La Marzocco Linea User manual

manual
linea &fb70
The Linea’s straight lines and simple charm occupy many cafes,
roasters and chains, whose names dene the industry. The Linea
is the classic La Marzocco machine that has long supported and
helped to develop the specialty coffee industry since the 1990s.
It is a heavy duty workhorse that performs reliably in the highest
volume settings. Tried and true machine, the Linea is perfect for
your new cafe, bar, or restaurant.

EN
linea &fb70
cercaons available:
Operang Manual V1.1 - 11/2014
La Marzocco S.r.l.
Via La Torre 14/H
Località La Torre
50038 Scarperia e San Piero
(Firenze) - ITALIA
www.lamarzocco.com
[e-mail]
T: [phone]
F: [phone]
page 2
page 4
page 7
page 11
page 16
page 18
page 19
page 21
page 22
1. General Warnings and Safety Specicaons
2. Denion of Available Models
3. Installaon
4. Machine Operaon and Coee Preparaon
5. PID Temperature Controller
6. Dispensing Steam and Hot Water
7. Maintenance and Periodic Cleaning Operaons
8. De-commissioning and Demolion
9. Mandatory Maintenance and Check-up Operaons
Chapters

2
EN
1) This operang manual is an integral and
essenal part of the product and must be
supplied to users. Users are asked to read
the enclosed warnings carefully, as they
provide valuable informaon concerning
safety during installaon, operaon and
maintenance.
This manual must be kept in a safe place
and be available for consultaon to new
and experienced users alike.
2) Make sure of the product’s integrity by
inspecng the packaging, making sure it
presents no signs of damage which might
have aected the enclosed machine.
3) Check the machine’s integrity aer
having carefully removed the packaging.
When in doubt, do not proceed, contact
your dealer or retailer immediately.
They will send out specialized personnel
authorized to do work on the machine.
4) Packaging (boxes, plasc bags, foam
parts and whatever else) must not be le
around within easy reach of children, due
to the potenal danger it represents, nor
be discarded in the environment.
5) Check to see that data on the rang
plate correspond to those of the mains
electrical supply to which the machine will
be hooked up.
The installaon must be done according
to current regulaons and to the
manufacturer’s instrucons, and must be
performed by qualied and authorized
personnel. This machine should not be
installed in kitchens.
Incorrect installaon may be cause for
injury/damage to people, animals or
objects, for which the manufacturer shall
not be held responsible.
Safe electrical operaon of this device will
be achieved only when the connecon
to the power outlet has been completed
correctly and in observance of current
safety regulaons, and parcularly by
grounding the unit very carefully. Make
sure grounding has been done correctly
as it represents a fundamental safety
requirement and, in case of doubt, do not
hesitate to have qualied personnel check
such connecon.
Furthermore, you must ensure that the
capacity of the available electrical system
is suitable for the maximum power
consumpon indicated on the rang plate;
make sure also that electrical cables are of
a suitable size.
We do not recommend using adapters,
mulple plugs and/or extension cords. If
you cannot avoid using them, make sure
that they are exclusively of the kind which
conforms to current safety regulaons,
being careful not to exceed the power and
current rangs indicated on such adapters
and extension cords.
6) This device must be used exclusively for
the funcons it has been designed and built
for. Any other applicaon is inappropriate
and dangerous. The manufacturer shall
not be held responsible for any damage
caused by improper and irraonal use.
This equipment must be installed to
comply with applicable federal, state or
local plumbing codes.
7) Using any electrical device requires that
certain fundamental rules be observed.
In parcular:
• do not touch the device when you have
wet or humid hands and feet;
• do not use the device without 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 waterght.
ons
WARNING
THIS MACHINE IS FOR PROFESSIONAL USE
ONLY AND SHOULD BE INSTALLED IN LOCA-
TIONS WHERE ITS USE AND MAINTENANCE
IS RESTRICED TO TRAINED PERSONNEL.
CHILDREN ARE FORBIDDEN TO OPERATE OR
PLAY WITH THE MACHINE.

