Necta Koro Espresso, Installation, Use And Maintenance Manual

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© by N&W GLOBAL VENDING SpA 0512 264 - 00
DECAFFEINATED DISPENSING CYCLE
The machine is supplied with a door, for manually inserting
ground coffee, locked by default.
According to the location needs, it is possible to
unlock the door to be able to manually insert decaffeinated
coffee or similar.
It is necessary to ensure that other product types are not
inserted.
The door for introducing the decaffeinated coffee is fitted
with a magnet that, through a sensor located on the door,
signals to the machine that the door was opened.
Should the standard settings need to be changed, proceed
as indicated in the next sections of this manual.
The weight of products, the water dose and temperature are
directly controlled by the microprocessor.
To adjust them it is therefore necessary to follow the
programming procedures.
STANDARD SETTINGS
The vending machine is supplied with the following set-
tings:
- coffee temperature (at the spout) approx. 70÷80° C;
- instant product temperature (at the spout) 70÷80°C
approx.;
The machine standard settings assign the same price to all
selections, as indicated in the selection dose table.
ADJUSTING THE BREWING
CHAMBER VOLUME
When the upper piston is correctly positioned, the coffee
unit can operate with coffee doses of 7.5 to 10.5 gr.
To change the piston position (see Fig. 19) do as follows:
- remove the snap ring from its seat;
- place the piston in the proper adjusting notches:
.less deep notches for 9.5 to 9.5 gr doses (8 oz);
.deeper notches for 8.5 to 10.5 gr doses (12 oz).
Decaffeinated
The display indicates the blinking message:
Decaffeinated coffee based selections are dispensed with-
out running the coffee grinder.
The brewing cycle is the same as in the espresso coffee.
By pressing the special “reset decaffeinated” button before
dispensing the drink, the “decaffeinated” pre-selection is
cancelled, the machine rotates the brewer unit and returns
to normal operating mode.
CHECKING AND ADJUSTING
THE MACHINE SETTINGS
To get the best results from the product used, the following
should be checked:
That the used coffee dose is lightly compressed and
damp.
The grade of grinding of ground coffee.
The dose weight of the instant products.
The drink temperature.
The water dose.
Fig. 19
1 - Snap ring
2 - Upper piston
3 - Reference fins
Fig. 18
1 - Door opening signalling magnet
2 - Decaffeinated door
3 - Decaffeinated funnel
4 - Coffee funnel