Astoria CORE 200 SAE 2 Gr User manual

Core200
EN ESPRESSO COFFEE MACHINE
Use and Maintenance Manual. TECHNICIANS' Instructions.
ASTORIA MACCHINE PER CAFFÈ S.R.L.
Via Condotti Bardini, 1 - 31058 SUSEGANA (TV) - ITALY - Tel. [phone] - Fax [phone] - www.astoria.com - [email protected]
2006/42/CE Direttiva macchine - Machinery Directive
2006/42/CE Directive machines - Maschinenrichtlinie
2006/42/CE Directiva sobre las máquinas - Directiva sobre máquinas
AEP
SAE

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.
Liability We are constantly committed to improving the accuracy of the information published in every Manual; some inac-
curacies, however, may occur. We assume no responsibility for any errors or omissions, or for damages resulting from the use
of this document.

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ESPRESSO COFFEE MACHINE
Use and Maintenance Manual. TECHNICIANS' Instructions.
I. SAFETY PRECAUTIONS
I.I LEVEL OF TRAINING AND
INFORMATION REQUIRED OF
MAINTENANCE TECHNICIAN
Maintenance Technician is a qualified
person that is specially trained and au-
thorised to carry out the machine con-
nection, installation, assembly and main-
tenance operations in compliance with
the applicable regulations.
MaintenanceTechnician must be properly
trained and informed as work on residual
risks resulting from these operations and
while the machine is in use.
A Maintenance Technician must be able
to apply all good practices in compliance
with food hygiene principles.
I.II SAFETY PRECAUTIONS
Even though the machine is provided with
all safety devices required to eliminate
possible risks for the Maintenance
Technician, there are still certain residual
risks.
These so-called residual risks are related
to machine parts that may pose a risk
to the Maintenance Technician, if used
improperly, evaluated or deactivated
incorrectly, because the prescriptions
contained in this Manual were
circumvented.
The machine is also equipped with
appropriate warnings placed on residual
risk areas, which must be scrupulously
observed.
Compliance with the installation and
machine’s safety standards is dependent
on the use, installation, maintenance
and correct operation of the machine.
These factors are the responsibility of
the purchaser, installer and installer’s
employer.
The installer’s employer is responsible for
hiring and training personnel to correctly
install, run and perform maintenance
work on the machine and its protection
systems:

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I.III TRANSPORT AND HANDLING
Hand crushing hazard
Handling operations must always and
exclusively be performed by Maintenance
Technician and in compliance with the
current health and safety regulations.
Before starting the transport and/or
handling manoeuvres, check the route,
dimensions 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 equip-
ment which was not suitable for the type
of intervention 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.
I.IV INSTALLATION
Electrical hazard
Equipotential hazard
High temperature hazard
Donotperformmaintenanceon
moving components
Installation must always and exclusive-
ly be performed by Maintenance Techni-
cian and in compliance with the current
health and safety regulations.
The appliance’s water supply must pro-
vide water which is suitable for human
consumption, and must conform with
the regulations in force in the place of
installation.
The installer must carry out the hydrau-
lic connections in accordance with the
hygiene norms and the hydraulic safety
norms for environmental protection in
force in the place of installation.
This appliance is to be considered com-
pletely safe only when it is connected to
an ecient earthing system which com-
plies 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 specialized person-
nel (electrician).

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Make sure that the supply power is
enough to supply the energy needed for
the machine to operate.
Perform the installation with the ma-
chine disconnected from the power sup-
ply via the main switch.
I.V COMMISSIONING
Electrical hazard
High temperature hazard
When using the electrical appliance,
several safety standards must be ob-
served:
• Do not touch the appliance with wet
or damp hands or feet;
• Do not use the appliance barefooted;
• Do not pull the power cord to discon-
nect the appliance.
Some parts of the machine can reach
high temperatures:
• Avoid contact with the dispensing
group, water spouts and steam noz-
zles;
• Do not place your hands or other body
parts near the steam, hot water or milk
dispensing nozzle tips.