3
EN
8) Before carrying out any maintenance
and/or cleaning operaons, turn the main
switch, which is located on the machine,
to the “0” posion, and disconnect the
machine from the electrical network
by unplugging the cord or by switching
o the relave circuit breaker. For any
cleaning operaon, follow exclusively the
instrucons contained in this manual.
9) When the machine is operang
in a faulty manner or breaks down,
disconnect it from the electrical network
(as described in the preceding point)
and close the water supply tap. Do not
aempt to repair it, and contact qualied
and authorized professionals. Any repairs
must be performed exclusively by the
manufacturer or by an authorized centre
using only original parts. Non compliance
with the above forfeits the warranty and
could compromise the safe operaon of
the machine.
10) You should plan to make use of an
omnipolar connector during installaon,
as required by current safety regulaons,
complete with fuses suitable to bear the
power of the machine being connected.
11) In order to avoid dangerous
overheang problems, it is recommended
that the power supply cable be fully
unfurled.
12) Do not obstruct air intake and exhaust
grilles and, in parcular, do not cover
the cup warmer tray with cloths or other
items.
13) The machine’s power supply cable
must not be replaced by users, as also
specied on the rang plate located near
the outlet of such cable, on the body.
If the cable gets damaged, shut o the
machine (as described in point 8) and
close o the water supply; to replace it,
contact exclusively qualied professionals.
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.
COMMON DIMENSIONS AND WEIGHTS FOR
THE LINEA SERIES
COMMON DIMENSIONS AND WEIGHTS
FOR THE FB/70 SERIES
-
nual is also valid for the “FB/70” series.
-
mensions of the machine.
LINEA 1 gr 2gr 3gr 4gr
A cm/inch 45.5/18 45.5/18 45.5/18 45.5/18
B cm/inch 56/22 56/22 56/22 56/22
C cm/inch 49/20 69/28 93/37 117/46
WEIGHT kg/lb 44/97 58/128 74/163 92/203
FB/70 2gr 3gr 4gr
A cm/inch 45.5/18.5 45.5/18.5 45.5/18.5
B cm/inch 64/25.5 64/25.5 64/25.5
C cm/inch 84/33 108/42.5 135/52.25
WEIGHT kg/lb 58/128 74/163 92/203

4
EN


EE Model, AV Model, PADDLE Model with 1, 2, 3 and 4 groups
 

1Main Switch
2Water level sight glass
3Pressure gauge
4Coee groups
5Coee brewing control switch
6Cup warmer switch (non-UL machines)
Legend
7Hot water switch
8Manual ll switch
9Steam nozzle/wand
10 Steam knob
11 Hot water nozzle
1Group lever
2Steam knob
3Pressure gauge steam boiler
4Pressure gauge coee boiler
5Manual ll switch
1 2
3 4
25
FB/70 2gr 3gr 4gr
A cm/inch 45.5/18.5 45.5/18.5 45.5/18.5
B cm/inch 64/25.5 64/25.5 64/25.5
C cm/inch 84/33 108/42.5 135/52.25
WEIGHT kg/lb 58/128 74/163 92/203

5
EN
Gener
The models AV, EE and PADDLE are built
in the 1, 2, 3 and 4 group versions and
are essenally composed of the following
parts:
1. Water boiler (produces steam and hot
water);
2. Coee (“saturaon”) boiler;
3. Brewing groups;
4. Exterior;
5. Motor pump;

1. Steam Boiler
The steam boiler consists of a cylindrical
tank, of varying length according to the
number of coee groups, which is made
of stainless steel. Each unit is subjected
to a hydraulic test, at a pressure of 3 bar,
and has an operang pressure of 1.5 bar.
In the following, you will nd a list of
eecve volumes and standard power
rangs according to the number of groups
installed:
1 group 3.5 litres 1300 Was
2 groups 7 litres 2000 Was
3 groups 11 litres 3000 Was
4 groups 14.5 litres 3800 Was
Higher powered heang elements are
available for steam boilers in some
markets. Covers are installed at either end
of the cylindrical tank and on one of them
there is a housing for the water heang
and vapourizing electrical elements, which
allow reaching operang pressure within
25’ approximately. Operang pressure
is maintained by a pressure switch. The
water boiler has various ngs used for
safety devices, for supplying hot water
and steam, and for the power supply.

The coee boiler is subjected to a
hydraulic test, at a pressure of 16 bar, and
has an operang pressure of 9 bar. In the
following, you will nd a list of eecve
volumes and power rangs according to
the number of groups installed:
1 group 1.8 litres 1000 Was
2 groups 3.4 litres 1400 Was
3 groups 5.0 litres 1600 or 1900 Was
4 groups 3.4 + 3.4 litres 1400 +1400 Was
(2boilers installed)
It consists of a cylindrical tank, of varying
length according to the number of coee
groups, which is made of stainless steel.
Covers are installed at either end of the
cylindrical tank and on one of them there
is a housing for the water heang and
vapourizing electrical elements, regulated
by a precision PID Controller with a dT of ±
0.5°C which keeps the water temperature
constant. This temperature can be
adjusted to reach opmal temperature
according to the type of coee blend
being used. The groups are welded to the
boiler.
3. Brewing Groups
The brew groups are made of stainless
steel, in which you engage the portalter
used to hold the ground coee; the
espresso ows from the group, through
a spout, into the cup(s) aer the brewing
buon has been pressed.

