Necta Colibri Espresso, Necta Colibri Instant Maintance Manual

INSTALLATION, USE AND MAINTENANCE MANUAL
DOC. NO. H 228U 00
EDITION 1 09-2003
USA English
Colibrì Espresso
SEMI-AUTOMATIC Instant
Dichiara che la macchina descritta nella targhetta di identificazione, è conforme alle disposizioni legislative delle direttive: 89/392, 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: 89/ 392, 89/336, 73/23 EEC and further amendments and integrations.
Déclare que l’appareil décrit dans la plaque signalétique satisfait aux prescriptions des directives: 89/392, 89/336, 73/ 23 CEE et modifications/intégrations suivantes.
Erklärt, daß das im Typenschild beschriebene Gerät den EWG Richtlinien 89/392, 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: 89/392, 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 CEE 89/392, 89/336 e 73/23 e sucessivas modificações e integrações.
Verklaart dat de op de identificatieplaat beschreven machine overeenstemt met de bepalingen van de EEG richtlijnen 89/392, 89/336 en 73/23 en de daaropvolgende wijzigingen en aanvullingen.
Intygar att maskinen som beskrivs på identifieringsskylten överensstämmer med lagstiftningsföreskrifterna i direktiven: 89/392, 89/336, 73/23 CEE och påföljande och kompletteringar.
Det erklæres herved, at automaten angivet på typeskiltet er i overensstemmelse med direktiverne 89/392, 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 89/392, 89/336, 73/23 med endringer.
Vahvistaa, että arvokyltissä kuvattu laite vastaa EU-direktiivien 89/392, 89/336, 73/23 sekä niihin myöhemmin tehtyjen muutosten määräyksiä.
Valbrembo, 03/05/2001
ANTONIO CAVO
C.E.O
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© by NECTA VENDING SOLUTIONS SpA 09-2003 228 00
TABLE OF CONTENTS
INTRODUCTION PAGE 2
IDENTIFICATION OF THE VENDING MACHINE PAGE 2
IN THE EVENT OF FAILURES PAGE 2
TRANSPORT AND STORAGE PAGE 2
USING THE VENDING MACHINE PAGE 3
POSITIONING THE VENDING MACHINE PAGE 3
WARNING FOR INSTALLATION PAGE 3
PRECAUTIONS IN USING THE MACHINE PAGE 3
WARNING FOR SCRAPPING PAGE 3
TECHNICAL SPECIFICATIONS PAGE 4
POWER CONSUMPTION PAGE 5
ACCESSORIES PAGE 5
INSTALLATION PAGE 5
UNPACKING THE VENDING MACHINE PAGE 5
CONNECTION TO THE POWER SUPPLY PAGE 6
CONNECTION TO THE WATER MAINS PAGE 6
CONTROLS AND INFORMATION PAGE 7
NOISE LEVEL PAGE 7
DOOR SWITCH PAGE 8
INITIALISING PAGE 8
FILLING THE WATER SYSTEM PAGE 8
INSERTING THE LABELS PAGE 8
MAINTENANCE AND DISINFECTION PAGE 9
SANITISING THE MIXERS AND FOODSTUFF CIRCUITS PAGE 9
WASHING THE MIXERS PAGE 10
LOADING PAGE 10
LOADING COFFEE PAGE 10
LOADING INSTANT PRODUCTS PAGE 10
CLEANING THE WATER SUPPLY TANK PAGE 10
CLEANING THE WASTE TRAYS PAGE 10
WEEKLY CLEANING OF COFFEE UNIT PAGE 11
SUSPENDING FROM USE PAGE 11
INSTALLING THE PAYMENT SYSTEM PAGE 11
COFFEE UNIT OPERATION PAGE 12
COFFEE DISPENSING CYCLE PAGE 12
CHECKING AND ADJUSTING THE MACHINE SETTINGS PAGE 12
STANDARD SETTINGS PAGE 13
ADJUSTING THE BREWING CHAMBER VOLUME PAGE 13
ADJUSTING THE GRADE OF GRINDING PAGE 13
ADJUSTING THE COFFEE DOSE PAGE 13
OPERATING MODES PAGE 14
NORMAL OPERATING MODE PAGE 14
MAINTENANCE MODE PAGE 14
FILLING THE CHANGE TUBES PAGE 15
AUTOTEST PAGE 15
EMPTYING THE AIR-BREAK PAGE 15
DISPLAYING THE STATISTICS PAGE 15
PRINTING THE STATISTICS PAGE 16
RESETTING THE STATISTICS PAGE 16
GENERAL COUNTER PAGE 16
PROGRAMMING PAGE 16
DISPLAYING THE EXISTING FAILURES PAGE 17
PROGRAMMING THE WATER AND POWDER DOSES PAGE 18
PROGRAMMING THE PRICES PAGE 18
PROGRAMMING THE PRICES AND THE PUSH-BUTTON STATUS PAGE 18
PROGRAMMING THE BASIC COIN AND THE DECIMAL POINT PAGE 18
PAYMENT SYSTEMS PAGE 18
PROGRAMMING THE VALIDATOR PAGE 19
PROGRAMMING THE MDB DATA PAGE 19
INITIALISING PAGE 20
SETTING THE MACHINE CODE PAGE 20
MACHINE CONFIGURATION PAGE 20
FAST CYCLES PAGE 21
SELECTION COUNTER PAGE 21
SETTING THE PROMOTIONAL MESSAGE PAGE 21
LANGUAGE SELECTION PAGE 21
WHIPPING TIME PAGE 21
PROGRAMMING ACCESS PASSWORD PAGE 21
SPECIAL SALES PAGE 21
SETTING THE CLOCK PAGE 21
AUTOMATIC WASH PAGE 21
SETTING THE TIME BAND PAGE 21
SETTING THE TIME BAND PRICES PAGE 21
CONSECUTIVE SELECTIONS PAGE 22
TEMPERATURE SETTING PAGE 22
DISPLAY PRE-SELECTIONS PAGE 22
