GS3 Operating Manual (actual).indd

HANDMADE IN FLORENCE
GS/3
Owner’s Manual
Version 1.00
English
HANDMADE IN FLORENCE
Thank you for purchasing this La Marzoco
GS/3 Espresso machine.
For information about your GS/3 or to find others to share information about the GS/3,
please visit our website at www.lamarzocco.com. Here you will find a section dedicated
to La Marzocco GS/3 users. To gain access you will need to register your product. For
additional resources on espresso beverages and the processes for producing quality
in the cup, please visit the numerous websites available on the internet.
1
Version 1.00
La Marzocco, S.r.l.
Firenze, Italia
GS/3
English
Table of Contents
General Information ..........................................................................................3
Accessories .......................................................................................................4
Machine Description .........................................................................................5
Installation..........................................................................................................6
Operation............................................................................................................8
Key Features ......................................................................................................9
Preventative Maintenance and Cleaning .......................................................10
La Marzocco History .......................................................................................13
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Version 1.00
2
General Information
English
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.
3. 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 which the machine
will be attached.
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.
improper and/or irrational use.
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 back flushing 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.
10. In case 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.
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.
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 electctrical 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.
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.
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
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La Marzocco, S.r.l.
Firenze, Italia
GS/3
Accessories
1. Accessories
MODEL GS/3
QTY.
1
PART NO.
L111/2N
DESCRIPTION
PORTAFILTER ASSEMBLY, DOUBLE SPOUT, LION
1
L111/1
PORTAFILTER ASSEMBLY, SINGLE SPOUT, LION
1
L115/C
PORTAFILTER BASKET, BLIND
2
L115/A
SINGLE BASKET - HAND TAMP
2
L116/A
1
L117
DOUBLE BASKET - HAND TAMP
PLASTIC HAND TAMPER
1
UT005
1
L037/2PGR
1
L325/L326
1
L309
ARMORED DRAIN HOSE, CLEAR
1
L312
HOSE CLAMP
2
L120/2A
1
V063
HEX KEY, 5mm
DRAIN BOX HOSE BARB
STAINLESS STEEL BRAIDED HOSE 1/4G TO 5/16"-24 UNF
WASHER, FLAT, SEALING TYPE, M6 (12X6.25X0.75)
ESPRESSO MACHINE CLEANER
L115/A
L115/C
English
Check the package to make sure that the following
accessories are included in the packaging:
L116/A
V063
L120/2A
L117
L111/2N
L037/2PGR
UT005
L111/1
L309
L325/L326
L312
Figure 1 - Accessories
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Machine Description
Group Head
Group Cover
English
Cup Tray
Main Power
Switch
Pressure gauge
(Steam Boiler)
Pressure Gauge
(Coffee Boiler)
Steam Wand
Steam Activation
Lever
Display
Keypad
Hot Water
Dispensing Spout
Temperature Adjusting
Knob for Hot Water
Drain Box
Figure 2 - Machine Description
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Version 1.00
La Marzocco, S.r.l.
Firenze, Italia
GS/3
Installation
Espresso Machine Installation, GS/3
5mm Hex Key
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.
English
1. Fill Water reservoir with Water. Remove the drain tray
and slide the water reservoir until the water reservoir fill
cover is accessable. Remove the cover and fill water
reservoir with filtered water. Replace the fill cover and
slide the water reservoir to the operating position and
replace the drain tray. (See GS/3 Installation Guide for
addition instructions)
Bleed Screw
3. Filling the Boilers with Water. Once the espresso
machine has been unpackaged, placed on a hard
surface, and the water reservoir full, it will be necessary
to fill the boilers with water. Complete the following
steps to properly fill the boiler tanks:
4. 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 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.
5. 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
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. 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.
6. Verify filling of Boilers. The installation is now complete
and the espresso machine should be heating to the
operating temperatures.
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Figure 3 - "Bleed the Group"
7. Waiting for the Espresso Machine to Heat to Operating
Temperature. During this time, it may happen that the
pointer of the coffee boiler pressure gauge reaches 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.
Figure 4 - Key Pad buttons
Figure 5 - Key Pad buttons with lights on
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.
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6
Installation
English
8. 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 completly
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. To increase pressure rotate the expansion valve
clockwise. To decrease pressure rotate the expansion
valve counter clockwise (See the following diagram).
NOTE: The water pump pressure should be
adjusted when the machine is operating and coffee
is present in the portafilter.
Increase
Pressure
!
Decrease
Pressure
WARNING
!
The expansion valve can discharge water as hot as
200°F / 93°C. Adequate protection for handling this
component is needed before atempting to adjust.
Figure 6 - Expansion Valve Adjustment
9. 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:
1. Remove the left side cover assembly.
2. Locate the water pump adjustment screw and
loosen the lock nut.
3. Adjust the water pump pressure to the desired
measurement.
4. Rotate Clockwise to increase pressure and
counter clockwise to reduce pressure.
Lock Nut
Adjustment
Screw
Left Side Panel
Assembly
Water Pump
Pressure Adjustment
Screw
Figure 7 - Water Pump pressure Adjustment
7
Version 1.00
La Marzocco, S.r.l.
Firenze, Italia
GS/3
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 to start the flow of water through the
portafilter. Please refer to the Software Programming
Guide 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
Portafilter
Handle
Spout
Figure 8 - Portafilter
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
portafilter basket. Press down on the ground coffee
with the supplied tamper and install the portafilter on the
GS/3. Press a brew button to begin the brewing process.
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 to do the same. 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.
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.
Steaming milk for cappuccino’s and other beverages
is very easy but making it just right requires some
skill. Please experiment with various techniques to
find the best method for your milk. You can find many
discussion about the steaming of milk on the internet.
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 quantitles 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 heated liquid
container to the steam boiler (via vacuum created from
cooling parts). This condition is undesireable and can
cause contamination in the steam boiler.
4. Preparing Tea and Other hot Drinks. You may
dispense hot water by using the hot water nozzle. To
dispense hot water press the tea water button (#6).
Figure 9 - Tea 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).
3. Steaming Milk and Other Liquids. 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 full on position only.
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Version 1.00
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English
Operating the GS/3
Key Features
Key Features
English
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 Guide for further instructions.
2. Hot Water dispensing or “Tea Water”. 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 (button #6). The amount
of water dispensed can be programmed via the digital
display. Please consult the Software Programming Guide
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).
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 Guide
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. This procedure may be carried out
by activating one of the brew buttons to flush hot water
through the portafilter then turning off the water flow.
6. The size of the coffee granules is extremely important
in preparing a good cup of coffee, other than the type of
coffee blend used, quite obviously. The ideal grinding
can be determined by making various coffees using the
amount of ground coffee that you would normally use
for each cup (we recommend at least 6g). The best
grinding is that which allows coffee to flow out from the
filter holder 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 corseness of the grind.
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 the Software Programming Guide for detailed
instructions).
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
Guide. The conversion kit contains the following items:
WARNING
!
!
Do not remove the portafilter when 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.
!
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 200°F / 93°C - Steam Boiler 260°F / 125°C)
L325 / L326
L309
!
!
The expansion valve can discharge water as hot as
200°F / 93°C. Adequate protection for handling this
component is needed before atempting to adjust.
L037/2PGR
L312
9
WARNING
Version 1.00
La Marzocco, S.r.l.
Firenze, Italia
GS/3
Preventative Maintenance and Cleaning
Cleaning (Daily)
- Put 2 or 3 teaspoons of detergent powder for coffee
machines in about 1/2 liter of hot water.
- Dip filters baskets and filter holders into the solution,
being careful not to allow any rubber or plastic parts
to contact the solution, and leave submerged for
about 30 minutes.
- Rinse thoroughly with clean water and run hot water
through the group several times with the filters in
place.
- Make one cup of coffee and discard in order to
remove any unpleasant flavor remaining from the
cleaning process.
