drinks. Any other use is deemed improper and hazardous.
The manufacturer declines any responsibility for damage to persons or things
resulting from improper, incorrect or unsuitable use of the machine.
The user must follow the instructions for use and maintenance given in this manual at all
times. In case of doubt or of anomalous functioning, turn off the machine, refrain from
making any repairs or intervening directly and contact the service centre.
The user must not:
• Touch the hot parts or dispensing parts of the machine
• Rest containers of liquid on the machine
• Perform repairs or move the machine with the power supply attached or while the
machine is hot
• Wash the machine with direct jets of water or under pressure
• Partially or totally immerse the machine in water
• Use the machine if the electric power cable appears to be damaged
• Touch the machine with wet or damp hands or feet
• Use the machine when there are children in the immediate vicinity
• Allow unqualified persons or children to use the machine
• Obstruct the air intake and heat outlet grills with cloths or anything else
• Use the machine if it is wet or damp in the non-dispensing areas
These machines are destined for exclusive use for food products so that the use of liquids
and/or materials of other types which could be harmful and/or pollute the brew units is
forbidden.
The manufacturer declines any responsibility for damage to persons or
things resulting from improper, incorrect or unsuitable use of the machine
by non- qualified personnel.
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5. TRANSPORT
5.1 Packaging
The machine is supplied in a single, cardboard box with internal protection in polystyrene.
The conventional symbols to observe during transport or storage of the box are shown on
the outside.
Always move with the box in a vertical position, do no t overturn or lay on its side,
proceed with caution, avoiding collisions and protecting from bad weather.
5.2 Checking on delivery
At the moment of delivery check that the machine you have received corresponds to the one
described in the accompanying documentation, including any accessories.
Check that it has not been damaged during transport and if this should have occurred
promptly inform the forwarding agent and our customer service department.
The packaging components should not be left within reach of children since they
could constitute a source of danger,
Do not abandon the packaging components in the environment but dispose of them
by consigning them to the bodies authorised to perform such activities.
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6. INSTALLATION
The machines are provided with feet which can be adjusted in height, make sure that they
adjustment is the same for all four feet.
The counter that the machine is supported by should be perfectly level, dry, strong, stable
and at least 110 cm off the floor.
The machine does not need to be anchored to the counter nor are technical adjustments
required to limit the vibrations.
We recommend leaving plenty of space around the machine so as to facilitate its use and
maintenance operations.
Do not install if the machine should prove wet or damp until you are sure that it is
completely dry. The servicing personnel should however check in advance that no damage
has been done to the electrical components.
Set aside an area near the machine for coffee grinding.
If the machine should have a water softener fitted then it must be connected up by the
person installing the machine in accordance with current legislation.
If a water softener other than that specifically designed for the machine should be installed,
refer to the documentation of the product chosen.
Have the installer provide a drawer to knock the used grounds into.
6.1 Connections to be provided by the client
Any connections should be made by qualified personnel in observance of federal,
state and local legislation.
6.1.1 Water supply
The connections should be predisposed near the machine:
• Water outlet pipe
• Water supply pipe
6.1.2 Electrical power supply
The machine is delivered ready for connection to the electrical power supply according to the
specifications requested at the moment of purchase.
Before connecting up the machine make sure that the voltage on the identification plate
corresponds to that of the mains supply. The electric cable, which should be intact and
undamaged, should be plugged directly into the socket previously predisposed in accordance
with current legislation. The earthing system and protection against atmospheric discharges
must be obligatorily provided as directed by current legislation.
Use a normed cord for the power supply with protective conductor (earth wire).
For a three-phase power supply use a 5 wired socket (3 phases + neutral + earth).
For a single-phase power supply use a 3 wired socket (phase + neutral + earth).
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In both cases fit a differential switch complete with magnetic release mechanisms compatible
with the data shown on the identification plate of the machine upstream of the power supply.
The contacts must have an opening equal to or superior to 3 mm.
Remember, each machine must have its own safety devices.
If the power supply cable is damaged it must be replaced by the manufacturer or by
the technical servicing department or in any case by qualified personnel so as to
prevent any risks.
6.2 Positioning of the machine
• Position the body of the machine on the horizontal counter for the purpose.
Before connecting it up, wash the water supply tubes carefully:
• Opens the mains water tap and let it run for a few minutes
• Connect up the water intake and outlet tubes
• Connect the machine to the electricity power supply
Carefully wash all the water pipes in the machines:
• Open the mains water supply tap completely
• Turn on the general switch and wait for the boiler to fill up to the level set
• Turn on the general switch so that the water in the boiler begins to heat
• Turn on each group so that water is dispensed for about one minute, repeat the
operation twice.
• Dispense steam from the steam nozzles for about one minute
• Dispense hot water from the special water nozzle for at least one minute, repeat the
operation twice
• Turn off the switches
• Empty the boiler
If the machine has not dispensed any liquids for 24 hours, before resuming work,
wash the internal parts by repeating the operations described above.
