Necta Korinto UL Maintance Manual

INSTALLATION, USE AND MAINTENANCE MANUAL

MANUEL D'UTILISATION, INSTALLATION ET ENTRETIEN

EN English Pag. 1
FR Français Pag. 44

Korinto Espresso

UL 120V

DOC. NO. H 274V 00

EDITION 1 07 - 2006

DICHIARAZIONE DI CONFORMITA’
DECLARATION OF CONFORMITY
DÉCLARATION DE CONFORMITÉ
KONFORMITÄTSERKLÄRUNG
DECLARACIÓN DE CONFORMIDAD
DECLARAÇÃO DE CONFORMIDADE
VERKLARING VAN OVEREENSTEMMING
INTYG OM ÖVERENSSTÄMMELSE
OVERENSSTEMMELSESERKLÆRING
YHDENMUKAISUUSTODISTUS

Dichiara che la macchina descritta nella targhetta di identificazione, è conforme alle disposizioni legislative delle direttive:
98/37/CE, 89/336, 73/23 CEE e successive modifiche ed integrazioni.

Declares that the machine described in the identification plate conforms to the legislative directions of the directives:
98/37/CE, 89/336, 73/23 EEC and further amendments and integrations.

Déclare que l’appareil décrit dans la plaque signalétique satisfait aux prescriptions des directives:
98/37/CE, 89/336, 73/23 CEE et modifications/intégrations suivantes.

Erklärt, daß das im Typenschild beschriebene Gerät den EWG Richtlinien
98/37/CE, 89/336, 73/23 sowie den folgenden Änderungen/Ergänzungen entspricht.

Declara que la máquina descripta en la placa de identificación, resulta conforme a las disposiciones legislativas de las
directivas: 98/37/CE, 89/336, 73/23 CEE y modificaciones y integraciones sucesivas.

Declara que o distribuidor descrita na chapa de identificação é conforme às disposições legislativas das directivas
98/37/CE, 89/336 e 73/23 CEE e sucessivas modificações e integrações.

Verklaart dat de op de identificatieplaat beschreven machine overeenstemt met de bepalingen van de EEG richtlijnen
98/37/CE , 89/336 en 73/23 en de daaropvolgende wijzigingen en aanvullingen.

Intygar att maskinen som beskrivs på identifieringsskylten överensstämmer med lagstiftningsföreskrifterna i direktiven:
98/37/CE, 89/336, 73/23 CEE och påföljande och kompletteringar.

Det erklæres herved, at automaten angivet på typeskiltet er i overensstemmelse med direktiverne
98/37/CE, 89/336 og 73/23 EU og de senere ændringer og tillæg.

Forsikrer under eget ansvar at apparatet som beskrives i identifikasjonsplaten, er i overensstemmelse med vilkårene i
EU-direktivene 98/37/CE, 89/336, 73/23 med endringer.

Vahvistaa, että arvokyltissä kuvattu laite vastaa EU-direktiivien 98/37/CE, 89/336, 73/23 sekä niihin myöhemmin tehtyjen
muutosten määräyksiä.

Valbrembo, 01/04/2005

ANTONIO CAVO

C.E.O

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© by N&W GLOBAL VENDING SpA 07 06 274 - 00

