Necta Brio 250 Installation, Use And Maintenance Manual

Marca: Necta

Modello: Brio 250

Tipo: Installation, Use And Maintenance Manual

INSTALLATION, USE AND MAINTENANCE MANUAL

UK English

DOC. NO. H 162U 00

EDITION 1 03 01

Brio 250 Espresso

Espresso Plus

MDB Protocol

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:

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

TABLE OF CONTENTS

INTRODUCTION PAGE 2

IDENTIFICATION OF THE VENDING MACHINE PAGE 2

IN CASE OF FAILURE PAGE 2

TRANSPORT AND STORAGE PAGE 2

USING THE VENDING MACHINE 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 SPECIFICATIONS PAGE 3

POWER CONSUMPTION PAGE 4

ACCESSORIES PAGE 4

INSTALLATION PAGE 5

UNPACKING THE VENDING MACHINE PAGE 5

INSERTING THE LABELS PAGE 5

CONNECTING TO THE WATER MAINS PAGE 5

CONNECTING TO THE POWER SUPPLY PAGE 6

CONTROLS AND INFORMATION PAGE 6

DOOR SWITCH PAGE 6

FILLING THE WATER SYSTEM PAGE 7

INSTALLING THE PAYMENT SYSTEM PAGE 7

MAINTENANCE AND DISINFECTION PAGE 7

SANITISING THE MIXERS

AND THE FOODSTUFF CIRCUITS PAGE 7

LOADING PAGE 8

LOADING CUPS PAGE 8

LOADING COFFEE PAGE 9

LOADING PRODUCTS AND SUGAR PAGE 9

LOADING STIRRERS PAGE 9

CLEANING THE LIQUID WASTE TRAY PAGE 9

CLEANING THE CUP SHIFTING ARM PAGE 9

CLEANING THE SUGAR DISPENSER PAGE 10

CLEANING THE BREWER UNIT PAGE 10

SUSPENDING FROM USE PAGE 10

OPERATION OF THE BREWER UNIT PAGE 11

COFFEE DISPENSING CYCLE PAGE 11

CHECKING AND ADJUSTING

THE MACHINE SETTINGS PAGE 11

STANDARD SETTINGS PAGE 12

ADJUSTING THE BREWING CHAMBER VOLUMEPAGE 12

ADJUSTING THE GRADE OF GRINDING PAGE 12

ADJUSTING THE COFFEE DOSE PAGE 12

WATER TEMPERATURE CONTROL PAGE 12

MAINTENANCE PAGE 13

INTRODUCTION PAGE 13

BREWER UNIT MAINTENANCE PAGE 13

ANNUAL SANITISING PAGE 14

OPERATING MODES PAGE 14

NORMAL OPERATING MODE PAGE 14

MAINTENANCE MODE PAGE 15

PROGRAMMING PAGE 16

DISPLAYING THE PRESENT FAILURES PAGE 16

SETTING THE WATER AND POWDER DOSES PAGE 17

SETTING THE PRICES PAGE 17

SETTING THE PRICES

AND THE SELECTION STATUS PAGE 17

SETTING THE BASIC UNIT

AND THE DECIMAL POINT PAGE 18

INITIALISING PAGE 18

SETTING THE MACHINE CODE PAGE 18

MACHINE CONFIGURATION PAGE 18

SELECTION COUNTER PAGE 18

PROGRAMMING THE MDB DATA PAGE 19

CONSECUTIVE SELECTIONS PAGE 19

PRE-GRINDING PAGE 19

SETTING THE CLOCK PAGE 19

AUTOMATIC WASH PAGE 19

SETTING THE TIME BANDS PAGE 19

SETTING THE TIME BAND PRICES PAGE 19

DIRECT FUNCTIONS PAGE 20

RESETTING THE FAILURES PAGE 20

INSTALLATION PAGE 20

RESETTING THE STATISTICS PAGE 20

PRINTING THE STATISTICS PAGE 20

DISPLAYING THE STATISTICS PAGE 20

PRINTED BOARD FUNCTIONS

AND INDICATOR LIGHTS PAGE 21

CONTROL BOARD PAGE 21

PUSH-BUTTON BOARD PAGE 21

CONTROL BOARD CONFIGURATION PAGE 21

MODEL CONFIGURATION PAGE 22

STIRRER DISPENSER CONFIGURATION PAGE 22

FREE-VEND CONFIGURATION PAGE 22

HYDRAULIC SYSTEM PAGE 23

PROGRAMMING MENU SUMMARY PAGE 24

WIRING DIAGRAM PAGE 33

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 from the side which is clearly indicated by the

symbol on the packing.