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7. PUTTING INTO USE
7.1 Commands and control instruments
1. Boiler pressure manometer
2. Water pressure manometer
3. Display
4. Multifunction keyboard
5. Level viewer
6. Water intake button
7. Steam knob
8. Water dispenser button
9. Water tube
10.Steam nozzle
11.Selector
12. Coffee dispensing button
12
12
1
2
6
5
7 7
1
1
4 8 4
1
3 9
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Functions:
The manometer (*) showing a scale from 0- 2.5 bar shows the boiler pressure:
• When the arrow is between 0 and 0.8 bar in the blue part of the dial, the machine is
heating up and the dispensing of coffee is not recommended.
• The area between 0.8 and 1.6 bar indicates that the pressure and the water are as they
should be and that the machine is therefore in the ideal condition for making coffee.
If the pressure indicated on the manometer (*) should exceed 1.6 bar turn the machine
off immediately and contact the service centre.
The manometer (*) showing a scale from 0-15 bar shows:
• When in the stand-by phase, the pressure of mains water supply to the machine.
• During the dispensing cycle , the pressure of the water infused
The viewer (*) shows the level of water in the boiler:
The Sofia range of coffee machines is equipped with a device which automatically
keeps the water level in the boiler constant by using the pump and solenoid valve. If the
level is not visible turn the machine off and contact the service centre.
Display (*) [only on models with Dosing system activated]
The multifunction display on the machine provides the user with useful information
depending on the functioning status of the machine:
• When the machine is turned on and the boiler is filling up the display visualises the
message “boiler filling”
• When the machine is on stand-by the display visualises the message “select drink”
followed by a message which can be personalised
• While the dose is being programming phase the display visualises the operations
being performed (see paragraph 9)
• While the coffee is being dispensed the display visualises information on the type of
coffee being prepared:
o When making “small” coffees the display visualises the message “espresso
coffee” and the number of coffees being prepared
o When making large coffees the display visualises the message “coffee being
made” and the number of coffees being prepared
o When the coffee is being made in the continuous mode the display visualises
the message “ continuous preparation”.
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Multifunction keyboard (*) [only for Dose models]
1 2 45
3
35
4
2
1
Key (1) activates the dispensing cycle needed to prepare one espresso coffee
Key (2) starts the dispensing cycle needed to prepare two espresso coffees
Key (3) starts the dispensing cycle needed to prepare one large coffee
Key (4) starts the dispensing cycle needed to prepare two large coffees
Key (5) starts the continuous dispensing cycle, by pressing the key again the dispensing cycle
is interrupted.
7.3 Turning on the machine
• After checking the electrical and plumbing connections once again, open the intake
tap from the mains water supply.
• Turn the selector (1) to the first position and wait for the electronic control block
which the machine is provided with, to carry out the control procedures and activate
the pump and solenoid valve to fill up the boiler
If the boiler is already full the automatic control process will block the functioning of
the pump
• Using the viewer for the purpose (2), check that the boiler is full and that the pump is
on stand-by.
• Mod. Push button:
Place the empty filter holder in the brew group press button (4) and wait for water to
come out of the spout of the filter holder, press the button again to stop the water
from being dispensed.
• Mod. Dose:
Place the empty filter holder in the brew group, press button (5) on the keyboard of
the machine, wait for water to come out of the brew spout then press the button
again to stop the water from being dispensed
• Turn the selector (1) to the second position, the in-use light (6) on the side will come
on and the water in the boiler will begin to heat
• Wait for the red light (6) to go off, a sign that the water in the boiler and in the brew
groups has reached the right temperature.
While the machine is functioning the light will come on and go off at varying
intervals depending on the use of the machine.
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• When the light (6) goes off this means that the machine is ready to use
Mod. Push button:
• Place the filter holder filled with ground coffee in the brew group
• Place the cup/s under the brew spout
• Press the coffee dispensing (7) button situated above the group
• When the cup contains the desired amount of coffee press the button (7) again to
stop the dispensing cycle.
Mod. Dose:
• Place the filter holder filled with ground coffee in the brew group
• Place the cup/s under the brew spout
• Press button (8) to get a single cup of espresso coffee. The dispensing cycle will stop
automatically
• Press button (9) to get two espresso coffees. The dispensing cycle will stop
automatically
• Press button (10) for a single large coffee. The dispensing cycle will stop
automatically
• Press button (11) to get two large coffees in a double cup. The dispensing cycle will
stop automatically.
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8. USE
8.1 How to make the coffee
• Remove the filter holder from the brew group, turn it over and hit it against the top
of the drawer for the used grounds on the side of the filter to get rid of the grounds
(be careful not to damage the filter)
• Use the filter for 1 or 2 cups as required
• Fill the filter with the dose of ground coffee, level off and press down lightly with the
tamper.