The exterior consists of painted and
stainless sheet steel panels. To provide
good aesthecs, to opmize ergonometrics
for the operator and to reduce the chance
of damage to a minimum.

The rotary vane pump, is installed on
the water supply tubing and is set up to
operate anyme the coee groups are
acvated, and through an autoll system
whenever the water boiler needs to be
replenished.
WARNING
THE COFFEE BOILER AND STEAM BOILER
CONTAIN WATER AT ELEVATED TEMPERATU-
RE. WATER TEMPERATURE OVER 125°F/52°C
CAN CAUSE SEVERE BURNS INSTANTLY OR
DEATH FROM SCALDING (COFFEE BOILER
200°F/93.3°C-STEAM BOILER 260°F /127°C)
WARNING
THIS APPLIANCE IS NOT INTENDED FOR USE
BY PERSONS (INCLUDING CHILDREN) WITH
REDUCED PHYSICAL, SENSORY OR MENTAL
CAPABILITIES, OR 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.

6
EN
Fig. 3 - AV model available with

General Description
The AV model machine is built in the 1, 2, 3, and 4 group versions and is
essentially composed of the same parts as EE model.
This model differs from EE model in that it allows the operator to choose
four different quantities of water for brewing coffee. Each group, there-
fore, is provided with a 5 button control panel, allowing a combination of:
- a quantity of water for one normal espresso coffee;
- a quantity of water for one tall coffee;
- a quantity of water for two normal coffees;
- a quantity of water for two tall coffees.
The fifth button is used to program the other ones, as we shall see later,
and as an on-off switch for continuous brewing.
1Main Switch
2Water level sight glass
3Pressure gauge
4Coee groups
5Coee dispensing control panel (AV model)
6Cup warmer switch (non-UL machines)
7Hot water switch
8Manual ll switch
9Steam nozzle/wand
10 Steam knob
11 Hot water nozzle
12 Manual brew switch
Legend
Coffee brewing control panel for the AV model

7
EN
on
Legend
380/220/200 Volt cable
220/200 Volt cable
Water tubing
Drain tubing
WATER FILTER
(not provided)
MOTOR

not provided
1Main Switch
13 Drain piping
14 Terminal
15 Motor pump
16 Filter outlet
17 Filter inlet
18 Tap
19 Drain wells
19A Expansion valve
20 Group cover
21 Bleed screw
22 PID Temperature Controller
23 Switch (not provided)
24 Plug (not provided)
25 Connectors
Fig. 4
THE COFFEE MACHINE MUST BE PLACED IN A
HORIZONTAL POSITION ON A COUNTER HIGHER
THAN 80CM FROM THE GROUND.
WARNING
WARNING
THE MACHINE IS INTENDED TO BE PERMANENTLY
CONNECTED TO FIxED WIRING, AND IT IS ADVISABLE
THAT A RESIDUAL CURRENT DEVICE (RCD) WITH
A RATED RESIDUAL OPERATING CURRENT NOT
ExCEEDING 30MA IS INSTALLED.
not provided

8
EN


1) Accessories
Check the package to make sure that the
following accessories are included:
• a number of 1-dose and 2-dose
portalters according to the number
of groups;
• replacement 1-dose and 2-dose lter
baskets
• 1 tamper
• 1 blind lter
• cleaning detergent, for the groups
• 3 stainless steel braided hoses for
water connecons
• 1,5 mt of reinforced plasc tubing for
drainage
• 1 hose clamp
In order to proceed with installaon, it is
necessary that the following are available:
• Pipes carrying drinking water with a
3/8”G (BSP) end connecon; (3/8”
Compression for USA and Canada)
• Electrical Supply according to the
specicaon of the espresso machine
purchased (not all specicaons are
available in all markets):
→ Single/Three phase 220VAC - 50/60
Hz electrical connecon with ground,
protected receptacle and approved circuit
breaker
→ Single phase 200VAC - 50/60 Hz electrical
connecon with ground, protected
receptacle and approved circuit breaker
→ Three-phase, 380VAC - 50/60 Hz electrical
connecon with neutral + ground, near the
bench on which the machine is installed
and terminang in a suitable protected
vepole receptacle equipped with an
approved circuit breaker
• Waste water drain system

• The drinking water mains valve and
the circuit breakers for the electrical
system need to be located in the most
convenient posion for the operator to
access them easily and quickly.
• The machine should be placed on a at
counter and must be placed in sengs
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 sengs with a room
temperature of less than 0°C/32°F,
please contact a service technician
prior to use.
• Water pressure supply must be
between 2 and 6 bar.