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I.VI MAINTENANCE AND CLEANING
Theonlypersonnelwhocanaccesstheservice
areaarethosewhoareknowledgeableabout
and have practical experience using the
appliance, particularly in regards to safety
and hygiene.
Electrical hazard
High temperature hazard
Maintenance and cleaning operations
must comply with the safety regulations:
• Do not carry out maintenance with the
machine in operation;
• Do not immerse the machine in water;
• Do not spill liquids on the machine or
use water jets when cleaning;
• Do not allow maintenance and clean-
ing operations to be carried out by
children or incompetent people;
• Do not perform maintenance and
cleaning operations other than those
described in this manual.
When cleaning, pay attention to the
parts of the machine that can become
hot:
• Avoid contact with the dispensing
group, water spouts and steam noz-
zles;
• Do not place your hands or other body
parts near the steam, hot water or milk
dispensing nozzle tips.
Only perform the maintenance and
cleaning operations indicated in this
manual.
If the problem cannot be resolved,
switch o the machine and contact the
Manufacturer.
All maintenance operations must be
carried out when the power supply has
been turned off, the water mains has
been closed off, and the machine has
completely cooled down.
After maintenance and/or repair work,
the components that are used must en-
sure that the hygiene and safety require-
ments 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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Table of contents
1. INTRODUCTION.......................................................................8
1.1 Guidelines for reading the Manual........................................ 8
1.2 Storing the Manual ............................................................... 9
1.3 Method for updating the Instruction Manual........................ 9
1.4 Recipients ............................................................................. 9
1.5 Glossary and Pictograms....................................................... 9
1.6 Guarantee ........................................................................... 10
2. MACHINE IDENTIFICATION ....................................................11
2.1 Make and model name ....................................................... 11
2.2 General description............................................................. 11
2.3 Customer service................................................................. 11
2.4 Intended use....................................................................... 11
2.5 Machine diagram................................................................ 13
2.6 Data and marking ............................................................... 14
2.7 Push-button panels............................................................. 15
2.8 Internal components........................................................... 15
3. TRANSPORT AND HANDLING ................................................20
3.1 Safety precautions .............................................................. 20
3.2 PPE features........................................................................ 20
3.3 Weight................................................................................ 20
3.4 Handling the packed machine............................................. 20
3.5 Unpacking the machine ...................................................... 20
4. STORAGE ..............................................................................21
4.1 Overview............................................................................. 21
4.2 Stoccaggio della macchina dopo il funzionamento ............. 21
5. INSTALLATION ......................................................................21
5.1 Safety precautions .............................................................. 21
5.2 PPE features........................................................................ 21
5.3 Environmental conditions ................................................... 22
5.4 Installation and operation spaces........................................ 22
5.5 Support base....................................................................... 22
5.6 Drilling the support base..................................................... 24
5.7 Hydraulic connection .......................................................... 24
5.8 Electrical connection........................................................... 25
6. COMMISSIONING..................................................................26
6.1 Safety precautions .............................................................. 26
6.2 Grinding and dosing............................................................ 26
6.3 Preparing the lter holders ................................................. 26
6.4 Raised cup grilles ................................................................ 26
6.5 Dispensing compartment lighting ...................................... 26
6.6 Cup warmer ........................................................................ 27
6.7 Autosteamer ....................................................................... 27
6.8 Machine initial start-up ...................................................... 28
6.9 Turning o the machine...................................................... 28
6.10 Replacing the water............................................................ 28
7. PROGRAMMING....................................................................29
7.1 Coee doses........................................................................ 29
7.2 Autosteamer ....................................................................... 29
7.3 Hot water (SAE Version) ...................................................... 30
7.4 Pre-set values ..................................................................... 30
8. MAINTENANCE AND CLEANING.............................................31
8.1 Safety precautions .............................................................. 31
8.2 PPE features........................................................................ 31
8.3 Maintenance....................................................................... 31
8.4 Malfunctions and solutions................................................. 35
8.5 Water lter maintenance .................................................... 37
8.6 Water softener regeneration............................................... 39
8.7 Cleaning operations............................................................ 40
9. SPARE PARTS........................................................................42
10. DECOMMISSIONING..............................................................43
10.1 Short period of machine inactivity...................................... 43
10.2 Long period of machine inactivity....................................... 43
11. SDISASSEMBLY.....................................................................43
12. DISPOSAL.............................................................................43
12.1 Disposal information........................................................... 43
12.2 Environmental information................................................. 43
13. WIRING DIAGRAMS ..............................................................44
13.1 Machine connection ........................................................... 44
13.2 Electronic board .................................................................. 45
13.3 Connector connection ........................................................ 47
13.4 Connection of push-button ................................................ 48
13.5 Connection LED power supply............................................. 48
13.6 Steam connection ............................................................... 49
14. HYDRAULIC DIAGRAMS.........................................................50
14.1 COMPATTAVersion .............................................................. 50
14.2 AEP/2Version ..................................................................... 51
14.3 SAE/2Version...................................................................... 52