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.

It is important not to stack machines on top of each other

and always maintain the vertical position as indicated by

the arrows on the packing.

USING THE VENDING MACHINES OF HOT

DRINKS IN OPEN CONTAINERS

(e.g.: plastic cups, ceramic cups, jugs)

The vending machines of drinks in open containers should

be used only to sell and dispense drinks obtained by:

- brewing products like coffee and tea;

- reconstituting instant and lyophilized products;

These products should be declared by the manufacturer

as "suitable for automatic vending" in open containers.

The dispensed products should be consumed imme-

diately. Under no circumstances should they be pre-

served and/or packed for later consumption.

Any other use is unsuitable and thus potentially dangerous.

INTRODUCTION

This technical documentation is part and parcel of the

vending machine and must always follow the machine

in case it is moved or ownership is transferred, so as

to permit consultation by different operators.

Before installing and using the machine, it is first necessary

to carefully read and understand the instructions contained

in this manual, as they offer important hints on safe

installation, use and maintenance.

IDENTIFICATION OF THE VENDING

MACHINE AND ITS CHARACTERISTICS

Every machine is identified by its own serial number,

indicated on the data plate attached inside the cabinet on

the right-hand side.

This plate (see Figure) 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.

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, then

contact the following:

NECTA VENDING SOLUTIONS SpA

Via Roma 24

24030 Valbrembo

Italy - Tel. +39 - 035606111

Water mains characteristics

Absorbed power

Operating voltage

Model

Product code

Boiler data

Current

Frequency

Serial number

Type

Fig. 1

POSITIONING THE VENDING MACHINE

The vending machine is not suitable for outdoor installa-

tion. It must be installed in a dry room where the tempera-

ture is 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 incli-

nation of 2°.

If necessary provide proper levelling by way of the adjust-

able feet included.

Important notice!!

Access to the machine interior for maintenance and/or

repairs is via the back panel.

Therefore, provisions should be made for the machine to

be rotated, thus allowing removal of the back panel.

Positioning the machine on a cabinet

The machine can be installed on a table or on any other

suitable stand (recommended height is 820 mm).

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 mainte-

nance 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 vending machine and its conform-

ity with the rules and regulations in force for its

relevant systems must be checked by qualified per-

sonnel at least once a year.

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 ob-

served. 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.

TECHNICAL SPECIFICATIONS

DIMENSIONS

Height 750 mm

Width 540 mm

Depth 550 mm

Height of cabinet 820 mm

Weight 55 Kg

Power supply voltage 120 V~

Power supply frequency 60 Hz

Installed power 1.400 W

CUP DISPENSER

Suitable for cups with a rim diameter of 73-74 mm. with a

capacity of approximately 250 cups.

COIN MECHANISM

The machine is supplied with provisions for the installation

of payment systems with MDB protocol.

Fig. 2

SALES PRICES

A different programmable price can be set for each selec-

tion.

The standard setting has the same 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.

AVAILABLE ADJUSTMENTS

Grade of grinding, water doses for coffee by volume.

Time adjustment for instant product and water doses.

Temperature control

Factory set on the correct operating temperature.

A trimmer located on the control board allows small adjust-

ments (as necessary).

