Astoria SABRINA SAE DISPLAY User manual

CMA MACCHINE PER CAFFÈ S.r.l.
Via Condotti Bardini, 1 - 31058 SUSEGANA (TV) - ITALY -Tel. [phone] - Fax [phone] - www.astoria.com - [email protected]om
2006/42/EC Machinery Directive
SABRINA
SAE
DISPLAY
ESPRESSO COFFEE MACHINE
Use and maintenance manual. TECHNICIANS' instructions.

IMPORTANT: Read carefully before use - Store for future reference
All rights reserved on contents The total or partial reproduction and the dissemination of the contents of this document is
forbidden without the Manufacturer having given prior written authorisation.The Company logo is owned by the Manufacturer
of the Machine.
Responsibility We are constantly committed to improving the accuracy of information published in every Manual; some
imprecisions, however, may occur. We assume no responsibility for any errors or omissions, or for damages resulting from the
use of this document.

ESPRESSO COFFEE MACHINE
Use and maintenance manual. TECHNICIANS' instructions.
English
Table of contents
1. INTRODUCTION.................................................................4
1.1 Guidelines for reading the Manual........................................ 4
1.2 Storing the Manual ............................................................... 5
1.3 Method for updating the Instruction Manual........................ 5
1.4 Recipients ............................................................................. 5
1.5 Glossary and Pictograms....................................................... 5
1.6 Guarantee ............................................................................. 6
2. SAFETY PRECAUTIONS............................................................7
2.1 Level of training and information required of the technician 7
2.2 Safety precautions ................................................................ 7
2.3 Transport and handling......................................................... 7
2.4 Installation............................................................................ 8
2.5 Commissioning ..................................................................... 8
2.6 Maintenance and cleaning.................................................... 9
3. MACHINE IDENTIFICATION .................................................... 10
3.1 Make and model designation.............................................. 10
3.2 General description............................................................. 10
3.3 Customer service................................................................. 10
3.4 Intended use....................................................................... 10
3.5 Machine diagram ............................................................... 12
3.6 Internal components........................................................... 13
3.7 Front command push button panel..................................... 14
3.8 Steam wand push button panel.......................................... 14
3.9 Warning indicators.............................................................. 14
3.10 Touchscreen display ............................................................ 14
3.11 Data and CE marking........................................................... 15
4. TRANSPORT AND HANDLING ................................................22
4.1 Safety precautions .............................................................. 22
4.2 PPE features........................................................................ 22
4.3 Size and weight................................................................... 22
4.4 Handling the packed machine............................................. 22
4.5 Unpacking the machine ...................................................... 22
5. STORAGE ..............................................................................23
5.1 Overview............................................................................. 23
5.2 Machine storage ................................................................. 23
6. INSTALLATION ......................................................................23
6.1 Safety precautions .............................................................. 23
6.2 PPE features........................................................................ 23
6.3 Environmental conditions ................................................... 23
6.4 Installation and operating spaces........................................ 24
6.5 Support base....................................................................... 24
6.6 Drilling the support base..................................................... 26
6.7 Hydraulic connection .......................................................... 27
6.8 Electrical connection........................................................... 28
7. COMMISSIONING..................................................................29
7.1 Safety precautions .............................................................. 29
7.2 Preparing the lter holders................................................. 29
7.3 Coee grind......................................................................... 29
7.4 Adjusting the external motor pump.................................... 29
7.5 Raised cup grilles ................................................................ 29
7.6 Lighting .............................................................................. 30
7.7 Steam wand........................................................................ 30
7.8 Turning the machine on and o .......................................... 30
7.9 Replacing the water............................................................ 32
8. SAE DISPLAY MACHINE PROGRAMMING ...............................33
8.1 Parameters.......................................................................... 34
8.2 Settings............................................................................... 41
8.3 Info ..................................................................................... 44
9. MAINTENANCE AND CLEANING.............................................46
9.1 Safety precautions .............................................................. 46
9.2 PPE features........................................................................ 46
9.3 Maintenance....................................................................... 46
9.4 Water Filter maintenance.................................................... 50
9.5 Water softener regeneration............................................... 52
9.6 Malfunctions and solutions................................................. 53
9.7 Cleaning operations............................................................ 55
10. SPARE PARTS........................................................................57
11. DISPLAYWARNINGS .............................................................58
12. DECOMMISSIONING..............................................................60
12.1 Short period of machine inactivity...................................... 60
13. DISASSEMBLY.......................................................................60
14. DISPOSAL.............................................................................60
14.1 Disposal information........................................................... 60
14.2 Environmental information................................................. 60
15. WIRING DIAGRAMS ..............................................................61
15.1 ELECTRIC MAINS connection................................................ 61
15.2 SAE wiring diagram............................................................. 62
15.3 SAE DISPLAY wiring diagram............................................... 63
16. Hydraulic diagram................................................................64
16.1 TSC group hydraulic diagram .............................................. 64
16.2 EXTRACTABLE EXCHANGER hydraulic diagram..................... 65
17. CREDIT - DEBIT SYSTEM........................................................66
17.1 CREDIT - DEBIT SYSTEM with direct connection to the till.... 66
17.2 DEBIT - CREDIT system with direct connection to the till..... 67
17.3 SERIAL CONNECTION DIAGRAM AND BEVERAGETABLE......... 68
18. ALPHABETICAL TOPIC INDEX.................................................69