Group
Assembly
Diffuser
Screen
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. All components of the drain box assembly
are dishwasher safe.
Diffuser
Screw
2. Cleaning the Brewing System. Remove the
diffuser screen as described in the previous
step. Install the blind filter into one of the supplied
portafilter handles. Place a tablespoon of detergent
powder for coffee machines into the blind filter and
install the portafilter into the espresso machine.
Cycle the espresso machine on and off using the continuous
button. Cycle approximately 10-20 times. The cycling
of the espresso machine allows the detergent powder to
flow through the brew system cleaning the components.
Remove the portafilter from the espresso machine.
After cleaning, rinse the group head by activating the
continuous button or approximately 10 seconds. Using
a damp cloth wipe clean the area where the portafilter
engages into the group head. Then replace the diffuser
screen.
!
3. Cleaning filter baskets and portafilter handles
WARNING
!
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
a soft cloth. Do not spray the keypad or display with
any liquid. Clean only with a damp soft cloth.
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. After you can wipe the tip clean. Repeat process
if residue remains.
NOTE: This cleaning schedule is based upon a moderate
to average use (20-300) cups per day. If machine use is
less than moderate then this schedule may be adjusted
accordingly.
Do not remove the portafilter when 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.
!
CAUTION
!
This machine must not be dipped in, nor splashed with,
water in order to clean it. For cleaning operations,
please follow the instructions listed above very carefully.
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10
English
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. Remove the diffuser
screen by unscrewing the diffuser screw. Place 2 or 3
teaspoons of detergent powder for coffee machines in
about 1/2 a litre of hot water. Place the diffuser screen
and diffuser screw in the solution and leave them fully
submerged for about 30 minutes. Rinse thoroughly with
clean water. Install and run hot water through the group
head several times with the screen installed.
Preventative Maintenance and Cleaning
Cleaning (Monthly)
English
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.
2. Drain the Steam Boiler. 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.
3. Drain the coffee boiler. 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
4. 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. All parts are machine washable.
11
Version 1.00
La Marzocco, S.r.l.
Firenze, Italia
Preventative Maintenance and Cleaning
English
GS/3
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12
La Marzocco History
materials needed.
The History of La Marzocco
English
During the first decade of 1900, various attempts were
made in Italy at producing so-called espresso coffee
which might justly be considered the ancestors of the
machines currently produced. They were hot water and
steam generators with vertical boilers of a considerable
size which literally lorded it over the counters of the
coffee shops.
The manufacturers of these machines, as well as being
skilled craftsmen, were true pioneers in the sense that
they found themselves having to tackle and overcome
numerous difficulties: Giuseppe Bambi was part of
this small group of pioneers who, thanks to his strong
personality and wish to create something of his own,
managed to open a small workshop and set up his own
business.
After producing some coffee machines called “Fiorenza”
for one of his clients, he then began, with his brother
Bruno, to build coffee machines in his own right.
It was 1927 when the Officina Fratelli Bambi was
founded. They designed the machines entirely, made
them piece by piece, assembled and then sold them, all
at a time when every sale was a real conquest.
That’s why Giuseppe Bambi adopted the symbol of
the “Marzocco” for his company, a seated lion with the
crest of the Florentine Lily, the synonym of victory and
conquest, and called his company La Marzocco.
With the arrival of fascism and the consequent winds of
change reflected in decorative styles too, La Marzocco,
while continuing to produce machines with a vertical
boiler, began to design a more linear and essential
chassis.
The number of cups of coffee which people drank at
coffee shops was growing slowly but constantly so that
the need arose to reduce the dimensions and improve
the output of the coffee machines.
On 25th February, 1939 Giuseppe Bambi registered
the Patent for a project for the first espresso coffee
machine with a horizontal boiler.
This new arrangement meant all the brew groups could
be arranged in a line, making it possible to fit in a larger
number and making it easier and faster to operate them.
The events of war halted the production of coffee
machines and when the war was over things had to begin
again from scratch given the gloomy economic situation
and the difficulty of obtaining the machinery and raw
13
However, such was the ingrained enthusiasm and
entrepreneurial spirit that on 4th December, 1945 a
new patent was registered which was extended and
completed on 31st October, 1949.
This Patent, which enabled the resumption of business,
was for a semiautomatic mechanism which simplified
the movements and operations of the barista, as well as
releasing the pressure from the filter holder.
The 50s were characterised by water pressure
machines where the coffee was no longer infused
by filtering but by hot water pressed through it
mechanically at high pressure.
So a spring was used to act on a piston that pressed the
water through the coffee at a pressure of approximately
10 atmospheres.
This changed the traditional system of percolation
of coffee, as well as the taste. What was to be called
“coffee crema” from that time on had been invented.
Later, to reduce the physical effort required by the person
operating the machine, an electrically operated geared
motor was added to raise the piston.
That was how the first machine with automatic water
pressure and an electric motor was invented.
In 1961 the new headquarters of the company were built
on a hill outside Florence. During the tragic flood which
swept Florence in 1966, La Marzocco, although not
directly hit found itself having to face many difficulties.
At that time half of its work was in the capital city of
Tuscany and the surrounding area and while the clients
who resided in the flooded areas were able to postpone
payment of their bills, La Marzocco had to continue to
honour its payments without receiving such income.
Thanks to patient and constant work these difficulties
too were overcome and in 1970 La Marzocco began
to produce the new GS Series “continuous brewing
type machine after depositing the relative Patent on
1st December of that same year.
This was the first professional machine in the world
made with two boilers of which one was for the
production of hot water and steam while the other
was to produce hot water exclusively for brewing
coffee, totally independent of each other. This
solution which still characterises all the La Marzocco
machines today means that a large quantity of
steam is readily available at the desired temperature
without interfering in any way with the temperature
Version 1.00
La Marzocco, S.r.l.
Firenze, Italia
GS/3
of the water destined for coffee production, thus
enabling a more precise control of the temperature
using a highly sensitive thermostatic device, a result
which is not yet apparent on traditional single-boiler
machines.
As a result we’re looking to the future with a very positive
attitude, in the certainty that the cult of excellent espresso
coffee will become increasingly known around the world.
We remain ever attentive and welcoming of suggestions
and advice from our clientele.
That’s how production of the GS series started, with GS
standing for Gruppo Saturo or Saturated Group given that
the brew groups were attached directly to the boiler at a
higher level and their shape had been designed so as to
create a chamber in which the water could circulate.
In fact we deem many of our clients to be true espresso
coffee fans and we’re doing all we can to provide them
with the best equipment with which to make coffee,
not forgetting of course the last and most important
characteristic for excelling at all levels in our field:
passion.
The boilers and the group chambers, that are completely
filled with water, during heating produce a spontaneous
circulation of the water inside the groups keeping the
temperature constant, a key factor in making top quality
coffee.
You can learn the technique but you can only develop
a passion through dedication, love, pride and respect in
your work.
The introduction of the GS onto the market was
immediately a great success, so much so that over time
its fame grew to the point that it became a sort of legend.
The GS series was followed by various variations to
the series, the GS-2 and the LINEA which were joined
in 1997, on occasion of the 70th anniversary of the
production of the first La Marzocco espresso coffee
machine, by the FB/70 which, given its unique design,
is still widely appreciated in the most avant-garde coffee
shops the world over.
Sincerely,
Piero Bambi
In 1995 the company structure of La Marzocco changed
and there was an internal reorganisation of the company
including the production, customer services and
administration departments. The entire organisation chart
saw the addition of new, highly-qualified technicians, new
bilingual staff to facilitate relations with foreign markets
and new staff specialised in research and development of
the commercial sector.
All this helped us to:
Increase production, increasing the number of countries
exported to throughout the world to about 50.
