La Marzocco Strada AV User manual

manual
strada av
The Strada AV is characterized by its underlying mechanical features
and design of the Strada. The initials “AV” refer to a feature whereby
brewing is activated by a three button keypad where the doses
are counted by a owmeter for each group. This model includes
proportional steam valves, both featuring anti-resuction valves.

strada av
Operating Manual V2.0 - 12/2016
MAN.16.1.02
EN
certications available:
La Marzocco S.r.l.
Via La Torre 14/H
Località La Torre
50038 Scarperia e San Piero
(Firenze) - ITALIA
www.lamarzocco.com
[email protected]
T: [phone]
F: [phone]
Chapters
1. General Warnings and Safety Specications
2. Denition of Available Models
3. Installation
4. Machine Operation and Coffee Preparation
5. Dispensing Steam and Hot Water
6. Maintenance and Periodic Cleaning Operations
7. De-commissioning and Demolition
8. Mandatory Maintenance and Check-up Operations
9. Precision Scale
10. Software Programming Guide
page 3
page 7
page 10
page 17
page 20
page 21
page 23
page 24
page 25
page 28

EN
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1. General Warnings and Safety Specications
1) Important safeguards
• The weighted sound
pressure level of the
machine is lower than
70dBA.
• Use, cleaning and
maintenance of this coffee
machine are realized
by people (including
children more than 8
years of age) with reduced
physical, sensory or mental
capabilities, or lack of
experience and knowledge,
as long as they have
been given supervision or
instructions concerning
the use of the appliance
by a person responsible
for their safety and if they
understand dangers.
• Children should be
supervised to ensure that
they do not play with the
appliance.
• Keep the appliance and
its cord out of the reach of
children less than 8 years
of age.
2) This operating manual
is an integral and essential
part of the product and
WARNING
This machine is for professional
use only and should be installed
in locations where its use and
maintenance is restriced to
trained personnel. Children are
forbidden to operate or play with
the machine.
WARNING
The Coffee machine must be
placed in a horizontal position on
a counter higher than 80 cm from
the ground.
CAUTION
As already mentioned in
the preceding notes, the
manufacturer shall not be held
responsible for damage to
objects, animals and/or people
whenever the machine has not
been installed according to the
instructions contained in this
manual, and is not used to do
what it was designed for (i.e.
preparing coffee and hot drinks).
WARNING
This machine is not suitable
for outdoor use. Jets of water
should not be used to clean the
machine, nor should it be placed
where water jets are used.

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4
must be supplied to users.
Users are asked to read
the enclosed warnings and
cautions carefully, as they
provide valuable information
concerning safety during
installation, operation and
maintenance. This manual
must be kept in a safe
place and be available for
consultation to new and
experienced users alike.
3) Ensure product’s integrity
by inspecting the packaging,
making sure it presents no
signs of damage which might
have affected the enclosed
machine.
4) Check the machine’s
integrity after having carefully
removed the packaging.
Note: In case of doubt, do not go
on any further and contact your
dealer or retailer immediately. They
will send out specialized personnel
authorized to perform service on
the espresso machine.
5) Packaging (boxes, plastic
bags, foam parts and whatever
else) must not be left around
within easy reach of children,
due to the potential danger it
represents, nor be discarded
in the environment.
6) Check to see that data on
the rating plate corresponds
to those of the main electrical
supply which the machine will
be hooked up to.
7) The equipment must be
installed to comply with the
applicable federal, state or
local electrical and plumbing
codes. The installation
also must comply to the
manufacturer’s instructions,
and must be performed by
qualied and authorized
personnel.
8) Incorrect installation may
cause for injury/damages to
people, animals or objects, for
which the manufacturer shall
not be held responsible.
9) Safe electrical operation of
this device will be achieved
only when the connection to
the power outlet has been
completed correctly and
in observance of all local,
national, and international
electrical codes and safety
regulations, and particularly
by grounding the unit.
Make sure grounding has

