NW Global Vending – TECHNICAL MANUAL
This document was produced by MARK AC for the exclusive use of the technical personnel in the after-sales service.
. No part of this document may be divulged to a third party or reproduced partially or entirely without the prior permission of NW GLOBAL VENDING
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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.
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.
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