CONTROL DEVICES

- Presence of cups

- Presence of water

- Presence of brewer unit

- Liquid waste container full

- Operating temperature reached

SAFETY DEVICES

- Door switch

- Presence of liquid waste container

- Manual-reset boiler safety thermostat

- Air-break float jamming

- Overflow solenoid valve

- Liquid waste container float

- Time protection for:

Pump

Brewer unit ratiomotor

- Overheating protection for:

Doser units

Brewer unit ratiomotor

Magnets

Pump

Electric mixers

- Fuse protection for:

Electronic card power supply transformer

Executive power supply transformer

CAPACITY OF CONTAINERS

Coffee beans 1.2 Kg

Decaffeinated coffee 0.7 Kg

Sugar 1.9 Kg

Powdered milk (standard) 0.8 Kg

Powdered milk (plus) 1.0 Kg

French vanilla 1.9 Kg

Chocolate 1.5 Kg

Stirrers (N.) 245

POWER CONSUMPTION

The machine power consumption depends on many fac-

tors, such as the temperature and ventilation of the room

where it is installed, the inlet water and boiler temperature,

etc.

Under average conditions, and namely:

- ambient temperature: 22° C

- boiler temperature: 93° C

- inlet water temperature: 18° C

- average water dose per selection: 93 cc

the following power consumption resulted:

- to reach operating temperature 53 Wh

- for each hour of stand-by 110 Wh

- for each selection (average) 7.65 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 change its performance:

The assembly kits are supplied with their own installation

and test instructions, which must be strictly observed to

ensure the machine's safety.

Installation and the following testing operations, must

be carried out only by qualified personnel who have

the specific knowledge of the machine functioning

from a point of view of both electrical safety and health

regulations.

1 - Water inlet union (3/4" gas)

2 - Water supply hose

3 - Overflow hose

Fig. 4

Fig. 3

1 - Adjustable foot

INSTALLATION

Installation and the following maintenance operations

must be carried out by qualified personnel only, trained

in the correct use of the machine and informed on the

specific risks of such operations.

The machine must be installed in a dry room, where

the temperature stays always between 2° C and 32° C.

At installation it is necessary to completely sanitise

the hydraulic system and all parts in contact with food,

in order to eliminate any possible bacteria formed

during storage.

UNPACKING THE VENDING MACHINE

After removing the packing, check that the machine is not

damaged.

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 authorized areas

only, and all recyclable materials must be recovered by

specialised companies.

Important notice!!

The machine should be positioned with a maximum incli-

nation of 2°.

If necessary provide proper levelling by way of the adjust-

able feet included (see Fig. 3).

INSERTING THE LABELS

The menu and instruction labels, as well as the self-

adhesive labels to identify the product containers, are

supplied with the machine and must be inserted or at-

tached at the time of installation (see "selection dose"

table).

CONNECTING THE MACHINE

TO THE WATER MAINS

The machine must be connected to the drinking water

mains.

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 food-

stuff (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).

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. 4) is equipped with

an overflow device mechanically preventing the water from

flowing in, if there is a malfunction in the solenoid valve

itself or in the control device of the boiler water level.

To restore normal operation, proceed as follows:

- drain the water contained in the overflow pipe;

- shut off the water supply tap outside the machine;

- loosen the union which secures the solenoid valve supply

tube to relieve the water mains residual pressure and

then tighten again (see Fig. 4);

- 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

voltage - 120 V~ 60 Hz - and is protected by 15 A fuses.

Before making the connection make sure that the ratings

correspond to those of the power grid, and more specifi-

cally:

- the supply voltage rating should be within the limits

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 main switch, the power outlet and the plug should

be located within easy reach.

The electrical safety of the machine is ensured only when

it is correctly and efficiently 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.

The power cable is of the type fitted with a fixed plug.

Any replacement (see Fig. 5) should be done by qualified

personnel only, using exclusively cables of the type UL

SJT 3x16 AWG.

CONTROLS AND INFORMATION

All user controls and information are located on the exter-

nal side of the door (see Fig. 6).

The labels with the selection menu and the instructions

supplied with the machine must be inserted at the time of

installation, referring to the selection dose table.

Fig. 5

1 - Lift cover

2 - Cable clamp

3 - Cable from grid

Do not use adapters, multiple sockets and/or exten-

sions.

THE MANUFACTURER DECLINES ALL RESPONSI-

BILITY FOR ANY DAMAGE CAUSED BY NONCOMPLI-

ANCE WITH THE ABOVE MENTIONED SAFETY RULES.

