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5. Installation

• The installation must be carried out by authorized La San Marco technical personnel.
• The coffee machine is delivered in a suitable packing. The packing contains the machine and its ac-

cessories, the user manual and the conformity 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.

• All of the packaging must be carefully conserved in case the machine needs to be tran sported in the future.
• The machine should be placed on a perfectly horizontal plane suffi ciently sturdy to support the weight of the 

machine, with a suffi cient clearance around it to dissipate the heat generated during its operation.

• Do not install the espresso coffee machine in places where cleaning is likely to be car ried out with jets of 

water. Do not immerge the unit in water to clean it.

• For safety against hazards related to electrical currents, keep the machine away from sinks, tubs, aquariums, 

taps, and areas that are wet or where water may splash.

• The machine creates heat. Therefore it needs to be placed in a room that is suffi ciently ventilated to ensure heat 

dissipation. Keep the machine away from sources of direct heat.

• Make sure that the voltage of the power socket does not differ from that indicated on the technical data 

and on the identifi cation tag on the machine. If the voltage is diffe rent, do not connect the machine. This may 
be dangerous and may damage the unit.

5.1 Equipment provided

The machine packing contains the equipment kit, which includes the following items:
- FIlter cups with fi lter restraint ring
- Filters for fi lter cups (single and double doses)
- blind fi lter for fi lter cup
- spouts for fi lter cups (single and double doses)
- press for ground coffee
- braided  900mm with 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 fi lter (on request).
- braided  600mm with stainless  steel tube for water connection (pump infl ow - water softener)
- braided  1600mm with stainless  steel tube for water connection (pump outfl ow – coffee machine) 

5.2 Water mains set-up

FEEDING LINE
Bring the water feeding tube (of at least 3/8” diameter) up to the machine and install an on-off valve (preferably 
of 3/8” ball type) that allows a rapid opening and closing operation.

DRAIN LINE
Provide an inspectable drainage pit on the fl oor connected with the sink drainage line, suitable for receiving the 
machine gravity drainage tube. The drain tube must be positioned so that the water ~ ows out freely, without 
possibility for the pipe to clog up during the operation.

5.3 Water softener (optional)

The water softener for softening the mains water can be manual or automatic, depending on customer’s re-
quest.

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 ma-
chine. A water softening system should be provided in order to guarantee the effi ciency, performance and duration 
of the components in the machine.

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Содержание 80/12 L

Страница 1: ...USE AND MAINTENANCE Preziosa 80 12 Preziosa 80 16M 80 12 L 80 16M L ...

Страница 2: ...libration of water pressure in the boiler 28 6 4 Heating the water in the boiler 28 6 5 Cup heater 28 6 6 Steam delivery 28 6 7 Hot water delivery 28 6 8 Preparation of ground coffee 28 6 9 Brewing coffee 28 6 10 Draining the boiler 28 6 11 Automatic operation programming the coffee brewing cycles 29 6 12 Important information on daily maintenance 29 6 13 Alarms 29 7 Instructions for authorized in...

Страница 3: ... or mobile guards removed or with the safety devices 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 Strict compliance with the routine maintenance instructions of this manual is required for a safe and efficient operation of the appliance In the e...

Страница 4: ...REZIOSA 12 3 3 19 5500 7000 5500 7000 89 970 530 855 80 PREZIOSA 16M 2 2 12 3000 4500 3000 4500 80 780 530 855 80 PREZIOSA 16M 3 3 19 5500 7000 5500 7000 89 970 530 855 Standard Hot water and steam delivery Steam powered coffee cup heater Voltages 400 V 3N threephase 230 V 3 threephase 230 V monophase Automatic level control automatic charging of water in boiler External pump 300 W Optional access...

Страница 5: ...23 3 Description of the machine 6 7 8 10 9 11 16 15 17 2 1 3 4 12 13 14 5 18 18 ...

Страница 6: ...r 12 Espresso coffee serving unit 13 Filter holding cup with handle 14 Manual boiler water filling lever 15 Hot water spout 16 Boiler pressure 3 bar 17 Visual level indicator 18 Manual servine push button 21 Boiler discharge valve 22 Automatic level control valve 23 Button valve 24 Automatic level control valve 25 Non return and safety valve 26 Automatic level solenoid 27 Pressure switch 28 Pressu...

Страница 7: ...e 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 900mm with stainless steel tube for water connection water supply water softener rubber drain hose with steel coil for water drain 3 8 nipples for hose con...

Страница 8: ... with current standards The power socket must be equipped with a working earth connection LA SAN MARCO SPA will not in any way be held liable if legal requirements are not met An improper installation can cause injury or damage for which the manufacturer cannot be held liable For the electrical connection it is necessary to install an omnipolar main switch upstream of the power supply this switch ...

Страница 9: ...ines 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 pressure gauge 38 The optimum pressure is 9 bar The pressure is adjusted to the desired value by operating on the pump screw the pressure is increased by turning clockwise it is decreased by turning counter ...

Страница 10: ...iver 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 brew ing unit...

Страница 11: ...ance To keep your espresso machine in top operating condition and obtain maximum performance the following cleaning operations must be performed on the brewing units at the end of the work day a Install the blank filter without holes into the filter holder This filter is provided with the machine b Install the filter holder with blank filter onto the brewing unit to be cleaned but do not tighten t...

Страница 12: ...ion 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 m3 If the room has a smaller volume it will be necessary to install the appliance directly under a ...

Страница 13: ...fied 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 Thermocouple 52 The thermocouple operates on the valve 51...

Страница 14: ...ce and repairs are carried out by unauthorized personnel The machine is used for any other than its intended purposes The original parts are replaced with parts from different manufacturers The warranty does not cover damage caused by neglect use and installation not in compliance with the recommendations of this manual improper operation abuse lightning and atmospheric phenomena over voltage over...

Страница 15: ...er 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 5 The programmed servings of espresso coffee are not con stant or vary on the dif ferent units Abnormal operation of the elec tronic control unit o...

Страница 16: ...nger on the solenoid and clean the solenoid Replace the solenoid Check the cooling tube and the seal rings inside the unit 18 Light cream the coffee flows out of the spout rapidly a Coarse grinding b Low pressing pressure c Small quantity of ground coffee d Water temperature below 90 C e Pump pressure above 9 bar a Sprinkler filter on unit clogged g Filter holes widened filter cup a Finer grinding...

Страница 17: ...filter Clean or replace the sprinkler filter Lower the temperature in the boiler 23 Presence of depressions in the coffee grounds looking inside the filter cup Sprinkler filter partly clogged Low amount of ground coffee for the fiter used Clean or replace the sprinkler filter Adjust the amount of ground coffee Note If it is not possible to solve the problem as described above or if other malfuncti...

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