NW Global Vending – TECHNICAL MANUAL
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New dispenser “KORO”
07/10/2005
page 28 / 42
The espresso version is equipped with the new
Z3000
unit, used in three specific versions (refer to the specific Z3000
service manual). In any case it is an evolution, with many improvements, of the model Z2000, more specifically planned for
the following versions:
1)
Standard version, which is equivalent to the old Z2000 but with a simpler structure.
2)
Variable chamber version, which permits brewing with variable coffee doses.
3)
Larger chamber version, which permits selections with more coffee compared to the maximum possible with the base
unit.
A heating system has been designed for all versions, for the purpose of increasing the temperature of the first coffee.
A specific brewer unit for filtered coffee,
SIGMA BREWER
, is used in the
FB
version.
For further details on the functional units refer to the specific H&C functional unit manuals
“BREWER UNITS”.
The Espresso brewer unit uses that is ground on the spot by the grinder and doser unit, specifically designed for this model
and that also uses a particular method of metering the ground coffee dose.
The FB unit uses specific coffee, already ground to an optimum grade for quick and adequate brewing.
21– ESPRESSO & FB BREWER UNITS
In order to remove the unit from the vending
machine, undo the brass knurled knob, disconnect
the unit's hydraulic connections, undoing the upper
tube fastening nut and release the dispensing tube.
When removing the unit, make sure it positioned at
the upper dead centre (Fig. 1). To reposition it,
follow the same procedure in the reverse order,
again making sure it positioned at the upper dead
centre, carefully inserting it onto the special
positioning pins.
D
ETAIL OF BASE
Z3000
UNIT BEING REMOVED
Heating plate
functioning by
contact with the
brewing chamber