In order to connect the machine up to
the water mains proceed according to
the indicaons given in the chapter about
Installaon and in compliance with any
local/naonal safety standards of the
locaon in which the machine is being
installed.
To guarantee a correct and safe
funconing 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 9°f
(90ppm, 5°d) and less than 15°f (150ppm,
8.4°d), pH should be between 6.5 and 8.5
and the quanty of chlorides be less than
50mg/l . Respecng these values allows
the machine to operate at maximum
eciency. If these parameters are not
present, a specic ltraon device should
be installed, while always adhering to the
local naonal standards in place regarding
potable water.
Then connect the inlet of the water lter/
soener (if present) to the drinking water
supply using one of the supplied stainless
steel braided hoses. Before connecng
the lter to the water pump, ush the
WARNING
AT EACH INSTALLATION, THE MACHINE
SHOULD BE EqUIPPED WITH A NEW SET OF
TUBES FOR PLUMBING AND RELATED
GASKETS.
WARNING
HAZARDOUS VOLTAGE DISCONNECT FROM
POWER SUPPLY BEFORE SERVICING

9
EN
water supply line and the ltraon system
in order to eliminate any residual parcles
which could otherwise get stuck in taps or
valves thus prevenng them from working
properly. Connect the water supply
connecon 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/soener outlet (if present).
 Make sure that water supply is
always on while the pump is operang,
otherwise air can be introduced into
the brew boiler causing an undesireable
condion and damage to the pump.


• This is the main power supply cable that
provides power to the enre espresso
machine. There are dierent types of cable
based upon the electrical requirements of
the espresso machine purchased:
→ 200/220VAC 1 Phase 3-core cable with
2.5/4/6/10mm2 cross secon or AWG 12/10/8
(for UL version), secured to espresso machine
via a strain relief connector
→ 220VAC 3 Phase 4-core cable with 4 mm2
cross secon for versions with 1, 2 , 3 and 4
groups secured to espresso machine via a
strain relief connector
→ 380 VAC 3 Phase 5-core cable with 2.5/6
mm2 cross secon for versions with 1, 2, 3 and
4 groups 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 secon
or 3-core AWG 16 (for UL version) secured
to espresso machine via a strain relief
connector.

The espresso machine drain is to be
connected by means of the included
reinforced plasc tubing. Connect one
end of the reinforced plasc tubing to
the drain hose connecon on the le side
of the espresso machine, secure with
included hose clamp.
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
- U.S.A. AND CANADA ONLY -
DO NOT CONNECT TO A CIRCUIT
OPERATING AT MORE THAN 150 V
TO GROUND
WARNING
IN ORDER TO PREVENT CRACKS OR
LEAKAGE: DO NOT STORE OR INSTALL
THE COFFEE MACHINE IN PLACES WHERE
TEMPERATURE MAY CAUSE
WATER IN BOILER OR
HYDRAULIC SYSTEM TO FREEZE.
BEFORE MAKING ANY ELECTRICAL
CONNECTIONS MAKE SURE THAT THE TWO
STRAIN RELIEF CONNECTORS ARE FIRMLY
SECURED TO THE BODY OF THE MACHINE IN
ORDER TO PREVENT INADVERTENT STRESS
ON THE POWER CABLES.
CAUTION
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.

10
EN

Once installation has been completed, you
can proceed to hook up the filter holders
(Fig. 5) called portafilters, together with
their filters, to the bottom of the groups
by rotating them from left to right. Before
operating the various switches and thus
powering up the heater elements, fill up
the boiler tanks with water, as follows:
1. COFFEE BOILER
The water flows inside the coffee boiler
directly, as soon as the water system
and purifier taps are opened. Since the
inflowing water will compress the air in
the boiler it will be necessary, in order to
completely “saturate” the boiler-groups
assembly, to remove the group cover
plate (part 20 Fig. 4) and unscrew the
small bolt (part 21) called bleed screws
a little way so as to allow air to escape
until a few drops of water leak out (see
diagram below). This should be repeated
for each group, then tighten the bleed
screws again and reinstall the cover.
Connect the other end to a suitable waste
water collecon system.
In case such a system is not available, and if
acceptable according to local regulaons,
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.
 Saturation of group via “bleed screw”

