La Marzocco FB/80 User Manual
Contents
1. 4 2 qoom m m ar WEIGHT kg Fig 1 Model AV amp EE with 2 3 or 4 groups Legend 1 Main Switch 10 Hot Water dispense nozzle 2 Pressure Gauge Steam Water 11 Removable Drain Tray 3 Pressure Gauge Brew Water 12 Manual Brew Switch EE model 4 Brew Groups 13 Hot Water Switch EE model 5 Control Panel 6 Group 1 Keypad For additional information on electronics keypads 7 Digital Display and software programming please see the section 8 Steam Wand entitled Software Programming your Espresso 9 Steam Knob Machine www lamarzocco com V1 3 3 2 Definition of Available Models 2 General Description The machine is built in 2 3 and 4 group versions and is essentially composed of the following parts 1 2 3 4 5 Steam Boiler produces steam and hot water Coffee saturation boiler Brewing groups Exterior Cover Water pump 3 Description of the various parts Steam Boiler The Steam Boiler consists of a cylindrical tank of varying length according to the number of coffee groups which is made of AISI 300 series stainless steel Each unit is subjected to a hydraulic test at a pressure of 6 bar and has an operating pressure of 1 3 1 5 bar The following is a list of effective vol2. HANDMADE IN FLORENCE OPERATING MANUAL AVAILABLE 1 3 VER GB s FB 80 Table of Contents Chapters 1 General Warnings and Safety Specifications pag 2 2 Definition of Available Models pag 3 3 Installation pag 5 4 Operating the Espresso Machine and Preparing Coffee pag 7 5 Preparing Other Hot Drinks pag 9 6 Preventative Maintenance and Weekly Cleaning pag 10 7 De Commissioning and Demolition pag 11 8 History and Use of the La Marzocco Coffee Machines pag 12 www lamarzocco com 1 General Warnings and Safety Specifications 1 This operating manual is an integral and essential part of the product and must be supplied to users Users are asked to read the enclosed warnings and cautions carefully as they provide valuable information concerning safety during installation operation and maintenance This manual must be kept in a safe place and be available for consultation to new and experienced users alike 2 Ensure product s integrity by inspecting the packaging making sure it presents no signs of damage which might have affected the enclosed machine 3 Check the machine s integrity after having carefully removed the packaging Note In case of doubt do not go on any further and contact your dealer or retailer immediately They will send out specialized personnel authorized to perform service on the espresso machine 4 10 Packaging boxes plastic bags foam parts and whate
3. Connection Water Supply Connection www lamarzocco com Vr 3 5 3 Installation 1 Accessories Check the package to make sure that the following accessories are included e a number of 1 dose and 2 dose portafilters corresponding to the number of groups replacement 1 dose and 2 dose filters one of each 1 tamper 1 blind filter cleaning detergent for the groups 3 stainless steel braided hoses for water connections 1 5 mt of reinforced plastic tubing for drainage 1 hose clamp In order to proceed with installation it is necessary that the following are available a Pipes carrying drinking water with a 3 8 G BSP end connection 3 8 Compression for USA and Canada b Electrical Supply according to the specification of the espresso machine purchased e Single Three phase 220VAC 50 60 Hz electrical connection with ground protected socket and approved interlock switch e Single phase 200VAC 50 60 Hz electrical connection with ground protected socket and approved interlock switch e Three phase 380VAC 50 60 Hz electrical connection with neutral ground near the bench on which the machine is installed and terminating in a suitable protected fivepole socket equipped with an approved interlock switch c Waste water drain system NOTE The drinking water stopcock and the terminal switches for the electrical system need to be located in the most convenient position for the operator to access them easily and qu
4. and safety regulations being careful not to exceed the power and current ratings indicated on such adapters and extension cords 11 MARZO ER Cam Br SSE 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 damages caused by improper and or irrational use 12 13 14 15 16 17 18 Using any electrical device requires that certain fundamental rules be observed In particular do not touch the device with wet or humid hands and feet do not use the device while having no shoes on your feet do not use extension cords in bath or shower rooms do not unplug the device from the power outlet by pulling on the power supply cable do not expose the device to atmospheric agents rain sun etc do not allow children or untrained people to use this device Before carrying out any maintenance and or cleaning operations turn the main switch which is located on the front left of the machine to the 0 or OFF position and disconnect the machine from the electrical network by unplugging the cord or by switching off the relative circuit breaker For any cleaning operation follow exclusively the instructions contained in this manual In case the machine is operating in a faulty manner or breaks down disconnect it from the e