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1. INTRODUCTION
Read this manual carefully. It provides important
safety information to the Technician regarding the op-
erations indicated in this document.
Keep this Manual in a safe place. If you lose it, you can
ask the Manufacturer for another copy.
The Manufacturer of the appliance cannot be held
responsible for any damage caused due to the non-ob-
servance of the requirements listed in this manual.
Beforeoperatingon themachine,readthe instructionscontained
in this publication and follow the guidelines carefully. Keep this
manual and all attached publications in an accessible and secure
place.
This document assumes that the machine is installed
in a location where the current work safety and hygiene
standards are observed.
The instructions, drawings and documentation con-
tained in this Manual are technical and condential.They
are the sole property of the Manufacturer, and may not
be fully or partially reproduced in any way.
The Manufacturer reserves the right to make any
improvements and/or modications to the product. We
guarantee that this Manual reects the technical state
of the appliance at the time it was marketed.
We encourage the Qualied Technicians to make
any proposals in regards to improving the product or
its Manual.
1.1 Guidelines for reading the Manual
This Manual is divided into separate chapters. The
chapter order is linked to the temporal logic of the life
of the machine.
Terms, abbreviations and pictograms are used to
facilitate the immediate understanding of the text.
This Manual consists of cover, index and a series of
chapters. Each chapter is sequentially numbered. The
page number is shown in the footer.
The machine identication data is displayed on the
machine’s nameplate and the CE declaration of Con-
formity, whilst the date and revision of the Instruction
Manual is provided on the last page.
ABBREVIATIONS
Sec. = Section
Chap. = Chapter
Para. = Paragraph
P. = Page
Fig. = Figure
Tab. = Table
UNIT OF MEASUREMENT
The units of measurement are those provided by the
International System (SI).
PICTOGRAMS
Descriptions preceded by these symbols contain very
important information/requirements, particularly in re-
gards to safety. Failure to comply with these may result in:
t A safety risk for those operating the machine;
t Injury, including serious injury (in some cases even
death);
t Loss of the guarantee;
t The Manufacturer waiving liability.
DANGER symbol used when there is a risk of permanent serious
injury that would require hospitalisation, or in extreme cases,
even cause death.
CAUTION symbol used when there is a risk of minor injury that
could require medical attention.
WARNING symbol used when there is a risk of minor injury that
could be treated with rst-aid or similar measures.
NOTE symbol used to provide important information about the
topic.

