La San Marco 100 E/S PRACTICAL - Machine Start-up and Adjustments; Filling the Boiler with Water

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4. Start-up
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4.1 Charging the water in the boiler
1) Check that the machine main switch 1 (gure 1) is in position 0 (zero).
2) Remove the tray and the cup support grill and make sure that:
a) The boiler drain valve a is closed (gure 8).
b) The taps of the automatic level valve b-c must be open (gure 8).
c) MODELS 100 S: The taps for the cold water dispensers d must be open (gure 9).
d) MODELS 100 E: The taps for the volumetric counters e must be open (gure 10).
Figure 8 Figure 9 Figure 10
3) Open the water supply on-off valve.
4) Open a steaming tap 6 (gure 1) to allow the exit of the air in the boiler lling phase.
5) Reinstall the tray and cup support grill in its place.
6) Turn the knob of the main switch to position 1 so as to carry out automatic lling of the boiler with water.
In models100 Practical, when water reaches the level probe, lling stops and the green “MAX” LED of the
electronic level control comes on. In other models of the 100 series, when water reaches the level probe,
lling stops and the blue “OK” LED of the electronic level control comes on.
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5. Adjustments
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