5. the espresso coffee machines being built today of almost any brand are of the continuous brewing type whose basic concept is to use the same water in the tubing directly to brew coffee by increasing its pressure mechanically and heating it in advance This has eliminated a particular problem encountered with older machines which made use of water from the boiler consisting of the overheating of the brewing groups which at times of heavy workload would give coffee a particularly unpleasant burned taste In any case a good cup of coffee is the result of 4 highly interdependent components to such extent that if only one of them is not quite in perfect harmony with the others the resulting cup of coffee will turn out not quite as pleasant in taste The 4 basic components are 1 coffee bean mix 2 water 3 coffee grinder 4 espresso machine 1 Coffee Mix Independent of the various qualities of coffee that make it up the type of toasting etc the freshness of the coffee beans and the way they are preserved is very important For coffee beans to be used on espresso machines it s a good rule of thumb to wait at least 8 10 days after toasting so that the beans may re absorb part of the humidity they lost during the toasting process itself and to use coffee beans within 3 4 days of opening their container 2 Water Within the limits imposed by the type supplied locally water should be free of bad savours and sof
6. the expansion valve Fig 3 in such a way that the pressure may never exceed 11 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 9 bar When the steam boiler reaches operating temperature the light on the Tea dispense button will light AV When the espresso machine is ready to operate all lights on the keypads will light 9eeoeoe AV 3 Installing the Portafilters Install the portafilter s by inserting them into the group and rotate the handle from left to right When the portafilters are inserted properly you can press any of brew buttons to start the EE Portafilter Basket Portafilter R Portafilter Ve Spout flow of water through the portafilter You should allow hot water to pass through the portafilter s for a few seconds each time in order to pre heat the portafilter Note It is important to leave the portafilters installed in the espresso machine when not in use The portafilter must remain heated for the brew process to function correctly 4 Brewing Coffee It is now possible to remove one of the portafilters to make an espresso beverage Place some ground coffee in the filter itself 1 dose approximately 6 g for the small filter 2 doses 2 approximately 10 14 g for the larger filter Press down on the ground coffee with the supplied tamper and install the filter holder up again to t
7. to the sealing washer and the group cover Repeat this procedure for all groups Once all air is removed from the coffee boiler reinstall the cup tray by following the removal instructions in reverse e Steam Boiler Turn the main switch item 1 in Fig 1 to position 1 or ON the automatic steam boiler level gauge will be switched on activating the auto fill solenoid valve and the motor pump This will fill the steam boiler to a predetermined level and will shut off when full Note It may happen that the air inside the steam boiler builds up pressure which may be detected through the pressure gauge item 2 fig 1 when the water is allowed to flow in this false pressure must be eliminated by opening the steam valves item 9 Fig 1 b Turning the Espresso Machine On Once you have completed these procedures check the display The message Coffee Boiler Filled should be displayed Press enter to confirm that the preceding procedures are complete The installation is now complete and the espresso machine should be heating to the operating temperatures www lamarzocco com 4 Operating the Espresso Machine and Preparing Coffee 2 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 14 15 bar This may happen anytime that the heating element is in the on condition In this case it is necessary to adjust