EN
5
been done properly as it
represents a fundamental
safety requirement. Ensure
qualied personnel check
such connection.
10) Furthermore, you must
ensure that the capacity of
the available electrical system
is suitable for the maximum
power consumption indicated
on the espresso machine.
11) We do not recommend
using adapters, multiple
plugs and/or extension cords.
If you cannot avoid using
them, make sure that they are
exclusively of the kind which
conforms to local, national,
and international electrical
codes and safety regulations,
being careful not to exceed
the power and current ratings
indicated on such adapters
and extension cords.
12) This device must be used
exclusively for the functions it
has been designed and built
for. Any other application is
inappropriate and dangerous.
The manufacturer shall not be held
responsible for any damages caused
by improper and/or irrational use.
This machine should not be
installed in kitchens.
13) Using any electrical
device requires that certain
fundamental rules be
observed. In particular:
• do not touch the device
with wet or humid hands
and feet;
• do not use the device while
having no shoes on your
feet;
• do not use extension cords
in bath or shower rooms;
• do not unplug the device
from the power outlet by
pulling on the power supply
cable;
• do not expose the device to
atmospheric agents (rain,
sun, etc.);
• do not allow children or
untrained people to use
this device;
• do not clean the control
panel with a wet cloth since
it is not watertight.
14) Before carrying out any
maintenance and/or cleaning
operations, turn the main
switch, which is located on
the front left of the machine,
to the “0” or “OFF” position,
and disconnect the machine
from the electrical network

EN
6
by unplugging the cord or
by switching off the relative
circuit breaker. For any
cleaning operation, follow
exclusively the instructions
contained in this manual.
15) In case the machine is
operating in a faulty manner
or breaks down, disconnect
it from the electrical network
(as described in the preceding
point) and close the water
supply valve. Do not attempt
to repair it. Contact a qualied
and authorized professional to
perform any repair. Any repairs
must be performed exclusively
by the manufacturer or by
an authorized centre using
only original parts. Non
compliance with the above
could compromise the safe
operation of the machine.
16) You should plan to
make use of an omnipolar
connector during installation,
as required by local, national,
and international electrical
codes and regulations.
17) In order to avoid dangerous
overheating problems, it is
recommended that the power
supply cable be fully unfurled.
18) Do not obstruct air intake
and exhaust grilles and, in
particular, do not cover the
cup warmer tray with cloths or
other items.
19) The machine’s power
supply cable must not be
replaced by users. In case the
power supply cable becomes
damaged, shut off the
machine and disconnect the
machine from the electctrical
network by switching off the
relative circuit breaker and
close off the water supply;
to replace the power supply
cord, contact qualied
professionals exclusively.
STRADA AV 2 groups
A [mm]
B [mm]
C [mm]
WEIGHT [kg]
800
70
675
475
20) Common Dimensions, Weights,
and Features
3 groups
1000
91
675
475
B A
C

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2. Denition of Available Models
This operating manual refers exclusively to the following models, of our own manufacture:
STRADA, model AV 3 groups
1Main Switch
2Pressure Gauge (steam boiler)
3Pressure Gauge (coffee boiler)
4Brew Groups
5Cup Warmer Button
6Tea Water Button
7Digital Display
8Steam Wand
9Steam Wand Lever
10 Hot Water Wand
11 Removable Drain Tray
12 Group #1 Programming Keypad
13 Hot Water Mix Valve
Legend
Fig. 1 - Model AV with 2 or 3 groups
For additional information on electronics,
keypads, and software programming,
please see the section entitled Software
Programming your Espresso Machine.
1
2 3
444
5 67 88
9910
1112 13

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1) General Description
The machine is built in 2 and 3 coffee
group versions and is essentially composed
of the following parts:
• Steam Boiler (produces steam and hot
water);
• Coffee (“saturated”) boiler;
• Brewing groups;
• Exterior Cover;
• Water pump.
2) Description of the various parts
• Steam Boiler
The Steam Boiler consists of a cylindrical
tank, of varying length according to the
number of coffee groups, which is made
of AISI 300 series stainless steel. Each
unit is subjected to a hydraulic test, at a
pressure of 6 bar, and has an operating
pressure of 1.3-1.5 bar. The following
is a list of effective volumes and power
ratings according to the number of groups
installed:
2 groups 8,2 liters 3000 Watts
3 groups 11,8 liters 4000 Watts
Covers are welded at either end of the
cylindrical tank and on one of them there
is a housing for the water heating element,
which allows the steam boiler to reach
operating pressure within approximately 25
minutes. Operating pressure is maintained
by temperature probe and PID controller.
The steam boiler has various ttings used
for safety devices, for supplying hot water
and steam, and for the heating element.
Composed of AISI 300 series stainless
steel tube. Heating is accomplished
through an immersion-type plated heating
element.
• Operating pressure of 1.3-1.5 bar,
controlled automatically through a
pressure switch or a temperature
probe, adjusted to open the heating
element supply circuit at 1.5 bar and
close it at 1.3 bar.
• The pressure is displayed by means of
a pressure gauge with a scale of 0 to 2
bar.
• Safety device, based on an expansion
type mechanical valve, with counter-
acting spring adjusted to 1.8 bar.
• Testing: hydraulic test at 4.5 bar
performed on ready-to-use small
boilers, at our factory.
• Coffee Boiler
The Coffee Boiler consists of a cylindrical
tank made of AISI 300 series stainless
steel. One each group (hot water generator
for brewing coffee).
Each unit is subject to a hydraulic test,
at a pressure of 18 bar, and has an
operating pressure of 9 bar. The following
is a list of effective volume and power
ratings according to the number of groups
installed:
2 groups 2 x 1,3 liters 2 x 800 Watts
3 groups 3 x 1,3 liters 3 x 800 Watts
Covers are installed at either end of the
cylindrical tank and on one of them there
is housing for the water heating elements.
The temperature of the coffee boiler is
maintained by an electronic temperature
controller (PID capable) with an accuracy
of 0.2°C. The brewing groups are installed
on the boiler.
Composed of an AISI 300 series stainless
steel tube. Heating is accomplished
through an immersion-type plated heating
element.
• Operating temperature 95°C
(adjustable), controlled automatically
by an electronic temperature controller
with an accuracy of 0.2 °C. Operating
pressure of 9 bar.
• Pressure is displayed through a pressure
gauge with a scale from 0 to 18 bar.
• Safety device, based on an expansion
type mechanical valve, with
ounteracting spring adjusted to 13 bar.
• Testing: Hydraulic test at 18 bar
performed on ready-to-use small boilers,
at our factory.