DIRECT FUNCTIONS PAGE 22
INSTALLATION PAGE 22
RESETTING THE FAILURES PAGE 22
MAINTENANCE PAGE 22
INTRODUCTION PAGE 22
BREWER UNIT MAINTENANCE PAGE 23
REGENERATION OF THE SOFTENER UNIT PAGE 23
ANNUAL SANITISING PAGE 24
PRINTED BOARD FUNCTIONS AND INDICATOR LAMPS PAGE 24
CONTROL BOARD PAGE 24
PUSH-BUTTON BOARD PAGE 25
HYDRAULIC SYSTEMS PAGE 26
MAINTENANCE MENU PAGE 27
PROGRAMMING MENU PAGE 31
WIRING DIAGRAMS PAGE 38
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IN THE EVENT OF FAILURES
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:
NECTA VENDING SOLUTIONS 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. The vending machines in the Colibrì range are designed to meet a wide spectrum of user needs.
This manual describes all possible machine configu­rations and the related safety and maintenance in­structions.
Non-standard devices will be indicated as “optional”.
IDENTIFICATION OF THE VENDING MACHINE AND ITS CHARACTERISTICS
Each 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
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© by NECTA VENDING SOLUTIONS SpA 09-2003 228 00
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 products like coffee and tea;
- 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.
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 should be placed close to a wall, so that the back panel is at a minimum distance of 4 cm from it and correct ventilation may be ensured. The machine must never be covered with cloth or the like. The machine should be positioned with a maximum inclination of 2°. If necessary provide proper levelling by way of the adjustable feet included.
Important notice!!
Access to the machine interior for maintenance and/or repairs is via the back panel. Therefore the machine is designed to be rotated, thus allowing removal of the back panel.
Installation on the cabinet
The machine can be installed on a table or on any other suitable stand (recommended height is 820). 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
Whenever the machine is to be scrapped, the laws in force regarding environment protection should be strictly ob­served. More specifically:
- ferrous and plastic materials and the like are to be disposed of in authorized areas only;
- insulating materials should be recovered by qualified companies.
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TECHNICAL SPECIFICATIONS
DIMENSIONS
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8333
Height = 25.59"
Height with coffee hopper = 29.13"
Width = 16.14"
Depth = 19.29"
Overall depth with door open = 32.67"
Height of cabinet = 32.28"
Weight
Power supply voltage 120 V~
Power supply frequency 60 Hz
Installed power 1.300 W
PAYMENT SYSTEM
The machine is supplied with all prearrangement for a front validator. Specific kits are provided for the installation of payment systems with Executive, MDB or BDV protocol. The machine can accommodate the “cashless” payment system, while the “change-giver” payment system must be installed in the special support cabinet (optional).
SALES PRICES
A different programmable price can be set for each single selection; the standard setting has the same sales price for all selections.
COIN BOX
Made of plastic with lock as optional accessory.
WATER SUPPLY
From the mains, with a water pressure of 5 to 85 N/cm2. A self-contained water supply kit (tank + accessories) can be installed in the support cabinet (optional).
AVAILABLE ADJUSTMENTS
- Grade of grinding for espresso coffee
- Coffee and water doses by volume
- Time adjustment for instant products
- Temperature via software (see “temperature setting” in the programming menu)
CONTROLS
- Presence of water
- Presence of coffee
- Operating temperature reached
SAFETY DEVICES
- Door switch
- Presence of coffee waste container (Espresso models only)
- 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 Mixers Coffee grinder motor
- Fuse protection for:
Main electrical circuit Board power supply transformer
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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:
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.