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1. INTRODUCTION
Read this manual carefully. It provides important
safety information to the MaintenanceTechnician regard-
ing the operations 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-
observance of the requirements listed in this manual.
Beforeoperatingonthemachine,read theinstructions contained
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 released to the market.
We encourage the MaintenanceTechnicians 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
UNITS 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:
• A safety risk for those operating the machine;
• Injury, including serious injury (in some cases even
death);
• Loss of the guarantee;
• 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 MaintenanceTechnician's request, the manu-
facturer 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 MaintenanceTechnicians
the chapters aected by the changes or a revision of the
entire Manual.
It is the Maintenance Technicians' responsibility, to
replace 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.
IftheManualshouldbecomeillegibleorotherwisehardtoconsult,
Maintenance Technicians are obliged to request a new copy from
the Manufacturer before carrying out any work on the machine.
ItisabsolutelyforbiddentoremoveorrewritepartsoftheManual.
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 Maintenance 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.
This manual is also available on the manufacturer’s website.
1.4 Recipients
This Manual is intended for the Maintenance Techni-
cians, to whom the following operations pertaining to
the machine are assigned:
• Transport and handling;
• Storage;
• Installation;
• Commissioning;
• Maintenance;
• Cleaning;
• Spare part replacement;
• Emergency operations and faults;
• Decommissioning;
• Disassembly;
• Disposal.
RECIPIENT QUALIFICATIONS
The machine is intended for a professional non-gener-
alised use, therefore the MaintenanceTechnicians must:
• Have attended the training courses organised by the
Manufacturer relating to the type of machine;
• Be aged 18 and over;
• Be physically and mentally t to use the machine;
• Be able to understand and interpret the Instruction
Manual and the safety requirements;
• Know the safety procedures and how they are imple-
mented;
• Be able to use the machine;
• 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 cor-
rectly and safely use the machine.
1.5.1 GLOSSARY
User
A person in charge of operating the machine and
performing the routine cleaning operations indicated
in the User Manual.

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Maintenance Technician
A qualied person that is specially trained and autho-
rised to carry out the machine connection, installation,
assembly and maintenance operations in compliance
with the applicable regulations.
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
- required to perform a safety function;
- 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. MACHINE IDENTIFICATION
2.1 Make and model name
The machine and model ID information
is found on the unit's NAMEPLATE and in
the provided EC DECLARATION OF CON-
FORMITY.
2.2 General description
The machine described in this Manual
consists of mechanical, electrical, and
electronic components which, when used
together, produce milk, coee and water-
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 construct-
ed to operate only after being properly
connected to a hydraulic and electrical net-
work and placed so as to be sheltered from
atmospheric agents.
2.3 Customer service
2.4 Intended use
The espresso coee machine has been
designed to professionally prepare hot
drinks such as tea, 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.).
ASTORIA MACCHINE PER CAFFÈ S.R.L.
Via Condotti Bardini, 1 - 31058 SUSEGANA (TV) - ITALY
Tel. [phone] - Fax [phone]
E-mail: ser[email protected] -Web-site: www.astoria.com