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• Brewing groups
They consist of a precision casting made
of stainless steel. The brewing group
accepts the portalter used to hold the
ground coffee; the espresso ows through
the brewing group, through the portalter
basket, through the portalter spout, and
into the cup(s) after the brewing button
has been pressed.
• Exterior cover
The exterior consists of painted and
stainless sheet steel panels. To provide
good aesthetics, to optimize ergonometrics
for the operator and to reduce the chance
of damage to a minimum.
• Water pump
The rotary vane pump, is installed on the
water supply tubing and is set up to operate
anytime the coffee groups are activated,
and through an autoll system whenever
the water boiler needs to be replenished.
• Machine CE plate:
• Machine ETL plate:
STRADA 3AV ST000000 01/16
220-240 7324 32 50/60
0.9
1.3x3 11.8
STRADA 3AV
161
ST000000
01/16 29-33

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3. Installation
LA FIGURA AFFIANCO DESCRIVE COME
COLLEGARE OGNI FILO ALLA SPINA.
RISPETTARE ANCHE LE NORME FEDERALI,
STATALI O LOCALI VIGENTI.
MODELLO/SERIE GRUPPO V/Hz
POTENZA
NOMINALE
(W)
INPUT
NOMINALE
(A)
POTENZA
CALDAIA
CAFFE’
POTENZA
CALDAIA
VAPORE
POTENZA
TOTALE
DIMENSIONE CAVO
ALIMENTAZIONE
ELETTRICA (mm²)
STRADA AV
2GR
A
C220-240V/60H
z
AC208-240/60Hz
AC380/50Hz
4600
20-22
1600 3000 4600
12
PER DETTAGLI
3GR 6400 2400 4000 6400
VEDERE I
COLLEGAMENTI
ELETTRICI
ATTENZIONE
AC220-240V/60Hz
AC208-240/60Hz
AC380/50Hz
23
25-29
16
30,5
THE DETAILS ON THE LEFT DESCRIBE
HOW TO CONNECT EACH WIRE TO THE PLUG.
RESPECT ALSO THE LOCAL SAFETY
REGULATIONS.
MODEL/SERIES GROUP V/Hz
RATED
POWER
(W)
RATED
INPUT
(A)
COFFEE
BOILER
WATTAGE
STEAM
BOILER
WATTAGE
TOTAL
WATTAGE
POWER CORD
SIZE (mm²)
STRADA AV
2GR
A
C220-240V/60H
z
AC208-240/60Hz
AC380/50Hz
4600
20-22
1600 3000 4600
12
SEE ELECTRICAL
3GR 6400 2400 4000 6400
CONNECTIONS
FOR DETAILS
WARNING
AC220-240V/60Hz
AC208-240/60Hz
AC380/50Hz
23
25-29
16
30,5
1 X BLU (NEUTRO)
1 X MARRONE (FASE)
1 X GIALLO & VERDE (TERRA)
CAVO ALIMENTAZIONE ELETTRICA:
5 X FILI
380V
1 X MARRONE (FASE)
1 X GRIGIO (FASE)
1 X NERO (FASE)
1 X BLU (NEUTRO)
1 X GIALLO & VERDE (TERRA)
3 X FILI
220V
POWER CORD:
1 X BLUE (NEUTRAL)
1 X BROWN (PHASE)
1 X YELLOW & GREEN (GROUND)
5 X WIRES
380V
1 X BROWN (PHASE)
1 X GRAY (PHASE)
1 X BLACK (PHASE)
1 X BLUE (NEUTRAL)
1 X YELLOW & GREEN (GROUND)
3 X WIRES
220V
140 mm
5,5 in. 12,5 mm
0,5 in.
POSITION OF THE HIGH LEGS MACHINE
775 mm (2 groups)
30,5 in. (2 groups)
975 mm (3 groups)
38 in. (3 groups)
55 mm
2,1 in.
130 mm
5,1 in.
280 mm
11 in.
425 mm
16,7 in.
HERE THE POSITION
OF THE DRAIN TUBE
HERE THE POSITION OF THE POWER CORD AND
WATER INLET HOSES
210 mm
4 in.
FROM ∅80 TO ∅100 mm
FROM ∅3 in. TO ∅4 in.
HERE THE POSITION WHERE WE
SUGGEST TO MAKE THE HOLE
ON THE TABLE
94 mm
3,7 in.
328 mm
13 in.
Fig. 2 - Installation guide
WARNING
The Coffee Boiler and Steam
Boiler contain water at
elevated temperature. Water
temperature over 125°F /
52°C can cause severe burns
instantly or death from scalding
(Coffee Boiler 207°F/97°C -
Steam Boiler 256°F / 124°C)
WARNING
Replace fuses with the same
size, type and rating F1 = 2A,
250V
WARNING
The machine is intended to be
permanently connected to xed
wiring, and it is mandatory that
a residual current device (RCD)
with a rated residual operating
current not exceeding 30mA is
installed.

