85 SE - Coffee machine La San Marco - Free user manual and instructions

USER MANUAL 85 SE La San Marco

7. Instructions for Authorized Installer

IMPORTANT Before using the machine, carefully read all of the instructions contained in this machine.

1.1 Using the manual

This manual contains all information required for the installation, use and maintenance of the cof- fee machine. This manual is an integral part of the machine; always keep it intact together with the appliance.

• Do not operate the machine or carry out routine maintenance before reading this manual.

• This machine is designed and built for serving espresso coffee, hot water (for the preparation of bev- erages and infusions) and steam (used to heat liquids). The use of the machine for any other than its intended purposes is considered to be improper and unauthorized. The manufacturer declines any liabil- ity for damage resulting from the improper use of the machine.

• Thismachinemustbeinstalledonlyinplaceswhereitsuseanditsmaintenancearemadebytrained personnel.

• Thedevicemustbeconnectedtothelocalwatermainsusingaflexiblepipefittingincompliancewith national standards, if these are applicable. Furthermore, the equipment must be installed with suitable “refluxprotection”inordertocomplywiththeapplicablenationalandlocalregulations.

• Donotinstalltheespressocoffeemachineinplaceswherecleaningislikelytobecarriedoutwithjets of water. Do not immerge the unit in water to clean it.

• Ifthe power cord isdamaged its replacement should beperformedonly by authorized andqualified personnel.

• Theusermustbearesponsibleadult,whoisexpectedtocomplywithlocalsafetyrulesandaccepted common sense procedures. For a proper and safe use of the machine, the operator must always comply with applicable accident prevention and other work safety and health regulations.

• Thisapplianceisnotdesignedforusebypersons(includingchildren)withlimitedphysical,sensoryor mentalabilities,orlackinginexperienceandknowledge,unlesstheyarecontrolledandtaughttousethe appliance by a person responsible for their safety. Children must be supervised to make sure they do not play with the appliance.

• Theuseoftheapplianceandtheroutinemaintenanceandcleaningoperationsmayonlybecarriedout by authorized personnel, under the responsibility of the client.

• Themachinemustneverbeswitchedonbeforeconnectingittothewatersupply.Theusermustmake sure that the water supply valve remains open when the machine is switched on. Place only empty cups in the cup holding shelf.

• Themachineinoperationmustneverbecovered,astheremustbeaproperaircirculationaroundit.

• Themachinemustneverbeusedwiththefixedand/ormobileguardsremovedorwiththesafetydevices cut off. The safety devices must absolutely never be removed or tampered with. The panels covering the machine must not be removed, as the machine contains live parts (there is the risk of electric shock).

• Thehotpartsofthemachine(servingunits,boiler,piping,etc.)cancauseseriousburnsduetoaccidental contact with the skin. It is therefore necessary to use safety gloves, aprons, etc., during maintenance or repair operations.

• When cleaningthemachine, avoidusingproducts suchasalcohol, petrolorsolvents ingeneral;use water or neutral detergents.

• Tocleanthemachineframe,itissufficienttouseamoistclothorasponge.Avoidusingabrasiveprod- ucts that could damage the elements on the body. To clean the coffee serving units, the filter-holding cups, the grills and the trays, follow the instructions of the Routine Maintenance chapter.24 english

• For better product quality, replace the hot water in the boiler and circulate the water in the pipes upon first turningthemachineoninthemorning.Ifthemachineisexpectedtoremainidleforafewhoursduringtheday, we also recommend changing the water by running it through the hot water tap and the coffee serving units.

• Strictcompliancewiththeroutinemaintenanceinstructionsofthismanualisrequired for a safe and efficient operation of the appliance.

• Incaseofmalfunctionsorfailureofanymachinecomponent,contacttheauthorizedservicecentreand request original La San Marco spare parts. The use of any other than original spare parts voids the con- formity certifications and the warranty that accompany the machine.

• Any changes carried out on the machine and/or failure to carry out the scheduled maintenance will release the Manufacturer from any liability for any resulting damages and voids the conformity declaration and the warranty.

• Unauthorisedoperationsoroperationswhosemethodsofexecutionarenotexactlyclearorunauthorised interventions on the machine are strictly prohibited; contact the manufacturer for any information, spare parts or accessories that you may need.