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PERMITTED USES
All uses compatible with the techni-
cal features, operations and applications
described in this document which do
not endanger the safety of users 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:
• For uses other than those listed in para.
3.4, for dierent uses or uses not men-
tioned in this Manual;
• With materials other than those listed in
this Manual;
• With safety devices that have been dis-
abled or are not working.
INCORRECT USE OFTHE MACHINE
The type of application and performance
that this machine has been designed for,
requires a number of operations and pro-
cedures that cannot be changed, unless
previously agreed with the Manufacturer.
Only operations discussed in this docu-
ment 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
Maintenance Technician 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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2.5 Machine diagram
1. Manual dispensing button.
2. Hot water dispensing button.
3. Work surface LED switch.
4. Hot water dispensing spout.
5. Steam nozzle.
6. Scald protection.
7. Adjustable foot.
8. Pressure gauge.
9. Power switch.
10. Heating unit level warning light.
11. Power indicator light.
12. Push-button panel.
13. Service Push-button panel.
14. Steam knob.
15. Hot water knob (Compact).
16. Display crono (optional).
17. Cup holder shelf.
18. Filter holder.
19. Coee dispensing spout.
20. Raised cup grille.
21. Cup holder grille.
22. Autosteamer nozzle (optional).
23. Cup heater switch (optional).
24. Cup heater indicator light (optional).
1 2
0
104 7
5
9
5
6
1421113 1
6
14
2GR AEP
1414
1 2
0
104 72324
5
9
5
6
1312113 12 16
6
2GR SAE
2
4
15
2GR SAE COMPACT
14
10 7
9
5
6
121113
17
212268 1918 20
2GR AUTOSTEAMER

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2.6 Data and marking
The machine’s technical data is shown in the following
table:
Model COMPACT 2 GR. 3 GR.
Voltage (V) 220/380 230/400 240/415 220/380 230/400 240/415 220/380 230/400 240/415
Frequency (Hz) 50/60
Max. power (W) 2.600 2.800 3.000 3.400 3.700 4.000 4.800 5.300 5.700
Boiler (lt) 7 10,5 17
Width (mm) 565 mm 745 mm 985 mm
Depth (mm) 475 mm 475 mm 475 mm
Height (mm) 511 mm 511 mm 511 mm
Net weight / Gross weight (kg) - 61 / 77 90 / 110
Safety valve calibration 0.19 MPa (1.9 bar)
Heating unit operating
pressure 0.08 - 0.14 MPa (0.8 - 1.4 bar)
Mains water pressure 0.15 - 0.6 MPa max (1.5 - 6 bar max)
Coee dispensing pressure 0.8 - 0.9 MPa (8 - 9 bar)
Workingenvironmenttem-
perature 5 - 35 °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:
When contacting the Manufacturer, always provide
the following information:
• S/N - machine serial number;
• Mod. - machine model
• Y - year of manufacture;
The appliance data can also be found on the label
located on the machine’s packaging.
Itis forbidden to removeordamagethenameplate. If thisoccurs,
replace it as a matter of urgency, dealing exclusively through the
Manufacturer.
The CE label is axed
underneath the drain tray.
Via C. Bardini
,
1 SUSEGANA
(
TV
)
- ITALY
Tel. [phone] Fax [phone]
MADE IN ITALY
W
S/N: Mod.
Hz
Y
V
ASTORIA MACCHINE PER CAFFÈ S.R.L.
MARCHIO COMMERCIALE