EN
11
WARNING
At each installation, the
machine should be equipped
with a new set of tubes for
plumbing and related gaskets.
WARNING
Water pressure supply must be
between 4 and 8 bar if sufcient
pressure is not available we
suggest that an additional water
supply system is used.
WARNING
Hazardous voltage disconnect
from power supply before
servicing.
WARNING
Before making any electrical
connections make sure that the
two strain relief connectors are
rmly secured to the body of
the machine in order to prevent
inadvertent stress on the power
cables.
WARNING
The motor pump must be
situated close to the machine
in an accessible place for
maintenance but not for
accidental interference and
where there is an optimal air
circulation.
WARNING
The manufacturer declines any
responsibility for any event
leading to liability suits whenever
grounding has not been
completed according to current
local, national, and international
regulations and electrical codes,
or other electrical parts have
been connected improperly.
WARNING
- U.S.A. and CANDA only - Do not
connect to a circuit operating
at more than 150V to ground on
each leg.
WARNING
This appliance is not intended
for use by persons (including
children) with reduced physical,
sensory or mental capabilities,
or with lack of experience and
knowledge, unless they have
been given supervision or
instruction concerning the use
of the appliance by a person
responsible for their safety.
WARNING
This machine should not be
installed in kitchens.
WARNING
This machine is not suitable for
outdoor use. Jets of water should
not be used to clean the machine,
nor should it be placed where
water jets are used.

