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Korinto
Installation Manual
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Grindmaster Korinto Installation Manual

INSTALLATION, USE AND MAINTENANCE MANUAL
MANUEL D'UTILISATION, INSTALLATION ET ENTRETIEN
Korinto Espresso
UL 120V
EN English Pag. 1 FR Français Pag. 44
DOC. NO. H 274V 00
EDITION 1 07 - 2006
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
OPERA TION 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
© by N&W GLOBAL VENDING SpA 07 06 274 - 00
1
IN CASE OF FAILURE
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
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.
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.
Product code
Model
Type
Operating voltage
Absorbed power
Water mains characteristics
Serial number
Frequency
Current
Boiler data
Fig. 1
© by N&W GLOBAL VENDING SpA 07 06 274 - 00
2
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.
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
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.
© by N&W GLOBAL VENDING SpA 07 06 274 - 00
3
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
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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.
© by N&W GLOBAL VENDING SpA 07 06 274 - 00
4
Chapter 1
LOADING AND CLEANING
All operations requiring the machine to be energized should be carried out EXCLUSIVELY by qualified per­sonnel, informed about the specific risks of such situation.
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.
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.
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
Do not use sprayed water for cleaning the machine.
© by N&W GLOBAL VENDING SpA 07 06 274 -00
5
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.
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
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.
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.
© by N&W GLOBAL VENDING SpA 07 06 274 -00
Fig. 6
6
SERVICE FUNCTIONS
CLEANING THE WASTE TRAYS
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.
Fig. 7
The possible operations are as follows:
- consecutive dispensing of several selections in a jug (jug facilities);
- free dispensing of a selection;
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.
- 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. 8
1 - Liquid waste tray detection switch 2 - Solid waste tray detection switch 3 - Solid waste tray 4 - Liquid waste tray
© by N&W GLOBAL VENDING SpA 07 06 274 -00
7
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);
- 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. 10
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. 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
© by N&W GLOBAL VENDING SpA 07 06 274 -00
8
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.
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.
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).
Fig. 11
1 - Door switch 2 - Top panel switch and actuator 3 - Network fuses 4 - Main external switch
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. 12
1 - Side module 2 - Gasket
© by N&W GLOBAL VENDING SpA 07 06 274 -00
9
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).
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)
Fig. 13
1 - Water inlet union (3/4" gas) 2 - Water supply hose 3 - Overflow hose
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.
Fig. 14
1 - Connection terminal strip 2 - Cable clamp 3 - Cable from the mains
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.
© by N&W GLOBAL VENDING SpA 07 06 274 -00
10
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.
Fig. 15
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.
Korinto ES
REV 1.0
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:
1 - Board cover 2 - Fastening screws 3 - Keypad cables 4 - Label support 5 - Label support tabs 6 - Slots for inserting the labels
© by N&W GLOBAL VENDING SpA 07 06 274 -00
After a few seconds the display shows the message:
11
BOILER CONTROL
Confirm?
Ready for use
SELECT THE DRINK
INITIALISING
FILLING THE WATER SYSTEM
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.
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).
© by N&W GLOBAL VENDING SpA 07 06 274 -00
12
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. 17
1 - Upper piston 2 - Lower filter 3 - Brewing chamber 4 - Filter return spring 5 - Swinging lever 6 - Handle
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
© by N&W GLOBAL VENDING SpA 07 06 274 -00
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