That was the question La Marzocco set out

manual
gs3
Imagine if the sky’s the limit, what would the ultimate light duty/home
machine be? That was the question La Marzocco set out to answer.
Years of research and development yielded the creation of a yet another
standard setting espresso machine: the GS/3. With La Marzocco performance
and technology, the GS/3 is designed for light commercial applications,
including restaurants, offices, catering, or the ultimate home coffee bar. All
the features and performance of a larger La Marzocco in a compact footprint.
gs3
Operating Manual V1.3 - 09/2016
MAN.2.1.01
Chapters
1. General Information
page 3
La Marzocco S.r.l.
2. Accessories
page 5
3. Machina Description
page 6
Via La Torre 14/H
Località La Torre
50038 Scarperia e San Piero
(Firenze) - ITALIA
4. Installation
page 7
5. Operation
page 12
6. Key Features
page 14
7. Preventative Maintenance and Cleaning
page 16
8. Maintenance and Periodic Cleaning Operations
page 18
9. Installation Guide
page 19
10. Software Programming Guide
page 29
EN
certifications available:
www.lamarzocco.com
info@lamarzocco.com
T: +39 055 849 191
F: +39 055 849 1990
1. General Information
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.
About this Manual
1) This operating guide 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.
Remove Machine from Packaging
1) Ensure product’s integrity by inspecting
the packaging, making sure it presents
no signs of damage which might have
affected the enclosed machine.
2) Check the machine’s integrity after
having carefully removed the packaging.
Packaging (boxes, plastic bags, foam parts
and whatever else) must not be left within
easy reach of children, due to the potential
danger it represents, nor be discarded in
the environment.
Safety Instructions
1) Check to see that data on the rating
plate corresponds to those of the main
electrical supply to which the machine will
be attached.
This equipment must be installed to
comply with applicable federal, state or
local plumbing codes.
2) The installation must be performed
according to local electrical and plumbing
codes and regulations. The installation
also must comply to the manufacturer’s
instructions, and must be performed by
qualified and authorized personnel.
3) Incorrect installation may cause injury/
damages to people, animals or objects, for
which the manufacturer shall not be held
responsible.
4) 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
qualified personnel check such connection.
5) Furthermore, you must ensure that
the capacity of the available electrical
system is suitable for the maximum power
consumption indicated on the espresso
machine.
6) 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.
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.
7) 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.
EN
WARNING
3
8) Using any electrical device requires that
certain fundamental rules be observed. In
particular:
-do not touch the device with wet or
moist hands and feet
- do not use the device while not wearing
shoes
-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
- do not allow children or untrained people
to use this device
9) Before performing any maintenance and/
or cleaning operations (other than backflushing the group), turn the main switch
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.
WARNING
EN
HAZARDOUS VOLTAGE DISCONNECT FROM POWER
SUPPLY BEFORE SERVICING.
4
10) If the machine is operating in a faulty
manner or stops working, disconnect it
from the electrical network (as described
in the preceding point). Do not attempt
to repair it. Contact a qualified and
authorized professional to perform any
repair. Any repair 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.
WARNING
THE MACHINE MUST BE INSTALLED SO THAT
QUALIFIED TECHNICAL PERSONNEL CAN EASILY
ACCESS IT FOR MAINTENANCE.
11) In order to avoid dangerous overheating
problems, it is recommended that the
power supply cable be unfurled completely.
12) Do not obstruct air intake and exhaust
grilles and, in particular, do not cover the
cup warmer tray with cloths or other items.
Minimum room temperature: 5°C
Maximum room temperature: 32°C
13) 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 electrical network by
unpluging the power cord or switching off
the relative circuit breaker and close off the
water supply; to replace the power supply
cord, contact qualified professionals
exclusively.
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 USE OF THE APPLIANCE
BY A PERSON RESPONSIBLE FOR THEIR SAFETY.
WARNING
IN ORDER TO PREVENT CRACKS OR LEAKAGE: DO
NOT STORE OR INSTALL THE COFFEE MACHINE IN
PLACES WHERE TEMPERATURE MAY CAUSE BOILER OR
HYDRAULIC SYSTEM WATER FREEZING.