11
EN
2) STEAM BOILER
By turning the main switch (part 1) to
position “1”, the automac ll system
will be switched on which, by activating
the solenoid valve and the motor pump
(part 15), will fill the steam boiler up to a
predetermined level selected by adjusting
the probe inside the boiler itself.
N.B.
It may happen that the air inside the boiler
builds up pressure (which may be detected
through the pressure gauge - part 3, Fig 1,
2 or 3) To resolve this, turn the machine
off and bleed the air from the groups (see
previous page for instructions). Once you
have completed these operations, turn
the main switch (part 1) to position “2”
and wait for the boilers to reach operating
temperature and pressure (which takes
from 20 to 35 minutes, depending on
the size of machine), which will be
subsequently maintained at a constant
value automatically.
During this time, the pointer of the lower
scale on the pressure gauge (part 3, fig.
1 or 3; or part 4 fig. 2) may reach as
high as 11-12 bar; this may occur any
time that, while activating the groups,
the motor pump forces cold water into
the coffee boiler at a pressure of 8-9
bar and, simultaneously, the temperature
controller regulating the temperature of
the boiler itself switches on the heating
elements in order to bring the water
contained in such boiler up to operating
temperature. However, in this case it is
necessary to adjust the expansion valve
(Fig. 4, part 19A) in such a way that the
pressure may never exceed 12 bar.
Brewing after first installation
Once the first installation procedures are
finished, before proceeding with brewing
coffee, hot water and steam, please follow
these steps:
- Engage the portafilters 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
At least 3 liters for a 4 group machine
For EE model - fig. 1
Take a portafilter and place some ground
coffee in the filter itself: the suggested
amounts (in grams) to use are laser-
marked on the actual filters. Press
down on the ground coffee with the
supplied tamper and engage the filter
holder in the group and then press the
switch (part 5) thus allowing coffee to
be brewed; when you have obtained
your desired amount of coffee, press
the switch again (part 5), at which point
the machine discharges the pressure built
up in the filter holder. The holder may
then be removed to proceed with making
another coffee, as required.

Take a portafilter and place some ground
coffee in the filter itself: the suggested
amounts (in grams) to use are laser-
marked on the actual filters. Press down
on the ground coffee with the supplied
tamper and engage the portafilter in the
group. Move the paddle handle of the

CAUTION
DO NOT REMOVE THE FILTER HOLDER WHILE
RELATIVE GROUP IS BREWING HOT LIqUIDS.
THE COFFEE BOILER CONTAINS WATER AT
ELEVATED TEMPERATURE. WATER
TEMPERATURE OVER 125°F / 52°C CAN CAUSE
SEVERE BURNS INSTANTLY OR DEATH FROM
SCALDING.

12
EN
group from right to left (part 1) thus
allowing coffee to be brewed; when you
have obtained your desired amount of
coffee, return the paddle handle back to
original position on the right-hand side,
at which point the machine discharges
the pressure built up in the portafilter. It
may then be removed to proceed with
making another coffee, as required. In
order to pre-infuse the coffee in the filter,
once the portafilter has been engaged in
the group, move the paddle handle only
half way from the right to left for a few
seconds, then move all the way to the left
in order to brew your espresso/s, until the
desired dose is released in the cup, then
turn off by returning the paddle handle to
its original position on the right-hand side.
For AV model - fig. 3
It is essential to program the quantity
of water delivered by performing the
following operations with the utmost care.
In case of doubt or difficulties, please
contact our technical service.
Introduction
The coffee metering system is based
on the amount of water which will be
delivered onto the ground coffee, already
set in the filter and the portafilter, which
is measured through a water volume
control system, which is located above
the group assembly flange, where the
group connects to the boiler. Inside each
counter there is a paddle wheel (which
we shall call wheel for simplicity) which
rotates as water flows by.
The sequence of the water cycle is as
follows:
group - counter
counter - solenoid valve
solenoid valve - diffuser
diffuser - coffee brewing spout
The wheel is designed in such a way as to
rotate freely when water is flowing by; it
sends 2 signals, every complete rotation,
to the electronic module which processes
them and activates the solenoid valve
relay of the corresponding group, as well
as the motor pump relay.
Such electronic module also processes
the signal sent by the boiler’s level gauge
and consequently activates the relative
solenoid valve relay of the same motor
pump.