• Shouldtheappliancebemovedoutdoorsortopremiseswherethetemperaturemightdropbelow0°C,it isvitalthattheexchangerscircuitbeemptied,cuttingoffthewatersupplytotheapplianceanddraining all water from the units until they only emit steam. Omitting to perform this procedure could lead to the exchangersbreaking,duetothewaterinsidethemfreezing.

• For a proper disposal of the machine when it is to be discarded, contact the supplier or the authorized firms specialized in the collection and disposal of solid urban waste. Do not discard the appliance in the environment.

• LaSanMarcoS.p.A.reservestherighttomakeanytechnicalchangesonthemachineconsiderednec- essary without advance notice.

1.3 Starting the coffee machine

Ambient temperature: 5 ÷ 45°C (drain the water system in case of frost) Mains water pressure: 80 ÷ 800 kPa (0.8 ÷ 8.0 bar) Water hardness: less than 5° fH Noise level emitted by the machine: The weighted sound pressure level A is below 70 db(A), under normal conditions of use of the machine.25 ENGLISH

Mod. 85-E3. Diagram of water feed system 1 Main switch 2 Pilot light 3 Steam spout 4 Cup warmer on/off switch 5 Steam valve lever 6 Button for serving single strong coffee 7 Button for serving single weak coffee 8 Button for serving double strong coffee 9 Button for serving double weak coffee 10 Continuous serving button 11 Hot water valve lever 12 Espresso coffee serving unit 13 Filter holding cup with handle 14 Manual boiler water filling lever 15 Hot water spout 16 Gas burner ignition button 17 Gas burner safety button 18 Two-scale pressure gauge 19 Coffee serving button 20 Visual level indicator 21 Boiler water drain tap 22 Automatic level tap 23 Push button valve with check valve 24 Automatic level tap 25 Check and safety valve 26 Automatic level solenoid 27 Pressure switch 28 Pressure switch setting screw 29 Grounds collecting tray 30 Drain pipe 31 Water softener 32 Water softener feeding pipe 33 Mains water supply tap 34 Mains water supply pipe 35 Pump feeding pipe 36 Machine feeding pipe 37 Pump (external model) 38 Pump (internal model) Key to illustrations:

• Thecoffeemachineisdeliveredinasuitablecardboardandstyrofoampacking. The packing contains the machine and its accessories, the user manual and the confor- mity declaration. After opening the packing, check the proper condition of the coffee machine and its components. In case of doubt, do not use the appliance, and contact La San Marco S.p.A. The packing must be disposed of at the proper waste collecting centres, in compliance with local laws. Do not discard in the environment. The packing elements (carton, styrofoam, nylon, staples, etc.) can be a source of hazards. Keep out of reach of children.

• The machine should be placed on a perfectly horizontal plane sufficiently sturdy to support the weight of the machine, with a sufficient clearance around it to dissipate the heat generated during its operation.28 english

5.1 Equipment in machine kit

The machine packing contains the equipment kit, which includes the following items: - filter cups with filter restraint ring - filters for filter cups (single and double doses) - blind filter for filter cup - spouts for filter cups (single and double doses) - press for ground coffee - braided 900 mm stainless-steel tube for water connection (water supply - water softener) - rubber drain hose with steel coil for water drain - 3/8" nipples for hose connection to water supply tube - cleaning brush for serving units - pump suction filter (on request) - braided 600 mm stainless-steel tube for water connection (pump inflow - water softener) - optional only for external pump - braided 1600 mm stainless-steel tube for water connection (pump outflow - coffee machine) - optional only for external pump;

5.2 Prearrangement of water supply

FEEDING LINE Bring the water feeding tube (of at least 3/8" diameter) up to the machine and install an on-off valve (prefer- ably of 3/8" ball type) that allows a rapid opening and closing operation. The appliance should be connected to the water mains using the tube supplied with it. Do not connect the appliance with used tubes. DRAIN LINE Provide an inspectable drainage pit on the floor connected with the sink drainage line, suitable for receiving the machine gravity drainage tube. The drain tube must be positioned so that the water flows out freely, without possibility for the pipe to clog up during the operation.

5.3 Water softener (optional)

The water softener for the mains water can be manual or automatic, depending on customer's request. Before connecting the water softener to the coffee machine, the resins contained in it should be washed off as described in the user's manual supplied with the appliance. Note: The water softener is considered an essential device to guarantee a proper operation of the espresso coffee machine. A water softening system should be provided in order to guarantee the efficiency, performance and duration of the components in the machine.