2. Accessories
Check the package to make sure that the following accessories are included in the packaging:
PART NO.
DESCRIPTION
1
L111/2NAC
PORTAFILTER
ASSEMBLY, DOUBLE
SPOUT, S/STEEL
1
L111/1AC
PORTAFILTER
ASSEMBLY, SINGLE
SPOUT, S/STEEL
1
L115/C
PORTAFILTER BASKET,
BLIND
1
F.3.029
Precision filter
basket 7gr (single)
1
F.3.028
Precision filter
basket 14gr
(double)
1
F.3.027
Precision filter
basket 17gr
1
F.3.026
Precision filter
basket 21gr
1
F.3.030/
f.3.031
Tamper (according
to market)
1
UT003
HEX KEY, 5mm
2
L120/2A
WASHER, FLAT,
SEALING TYPE, M6
(12X6.25X0.75)
1
V067
ESPRESSO MACHINE
CLEANER
1
913 (CE)
914 (ETL)
WATER SUPPLY AND
DRAIN CONNECTION
KIT
F.3.029 F.3.028.01
L115/C
F.3.027.01 F.3.026.01
UT003
V067
L120/2A
L111/1AC
L111/2NAC
913 (CE) / 914 (ETL-USA)
F.3.031.01(U.S.A.)
L325 (CE)
L326 (ETL-USA)
F.3.030.01
H.1.010.01
F.8.002
Figure 1 - Accessories
F.8.003
L312
L308
EN
QTY.
5
3. Machine Description
group head
(AV model)
cup tray
group cover
paddle group and handle
(MP model)
pressure gauge
(steam boiler)
main power switch
pressure gauge
(coffee boiler)
steam wand
steam activation
lever
display
EN
hot water dispensing
spout
6
Figure 2 - Machine Description
keypad
drain box
temperature adjustment
knob for hot water
4. Installation
The machine is intended to be permanently
connected to mains power supply.
It is mandatory that a residual current device
(RCD) with a rated residual operating current not
exceeding 30 mA is installed.
Espresso Machine Installation, GS/3
1) Fill Water reservoir with potable water.
Remove the drain tray and slide the
water reservoir until the water reservoir
fill cover is accessible. Remove the cover
and fill water reservoir with potable water.
Replace the fill cover and slide the water
reservoir to the operating position and
replace the drain tray. (See GS/3 Software
and Installation Guide for additional
instructions). In order to connect the
machine up to the water mains proceed
according to the indications given in the
Installation Guide 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
efficiency. If these parameters are not
present, a specific filtration device should
be installed, while always adhering to the
local national standards in place regarding
potable water.
In order to enable
you to check
if your water
supply is within
the
suggested
ranges,
La
M a r z o c c o
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 filling out the online water calculator
on our website: LA MARZOCCO WATER
CALCULATOR
(http://www.lamarzocco.
com/water_calculator/).
WARNING
THE COFfEE MACHINE MUST BE PLACED IN A
HORIZONTAL POSITION ON A COUNTER HIGHER THAN 80
CM FROM THE GROUND
2) Connect Espresso Machine to Power Supply.
Connect the espresso machine to a power
supply that is rated in accordance with the
serial plate on the espresso machine.
3) Filling the Boilers with Water.
Once the espresso machine has been
unpackaged, placed on a hard surface,
and with the water reservoir full, it will
be necessary to fill the boilers with water.
Complete the following steps to properly
fill the boiler tanks:
Steam Boiler: Turn the main switch to
position “1” or ON, the automatic steam
boiler level system will be switched on,
activating the auto-fill solenoid valve and
the water pump. This will fill the steam
EN
WARNING
7
boiler to a predetermined level and will
shut off when full.
NOTE: It may be necessary to re-fill the water
reservoir during this process. Check to see if the
“Water Tank Empty” error message is present on
the display before continuing.