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 and are aware of the specific risks of such operations.
The machine must be installed in a dry room with temperature between 2°C and 32°C.
To energize the system with the open door, simply insert the special key into the slot (see Fig. 1).
INSTALLATION
The door can be closed only after removing the key.
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.
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 with a maximum inclination of 2°. If necessary provide proper levelling by way of the adjustable feet included (see Fig. 2).
Fig. 1
1 - Door lock bolt 2 - Door lock 3 - Door switch
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© by NECTA VENDING SOLUTIONS SpA 09-2003 228 00
Fig. 2
1 - Adjustable foot
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.
The power supply cable is of the type with a fixed plug. Any replacement of the power supply cable (see Fig. 3) should be made by qualified personnel only, using cables of the type UL SJT 3x16 AWG. The electrical safety of the machine is ensured only when it is correctly earthed according to the safety standards in force.
Fig. 3
1 - Lift-up cover 2 - Cable clamp 3 - Power supply cable
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.
CONNECTING THE MACHINE TO THE WATER MAINS
The machine must 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 5 to 85 N/cm2 (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. 4).
Fig. 4
1 - Water inlet union (3/4" gas) 2 - Water supply hose 3 - Overflow hose
It is advisable to install the water supply tap outside the machine in an easily accessible position.
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OVERFLOW DEVICE
The water inlet solenoid valve (see Fig. 4) 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. 4);
- open the tap and switch the machine on.
CONTROLS AND INFORMATION
The user controls and information are located on the outside of the door (see Fig. 5). The labels with the selection menu and the operating instructions supplied with the machine must be inserted at the time of installation, referring to the selection dose table. The Programming button, used to access the machine functions, is located on the internal side of the push-button board. Press the button once to set the machine to “Maintenance” mode; press the Programming button twice to set the machine to “Programming” mode. Press selection buttons No. 3 and No. 6 in a short sequence to automatically start filling the machine hy­draulic system.
NOISE LEVEL
The continuous, weighted equivalent acoustic pressure level is below 70 dB.
Fig. 5
1 - Liquid waste tray 2 - Dispensing compartment 3 - Lock 4 - Spaces for product labels 5 - Alphanumeric display 6 - Selection buttons 7 - Prearrangement for front validator 8 - Prearrangement for “cashless” payment systems
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“Layout”
A number of Button/Selection combinations to choose from is provided for each dose type model (the combina­tions available for each layout are indicated in the dose selection table supplied with the machine).
“Tank”
Intended as water supply from a tank. This can be enabled or disabled (water supply from the mains):
FILLING THE WATER SYSTEM
When the machine is switched on the conditions of air­break (full or empty), pump (electrical functioning and water flow) and boiler (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 water supply 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 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).
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).
DOOR SWITCH
When opening the door a special microswitch disconnects the power from the machine electrical system.
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 machine from the power grid.
To energize the system with the open door, simply insert the special key into the slot (see Fig. 6).
Fig. 6
1 - Door lock bolt 2 - Door lock 3 - Door switch
All operations requiring the machine to be energized with the door open should be carried out with the door switch key inserted, and therefore by qualified per­sonnel informed about the specific risks of such situation.
INITIALISING
The machine was designed for different market needs. The software is capable of managing all possible configu­rations.
For this reason, before starting the machine, some parameters must be set.
“Model”
Defining whether the machine is Espresso or Instant.
“Country”
Intended as type of basic doses for the different selections (e.g. strong coffee IT = 40 cc - strong coffee FR = 60 cc). The available “Countries” are: It - Fr - Es - Uk
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MAINTENANCE AND DISINFECTION
According to current safety and health rules and regula­tions, the operator of an automatic vending machine is responsible for the hygiene and the maintenance of the foodstuff circuits, to prevent 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.
It is advisable that specific sanitising agents (such as chlorine-based detergents or similar) 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 any dam­age to persons caused by non-compliance with current health regulations.
Before starting any maintenance operations requiring parts of the unit to be removed, the machine must always be switched off.
SANITISING THE MIXERS AND THE FOODSTUFF CIRCUITS
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;
- coffee dispensing spout;
- sugar chute;
- dispensing compartment;
- remove the powder and the water funnels, the feed­ers, the powder deposit drawers and the mixer wheels from the mixers (see Fig. 7);
- in order to remove the impellers, block the disk fitted on the mixer shaft with a finger (see Fig. 8);
- wash all parts with detergent being sure that all visible residue and product layers are mechanically removed, using a brush if necessary;
Disinfection should be carried out using chlorine-based detergents.
- soak all components for approx. 20 minutes in a container filled with the previously prepared chlorine­based detergent;
- reinstall the feeders and the water funnels;
- reinstall the powder deposit drawers and the powder funnels after thoroughly drying them.