5.4 Installation of the water system

1) Use the braided 900 mm stainless-steel tube 32 to connect the on-off valve of the water supply to the

water softener inflow valve (figure 1).

2) Using the rubber-braided 35 stainless-steel tube (2500 mm long), connect the internal pump intake with

the water softener valve (figure 2).

1) Use the braided 900 mm stainless-steel tube 32 to connect the water supply on-off valve to the water

softener inflow valve 1 (figure 3).

2) Using the rubber-braided stainless-steel tube 35 (600 mm long), connect the pump intake with the water

softener valve (figures 3-4).

3) Using the rubber-braided stainless-steel tube 36 (1600 mm long), connect the pump outflow with the

nipple 5 of the water system on the machine (figures 4-5).

Connect the drainage tube to the grounds collecting tray and to the water drainage system.

5.6 Electrical connections

Instructions for a proper electrical connection of the espresso coffee machine:

• Beforeconnectingthemachinetothepowersupply,makesurethatthedataonthe rating tag correspond to the available power supply. The tag is located on the left side of the machine (and can be accessed by removing the lower tray).

• Thepowerconnectionmustbecarriedoutaccordingtoapplicablerequirements.

• Thepowersystemprearrangedbythecustomermustcomplywiththecurrentappli- cable laws and the power socket must be provided with an efficient grounding system. La San Marco S.p.A. declines any liability if the applicable prescriptions of the law are notcompliedwith.Animproperinstallationcancauseinjuryordamageforwhichthe manufacturer cannot be held liable.

• Ifitisnecessarytouseadapters,multipleplugsandextensions,onlyproductsmeeting applicable safety standards must be used.

• Toavoidanyoverheatingofthepowercable,unwinditcompletely.

• Fortheelectricalconnection,itisnecessarytoinstallanomnipolarmainswitchupstre- am of the power supply; this switch should be rated according to the electrical cha- racteristics (power and voltage) shown on the rating tag. The omnipolar switch must disconnect the power supply with a contact gap of at least 3 mm.30 english Connect the power cable to the main switch as follows: Only fOR 85 1 MODels

The power absorbed by the heating elements can be reduced to 2/3 by eliminat- ing one of the two BLACK cables.

The machine is provided with an equipotential clamp placed under the tray and the bottom support cup grid. The terminal is identied by the equipotential symbol reported here on the side. Connect only cables of 2.5 mm to 6 mm with ring lugs for screw M8 The connection to the equipotential clamp must be performed by LA SAN MARCO SPA authori- zed qualied personnel. To make the connection remove the bottom tray. On the left side of the frame, indicated by the equipotential symbol, there is the screw-clamp to be used to connect a cable of 2.5 mm to 6 mm with ring lugs for screw M8.31 ENGLISH

6. Operating instructions

6.1 Filling the boiler

Checking the position of the taps in the water system a) Remove the coffee ground collection tray with grille. Now, check for the following configuration:

• Tapontheautomaticlevelcontrolvalve22:open b) Install the coffee ground collection tray with grille c) Open the main water fill tap 33 d) Open a steam delivery lever 5 to allow air to escape from the system as the boiler is filled. Mod. 85 - Practical - S/E e) Move the main switch 1 to position 1 to fill the boiler automatically without activating the heating ele- ments. When the water reaches the probe, the “MAx” led will light up. When the boiler is full, turn the main switch to working position 2. Mod. 85 - S/E - 2 - 3 - 4 f) Make sure that the main switch 1 is in position “zero”. g) Press and hold down the button 14 until the sight glass 20 is 3/4 full.

6.2 Calibration of pump pressure

a) Once the boiler is filled, turn the main switch to position 2 (the heating elements start to heat the water). b) Press the continuous-feeding push button 19 for the manual serving machines or the push button 10 for the electronic machines with automatic serving, so that the water flows out of the unit corresponding to the pressed button. c) Read the water pressure value on the lower part of the pressure gauge 18. The optimum pressure is 9 bar. The pressure is adjusted to the desired value by oper- ating on the pump screw: the pressure is increased by turning clockwise; it is decreased by turning counter- clockwise. As shown in the following figure, there are three different cases for adjusting this screw, depend- ing on the pump installed on the machine: - adjust only the screw - adjust the screw and lock it with the lock nut - unscrew the cap nut and adjust the screw.