•
•
Create 3 new machine models, renewing not just the
external chassis, but introducing extremely important
technological innovations for the espresso coffee market
like the new GB/5 and FB/80 which use PID technology
and other innovations unique to the sector in terms of
thermal stability; and the GS/3
•
Design and put into production a grinder-doser, the
Swift model, which grinds, tamps and doses the coffee
automatically at each cycle.
•
Set up monthly technical training courses for after-sales
assistance and preparation of drinks Latte Art & Caffè
Espresso.
•
Become the official sponsor and supplier of the machines
for the WBC, the World Barista Championship.
www.lamarzocco.com
Version 1.00
14
English
La Marzocco History
HANDMADE IN FLORENCE
GS/3
Software Programming Guide
Version 1.09
GS/3
English
Table of Contents
Programming Introduction
Programming Keypad�������������������������������������������������������������������������������������������������������������������������������2
Digital Display�������������������������������������������������������������������������������������������������������������������������������������������2
Accessing Programming Mode
Programming Mode����������������������������������������������������������������������������������������������������������������������������������3
Initial Installation
Initial Installation���������������������������������������������������������������������������������������������������������������������������������������4
Start Up Procedures
Turning the Espresso Machine On�����������������������������������������������������������������������������������������������������������5
Shut Down Procedures
Turning the Espresso Machine Off�����������������������������������������������������������������������������������������������������������6
Quick Access Programming (Quick Keys)
Quick Keys������������������������������������������������������������������������������������������������������������������������������������������������7
“Machine OFF” Programming
Language��������������������������������������������������������������������������������������������������������������������������������������������������9
Name������������������������������������������������������������������������������������������������������������������������������������������������������10
Heating (Power Mode)���������������������������������������������������������������������������������������������������������������������������� 11
Water Reservoir (Tank)���������������������������������������������������������������������������������������������������������������������������12
Tea Water������������������������������������������������������������������������������������������������������������������������������������������������13
Steam Boiler Probe Sensitivity���������������������������������������������������������������������������������������������������������������14
Service Cycles����������������������������������������������������������������������������������������������������������������������������������������15
Temperature Measurement Units�����������������������������������������������������������������������������������������������������������16
Proportional, Integral, Derivitive (PID) Settings (Coffee Boiler)��������������������������������������������������������������17
Proportional, Integral, Derivitive (PID) Settings (Steam Boiler)��������������������������������������������������������������18
PID Setting����������������������������������������������������������������������������������������������������������������������������������������������19
Coffee Boiler Temperature Offset�����������������������������������������������������������������������������������������������������������20
Steam Boiler Temperature Offset�����������������������������������������������������������������������������������������������������������21
Water Filter Alarm�����������������������������������������������������������������������������������������������������������������������������������22
“Machine ON” Programming
Water Volume Programming�������������������������������������������������������������������������������������������������������������������23
Clock Adjust��������������������������������������������������������������������������������������������������������������������������������������������24
Auto ON/OFF �����������������������������������������������������������������������������������������������������������������������������������������25
Coffee Boiler Temperature����������������������������������������������������������������������������������������������������������������������26
Steam Boiler Temperature����������������������������������������������������������������������������������������������������������������������27
Pre-Infusion or Pre-Brewing�������������������������������������������������������������������������������������������������������������������28
Service Phone����������������������������������������������������������������������������������������������������������������������������������������29
Cronos Function�������������������������������������������������������������������������������������������������������������������������������������30
Troubleshooting
Alert Messages���������������������������������������������������������������������������������������������������������������������������������������31
www.lamarzocco.com
Version 1.09
Programming Introduction
Description
English
● This espresso machine has a very powerful CPU and
many configurable settings.
● Additionally, there are many feedback controls
employed in this espresso machine to troubleshoot
problems should they occur.
● The following is a brief introduction to the controls and
display and how they interact with the operator.
Digital Display
LaMarzocco 09:30
Firenze Italia
The digital display (display) is a backlit display capable of displaying 2 lines of 16 characters.
The display enables the operator to interact with the espresso machine to visibly change
parameter values. The display also provides valuable information to the operator. There are
several warnings that the can be displayed to alert the operator of an unusual condition or a fault.
Additionally, simple messages are displayed alerting the operator that an action has been started
Programming Keypad
The keypad has two functions. The first is for control of the espresso machine. The second is for
programming individual software parameters.
The
and
the buttons are used to change the values of the individual parameters. The
label for these buttons are “Espresso” and “2 Espressos” respectively.
The
button is used to access certain parameters and for advancing the cursor within a
parameter. The label for this button is “Coffee”.
The
button is currently not used in programming mode. The label for this button is “2 Coffees”.
The
button is used to access the programming mode. This button is also used as a function
key and to scroll through parameters. The label for this button is “Continuous”.
The
button is used to turn on and turn off the espresso machine and to activate the
dispensing of the Tea Water
Version 1.09
La Marzocco, S.r.l.
Firenze, Italia
GS/3
Accessing Programming Mode
09:30
Programming Mode
English
LaMarzocco
Description
● To change the values of any parameter the operator
must first enter into the programming mode.
● There are two levels within the programming mode
that allow the programming of specific parameters.
● The two programming levels are as follows
● Machine “On” - The parameters contained within this
level are ones the operator can change to affect the
quality of the espresso.
● Machine”Off” - The parameters contained within
this level are ones the operator can change to affect
the performachine of the espresso machine. These
parameters are set at the factory and there is no need for
adjustment. La Marzocco reccomends that no changes
are made at this level.
Display
Operating Procedure
Machine On Programming Level
09:30
T:00
1
While the espresso machine is on, press and hold the
approximately 5 seconds the following display appears.
Doses Setting
Select within30s
2
This is the “Machine On” programming level. To program the dispense volume for each
button see “Water Volume Programming”. To access the “Machine On” programming
mode press the
button. Note: You must scroll to the end to exit programming mode.
200.5°F
La
Marzocco
button. After
Machine Off Programming Level
OFF
09:30
Language
English
1
While the espresso machine is off, press and hold the
approximately 5 seconds the following display appears.
2
This is the “Machine Off” programming level. Press the
button to scroll through the
available parameters. Note: You must scroll to the end to exit programming mode.
www.lamarzocco.com
Version 1.09
button. After
Initial Installation
First installat.
Enter to confirm
Initial Installation
English
Description
● This is the initial display shown when first installing this
espresso machine.
● NOTE: If machine has been bench tested by your
local distributor you will not see this first display.
NOTE: Prior to turning on the espresso
machine, please read the Installation Guide
Display
Operating Procedure
button confirm that this in the initial installation of this espresso machine.
First installat.
Enter to confirm
1
Press the
OFF
2
Please refer to the section “Turning the Espresso Machine On” to continue
09:30
Version 1.09
La Marzocco, S.r.l.
Firenze, Italia
GS/3
Start Up Procedures
Description
● The following is the procedure for turning on the power NOTE: If the message “First Installat. Enter to confirm”
to the espresso machine.
appears in the display, please see the preceding page
entitled “Initial installation”
● Please follow the procedures carefully to avoid any
damage to the espresso machine.
Display
3D5
OFF
DE LUXE MAR
Ver 1.09
Operating Procedure
1
Turn the Main Switch to the On position.
2
The message at left will be displayed briefly. This message indicates the revision level of
the software installed in this espresso machine. Then the following message is displayed.
3
To complete the turn on process, press the
button and the display at left is shown.
The machine begins to automatically fill the steam boiler until full. When the espresso
machine reaches operating temperature, all keypad lights will light indicating that the
espresso machine is ready to use.
09:30
170.5°F
06:30
La Marzocco T:00
NOTE: Ensure all air is removed from the group prior to staring the espresso
machine. This only needs to be completed once during the initial setup or when
water is drained from the coffee boiler.
!
WARNING
!