Fig. 6

1 - Prearrangement for payment systems

2 - Spaces for product labels

3 - Dispensing compartment

4 - Liquid waste tray

5 - Coin slot

6 - "Exact amount" warning light

7 - Coin return button

8 - Instruction labels

9 - Alphanumeric display

10 - Available selection menu

11 - Jug facilities / free vend key

12 - Prearrangement for front validator and/or labels

13 - Coin return compartment

The Programming button, used to access the machine

functions, is located on the internal side of the push-button

board.

Press the Programming button twice to access the "Pro-

gramming" mode.

Press selection button No. 5 to automatically start filling the

machine water system.

DOOR SWITCH

When opening the door a special switch disconnects the

power from the machine electrical system,

except from the terminal board supporting the line

cable and from the fuse box. Before removing the

cover from these parts (marked by a special plate) it is

necessary to disconnect the external switch.

To energize the system with the door open, simply insert

the special key into the slot (see Fig. 7).

All operations requiring the machine to be energized

and the door open must be carried out with the door

switch key inserted, and therefore by qualified per-

sonnel ONLY, informed about the specific risks of

such situation.

The door can be closed only after removing the key.

Do not leave the machine unattended with the key

inserted!

FILLING THE WATER SYSTEM

When switching the machine on, if the air-break signals no

water for more than 10 seconds, the machine will automati-

cally start an installation cycle, and namely:

- the display will show "Installation" for the entire duration

of the cycle;

- the water mains solenoid valve is opened or the water

supply pump is started;

- the air-break is filled;

- an instant product solenoid valve is opened so that air

may be bled from the boiler and 600 cc. of water is filled.

N.B.: If there is no water flow during the installation cycle,

the machine will lock until the water is resumed or the

machine is switched off.

IMPORTANT NOTICE!!!

This operation must be carried out manually in ALL

VERSIONS after any maintenance requiring the boiler

to be emptied but not the air-break.

Fig. 7

1 - Door switch

2 - Mechanical counter

3 - Grid fuses

INSTALLING THE PAYMENT SYSTEM

The machine is sold without payment system, there-

fore 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 has all electrical prearrangements for the

installation of MDB payment systems, and namely:

- coin accepter or "validator"

- change-giver coin mechanism or "changer"

- bill accepter or "bill validator"

- key/magnetic card reader or "cashless"

that can be used in various combinations.

Compatibility for the housing of the payment systems

must be checked by the installer under his own re-

sponsibility.

When switched on, the machine goes through a routine

check to determine which payment systems are actually

installed and that consequently will be configured.

MAINTENANCE AND DISINFECTION

According to current safety rules and health regulations,

the operator of automatic vending machines 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 dam-

age resulting from non-compliance with the above instruc-

tions or caused by the use of strong or toxic chemicals.

Always disconnect the machine from the power sup-

ply before starting any maintenance operations re-

quiring parts of the unit to be removed.

SANITISING THE MIXERS

AND 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 instant drink dispensing conduits must be thoroughly

disinfected, to guarantee proper hygiene of the dispensed

products.

The parts to be cleaned are:

- powder deposit drawers, mixer and instant drink dispens-

ing conduit;

- coffee dispensing spout;

- sugar chute;

- dispensing compartment.

Fig. 9

- remove the powder and the water funnels, the feeders,

the powder deposit drawers and the mixer rotors from the

mixers (see Fig. 8);

- in order to remove the mixer rotors, with a finger block the

disk fitted on the mixer shaft;

- wash all parts with detergent being sure that all visible

residue and product layers are mechanically removed,

using a brush if necessary.

Fig. 8

1 - Drawer cover

2 - Powder deposit drawer

3 - Powder funnel

4 - Water funnel

5 - Feeder

6 - Mixer rotor

Disinfection should be carried out using chlorine-based

detergents.

- soak all components for approx. 20 minutes in a container

filled with the previously prepared chlorine-based deter-

gent;

- 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:

- access "Maintenance" mode to clean the mixer (see

relevant paragraph) and add a few drops of the chlorine-

based detergent in the various funnels.

- After disinfection, thoroughly rinse all components to

ensure that all residue of the solution is removed.