6.3 Calibration of water pressure in the boiler

a) After having filled the boiler to the proper level, turn the main switch to position 2 (the heating elements will start to heat the water). b) Open the lever-controlled steam valve 5 to vent the air during the heating phase. Close the valve as soon as the steam phase is reached. The steam pressure in the boiler can be read on the upper scale of the pressure gauge 18 from 0 to 3 bar. The pressure rises to the calibration value of the pressure switch 27 in the range from 0.9 to 1.1 bar. To vary the steam pressure, turn the screw 28 on the pressure switch

27. The pressure is decreased by turning the screw clockwise and it is increased by turning the screw

counterclockwise. The screw is adjusted by means of a screwdriver inserted into the hole on the lid of the pressure switch. The pressure switch can be reached from the upper tray and grill.

6.4 Heating the water in the boiler

a) Rotate the main switch to position 2. b) Hold down a steam delivery lever 5 to allow air to escape from the system as the machine heats up. Release the lever as soon as steam escapes from the delivery pipe. Boiler pressure is indicated on the 0-to-3-bar scale on the pressure gauge 18 (suggested value: 0.9-1.2 bar). PUMP SCREW32 ENGLISH

6.5 Electric cup warmer (Optional)

The on/off button 4 is used to heat the cup holding shelf; it can be switched on and off at will.

This function is used to deliver steam from the boiler to heat liquids, or to foam milk for cappuccinos. Lower or raise the lever 5 to obtain the maximum flow of steam. Move the lever sideways to the left of right to obtain a reduced steam flow.

6.7 Hot water delivery

The lever-operated tap 11 is used to deliver hot water from the boiler for making tea, camomile herb tea, etc. This lever operates in the same way as the steam delivery lever.

6.8 Preparation of ground coffee

Make sure that the filter with the desired capacity has been installed in the filter holder. After the coffee has been loaded and pressed into the filter, the coffee level in the filter must just touch the spray head on the brewing unit. To check for correct coffee level, install the full filter holder onto the brewing unit and then remo- ve the holder. Now, look at the surface of the coffee: if the level is correct, the coffee will contain the imprint of the central mounting screw on the spray head of the brewing unit.

Semiautomatic models: 85 - S Once the filter holder has been installed onto the machine, simply press the switch 19 to actuate the pump and solenoid valve. When the coffee in the cup has reached the desired level, move the switch back to its original position to terminate brewing. Automatic models: 85 - E Once the filter holder has been installed onto the machine, press one of the five brewing buttons. The first two buttons 6 and 7 are used to select the two pre-programmed single portions of coffee. The second two buttons 8 and 9 are used to select the two pre-programmed double portions of coffee. The fifth button 10 immediately shuts down brewing if pressed during a coffee brewing cycle. Button 10 can also be used to brew the desired quantity of coffee manually: press this button to start brewing, and presse the button a second time to stop brewing when the desired quantity of coffee has been obtained.

6.10 Draining the boiler

If the boiler must be emptied, shut off the power to the machine by moving the main switch 1 to the “zero” position. On gas-fired machines, extinguish the flame by closing the gas feed valve. Open the drain tap 21 until the boiler has been completely drained. Important: be sure to close the tap before refilling the boiler.

6.11 Automatic operation - programming the coffee brewing cycles

Automatic models: 85 - E A. Entering the programming mode Set the main switch 1 on the machine to position “zero” (machine switched off). Hold down the fifth button 10 on the first brewing unit. Now, rotate the main switch 1 to position 1 (machine switched on). After a few seconds, release the button 10. The indicator led for the button will now begin to flash, as will the same led on all the other brewing units. The machine is now ready for programming. B. Programming To program the four portions on brewing unit I, proceed as follows: place the single-portion filter into the single-portion filter holder. Use the coffee dispenser to dispense a single portion of coffee into the filter. Mount the filter holder onto brewing unit I. Place an espresso cup under the spout on the filter holder. Press the first button 6 whose portion is to be programmed. When the coffee in the cup reaches the desired level, press the fifth button 10 to stop brewing. Follow the same procedure to program the other portions on each group. Once the four portions on brew- ing unit I have been programmed as desired, the relative data can be transferred to the other brewing units by pressing the fifth button 10 on each unit. When each button 10 is pressed, the indicator led for the button will stop flashing and remain steadily lit. This shows that the data on brewing unit I has been transferred successfully.33 ENGLISH C. Exitingfromtheprogrammingmode After you have finished programming the machine, press the button 10 (with flashing led) on brewing unit I and all the leds will turn off. The programmed quantity of coffee will now be delivered when an automatic brewing button is pressed.