HAZARDOUS VOLTAGE DISCONNECT FROM POWER SUPPLY
BEFORE SERVICING
www.lamarzocco.com
Version 1.09
English
Turning the Espresso Machine On
Shut Down Procedures
200.5°F
09:30a
La Marzocco T:00
Turning the Espresso Machine Off
English
Description
● The following is the procedure for turning off power to
the espresso machine.
● Please follow the procedures carefully to avoid any
damage to the espresso machine.
● This machine has two off settings. One setting turns
off all of the components in the espresso machine and
the other turns off power to the complete espresso
machine.
Display
Operating Procedure
1
The following is the procedure for safely turning off the espresso machine.
170.5°F
06:30
La Marzocco T:00
2
Press and hold the
following:
OFF
3
This is the OFF setting used in the normal operating conditions.
4
During servicing or other conditions that warrant, the main switch should be turned to the
OFF position.
09:30
button then press the
button. The display changes to the
The espresso machine is off and display should be blank. It is important to follow this
procedure when turning off the machine. Failure to do so can damage the electronics.
!
!
WARNING
HAZARDOUS VOLTAGE DISCONNECT FROM POWER SUPPLY
BEFORE SERVICING
Version 1.09
La Marzocco, S.r.l.
Firenze, Italia
GS/3
Quick Access Programming (Quick Keys)
English
Quick Keys
Description
● For convienience, there is access to 4 parameters of
the software without entering program mode.
Quick Key
Number
Function
● These parameters are accessed through the use of
“Quick Keys”.
1
n/a
2
Coffee Boiler Temperature
● To use the Quick Keys, first the function button is
pressed and then the quick key is accessed.
3
Steam Boiler Temperature
4
Pre-Brewing enable
● In the current version of the software (ver 1.09) the
following quick keys are available:
6
Machine Off function
Display
Quick Key 1
Press and hold the
button, then press the
button.
Coffee Boiler
200.5 °F
Quick Key 2
Press and hold the
button, then press the
button.
Steam Boiler
260.0 °F
Quick Key 3
Press and hold the
button, then press the
button.
Quick Key 4
Press and hold the
button, then press the
button.
Not
Available
T.
T.
Operating Procedure
Pre Brewing
Enabled
NOTE: Quick Keys only function when the espresso machine is on and operating
www.lamarzocco.com
Version 1.09
English
Version 1.09
La Marzocco, S.r.l.
Firenze, Italia
GS/3
“Machine OFF” Programming
Language
English
English
Language
Description
● This parameter allows the operator to change the
language of the display.
Display
Operating Procedure
1
Enter into “Machine Off” programming mode.
Language
English
2
Press the
Temperature
°F
3
When finished, press the
OFF
09:30
www.lamarzocco.com
button or the
button to change the language.
button to continue to the next parameter.
Version 1.09
“Machine OFF” Programming
Name
----------------
Name
English
Description
● This parameter allows the technician to program a 16
character user name.
● The user name is displayed continuously on the
display on the second line.
● The user name is not displayed when the Crono
Function is ENABLED.
Display
Operating Procedure
1
Enter into “Machine Off” programming mode.
Language
English
2
Scroll through the displayed parameters using the
appears:
Name
3
Press the
Name
XXXXXXXXXXXXXXXX
4
Press the
button to advance to the next character. Repeat step 3-4 to program
remaining characters
5
When finished, press the
OFF
09:30
10
or the
button until the following display
button to change the value of the flasing parameter.
button to continue to the next parameter.
Version 1.09
La Marzocco, S.r.l.
Firenze, Italia
GS/3
“Machine OFF” Programming
Heating
Full
English
Heating (Power Mode)
Description
● This espresso is equipped with a power saving feature
that allows the espresso machine to operate at lower
power if needed.
● There are two options in Power saving mode:
● Full - This mode gives full power to both the coffee
boiler and the steam boiler.
● While in power saving mode you may experience
● Half - In this mode the power is alternated between the
slightly longer steam recovery time. The steam boiler
pressure/temperature may be adjusted to compensate for coffee boiler and the steam boiler.
this if needed.
Display
OFF
Operating Procedure
1
Enter into “Machine Off” programming mode.
Language
English
2
Scroll through the displayed parameters using the
appears:
Heating
Full
3
Press the
4
When finished, press the
09:30
www.lamarzocco.com
or the
button until the following display
button to change the value between Half and Full.
button to continue to the next parameter.
Version 1.09
11
“Machine OFF” Programming
Water Tank
Present
Water Reservoir (Tank)
English
Description
● This parameter allows the user to choose the use of
a water reservoir. If the espresso machine is connected
directly to the water supply, then this value should be set
to “not present”.
Display
Operating Procedure
1
Enter into “Machine Off” programming mode.
Language
English
2
Scroll through the displayed parameters using the
appears:
Tank
Present
3
Press the
4
When finished, press the
OFF
09:30
12
or the
button until the following display
button to change the value between Present and Not Present.
button to continue to the next parameter.
Version 1.09
La Marzocco, S.r.l.
Firenze, Italia
GS/3
“Machine OFF” Programming
Tea Water
with Pump
English
Tea Water
Description
● This parameter allows the technician to select the
activation of the water pump during hot water dispensing.
● When hot water is drawn from only the steam boiler
this parameter should be set to “without pump”
● If the optional adjustable temperature hot water
dispense valve is installed, this parameter is set to “with
pump”.
Display
OFF
Operating Procedure
1
Enter into “Machine Off” programming mode.
Language
English
2
Scroll through the displayed parameters using the
appears:
Tea Water
with Pump
3
Press the
4
When finished, press the
09:30
www.lamarzocco.com
or the
button until the following display
button to change to either “with Pump or “without Pump”.
button to continue to the next parameter.
Version 1.09
13
“Machine OFF” Programming
ProbeSensitivity
LOW
Steam Boiler Probe Sensitivity
English
Description
● This parameter allow the user to set the probe
sensitivity depending of the hardness of the water
Display
OFF
09:30
Language
English
Probe
14
Sensitivity
Low
Operating Procedure
1
Enter into “Machine Off” programming mode.
2
Scroll through the displayed parameters using the
appears:
3
Press the
4
When finished, press the
or the
button until the following display
button to change the value between Low, Mid and High.
button to continue to the next parameter.
Version 1.09
La Marzocco, S.r.l.
Firenze, Italia
GS/3
“Machine OFF” Programming
Service Cycles
English
Service Cycles
0
Description
● This parameter allows the user to program a threshold
number of cycles when the machine prompts for service.
● When Prompted for Service, the “Service Phone”
number will be displayed.
Display
Operating Procedure
1
Enter into “Machine Off” programming mode.
Language
English
2
Scroll through the displayed parameters using the
appears:
Service Cycles
0
3
Press the
4
When finished, press the
OFF
09:30
www.lamarzocco.com
or the
button until the following display
button to change the value (range =9999).
button to continue to the next parameter.
Version 1.09
15
“Machine OFF” Programming
Temperature
°F
Temperature Measurement Units
English
Description
● This parameter is set at the factory at the request of
the local distributor.
● This parameter has two options Celsius (°C) or
Fahrenheit (°F)
Display
Operating Procedure
1
Enter into “Machine Off” programming mode.
Language
English
2
Scroll through the displayed parameters using the
appears:
Temperature
°F
3
Press the
or the
Fahrenheit (°F).
button to change the value to either Celsius (°C) or
4
When finished, press the
button to continue to the next parameter.
OFF
09:30
16
Version 1.09
button until the following display
La Marzocco, S.r.l.
Firenze, Italia
GS/3
kP
8.0
kI
0.15
kD
10.0
Proportional, Integral, Derivitive (PID) Settings (Coffee Boiler)
Description
● This parameter is preset at the factory based upon
theoretical calculations and physical experiments.
● It is important to write down the values before
making changes to be sure you can return to the factory
programming if unexpected results occur.