Programming for the 3D/5 version
Press and hold the button with the spiral
symbol for more than 4 seconds.
You can then follow the same operations
as for the standard version, which are
described in the following.
The LEDs stay on for 5 seconds after
which, if no button has been pressed,
they turn off; you must then repeat the
above-mentioned procedure to turn them
on again and to prepare the electronic
module for programming;
1. Press the first button within 5 seconds
and press it again once you have obtained
the desired amount of coffee; at this
point, the LEDs will turn off and this
button will remain programmed as for the
dose brewed previously;
2. Repeat steps for the other three buttons;
any time a button has been programmed,
by pressing the button with the spiral
again, the LED of the programmed
button(s) will remain switched off.
3. Once you have programmed the first 4
buttons of the first control panel from the
left, the dosage programs set according to
the above will be stored in memory and
the 5th button (the one with the spiral)
will return to its function as a continuous
brewing on/off button.


13
EN
N.B.
The programs for the first group from the
left will become the default programs for
the remaining groups, although you may
wish to program these groups differently
in which case you need to follow steps
1 to 5 for the remaining control panels.
The leftmost control panel must be
programmed first; indeed, if you were to
program this last, all its settings would
be automatically transferred to the other
groups.
It is recommended that each group be
programmed separately, from left to right.
Each button also works as a switch and,
therefore, you may stop coffee brewing
at any time, whenever you have obtained
the desired quantity, by pressing the same
button.
Fault warnings
If the wheel does not send any signals
to the electronic module for more than
3-4 seconds, the LED of the button which
has been pressed will start flashing. This
means that:
A) water is not flowing over the wheel
and is therefore not reaching the coffee
groups, which may be due to:
1. the ground coffee being too fine
meaning that the coffee gets brewed
too slowly (drop by drop) and therefore
the wheel cannot measure the water
flow within the factory-set time of the
electronic module.
2. insufficient water flow through the
groups (i.e. onto the coffee powder)
probably due to a combination of one or
more of the following occurrences:
• partial blockage in one of the pipes;
• a malfunctioning motor pump;
• a malfunctioning solenoid valve;
• partial blockage of the diffuser screen.
B) there are calcium deposits inside the
water flow counter which prevent the
wheel from turning properly.
C) the wheel itself and the sensor (top
part) of the counter, may be faulty.
Coffee brewing
Take a portafilter and place some ground
coffee in the filter itself: 1 dose for the
small filter, 2 doses for the larger filter.
Press down on the ground coffee with
the supplied tamper and engage the filter
holder again into the bottom of the group
and then press one of the buttons with
the symbols for 1 or 2 cups, short or long
You may press the same button again in
order to terminate coffee brewing before
its programmed stop. If you need an
unusual amount of coffee, you may use
the button with the spiral symbol and
press it again once you have obtained the
desired quantity.
Once the coffee has been completely
brewed, the pressure in the filter holder
is discharged automatically, the portafilter
may then be removed to repeat the
operation as needed.

14
EN
   
COFFEE
When the machine has reached its
operating pressure, 1.2 - 1.5 bar which
may be checked by looking at the upper
scale in the pressure gauge (part 3 fig.
1, 2 or 3), and its operating temperature
at the same time, with the body/group
already at infusion temperature, the filter
holder and filter must be heated more
since they are at the lowest position of
the group itself, and they are partially
isolated from the same due to the rubber
gasket between them. This operation may
be carried out by activating the paddle
(fig. 2, part 1) or the switches (part 5, fig.
1 or 3) and keeping them in the brewing
position for approx. 45 seconds, at which
point they must be turned off and you
must wait for 2-3 more minutes.
During this time, the pointer of the lower
scale of the pressure gauge (part 3, fig.
1 or 3; or fig. 2, part 4) may reach as
high as 11-12 bar; this may occur any
time that, while activating the groups,
the motor pump forces cold water into
the coffee boiler at a pressure of 8-9 bar
and, simultaneously, the PID controller
regulating the temperature of the boiler
itself switches on the heating elements
in order to bring the water contained in
such boiler up to operating temperature.
However, in this case it is necessary to
adjust the expansion valve (marked 19A in
fig. 4) in such a way that the pressure may
never exceed 12 bar.
The size of the coffee granules is extremely
important in preparing a good cup of
coffee, as is the type of coffee mix used.
The ideal grind 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
7 g). The best grind is that which allows
coffee to flow out from the filter holder
spouts neither too slowly nor too quickly.