Coffee Boiler: The water flows inside the
coffee boiler directly when the water pump
is activated. When the GS/3 is turned on
the electronics will activate the water
pump to fill both boilers. Since the inflow
of water will compress the air in the boiler it
will be necessary to remove or “bleed” the
air from the coffee boiler. All air must be
removed in order to completely “saturate”
the coffee boiler/group assembly. To
remove the air from the boiler (“bleed the
groups”) remove the group cover from the
top of the group head. Then loosen the
bleed screw (see picture) to allow air to
escape until water
5 mm Hex Key
Bleed Screw
Figure 3b - “Bleed the Group MP”
flows from below the screw head. It may
be necessary to activate the brew process
by pressing button #5 (the
continuous button) to force the air out of
the group. Tighten the screw to stop the
water from flowing. Over-tightening can
cause damage to the sealing washer and
the group cap. If this sealing washer is
damaged replace washer with one included
in accessory kit. Once all air is removed
from the coffee boiler, reinstall the group
cover. For more detailed instruction please
refer the GS/3 Installation Guide.
EN
NOTE: It may be necessary to re-fill the water
reservoir during this process. Check to see if the
“Water Tank Empty” error message is present on
the display before continuing.
8
Figure 3a - “Bleed the Group AV”
4) Verify filling of Boilers.
The installation is now complete and the
espresso machine should be heating to the
operating temperatures.
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 portafilter by inserting it into
the group head and rotate the handle from
left to right. Once the portafilter is inserted
properly, you can press one of the brewing
buttons on the keypad to start the flow of
water through the portafilter (AV models)
or rotate the handle from left to right (MP
models). Brew water through the group for
at least two minutes.
• Being careful to avoid burns, turn
on
steam
wand
for
at
least
one minute.
• Turn on the hot water valve for the time
necessary to allow at least 1 liter of water
to be brewed.
5) Waiting for the Espresso Machine to Heat to
Operating Temperature. During this time, the
pointer of the coffee boiler pressure gauge
may reach as high as 12 bar. This may
happen anytime that the heating element
is in the “on” condition. If the pressure
exceeds 12 bar then it will
be necessary to adjust the expansion valve
in such a manner that the pressure never
exceed 12 bar.
In normal operating conditions, the coffee
boiler pressure gauge can read anywhere
from 0-12 bar. When brewing,
the pressure should be set to
approximately 9 bar. When the espresso
machine is ready to operate all lights on
the keypads will light up.
NOTE: As the steam boiler reaches operating
temperature you may hear air and steam escaping
from the boiler. This is a normal sound. As the water
boils, air in the boiler is replaced by steam and
exits through the vacuum breaker. As the boiler
get closer to operating temperature the vacuum
breaker closes and the steam is no longer able to
escape. This process allows the air in the steam
boiler to escape and to be replaced by water vapor.
Water specifications table
Figure 4 - Key Pad buttons
Max.
T.D.S.
ppm
90
150
Total Hardness
ppm
70
100
Total Iron (Fe /Fe )
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
ppm
not more
50
+2
Chloride (Cl )
–
+3
N.B.: Test water quality (the warranty is void if water parameters are not within the range
specified in the section “installation”)
EN
Figure 5 - Key Pad buttons with lights on
Min.
9
6) Adjusting the Expansion Valve.
The expansion valve is a component
that limits the maximum pressure in the
coffee boiler. Heating the coffee boiler
causes the water within to expand. Since
the coffee boiler is completely saturated,
the expanding water causes an increase
in pressure within the boiler. Without a
safety device the increase in pressure
could cause a rupture in the boiler.
The pressure in the coffee boiler should
never exceed 12 bar. The valve is hot,
so, using adequate protection, rotate the
expansion valve clockwise to increase
pressure. To decrease pressure rotate the
expansion valve counter clockwise (See
the following diagram).
WARNING
EN
The expansion valve can discharge water as
hot as 200°F / 93°C. Adequate protection for
handling this component is needed before
atTempting to adjust.
10
Figure 6 - Expansion Valve Adjustment
7) Adjusting Water Pump Pressure.
The water pump is factory set at 9 bar
pressure. If it becomes necessary to
change the pressure please use the
following procedure:
3. Adjust the water pump pressure to the
desired measurement.
4. Rotate Clockwise to increase pressure
and counter clockwise to reduce
pressure.
NOTE: The water pump pressure should be
adjusted when the machine is operating
and coffee is present in the portafilter.