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1.2 Storing the Manual
The Instruction Manual must be stored carefully. The
manual should be stored, handled with care with clean
hands and not placed on dirty surfaces.The Manual must
be stored in an environment protected from moisture
and heat.
Do not remove, tear or arbitrarily modify any of its
parts.
On the Qualied Technician's request, the manufac-
turer can provide additional copies of the machine's
Instruction Manual.
1.3 Method for updating the Instruction
Manual
The Manufacturer reserves the right to modify and
make improvements to the machine without providing
notice or updating the Manual that has already been
received.
Moreover, when substantial changes have been made
to the already installed machine involving the modica-
tion of one or more chapters of the Instruction Manual,
the manufacturer will send the Qualied Technicians
the chapters aected by the changes or a revision of
the entire Manual.
It is the Qualied Technicians' responsibility, to re-
place the old document with the new revision.
The Manufacturer is responsible for the Italian con-
tent. Translations cannot be fully veried; therefore, in
the event of inconsistency, users can refer to the Italian
version or if necessary, contact the Manufacturer who
will make the appropriate changes.
IftheManualshouldbecomeillegibleor otherwisehardtoconsult,
Qualied Technicians are obliged to request a new copy from the
Manufacturer before carrying out any work on the machine.
IT isabsolutelyforbiddentoremoveorrewritepartsof theManual.
The instructions, drawings and documentation contained in this
manualarecondentialandthesolepropertyoftheManufacturer.
They may not be reproduced in any way, either in full, or in part
without prior authorisation.
The Qualied Technicians are responsible for complying with the
instructions contained in this Manual.
Should any incident occur as a result of incorrect use of these
recommendations, the Manufacturer declines any liability.
1.4 Recipients
This Manual is intended for the Manufacturer's Qual-
ied Technicians, to whom the following operations
pertaining to the machine are assigned:
t Transport and handling;
t Storage;
t Installation;
t Commissioning;
t Maintenance;
t Cleaning;
t Spare part replacement;
t Emergency operations and faults;
t Decommissioning;
t Disassembly;
t Disposal.
RECIPIENT QUALIFICATIONS
The machine is intended for a professional non-gen-
eralised use, therefore the Qualied Technicians must:
t Have attended the training courses organised by the
Manufacturer relating to the type of machine;
t Be aged 18 and over;
t Be physically and mentally t to use the machine;
t Be able to understand and interpret the Instruction
Manual and the safety requirements;
t Know the safety procedures and how they are im-
plemented;
t Be able to use the machine;
t Have understood the procedures of use as dened
by the machine's manufacturer.
1.5 Glossary and Pictograms
This paragraph lists uncommon terms or terms whose
meanings are dierent from those most commonly used.
Abbreviations are explained below, as well as the
meaning of pictograms describing the operator's
qualication and the machine status; they are used to
quickly and uniquely provide the information needed
to correctly and safely use the machine.

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1.5.1 GLOSSARY
User
The person or persons in charge of operating and
periodically maintaining and cleaning the machine as
indicated in the user manual.
Manufacturer's Qualied Technician
A specialist, specially trained and qualied to connect,
install and assemble the machine; use special equipment
(hoists, forklifts, etc.); perform routine or unscheduled
maintenance which would be particularly complicated
or potentially dangerous if performed by the User.
User or Qualied Technician Qualications
Minimum level of skills an operator must have to carry
out the operation described.
Danger
A potential source of injury or damage to health.
Dangerous area
Any area in the vicinity of the machine where the
presence of a person constitutes a risk to the safety and
health of that person.
Risk
Combination of the probability and severity of an
injury or damage to health that can arise in a hazardous
situation.
Guard
Machine component used specifically to provide
protection by means of a physical barrier.
Personal protective equipment (PPE)
Clothing or equipment worn by someone to protect
their health or safety.
Intended use
The use of the machine in accordance with the infor-
mation provided in the instructions for use.
Machine status
The machine status includes the mode of operation
and the condition of the machine's safety devices.
Residual risk
Risks that remain despite adopting the protective
measures integrated into the machine's design and
despite the guards and complementary protective mea-
sures that have been adopted.
Safety component
t required to perform a safety function;
t whose failure and/or malfunction endangers the
safety of persons.
1.5.2 PICTOGRAMS
PICTOGRAM DESCRIPTION
Electrical hazard
Equipotential hazard
High temperature hazard
Hand crushing hazard
Do not perform maintenance on moving
components
The use of protective gloves is mandatory
The use of eye protection is mandatory
The use of safety shoes is mandatory
It is mandatory to read the documentation
1.6 Guarantee
All of the machine's components are covered by a
12-month guarantee, except for electrical and electronic
components and parts prone to wear and tear.
Any work carried out on the machine electronics
when the machine is still live will automatically invalidate
any guarantee.