The temperature of the water in the
coffee boiler, and therefore of the groups,
may eventually be raised or decreased by
means of the PID temperature controller
(part 22, fig.4) - see next chapter for
further details. The final adjustment
should be made during tuning-up, once
the machine has been permanently
installed. The pressure of the water on
the coffee during the brewing is very
important. For this reason it is important
to set the by-pass on the pump at 9 bar.
This value changes if there are variations
on the incoming pressure from your local
water system. If there are variations,
make the necessary technical adjustments
on the system in order to eliminate them.

15
EN


*** PV: Process Value: measured temp
SV: Seng Value: set temp
Coee boiler element Pilot light 1
N.B.
In 1,2,3 group machines the PID Controller is installed on le
side. In 4 group machines on le and right side.

3 SEL Keys 4 Keys
5 Auto-tuning/self-tuning lamp
2 Display6 SV lamp
see also fig. 4 - part. 20

Lights up while controller output 1 stays ON.
i.e. heang element is ON
2) Display
Displays the PV (process value) or SV (seng value). When set-
ng a parameter, its name or its value appears.
3) SEL key
Used to switch the PV display to/from the SV display
and select a parameter block and a parameter, and register a
set value.
4) keys
Used to change the SV, call parameters, and change parameter
values.
5) Auto-tuning/self-tuning lamp
Flickers under an auto-tuning or self-tuning operaon.
see detailed info in Manual * (see page 16)

Displays the PV (process value) in normal condions
(while the lamp is on). Press the SEL key to light
up the SV lamp and display the SV. Note that the lamp stays o
while parameters and data are displayed.
It ickers while the display shows the PV (process value) in
standby state.

16
EN

One press to increase the value by 1.
Press and hold this key to increase to
desired value then wait a few seconds to
automacally exit programming funcon.

One press to decrease the value by 1.
Press and hold this key to decrease to
desired value then wait a few seconds to
automacally exit programming funcon.
* For more detailed informaon on the potenal of this device,
consult the:
For further assistance you may contact the Aer Sales Department:
[e-mail]
eor[email protected]
Press the SEL key to display the value

17
EN
STEAMING MILK
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. Then insert one of the 2 nozzles
(part 9, fig. 1 or 3) which are connected
to the steam tap, into the liquid to be
heated, turn the knob (part 10, fig. 1 or 3)
gradually until steam comes out at the end of
the nozzle (1).
The steam will transfer heat to the liquid
raising its temperature up to boiling point.
Be careful not to allow liquid to overflow
in order to avoid severe burns.
To prepare milk for making cappuccino
with the right amount of foam, go through
the following steps:
▪ Place the container half-full of milk
under the steam nozzle
▪ Open the tap immediately and bring the
temperature of the milk to your desired
temperature
▪ You can then pour this milk into a cup
containing warm espresso and you will
end up with a fresh cappuccino
In order to prevent part of the liquid to
be heated from being sucked back into
the boiler (due to a possible temporary
decompression inside the boiler tank)
which would cause both the steam and
the liquid delivered by nozzle part 9 and
nozzle part 11 respectively to have a
bad odour, we recommend that you de-
vapourize the machine once or twice
for just a few seconds, which consists of
quickly opening and closing the tap (part
10) with the nozzle (part 9) not immersed
in the liquid before starting to steam it.
Be careful not to burn yourself with the
steam.
Furthermore, once you have immersed
the steam wand into the liquid to be
steamed in the pitcher, open the steam
tap immediately. Once the liquid has been
heated, follow this procedure:
▪ lower the steam pressure
▪ remove the pitcher
▪ close the steam tap

You can obtain hot water by using the
fixed nozzle (fig. 1 or 3), located between
the group furthest to the right and the
steam nozzle (part 9, fig. 1 or 3), and by
pressing the button (part 7, fig. 1 or 3)
which commands hot water delivery.
6. Dispensing Steam and Hot Water