A flashing Led on the first button of pushbutton array indicates a malfunction on the flow meter. A flashing Led on the second button of all the pushbutton arrays indicates a malfunction on the automatic boiler refill system (jammed solenoid valve, insufficient water from the main water system, etc.). After 1’30”, the pump motor will shut down. Note: If the machine shuts down as described above, call your local service technician.

• Donotusewatersprays,steamorsimilarcleaningmethods.Beforecleaningormainte- nanceoperations,DISCONNECTTHECABLEIFPOSSIBLE;OTHERWISE,SHUTOFF THEOMNIPOLARMASTERSWITCHINSTALLEDAHEADOFTHEMACHINE.

• Ifpowercableisdamaged,itmustbereplacedwiththespeciallyprepared,original equipment replacement part which conforms to safety regulations.

• Specialmaintenance,partsreplacement,long-termsoutdownanddisplantingopera- tions must be performed by LA SAN MARCO service personnel.

7. Instructions for Authorized Installer Gas fired

Boiler (Optional) Read the instructions before installing and using the appliance. ThisappliancecanonlybeinstalledandusedinpermanentlyventilatedplacesaccordingtoUNI- CIG7129andUNI-CIG7131Standards.

7.1 Connection to gas supply

Position the appliance as described in the Use and Maintenance Manual, remove the control panel as de- scribed in the same handbook, and connect the appliance to the gas supply mains, or LPG bottle (G30/G31), using rigid metal pipes or flexible metal tubes according to UNI-CIG 9891 Standards. Check that the appliance is prearranged for the type of gas actually being used; the corresponding setting is shown on the settings tag. If the appliance is prearranged for a different type of gas, change the arrangement as described in the para- graph “Changing the calibration”. The gas infeed, consisting of an on-off valve (51), includes a G 1/8” threaded connection (thread is not gas- tight) according to ISO 228-1 Standard. If using rigid metal pipes for connection to the gas supply, place an appropriate fitting between the valve and the rigid metal pipe, which should be provided with a G 1/8” female thread (thread is not gas-tight) according to ISO 228-1 Standard. If using flexible metal tubes for connection to the gas supply, interpose an appropriate G 1/2” female nipple (gas-tight thread) according to ISO 7-1 Standard and a G 1/2” male nipple (thread is not gas-tight) according to ISO 228-1 Standard; interpose a suitable gas-tight gasket. When the connection is completed, open the gas flow upstream of the appliance and, using a soapy solution (never a free flame), check the perfect tightness of the connection.

7.2 Venting the combustion fumes

In relation to the venting of the combustion fumes, the appliance is of Type A1: i.e., it draws in the air required for combustion from the room and discharges the fumes in the same environment. Place particular attention to the volume of the room where the appliance is to be installed: this should be at least 12 m

ENGLISH If the room has a smaller volume, it will be necessary to install the appliance directly under a suction hood, and also to provide a combustion air intake with a free-flow cross section of al least 100 cm

Press and turn the gas valve knob (51) counterclockwise to the position of the flame symbol, as shown in Fig. B. While holding the knob pressed, push a few times the burner ignition button, marked with the star symbol (53) to ignite the burner (piezoelectric ignition). When the flame is lit, check through the relative hole (54), while keeping the gas knob pressed for 5-10 secon- ds. After this period, if the flame does not remain lit, repeat the ignition operation again.

7.4 Changing the calibration

The appliance is prearranged to operate with the gas indicated in the relative settings tag attached to the appliance. The information regarding the air setting, injector, rated and reduced heat flow are shown in Tables 1 and 2. The data that correspond with each model are indicated by the next-to-last character of the code for the relative model. For example, the model code shown on the tag for the gas part characteristic 85-E-3-G shows number 3 in the next-to-last digit. In this case, refer to the data shown in Tables 1 and 2, respectively, in the column headed “3 Units”. If you wish to change the calibration of the appliance, proceed as follows: Unscrew the primary air adjusting ring nut (55 - Fig. C) to expose the nozzle (56). Using the relative wrench, unscrew the nozzle (56) and replace it with the proper one indicated in Table 2, checking that the diameter marked on the same nozzle corresponds to the right diameter. 1° GRUPPO