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2. SAFETY PRECAUTIONS
2.1 Level of training and
information required of the
technician
Qualied Technicians must be properly
trained and informed in order to connect
and assemble the machine; use special
equipment (hoists, forklifts, etc.); perform
routine or unscheduled maintenance, as
well as work on residual risks resulting from
these operations and while the machine is
in use.
A Qualied Technician must be able to
apply all good practices in compliance with
food hygiene principles.
2.2 Safety precautions
Even though the machine is provided
with all safety devices required to eliminate
possible risks for the User, there are still cer-
tain residual risks.
These so-called residual risks are related
to machine parts that may pose a risk to the
Technician, if used improperly, evaluated or
deactivated incorrectly, because the pre-
scriptions contained in this Manual were
circumvented.
The machine is also equipped with appro-
priate warnings placed on residual risk ar-
eas, which must be scrupulously observed.
Attention must be paid to the residual
risks that are present during the operations
described in the following paragraphs as
they cannot be eliminated:
2.3 Transport and handling
Hand crushing hazard
Handling operations must always and
exclusively be performed by qualied per-
sonnel and in compliance with the current
health and safety regulations.
Before starting the transport and/or
handling manoeuvres, check the route, di-
mensions needed, safety distances, places
suitable for placing the load down, and the
appropriate equipment for the operation.
Handling operations must be carried
out by at least 2 people, or with the help of
special lifting equipment.
In view of the substantial weight of the
equipment, exercise great caution during
the handling operations.
The manufacturer is not responsible for
any injury or damage caused by clothing,
lifting equipment and personal equipment
which was not suitable for the type of inter-
vention that the operator had to carry out.
The packaging material must not be left
within the reach of children, since it is a
potential source of danger.

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2.4 Installation
Electrical hazard
Equipotential hazard
High temperature hazard
Do not perform maintenance
on moving components
Installation must always and exclusively
be performed by qualied personnel and
in compliance with the current health and
safety regulations.
This appliance is to be considered com-
pletely safe only when it is connected to an
ecient earthing system which complies
with safety standards.
The electric system must be equipped
with a suitable GFCI (circuit breaker). It
is important to have these requirements
checked. If in doubt, have the system
carefully checked by qualied personnel.
The manufacturer cannot be considered
responsible for any damage caused by an
inadequate electric system.
Make sure that the supply power is
enough to supply the energy needed for
the machine to operate.
Perform the installation with the machine
disconnected from the power supply via the
main switch.
2.5 Commissioning
Electrical hazard
High temperature hazard
When using the electrical appliance,
several safety standards must be observed:
t Do not touch the appliance with wet or
damp hands or feet;
t Do not use the appliance barefooted;
t Do not pull the power cord to disconnect
the appliance.
Some parts of the machine can reach
high temperatures:
t Avoid contact with the dispensing group,
water spouts and steam nozzles;
t Do not place your hands or other body
parts near the steam, hot water or milk
dispensing nozzle tips.

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2.6 Maintenance and cleaning
Electrical hazard
High temperature hazard
The maintenance and cleaning opera-
tions must comply with the safety regula-
tions:
t Do not carry out maintenance with the
machine in operation;
t Do not immerse the machine in water;
t Do not spill liquids on the machine or use
water jets when cleaning;
t Do not allow maintenance and cleaning
operations to be carried out by children
or incompetent people;
t Do not perform maintenance and clean-
ing operations other than those de-
scribed in this manual.
When cleaning, pay attention to the parts
of the machine that can become hot:
t Avoid contact with the dispensing group,
water spouts and steam nozzles;
t Do not place your hands or other body
parts near the steam, hot water or milk
dispensing nozzle tips.
Only perform the maintenance and clean-
ing operations indicated in this manual.
If the problem cannot be resolved, switch
o the machine and contact the Manufac-
turer.
All maintenance operations must be car-
ried out when the power supply has been
turned o, the water mains has been closed
o, and the machine has completely cooled
down.
After maintenance and/or repair work,
the components that are used must ensure
that the hygiene and safety requirements
initially provided for the appliance are still
met. These are met by only using original
spare parts.When components which come
into contact with water or food are repaired
or replaced, a washing procedure has to be
carried out, as if it were the rst installation.
Any unauthorised tampering with any parts of
the machine renders any guarantee null and
void.