Fig. 10

1 - Container hatch

2 - Cup release springs

3 - Container lid

4 - Lid locking notch

LOADING CUPS

In order to load the machine with cups do as follows:

- disconnect the electricity from the machine;

- release the cup container, pushing the catch lever out-

wards, and tilt it forward;

- ensure that the column rotation knob has the lid locking

notch lining up with the opening on the lid itself (if the

dispenser is empty the positioning will be automatic);

- then, lift the knob and manually rotate the central stacker

clockwise;

- lift the container lid;

- lower the cup container hatch;

- fill the columns with cups ensuring that they are not

forced inside each other;

- the central column must be filled last;

- close the machine and make a test selection.

LOADING AND CLEANING

5 - Column rotation knob

6 - Central stacker

7 - Container catch lever

8 - Cup release button

LOADING COFFEE

Lift the lid and fill the hopper with coffee, ensuring that the

shutter is fully open (see Fig. 11).

Fig. 11

1 - Lid

2 - Coffee hopper

3 - Shutter

LOADING PRODUCTS AND SUGAR

After lifting their cover, fill each container with the appropri-

ate product, taking care not to compress it to prevent

packing. Make sure the products do not contain any clots.

LOADING STIRRERS

Remove the stirrer weight and insert the stirrers to be

loaded. Remove the paper strip, ensuring that the stirrers

are all placed horizontally.

Replace the stirrer weight.

The stirrers must be burr free and not curved.

CLEANING THE LIQUID WASTE TRAY

The liquid waste tray can be removed easily for emptying

and cleaning.

If the special pins fitted on the container cover are removed

and inserted into the special holes (see Fig. 12), the tray

can be removed only with door open.

For safety reasons, when removing the tray a special

switch installed on the left-hand side will cut off the power

supply from the machine.

Fig. 12

1 - Tray locking holes

2 - Pins

1 - Knurled nut

2 - Spacer washer

3 - Cup shifting arm

Fig. 13

CLEANING THE CUP SHIFTING ARM

The cup shifting arm must be periodically removed and

cleaned. To be able to remove it, completely undo the

knurled nut (see Fig. 13). When reinstalling ensure that the

spacer washer is correctly fitted.

1 - Sugar dispensing spout

2 - Pin

3 - Flexible lever

4 - Return spring

Fig. 14

CLEANING THE SUGAR DISPENSER

For models with sugar dispensed directly into the cup,

periodically the sugar dispensing system must be cleaned

using hot water (see Fig. 14) proceeding as follows:

- release the return spring;

- lift the flexible lever to free the pin

- remove the pin and the dispensing spout;

- after cleaning, reinstall all parts in the reverse order.

WEEKLY CLEANING OF BREWER UNIT

At every refill, or at least once a week, any powder residue

should be removed from the external parts of the brewer

unit, especially from the coffee funnel area (see Fig. 19).

SUSPENDING FROM USE

If for any reason the machine is to be 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 same 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 using the special

clamps.

Fig. 15

1 - Brewing chamber

2 - External disk

3 - Upper piston

4 - Lower piston

5 - Pre-brewing spring

6 - Swinging lever

Fig. 16

1 - Brewing chamber

2 - External disk

3 - Upper piston

4 - Lower piston

5 - Pre-brewing spring

6 - Swinging lever

OPERATION OF THE COFFEE UNIT

COFFEE DISPENSING CYCLE

When selecting coffee, the grinder is started and will

continue until the coffee doser chamber is full (see Fig. 18).

When the doser unit is full, the ground coffee dose is

released into the coffee unit.

The coffee falls into the vertical brew chamber (1) (see Fig.

15).

The ratiomotor handle engaged with the disk (2) located

outside of the unit rotates by 180°, causing the brew

chamber to swing and lowering the upper piston (3) (see

Fig. 16).

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 swing-

ing lever (6) lift the pistons and the coffee dose.

At the same time, when the brew 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.

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 coffee.

The dose in weight of ground coffee.

The dispensing temperature.

The water dose.

For instant products

The dose in weight of the instant products.

The drink temperature.

The water dose.

Should the standard settings be varied, proceed as indi-

cated in the next sections of this manual.