● It is not recommended that these numbers are
changed.
● Changes to these parameters can cause unexpected
results.
● The factory default values are listed in the display
graphic above
● Qualified technicians may wish to experiment with
different values.
Display
OFF
Operating Procedure
09:30
Language
English
C
kP
8.0
kI
0.15
kD
10.0
1
Enter into “Machine Off” programming mode.
2
Scroll through the displayed parameters using the
appears:
3
Press the
4
When finished, press the
www.lamarzocco.com
or the
button until the following display
button to change the value of the flasing parameter.
button to continue to the next parameter.
Version 1.09
17
English
C
“Machine OFF” Programming
“Machine OFF” Programming
S
kP
8.0
kI
0.15
kD
10.0
Proportional, Integral, Derivitive (PID) Settings (Steam Boiler)
English
Description
● This parameter is preset at the factory based upon
theoretical calculations and physical experiments.
● It is important to write down the values before
making changes to be sure you can return to the factory
programming if unexpected results occur.
● It is not recommended that these numbers are
changed.
● Changes to these parameters can cause unexpected
results.
● Qualified technicians may wish to experiment with
different values.
Display
OFF
Operating Procedure
09:30
Language
English
S
kP
8.0
18
kI
0.15
kD
10.0
1
Enter into “Machine Off” programming mode.
2
Scroll through the displayed parameters using the
appears:
3
Press the
4
When finished, press the
or the
button until the following display
button to change the value of the flasing parameter.
button to continue to the next parameter.
Version 1.09
La Marzocco, S.r.l.
Firenze, Italia
GS/3
“Machine OFF” Programming
PID Setting
Description
● This parameter sets a range in which the PID algorithm ● It is important to write down the number before any
changes are made to make sure you can return to the
is active.
factory programming if unexpected results occur.
● This parameter is preset at the factory based upon
● Experienced technicians may wish to experiment with
theoretical calculations and physical experiments.
different values.
● It is not recommended that this number is changed.
● The lowest value for this parameter is 3.6.
● Changes to this parameter can cause unexpected
results.
Display
Operating Procedure
1
Enter into “Machine Off” programming mode.
Language
English
2
Scroll through the displayed parameters using the
appears:
PID Setting
9.0 F
3
Press the
4
When finished, press the
OFF
09:30
www.lamarzocco.com
or the
button until the following display
button to change the value of the parameter.
button to continue to the next parameter.
Version 1.09
19
English
PID Setting
9.0 °F
“Machine OFF” Programming
Coffee T. Offset
1.5 °F
Coffee Boiler Temperature Offset
English
Description
● This parameter isused to calibrate the coffee boiler
temperature system to ensure the display temperature
accurately represents the temperature of the water
exiting the group head.
● It is important to write down this value before making
changes to be sure you can return to the factory
programming if unexpected results occur.
● This parameter is preset at the factory based upon
initial tests of this espresso machine.
● It is not recommended that this number is changed.
● Changes to this parameter can cause unexpected
results.
Display
Operating Procedure
1
Enter into “Machine Off” programming mode.
Language
English
2
Scroll through the displayed parameters using the
appears:
Coffee T. Offset
1.5 °F
3
Press the
4
When finished, press the
OFF
09:30
20
or the
button until the following display
button to change the value of the parameter.
button to continue to the next parameter.
Version 1.09
La Marzocco, S.r.l.
Firenze, Italia
GS/3
“Machine OFF” Programming
Steam Boiler Temperature Offset
Description
● This parameter is used to calibrate the steam boiler
temperature system to ensure accuracy.
● This parameter is preset at the factory based upon
initial tests of this espresso machine.
● It is important to write down this value before making
changes to be sure you can return to the factory
programming if unexpected results occur.
● It is not recommended that these numbers are
changed.
● Changes to this parameter can cause unexpected
results.
Display
Operating Procedure
1
Enter into “Machine Off” programming mode.
Language
English
2
Scroll through the displayed parameters using the
appears:
Steam T. Offset
0.0 °F
3
Press the
4
When finished, press the
OFF
09:30
www.lamarzocco.com
or the
button until the following display
button to change the value of the parameter.
button to continue to the next parameter.
Version 1.09
21
English
Steam T. Offset
0.0 °F
“Machine OFF” Programming
Water
Filter
0
Water Filter Alarm
English
Description
● This parameter allows the technician to preprogram an
alarm that notifies the user when the water filter requires
service or replacement.
● When the programmed volume of water has passed
through the espresso machine the error message
“Change Filter” is displayed.
● A value of 0 (zero) disables the filter alarm parameter.
Display
OFF
09:30
Language
English
Water
Filter
0
Filter
Alarm
Operating Procedure
1
Enter into “Machine Off” programming mode.
2
Scroll through the displayed parameters using the
appears:
3
Press the
4
When finished, press the
5
When the espresso machine has dispensed the value of this parameter the message
“Filter Alarm” will appear.
or the
button until the following display
button to change the value of the parameter.
button to continue to the next parameter.
NOTE: To reset this message turn off the espresso machine using the main power
switch. Then, press and hold the
button and the
button and turn on
Filter
Reset
22
the machine using the main power switch. Hold both buttons until the following
message appears. Release both buttons and continue to use the espresso
machine as normal.
Version 1.09
La Marzocco, S.r.l.
Firenze, Italia
GS/3
“Machine ON” Programming
Water Volume Programming
Description
● This parameter allows the operator to program the
water volume (shot volume) for the individual buttons on
the keypad.
Display
● The saved program is a number. This number relates
to the number of pulses the flowmeter delivers to the
CPU. Once the programmed number of pulses is
received by the CPU, the flow of water is stopped.
Operating Procedure
06:30
200.5°F
La Marzocco T:00
1
Enter into “Machine On” programming mode.
Doses Setting
Select within30s
2
Press one of the following buttons:
3
Water will begin to flow. When the desired amount of water has been dispensed, press
the same button again to stop the flow of water. The button is now programmed. Repeat
this process for subsequent buttons.
www.lamarzocco.com
Version 1.09
23
English
Doses Setting
select within 30s
“Machine ON” Programming
Clock Adjust
09:30
Wed
12h
Clock Adjust
English
Description
● This parameter allows the user to set the time of day
and the day of the week.
● There are 4 changeable values within this parameter:
● Hour
● This parameter is used to display time and is also used
● Minute
by the “Auto On/Off” parameter
● Day of week
● Hour Format 12h or 24h
Display
Operating Procedure
06:30
200.5°F
La Marzocco T:00
1
Enter into “Machine On” programming mode.
Doses Setting
Select within30s
2
Press the
3
Then press the
4
Press the
or the
5
Press the
button to advance to the next value.
6
When finished, press the
Clock
Adjust
Clock Adjust
09:30 thurs 12h
24
button to enter into programming mode.
button to access the adjustable parameters.
button to change the value of the flashing parameter.
button to continue to the next parameter.
Version 1.09
La Marzocco, S.r.l.
Firenze, Italia
GS/3
“Machine ON” Programming
On/Off
--.--
Auto ON/OFF
English
Auto
On:
Description
● This parameter allows the user to program the
espresso machine to turn on at a preset time and turn off
at a preset time.
● This feature also allows the espresso machine to
remain in the off condition for one repeating closed day.
Display
Operating Procedure
06:30
200.5°F
La Marzocco T:00
1
Enter into “Machine On” programming mode.
Doses Setting
Select within30s
2
Press the
3
Then press the
4
Press the
or the
5
Press the
button to advance to the next value.
6
When finished, press the
Clock
Adjust
Clock Adjust
09:30 thurs 12h
Auto
On:
On/Off
--:--
Auto
Off:
On/Off
--:--
button to enter into programming mode
button to access the adjustable parameters.
button to change the value of the flashing parameter.
Closed On
-------------------
www.lamarzocco.com
button to continue to the next parameter.
