Necta Brio Espresso, Installation, Use And Maintenance Manual

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© by NECTA VENDING SOLUTIONS SpA
12
0101 Brio C-I
ADJUSTING THE SETTING OF THE
COFFEE UNIT PISTON STROKE
When the upper piston is correctly positioned, the coffee
unit can operate with coffee doses of 5.5 to 7.5 g.
To change the piston position (see Fig. 14):
- remove the snap ring from its seat;
- place the piston in the proper adjusting notches:
.less deep notches for 5.5 to 6.5 g doses;
.deeper notches for 6.5 to 7.5 g doses.
1 - Snap ring
2 - Upper piston
3 - Reference fins
Fig. 14
WATER TEMPERATURE CONTROL
If the boiler temperature is to be changed, adjust the
special trimmer (see Fig. 20) keeping in mind that:
- tightening will increase the temperature;
- loosening will decrease the temperature;
- the temperature varies by approx. 1° C every 2 turns.
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. 15) 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
2 test selections must be performed in order to check
the new grade of the ground coffee:
the finer the grade of grinding the longer the time neces-
sary for dispensing the coffee and vice versa.
Fig. 15
1 - Coffee grinder
2 - Grinding adjusting knob
3 - Dose regulator
4 - Dose adjusting lever
5 - Reference notches