The weight of the 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.

STANDARD SETTINGS

The vending machine is supplied with the following set-

tings:

- tea temperature (at the spout) approx. 85÷89° C;

- instant product temperature (at the spout) approx. 75° C;

- operating pressure 4 bar max.

ADJUSTING THE BREWING

CHAMBER VOLUME

When the upper piston is correctly positioned, the coffee

unit can operate with coffee doses of 5.5 to 8.5 g.

To change the piston position (see Fig. 17) do as follows:

- remove the snap ring from its seat;

- place the piston in the appropriate adjusting notches:

.less deep notches for 5.5 to 7.5 g doses;

.deeper notches for 6.5 to 8.5 g doses.

ADJUSTING THE GRADE OF GRINDING

When a variation in the grade of grinding is desired, turn

the relevant adjusting knob on the grinder (see Fig. 18)

and more specifically:

- turn the knob anticlockwise for coarser grinding;

- turn the knob clockwise for finer grinding.

For optimum results, it is advisable to vary the grade of

grinding with the coffee grinder motor running.

Fig. 17

1 - Snap ring

2 - Upper piston

3 - Reference fins

Fig. 18

1 - Coffee grinder

2 - Grinding adjusting knob

3 - Dose regulator

4 - Dose adjusting lever

5 - Reference notches

N.B.: After adjustment of the grade of grinding, at least

2 test selections must be performed in order to check

the new grade of the ground coffee:

the finer the grade of grinding the longer the time neces-

sary for dispensing the coffee and vice versa.

ADJUSTING THE COFFEE DOSE

The dose adjusting lever can be positioned in one of the 6

reference notches bearing in mind that:

- the dose is increased by lifting the lever:

- the dose is reduced by lowering the lever:

- every notch changes the dose by approx. 0.25 g.

In addition, when the lever is fully rotated upwards, the

ratchet can be released from the groove in the dose

regulator (see Fig. 15) and replaced into a different groove

to change the average dose setting to:

- low 6 g. ± 0.5

- medium 7 g. ± 0.5

- high 8 g. ± 0.5

To take the dose just remove the coffee unit and press

button "2" from of the "maintenance" menu (see relevant

section).

Important notice!!!

To refit the coffee unit, pay special attention to the

piston position. Reference notches on the external

disk and on the unit case should match (see Fig. 19).

WATER TEMPERATURE CONTROL

If requiring to change the boiler temperature, adjust the

special trimmer (see Fig. 22) keeping in mind that:

- tightening will increase the temperature;

- loosening will decrease the temperature;

- the temperature varies by approx. 1° C every 2 turns.

MAINTENANCE

Important notice!!

Access to the machine interior for maintenance and/or

repairs is via the back panel.

Therefore, provisions must be made for the machine to be

rotated, thus allowing removal of the back panel.

The integrity of the vending machine and its conform-

ity with the rules and regulations in force for its

relevant systems must be checked by qualified per-

sonnel at least once a year.

Switch the machine off before any maintenance op-

erations which require removal of components.

The following operations 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.

INTRODUCTION

To ensure perfect operation for a long period, the machine

must be subjected to regular maintenance.

The following sections contain the procedures and the

maintenance schedule, which are only a general indica-

tion, as they greatly depend on the operating conditions

(e.g. water hardness, environmental humidity and tem-

perature, type of product used, etc.).

The procedures described in this chapter are not exhaus-

tive of all maintenance operations to be carried out.

More complex operations (e.g. boiler descaling) should be

carried out by qualified technicians only having specific

knowledge of the machine.

To prevent oxidation or the action of chemical agents, the

stainless steel and varnished surfaces should be kept

clean by using mild detergents (solvents must not be

used).

Never use water jets to clean the machine.

BREWER UNIT MAINTENANCE

Every 10,000 selections or every 6 months some mainte-

nance to the brewer unit must be carried out.

Maintenance is carried out as follows:

- remove the boiler teflon hose connection from the upper

piston, paying attention not to lose the seal (see Fig. 18);

- undo the knob securing the unit to the bracket;

- remove the brewer unit.