8. up the water used for brewing coffee which comes directly from the pipes and is pushed by the motor pump by running it through coils or cartridges small containers which are located in the boiler It follows that the latter must be quite large which entails a noticeable power consumption and the temperature may be controlled exclusively through a pressure switch a device which is specifically designed for controlling pressure and not temperature indeed the temperature changes every time the water steam ratio in the boiler changes and even more so when the latter is replenished with cold water It is quite obvious that the coils or cartridges which supply water to the brewing groups are very sensible to the above changes Furthermore the heat exchange between the main boiler and the coil varies greatly when as time goes on conduction of heat is reduced due to calcium deposits forming on the inside and outside of coils or cartridges In light of the above and to avoid wastage of electric energy required to keep large quantities of water at operating temperature pressure when only a small part is utilized our machines have been designed with 2 small boilers of the size which is most suited to the kind of services they have to offer One of them a STEAM GENERATOR is used to deliver steam and hot water for various drinks while the other a HOT WATER GENERATOR is used for the coffee The latter therefore produces hot water us
9. 0 220VAC 1 Phase 3 core cable with 2 5 4 6 10mm cross section or AWG 12 10 8 for UL version secured to espresso machine via a strain relief connector 220VAC 3 Phase 4 core cable with 4 mm cross section for versions with 1 2 3 and 4 groups secured to espresso machine via a strain relief connector 380 VAC 3 Phase 5 core cable with 2 5 6 mm cross section for versions with 1 2 3 and 4 groups secured to espresso machine via a strain relief connector b Water Pump Motor Power Cord This is the power supply for the water pump motor The internal electronics will switch the pump motor on when needed 3 core cable with 1 5 mm cross section or 3 core AWG 16 for UL version secured to espresso machine via a strain relief connector 3 Waste Water Drain Connection The espresso machine drain is to be connected by means of the included reinforced plastic tubing Connect one end of the reinforced plastic tubing to the drain hose connection on the left side of the espresso machine secure with included hose 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 WARNING U S A and Canada Only Do Not Connect To A Circuit Operating At More Than 150 V To Ground clamp Connect the other e
10. ater running through the brewing groups independently of the pressure and the level in the small steam boiler and therefore to optimize the water temperature itself in order to obtain the best possible coffee with whatever coffee mixes are available commercially 3 save on electrical energy by more than 30 in many cases when compared to other machines The GB 5 series machines are produced in the 2 3 and 4 group versions CONTROL SYSTEMS AND SAFETY DEVICES BUILT INTO LA MARZOCCO COFFEE MACHINES All models are equipped with automatic level regulator automatic pressure regulator automatic temperature regulator safety devices spring operated safety valve manual reset thermostats In all models coffee is brewed by opening a solenoid valve one for each group For the EE model the quantity of coffee brewed is regulated manually by the operator through a switch while in the AV model the quantity is regulated automatically in 4 different doses which may be programmed at will for each brewing group This last model is equipped with control panels one located above each group with 4 buttons which may be programmed in such a way that by pressing the 15 button you get 1 regular coffee pressing the 2 one you get one weak coffee tall pressing the 3 you get 2 regular coffees and by pressing the 4 one you get 2 weak coffees The fifth button which has a spiral sign allows continuous brewing o
11. e kindly ask that our clients to contribute to the protection of the environment and natural resources by delivering this equipment to the relevant recycling centers if they such centers are available in their country www lamarzocco com V1 3 11 8 History Use of the La Coffee Machines La Marzocco has been producing espresso coffee machines for use in caf s since 1927 In February of 1939 when machines being manufactured were exclusively of the vertical boiler type La Marzocco designed and built the first horizontal boiler machines for which it obtained a patent The Second World War brought an end to production of coffee machines and the fact that La Marzocco was a company of just the right size small medium allowed it to keep in touch directly with its clients and specialty caf s which meant being able to get more accurate feedback information concerning the needs of the final consumer and market trends which could then be put into practice Throughout time various machines have been designed and built of the type operating on Water Steam and on the principle of Hydrocompression and of the lever operated air and steam type semi automatic and automatic with mechanical and electrical actuators up until current production which consists of machines allowing continuous brewing operation PECULIAR CHARACTERISTICS OF LA MARZOCCO COFFEE MACHINES The great majority of