Figure 7 - Water Pump Pressure Adjustment
EN
1. Remove the left side cover assembly.
2. Locate the water pump adjustment
screw and loosen the lock nut.
11
5. Operation
1. Installing the Portafilters.
Install the portafilter by inserting it into
the group head and rotate the handle
from left to right. Once the portafilter is
inserted properly, you can press one of the
brewing buttons on the keypad (AV model)
or move the paddle handle from right to
left (MP Model) to start the flow of water
through the portafilter. Please refer to
the Software Programming Manual for a
description of the functions of the keypad.
It is important that the portafilter is at
operating temperature prior to filling with
coffee. Allow hot water to pass through
the empty portafilter for a few seconds
before the brewing process to pre-heat the
portafilter.
FILTER
BASKET
SPRING
PORTAFILTER
EN
O-RING
GASKET
12
Figure 8 – Portafilter
DOUBLE
SNAP-ON
SPOUT
Note: It is important to leave the portafilter
installed in the espresso machine when
not in use. The portafilter must remain
heated for the brewing process to function
correctly.
2. Brewing Coffee. It is now possible to remove
the portafilter to make a coffee beverage.
Place some ground coffee in the portafilter
basket using the single or double basket.
Press down on the ground coffee with the
supplied tamper and install the portafilter
on the GS/3. On AV model press a brew
button to begin the brewing process, or
move the paddle handle from right to left
to begin brewing on MP model (see Fig.2).
Note: Some users believe it is important to
allow water to pass through the the group
head prior to installing the portafilter
to flush any remaining coffee oils and
particles from the group head. Some
also flush just after brewing for the same
reason. Please experiment to make the
best possible procedure for your coffee.
There are many techniques for brewing
espresso. You can find instructions for
many techniques on websites, blogs and
forums. Some are even monitored by
professional baristas around the world.
NOTE: It is important to have a sufficient
volume of liquid in the steaming pitcher.
Therefore if you intend to steam small
amounts of milk it is necessary to use a
small pitcher. If you intend to steam larger
quantities of milk then it is necessary to
use a larger steaming pitcher.
Using too little milk in a steaming pitcher
can allow the milk to be “blown out” of the
pitcher. A good rule to follow is to fill the
steaming pitcher only half full of liquid.
Note: In order to prevent the heated liquid
from being sucked back into the steam
boiler it is recommended that you purge
the steam system after heating any liquid.
Purge the system by opening the steam
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 steaming pitcher to the steam boiler
(via vacuum created from cooling parts).
This condition is undesireable and can
cause contamination in the steam boiler.
4. Dispensing Hot Water.
You may dispense hot water by using the
hot water nozzle. To dispense hot water
press the hot water button.
Figure 9 - Hot Water Button
This button commands the hot water
delivery. The volume of water delivered
may be adjusted via the display (see the
Software Programming Manual for further
instructions). The temperature of the water
dispensed may be adjusted by adjusting
the mixing valve under the right side cover
of the espresso machine (see machine
description diagram, Figure 2, and the
instructions on the next page).
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 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
3. Dispensing Steam.
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 the steam wand into the liquid to be
heated. Depress the steam valve lever to
activate the steaming process.
The steam valve has a variable flow control.
The steam valve will lock in the fully on
position only.
The steam will transfer heat to the liquid
raising its temperature. Be careful not to
allow liquid to overflow in order to avoid
severe burns.
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.
13
6. Key Features
1. Controlling the Brew Process Using Volumetric
Programming.
This espresso machine allows the
volumetric programming of each of the
first 4 buttons on each group (numbered
left to right). Please consult the Software
Programming
Manual
for
further
instructions.
EN
2. Hot Water Dispensing.
Hot water may be dispensed from the
Hot Water Wand on the right side of the
machine. This is accomplished by pressing
the hot water button (Fig.9). The amount
of water dispensed can be programmed via
the digital display. Please consult Software
Programming Manual for programming
instructions. The temperature of the hot
water may be adjusted slightly via the
Hot Water Adjusting Knob. This adjusting
knob is hidden under the right side panel
assembly. The knob protrudes slightly
form the bottom of the side panel. To find
this knob, look at the bottom edge of the
right side panel.