Removing the upper filter

- Take the snap ring out of its seat;

- remove the piston from the crosspiece;

- remove the filter and the piston seal.

Removing the lower filter

- Loosen screws A and B enough to release the coffee

funnel (see Fig. 18);

- remove the lower piston snap ring;

- take the piston out of brewing chamber and remove the

filter.

Soak all components removed from the unit in a solution of

boiling hot water and coffee machine detergent for approx.

20 minutes.

Thoroughly rinse and dry all parts, then reinstall them in the

reverse order of disassembly, taking particular care that:

- the piston is positioned in the correct notch for the coffee

dose used (see relevant section);

- the two reference notches match and that the coffee unit

is inserted.

Important notice!!!

Check that the handle pin of the ratiomotor is correctly

engaged in its seat.

Fig. 19

1 - Coffee funnel

2 - Boiler connecting hose

3 - Unit securing knob

4 - Upper piston snap ring

5 - Lower piston snap ring

6 - Reference notches

7 - Ratiomotor handle pin

ANNUAL SANITISING

At least once a year, or more frequently according to the

use of the machine and the quality of the inlet water, the

entire foodstuff circuit system must be cleaned and sani-

tised in the following way:

- all parts of the hydraulic system in contact with food,

including the hoses, must be removed from the unit and

fully disassembled;

- wash all components with detergents, ensuring that all

visible residue and product films are mechanically re-

moved using brushes or similar tools, if necessary;

- all components must be soaked in a sanitising solution for

at least 20 minutes;

- the machine internal surfaces are to be cleaned with the

same sanitising solution;

- Thoroughly rinse and then reinstall the parts.

Before restarting the unit, the same sanitising proce-

dure described in section "Sanitising the foodstuff

circuits and the mixers" should be repeated with the

components reassembled.

OPERATING MODES

Three different operating modes are provided for the

machine, accordingly the buttons may have different func-

tions based on the preset mode of the buttons.

The available operating modes are as follows:

DISPLAY FUNCTIONS

Normal operating mode

"Ready for use" coins accepted

products dispensed

Maintenance mode

"Maintenance" test dispensing

machine maintenance

Programming mode

"Programming" programming

NORMAL OPERATING MODE

When switching the machine on the message "Starting" is

displayed for a few seconds, after which the machine goes

into normal operating mode.

The massages displayed according to the current opera-

tion are as follows:

DISPLAY FUNCTION

"Ready for use" Machine ready.

"Price:...." Price display

selection made

"Credit:....." Displaying the amount of credit

inserted

"Out of Service" Machine out of service

"Drink in Process" Preparation of drink

"Temperature" Wait time before reaching

the operating temperature

"Installation" Installation under way

"Sel. not avail." Selection disabled

"Coffee sel. out" For espresso models only

Brewer unit out of service

"Empty tray" Number of coffee cycles reached

"Take the drink" Drink ready

"Only Dek available" Coffee bean hopper empty

PRE-SELECTIONS

When pressing a pre-selection button for sugar, the mes-

sages "No Sugar" or "Extra sugar" are displayed for a few

seconds.

For models with decaffeinated coffee, the same function is

performed with a single button pressed in sequence. The

second button pre-selects the use of decaffeinated coffee

for the different selections:

BREWING CYCLE COUNTER

When the machine is used without support cabinet, an

electronic counter that blocks the dispensing of brew

product (after 150 cycles) must be set to prevent the small

size internal tray from overflowing.

When the preset number of selection is reached the brew

product selections are blocked.

To reset the counter, after cleaning the tray, button "1"

must be kept pressed for two seconds within one minute

from switching the machine on.

JUG FACILITIES

To be able fill a jug rotate the key a quarter of a turn

clockwise, the machine will then be set to dispense 5

consecutive free selections without accessories.

The selection sequence can be stopped by turning the key

back to central position before the end of a selection.

The number of residual available selections will be shown

on the display at the beginning of each selection.

MAINTENANCE MODE

When the programming button located on the internal side

of the push-button board (see Fig. 20) is pressed once the

machine will go to "Maintenance" mode.