After reinstalling all parts the following is however required:
- add a few drops of the chlorine-based detergent in the mixer;
- using the mixer cleaning function with the door closed, thoroughly rinse all components to ensure that all residue of the detergent solution is removed.
Fig. 7
1 - Powder feeder 2 - Powder funnel 3 - Powder deposit drawer 4 - Water funnel 5 - Feeder 6 - Mixer impeller
Fig. 8
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MIXER CLEANING
The mixer must cleaned daily and every time the machine is refilled to prevent clogging of the mixer if any product is accidentally spilled during refilling. It must be cleaned also after the mixer sanitising opera­tions, as described in the relevant chapter. The mixer is cleaned with the door closed, doing as follows:
- press button 8 for 2 seconds The display will show the request to enter the pass­word;
- press in a quick succession buttons 4 4 8 8 to start cleaning.
LOADING
LOADING COFFEE
The cover can be opened only with the door open. Lift the cover and fill the hopper with coffee, ensuring that the shutter is fully open (see Fig. 9).
Fig. 9
1 - Coffee hopper shutter 2 - Coffee hopper 3 - Milk container 4 - French vanilla container 5 - Powder chute 6 - Powder feeder
Fig. 10
1 - Coffee waste tray 2 - Dispensing compartment drip tray
LOADING INSTANT PRODUCTS
The covers can be opened only with the door open. After lifting their cover, 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.
CLEANING THE WATER SUPPLY TANK
(OPTIONAL)
For machines equipped with a water tank inside the support cabinet, such tank must be sanitised at least once a week with the chlorine-based detergent used for the mixers.
CLEANING THE WASTE TRAYS
The waste trays can be easily removed even with the door closed (see Fig. 10) 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 coffee 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, to allow the software to detect the operation.
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With the coffee waste tray removed, the machine is still available for instant drink selections but indicating the message “Insert waste tray” on the display. The selection counters are reset with the door closed, doing as follows:
- press button 8 for 2 seconds The display will show the request to enter the pass­word;
- press in a quick succession buttons 4231 to reset the counters.
WEEKLY CLEANING OF 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. 15).
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 chlorine-based detergents used to clean the mixers;
- completely empty the coffee doser unit by dispensing coffee until the empty condition is indicated.
- completely empty the water system.
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.
The machine is electrically pre-set for the installation of MDB payment systems, and namely:
- coin acceptor or “validator”
- change-giver coin mechanisms or “changer”
- bill accepter or “bill validator”
- key / magnetic card reader or “cashless”
that can be used in various combinations.
Compatibility for housing the payment systems must be ascertained by and under the sole responsibility of the installer.
When switched on, the machine goes through a control routine to determine which payment systems are actually installed and therefore configure the correct system.
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COFFEE UNIT OPERATION
COFFEE DISPENSING CYCLE
After each time the machine is switched on, upon the first espresso coffee based selection, the coffee unit is rotated completely before the normal cycle, too ensure that the device is in the correct start position. When selecting coffee, the grinder is started and will continue until the coffee doser chamber is full (see Fig.
14). When the doser unit is full, the ground coffee dose is released into the coffee unit. The coffee falls into the vertical brewing chamber (1) (see Fig. 11).
The ratiomotor handle engaged with the disk (2) located outside of the assembly rotates by 180°, making the brewing chamber swing and lowering the upper piston (3). Due to the water pressure, the pre-brewing spring (5) sinks and the lower piston (4) goes down 4 mm, thus forming a water cushion which allows an even use of the coffee dose. At the end of the dispensing cycle and during a pause of 3 seconds, the pre-brewing spring (5) will discharge the water through the third way of the dispensing solenoid valve, lightly pressing the used coffee dose. By completing its rotation, the ratiomotor makes the swinging lever (6) lift the pistons and the tea dose. 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 bottom dead centre.
Fig. 11
1 - Brewing chamber 2 - External disk 3 - Upper piston 4 - Lower piston 5 - Pre-brewing spring 6 - Swinging lever
CHECKING AND ADJUSTING THE MACHINE SETTINGS
To get the best results from the product used, the following should be checked:
For coffee
That the used coffee dose is lightly compressed and
damp.
The grade of grinding of ground coffee.
The dose weight of ground coffee.
The dispensing temperature.
The water dose.
For instant products
The dose weight of the instant products.
The drink temperature.
The water dose.
Should the standard settings need to be changed, proceed as indicated in the next sections of this manual. The weight of instant products, the water dose and temperature are directly controlled by the microproces­sor. To adjust them it is therefore necessary to follow the programming procedures.
Fig. 12
1 - Brewing chamber 2 - External disk 3 - Upper piston 4 - Lower piston 5 - Pre-brewing spring 6 - Swinging lever
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