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3. MACHINE IDENTIFICATION
3.1 Make and model designation
The machine and model ID information
is found on the unit's NAMEPLATE and in
the provided EC DECLARATION OF CON-
FORMITY.
3.2 General description
The machine described in this Manual
consists of mechanical, electrical, and
electronic components which, when used
together, produce milk, coffee and wa-
ter-based beverages.
This product is manufactured in compli-
ance with the EU Directives, Regulations
and Standards indicated in the EC DECLA-
RATION OF CONFORMITY provided with the
machine.
This machine is designed and con-
structed to operate only after being prop-
erly connected to a hydraulic and electrical
network and placed so as to be sheltered
from atmospheric agents.
3.3 Customer service
CMA MACCHINE PER CAFFÈ S.r.l.
Via Condotti Bardini, 1 - 31058 SUSEGANA (TV) - ITALY
Tel. [phone] - Fax [phone]
Email: [email protected] -Website: www.astoria.com
3.4 Intended use
The espresso coee machine has been
designed for the professional preparation
of hot drinks such as teas, cappuccinos and
weak, strong and espresso coee, etc.
The appliance is not intended for do-
mestic use, it is intended for professional
purposes only.
The machine can be used under all the
conditions set forth, contained or described
in this document; any other conditions must
be considered dangerous.
The machine must be installed in a place
where its access is restricted to qualied
personnel only who have received suitable
training (coee shops, restaurants, etc.).

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PERMITTED USES
All uses compatible with the technical
features, operations and applications de-
scribed in this document which do not en-
danger the safety of users and technicians
or cause damage to the machine or its
surrounding environment.
AllusesnotspecicallymentionedinthisManual
areprohibitedandmustbeexpresslyauthorised
by the Manufacturer.
INTENDED USES
The machine has been designed exclu-
sively for professional use.
The use of products/ materials other than
those specied by the Manufacturer, which
can cause damage to the machine and be
dangerous for the operator and/or those in
close proximity to the Machine, is consid-
ered incorrect or improper.
CONTRAINDICATIONS OF USE
The machine must not be used:
t For uses other than those listed in para.
3.4, or for uses that dier from or are not
mentioned in this Manual;
t With materials other than those listed in
this Manual;
t With safety devices that have been dis-
abled or are not working.
INCORRECT USE OF THE MACHINE
The type of application and performance
that this machine has been designed
for, requires a number of operations and
procedures that cannot be changed, unless
previously agreed with the Manufacturer.
Only operations discussed in this document
are allowed; any operation not listed
and described herein is to be considered
improper and, therefore, hazardous.
IMPROPER USE
The only permitted uses are described
in the Manual; any other use is considered
improper and, therefore, hazardous.
GENERAL SAFETY FEATURES
The user must be aware of accident
risks, safety devices and the general safety
rules set forth in EU directives and by the
legislation of the country where the line is
installed.
The user must know how all the ma-
chine's devices work.
They must also have fully read this Man-
ual.
Maintenance work must be performed by
qualied technicians after the machine has
been properly assembled.
The tampering or unauthorised replace-
ment of one or more machine components,
the use of accessories which modify its use
and the use of materials other than those
recommended in this Manual, can cause
accidents.

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3.5 Machine diagram
1. ON switch
2. Hot water spout
3. Front commands
4. Cup warmer shelf
5. Warning indicators
6. Illuminated side panel
7. Scald protection
8. Steam nozzle
9. Adjustable foot
10. Steam knob
11. Flipping raised cup grilles
(raised group version).
12. Filter holder
13. Cup holder grille
14. Pressure gauge
15. Display
16. USB port
17. Steam wand push button panel (*)
18. Steam wand nozzle (*)
19. Side panel light switch
20. Work surface light switch
(*) Optional device
The USB stick exclusively provided to the Qualied Technicians is
the only stick that can be used in the USB port (7). Do not connect
externaldevices(iPhones,iPads,PCs,etc.)totheUSBportbecause
it could create serious machine software problems.
20
19
Figure A
1 2 3 4 5
678910111213
12
14
7
10
A
SAE version
SAE DISPLAY version
1 2 3 4 15 16
678910111213
17
14
18
10
A