2° GRUPPO Table 1 - Adjusting the primary air (Fig. C) Gas 2 Units 3 Units 4 Units GPL L = 8 mm L = 10 mm L = 12 mm (G30/G31) Nat. gas L = 4 mm L = 4 mm L = 4 mm (G20) Qn = Rated heat flow Qnr = Reduced rated heat flow Table 2 - Nozzle diameters in 100/mm Gas 2 Units 3 Units 4 Units GPL 40 55 65 (G30/G31) Nat. gas 60X 81X 90X (G20) Qn (kW) 0,75 1,45 1,9 Qnr (kW) N.A. 1,0 1,3 Screw on the new nozzle (56), and position the primary air adjusting ring nut (55 - Fig. C) according to the indications of Table 1, using a gauge or equivalent instrument to set the distance “L”, and tighten the screw provided to fasten the nozzle. Turn the main switch (1) to position 1, so as to connect a single heating element (50% of the boiler’s electric power for single-phase heating element with 2 elements and 1/3 of power for heating elements with 3 ele- ments with three-phase connection), and ignite the burner as in the procedure described above. When the water contained in the boiler reaches the preset temperature, the gas flow regulator will automatically decre- ase the flow to the value corresponding to the reduced rated heat flow. At this point, turn the flow regulation screw (58) so as to have a steady flame licking the sensitive thermocou- ple element (52), and turn the screw (57) to obtain the maximum desired pressure value in the boiler.35 ENGLISH After having verified the proper operation, replace the settings tag on the appliance with the one for the new type of gas that is provided with the standard kit containing the newly installed gas nozzle. Safety devices on appliance (manually reset). The appliance is provided with two safety devices that shut off the gas flow if the flame accidentally goes out.

1 - Termocouple (52): The thermocouple operates on the valve (51), whose probe (52) must be licked by

the flame from the burner (50). If the probe is not enveloped by the flame, the gas flow will be automa- tically shut off.

2 - Thermostat (59): The thermostat, placed in contact with the boiler, operates on the valve (51); when the

thermostat sensor on the boiler reads 140˚C, the gas flow will be automatically shut off. The burner can be re-ignited with the procedure described above only after the boiler body has cooled to 110˚C. Following the activation of one of the two safety devices, try re-igniting the burner with the procedure already described. If the malfunction persists, and the burner consequently continues to go off, contact the nearest authorized Service outlet, which will provide to eliminate the cause of the malfunction.

• Donotuseharshorharmfuldetergentssuchasalcohol,petrolorsolventstocleanthe coffee machine; use water and neutral detergents. Note: The daily cleaning operations must be carried out in order to maintain the efciency of the machine and to guarantee the safety of the user and of the persons around it.

8.1 Cleaning the serving units and the lter holder

1) Detach the lter cup from the serving unit, remove the coffee grounds and replace the lter present with

the blind lter (without holes) provided with the machine. Note: Thelterisinsertedintothecupbypressure;toremoveit,itissufcienttoforceitonthesidesandthenex- tract it. Do not remove the elastic ring on the inside of the lter holder.

2) Using the brush, clean the seat in the unit in which the lter cup is inserted.

3) Insert the cup in the unit and, without latching it completely, press the continuous ow button.

4) Let water overow from the lter holder. This will clean the serving group.

The continuous ow of water from the unit can cause burns due to accidental skin contacts.

5) Stop the water ow and insert the lter cup in the unit.

6) Start the continuous ow and then stop it after a couple of seconds; repeat this operation a few times

(this is to clean the drain duct and the solenoid of the unit).

7) Clean the perforated lter and place it back into the cup. Let the water ow for a couple of seconds to

clean the lter, the cup and the spouts.

8) Repeat these operations on all the serving units.

Note: Special commercially available detergents can be used to effectively clean the serving units.36 ENGLISH

8.2 Cleaning the tray and the cup support grill

The lower cup support grill 5 must be kept clean at all times; during the normal use of the machine, it is suf- cient to clean it with a sponge or a moist cloth. At the end of the working day, clean the tray and the grill also in the internal areas using warm water and neutral detergent.

