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La Marzocco GS/3 Operating Manual
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La Marzocco GS/3 Operating Manual

La Marzocco GS/3 Operating Manual

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Download this manual See also: Programming Manual, Owner's Manual
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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.

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Summary of Contents for La Marzocco GS/3

  • Page 1 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.

  • Page 2: Table Of Contents

    Operating Manual V1.3 - 09/2016 MAN.2.1.01 Chapters page 3 1. General Information La Marzocco S.r.l. page 5 2. Accessories Via La Torre 14/H Località La Torre page 6 50038 Scarperia e San Piero 3. Machina Description (Firenze) - ITALIA page 7 4.

  • Page 3: General Information

    1. General Information Safety Instructions 5) Furthermore, you must ensure that WARNING 1) Check to see that data on the rating the capacity of the available electrical THIS MACHINE IS FOR PROFESSIONAL USE ONLY plate corresponds to those of the main system is suitable for the maximum power AND SHOULD BE INSTALLED IN LOCATIONS WHERE electrical supply to which the machine will...
  • Page 4 8) Using any electrical device requires that 10) If the machine is operating in a faulty 13) The machine’s power supply cable certain fundamental rules be observed. In manner or stops working, disconnect it must not be replaced by users. In case the particular: from the electrical network (as described power supply cable becomes damaged,...

  • Page 5: Accessories

    2. Accessories Check the package to make sure that the following accessories are included in the packaging: QTY. PART NO. DESCRIPTION L115/C F.3.029 F.3.028.01 F.3.027.01 F.3.026.01 UT003 L111/2NAC PORTAFILTER ASSEMBLY, DOUBLE SPOUT, S/STEEL V067 L111/1AC PORTAFILTER ASSEMBLY, SINGLE SPOUT, S/STEEL L120/2A L115/C PORTAFILTER BASKET,...

  • Page 6: Machine Description

    3. Machine Description group head group cover (AV model) cup tray paddle group and handle (MP model) pressure gauge main power switch (steam boiler) pressure gauge (coffee boiler) steam wand steam activation lever display hot water dispensing keypad spout temperature adjustment drain box knob for hot water Figure 2 - Machine Description...

  • Page 7: Installation

    M a r z o c c o Connect the espresso machine to a power replace the drain tray. (See GS/3 Software machines will be supply that is rated in accordance with the and Installation Guide for additional...
  • Page 8 Coffee Boiler: The water flows inside the finished, before proceeding with brewing coffee boiler directly when the water pump coffee, hot water and steam, please follow is activated. When the GS/3 is turned on these steps: Bleed Screw the electronics will activate the water •...
  • Page 9 exceeds 12 bar then it will NOTE: As the steam boiler reaches operating be necessary to adjust the expansion valve temperature you may hear air and steam escaping in such a manner that the pressure never from the boiler. This is a normal sound. As the water exceed 12 bar.
  • Page 10 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.
  • Page 11 7) Adjusting Water Pump Pressure. 3. Adjust the water pump pressure to the NOTE: The water pump pressure should be The water pump is factory set at 9 bar desired measurement. adjusted when the machine is operating pressure. If it becomes necessary to 4.

  • Page 12: Operation

    Press down on the ground coffee with the supplied tamper and install the portafilter FILTER on the GS/3. On AV model press a brew BASKET button to begin the brewing process, or move the paddle handle from right to left to begin brewing on MP model (see Fig.2).
  • Page 13 3. Dispensing Steam. NOTE: It is important to have a sufficient In order to allow for any condensed water volume of liquid in the steaming pitcher. in the wand to be released ALWAYS allow Therefore if you intend to steam small some steam to be discharged by turning on amounts of milk it is necessary to use a the valve before inserting the steam wand...

  • Page 14: Key Features

    6. Key Features 1. Controlling the Brew Process Using Volumetric 3. Quick Keys. 5. General Notes for Coffee Preparation. The Programming. The GS/3 has 4 Quick Keys to allow the portafilters must remain heated since This espresso machine allows user to gain quick and easy access to...
  • Page 15 7. IMPORTANT To improve the flavor profile • Turn on the hot water valve for the time of the espresso, the temperature of the necessary to allow 1 liter of water to be water in the coffee boiler, and therefore brewed.

  • Page 16: Preventative Maintenance And Cleaning

    7. Preventative Maintenance and Cleaning Cleaning (Daily) portafilter into the group you want to clean. heat-resistant container and heat. 1. Cleaning the Diffuser Screen. • Press the brewing button for said group, • If using stainless steel portafilters with During discharge operation as if you were making a regular cup of...
  • Page 17 a soft cloth. Do not spray the keypad or Drain the Steam Boiler: Turn OFF the machine. WARNING display with any liquid. Clean only with a Remove the left side panel assembly. THE EXPANSION VALVE CAN DISCHARGE WATER AS damp soft cloth. Locate the ball valve on the bottom left HOT AS 200°F / 93°C.

  • Page 18: Maintenance And Periodic Cleaning Operations

    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.