12. ed exclusively for brewing coffee which will flow out every time the specific group is activated thanks to the force of the cold water actually produced by the positive displacement pump The temperature of such water is controlled by an electronic temperature controller and temperature probe This system is extremely sensitive and has an accuracy of 0 2 electronically adjustable to 1 10 of a degree in order to adapt it to the optimal temperature depending on the type of coffee mix being used The brewing groups work like thermal flywheels They are welded directly to the coffee boiler and are thus an integral part of the boiler itself The boiler assembly is shaped in such a way that each group is located at a greater height than the boiler so that just like in the elements of a thermosiphon a natural circulation of hot water takes place within each group at the same temperature of the boiler and kept constant by the electronic temperature control system described previously The use of these small boilers completely independent from one La Marzocco S r l Firenze Italia 8 another the special manifold and fastening system of the groups to the boiler as well as the electronic temperature control have allowed us to 1 achieve an excellent thermal equilibrium between the brewing groups both at times of discontinuous operation and during peak times 2 be able to control the temperature of the w
13. g element supply circuit at 1 5 bar and close it at 1 3 bar The pressure is displayed by means of a pressure gauge with a scale of 0 to 2 bar Safety device based on an expansion type mechanical valve with counter acting spring adjusted to 1 8 bar Testing a hydraulic test at 4 5 bar performed on the ready to use small boilers at our factory Capacity and Power Ratings 1 2 groups 34 litres 1400 Watts 3 groups 5 0 litres 1600 or 1900 HI Power Watts 4 groups 2x3 4 litres 2 1400 Watts 2 C V 2groups 7 litres 2000 or 3000 HI Power Watts 3 groups 11 litres 3000 or 4000 HI Power Watts 4groups 14 5 litres 3000 3800 or 5000 HI Power Watts V1 3 13 MARZO JET SSS co SSE HANDMADE IN FLORENCE VIA BOLOGNESE 68 PIAN DI SAN BARTOLO 50010 FIRENZE ITALY T 39 055 401 390 39 055 401 349 E MAIL FLORENCE LAMARZOCCO COM LA MARZOCCO s r l WWW LAMARZOCCO COM
14. he bottom of the group and then press button to begin the brewing process Note Some barista believe it is important to press the brewing button prior to installing the portafilter to flush any remaining coffee oils and particles from the group Some also flush just after brewing to do the same Please experiment to make the best possible procedure for your coffee 2 v 4 Operating the Espresso Machine and Preparing Coffee Se 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 WARNING right Please consult the Software Programming Manual for Do not remove the portafilter when its relative group is brewing further instructions 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 2 General Notes for Coffee Preparation The potafilters 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
15. ickly 2 Water Supply Connection Connect the inlet of the water filter softener to the drinking water supply using one of the supplied stainless steel braided hoses Before connecting the water pump to the espresso machine flush the water supply line and the filtration system in order to eliminate any residual particles which could otherwise get stuck in taps or valves thus preventing them from working properly Connect the water supply connection of the espresso machine to the water pump outlet using one of the supplied stainless steel braided hoses Then connect the water pump inlet to the water filter softener outlet NOTE The water pump is differential pressure volumetric pump and has been designed to be used exclusively with cold water Make sure that water is always present while the WARNING HAZARDOUS VOLTAGE DISCONNECT FROM POWER SUPPLY BEFORE SERVICING pump is operating otherwise air can be introduced into the brew boiler causing an undesireable condition 3 Electrical Connections a Power Supply Cord CAUTION Before making any electrical connections make sure that the 2 strain relief connectors are firmly secured to the body of the machine in order to prevent inadvertent stress on the power cables This is the main power supply cable that provides power to the entire espresso machine There are different types of cable based upon the electrical requirements of the espresso machine purchased 20
