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AFTER-SALES SERVICE
Hot & Cold
SERVICE MANUAL
"BRIO 250"
BASIC TECHNICAL MANUAL
THE CONTENTS OF THIS DOCUMENT ARE INTENDED FOR NECTA'S AFTER SALES PERSONNEL.
NECTA SPA TECHNICAL MANUAL "BRIO 250"
Service Manual: Brio 250
Edition 02-2002
1 / 27

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Summary of Contents for Wittenborg Necta BRIO 250

  • Page 1 AFTER-SALES SERVICE Hot & Cold SERVICE MANUAL “BRIO 250” BASIC TECHNICAL MANUAL THE CONTENTS OF THIS DOCUMENT ARE INTENDED FOR NECTA’S AFTER SALES PERSONNEL. NECTA SPA TECHNICAL MANUAL “BRIO 250” Service Manual: Brio 250 Edition 02-2002 1 / 27...
  • Page 2: Table Of Contents

    TABLE OF CONTENTS Layout Page 3/4 Electrical systems, connections and configuration Page 5/6/7/8/9/10/11 Air-break / Boilers Page 12/13/14 Pumps and by-pass Page 15 Coffee brewer unit Page 15 Stirrer dispensing unit Page 16 Cup dispenser assembly Page 16 Doser devices and powder product containers Page 17 Mixer unit Page 18...
  • Page 3: Layout

    1 - HYDRAULIC LAYOUT “Espresso” Hydraulic layout version List of hydraulic components 1) Water inlet solenoid valve 2) Air-break 3) Filter 4) Volumetric counter 5) Pump 6) Pump by-pass 7) Brewer unit 8) Pressure boiler 9) Liquid waste tray float NECTA SPA TECHNICAL MANUAL “BRIO 250”...
  • Page 4 “INSTANT” hydraulic Layout version List of hydraulic components Layout of cabinet kit with self-contained 1) Water inlet solenoid valve 20-litre water supply 2) Boiler with air-break incorporated 1) Water supply tank 3) Boiler internal float 2) Water softner Filter (optional for some 4) Solenoid valves markets) 5) Dry operation safety thermostat...
  • Page 5 2 - ELECTRICAL SYSTEMS - CONNECTIONS - CONFIGURATIONS The machine is designed to operate under a single-phase voltage of 230 V AC (+5-10V) It is protected with a main 10 A fuse on both phases. With regard to the transformer: The primary winding is protected with a 125 mA fuse The secondary winding is protected with a 1.25 mA fuse The machine is fitted with a door opening safety switch.
  • Page 6 Board connection diagram LCD push- To the button card printer Actuation Programer Outputs See note To sensors: IVA –NTC- CV – ID - CM1-2 - PG Coin To sensors: mech. IPF1-2 – PR – IVB –CCG - IVA EXE - BDV Boiler heating element...
  • Page 7 Actuation and CPU control board Prospective View from rear without the casing Board components legend Description TRIAC - boiler heating element Note 1: Actuations for connector J7 Jumper - Espresso / Instant configuration E4 - EEA - MSCE - ZP - CMSB - PSB - MINIDIP - Configuration MSB - MSCB - MSV - MF2/3 - MD2/3/4 - MF1...
  • Page 8 Reference to relay code and actuations - Espresso / Instant version Espresso Configuration Instant Configuration RELAY CODE RELAY CODE Application Application Three-way solenoid valve for Whipper 2 K 01 K 01 Espresso coffee Coffee release magnet Whipper 1 K 02 K 02 Coffee grinder motor Doser device 1...
  • Page 9 Machine control board configuration Three electronic boards are installed. 1) The control board, located at the back of the machine, processes the information from the push-buttons, the payment system and from the sensors installed throughout the machine; it also controls the actuations and the push-button board.
  • Page 10 Push-button board layout and connections 1- Display contrast trimmer 2 -RS 232 Printer port 3 - Programmer connector 4 - Control board connector 5- Payment system conf. Minidips 6- Jumper Jp 2 7- To control board 8- Executive serial interface 9- Front validator 10 - Jumper Jp 1 11- Coin return lamp...
  • Page 11 See the following tables for the available configurations Configuration minidip Ref. 3: example of configuration for Spanish, Espresso, stirrer dispensed always, and standard Executive coin mechanism. OFF 1 LANGUAGE CONFIGURATION LANGUAGE Minidip Italian French Spanish MODEL CONFIGURATION Model Espresso Instant MINIDIP 5 Jumper (2) 2 - 3...
  • Page 12: Air-Break / Boilers

