User manual for NERO / NERO INSTANT
Page 26
Version 3.2 / December 2017
3.6 Vending
machine’s working principle
Instant drinks:
These drinks are prepared by continuously mixing the instant ingredient (powder) with hot water and
then mixing various mixed ingredients in accordance with the drink’s recipe, which is set using the vending
machine’s service menu.
To make the drink the water is pumped into the float chamber, from where it goes into the boiler, until it
is filled. The boiler heats the water and maintains it at the temperature level set in the vending machine’s
configurations.
The required quantity of the ingredient is poured out of the container into the mixer. The quantity of the
ingredient is set in accordance with the selected drink’s recipe.
Opening one of the valves of the boiler the hot water is supplied to the required mixer, which is located
near the container with the required ingredient.
When the water flows into the mixer, the ingredient is solved into the amount of water set in the recipe.
Water and the ingredient are mixed inside the mixer until the required drink is obtained. From the mixer
the drink flows through the dispensing nozzle into the cup.
Coffee bean drinks (for NERO):
Coffee beans go from the coffee bean container into the coffee grinder, where they are ground and fed
into the dosing apparatus (if the dosing apparatus will not be filled within 10 seconds the vending machine
will automatically block the dispensing of ground coffee drinks).
The dosing apparatus activates, feeds the ground coffee into the espresso group, after which the es-
presso group closes and the coffee is pressed.
This vending machine prepares and sells drinks made of instant ingredients and coffee beans (for
NERO) / instant coffee (for NERO INSTANT).
After the client selects the drink by pressing one or two buttons (depending on the settings) on the sen-
sor keypad for selections, the vending machine prepares and disposes of the selected drink.
In the case of installation of payment systems, you must first make a loan for a drink, and then click on
the selected beverage.
To make the process more interactive or visible, the drink disposal section is fitted with an LED board,
which changes its colour, depending on the process underway inside the machine:
•
Blue (Neon) colour – The machine is in standby mode;
•
Red colour – the machine is preparing the drink.
After the drink preparation process is completed the colour of the LED light changes from red to blue and
a single audio signal is given.
The drink preparation and disposal operation comprises of the following steps.
3.6.1 Placement of the cup
Before selecting the required drink, please place the cup in the drink disposal area. Only after making
sure that the cup is standing firm, select the drink.
ATTENTION: To avoid spilling over of the drink, into the disposal area tray, please make sure
to place the cup in the disposal tray before selecting the drink!
3.6.2 Preparation of drinks