16
© by N&W GLOBAL VENDING SpA
02-2007 266 00
ADJUSTING THE BREWING
CHAMBER VOLUME
The brewing chamber volume must be adjusted according
to the layout settings. To change the piston position (see
fig. 20) do as follows:
- Take the snap ring out of its seat.
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. 21) and
more specifically:
- turn the knob anticlockwise for coarser grinding;
- turn the knob clockwise for finer grinding.
For optimum results, it is advisable 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 grinding for ground coffee:
the finer
the grade of grinding the longer the time necessary for
dispensing the coffee and vice versa.
- According to the dose and to the type of release, place
the piston as indicated in the table:
ADJUSTING THE COFFEE DOSE
Warning !!!
The coffee dose must be adjusted only in machines
set for single release.
In machines set for double release it is necessary to
set the coffee dose to 6 g.
The dose adjusting lever can be positioned in one of
the 6 reference notches bearing in mind that:
- the dose is increased by lifting the lever,
- the dose is reduced by lowering the lever,
- every notch changes the dose by approx. 0.25 gr.
In addition, when the lever is fully rotated upwards, the
ratchet can be released from the groove in the dose
regulator (see fig. 21) and replaced into a different groove
to change the average dose setting to:
- high
8 gr. ± 0,5
- medium
7 gr. ± 0,5
- low
6 gr. ± 0,5
To take the dose just remove the coffee unit and use the
special functions in the “maintenance” (see relevant sec-
tion).
Important notice!!!
To refit the coffee unit, pay special attention to the
piston position. Reference notches on the external
disk and on the unit case should match (see fig. 17).
Fig. 20
1 - Snap ring
2 - Upper piston
3 - Adjustment grooves
Fig. 21
1 - Coffee grinder
2 - Grinder knob
3 - Dose regulator
4 - Dose adjusting lever
5 - Reference notches
Standard
brewer unit
Ø 37mm
Large
brewer unit
Ø 45mm
1 dose release
5.5gr to 7.5gr
less deep grooves
not possible
1 dose release
6.5gr to 8.5gr
deeper grooves
less deep grooves
2 dose release
6gr max. (12gr)
not possible
deeper grooves
Summary of Contents for Colibri UL 120V
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