© by N&W GLOBAL VENDING S.p.A.
22
05-2008 3235-00
at the end of the dispensing cycle, the purge valve
will open and the coffee dose is slightly compressed
to discharge residual water through the 3rd way of the
dispensing solenoid valve. the purge solenoid valve will
open to depressurise the upper piston.
as soon as the rotation of the ratio-motor is completed
(see fig. 23), this will cause the rocking lever (5) to lift up
the pistons and the dose.
While the brewing chamber is returning to the vertical
position, the scraper on the coffee funnel will prevent the
used dose from moving and cause it to fall down.
the lower piston will return to the top dead centre.
dEcaFFEINatEd dISPENSINg cYcLE
When the machine is supplied, the ground coffee flap is
locked.
as required by the location, you may decide to unlock
the door in order to be able to pour decaffeinated coffee
or alike manually.
It is necessary to avoid pouring any other type of prod-
ucts.
a magnet arranged on the door will signal to the ma-
chine that the door has been opened. signalling will
occur through a sensor arranged on the door
The “decaffeinated reset” button shall be arranged on
the keyboard to enable the user to manage the decaf-
feinated cycle.
The following message will flash on and off on the dis
-
play:
Decaffeinated
The selections based on decaffeinated coffee are dis
-
pensed without operating the grinder.
the dispensing cycle is the same as the one for espres-
so coffee.
If you press the “decaffeinated reset” key before dispens
-
ing, you will cancel the “decaffeinated” preselection.
the machine will rotate the brewing unit and restore its
normal operation.
cHEcKINg aNd rEgULatINg tHE
SEtUPS
to achieve the best results with reference to the product
in use, it is recommended to check:
the used coffee dose must be slightly compressed and
moistened.
the granulometry of the ground coffee.
the dose of products.
the temperature of drinks
the water dose.
If it is necessary to vary the setup, act as it is specified
by the following paragraphs.
the dose of products, the water dose and the tempera-
ture are directly checked from the microprocessor.
to vary them, please follow the programming proce-
dures.
StaNdard SEtUPS
When supplied, the vending machine is set up as fol-
lows:
- coffee temperature (at the nozzle) about 158-176°F
- instant temperature (at the nozzle) about 158-176°F
the standard setup of the vending machine will match all
selections to the same price specified by the selection
dose table.
WatEr tEmPEratUrE adjUStEmENt
The temperature of coffee and instant boilers is
controlled by the software and it can be directly
adjusted from the menu
.
StEam boILEr tEmPEratUrE
the water and steam temperature in the boiler is indi-
rectly established by the pressure switch controlling the
boiler pressure.
a temperature of 255-260°F corresponds to a pressure
of 18.8 - 21.7 psig (1.3 - 1.5 bar).
Summary of Contents for Kobalto
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