TABLE OF CONTENTS

English

INTRODUCTION PAGE 2

IDENTIFICATION OF THE VENDING MACHINE PAGE 2

IN CASE OF FAILURE PAGE 2

TRANSPORT AND STORAGE PAGE 2

POSITIONING THE VENDING MACHINE PAGE 3

WARNING FOR INSTALLATION PAGE 3

PRECAUTIONS IN USING THE MACHINE PAGE 3

WARNING FOR SCRAPPING PAGE 3

TECHNICAL SPECIFICA TIONS PAGE 3

POWER CONSUMPTION PAGE 4

ACCESSORIES PAGE 4

LOADING AND CLEANING PAGE 5

POWER SUPPLY SWITCHES PAGE 5

HYGIENE AND MAINTENANCE PAGE 5

USING THE VENDING MACHINE PAGE 6

CONTROLS AND INFORMATION PAGE 6

LOADING COFFEE PAGE 6

LOADING INSTANT PRODUCTS PAGE 6

SERVICE FUNCTIONS PAGE 7

FILLING THE WATER SUPPLY TANK PAGE 7

CLEANING THE WASTE TRAYS PAGE 7

DISASSEMBLING AND CLEANING THE MIXERS PAGE 8

CLEANING THE COFFEE UNIT PAGE 8

SUSPENDING FROM USE PAGE 8

INSTALLATION PAGE 9

POWER SUPPLY SWITCHES PAGE 9

UNPACKING THE VENDING MACHINE PAGE 9

CONNECTION TO THE WATER MAINS PAGE 9

CONNECTING TO THE POWER SUPPLY PAGE 10

INSTALLING THE PAYMENT SYSTEM PAGE 11

WATER SOFTENER UNIT PAGE 11

INSERTING THE LABELS PAGE 11

INITIALISING PAGE 12

FILLING THE WATER SYSTEM PAGE 12

OPERATION PAGE 13

COFFEE DISPENSING CYCLE PAGE 13

DECAFFEINATED DISPENSING CYCLE PAGE 14

CHECKING AND ADJUSTING THE MACHINE SETTINGS
PAGE 14

STANDARD SETTINGS PAGE 14

WATER TEMPERATURE CONTROL PAGE 15

ADJUSTING THE GRADE OF GRINDING PAGE 15

ADJUSTING THE COFFEE DOSE PAGE 15

NOTES ON PROGRAMMING PAGE 16

POWER ON PAGE 16

OPERA TING MODES PAGE 16

NORMAL OPERATING MODE PAGE 16

SURFING MODE PAGE 17

FILLER MENU PAGE 17

STATISTICS PAGE 18

SELECTION PRICES PAGE 18

CHANGE TUBES CONTROL PAGE 18

DISPLAYING THE TEMPERATURE PAGE 18

TEST DISPENSING PAGE 19

GSM PRE-ALARMS PAGE 19

EVADTS TRANSFER PAGE 19

FILLER MENU MASKING PAGE 19

TECHNICIAN MENU PAGE 20

FAILURES PAGE 20

PROGRAMMING PARAMETERS PAGE 21

STATISTICS PAGE 25

TEST PAGE 25

MISCELLANEOUS PAGE 26

UP-KEY SETUP CONTROL PAGE 26

UP-KEY STATISTICS CONTROL PAGE 26

MAINTENANCE PAGE 27

INTRODUCTION PAGE 27

BREWER UNIT MAINTENANCE PAGE 27

SANITISING THE MIXERS AND FOODSTUFF CIRCUITS
PAGE 28

PERIODICAL CLEANING PAGE 29

PRINTED BOARD FUNCTIONS
AND INDICA TOR LAMPS PAGE 30

ACTUATION BOARD PAGE 30

PUSH-BUTTON BOARD PAGE 31

BOILER CONTROL BOARD PAGE 31

PAYMENT SYSTEMS EXPANSION BOARD PAGE 31

HYDRAULIC SYSTEM PAGE 32
PROGRAMMING MENU SUMMARY PAGE 33
WIRING DIAGRAM PAGE 87

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IN CASE OF FAILURE

In most cases, any technical problems are corrected by
small repair operations; however, before contacting the
manufacturer we recommend that this manual be read
carefully.
Should there be serious failures or malfunctions, contact
the following:

N&W GLOBAL VENDING SpA
Via Roma 24
24030 Valbrembo
Italy - Tel. +39 - 035606111

TRANSPORT AND STORAGE

To prevent any damage, special care should be taken
when loading or unloading the vending machine.
The machine can be lifted by a motor-driven or manual fork
lift truck, and the blades are to be placed underneath the
machine.

Do not:

- overturn the vending machine;

- drag the vending machine with ropes or similar;

- lift the vending machine by its sides;

- lift the vending machine with slings or ropes;

- shake or jolt the vending machine and its packing.

The machine should be stored in a dry room where the
temperature remains between 0°C and 40°C.
Using the original packing, no more than 2 machines can
be stacked one on top of the other and must always kept
upright as indicated by the arrows on the packing.

INTRODUCTION

This technical documentation is part and parcel of the
vending machine and must always follow the machine
in case it is moved or transfer of ownership, so as to
allow consultation by different operators.

