La San Marco 20/20 CLASSIC Series, Использование и обслуживание

Страница: 45 / 104

44
ENGLISH
Note:
4QFDJBMDPNNFSDJBMMZBWBJMBCMFEFUFSHFOUTDBOCFVTFEUPFGGFDUJWFMZDMFBOUIFCSFXJOHHSPVQT
8.2 Cup support tray and grate cleaning
5IFMPXFSDVQTVQQPSUHSBUFNVTUCFLFQUDMFBOBUBMMUJNFTEVSJOHOPSNBMNBDIJOFVTFJUJTTVGýDJFOUUPDMF
-
an it with a sponge or a moist cloth. At the end of the working day, clean the tray and grate also in the internal
areas using warm water and neutral detergent.
8.3 Steam wand cleaning
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 valve,
inserting the wand inside the tray to remove any residues which may have accumulated inside the wand.
8.4 Boiler water replacement
To change the water inside the boiler, proceed as follows:
1) Cut off the power supply to the machine by turning the main switch to position 0 (zero).
2) Remove the cup support tray and grate and open the boiler drain tap.
3) Open a steam 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 valve and the steam valve vapore.
5) Fill the machine with water following the instructions of paragraph “Filling the boiler with water”.
6) For best product quality, when the machine is turned on each day, it is recommended to replace the water
in the boiler, and also the water in the water system tubes..
9. Idle periods
If the machine is to remain idle for long periods (weekly closing days, holidays, etc.), take the following pre-
cautions:
1) Turn the main switch to 0 (zero) and as necessary disconnect the power cord or the main switch of the
electrical mains.
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. Safety devices
10.1 Manual reset safety thermostat
The safety thermostat is located next to the control unit and can be accessed by removing the left side panel
from the machine. The thermostat probe, placed inside the electric heating elements, cuts the electric power
supply any time there is an abnormal increase in temperature. The heating elements will no longer hear the
water in the boiler and it will not be possible to use the machine correctly. Contact a technician from the LA
4"/."3$041"UFDIOJDBMTFSWJDFDFOUSF
5IFTBGFUZUIFSNPTUBUXJMMIBWFUPCFSFTFUCZUIFTQFDJBMJ[FE-"4"/."3$041"UFDIOJDJBOXIPNVTUýSTU
remove the cause of the malfunction.
10.2 Safety valve
The safety valve is installed on the upper part of the boiler, in the part corresponding to the area occupied
by the steam. The valve is activated if there is a considerable pressure increase inside the boiler. The valve
rapidly lowers the pressure by expelling the steam in the atmosphere (the valve trips in at 2÷2.5 bar). If the