Version 1.09
25
“Machine ON” Programming
Temp
Cof. Boiler
200.5 F
Coffee Boiler Temperature
English
Description
● This parameter is set at the factory at a preset nominal ● The temperature of the water exiting the group head is
temperature.
held constant by means of the mass of the group casting.
Even though the temperature of the boiler may vary
● The temperature of the boiler is measured at the most slightly, the temperature of the water exiting the group is
critical point in the boiler where temperature fluctuation is constant.
the greatest.
● To properly calibrate the temperature of any espresso
machine it is import to measure the temperature of
the water exiting the group by means of an external
temperature measuring device. The difference of the
display temperature and the measured temperature
may be compansated by use of the “Coffee T. Offset”
parameter.
Display
Operating Procedure
06:30
200.5°F
La Marzocco T:00
1
Enter into “Machine On” programming mode.
Doses Setting
Select within30s
2
Press the
3
Then press the
4
Scroll through the displayed parameters using the
appears:
5
Press the
6
When finished, press the
Clock
Temp
Adjust
Cof. Boiler
200.5F
button to enter into programming mode
button to access the adjustable parameters.
or the
button until the following display
button to change the value of the parameter.
button to continue to the next parameter.
NOTE: It is also possible to change the temperature of the coffee boiler using the
“Quick Keys”. Please see the section titled “Quick Keys”
!
!
DANGER
THE STEAM BOILER CONTAINS WATER AT ELEVATED TEMPERATURES. WATER TEMPERATURE
OVER 125 °F CAN CAUSE SEVERE BURNS INSTANTLY OR DEATH FROM SCALDING.
26
Version 1.09
La Marzocco, S.r.l.
Firenze, Italia
GS/3
“Machine ON” Programming
Boiler Temp
245.5 F
Steam Boiler Temperature
English
Steam
Description
● This parameter is set at the factory at a preset nominal
temperature.
● The temperature of saturated water is proportional
to the pressure inside the Steam Boiler. Therefore it is
possible to regulate the pressure of the steam boiler by
means of electronic temperature control. Please use
the following tables as reference when setting the steam
boiler temperature.
!
Temperature
Pressure
247°F/119°C
1.0 bar
260°F/127°C
1.5 bar
272°F/133°C
2.0 bar
!
CAUTION
The saturation temperature of water will vary will ambient atmospheric pressure.
Tables in this manual are created for atmospheric pressure at sea level. Slight
adjustment in temperature will be required for elevations other than sea level.
Display
Operating Procedure
06:30
200.5°F
La Marzocco T:00
1
Enter into “Machine On” programming mode.
Doses Setting
Select within30s
2
Press the
3
Then press the
4
Scroll through the displayed parameters using the
appears:
5
Press the
6
When finished, press the
Clock
Adjust
Steam Boiler Temp
200.5 °F
button to enter into programming mode
button to access the adjustable parameters.
or the
button until the following display
button to change the value of the parameter.
button to continue to the next parameter.
NOTE: It is also possible to change the temperature of the steam boiler using the
“Quick Keys”. Please see the section titled “Quick Keys”
!
DANGER
!
THE STEAM BOILER CONTAINS WATER AT ELEVATED TEMPERATURES. WATER TEMPERATURE
OVER 125 °F CAN CAUSE SEVERE BURNS INSTANTLY OR DEATH FROM SCALDING.
www.lamarzocco.com
Version 1.09
27
“Machine ON” Programming
PreBrewing
disabled
Pre-Infusion or Pre-Brewing
English
Description
● This parameter allows the user to enable or disable
the pre-brewing (also called pre-infusion) function.
● When enabled the user is able to program buttons 1-4.
Each button may have different programming.
● Pre-brewing has two values to adjust for each button.
“ON” time is the amount of time (in seconds) that the
brew valve is open during during the pre-brewing cycle.
“OFF” is the amount of time (in seconds) that the brew
valve is off during the pre-brewing cycle. After the prebrewing cycle has completed, the normal brew cycle
continues until complete.
Display
Operating Procedure
06:30
200.5°F
La Marzocco T:00
1
Enter into “Machine On” programming mode.
Doses Setting
Select within30s
2
Press the
3
Then press the
4
Scroll through the displayed parameters using the
appears:
PreBrewing
enabled
5
Press the
PreBrew
ON sec
Espresso
0.6
6
When enabled, additional parameters are displayed. Press the
to change the value.
PreBrew
OFF sec
Espresso
0.1
7
When finished, press the
button to continue to the next parameter. Repeat steps
6-7 for all 4 buttons. A value of zero disables this feature on the corresponding button.
Clock
Adjust
button to enter into programming mode
button to access the adjustable parameters.
or the
button until the following display
button to enable or disable this parameter.
or the
button
NOTE: It is also possible to enable and disable this parameter using the “Quick
Keys”. Please see the section titled “Quick Keys”
28
Version 1.09
La Marzocco, S.r.l.
Firenze, Italia
GS/3
“Machine ON” Programming
Service Phone
English
Service Phone
(555)123-4567
Description
● This parameter is a feature that can be used to store
the telephone number for a service company.
● This telephone number will be displayed when service
is required.
Display
Operating Procedure
06:30
200.5°F
La Marzocco T:00
1
Enter into “Machine On” programming mode.
Doses Setting
Select within30s
2
Press the
3
Then press the
4
Scroll through the displayed parameters using the
appears:
5
Press the
6
Press the
button to advance to the next character. Repeat step 5-6 to program
remaining characters
7
When finished, press the
Clock
Adjust
Service Phone
X
www.lamarzocco.com
button to enter into programming mode
button to access the adjustable parameters.
or the
button until the following display
button to change the value of the flashing parameter.
button to continue to the next parameter.
Version 1.09
29
“Machine ON” Programming
Crono Function
disabled
Cronos Function
English
Description
● When enabled, this parameter displays a timer that
times each shot.
● The timer is reset each time a button on the keypad is
pressed.
● When enabled, the Crono Function is continuously
displayed. The programmable name will not be displayed
when this parameter is enabled.
Display
Operating Procedure
06:30
200.5°F
La Marzocco T:00
1
Enter into “Machine On” programming mode.
Doses Setting
Select within30s
2
Press the
3
Then press the
4
Scroll through the displayed parameters using the
appears:
5
Press the
6
When finished, press the
Clock
Adjust
Crono Function
disabled
30
button to enter into programming mode
button to access the adjustable parameters.
or the
button until the following display
button to enable or disable this parameter.
button to continue to the next parameter.
Version 1.09
La Marzocco, S.r.l.
Firenze, Italia
GS/3
Troubleshooting
● This espresso machine is equipped with several
feedback mechanisms that alert the operator when an
unusual condition occurs. Additionally the espresso
machine will warn the operator when certain parameters
fall below or above the programmed point. These errors
and warnings will appear as a message in the display.
Message
First installat.
Enter to confirm
Coffee boiler
filled?
Corrupted
Data
● The following section will describe errors and warnings
that may appear in the display
Description
Remedy
This is the first installation of the
espresso machine and the CPU is
asking for verification of this event.
Press the ENTER button on group 1 keypad to confirm. Then will initialize the CPU and boot
the electronics.
This message is displayed after the
boilers have been drained. The CPU is
verifying that the coffee boiler is full.
Fill the coffee boiler with water (see operating manual for detailed instructions). Ensure that
all air is bled from the coffee boiler using the air bleed screw atop each group casting. The
CPU will display this message to ensure that the coffee boiler is full before supplying power
to the coffee boiler heating element.
This message is displayed when the
Most likely the machine power was disconnected with out first turning off the machine
CPU does not understand an instruction. through the keypad and display. Turn off machine using main switch to cycle power on and
off. This should clear the error
Filling-up
in progress
This message is displayed when the
steam boiler autofill cycle is activated
and water is entering the steam boiler.