• Brush off any residues of coffee from the rim of the filter
Any residues of ground coffee left on the rim of the filter could prevent a perfect
adhesion of the sealer ring with a consequent leakage of water and coffee grounds
• Fit the filter holder firmly onto the dispenser group
• Place the cups under the brew spouts and start the dispensing cycle by pressing the
button or key depending on the model.
• Complete the dispensing of the coffee, leave the filter holder attached until making
the next coffee.
While the coffee is being dispensed be careful not to touch the hot parts of the
machine and especially the brew group, the steam nozzles and hot water tube. Never
put your hands under the groups or nozzles while the machine is functioning.
8.2 How to make cappuccino
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• First make an espresso coffee in a big cup.
• Fill a tall, thin jug with milk to halfway up.
• Place the jug under the nozzle so that the nozzle touches the bottom.
• Open the steam valve and lower the jug so that the nozzle just touches the surface of
the milk.
• Move the jug up and down so that the nozzle dips in and out of the milk, making a
froth
• Close the steam valve and pour the milk into the cup of coffee
As soon as you have finished clean the nozzle with a clean cloth or sponge so as to
prevent the milk from drying and caking onto it.
Be careful, the nozzle will be hot: avoid touching it directly, you could burn
yourself.
8.3 How to heat up a drink
• Immerse the steam nozzle into the liquid to be heated up
• Gradually open the steam valve to allow the vapour to permeate the liquid, thus
heating it up to the desired temperature.
• Close the steam valve when the desired temperature has been reached
As soon as you have finished, clean the nozzle with a clean cloth or sponge.
Be careful, the nozzle will be hot: avoid touching it directly, you could burn
yourself.
8.4 How to make a herbal tea
• Place a container under the hot water nozzle and press the hot water dispensing
button. When you have the desired amount of hot water press the button again to
stop the flow.
• Add the product desired
The use of softened water may make the tea a darker colour than usual, if you
want to get a normal colour then heat non-softened water as described in
paragraph 8.3
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9. ADJUSTMENT AND CALIBRATION
OF DOSES (for enabled models)
9.1 Model with electronic dosing
The entire Sofia range is available in the version with automatic dosing of the coffee
dispensed (Dose).
The dosing can be adjusted and personalised.
9.1.1 Dosing adjustment
The amount of coffee dispensed can be adjusted using the keyboards of the groups:
• Predispose the filter holder, single or double depending on the button to be
programmed, as described when preparing the coffee
• Keep the asterisk button (*) pressed down until the relative LED starts to flash and,
on the models fitted with a display, the wording “programming select within30s”
appears.
• The flashing LED shows that the machine is in the programming phase, after 30
seconds the machine automatically returns to its functioning phase.
• While the LED is flashing press the button relative to the dosing you want to
programme, to start the dispensing cycle.
• During the dispensing cycle the LED corresponding to the key being programmed
will stay lit, like that of the asterisk button (*). On the models fitted with a display the
wording “programming” appears followed by the type of coffee you are
programming (espresso or large).
• Wait for the amount of coffee in the cup to reach the desired amount then press the
button again to stop the dispensing cycle.
• The adjustment made is memorised by the electronic control block
• Repeat the operation for the remaining buttons, the LED’s of the buttons already
programmed will remain unlit.
When adjusting machines with two or more brew groups begin the adjustment
from the first keyboard to the left when facing the machine.
The electronic control block will automatically memorise it and apply the
adjustment to the other keyboards.
If you also wish to adjust the dose relative to the second and/or third keyboards
repeat the procedure from the beginning.
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10. Maintenance
Unless otherwise indicated all maintenance operations should be performed with the
machine turned off, cooled down and unplugged. The use of metallic or abrasive
instruments and solvents for cleaning the machine is advised against: they could
damage it.
Where indicated, use specific detergents for coffee machines, on sale in specialised
service centres.
10.1 Daily maintenance
For cleaning operations use cloths or sponges which do not leave hairs or threads.
• Carefully clean the casing and the parts in stainless steel in the direction of the
silking.
• Clean the steam nozzles and hot water nozzle checking that the openings of the
nozzles are not partially or completely clogged by residues or incrustations; should
scaling be necessary be very careful not to bend or damage the sprayer.
• Clean the shower heads and seals under the brew groups using the special brush
provided.
• Remove the filter-holders from the machine, take out the filters and remove any
incrustations of coffee with the brush. To remove any residues of fat rinse the
filters and filter-holders in hot water.
10.2 Weekly maintenance
10.2.1 Cleaning the brew groups
Operations to be performed with the machine on and under pressure.
• Put the blind filter provided into the filter-holder, add a spoon of powdered
detergent for coffee machines and then attach the filter holder to the brew group
which needs cleaning.
• Switch on the coffee dispensing button for the group for about 30 seconds.
• Stop and start the dispensing cycle various times until the water coming out of the
brew group is transparent.
• Remove the filter-holder, remove the blind filter and put in a normal filter, fit the
filter holder back onto the brew group and turn on the dispensing cycle various
times so as to ensure sufficient rinsing.
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