EN
12
Note:
• The drinking water mains valve and
the circuit breakers for the electrical
system need to be located in the most
convenient position for the operator to
access them easily and quickly.
• The machine should be placed on a at
counter and must be placed in settings
with the following temperatures:
Minimum room temperature: 5°C/41°F;
Maximum room temperature:
32°C/89°F.
• If the machine has been temporarily
housed in settings with a room
temperature of less 0°C/32°F, the
machine must be placed in a warmer
environment in order to gradually
defrost the hydraulic system prior to
use.
• Water pressure supply must be between
4 and 8 bar.
• This machine complies with the
standard 61000-3-11, the impedance
at the supply interface must be Zmax=
0.11 Ω.
WARNING
In order to prevent cracks
or leakage: do not store or
install the Coffee machine
in places where in boiler or
hydraulicsystem to freeze.
1) Installation guide
For best results, STRADA needs a
minimum ow of water in input of 100 l/h
and a pressure of 2.5 bar.
Installations that do not meet these
requirements will cause a shorter life of
the pump and may cause a high noise
level during coffee brewing.
If the pressure and ow are not adequate,
air bubbles may develop within the gears.
This is called cavitation. Cavitation can
impair the performance of the espresso
machine.
If the incoming water of the espresso
machine falls outside the recommended
parameters, it is necessary to carry out one
of the following installations:
WATER TREATMENT
RECOMMENDED VALUES
www.lamarzocco.com/water_calculator
ROTARY PUMP
TEE FITTINGS
WATER CHECK POINT:
FLOW RATE < 100 l/h
PRESSURE ≤9 BAR
WATER TREATMENT
RECOMMENDED VALUES
www.lamarzocco.com/water_calculator
TEE FITTINGS
WATER CHECK POINT:
FLOW RATE < 100 l/h
PRESSURE >9 BAR
ROTARY PUMP
PRESSURE REDUCER
PRESSURE ≤9 BAR
WASTE/DRAIN
POWER SUPPLY
CORD
MAIN SWITCH
AND ELECTRICAL SUPPLY CONNECTION
WATER TREATMENT
RECOMMENDED VALUES
www.lamarzocco.com/water_calculator
MAIN WATER
SUPPLY VALVE
BRAIDED HOSE
TEE FITTINGS
COFFEE
BOILER
STEAM
BOILER
WATER CHECK POINT:
PORTATA ≥ 100 l/h
PRESSIONE ≥ 3 BAR
PRESSURE REDUCER
WATER CHECK POINT:
FLOW RATE ≥ 100 l/h
PRESSURE = 3 BAR
POWER SUPPLY
CORD
WASTE/DRAIN
MAIN SWITCH
AND ELECTRICAL SUPPLY CONNECTION
WASTE/DRAIN
MAIN SWITCH
AND ELECTRICAL SUPPLY CONNECTION
POWER SUPPLY
CORD
COFFEE
BOILER
STEAM
BOILER
COFFEE
BOILER
STEAM
BOILER
BRAIDED HOSE
BRAIDED HOSE
MAIN WATER
SUPPLY VALVE
MAIN WATER
SUPPLY VALVE
Fig. 3 - Installation guide - type 1
Pressure lower than 9 bar
Flow rate lower than 100 l/h
Installation with the rotary pump
immediately after the water treatment
system, upstream of the tee.

EN
13
WATER TREATMENT
RECOMMENDED VALUES
www.lamarzocco.com/water_calculator
ROTARY PUMP
TEE FITTINGS
WATER CHECK POINT:
FLOW RATE < 100 l/h
PRESSURE ≤9 BAR
WATER TREATMENT
RECOMMENDED VALUES
www.lamarzocco.com/water_calculator
TEE FITTINGS
WATER CHECK POINT:
FLOW RATE < 100 l/h
PRESSURE >9 BAR
ROTARY PUMP
PRESSURE REDUCER
PRESSURE ≤9 BAR
WASTE/DRAIN
POWER SUPPLY
CORD
MAIN SWITCH
AND ELECTRICAL SUPPLY CONNECTION
WATER TREATMENT
RECOMMENDED VALUES
www.lamarzocco.com/water_calculator
MAIN WATER
SUPPLY VALVE
BRAIDED HOSE
TEE FITTINGS
COFFEE
BOILER
STEAM
BOILER
WATER CHECK POINT:
PORTATA ≥ 100 l/h
PRESSIONE ≥ 3 BAR
PRESSURE REDUCER
WATER CHECK POINT:
FLOW RATE ≥ 100 l/h
PRESSURE = 3 BAR
POWER SUPPLY
CORD
WASTE/DRAIN
MAIN SWITCH
AND ELECTRICAL SUPPLY CONNECTION
WASTE/DRAIN
MAIN SWITCH
AND ELECTRICAL SUPPLY CONNECTION
POWER SUPPLY
CORD
COFFEE
BOILER
STEAM
BOILER
COFFEE
BOILER
STEAM
BOILER
BRAIDED HOSE
BRAIDED HOSE
MAIN WATER
SUPPLY VALVE
MAIN WATER
SUPPLY VALVE
Fig. 4 - Installation guide - type 2
Pressure higher than 9 bar
Flow rate lower than 100 l/h
Installation of the pressure reducer
immediately after the water treatment
system, upstream of the rotary pump.
Installation of the rotary pump (set to 9
bar) immediately after the pressure reducer,
upstream of the tee.