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3.6 Internal components
3
5
4
6
7
1
10
8
9
11
12
2
13
1. Pressure switch (SAE)
2. Safety pressure switch (SAE DISPLAY)
3. Steam heating unit
4. Internal motor pump (if included)
5. Dispensing group
6. Drain tray
7. Volumetric dosing device
8. Motor pump/heating unit pressure gauge
9. ON switch
10. Electric heating element
11. Display (only for the SAE DISPLAY version)
12. Electronic control unit
13. Pressure transducer
(only for the SAE DISPLAY version)

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3.7 Front command push button panel
3.8 Steam wand push button panel
3.9 Warning indicators
3.10 Touchscreen display
1
espresso
2
espressos
1 medium
coee
2 medium
coees
1 large
coee
2 large
coees
Stop /
Programming /
Continuous
Hot
water
Manual
dispensing
Small dose Large dose
Heating unit water level LED:
t Steadily lit: water level OK
t Flashing slowly: heating-up
t Flashing quickly: lling up has stopped
Cup warmer LED
t Lit: on
t Unlit: o
Dispensing
circuit
pressure
Area for viewing
information
Informative area
and Menu access
Time and date
Heating unit pressure
Cup warmer indicator light
Menu button
Water
mains
pressure

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3.11 CE data and marking
The machine’s technical data is shown in the follow-
ing table:
TECHNICAL DATATABLE 2GR 3GR 4GR
120V 3100W
Max. power 230/400V 3900W 5600W 6600 W
240/415V 4200W 6000W 7100 W
Frequency 50/60 Hz
Heating unit 10,5/14 l 17/21 l 23 l
Safety valve calibration 1,9 bar
Heating unit operating
pressure 0,8 - 1,4 bar
Mains water pressure 1,5 - 5 bar MAX
Coee dispensing pressure 8 - 9 bar
Working environment
temperature 5 - 40°C 95° U.R.MAX
Sound pressure level < 70 dB
According to Directive 2006/42/EC, the machine bears
a CE marking, meaning that the Manufacturer declares,
under his own responsibility, that the unit is safe for
people and property.
The CE nameplate which provides the identication
data is axed to the base of the frame, under the drain
tray. Below is an example of a nameplate:
Via C. Bardini
,
1 SUSEGANA
(
TV
)
- ITALY
Tel. [phone] Fax [phone]
MADE IN ITALY
W
S/N: Mod.
Hz
Y
V
CMA MACCHINE PER CAFFÈ S.r.l.
MARCHIO COMMERCIALE
When contacting the Manufacturer, always provide
the following information:
t S/N - machine serial number;
t Mod. - machine model
t Y - year of manufacture;
The appliance data can also be found on the label
located on the machine's packaging.
IT is forbiddento removeordamagethe nameplate.Ifthis occurs,
replace it as a matter of urgency, dealing exclusively through the
Manufacturer.
The CE label is axed to the
base of the frame under the
drain tray.

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3.11.1 Steam heating unit
The heating unit is made of copper sheet metal (1).
The heat exchangers are assembled onto this unit and
are in turn connected to the dispensing group.The water
used for dispensing coee is taken directly from the heat
exchanger. During the dispensing process, cold water is
sent inside the exchanger by means of the motor pump.
Cold water and the pre-existing hot water are mixed to-
gether inside the heat exchanger, in order to obtain the
optimal water temperature for coee infusion.
The heating unit is electrically heated by an electric
heating element immersed in the water (2).
2
1
3.11.2 Overow device
The cover installed on the pressure relief valve makes
it possible to collect any water and steam which may leak
from the heating unit due to a malfunction and channel
it to the drain tray, via a special hose.
3.11.3 Pressure relief safety valve
The pressure relief safety valve has a calibra-
tion of 1.9 bar in order to ensure that the pres-
sure in the steam heating unit does not exceed
2.1 bar. Should a fault occur, the capacity of the
valve is such as to be able to eliminate all the
excess pressure in the heating unit.
Thesafetyvalveshould be checkedregularly as indicatedinChap.
9.3 on page 46.
Two safety valves are installed on all machines with 4 groups.
3.11.4 Expansion valve + check valve
This is a valve consisting of an expansion valve and
a check valve.
t Expansion valve (A):
the cold water sent from the pump to the heat ex-
changers is heated. This heating
causes an increase in the volume
of water. To limit pressure increases
in the hydraulic circuit, the valve
limits the maximum internal pres-
sure of the circuit to 12 Bar.
t Check valve (B):
its function is to prevent the water
from back-flowing into the ex-
changers in the hydraulic circuit.
3.11.5 Negative pressure valve
The purpose of the negative pressure valve
is to prevent liquids from back-owing through
the steam nozzle when they are being heated.
Furthermore, the excess air inside the heating unit
is removed during the machine's heating phase.
3.11.6 Pressure switch
The pressure switch makes it possible
to control the heating unit pressure by
activating or bypassing the heating el-
ement in the heating unit. Any pressure
switch calibration can be carried out with
the machine in operation by turning the
screw (6) located on the body of the
component (SAE) or inside (SAE DISPLAY).
A
B
6
SAE
SAE DISPLAY