16. lectrical network as described in the preceding point and close the water supply valve Do not attempt to repair it Contact a qualified and authorized professional to perform any repair Any repairs must be performed exclusively by the manufacturer or by an authorized centre using only original parts Non compliance with the above could compromise the safe operation of the machine You should plan to make use of an omnipolar connector during installation as required by local national and international electrical codes and regulations In order to avoid dangerous overheating problems it is recommended that the power supply cable be fully unfurled Do not obstruct air intake and exhaust grilles and in particular do not cover the cup warmer tray with cloths or other items The machine s power supply cable must not be replaced by users In case the power supply cable becomes damaged shut off the machine and disconnect the machine from the electctrical network by switching off the relative circuit breaker and close off the water supply to replace the power supply cord contact qualified professionals exclusively La Marzocco S r l Firenze Italia GB FB 80 2 Definition of Available Models This operating manual refers exclusively to the following models of our own manufacture GB 5 or FB 80 Model EE amp AV into 2 3 and 4 groups 1 Common Dimensions Weights and Features gt B
17. nd to a suitable waste water collection system In case such a system is not available drained liquids may be collected in a suitable bucket and any necessary drain pipe extensions shall be made using steel lined PVC tubing and suitable hose clamps La Marzocco S r l Firenze Italia GB s 8 1 Starting the Espresso Machine a Filling the Boilers with Water Once the installation procedures have been completed it is necessary to fill the boiler tanks with water Complete the following procedure to properly fill the boiler tanks e Coffee Boiler The water flows inside the coffee boiler directly as soon as the water system and water filter softener taps are opened 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 assemblies To remove the air from the boiler bleed the groups it will be necessary to remove the cup tray from the top of the machine First remove the cup tray grates from the top of the machine exposing the cup tray Remove the screws securing the cup tray and then remove Once removed the top of the groups will be exposed Loosen the bleed screws one at a time see picture above to allow air to escape until water flows from below the screw head Tighten the screw to stop the water from flowing Over tightening can cause damage
18. on and leave them fully submerged for about 30 minutes Rinse thoroughly with clean water and run hot water through one group several times with the filters in place Make one cup of coffee and discard in order to remove any unpleasant flavor 3 Cleaning the drain collector Remove the drain tray grill at least twice a week and clean pull out the water drain collector and clean it thoroughly Inspect and clean the drain well also and remove any leftover grounds 4 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 or imprinted parts in order not to damage them 5 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 10 V1 3 MARZO M gt AR 4 gt 6 Cleaning the Diffuser Screen Due to filter holder discharge operations subsequent to coffee brewing a certain amount of coffee grounds may slowly build Diffuser Screen Diffuser Screw up on and obstruct even partially the diffuser screen To clean it you must first remove it by unscrewing the diffuser screw Put 2 o
19. peration which can be interrupted by pressing the very same button again CONSTRUCTION DETAILS They consist essentially of 2 small boilers of which 1 Coffee Boiler hot water generator for brewing coffee 2 Steam Boiler steam generator for producing steam and hot water for making tea and other hot drinks 1 Description of the Coffee Boiler C C Composed of an AISI 300 series stainless steel tube Heating is accomplished through an immersion type plated heating element Operating temperature 95 C adjustable controlled automatically by an electronic temperature controller with an accuracy of 0 2 C Operating pressure of 9 bar developed mechanically by a special positive displacement pump which is activated automatically every time coffee is brewed Pressure is displayed through a pressure gauge with a scale from 0 to 15 bar Safety device based on an expansion type mechanical valve with counter acting spring adjusted to 12 bar Testing www lamarzocco com 8 History and Use of the La Marzocco Coffee Machines Hydraulic test at 18 bar performed on the ready to use small boilers at our factory 2 Description of the Steam Boiler C V Composed of AISI 300 series stainless steel tube Heating is accomplished through an immersion type plated heating element Operating pressure of 1 3 1 5 bar controlled automatically through a pressure switch or a temperature probe adjusted so as to open the heatin