Before starting installation and using the machine, it is first
necessary to carefully read and understand the instructions
contained in this manual, as they offer important information
on installation safety, operating instructions and
maintenance.

This manual is divided into three chapters.

The first chapter describes the loading and routine

maintenance operations which are carried out in areas of
the machine accessible with simple use of the door key,
without using any other tools.

The second chapter contains the instructions for correct

installation and all information necessary for optimum use
of the machine.

The third chapter describes maintenance operations

which involve the use of tools to access potentially
dangerous areas.

The operations described in the second and third
chapters must be carried out only by personnel who
have the specific knowledge of the machine functioning
from a point of view of electrical safety and health
regulations.

IDENTIFICATION OF THE VENDING
MACHINE AND ITS CHARACTERISTICS

Every machine is identified by its own serial number,
indicated on the rating plate attached inside the cabinet on
the right side.
This plate (see Figure below) is the only one acknowledged
by the manufacturer and indicates all of the data which
readily and safely gives technical information supplied by
the manufacturer. It also assists in spare parts manage­ment.

Water mains characteristics

Absorbed power

Operating voltage

Model

Product code

Boiler data

Current

Frequency

Serial
number

Type

Fig. 1

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POSITIONING THE VENDING MACHINE

The vending machine is not suitable for outdoor installation.
It must be positioned in a dry room where the temperature
remains between 2° C and 32° C, and not where water jets
are used for cleaning (e.g. in large kitchens, etc.).
The machine can be placed close to a wall, but with the
back panel at a distance of at least 4 cm from it to ensure
correct ventilation. The machine must never be covered
with cloth or the like.
The machine should be positioned on a level surface.

Important notice!!

Access to the machine interior for maintenance and/or
repairs is via the back panel and from the side panels.
Therefore the machine is designed to be rotated, thus
allowing removal of the back panel and of the side panels.

Installation on a cabinet

The machine can be installed on a table or on any other
suitable stand (recommended height is 830).
If possible, it is advisable to use the special cabinet, which
can house the liquid waste tray, the water supply kit, the
payment system and, in the case of very hard water, the
softener unit.

WARNING FOR INSTALLATION

The machine installation and the following
maintenance operations should be carried out by
qualified personnel only, who are trained in the correct
use of the machine according to the standards in
force.

The machine is sold without payment system, therefore
the installer of such system has sole responsibility for any
damage to the machine or to things and persons caused by
faulty installation.

The integrity of the machine and compliance with the
standards of the relevant systems must be checked at
least once a year by qualified personnel.

All packing materials shall be disposed of in a manner
which is safe for the environment.

PRECAUTIONS IN USING THE MACHINE

The following precautions will assist in protecting the
environment:

- use biodegradable products only to clean the machine;

- adequately dispose of all containers of the products
used for loading and cleaning the machine;

- switch the machine off during periods of inactivity, thus
achieving considerable energy savings.

WARNING FOR SCRAPPING

The symbol indicates that the machine may not be
disposed of as ordinary waste; it must be disposed of in
accordance with the provisions of the European directive
2002/96/CE (Waste Electrical and Electronics Equipments

- WEEE) and of any resulting national laws, for preventing
any possible negative consequences to the environment
and to health.
For correct disposal of the machine, contact the dealer
from whom you have purchased the machine or our after­sales service.

TECHNICAL SPECIFICATIONS

DIMENSIONS

Height 715 mm

Width 331 mm

Depth 528 mm

Overall depth with door open 734 mm

Height of cabinet 830 mm

Weight 32 Kg

Power supply voltage 120 V~

Power supply frequency Hz 60

Installed power W 1400

Absorbed current A 11,8

Fig. 2

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PAYMENT SYSTEM

Using special kits, the machine can be fitted with payment
systems with Executive, MDB or BDV protocol.
The payment systems must be housed in the special side
module (optional).

SALE PRICES

A different programmable price can be set for each single
selection; the standard setting has the same sales price for
all selections.

WATER SUPPLY

From the mains, with a pressure of 7.3 to 123.3 psig (0.5
to 8.5 bar).
The machine can be equipped with water supply tanks of
different capacity, housed in an external module or in the
base cabinet.

AVAILABLE ADJUSTMENTS

Grade of grinding for espresso coffee.
Espresso coffee dose in grams.
Water doses by volume.
Instant product doses in grams.
Water temperature adjusted via software.