The message "Maintenance" is displayed for approx. two

seconds and then the first option of the "Statistics" menu,

allowing the following functions:

"Complete Sel." Dispensing test including

cup, sugar and stirrer

"Powder only" Dispensing powder only

"Water only" Dispensing water only

"No accessories" Dispensing test without

cup, sugar and stirrer

"Washing" Rotating the coffee unit

Dispensing sugar

Dispensing extra sugar

Washing

"Filling tubes" Manual filling/releasing

change tubes

For complete or partial dispensing tests each button is

assigned a selection (see the dose selection table).

N.B. For Espresso coffee based selections, only the

additions are dispensed with the partial dispensing of

powder and water; if a selection requires no additions

the message "Sel. not avail." will be displayed.

When the display shows "Washing" the buttons are as-

signed the following functions:

The function cannot be accessed when in program-

ming mode. In that case it will be necessary to switch

the machine off and on again.

previous function

next function

wash mixer

operate brewer unit

dispense sugar

dispense extra sugar

not used

release tube "a"

release tube "b"

release tube "c"

release tube "d"

not used

exit function /fill tubes

Button "2" is used to operate the coffee unit if this is

connected to the electrical system, and it releases a coffee

dose if the unit is disconnected.

With the display indicating the function "Filling tubes", to

manually fill the change tubes do as follows:

- press any button to enable filling; the display will indicate

the message Credit: —— , which is the value of money

available in the change tubes;

- insert the desired coin in the selector (the display will

indicate the value of money available in the change

tubes;)

- press button "8" to end the operation.

When the function "filling tubes" is active, the buttons take

on the following functions:

PROGRAMMING

When pressing the programming button located on the

push-button card internal side twice (see Fig. 20), the

machine goes into "Programming" mode; a password is

requested, corresponding to the keys sequence "8", "6",

"5" and "7".

After inserting the password the display shows the mes-

sage "Programming" for approx. 2 seconds, and after this

the first option of the programming menu appears on the

display enabling the following functions:

"Present failures" reading present failures

"Water dose" water dose setting

"Powd. dose" powder dose setting

"Set Prices" price setting

"Set Prices/Select" price/selection combination

enable/disable selections

"Basic unit / DP" basic coin value setting

and decimal point position

"Initialising" RAM initialising

"Machine code" setting the machine

identification code

"Machine Config." setting the machine version

(fast/better cycles - mains/tank)

"Selec. counter" setting the number of selections

after which the machine will lock

"MDB data" MDB protocol management

"Consecutive sel." setting the number of selections

after which the machine will

pause for heating

"Pre-grinding" setting grinding during the

selection to be used for the

next selection

"Set date/time" setting the clock

"Set washing" setting the time for automatic

washing

"Set band" setting the time of bands with

sales at a different price

"Set price band" setting the sales price of bands

with sales at a different price

"Set jug" number of consecutive

selections with jug facilities key

"Set language" language of displayed messages

"Set waste counter" number of brewing cycles

(plus version only)

The following operations are also possible:

- failure reset

- machine installation

- statistics display

- statistics printout

- statistics reset

At this point the buttons are assigned different functions as

indicated in the figure below.

increase data unit (+1)

decrease data unit (-1)

exit function

confirm function

previous function

next function

confirm data

change data

reset failures

installation

reset statistics

print statistics

display statistics

delete data

The buttons shown within the dotted line perform direct

functions, the ones outside are used to scroll through the

menu or to change data.

IMPORTANT NOTICE!!!

When initialising the machine, the configuration is

given the default values "Supply from the mains/

automatic cup dispensing".

THEREFORE AFTER INITIALISING, THE MACHINE

SHOULD BE RECONFIGURED.

DISPLAYING THE PRESENT FAILURES

When the "Present failure" function from the "program-

ming" menu is displayed, pressing the confirm button “ ”

will display the error code of the current failure;

when pressing button “ ” the error code of the next

applicable failure is displayed.

If no failure is currently present, pressing confirm button

“” will display the message "No Failure".

The 14 possible failures are shown in the following cases:

AIR-BREAK FAILURE

The machine will lock if the lack of water condition is not

signalled by the microswitch after 7 selections.

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Necta Brio 250 Installation, Use And Maintenance Manual

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