20. r 3 teaspoons of cleaning detergent for coffee machines in about 1 2 litre of water inside heat resistant container and boil Place the diffuser screen s and diffuser screw s in the solution and leave them fully submerged for about 30 minutes Rinse thoroughly with clean water Install and run hot water through each group several times with the screen installed 7 Water Pump Whenever you are brewing coffee and you can adjust the pump pressure by turning the by pass screw below the plug located on the side to which the pump power supply is connected clockwise to increase and counter clockwise to reduce pressure Adjust pressure only when at least one group is brewing coffee Note When the heating element in the coffee boiler is energized the water will expand increasing the start up pressure Once the maximum pressure is reached the expansion safety valve should start working by discharging a few drops of water in order to prevent such pressure from exceeding 11 12 bar In case the pressure exceeds 12 bar you must adjust the expansion valve by unscrewing the cap slightly If this is not sufficient remove the valve and clear away any calcium deposits This remedy is valid also in case the valve remains open in the drain position i e the pressure cannot increase to 8 bar approx 8 Water Filter Softener Please see the documentation that accompanied the water filter softener for the proper operating and cleaning instr
21. r 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 www lamarzocco com V1 3 9 6 Preventative Maintenance and Weekly Cleaning CAUTION The machine must not be dipped in nor splashed with water in order to clean it For cleaning operations please follow the instructions listed below very carefully 1 Cleaning groups and drain wells Put a tablespoon of detergent powder for coffee machines into the blind filter supplied with the machine and tighten it onto the group you want to clean by using a normal filter holder WARNING Do not remove the portafilter when its 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 Activate the automating rinsing backflushing routine see the Software Programming Manual for more detailed instructions Rinse the group using a normal filter by running hot water through it several times 2 Cleaning filters and filter holders Put 2 or 3 teaspoons of detergent powder for coffee machines in about 1 2 a litre of water inside a heat resistant container and boil Dip filters and filter holders in the boiled soluti
22. tened using a suitable water softener in order to avoid calcium build up in any case hardness should not exceed 3 5 grains If water tastes like chlorine it is recommended that you use an actived carbon filter 3 Coffee Grinder It must allow you to grind coffee beans in a wide variety of granule sizes in the most uniform manner possible and once 12 V1 3 MARZO M OG gt AR 4 5 you have established the amount of ground coffee required for each cup the grinder must guarantee a constant amount from dose to dose It is best to grind coffee from time to time trying not to leave any ground coffee in the grinder overnight and during days off 4 Espresso Machine Among other things the espresso machine must guarantee the following qualities a the most appropriate water temperature for the type of coffee mix used constant in time so as to ensure that a good cup of coffee may be prepared any time whether you have to make several one after the other or one from time to time b a constant water pressure through the brewing group and the coffee mix As far as the quality b is concerned it is usually obtained by means of the same system in all the continuous brewing type machines that is by using a positive displacement motor pump while quality a can be obtained with various systems The great majority of manufacturers uses systems which are very similar to one another The underlying principle is to heat
23. the water flow It is important to remember that coffee left over in the filters must be removed only when you need to prepare another cup and only at that time should you place a new dose of ground coffee in the filter The size of the coffee granules is extremely important in preparing a good cup of coffee other than the type of coffee mix 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 2 fluid oz of espresso in approximately 25 seconds 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 Manual for detailed instructions 8 V1 3 La Marzocco S r l Firenze Italia GB 3 F P SO 5 Preparing Other Hot Drinks 1 Steaming Milk or Other Liquids Dip one of the 2 steam wands part 8 fig 1 which are connected to the steam valve into the liquid to be heated turn the steam knob part 9 fig 1 gradually until steam comes out at the end of the wand The steam will transfer heat to the liquid raising i
24. ts temperature up to boiling point 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 e Place the container half full of milk under the steam wand open the steam valve and bring the temperature of the milk almost up to 149 158 F 65 70 C e Lower 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 You can then pour this milk into a cup containing warm espresso and you will end up with a fresh cup of cappuccino In order to prevent the heated liquid from being sucked back into the steam boiler it is recommended that you purge the steam valve and steam wand by opening the 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 2 Preparing Tea and Other hot Drinks You may dispense hot water by using the fixed nozzle item 10 fig 1 To dispense hot water press the tea water button on the right most group AV 8 This button commands the hot wate
