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La Marzocco kaffebryggare Leva

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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 V1.2 - 03/2019
MAN.19.1
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
info@lamarzocco.com
T: +39 055 849 191
F: +39 055 849 1990
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. Software Programming Guide
page 3
page 7
page 12
page 24
page 30
page 31
page 34
page 35
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
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.
EN
4
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
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
EN
6
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.
LEVA 2 groups
A [mm]
B [mm]
C [mm]
WEIGHT [kg]
818
100
645
776
20) Dimensions and weights common to all
LEVA machines
3 groups
1018
129
645
776
A
C
B
EN
7
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
EN
8
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
EN
10
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

Produktspecifikationer

Varumärke: La Marzocco
Kategori: kaffebryggare
Modell: Leva

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