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3.11.7 CTS group (with a thermosiphonic circuit)
In this system, the dispensing group (1) is heated
by a thermosiphonic circuit (2) connected to the heat
exchanger (3). The same water is used when dispensing
coee which ensures that all coees are the same tem-
perature:
t The activation of the solenoid valve and the pump
allows cold water to enter the exchanger (3) through
the injector (4);
t The heating unit water is carried from the exchanger
(3) to the group (4) for dispensing;
t The pump allows the water ow pressure to increase
to 8-9 bar for dispensing.
The injector (4) and the ow reducer (5) are important
components for the dispensing group’s operation. To in-
crease the coee extraction temperature, remove the ow
reducer (5) or replace it with one that has a bigger diame-
ter. To decrease the temperature, replace it with one that
has a smaller diameter. If necessary, the exchangers can be
replaced by removing the ange and disconnecting the
relative hydraulic circuit pipes. These operations should
be carried out when the machine has been switched o
and has cooled down: always replace the seals.
3
Water inlet
Coee
dispensing
5
34
DISPENSING IN PROGRESS
2
3
1
IDLE
3.11.8 Group with an EXTRACTABLE exchanger
The dispensing group heating is provided by direct
contact with the heating unit.The water used to dispense
coee is taken from a so-called "extractable" exchanger
which is immersed in the heating unit’s water:
t When the solenoid valve and pump activate, this
allows cold water to enter into the exchanger (1).
t The heating unit water is carried from the exchanger
(1) to the group (2) for dispensing;
t The pump allows the water ow pressure to increase
to 8-9 bar.
The version of the extractable exchanger for the
Italian market does not include the suction hose (3) and
seal (4).
If necessary, the exchanger can be replaced without
having to remove the ange: loosen the screws, remove
the dispensing group from the heating unit and remove
the exchanger. These operations should be carried out
when the machine has been switched o and has cooled
down: always replace the seals.
4
2
1
2
Water
inlet
Coee
dispensing

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3.11.9 Safety thermostat
The thermostat prevents any damage occurring to
the electrical heating element if there is no water in the
heating unit. The thermostat bulb (7) is located inside
a sheath (8) in the middle of the heating elements. The
thermostat contacts (9) are connected to the electric
heating element (10). If the electric heating element
is exposed due to a failure to ll the heating unit with
water, the temperature of the heating element increases
dramatically. At this point, the thermostat cuts the power
supply to the heating element in order to prevent dam-
age occurring.
10
911
7
8
To reset the thermostat, press the centre button (11). However,
before starting the machine up again, identify what prevented
the water from being fed into the heating unit.
3.11.10 Motor pump
THIS is a component that feeds
the machine, by raising the water
pressure to 8 - 9 bar in order to
dispense coee and automatically
ll the heating unit.
3.11.11 Electronic control unit
The electronic control unit (2) is the machine’s“brain”,
since it monitors and controls the appliance’s full oper-
ation.
The information concerning the installed software
(date and version) can be seen on the display when the
machine is turned on.
When the machine turns on, it performs a functional
test and reports information regarding the installed
software:
t XX.XX.XXXX: update date
t RY: revision number
3.11.12 Automatic Water Entry
The Automatic Water Entry system is designed to
check the water level of the heating unit. It consists of:
t A probe inserted into the heating unit (1), composed
of a stainless steel rod;
t An electronic control unit (2);
t A hydraulic circuit with a solenoid valve controlled
by the regulator.
The electronic control unit controls the level of water
in the heating unit.When the level of water in the heating
unit drops, the contact with the probe is interrupted.
The control unit sends an impulse to the inlet solenoid
valve and the motor pump, which are then activated
until the normal level of water in the heating unit has
been restored.
To avoid any ooding caused by machine malfunc-
tions or water leaks in the circuit, the electronic control
unit has a“Timeout”feature which cuts o the automatic
water lling function after a certain time (2 minutes).
When installing machines with three or four groups, the
initial water lling time may exceed the established time-
out limit. Should this occur, simply turn the machine o
and then back on to restore normal operating conditions.
FUNCTIONAL TEST
EVPLUS XX/XX/XXXX RX
1
2