CONTROLS

- Presence of water

- Presence of coffee

- Operating temperature reached

- Presence of solid waste tray

- Presence of liquid waste container

SAFETY DEVICES

- Main switch

- Door switch

- Top panel switch

- Coffee unit ratiomotor switch triggered by liquid
collection container

- Manual-reset boiler safety thermostat

- Air-break float jamming (only with water supply from
the mains)

- Overflow solenoid valve (only with water supply from
the mains)

- Timer protection for:

Pump

Coffee unit ratiomotor
Coffee grinder

- Overheating protection for:

Doser units
Coffee unit ratiomotor
Magnets
Pump
Electric mixers
Coffee grinder motor

- Fuse protection for:

Main electrical circuit
Board power supply transformer

CAPACITY OF CONTAINERS

POWER CONSUMPTION

The machine power consumption depends on many factors,
such as the temperature and ventilation of the room where
it is installed, the inlet water and boiler temperature, etc.
With an ambient temperature of 22° C the following power
consumption levels resulted:

To reach operating temperature 70 Wh

For 24 h in stand-by 1231 Wh

The above power consumption calculated from average
data should only be taken as an indication.

ACCESSORIES

A wide range of accessories can be installed on the
machine to vary its performance:
The installation kits are supplied with their own installation
and test instructions, which must be strictly observed to
ensure the machine safety.

Important notice!!

The use of kits which are not approved by the manufacturer
of the vending machine does not guarantee compliance
with safety standards, especially for energised parts.
The manufacturer declines all responsibility for the use of
non approved components.

Installation and the following testing operations must
be carried out exclusively by personnel who have a
specific knowledge of the machine functions from a
point of view of electrical safety and health regulations.

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5

© by N&W GLOBAL VENDING SpA 07 06 274 -00

Chapter 1

LOADING AND CLEANING

POWER SUPPLY SWITCHES

Main

A main switch is fitted outside the machine, disconnecting
the power from the machine without having to open the
door.

The terminal strip supporting the line cable, the fuses
and the noise suppressor stay energised in any case.

Door

When opening the door a special switch disconnects the
power from the machine electrical system to allow the
operations described below, regarding loading and routine
cleaning, in full safety.

Top panel

Also when opening the machine top panel, a switch
disconnects the power, allowing loading operations in a
safe condition.

All operations requiring the machine to be energized
should be carried out EXCLUSIVELY by qualified per­sonnel, informed about the specific risks of such
situation.

HYGIENE AND MAINTENANCE

According to current safety and health rules and regula­tions, the operator of an automatic vending machine is
responsible for the hygiene of materials that come in
contact with foodstuff; therefore he must carry out mainte­nance on the machine to prevent the formation of bacteria.

At installation the hydraulic circuits and the parts in
contact with foodstuff should be fully sanitised to
remove any bacteria which might have formed during
storage.

The machine is not suitable for outdoor installation, it must
be installed in a dry room where the temperature remains
between 2° C and 32° C.
It is advisable that specific sanitising products are used for
cleaning also the surfaces which are not directly in contact
with foodstuff.
Some parts of the machine can be damaged by strong
detergents.
The manufacturer declines all responsibility for damage
caused by non-compliance with the above instructions or
by the use of strong or toxic chemical agents.

Before starting any maintenance operations requiring
parts of the unit to be removed, the machine must
always be switched off.

Do not use sprayed water for cleaning the machine.

Fig. 3

1 - Tray detection switch
2 - Tilting cup support
3 - Coffee unit
4 - Door switch
5 - Coffee funnel
6 - Grinding adjustment knob
7 - Chute for decaffeinated coffee
8 - Top panel switch
9 - Machine top panel
10 - Coffee beans hopper
11 - Instant prod. container
12 - Coffee container shutter
13 - Instant prod. mixer
14 - Spouts tray release button
15 - Liquid waste tray
16 - Main external switch

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USING THE VENDING MACHINES FOR HOT
DRINKS IN OPEN CONTAINERS

(Ex.: plastic cups, ceramic cups, jugs)

Vending machines for drinks in open containers should be
used only to sell and dispense drinks obtained by:

- brewing coffee

- reconstituting instant and lyophilised products.