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2.7 Push-button panels
2.8 Internal components
24. Pressure switch.
25. Volumetric dosing device.
26. Dispensing group.
27. Drain tray.
28. Fuse.
29. Electronic control unit air pump (18V).
30. Electronic control unit.
31. Heating element.
32. Boiler.
33. Motor pump.
34. Distribution.
Autosteamer
1 espresso 2 espressos Autosteamer
1 Long 2 Longs
Coee
1 espresso 2 espressos
Stop /
Programming
1 Long 2 Longs
Services
Manual
dispensing
Manual
dispensing
Hot Water
24
33
34
29
25
27
28
31
26
30
32

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2.8.1 Group
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 dispens-
ing coee which ensures that all coees are the same
temperature:
• The activation of the solenoid valve and the pump
allows cold water to enter the exchanger (3) through
the injector (4);
• the heating unit water is carried from the exchanger
(3) to the group (4) for dispensing;
• 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 operation of the dispensing group. To
increase the coee extraction temperature, remove the
ow reducer (5) or replace it with one that has a bigger
diameter. 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.
.
2.8.2 Boiler
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 mo-
tor pump. Inside the heat exchanger, cold water and the
pre-existing hot water are mixed together 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).
2.8.3 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..
2.8.4 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
Water inlet
Coee
dispensing
5
34
DISPENSING IN PROGRESS
2
3
1
IDLE
2
1

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2.8.5 Pressure switch
The pressure switch makes it pos-
sible to control boiler pressure by
activating or bypassing the heating
element in the boiler. Any calibra-
tion of the pressure switch which
may be required can be carried out
with the machine in operation by
means of the screw (24a) located on
the body of the component.
2.8.6 Expansion valve + check valve
This is a valve consisting of an
expansion valve and a check valve.
• Expansion valve (34a): the cold
water sent from the pump to the
heat exchangers 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 pressure of the circuit
to 12 Bar.
• Check valve (34b): its function is to prevent the
water from back-owing into the exchangers in the
hydraulic circuit.
2.8.7 Electronic control unit
Its purpose is to electronically control
the coffee dose via the water flowing
through the dosing device and to check
that the heating unit is being lled with
water.
2.8.8 Volumetric dosing device
The volumetric dosing de-
vice measures the quantity of
water sent to the group in order
to dispense coee.
The dosing device gener-
ates electrical impulses which
are sent to the electronic con-
trol unit.
These impulses are read by the control unit and
counted while the dose is being programmed.
The ashing LED light (25a) indicates that the electri-
cal impulse has been sent from the dosing device to the
control unit.
2.8.9 Motor pump
This is a compo-
nent that feeds the
machine, by raising
the water pressure to
0,8 - 0,9 MPa (8 - 9 bar)
in order to dispense
coffee and automa-
tically ll the heating
unit.
2.8.10 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 malfun-
ction and channel it
to the drain tray, via a
special hose.
2.8.11 Steam nozzle
LThe steam nozzle is connected to the top of the boi-
ler. Depending on the model, steam can be supplied by
turning the adjustment knob on the front of the machine.
2.8.12 Hot water nozzle
The hot water nozzle is connected to a suction pipe
of the boiler. Depending on the model, hot water can be
supplied in two ways:
• Manually: by turning the adjustment knob on the
front of the machine;
• Automatically: by selecting a button connected to a
solenoid valve.
24a
34b
34a
25a

