La Marzocco leva User manual

manual
leva
The Leva is the newest 2.0 professional lever machine in the market,
bringing the lever concept and design to the next level. The Leva is
dedicated to coffee brewing radicals, offering a groundbreaking lever
technology for those aiming to pilot a solid, mechanical, heavy-duty
yet safe, reliable and user-friendly machine.

leva
Operating Manual V2.0 - 01/2021
MAN.19.1.01
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]
Original instructions veried by the
manufacturer.
Scan QR Code to view the complete
Software Programming Guide available on
the techcenter website.
Printed on recycled paper.
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
page 3
page 8
page 13
page 24
page 30
page 31
page 34
page 35
9. Software Programming Guide page 36

EN
3
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
1. General Warnings and Safety Specications
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, and anyway
suitable for the height of the
personnel in charge.
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.
WARNING
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
Make sure that the counter
height and the machine location
allow operators to rmly grasp
the brew lever grip.

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4
of age.
2) This operating manual
is an integral and essential
part of the product and
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
been done properly as it
represents a fundamental
safety requirement. Ensure
qualied personnel check
such connection.
10) Furthermore, you must

5
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
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

EN
6
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.
20) These instructions are also
available in an alternative
format on a website
http://techcenter.lamarzocco.
com.
21) 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.
22) 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 blank 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.
23) If the machine has
been temporarily housed

7
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.
24) Water pressure supply
must be between 0,2 and
0,4 MPa.
The maximum inlet water
pressure shall be at least
1,0 MPa (Denmark, Norway,
Sweden).
25) 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.
26) This machine is designed
only for preparing coffee and
hot drinks.
27) Any modication to the
equipment is prohibited;
the manufacturer cannot
be held liable for damage
to property, animals, and/
or persons if the equipment
undergoes technical
and aesthetic changes,
changes in performance
and characteristics, and in
general is tampered with in
one or more of its constituent
components.
LEVA 2 groups
A [mm]
B [mm]
C [mm]
WEIGHT [kg]
818
100
645
776
28) Dimensions and weights common to all
LEVA machines
3 groups
1018
129
645
776
A
C
B
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 30
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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2. Denition of Available Models
This operating manual refers exclusively to the following models, of our own manufacture:
LEVA S, model 3 groups
1Pressure Gauge (coffee boiler)
2Main Switch
3Steam Wand Lever
4Delivery Lever
5Hot Water Wand
6Hot Water Mix Valve
7Hot Water Button
8Programming Display
9Pressure Gauge (steam boiler)
10 Steam Wand
11 Removable Drain Tray
12 Waste Water Hose Holder
13 Drain Tray Grate
14 USB Key Connection
15 Delivery Group
Legend
Fig. 1a - Model LEVA S - 2 or 3 groups
For additional information on electronics,
keypads, and software programming,
please see the section entitled Software
Programming your Espresso Machine.
2
4
1
3
4 4
35
6
7
1 1010
11
12 13 1415 15 1 158
9

9
This operating manual refers exclusively to the following models, of our own manufacture:
LEVA X, model 3 groups
1Display gruppo
2Main Switch
3Steam Wand Lever
4Delivery Lever
5Hot Water Wand
6Hot Water Mix Valve
7Hot Water Button
8Programming Display
9Steam Wand
10 Removable Drain Tray
11 Waste Water Hose Holder
12 Drain Tray Grate
13 USB Key Connection
14 Brewing Group
Legend
Fig. 1b - Model LEVA X - 2 or 3 groups
For additional information on electronics,
keypads, and software programming,
please see the section entitled Software
Programming your Espresso Machine.
2
4
8
3
4 4
35
6
7
1 99
10
11 12 1314 14 1 14

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15a15b
15c
15d
15e
15f 15g
15h
15i
This operating manual refers exclusively to the following models, of our own manufacture:
LEVA S and LEVA X
15a Main lever
15b Secondary lever
15c Cam
15d Spring system
15e Adjustment ring
15f Piston pin
15g Diffuser screen
15h Piston
15i Coffee Boiler
Legend
Fig. 2 - Models LEVA S and LEVA X - brewing groups
WARNING: Never release the lever if the coffee
panel isn’t exerting an appropriate back
pressure on the piston. In particular, never
release the lever in any of the following
cases:
• Portalter not properly installed on the
group.
• Portalter installed but containing no
coffee.
• No water in the machine.
Failing to comply with this provision may
result in structural damages to the machine.