No action is required when this message is displayed. This message is only displayed to
notify the operator of the active process.
Filling-up
Alarm
This message is displayed when the
CPU does not detect a full signal from
the steam boiler within the set time
interval.
When this message is displayed the CPU also shuts down and turns off power to the
machine (see the parameter “Level Timeout”). Press the ON/OFF button to reset this error.
This message is displayed when the
CPU does not receive a signal from the
Safety Probe in the steam boiler.
When this message is displayed the CPU turns off power to the steam boiler heating
element. The only way to reset this error is to repair the Safety Probe to restore the signal to
the CPU or fill the steam boiler with water.
Steam Boiler
Temperature
This message is displayed when the
steam boiler temperature exceeds the
maximum allowed temperature.
When this message is displayed call an authorized service technician to repair this fault. The
also CPU turns power off to the steam boiler.
Flowmeter
Alarm
This message is displayed when the
CPU does not receive the appropriate
signal from the flowmeter.
When the flowmeter alarm is displayed, the light on the corresponding button that initiated the brew cycle
will begin to flash. This problem is a result of water not flowing through the flow meter. This can be caused
by the coffee packed too tightly, a blockage in the tubes, a malfunctioning water pump, a faulty valve, or a
damaged flowmeter. Call a service technician to fix this problem.
Steam Boiler
Empty
Coffee Boiler
Heating
Coffee Boiler
Temperature
This message is displayed when
the coffee boiler does not reach
the minimum temperature with the
programmed time interval.
This message is displayed when the
coffee boiler temperature exceeds the
maximum allowed temperature.
www.lamarzocco.com
See the parameter “Heating Timeout” for more information.
If this happens call an authorized service technician to repair this fault. When this message
is displayed the CPU turns power off to the coffee boiler displayed.
Version 1.09
31
English
Alert Messages
HANDMADE IN FLORENCE
GS/3
Installation Guide
Version 1.02
GS/3
English
Table of Contents
Installation Guide
1.
2.
2a.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
Unpackage GS/3 Espresso Machine .................................................................. 2
Fill with water (Initial Fill) ..................................................................................... 2
Drain Box Alignment............................................................................................ 3
Connect to power supply..................................................................................... 4
Turn on main power ........................................................................................... 4
Turn on espresso machine .................................................................................. 5
Remove group cover ........................................................................................... 5
Remove air from group head (bleeding the group) ............................................. 6
Monitor coffee boiler pressure............................................................................. 6
Adjust the expansion valve.................................................................................. 7
Monitor steam boiler pressure............................................................................. 7
Brew espresso..................................................................................................... 8
Verify working boiler pressures ........................................................................... 8
Connect to main water supply ............................................................................. 9
Congratulations on your purchase of the
La Marzocco GS/3 espresso machine!
For the latest up to date information on the
GS/3 please visit our GS/3 website:
http://www.lamarzocco.com/gs3.html
www.lamarzocco.com
Version 1.02
1
Installation Guide
English
1
Unpackage espresso machine and set on a level surface. Ensure all accessories are
included with shipment. Check for any visable damage to espresso machine.
Water Reservoir
Drain Box
Fill Cover
Finger Grips
2
2
Remove/Open the fill cover and fill the reservoir with filtered water. Slide the reservoir back
into position and replace the drain box. Make sure the drain box is inserted fully. The water
reservoir must make contact with the level indicators on the rear side. Failure to make
contact will result in the display message “Refill Tank”. The message “Refill Tank” will be
displayed anytime the reservoir does not have contact with the level indicators.
NOTE: The GS/3 is configured to work with the water reservoir. To connect the GS/3 to the
mains water supply and the waste drain system, please refer to the section 13.
Version 1.02
La Marzocco, S.r.l.
Firenze, Italia
GS/3
English
Installation Guide
Alignment Holes
2a
Alignment
Pins
IMPORTANT NOTE:
The drain box must be installed correctly for the machine to function properly. The drain box has
two alignment pins that mate with two alignment holes on the base of the GS/3. When installing
the drain box, ensure that the alignment pins are inserted into the alignment holes. It may be
necessary to push slightly on the front of the drain box to achieve proper alignment.
www.lamarzocco.com
Version 1.02
3
Installation Guide
English
4
3
Connect the power cord to a power supply capable of supplying: 230 VAC and 10 amps (for
the 230 V version) or 120VAC and 15 Amps (for the 110 V version).
4
Turn on power by pressing the main power switch. The main power switch may be found on
the left rear of the machine.
Version 1.02
La Marzocco, S.r.l.
Firenze, Italia
GS/3
English
Installation Guide
5
Turn the Espresso machine on by pressing the on/off key (key #6). The espresso machine
will begin to fill both the steam boiler and the coffee boiler simultanously. The machine will
stop filling when the water reservoir is low. When the message “Refill Tank” is displayed,
refill the water reservoir. See Step #2 to fill water reservoir.
6
Now it is necessary to remove all of the air in the coffee boiler and saturate the group. This
is commonly referred to as bleeding the group. To do this, remove the group cover by
rotating the cover counter clockwise.
www.lamarzocco.com
Version 1.02
5
Installation Guide
English
7
Unscrew the bleed screw (approximately 1/2 turn) to release all air from the coffee boiler
(using the included 5mm hex key wrench). When water leaks from under the screw head,
tighten the screw. Note: It might be necessary to activate the brewing process to force water
into the boiler. To do this, press the continuous key until water leaks from under the screw
head. Then tighten screw. Replace group cover removed in step #6.
Steam Boiler
Pressure Gage
8
6
Coffee Boiler
Pressure Gage
Next it will be necessary to check the expansion valve. As the coffee boiler heats to operating
temperature the pressure in the coffee boiler will rise. There is an expansion valve behind the
drain tray that allows some water to escape during this process to limit the maximum pressure
in the coffee boiler to 12 bar. Please monitor the coffee boiler pressure gauge during the initial
heating process. You should notice the gauge approach 12 bar and stop. If the pressure gauge
does not reach 12 bar or if the pressure gauge rises above 12 bar, then it will be necessary to
adjust the expansion valve. Please follow the next step to properly adjust the expansion valve.
Version 1.02
La Marzocco, S.r.l.
Firenze, Italia
GS/3
English
Installation Guide
Drain Box
Expansion Valve
9
Please follow this procedure if it is necessary to adust the expansion valve. First remove the
drain box to access the expansion valve. The expansion valve protrudes through the sheet metal,
has the shape of a cylinder, is brass in color and approximately 25mm in diameter. To adjust the
expansion valve rotate the valve clockwise to raise the pressure and counter clockwise to reduce
the pressure. It may be necessary to use a tool such as a pair of pliers to rotate the expansion
valve Adjust in 1/4 turn or less increments until the desired pressure is achieved. Replace the
drain box after each adjustment to ensure the machine is operating correctly.
Steam Boiler
Pressure Gage
10
Coffee Boiler
Pressure Gage
You may also monitor the steam boiler heating progress by watching the Steam Boiler
Pressure Gage. The steam boiler is set at approximately 2.0 Bar of pressure at the factory.
Once the pressure gage reaches this point the heating will stop. When the coffee boiler
reaches operating temperature all lights on the keypad will light. Should you wish to adjust
the pressure of the steam boiler please refer to the Software Programming Guide under the
section “Steam Boiler temperature”.
www.lamarzocco.com
Version 1.02
7
English
11
When the espresso machine is ready, place ground coffee into the portafilter and
activate the brewing process. For additional information to operate this espresso
machine please refer the the owners manual or the software programming guide.
Steam Boiler
Pressure Gage
12
8
Coffee Boiler
Pressure Gage
When brewing, the coffee boiler pressure should be between 8-10 bar. The steam
boiler pressure should be set at 2 bar but can operate at any setting between 1.3
bar and 2 bar.