    3 - AIR-BREAK / BOILERS It is the same functional unit used in the Venezia and Spazio vending machines, therefore with established characteristics and reliability. It is a functional unit that permits various functions: Its main function is to keep the water level constant and to signal a water flow interruption from the mains; in the event of such water failure the current selection can be completed.
  • Page 13 AIR-BREAK FRONT VIEW WITH DOOR OPEN Operating conditions at first start-up: Level indicator When the machine is started, a microswitch connected to the float indicates the absence of water to the SW, from the control board a signal microswitch is sent to relay K16, which activates the water inlet solenoid valve. Water is delivered to the air-break flowing through filter “F”, thus eliminating any foreign matter present in the water (sand, calcium particles, etc.).
  • Page 14 3.1 - BOILERS In the Brio Espresso model there is only one pressure type boiler identical to the model used for the Venezia vending machine and controlled by an air-break and a vibration pump. Installed power 1200 W On the other hand in the Instant version there is a specific open-top boiler with an incorporated air-break. Installed power 1600 W HYDRAULIC DIAGRAMS - ESPRESSO AND INSTANT VERSIONS Open-top...
  • Page 15: Pumps And By-Pass

    4 - PUMPS AND BY-PASS Note: The pump is used in the espresso version only: In order to supply water to the boiler UNDER PRESSURE the same pump used in the entire range of H & C vending machine is used. The pump has overheating protection in case of continuous or dry operation by means of a 90°...
  • Page 16: Coffee Brewer Unit

    5 - ESPRESSO COFFEE BREWER UNIT The well-known and reliable Z 2000 M unit is used The unit is factory set to accommodate a patented first coffee KIT, based on the use of a very low power consumption heater of the NTC type and having such characteristics as to be able to perform self-adjustments under optimum conditions.
  • Page 17: Cup Dispenser Assembly

    6 - SUGAR AND STIRRER DISPENSING ASSEMBLY It is a functional unit developed from the unit used in other ranges of the H & C machines, but adapted to this specific application and with the sugar release device incorporated, which works simultaneously. Operation: The release ratiomotor is triggered by relay K 24 and the sugar release spout is rotated at the same time as the activation of the stirrer release...
  • Page 18: Doser Devices And Powder Product Containers

    DOSER DEVICES AND POWDER PRODUCT CONTAINERS Toothed pinion that drives the container auger Instant tea container Milk and chocolate container Slots for securing and positioning containers The powder containers are made of plastic material, certified as being food-safe and inside they are fitted with worm screw systems (auger) to meter the powder.
  • Page 19: Mixer Unit

    9 - MIXER UNIT Apart from their application, the mixers are the usual excellent and reliable ones used in the entire Necta production. A mixer must have two main features: 1) Ease of disassembly and limited number of components to be able to meet the HACCP directive. 2) The quality of dispensed products that must have as much as possible the appearance of products served at the bar.
  • Page 20 10 - POWDER AND LIQUID DOSE TABLES Factory “default” settings Selection Notes Coffee Coffee Water Powder Sugar Notes beans Instant c.c. Time 2 sec. 35 sec. CDV = Short coffee 60 cdv 7.5 g Flow-meter Espresso Quantity pulses Long coffee Time 2sec.
  • Page 21: Trouble-Shooting

    11 - TROUBLE-SHOOTING Problem Possible cause Solution (And/or indication on the display) The machine does not go No water flow from the mains Check the presence of one or more of situations indicated into the boiler heating or insufficient pressure (5-85 and once identified the cause do as follows: phase, remaining in the N/cm...
  • Page 22 The display indicates The water amount for both espresso coffee and instant drink the message The coffee dose is not reached selections is ensured by a volumetric counter; with the water “Volumetric counter” within 60 sec. flow a wheel rotates and through sensors sends a number of (flow-meter) pulses corresponding to the water dose programmed in the SW.
  • Page 23: Wiring Diagrams

    13 - WIRING DIAGRAMS Espresso version wiring diagram Instant version wiring diagram NECTA SPA TECHNICAL MANUAL “BRIO 250” Service Manual: Brio 250 Edition 02-2002 23 / 27...
  • Page 24: Haccp Directive (Use Instructions)

    HACCP DIRECTIVE (EEC 93/43 and 96/3) Outline and instructions for use Notes: What is indicated by the Ec Directive Directives EEC 93/43 and 96/3 concern the hygiene of food products and are based on the HACCP (Hazard Analysis Critical Control Point). The purpose of this directive is to safeguard the consumer health, suggesting a series of actions to be taken by the vending company, aimed at checking, identifying and correcting any critical aspects in the foodstuff chain, from the purchase of products and machines to the dispensing of the product.
  • Page 25: Daily Cleaning And Hygiene

    DAILY CLEANING AND HYGIENE (Expected time 3 min. 30 sec.) FIG.2 Open the door and disconnect the machine from the power supply (FIG Remove the liquid collection container, empty it and rinse it thoroughly (FIG 2). Empty the grounds container and rinse it thoroughly (Fig.
  • Page 26 WEEKLY CLEANING AND HYGIENE FIG. 2 (Expected time 6 min.) Open the door and disconnect the machine from the power supply (FIG Remove the powder dispensing spouts and clean thoroughly using specific hygiene products (FIG 3). Remove the containers, empty them completely and clean thoroughly (FIG.
  • Page 27 MONTHLY CLEANING AND HYGIENE (or every 5000 selections) Expected time 14 min. (in addition to the time taken for regenerating the filter) In addition to the weekly operations, also the following must be carried out: FIG. 1 FIG.3 Remove the brewer unit from the machine and disassemble, then clean all residue and rinse thoroughly with hot water, check the filters for clogging and...

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