18
EN

Cleaning groups and drain wells
Insert the blind filter into portafilter
and put the correct amount of espresso
cleaning product (following the product’s
instructions) into the filter, engage the
portafilter into the group you want to
clean.
• Press the brewing button for said group,
as if you were making a regular cup of
coffee. Stop the water after about 15-20
seconds.
• Start and stop the group several times
until you notice clear water being released
instead of soapy water when you remove
the portafilter.
Do not remove the portafilter when
group is actually brewing water.
• Rinse the group using a normal filter
in the portafilter, by running hot water
through it several times.
Cleaning filters and filter holders
With daily cleaning of the stainless steel
filters and portafilters it is sufficient to
clean them with water and a cloth or
appropriate brush. Otherwise, using an
espresso cleaning product, following the
product’s instructions put the correct
dose in about 1/2 a litre of water inside a
heat-resistant container and heat.
• If using stainless steel portafilters
with snap-on spouts remove the spout.
Immerge filters and metallic parts of por-
tafilters (not handles) in the hot solution
and leave them submerged for about 30
minutes.
• Rinse thoroughly with clean water and
run hot water through the group sev-
eral times with the filter and portafilter
engaged.
• Make one cup of coffee in order to
remove any unpleasant flavour.
Cleaning the drain collector
Remove the drain tray grill every night,
pull out the water drain collector and
clean it thoroughly. Also inspect and clean
the drain well (part 19) at least twice a
week, and remove any leftover grounds
with a tablespoon.
Cleaning the body
Wipe the stainless steel surfaces with
a soft cloth in the direction of the glaz-
ing marks, if any. Do not use any alcohol
or solvents whatsoever on painted or
imprinted parts in order not to damage
them.
Cleaning the hot water and steam nozzles
Steam nozzles must be cleaned immedi-
ately after use with a damp cloth and by
producing a short burst of steam (being
careful to avoid burns) so as to pre-
vent the formation of deposits inside the
nozzles themselves, which may alter the
flavour of other drinks to be heated.
Cleaning the diffuser screens (infusion
filter)
Due to filter holder discharge operations
(subsequent to coffee brewing), a certain
amount of coffee grounds may slowly
build-up on and obstruct, even partially,
the infusion filter. To clean, you must first
CAUTION
NEVER REMOVE THE FILTER HOLDER WHEN
WATER IS BEING DELIVERED. THIS OPERATION
CAN BE ExTREMELY DANGEROUS SINCE THE
HIGH PRESSURE BUILT-UP INSIDE THE BLIND
FILTER 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.
THE MACHINE MUST BE INSTALLED SO THAT
qUALIFIED TECHNICAL PERSONNEL CAN
EASILY ACCESS IT FOR MAINTENANCE.
WARNING
CAUTION
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.

19
EN
remove it by unscrewing the retainer
screw, then soak in espresso detergent
powder.

The motor pump is of the positive-
displacement type and can develop a
pressure of 14 bar. The operating pres-
sure is 8-9 bar and is factory preset during
testing; however, such pressure may vary
from place to place since the pump pres-
sure is affected by the incoming water
mains pressure. You must always check
the pressure itself by looking at the lower
scale on the pressure gauge (part 3, fig.
1 or 3; part 4, fig. 2) whenever you are
brewing coffee, and you can increase
such pressure, as required, by turning the
by-pass screw (below the plug located on
the side to which the pump power sup-
ply is connected) clockwise, or reduce it
by turning the screw counter-clockwise.
Adjust pressure only when at least one
group is brewing coffee.

When you activate the motor pump by
pressing the specific button (part 8, fig.
1 or 3) you also give pressure directly
to the coffee boiler.
If you activate the
motor pump when
the machine is cold,
a start-up pressure of
8-9 bar will develop;
thus, once the heat-
ing elements start working and the water
temperature increases, the liquid will
expand increasing the start-up pressure
by about 3 bar, for a total pressure of 11
bar. Once operating pressure is reached,
the expansion (safety) valve (part 19A)
should start working by discharging a few
drops of water, in order to prevent such
pressure from exceeding 12 bar.
If the pressure exceeds 12 bar, you must
adjust the valve by unscrewing the cap
slightly. If this is not sufficient, remove
the valve and clear away any calcium
deposits. This remedy is valid also if the
valve remains open in the drain position
(i.e. the pressure cannot increase to 8 bar
approx.).
If the machine has not been used for
more than 8 hours or, in any case, after
long periods of being idle, in order to use
the machine to its full potential it is nec-
essary to perform some cleaning cycles
before brewing beverages as follows:
- Groups: with the portafilters engaged
in the groups brew water through each 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
At least 3 liters for a 4 group machine
If the machine is not going to be used
for long periods of time, it is advisable to
follow these safety indications:
- Disconnect the machine from the
water mains or interrupt the water con-
nection via a mains tap.
- Disconnect the machine from the elec-
trical mains.
WARNING
IF THE ABOVE-MENTIONED INSTRUCTIONS
ARE NOT ADHERED TO THE MANUFACTURER
CANNOT BE HELD RESPONSIBLE FOR
DAMAGE TO PERSONS OR THINGS.
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SCREW 
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