These products should be declared by the manufacturer
as “suitable for automatic vending” in open containers.

The dispensed products should be consumed imme­diately. They should never be preserved and/or packed
for later consumption.

Any other use is unsuitable and thus potentially danger­ous.

CONTROLS AND INFORMATION

The machine should operate at an ambient temperature of
2°C to 32°C.
The labels with the selection menu and the operating
instructions supplied with the machine must be inserted at

In order to access the programming menus, press the
programming button located on the push-button card.
At this point the machine goes into Filler menu mode.
The selection buttons are now used for surfing through the
different menus.

NOISE LEVEL

The continuous, weighted equivalent acoustic pressure
level is below 70 dB.

LOADING COFFEE

Open the machine top panel, lift the coffee container lid
and fill the container with coffee, ensuring that the shutter
is fully open (see Fig. 5).

It is advisable to use good quality coffee to avoid
malfunctions to the machine caused by the presence
of impurities.

LOADING INSTANT PRODUCTS

Open the machine top panel and lift the relevant container
lid, fill the single containers with the appropriate products,
taking care not to compress them to prevent packing.
Make sure the products do not contain any clots. Carefully
close the lid, ensuring it is properly secured.

Fig. 6

the time of installation, referring to the selection dose table.
The user controls and information are located on the
outside of the door (see Fig. 4).
The Programming button, to access the machine func­tions, and mixer cleaning button are located inside the
machine on the right-hand side of the push-button card.

Fig. 4

1 - Red float signal
2 - Adjustable cup support
3 - Dispensing spouts
4 - Selection menu
5 - Alphanumeric display
6 - Logo label
7 - Machine top panel
8 - Lock
9 - Liquid waste tray

Fig. 5

1 - Coffee funnel
2 - Coffee conduit
3 - Decaffeinated insertion chute
4 - Grinding adjustment knob
5 - Decaffeinated loading hatch
6 - Coffee container shutter
7 - Coffee canister
8 - Coffee hopper lid
9 - Machine top panel

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SERVICE FUNCTIONS

Some operations, if enabled from the programming menu,
can be carried out directly with the door closed entering a
password (pressing 5 buttons in a sequence) after press­ing button 7 for more than two seconds.

The possible operations are as follows:

- consecutive dispensing of several selections in a jug
(jug facilities);

- free dispensing of a selection;

- keypad operation lock/unlock. With the keypad lock
on, the display will indicate “SUSP. SERVICE”

- Mixer wash. The operation must be carried out daily
and every time the machine is refilled to prevent
clogging of the mixer if any product is accidentally
spilled during refilling.

FILLING THE WATER SUPPLY TANK

For the machine using a water tank located in the base
cabinet or in any case outside the machine, the tank must
be cleaned at least once a week.

Fig. 7

CLEANING THE WASTE TRAYS

The waste trays can be easily removed even with the door
closed (see Fig. 8) permitting quick emptying and clean­ing.
The coffee container capacity is greater than that of the
waste tray (if the support cabinet is not used).
The machine control software indicates on the display that
the maximum number of selections has been reached with
the message “Waste tray full”.
After a few further selections the machine will lock.
The waste tray must be emptied without switching the
machine off (with the door closed), to allow the software
to detect the operation.
With the solid waste tray removed, the machine is still
available for instant drink selections but indicating the
message “Insert waste tray” on the display and the counters
are reset.

Fig. 8

1 - Liquid waste tray detection switch
2 - Solid waste tray detection switch
3 - Solid waste tray
4 - Liquid waste tray

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DISASSEMBLING AND
CLEANING THE MIXERS

When installing the machine, and then at least once a
week or even more frequently according to the use of the
machine and the quality of the inlet water, the mixers and
the dispensing conduits must be thoroughly sanitised
(cleaned and disinfected), to guarantee proper hygiene of
the dispensed products.
The parts to be cleaned are as follows:

- powder deposit drawers, mixer and instant drink
dispensing conduit;

- dispensing spouts;

- spout support tray;

- remove the powder and the water funnels, the feeders,
the powder deposit drawers and the mixer impellers
from the mixers (see Fig. 9);

CLEANING THE COFFEE UNIT

Every time coffee is refilled, or at least once a week, any
powder residue should be removed from the external parts
of the coffee unit, particularly from the coffee funnel area
(see Fig. 9), using a brush or a small vacuum cleaner.
Do not use water soggy wet cloths for cleaning the shelves,
wring them out well before use.