The knob may be turned by sliding a finger
under the side panel from front to rear (to
decrease temperature) or from rear to front
(to increase temperature).
14
3. Quick Keys.
The GS/3 has 4 Quick Keys to allow the
user to gain quick and easy access to
important parameters that may be changed
frequently. Please see the Software
Programming Manual.
4. Water and Drain Connection Kit.
The GS/3 comes with a main water supply
and waste drain connection kit. This kit
allows the GS/3 to be connected to the
main water supply and the main waste
drain system. Instructions for installing
this kit are contained in the GS/3
Installation Manual. The conversion kit
contains the following items:
913 (CE) / 914 (ETL-USA)
L325 (CE)
L326 (ETL/USA)
H.1.010.01
F.8.002
F.8.003
L312
L308
5. General Notes for Coffee Preparation. The
portafilters must remain heated 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 can be accomplished
by leaving the portafilters installed in the
machine when not in use. The portafilters
may also be actively heated by activating
one of the brew buttons to flush hot water
through the portafilter then turning off the
water flow.
6. Coffee Grind.
The size of the coffee granules is extremely
important in preparing a good cup of
coffee, along with the type of coffee blend
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
6g). The best grind is that which allows
coffee to flow out from the portafilter
spouts neither too slowly, drop by drop, nor
too quickly. A general rule is that a double
dose should dispense approximately 60mL
/ 2 fluid oz. of espresso in approximately
25 seconds. This time may be adjusted by
varing the coarseness of the grind.
N.B.
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 necessary
to perform some cleaning cycles before
brewing beverages as follows:
• Group: with the portafilter engaged in
the group brew water through it 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 1 liter of water to be
brewed.
• If using machine with water reservoir,
change the water in the reservoir daily.
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 connection
via a mains tap.
• Disconnect the machine from the
electrical mains.
WARNING
If the above-mentioned instructions are not
adhered to the manufacturer cannot be held
responsible for damage to persons or things.
EN
7. IMPORTANT To improve the flavor profile
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 Software Programming Manual for
detailed instructions).
15
7. Preventative Maintenance and Cleaning
Cleaning (Daily)
1. Cleaning the Diffuser Screen.
During
the
discharge
operation
(subsequent to coffee brewing), small
amounts of coffee grounds may slowly
build-up on and obstruct, even partially,
the diffuser screen. Turn off the machine
and remove the diffuser screen by
unscrewing the diffuser screw. Soak in
detergent powder liquid following the
instructions of detergent manufacturer.
Rinse thoroughly with clean water. Install
and run hot water through the group head
several times with the screen installed.
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.
heat-resistant container and heat.
• If using stainless steel portafilters with
snap-on spouts remove the spout.Immerge
filters and metallic parts of portafilters
(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 several
times with the filter and portafilter
engaged.
CAUTION
4. Cleaning the Drain Box.
Remove the drain box assembly and wash
each of the components with hot soapy
water. Rinse thoroughly and reinstall the
drain box assembly. Hand wash each part
with water containing mild soap.
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.
• Rinse the group using a normal filter
in the portafilter, by running hot water
through it several times.
EN
2. Cleaning the Brewing System.
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
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3. Cleaning Filter Baskets and Portafilters.
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
CAUTION
THE MACHINE MUST NOT BE DIPPED IN, NOR SPLASHED
WITH, WATER IN ORDER TO CLEAN IT. FOR CLEANING
OPERATIONS, PLEASE FOLLOW THE INSTRUCTIONS
VERY CAREFULLY.
5. Cleaning the Body.
Wipe the stainless steel surfaces with a
soft, non abrasive cloth in the direction of
the glazing marks, if any. Do not use any
alcohol or solvents whatsoever on painted,
imprinted, or plastic parts in order not to
damage them. Clean the side panels using
6. Cleaning the Hot Water and Steam Nozzles.
Steam nozzles must be cleaned
immediately after use with a damp cloth
and by producing a short burst of steam
so as to prevent the formation of deposits
inside the nozzles themselves, which
may alter the flavor of other drinks to
be heated. Hot water nozzles must be
cleaned periodically with a damp cloth. If
milk residue is present on the steam wand,
soak the tip in a container of hot water,
then it will be possible to wipe the tip
clean. Repeat process if residue remains.