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3.11.13 Volumetric dosing
The volumetric dosing device measures the quantity
of water sent to the group in order to dispense coee.
The dispenser generates electrical impulses which
are sent to the electronic control unit.
These impulses are read by the control unit and
counted while the dose is
being programmed.
The intermittent ashing
of the LED (X) indicates the
electrical pulse sent to the
control unit by the dosing
device.
3.11.14 Electronic push button panels
The electronic push button panels allow the coee
doses to be selected and programmed. They are con-
nected to the electronic control unit.
To use and programme these, please consult the user
manual.
3.11.15 Cup warmer
The cup warmer device (1) warms the cups before
they are used.
THE temperature can be adjusted by following the
instructions in the user manual.
1
X
3.11.16 Water lter
In the mains water, non-soluble salts
are present which cause limestone to
form in the heating unit and other parts
of the machine.
Drinking water can also contain
heavy metals and substances, such as
chlorine which are harmful to health.
The lter makes it possible to elim-
inate or substantially reduce the pres-
ence of these mineral salts.
The cartridge contained in the water
lter must be replaced at the frequency
specied by the manufacturer.
To use and maintain the water filter, follow the instructions
provided in para. 9.4 on page 50.
3.11.17 Water softener
The resin softener can be used as an
alternative to the water lter.
This component has the property
of retaining the calcium contained in
the water. For this reason, the resins
become saturated after a certain period
and must be regenerated with coarse
kitchen salt (NaCl, sodium chloride) or
special water softening salt. It is very im-
portant to regenerate the softener within the established
times. However, in locations where the water is very hard,
it will be need to be regenerated more frequently. The
same rule can be applied to locations where there is a
large consumption of hot water (for tea, etc.).
To use and regenerate the water softener, follow the instructions
provided in para. 9.5 on page 52.
3.11.18 Hot water spout
The hot water spout is connected to a heating unit
suction hose. Depending on the model, hot water can
be dispensed in two ways:
t Manually: by turning the adjustment knob on the
front of the machine;
t Automatically: by selecting a button connected to a
solenoid valve.

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3.11.19 Steam nozzle
The steam nozzle is connected to the top of the
heating unit. Adjust the dispensing setting by turning
the knob on the front of the machine.
3.11.20 Cappuccino maker (optional)
The cappuccino maker can be installed as an optional
extra directly onto the tap.This device can both heat and
froth the milk.To adjust and clean the cappuccino maker,
follow the instructions in the user manual.
Using the appropriate tting, attach the cappuccino
maker directly to the steam nozzle, by replacing the
original sprayer. Otherwise, attach it via the appropriate
hose, directly onto the machine's steam valve.
Ensure that the sealing gasket (1) is present and if
so, use Teon tape in order to prevent any steam loss
which could negatively eect the cappuccino maker's
operation.
Insert the milk suction hose (3) into the cappuccino
maker's appropriate coupling (2).
To change the temperature of the milk, attach the
reducers as shown in the table below.
1
3
2
Table of temperatures with and without reducers
(temperatures measured in a pre-heated cup)
Milk
temperature Not using a reducer
With aWHITE
reducer that
has a 1.9 mm
diameter
With a RED
reducer that
has a 1.8 mm
diameter
16°C room
temperature 55 - 60°C 60 - 68°C 68 - 75°C
6°C chilled milk 48 - 56°C 58 - 63°C 63 - 70°C