SUSPENDING FROM USE

If for any reason the machine is switched off for a period
exceeding the use-by date of the products, the following
will be necessary:

- completely empty the containers and thoroughly wash
them with the sanitising products used to clean the
mixers;

- completely empty the grinder by dispensing coffee
until the empty condition is indicated.

- completely empty the hydraulic system.

Fig. 10

- in order to remove the water funnel, rotate the green
ring nut anti-clockwise;

pay special attention to closing it fully during
reassembly;

- in order to remove the impellers, block the disk fitted
on the mixer shaft with a finger (see Fig. 10), then
rotate the impeller to undo it.

Fig. 9

1 - Dispensing spouts support tray
2 - Spouts support release button
3 - Funnel securing ring nut
4 - Mixer impeller
5 - Water funnel
6 - Powder deposit drawer
7 - Product funnel
8 - Product conveying dispensing pipette

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Chapter 2

INSTALLATION

Installation and the following maintenance operations
should be carried out with the machine switched on and
therefore by qualified personnel only, who are trained in
the correct use of the machine and informed about the
specific risks of such situation.
The machine is not suitable for outdoor installation, it must
be installed in a dry room where the temperature remains
between 2° C and 32° C.
The machine cannot be installed where water jets are used
for cleaning.

At installation the hydraulic circuits and the parts in
contact with foodstuff should be fully sanitised to
remove any bacteria which might have formed during
storage.

POWER SUPPLY SWITCHES

Main

A main switch is fitted outside the machine, disconnecting
the power from the machine without having to open the
door.

The terminal strip supporting the line cable, the fuses
and the noise suppressor stay energised in any case.

Door

When opening the door a special microswitch disconnects
the power from the machine electrical system.
To energize the system with the open door, simply insert
the special key into the slot (see Fig. 11).

Top panel

Also when opening the machine top panel, a switch
disconnects the power, allowing loading operations in a
safe condition.

The switch on key MUST NOT be left inside the ma­chine, it must be kept by the qualified personnel
trained in the use of the machine.

With the door open, there is no access to energised
parts. Inside the machine, the only parts that stay
energised are those protected by covers and carrying
a plate with the warning “disconnect the power before
removing the protective cover”.

Before removing such covers disconnect the power
supply cable from the grid.

The door can be closed, and therefore the vending ma­chine switched on, only after removing the yellow key from
door switch and closing the machine top panel.

UNPACKING THE VENDING MACHINE

After removing the packing, ensure that the machine is
intact.
If in doubt do not use the machine.

No packing elements (i.e. plastic bags, polystyrene
foam, nails, etc.) should be left within the reach of
children, as they are potentially dangerous.

Packing materials must be disposed of in authorised
containers and the recyclable ones must be recovered by
qualified companies.

Important notice!!

The machine should be positioned on a level surface.
A side module (optional) can be added to the machine to
enhance its performance.

Fig. 11

1 - Door switch
2 - Top panel switch and actuator
3 - Network fuses
4 - Main external switch

Fig. 12

1 - Side module
2 - Gasket

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With some modules it may be necessary to fit a gasket to
seal the space between machine and support counter.
The gasket is supplied separately from the module.
For installation, lay the machine on its back and fit the
gasket (see figure 12) following the installation instructions
supplied with the kit.

CONNECTION TO THE WATER MAINS

Some models can be connected to the drinking water
mains, taking into account law provisions in force in the
country where the machine is installed.
The water pressure must be 7.3 to 123.3 psig (0.5-8.5 bar).
Run some water from the mains until it is clear and without
impurities.
Use a hose (also available as a kit) capable of withstanding
the water mains pressure and suitable for use with food­stuff (min. inside diameter of 6 mm) to connect the water
supply to the union (3/4" gas) of the water inlet solenoid
valve (see Fig. 13).

It is good practice to install the water supply tap
outside the machine in an easily accessible position.