EN
14
2) Accessories
Check the package to make sure that the
following accessories are included:
• a number of 1-dose and 2-dose
portalters orresponding to the number
of groups;
• replacement 1-dose and 2-dose lters
(one of each);
• 1 tamper;
• 1 blind lter;
• cleaning detergent, for the groups;
• 3 stainless steel braided hoses for
water connections;
• 1,5 mt of reinforced plastic tubing for
drainage;
• 1 hose clamp;
• 1 TEE Fitting.
In order to proceed with installation, it is
necessary that the following are available:
• Pipes carrying drinking water with a
3/8”G (BSP) end connection; (3/8”
Compression for USA and Canada)
• Electrical Supply according to the
specication of the espresso machine
purchased:
• Single/Three phase 220VAC - 50/60
Hz electrical connection with ground,
protected socket and approved
interlock switch
• Single phase 200VAC - 50/60 Hz
electrical connection with ground,
protected socket and approved
interlock switch
• Three-phase, 380VAC - 50 Hz
electrical connection with neutral +
ground, near the bench on which the
machine is installed and terminating
in a suitable protected vepole socket
equipped with an approved interlock
switch
• Waste water drain system.
3) Water test kit
In order to enable you to check if your water
supply is within the suggested ranges, La
Marzocco machines will be equipped with
two units of a quick water test kit (see image
below) including 6 test-strips and instruction
cards.
The parameters that you can measure are
Total Hardness, Total Iron, Free Chlorine,
Total Chlorine, pH & Total Alkalinity,
Chlorides.
Ideally, you should perform a test on the
water BEFORE the water treatment system
and again AFTER the water system in order
to verify if this is actually matching our
suggested ranges.
Once the test has been performed, learn
which treatment system is most appropriate
for your particular water supply by lling out
the online water calculator on our website: LA
MARZOCCO WATER CALCULATOR (http://
www.lamarzocco.com/water_calculator/).
4) Flowmeter safety removal
Before switch on, remove the clamp from
the owmeter located inside the machine, as
indicated by the adhesive label applied on
the main switch. Also remove the label from
the main switch.

EN
15
5) Water supply connection
In order to connect the machine up to
the water mains proceed according to the
indications given in the chapter about
Installation and in compliance with any
local/national safety standards of the
location in which the machine is being
installed.
To guarantee a correct and safe functioning
of the machine and to maintain an
adequate performance level and a high
quality of the beverages being brewed it
is important that the incoming water be
of a hardness greater than 7°f (70ppm,
4°d) and less than 10°f (100ppm, 6°d),
pH should be between 6.5 and 8.5 and
the quantity of chlorides be less than
50mg/l . Respecting these values allows
the machine to operate at maximum
efciency. If these parameters are not
present, a specic ltration device should
be installed, while always adhering to the
local national standards in place regarding
potable water.
Then connect the inlet of the water lter/
softener (if present) to the drinking water
supply using one of the supplied stainless
steel braided hoses. Before connecting
the lter to the water pump, ush the
water supply line and the ltration system
in order to eliminate any residual particles
which could otherwise get stuck in taps or
valves thus preventing them from working
properly. Connect the water supply
connection of the espresso machine to
the water pump outlet using one of the
supplied stainless steel braided hoses.
Then connect the water pump inlet to the
water lter/softener outlet (if present).
Note: The water pump is a differential
pressure volumetric pump and has been
designed to be used exclusively with cold
water. Make sure that water is always
present while the pump is operating,
otherwise air can be introduced into the
brew boiler causing an undesireable
condition and the pump can be damaged.
6) Electrical connections
a) Power supply cord
• This is the main power supply cable
that provides power to the entire espresso
machine. There are different types of cable
based upon the electrical requirements of
the espresso machine purchased:
• 200/220VAC 1 Phase 3-core cable
with 4/6/10mm2 cross section or AWG
12/10/8 for 2,3 4 group versions, secured
to espresso machine via a strain relief
connector
• 220VAC 3 Phase 4-core cable with 4
mm2 cross section for 2 , 3 and 4 group
versions, secured to espresso machine via
a strain relief connector
• 380 VAC 3 Phase 5-core cable with
2.5mm2 cross section for 2, 3 and 4 group
versions, secured to espresso machine via
a strain relief connector.
b) Water pump motor power cord
This is the power supply for the water
pump motor. The internal electronics will
switch the pump motor on when needed.
• 3-core cable with 1.5 mm2 cross section
or 3-core AWG 16 (for UL version) secured
to espresso machine via a strain relief
connector.
c) Quick connection between the water pump and the
espresso coffee machine
The electrical connection must be made
through the use of the connectors, as
shown in the following gures:
- View of the connectors;
Machine connector Pump connector