8.3 Cleaning the steam spout

Clean the steam spout with a sponge or a moist cloth at the end of the working day to remove all traces of milk or other substances that inevitably form during the normal operation of the machine. Open the steam tap, placing the spout in the tub, to remove any residues which may have accumulated in the spout.

8.4 Substitution of boiler water

To change the water inside the boiler, proceed as follows:

1) Cut off the power supply to the machine by turning the main switch 1 to position 0 (zero).

2) Remove the tub and the cup support grille and open the boiler drain tap.

3) Open a steam drawing valve to facilitate the draining of the water until the end of the operation.

4) When water no longer comes out of the boiler, close the boiler drain and the steam drawing tap.

5) Charge the machine with water following the instructions of paragraph “Charging the water in the boiler”.

6) To improve product quality, it is recommended to replace the water in the boiler and to change the water

contained in the water circulation pipes when starting the machine every day.

If the machine is to remain idle for long periods (weekly closing days, holidays, etc.), take the following precautions:

1) Turn the main switch to 0 (zero) and as necessary disconnect the power cord or the main switch of the

2) Close the cut-off valve of the water mains.

3) If you think the temperature might drop below 5 °C, completely drain the water system of the machine.

4) Wash the components of the machine as described in the paragraph on routine maintenance.

5) Cover the machine if necessary.

10. Information for users in the European community

Pursuant to European Directive 2012/19/EU on electrical waste (WEEE), users in the Euro- pean community are advised of the following.

• Thesymbolwiththecrossed-outdustbinontheapplianceoritspackagingindicatesthat at the end of the product’s life cycle, it must be collected separately from other waste.

• Suitable separate collection oftheequipment for subsequent recycling, treatment and disposal contributes to preventing possible negative consequences for the environment and health, and favours the recycling of materials that the unit is made of.

• InaccordancewithEuropeanDirective2012/19/EU,abusivedisposaloftheproductby the user will result in application of penalties as set forth by local law.37 ENGLISH

The warranty becomes void if:

• Thewarrantydoesnotcoverdamagecausedbyneglect,useandinstallationnotincompliancewiththe recommendations of this manual, improper operation, abuse, lightning and atmospheric phenomena, overvoltage, overcurrent, or insufficient or irregular power supply.

12. Declaration of conformity

The manufacturer: La San Marco S.p.A. 34072 Gradisca d’Isonzo (GO) Italy – Via Padre e Figlio Venuti, 10 phone [phone] – fax [phone] – http://www.lasanmarco.com declares under its own responsibility that the ESPRESSO COFFEE MACHINE (as identied by the data on the tag located on the machine) is complaint with the following European directives: 2006/42/EC, 2006/95/ EC, 2004/108/ EC, Regulation (EC) no. 1935/2004, 2012/19/EU, 2011/65/EU. For verication of compliance with said directives, the following harmonized standards have been applied: EN ISO 12100, EN 60335-1, EN 60335-2-75.

The boiler is full of water and the water flows out of the safety valve. The safety valve trips in and vents the steam. The machine was started properly but the water in the boiler does not warm up. There is no water flowing from a serving unit. The programmed servings of espresso coffee are not constant or vary on the dif- ferent units. It is not possible to pro- gram the serving quantities on unit 1 and to copy them on the other units. Displacement meters alarm. Autolevel alarm. The machine is switched on (the main switch is in posi- tion 1 or 2 and the signal light is lit) but the electronic control is out of order.

• One of the outflow lines from the boiler or from a circuit of the unit has a leak.

• Malfunction of electrical system (the electrical heating element is always connected).

• Pressureincreaseintheboiler (the safety valve trips in at 1.9-

• Theelectricheatingelementis defective or is not connected.

• Coffee ground too fine or excessive quantity for type of filter used.

• Abnormal operation of the electronic control unit or of the displacement counters.

• Leakfromservingunitsolenoid valve.

• Abnormal operation or defective displacement meter of unit 1.

• Displacement meters jammed or defective.

• Lack of water in the autolevel circuit.

• Main water supply valve closed.

• Faultyautolevelsolenoid.

• Theelectricwiringoftheelec- tronic control unit is defective.

• The electronic control unit is defective.

• Checktheautolevelcircuit,theman- ual charging button, and the boiler heat exchangers.

• Replace worn or damaged parts to eliminate the leak.

• Check the wiring that feeds the heat- ing element and the pressure switch.