OVERFLOW DEVICE

The water inlet solenoid valve (see Fig. 13) is equipped
with an overflow device which mechanically stops the
water inlet if there is a malfunction in the solenoid valve or
in the boiler water level control device.
To restore normal operation, proceed as follows:

- drain the water contained in the overflow hose;

- shut off the water supply using the tap outside the
machine;

- loosen the nut which secures the solenoid valve
supply hose to relieve the water mains residual pres­sure and then tighten again (see Fig. 13);

- open the tap and switch the machine on.

CONNECTING THE MACHINE TO THE
POWER SUPPLY

The machine is designed to operate under a single-phase
120 V~ voltage and is protected by 15 A fuses.
Before making the connection, ensure that the rating
corresponds to that of the power grid, and more specifi­cally:

- the supply voltage rating must be within the range
recommended for the connection points;

- the main switch should be capable of withstanding the
peak load required, and at the same time ensure
proper omnipolar disconnection from the power grid
with an opening gap of the contacts of at least 3 mm.

The switch, the power outlet and the plug must be
located in an easily accessible position, so that the
cable can be disconnected in the event of interven­tion..

The power supply cable is of the type with a fixed plug. Any
replacement of the power supply cable (see Fig. 14)

should be made by qualified personnel only, using cables
of the type UL SJTO 3x16 AWG.
The electrical safety of the machine is ensured only when
it is correctly earthed according to the safety standards in
force.

This fundamental safety requirement must be duly
verified, and if in doubt the system must be carefully
tested by qualified technicians.

Do not use adapters, multiple sockets and/or exten­sions.

Before switching the machine on, be sure it is correctly
connected to the water mains and the cut-off valve is open.

THE MANUFACTURER DECLINES ALL RESPONSI­BILITY FOR ANY DAMAGE CAUSED BY NON-COM­PLIANCE WITH THE ABOVE MENTIONED SAFETY
RULES.

Fig. 13

1 - Water inlet union (3/4" gas)
2 - Water supply hose
3 - Overflow hose

Fig. 14

1 - Connection terminal strip
2 - Cable clamp
3 - Cable from the mains

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INSTALLING THE PAYMENT SYSTEM

The machine is sold without payment system, there­fore the installer of such a system is responsible for
any damage to the machine or to things and persons
caused by faulty installation.

Payments systems such as validators, “change-giver” and
“cashless” can be installed by using the specific kits.
Payment systems such as “change giver” must be physi­cally housed in the special side module (optional).

WATER SOFTENER UNIT

The machine is sold without water softener.
In the event of connection to very hard water, a water
softener unit should be installed.
The water softener, available as accessory, must be
replaced or regenerated regularly following the directions
from the manufacturer.
Use water softeners with capacity that is adequate to the
effective needs of the machine.
In the event of water supply from the tank, the special
filtering cartridges can be used.
The cartridges must be replaced periodically according to
the water quality and to the instructions from the manufac­turer.

INSERTING THE PRODUCT LABELS

The menu and instruction labels are supplied with the
machine and must be inserted at the time of installation
according to the layout and to the language (see “selection
dose” table).
To access the label insertion slots, completely undo the
two screws at the back of the door and remove the cover.
Disconnect the key-pad cables from the push-button board
and remove the label support, sliding out the tabs from the
slots on the door (see fig. 15). Insert the labels in the
appropriate slots and reassemble everything in the re­verse order.

POWER ON

Before switching the machine on, ensure that the grounds
trays and the container lids are into place.
Each time the machine is switched on, the display shows
the following message:

POWER ON

Confirm?

Press any selection button to continue.
It is possible to program the machine to enable the function
that displays the controls to be performed before starting
the machine, and namely:
Tubing (nozzles etc.)

Mixers
Powder feeder
Coffee shutter
Power on

For all controls the request “Confirm?” is indicated on the
display.
Press any selection button to continue.
The function of presenting the list of preliminary controls
can be enabled (disabled by default) from the program­ming menu.
At the end of the power on cycle, the display indicates the
software version number to which referring for consulting
the programming manual.

The machine can be programmed for displaying, for a few
second, the number of selections made.

Then a boiler control routine is run, wich must be confirmed
by pressing any selection button:

Ready for use

SELECT THE DRINK

Korinto ES

REV 1.0

BOILER CONTROL

Confirm?