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16
- Cable connection;
- Cable tightening;
7) Waste water drain connection
The espresso machine drain is to be
connected by means of the included
reinforced plastic tubing. Connect one end
of the reinforced plastic tubing to the drain
hose connection on the left side of the
espresso machine, secure with included
hose clamp. Connect the other end to a
suitable waste water collection system.
In case such a system is not available,
drained liquids may be collected in a
suitable bucket and any necessary drain
pipe extensions shall be made using
steel-lined PVC tubing and suitable hose
clamps.
Water specications table
Min. Max.
T.D.S. ppm 90 150
Total Hardness ppm 70 100
Total Iron (Fe+2/Fe+3)ppm 0 0,02
Free Chlorine (Cl2)ppm 0 0,05
Total Chlorine (Cl2)ppm 0 0,1
pH value 6,5 8,5
Alkalinity ppm 40 80
Chloride (Cl–)ppm not more 50
N.B.: Test water quality (the warranty is void if water parameters are not within the range
specied in the section “installation”)

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1) Starting the espresso machine
a) Filling the boilers with water
Once the installaon procedures have
been completed, it is necessary to ll the
boiler tanks with water. Complete the
following procedure to properly ll the
boiler tanks:
• Coffee boiler
The water ows inside the coffee boiler
directly, as soon as the water system and
purier taps (if present) are opened.
Since the inow of water will compress
the air in the boiler, it will be necessary to
remove or “bleed” the air from the coffee
boilers. All air must be removed in order
to completely “saturate” the coffee boiler/
group assemblies.
To remove the air from the boiler, or “bleed
the groups”, it will be necessary to remove
the plastic keypad from the top of the
group.
Loosen the bleed screws one at a time
to allow air to escape until water ows
from below the screw head. Tighten the
screw to stop the water from owing. Over
tightening can cause damage to the sealing
washer and the group cover. Repeat this
procedure on all groups.
• Steam boiler
Turn the main switch to position “1” or
ON, the automatic steam boiler level gauge
4. Machine Operation and Coffee Preparation
CAUTION
Never remove the lter holder
when water is being delivered.
This operation can be extremely
dangerous since the high
pressure built-up inside the blind
lter would spray out hot and
slightly caustic water, which may
cause severe burns. The Coffee
Boiler contains water at elevated
temperature. Water temperature
over 125°F / 52°C can cause
severe burns instantly or death
from scalding.
IMPORTANT
To improve the avor of the espresso, the
temperature of the water in the coffee boiler
and therefore of the groups may eventually
be raised or lowered via the digital display
(please consult the Software Programming
Manual for detailed instructions).
WARNING
The machine must not be dipped
in, nor splashed with, water in
order to clean it. For cleaning
operations, please follow the
instructions listed below very
carefully.
WARNING
This machine is designed only for
preparing coffee and hot drinks.

EN
18
will be switched on, activating the auto-ll
solenoid valve and the motor pump. This
will ll the steam boiler to a predetermined
level and will shut off when full.
Note: Air inside the steam boiler may build
up pressure (which may be detected
through the pressure gauge).
Once the pump stops, check the display,
the message “Coffee Boiler Filled?”
should be displayed. Press to
conrm that the preceding procedures are
complete.
The installation is now complete and the
espresso machine should be heating to
operating temperatures.
2) Waiting for the Espresso Machine to Heat to
Operating Temperature
During this time, it may happen that
the pointer of the coffee boiler pressure
reaches as high as 14-15 bar. This may
happen anytime that the heating element
is in the “on” condition. In this case, it
is necessary to adjust the expansion valve
(see the picture below about the three
coffee boiler expasion valves) in such a
way that the pressure never exceeds 13
bar.
In normal operating conditions, the coffee
boiler pressure transducer, while brewing,
can read anywhere from 0-12 bar when
brewing.
When the steam boiler reaches operating
temperature, the light on the Tea dispense
button will switch on.
3) Brewing after rst installation
Once the rst installation procedures are
nished, before proceeding with brewing
coffee, hot water and steam, please follow
these steps:
• Engage the portalters by inserting
them into each group, brew water
through each group for at least two
minutes.
• Being careful to avoid burns, turn
on each steam wand for at least one
minute.
• Turn on the hot water valve for the
time necessary to allow the following
quantities of water to be brewed:
- At least 1 liter for a 1/2 group machine
- At least 2 liters for a 3 group machine
4) Installing the portalters
Install the portalter(s) by inserting them
into the group and rotate the handle from
left to right. When the portalters are
inserted properly, you can press any of
brew buttons to start the ow of water
through the portalter. You should allow
hot water to pass through the empty
portalter(s) for a few seconds each time,
in order to preheat the portalter.
Note: It is important to leave the portalters
installed in the espresso machine when
not in use. The portalter must remain
heated for the brew process to function
correctly.
Display
Expansion
Valve