NOTE: This cleaning schedule is based
upon a moderate to average use (20300) cups per day. If machine use is less
than moderate then this schedule may be
adjusted accordingly.
Cleaning (Periodic)
1. Draining Boilers. Both the coffee boiler
and the steam boiler may be drained and
refilled to reduce the chance of mineral
deposits build up on the inside walls of the
inside surfaces. Additionally this draining
process can be used to remove water that
has a bad odor or taste.
Drain the Steam Boiler: Turn OFF the machine.
Remove the left side panel assembly.
Locate the ball valve on the bottom left
side of the machine. Hold the ball valve
with one tool and remove the brass cap on
the end of the valve. Move the espresso
machine close to a waste drain and tip
machine at an angle to point the valve into
the waste drain.
Drain the Coffee Boiler: Turn OFF the
machine. Using adequate protection or
an appropriate tool, loosen the expansion
valve until water begins to flow freely. Then
remove the group cap cover and loosen
the bleed screw. When finished draining
empty the drain box assembly.
Steam boiler draining: to activate this function
you need to access the programming menu
(see p. 50).
2. Clean the Water Reservoir.
The water reservoir needs to be cleaned
periodically to ensure that no algae forms
on the inside surfaces. To clean first remove
the water reservoir form the machine.
Disconnect the clear plastic water intake
hose. Unscrew all screws from the cover
to separate the parts. Wash all parts with
warm soapy water. Hand wash each part
with water containing mild soap.
WARNING
The expansion valve can discharge water as
hot as 200°F / 93°C. Adequate protection for
handling this component is needed before
atTempting to adjust.
Cleaning frequency
Daily
• Portafilter
• Filter
• Diffuser screen
• Diffuser screw
• Steam wand (just after use)
• Drain grille
Weekly
• Water Reservoir
• Drain Box
Monthly
• Cleaning the hot water nozzle
EN
a soft cloth. Do not spray the keypad or
display with any liquid. Clean only with a
damp soft cloth.
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8. Mandatory Maintenance and Check-up Operations
These operations are in addition to the Maintenance and Periodic Cleaning Operations as specified in Chapter 7.
The following maintenance and check-up operations sould be carried out by a qualified technician.
The time required for the periodic maintenance is determinated by the quantity of daily work and/or coffee consumption.
N.B. These periodic maintenance operations are not covered by warranty.
▪▪ Replace group gaskets
▪▪ Replace diffuser screens
▪▪ Clean auto-fill probe
▪▪ Check vacuum breaker for
proper operation
▪▪ Inspect water inlet valve
▪▪ Inspect drain system for leaks
or clogs
▪▪ Check flow rate for each group
EVERY THREE/FOUR MONTHS
▪▪ Check brew temperature
on Installation, otherwise
▪▪ Check that brew pressure is
warranty is voided)
at 9bar
▪▪ Check filter basket condition
▪▪ Check all switches for proper
If AV Model:
operation
▪▪ Check shot volumes
▪▪ Check/note water hardness
▪▪ Test flowmeter’s ohm value
▪▪ (Water quality must be within
(ohm value is acceptable if
the range of parameters
greater than 1.8 K ohm, and
specified in the chapter
less than 2.2 K ohm
EVERY SIX/EIGHT MONTHS (in addition to the above)
▪▪ Rebuild steam assemblies
▪▪
▪▪
▪▪
▪▪
Replace portafilter baskets
Inspect group valve plungers
Inspect vacuum breaker
Inspect steam boiler
pressurestat
▪▪ Inspect expansion valve
EVERY YEAR (in addition to the above)
▪▪ Inspect electrical wiring
tightness at 2,4Nm of
condition
each cable on the terminal
▪▪ Inspect boilers safety switches
block.
▪▪ Replace over-pressure valve
(safety valve)
▪▪ Accurate control of the
If MP Model:
▪▪ Disassembly and lubrication
of the components of the MP
valve
EN
EVERY 3 YEARS (in addition to the above)
▪▪ Check the condition of the inside of boilers and if necessary rinse out with a proper cleaning product allowed for food and beverage
appliances.
18