Version 1.02
La Marzocco, S.r.l.
Firenze, Italia
English
GS/3
Left Side Panel
Assembly
Water Pump
Access Hole
Pump Inlet Tube
13
Please follow this procedure to connect the GS/3 to the main water supply and the waste water
drain system:
1. Turn off the machine
2. Remove the drain box
3. Slide out the water reservoir from the machine base, disconnect the hose from the top of the
reservoir ans remove the water reservoir
4. Remove the left side panel assembly
5. Remove the pump inlet tube from the pump which connects the pump to the water reservoir
6. Connect the stainless steel braided hose (L325 or L326) to the water pump and pass through
the access hole on the base under the pump. This hose will connect the pump to the mains
water supply
7. Remove the drain box cap and insert the drain box hose barb fitting (L037/2PGR) - Do not over
tighten this part. Overtightening will damage the drain box.
8. Connect the clear armoured drain hose to the hose barb fitting and to the waste drain on the
other end
9. Replace the drain box on the machine base
10. Install the left side panel on to the machine
11. Turn on the water supply and the main power switch
12. Configure the “Water Tank” parameter in the software to “not present” (see the Software
programming guide for directions)
13. Turn on the machine
L325 (CE)
L326 (UL-USA)
www.lamarzocco.com
Barbed Fitting
(L037-2PGR)
Version 1.02
9
HANDMADE IN FLORENCE
GS/3
Parts catalog
Version 1.02
GS/3
English
Table of Contents
Coffee Boiler Assembly .................................................................................2
Steam Boiler Assembly..................................................................................3
Water Pump Assembly...................................................................................4
Steam Wand Assembly ..................................................................................5
Water Inlet Assembly .....................................................................................6
Electrical Components ..................................................................................7
Drain Box and Water Reservoir ....................................................................8
Exterior Components .....................................................................................9
www.lamarzocco.com
Version 1.02
1
Parts Catalog
English
L100/G110 (110V)
L100/G200 (200V)
L100/G
(220V)
B.2.006
(220V)
L100/1A
DADOM8
(6) PIECES
E.1.005
L276
L100/H
L037/3
E.6.002 (110V)
E.6.006 (200V)
E.6.004 (220V)
B.2.005
(110V)
NOTE: USE LR360/1
FOR SERIAL# 1-125
TL30
F.2.013
F.2.014
L110
H.1.009
L120/2
F.2.003
L.1.001
L120/2A
L103/GS3
A.2.012
L103/B
L103/A
L105/B8
L107
T.2.114
L106/V
L109
L053/1
L160/3
2
Version 1.02
La Marzocco, S.r.l.
Firenze, Italia
GS/3
English
Parts Catalog
NOTE: USE LR360/1
FOR SERIAL# 1-125
F.2.014
E.1.005
E.5.002
LA052
E.6.001 (110V)
E.6.005 (200V)
E.6.003 (220V)
NOTE: USE OF THIS ITEM
BEGAN WITH SERIAL #636
L100/1A
T.3.005
DADOM8
(3 PIECES)
L.1.002
L030
L180/1
L190
A.2.010
L100/1A
L138/3
L164
L037/3
A.2.011
L100/1A
F.1.019
F.2.014
L180/2.5
B.2.007
NOTE: USE LR360/1
FOR SERIAL# 1-125
T.1.046
F.1.018
A.2.011
H.1.007
T.2.117 L100/1A
F.3.008
L037/3
T.2.110
B.2.011
T.2.104
L292
T.3.004
L292/R
www.lamarzocco.com
Version 1.02
3
Parts Catalog
English
L307
B.2.008
L100/1A
T.2.118
A.2.016
L180/1
A.2.011
A.2.011
THIS PART WAS REPLACED
WITH PARTS SHOWN
AFTER SERIAL # 636
F.3.009
E.3.003
E.7.001 (110V)
E.7.003 (200V)
E.7.002 (220V)
E.2.013
T.3.003
E.2.014
C.1.053
E.2.012
F.3.009
4
Version 1.02
La Marzocco, S.r.l.
Firenze, Italia
GS/3
English
Parts Catalog
220V VERSION
110V VERSION
(USE HIS FIGURE FOR SERIAL #538 AND GREATER)
(USE THIS FIGURE FOR ALL 110V MACHINES)
T.2.101
T.2.101
F.2.017
A.5.006
F.1.015
H.1.003
T.3.001
H.2.003
H.1.008
H.1.004
A.1.009
I.5.002
C.1.064
I.1.026
I.4.001
F.3.004
F.4.007
T.2.102
T.2.102
L178
F.1.015
A.5.006
H.1.003
T.3.001
T.3.002
T.3.001
H.1.008
A.1.017
L178
A.1.009
I.5.002
F.3.004
C.1.064
T.3.002
T.3.002
F.4.007
I.1.026
L160/3
Available Steam Tips
L173
www.lamarzocco.com
L174
L175
Version 1.02
L178
5
Parts Catalog
English
220V VERSION
NOTE: USE THIS VERSION
FOR SERIAL #538 AND GREATER
T.2.109
110V VERSION
T.2.109
T.2.118
B.1.004
L134
L134/4
A.2.004
B.1.004
T.2.108
L100/D
B.1.005
L100/C
B.1.005
L100/E110 (110V)
L100/E200 (200V)
L100/E
(220V)
T.2.113
T.2.105
A.2.102
L053/110 (110V)
L053/200 (200V)
L053
(220V)
LAD070
T.2.106
B.2.008
A.2.101
LAD070/S
B.2.008
C.1.050
T.2.107
T.2.103
H.1.007
F.3.008
B.2.007
L140/C
L100/1A
B.2.008
LAD070/S1
LAD070/V
T.2.111
F.1.016
L053/2V
L100/H
L100/G110 (110V)
L100/G200 (200V)
L100/G
(220V)
L100/G110 (110V)
L100/G200 (200V)
L100/G
(220V)
3X Valve
6
2X Valve
Version 1.02
La Marzocco, S.r.l.
Firenze, Italia
GS/3
English
Parts Catalog
DADO4M
E.1.015
Wiring Components (Not Shown)
E.4.014
E.4.015
Wiring Harness, 220V and 110V
Signal Cable, SSR to Electronics Board (2 required)
5.506
Power Cord, 220V
E.4.019
Power cord 110V
LAD3D5/CO4 Flat Ribbon Cable for Key Pad and Display (2 required)
I.2.001
E.2.010
F.1.011
E.2.016
E.4.010
DADO3M
F.1.010
E.1.012 (110V AND 220V)
E.1.012.1 (200V)
E.2.009
VITE3X8
F.3.021
MUST BE ORDERED WITH
CONTACTS - C.1.051.1
www.lamarzocco.com
Version 1.02
NOTE: SPIRAL CONTACT METHOD
BEGAN WITH SERIAL #515
7
Parts Catalog
English
F.1.017
F.1.014
T.2.115
F.2.012
C.1.051.1
DADOINOXM3
H.4.001
A.5.001
F.1.013
C.1.042
F.1.008
C.1.041
F.2.018
8
Version 1.02
La Marzocco, S.r.l.
Firenze, Italia
GS/3
English
Parts Catalog
C.1.044SX (LEFT)
C.1.044DX (RIGHT)
C.1.047
C.1.048
F.1.009.SX
D.2.001
E.3.002
C.1.045
E.3.001
F.1.009.DX
F.1.012
I.1.025
A.2.013
D.3.001
C.1.038
C.1.046
C.1.043
CL/41
www.lamarzocco.com
Version 1.02
9
HANDMADE IN FLORENCE
Via Bolognese 68 Pian di San Bartolo, 50010 Firenze, Italy
La Marzocco, S.r.l.
Tel: +39.055.401.390 Fax: +39.055.401.349
Email: info@lamarzocco.com
www.lamarzocco.com