25. uctions La Marzocco S r l Firenze Italia GB 2 7 F b 80 7 De Commissioning and Demolition 1 De Commissioning and Demolition Start by setting the main switch to the 0 or OFF position Disconnecting from the power outlet Disconnect the espresso machine from the electrical network by switching off the associated circuit breaker or circuit protection device Remove the power supply cord from the power connection Remove the Pump Motor Power Cord from the water pump motor Disconnecting from the water system Shut off the water supply by closing the specific tap located upstream of the water filter softener inlet Disconnect the water pipe at the water filter softener inlet Remove the hose connecting the espresso machine to the water pump Remove the reinforced plastic tubing on the drain connection At this point the machine may be removed from the bar being very careful not to drop it or squash your fingers The machine is made out of various materials and therefore if you do not intend to put it back in service it must be taken to a special disposal company which will select the materials which can be recycled and discard the others Current regulations make it illegal to discard such machine by leaving it on public grounds or on any private property Recycling notice Warning for the protection of the environment Old electrical equipment is made of valuable materials it is not normal domestic waste W
26. umes and power ratings according to the number of groups installed 2 groups 7 0 liters 2000 or 3000 Watts 3 groups 11 liters 3000 or 4000 Watts 4 groups 14 5 liters 3000 3800 or 5000 Watts Covers are installed at either end of the cylindrical tank and on one of them there is a housing for the water heating element which allows the steam boiler to operating pressure within approximate 25 minutes Operating pressure is maintained by a pressure switch or a temperature probe The steam boiler has various fittings used for safety devices for supplying hot water and steam and for the heating element Coffee Boiler The Coffee Boiler consists of a cylindrical tank of varying length according to the number of coffee groups which is made of AISI 300 series stainless steel Each unit is subjected to a hydraulic test at a pressure of 18 bar and has an operating pressure of 9 bar The following table is a list of effective volumes and power ratings according to the number of groups installed 2 groups 3 4 liters 1400 Watts 3 groups 5 0 liters 1600 or 1900 Watts 4 groups 3 4 3 4 liters 1400 1400 Watts 2 Boilers Installed Covers are installed at either end of the cylindrical tank and on one of them there is a housing for the water heating elements The temperature of the coffee boiler is maintained by an electronic temperature controller PID capable with an accuracy of 0 2 C The brewing groups are installed on the boiler Bre
27. ver else must not be left around within easy reach of children due to the potential danger it represents nor be discarded in the environment Check to see that data on the rating plate corresponds to those of the main electrical supply which the machine will be hooked up to 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 Incorrect installation may cause for injury damages to people animals or objects for which the manufacturer shall not be held responsible 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 Furthermore you must ensure that the capacity of the available electrical system is suitable for the maximum power consumption indicated on the espresso machine 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
28. wing Groups They consist of a precision casting made of stainless steel The brewing group accepts the portafilter used to hold the ground coffee the espresso flows through the brewing group through the portafilter basket through the portafilter spout and into the cup s after the brewing button has been pressed MARZO M gt AR Y 5 e Exterior Cover It consists of a stainless sheet steel body for the GB 5 and painted plastic for FB 80 The structure has been the object of specific studies to provide good aesthetics to lower ergonometric costs for the operator and to reduce the chance of damage to a minimum e Water Pump The water pump is a differential pressure positive displacement type installed on the water supply tubing and is set up to operate anytime the coffee groups are activated and through an electric level gauge whenever the steam boiler needs to be replenished 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 3 C Steam Boiler 260 F 127 C La Marzocco S r l Firenze Italia 8 3 Installation E4 Y 4 Yi Power Electrical Supply Supply Cord Connection Waste Drain Filtration Softener Water Pump and Motor Expansion Valve Drain Grate Drain Hose
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