Necta Korinto UL, Installation, Use And Maintenance Manual

Page: 19 / 56

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© by N&W GLOBAL VENDING SpA 07 06 274 -00
Fig. 19
1 - Coffee grinder
2 - Grinding adjusting knob
3 - Reference notches
4 - Coffee conduit
5 - Coffee funnel
WATER TEMPERATURE CONTROL
The boiler temperature is controlled by the software
and can be adjusted directly from the menu.
ADJUSTING THE GRADE OF GRINDING
When a variation in the grade of grinding is desired, turn
the relevant adjusting knob on the grinder (see Fig. 19) and
more specifically:
- turn the knob anticlockwise for coarser grinding;
- turn the knob clockwise for finer grinding.
For optimum results, it is good practice to vary the grade
of grinding with the coffee grinder motor running.
N.B.: After adjustment of the grade of grinding, at least
3 test selections must be performed in order to check
the new grade of grinding for ground coffee:
The finer the grade of grinding the longer the time neces-
sary for dispensing the coffee and vice versa.
After the adjustment it will be necessary to check also the
amount of ground coffee, which can have small variations.
ADJUSTING THE COFFEE DOSE
The grinder is fitted with a sensor that can count the
number of rotations of the grinding wheels.
This allows the control software of the machine to deter-
mine the number of rotations, and therefore grams of
coffee, for each single selection.
With the programming procedures it will be possible to set
the grams (5.5 to 11.5 g) of ground coffee for each
selection.
To take the dose just remove the coffee unit and select the
special item from “Special functions” of the “Technician”
menu (see relevant section).