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2.8.13 Automatic Water Entry
The Automatic Water Entry system is for checking the
boiler level. It is composed of:
• probe inserted in the boiler (F) composed of a stain-
less steel rod;
• standard control unit, electronic;
• hydraulic circuit with a solenoid valve controlled by
the regulator.
The electronic control unit controls the level of water
in the boiler. When the level of water in the boiler drops,
the contact with the probe is interrupted. The control
unit sends and impulse to the entry solenoid valve and
to the motor pump, which act to restore the normal level
of water in the boiler.
To avoid possible ooding due to machine malfunc-
tions or leaks in the hydraulic circuit, the electronic
control unit includes a “Time-out” feature that cuts o
automatic lling after a certain time (2 minutei).
2.8.14 Water lter
Mains water contains insoluble salts,
which cause the build-up of lime scale de-
posits in the boiler and other parts of the
machine.
Drinking water can also contain traces of
heavy metals and substances, such as chlo-
rine, harmful to health.
The lter makes it possible to eliminate or
substantially reduce the presence of these
mineral salts.
The cartridge contained in the water lter
must be replaced at the frequency specied
by the manufacturera con la frequenza indi-
cata dal costruttore.
For the water lter use and maintenance, follow the provisions
in par. 8.5.
2.8.15 Safety thermostat
The thermostat allows you to avoid damage to the
electrical resistance in case of lack of water in the boiler.
The thermostat bulb (J) is located inside a sheath (H)
placed at the center of resistance (G). The contacts of the
thermostat are connected to the electrical resistance. If
the electrical resistance is exposed due to failure to load
water to the boiler, the temperature of the resistance
increases dramatically. At this point, the thermostat inter-
rupts the power supply to the resistance thus preventing
damage.
To reset the thermostat, press the center button (K). However,
before trying to operate the machine, verify the causes of the
blockade of the water feeding the boiler.
2.8.16 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 important
to regenerate the softener within the
established times. However, in locations where water
is very hard, it will be necessary to regenerate it more
frequently. The same is true of places in which there is
a large consumption of hot water for tea or other uses.
For the softener use and regeneration, follow the provisions in
par. 8.6.
FJK
H
G

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2.8.17 Cup heate
The cup heating device is for heating cups before
they are used.
2.8.18 Autosteamer
The "Autosteamer" system, supplied with certain ver-
sions with display, can be used for automatically heating
and foaming milk at the programmed temperature. Be-
low is listed the operating principle of the autosteamer :
• Press the hot frothed milk (1) button and wait
for the steam to be dispensed;
• opening of the solenoid valve (2) with consequent
ow of steam from the boiler to the autosteamer
nozzle;
• simultaneously, the system activates the air pump
(6) which is controlled by the control unit (3) and
powered by a processor (8). The regulation of milk
foaming can be made by changing the amount of air
intake operating the valve (5);
• after passing through the non-return valve (4) the air
mixes with the steam in the "Mixing interface" (11);
• leakage of steam from the nozzle (9);
• the probe (10) connected to the electronic unit of the
machine detects the temperature of the heating milk;
• Once the set temperature of the milk has been
reached, the electronic system blocks the ow of air
and steam.
The control unit (3) it's regulated to 18V.
2
910
3
11
42
6
8
7

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3. TRANSPORT AND HANDLING
3.1 Safety precautions
Carefully read the instructions provided in chapter I.
3.2 PPE features
When transporting the machine, the following PPE
is required:
The use of protective gloves is mandatory
The use of safety shoes is mandatory
3.3 Weight
MODEL COMPATTA 2 GR 3 GR
Maximum gross
weight - 77 kg 110 kg
3.4 Handling the packed machine
Upon arrival, the machine must be unloaded and
handled with care, carefully following the instructions
on the packaging, or those contained in this Manual.
It is very important to check that the maximum load capacity of
each piece of lifting equipment is at least equal to the weight of
the loads to be lifted, to which must be added the safety margins
which are required by current standards.
3.5 Unpacking the machine
• Only remove the ma-
chine from its packa-
ging when it is ready
to be installed, in order
to prevent accidental
collisions which could
damage it:
• Open the packaging, ta-
king care not to damage
the machine;
• Remove and take out
the machine guards and
equipment inside the
packaging;
• Remove the machine;
• Dispose of the packaging in compliance with the
current waste regulations.
After unpacking the machine, check that there are no damaged
parts due to transport or missing parts. Should there be any,
immediately inform (no later than 7 days after delivery) the
CARRIER and MANUFACTURER, communicating the machine data
and providing photographic evidence:
We recommend that you keep the packaging until the guarantee
has expired.
Wood, nails, staples, cardboard: non-polluting material which
must be recycled properly.
Plastic: polluting material that must not be burned (danger of
toxic fumes), nor disposed of as normal waste; to be disposed of
according to current regulations.