NERO / NERO INSTANT
Page 45
Version 1.4 / January 2018
ТМ
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 drinks 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 drinks 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
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 au
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tomatically block the dispensing of ground coffee drinks).
The dosing apparatus activates, feeds the ground coffee into the espresso group, after which the espresso
group closes and the coffee is pressed.
After this hot water release valve is opened towards the espresso group, the internal pump turns ON and
hot water from the boiler reaches the espresso group.
The water flows through the pressed coffee tab and flows out into the cup.
After the set amount of water has flown through the espresso group, the flow stops and the used coffee is
disposed of into the waste container.
Adding the foamed milk into drinks (fRESH MILK option)
Milk is taken from the milk storage container by the milk supply tube, mixed with air and supplied to the
cappuccinatore. Steam is also supplied from the steam boiler to the cappuccinatore for foaming milk.
To avoid problems associated with milk dispensing locate the milk container level with the vending ma
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chine and make sure that the milk supply tube lies on the bottom of the container and has no kinks.
To adjust the milk flow rate from the container the Hofmann clamp (see fig. 4.2 pos. 8) is used, which is
included in the vending machine scope of delivery with FRESH MILK option. The milk flow rate is adjusted
by the clamp screw (the flow rate is lowered when the screw is tightened, whereby the milk foam becomes
hotter and “airy” and vice versa).
7.2 Preparation of drinks
Use only pasteurized and UHT milk!
Milk fat content should be in the range of 2.5 - 3.6%.
The milk should be stored at a temperature range from 3.5 to 7
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