11
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 (if present).
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.
It consists of AISI 300 stainless steel
tubes. 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 thus is suitable
to operate with pressures of up to 6 bar,
the calibration value of the expansion
valve. The following is a list of effective
volume and power ratings according to the
number of groups installed:
LEVA X:
2 groups 2 x 1,3 liters 2 x 800 Watt
3 groups 3 x 1,3 liters 3 x 800 Watt
LEVA S:
2 groups 1 x 3,4 liters 1 x 1400 Watt
3 groups 1 x 5,0 liters 1 x 1900 Watt
Covers are installed at either end of the
cylindrical tank and on one of them
there is housing for the water heating
elements. A further electrical resistances,
in addition, are installed at the top of the
group and the bayonet ring. The coffee
boiler temperature is kept constant by an
electronic PID temperature control unit,
with a precision of 0.2°C. The brewing
groups are installed on the boile.
It consists of AISI 300 stainless steel
tubes. 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. Pressure inside the boiler depends
on the setting of the pressure reducer - see
page 29. In any case, its value is limited

EN
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by a special expansion valve, hereinafter
referred to as “safety device”.
• Pressure is displayed through a pressure
gauge with a scale from 0 to 24 bar.
• Safety device, based on an expansion
type mechanical valve, with
ounteracting spring adjusted to 6 bar.
• Testing: Hydraulic test at 18 bar
performed on ready-to-use small boilers,
at our factory.
• 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 (if present)
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.Set the bypass adjustment
screw to a 4-bar pressure.
•Machine CE plate:
•Machine ETL plate:

13
3. Installation
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.
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. e.g. F1 = 2A, 250V
WARNING
This machine should not be installed
in kitchens.
Values without electric pump and without cup heaters.
Values with electric pump and without cup heaters.

EN
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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 0,2 and 0,4 MPa if
sufcient pressure is not available
we suggest that an additional
water supply system is used.
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
Disconnect from power supply
before the connection with the
water pump.
Values without electric pump and with cup heaters.
Values with electric pump and with cup heaters.

15
Values without electric pump and without cup heaters.
Values with electric pump and without cup heaters.
WARNING
Hazardous voltage disconnect
from power supply before
servicing.
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.

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Values without electric pump and with cup heaters.
Values with electric pump and with cup heaters.
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 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.
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.

17
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.
• This machine complies with the
standard 61000-3-11, the impedance
at the supply interface must be Zmax=
0.17 .
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.
WARNING
It is compulsory to install a 40A
surge protector for 3GR version
X and a 32A surge protector for
3GR version S and 2GR version S
and X.
WARNING
For the connection of the
machine, it must be provided a
suitable disconnection device
near the installation, so that
in case of trip, it is possible to
operate the device near the
machine.
Fig. 3 - Installation guide

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List of safety fuses inside the machine:
aPump 3.15A fuse
bSecondary transformer 1.25A fuse
cPrimary transformer 1.25A fuse
dPump 2A fuse (L1 phase)
ePump 2A fuse (N1 neutral)
fFilling solenoid valve 2A fuse
gHot water solenoid valve 2A fuse
CE legend
a b c d f g e
aPump 3.15A fuse
bSecondary transformer 1.25A fuse
cPrimary transformer 1.25A fuse
dPump 2A fuse (L1 phase)
ePump 2A fuse (L2 phase)
fHot water solenoid valve 2A fuse
gFilling solenoid valve 2A fuse
ETL legend

19
1) Installation guide
For best results, the machine needs
an input water ow rate of at least 150
l/h, a minimum pressure exceeding the
pre-infusion pressure and anyway no
lower than 2 bar, and a temperature not
exceeding 45°C (113°F).
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 incoming water of the espresso
machine falls outside the recommended
parameters, it is necessary to carry out one
of the following installations:
Fig. 4 - Installation guide - type 1
Pressure lower than 2 bar
Flow rate at least equal to 150 l/h and anyway no
lower than the installed pump rate
Installation with the rotary pump (set to 4
bar) immediately after the water treatment
system, upstream of the tee.

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Fig. 5 - Installation guide - type 2
Pressure ranging between 2 bar and 4 bar
Flow rate higher than 150 l/h
Installation without rotary pump.