• Inthemachineswithelectronictem- perature control, check the proper operation of the electronic control unit, the triac, the level probe, and the electrical wiring.

• Checkiftheheatingelementiscon- nected to the power supply.

• Check if the heating element safety thermostat has tripped in and check its proper operation.

• Inthemachineswithelectronictem- perature control, check the proper operation of the electronic control unit, the triac, the level probe, and the electrical wiring.

• Adjust the grindingcoarseness and/ or the quantity of ground coffee.

• Check that the injector, the upper circulation tube, the spray nozzle and the solenoid of the unit are not clogged.

• In the machines with electronic metering, check the displacement meter and its valves.

• Check the solenoid of the unit, its wiring and the fuse in the electronic control unit.

• Programtheservingquantitiessepa- rately on each serving unit. If the problem persists, replace the dis- placement meter of the serving unit affected.

• Replace the solenoid valve of the serving unit.

• Checkthewiringanditsconnections, the control unit and the fuses.

• Check the hydraulic circuit of the autolevel.

• Checkiftheon-offvalveonthewater supply is open.

• Replacetheautolevelsolenoid.

• Check the electrical wiring, the elec- tronic control unit and its components.

• Replacetheelectroniccontrolunit.39 english The machine feeds water from one serving unit although the serving has not been selected. 85 S models: one unit serves water continuously. The steamer discharges only small quantities of steam or water droplets. Small drops flow out of the water tap. The unit emits a whistle after serving the coffee. The filter cup comes off the serving unit. When coffee is being served, some of it drips out of the edge of the filter cup. Water leaking from the drain of the serving unit solenoid. Light cream (the coffee flows out of the spout rapidly). Dark cream (the coffee drips out of the spout). Presence of grounds in coffee cup. Coffee with too little cream in cup (spurts out of spout). The cream in the cup is too thin (it disappears after a few seconds). Presence of depressions in the coffee grounds (looking inside the filter cup).

• Solenoidand/orpumpfedcon- tinuously.

• Electric circuit of unit improp- erly connected.

• Faulty operation of expansion valve.

• Worn gasket under the filter cup.

• Worn gasket under the filter cup.

• Malfunctioning unit solenoid.

• Waterleakingfromunitcooling system. a. Coarse grinding. b. Low pressing pressure. c. Small quantity of ground cof- fee. d. Water temperature below 90°C. e. Pump pressure above 9 bar. f. Sprinkler filter on unit clogged. g. Filter holes widened (filter cup). a. Fine grinding. b. High pressing pressure. c. Large quantity of ground coffee. d. High percolation water tem- perature. e. Pump pressure below 9 bar. f. Sprinkler filter on unit clogged. g. Filter holes clogged (filter cup). a. Coffee ground too fine. b. Worn grinders in grinder-dis- penser unit. c. Pump pressure above 9 bar. d. Sprinkler filter on unit clogged. e. Filter holes widened (filter cup).

• Sprinkler filter on unit clogged.

• Coffeeextractiontakesalong time due to clogged filter.

• Coffeeextractiontoofastdue to clogged sprinkler filter.

• Watertemperaturetoohigh.

• Sprinklerfilterpartlyclogged.

• Lowamountofgroundcoffee for the fiter used.

• Short-circuited control unit relay.

• Replacetheelectroniccontrolunit.

• Check the connection and correctit (see wiring diagram).

• Check the expansion valve and if necessary replace it. Calibrate the valve at 12 bar.

• Checkthepumpoperatingpressure. Calibrate the pump at 9 bar.

• Clean the serving unit and the filter cup.

• Clean the serving unit and the filter cup.

• Checktheunitsolenoid.

• Check the plunger on the solenoid and clean the solenoid.

• Checkthecoolingtubeandtheseal rings inside the unit. a. Finer grinding. b. Increase the pressure. c. Increase the quantity of ground coffee. d. Increase the pressure in the boiler. e. Decrease the pump pressure. f. Check and clean with blind filter or replace. g. Check and replace the filter. a. Coarser grinding. b. Reduce the pressure. c. Decrease the quantity of ground coffee. d. Decrease the boiler pressure. e. Increase the pump pressure. f. Check and clean with blind filter or replace. g. Check and replace the filter. a. Coarser grinding. b. Replace the grinders. c. Decrease the pump pressure. d. Check and clean with blind filter or replace. e. Check and replace filter.