After a few seconds the display shows the message:

Fig. 15

1 - Board cover
2 - Fastening screws
3 - Keypad cables
4 - Label support
5 - Label support tabs
6 - Slots for inserting the labels

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© by N&W GLOBAL VENDING SpA 07 06 274 -00

INITIALISING

When the “Initialise” function is displayed the vending
machine can be initialised restoring all default data.
This function should be used the first time the machine is
switched on and in the event of a memory data error or
reprogramming of the board.
All statistic information will be reset.
Press the confirm button “ ” to display the message
“Confirm?”. Press the button “ ” again to display the first
variable parameter to define the machine configuration.
The available options (blinking) can be scrolled with the
“ ” and “ ” buttons, the selection is confirmed with button
“ ” and the next parameter is presented. When pressing
button “ ” after the last parameter the display will show the
message “Working” for a few seconds and the machine is
initialised.
The parameters are as follows:

“Country” Type of doses to be

used for the selections

“Layout” Layout of containers and

selection menu from the
available ones

“Tank” Water supply from the mains

or from a tank

N.B.:When the machine is switched on for the first time or
in any case after initialising, as well as the list of controls
to be performed, also the language used for the messages
on the display is proposed.
The available languages can be scrolled with the “ ” and
“ ” buttons, and the selection is confirmed with button “ ”.
Unless the machine is initialised, the language request is
not made again.
In any case it will be possible to change it through the
specific function in the “Technician” menu.

FILLING THE WATER SYSTEM

If the machine is connected to the water mains, when it is
switched on the conditions of air-break (full or empty),
pump and boiler priming (pressure) are checked.
If required by the conditions, the machine will automati­cally start an installation cycle, and namely:

- the message “Installation” will be shown on the display
for the entire duration of the cycle;

- the water mains solenoid valve is opened or the pump
is started to fill the air-break;

- the milk solenoid valve is opened so that the air may
be bled from the boiler and from the hydraulic system,
and 400 cc. of water filled.

N.B.:If there is no water flow from the mains during the installa­tion cycle, the machine will stop until water is resumed or the
machine is switched off.

IMPORTANT NOTICE!!!

If a considerable amount of air bubbles is formed in the
water system, for example during maintenance, it is pos­sible that an installation cycle is automatically started
when the machine is switched on.

Versions with internal tank
For models with an internal tank, when the machine is

first switched on, the installation procedure MUST BE
carried out manually (see relevant chapter).

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© by N&W GLOBAL VENDING SpA 07 06 274 -00

VARIABLE CHAMBER
COFFEE UNIT

COFFEE DISPENSING CYCLE

When confirming the switch on cycle of the machine, by
pressing a selection button, the coffee unit is rotated
completely twice before the normal cycle, to ensure that
the device is in the correct start position.
When making a coffee based selection, the grinder will run
for the time necessary to fill the brewing chamber with the
coffee dose set via software.

When the ground coffee dose is reached, the ratiomotor
engaged with the handle (11) located outside the assem­bly rotates by 180°, making the brew chamber swing (8)
(see Fig. 16).
The pump is started and, by effect of the water pressure,
the upper piston (5) is lowered enough to close the brewing
chamber and lightly compress the ground coffee.

The dispensing valve opens, allowing the pump to push
the boiler water onto the coffee for the brewing cycle.
At the end of the dispensing cycle, the purge valve opens
and the coffee dose is lightly pressed, permitting the
discharge of residual water through the third way of the
dispensing solenoid valve. The purge solenoid valve opens,
depressurising the upper piston.
By completing the rotation of the ratiomotor (see Fig. 17)
the pistons and the coffee dose are lifted by means of the
swinging lever (5).
At the same time, when the brewing chamber returns to its
vertical position, the scraper on the coffee hopper stops
the used coffee dose and drops it.
The lower piston now returns to the top dead centre.

Fig. 16

1 - Boiler connecting hose
2 - Central quick coupler
3 - Upper piston pressure tube
4 - Side quick coupler
5 - Upper piston
6 - Upper piston gasket
7 - Coffee funnel
8 - Brewing chamber
9 - Lower filter
10 - Swinging lever
11 - Handle

Fig. 17

1 - Upper piston
2 - Lower filter
3 - Brewing chamber
4 - Filter return spring
5 - Swinging lever
6 - Handle