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5) Brewing coffee
Now you can brew an espresso. Disengage
one of the portalters, ll the lter with
ground coffee, tamp the ground coffee
with the tamper supplied (exerting a force
of 20 kg) and re-engage the portalter to
the group. Press a button on the keypad to
begin the brewing process.
Note: Some baristas believe it is important
to press the brewing button prior to
installing the portalter to allow the water
to ush any remaining coffee oils and
particles from the group. Some also ush
just after brewing coffee for the same
reason. Please experiment to nd the best
possible procedure for you.
6) Water pump
Whenever you are brewing coffee, and you
can adjust the pump pressure by turning
the by-pass screw (below the plug located
on the side to which the pump power
supply is connected) clockwise to increase
and counter-clockwise to reduce pressure.
Adjust pressure only when at least one
group is brewing coffee.
Note: When the heating element in the
coffee boiler is energized, the water will
expand increasing the start-up pressure.
Once the maximum pressure is reached,
the expansion (safety) valve should start
working by discharging a few drops of
water, in order to prevent such pressure
from exceeding 11-12 bar.
In case the pressure exceeds 12 bar,
you must adjust the expansion valve by
unscrewing the cap slightly. If this is not
sufcient, remove the valve and clear away
any calcium deposits. This remedy is valid
also in case the valve remains open in the
drain position (i.e. the pressure cannot
increase to 8 bar approx.).
7) General notes for coffee preparation
The portalters must remain heated since
they are at the lowest position of the
group itself, and they are partially isolated
due to the rubber gasket between them.
This can be accomplished by leaving the
portalters installed in the machine when
not in use. The portalters may also be
actively heated. This procedure may be
carried out by brewing some hot water
through the portalter then turning off the
water ow, before making coffee.
It is important to remember that coffee left
over in the lters must be removed only
when you need to prepare another cup,
and only at that time should you place a
new dose of ground coffee in the lter.
The size of the coffee granules is extremely
important in preparing a good cup of
coffee, other than the type of coffee mix
used, quite obviously. The ideal grinding
can be determined by making various
coffees using the amount of ground coffee
that you would normally use for each cup
(we recommend at least 6-7g). The best
grinding is that which allows coffee to ow
out from the lter holder spouts neither
too slowly (drop by drop) nor too quickly
(quick light brown ow). A general rule
is that a double dose should dispense
approximately 25cc or 2 uid oz. of
espresso in approximately 25 seconds.
8) Cup Warmer
Press Cup Warmer Button for enabled or
disabled the cup warmer. This function
work in two modes continuous or timed
(see the Software Programming Manual
for further instructions).
Filter Basket
Porta Filter
O-ring Gasket
Double Spout
Cup Warmer Button

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1) Steaming milk or other liquids
In order to allow for any condensed water
in the wand to be released ALWAYS allow
some steam to be discharged by turning on
the valve before inserting the steam wand
into the pitcher of liquid to be heated.
Dip one of the 2 steam wands (part 8, page
7) which are connected to the steam valve,
into the liquid to be heated, turn the steam
knob gradually until steam comes out at the
end of the wand.
The steam will transfer heat to the liquid
raising its temperature up to boiling point.
Be careful not to allow liquid to overow in
order to avoid severe burns.
In order to prevent the heated liquid
from being sucked back into the steam
boiler it is recommended before using
the wand that you purge the steam valve
and steam wand by opening the valve for
a few seconds to allow steam to escape
to the atmosphere from the end of the
steam wand. Failure to do so can cause
the heated liquid to transfer from the
heated liquid container to the steam boiler
(via vacuum created from cooling parts).
This condition is undesireable and can
cause contamination in the steam boiler.
After use remember to purge the wand by
opening the steam valve for a few seconds,
and then clean the outside of the wand
itself with an appropriate cloth.
In order to prepare milk for making
cappuccino with the right amount of foam,
go through the following steps:
• After purging the steam wand place the
container half-full of milk underneath,
carefully open the steam valve and raise
the container so as to bring the wand end
to a point just below the surface of the
milk; at this point, move the container
up and down just enough to dip the
nozzle end in and out of the milk until
you get the right amount of foam, bring
the temperature of the milk almost up
to 149/158°F or 65/70°C. You can then
pour this milk into a cup containing warm
espresso and you will end up with a fresh
cup of cappuccino.
2) Preparing tea and other hot drinks.
You may dispense hot water by using the
xed nozzle (part 6, page 7). To dispense
hot water, press the tea water button.
This button commands hot water delivery.
The temperature of the water may be
adjusted by adjusting the mixing valve.
5. Dispensing Steam and Hot Water
TE'