Related Manuals for Wega WBAR EVD
Summary of Contents for Wega WBAR EVD
- Page 1 WBAR ESPRESSO COFFEE MACHINE Use and Maintenance Manual. TECHNICIANS' instructions.
- Page 2 IMPORTANT: Read carefully before use. Store for future reference. All rights reserved on contents The total or partial reproduction and the dissemination of this document’s contents is forbid- den without the Manufacturer’s prior written authorisation. The Company logo is owned by the Manufacturer of the Machine.
- Page 3 SAFETY PRECAUTIONS LEVEL OF TRAINING AND KNOWL- I.I. Compliance with the installation and ma- EDGE REQUIRED OF THE TECHNI- chine’s safety standards is dependent on the use, installation, maintenance and correct op- CIAN eration of the machine. These factors are the The Technician is a specialised person that has responsibility of the purchaser, Technician and been specially trained and authorised to carry...
- Page 4 INSTALLATION I.IV. able to carry out operations when the machine is not powered, the Technician must apply the Electrical hazard rules prescribed by current technical standards (disconnect the power supply, avoid reclosures, High temperature hazard check that there is no voltage, etc.). Risk of explosion MAINTENANCE AND CLEANING I.V.
- Page 5 care with the following: following behaviours: • When indoors, always provide air vents. • Disconnect the machine from the power • Check for any gas leaks. mains via the main switch. • Do not under any circumstances attempt • Call the fire and rescue service. to light the gas without first installing the •...
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Page 6: Table Of Contents
Table of contents INTRODUCTION ..............7 MAINTENANCE AND CLEANING .........31 Guidelines for reading the Manual ........7 Safety precautions ..............31 Storing the Manual ..............7 PPE features ................31 Method for updating the Instruction Manual ....7 Bodywork removal ..............31 Recipients ..................7 Maintenance ................32 Glossary and Pictograms ............8 7.5 Water filter maintenance ............34... -
Page 7: Introduction
1. INTRODUCTION Read this manual carefully. It provides important safety infor- Storing the Manual mation to the Technician regarding the operations indicated in The Instruction Manual must be stored carefully. The manual this document. should be stored, handled with care with clean hands and not Keep this Manual in a safe place. -
Page 8: Glossary And Pictograms
RECIPIENT QUALIFICATIONS Personal protective equipment (PPE) The machine is intended for a professional non-generalised Clothing or equipment worn by someone to protect their use, therefore the Technician must: health or safety. • Have attended the training courses organised by the Man- Intended use ufacturer relating to the type of machine;... -
Page 9: Guarantee
This product is manufactured in compliance with the EU Directives, Regula- tions and Standards indicated in the EU DECLARATION OF CONFORMITY provided with the machine. The manufacturer’s customer service WEGA MACCHINE PER CAFFÈ S.R.L. Via Condotti Bardini, 1 31058 SUSEGANA (TV) - ITALY Tel. -
Page 10: Intended Use
Intended use General safety features The Technician must be aware of accident risks, safety devices The espresso co ee machine has been designed to profession- and the general safety rules set forth in EU directives and by ally prepare hot beverages such as tea, cappuccinos and weak, the legislation of the country where the machine is installed. -
Page 11: Machine Diagram
Machine diagram Power switch. Filter holder. Machine on indicator light. Cup holder grille. 14. Raised cup grilles. Heating unit water level indicator light. Hot water nozzle. Pressure gauge. Co ee pushbutton panel. Work surface light switch. Services pushbutton panel. Co ee / Autosteamer pushbutton panel (Optional). Cup warmer shelf. -
Page 12: Front Command Pushbutton Panels
Front command pushbutton panels 1 espresso 1 large co ee 2 espressos 2 large co ees STOP AUTO STOP AUTO PROG. STEAM PROG. STEAM Stop Program- Autosteamer ming / Conti- (Optional) nous Manual Key pos. dispensing switch Key pos. Hot water dis- Cup warmer pensing switch (Optional) -
Page 13: Componenti Interni
Componenti interni 22. Heating unit. 32. Pressure switch. 23. Internal motor pump. 33. Volumetric dosing device. 24. Water dispenser. 34. Safety thermostat. 25. Drain tray. 35. Telemetry device. * 26. Dispensing group. 36. Autosteamer control unit. * Mixed hot water regulator. * Autosteamer air regulator. -
Page 14: Data And Marking
An example of a nameplate is provided below. TRADEMARK WEGA MACCHINE PER CAFFÈ S.r.l. Via C. Bardini, 1 SUSEGANA (TV) - ITALY Tel. +39.0438.1799700 - Fax +39.0438.1884890 S/N: Mod. - Page 15 2.8.1 2.8.3 Heating unit Pressure relief safety valve The heating unit is made of copper sheet metal (22). The The pressure relief safety valve has a calibration of heat exchangers (B) are assembled onto this unit and are in 0.19 MPa (1.9 bar) in order to ensure that the pres- turn connected to the dispensing group.
- Page 16 2.8.7 Dispensing group In this system, the dispensing group (26) is heated by a ther- mosiphonic circuit (A) connected to the heat exchanger (B). The same water is used for the co ee dispensing, thus ensur- ing the same temperature for all co ee servings: • The solenoid valve and the pump are activated in order to send cold water to the exchanger (B) through the injector (C).
- Page 17 2.8.10 2.8.12 Electronic control unit Volumetric dosing The electronic control unit is installed on the The volumetric dosing device EVD versions. that is installed on the EVD Its purpose is to electronically control the cof- versions, measures the quan- fee dose via the water flowing through the tity of water sent to the group dosing device and to check that the heating in order to dispense co ee.
- Page 18 2.8.15 2.8.17 Hot water spout Water filter The hot water pipe is connected to a suction pipe of the boiler. In the mains water, non-soluble salts are Dispensing takes place by selecting a button (B) which acti- present which cause limestone to form vates the dispensing solenoid valve (A) in the heating unit and other parts of the machine.
- Page 19 2.8.19 Autosteamer (optional) • After the air has passed through the non-return valve (F), it mixes with the steam in the mixing interface (G). The “Autosteamer” system - fitted on some versions with a display - enables milk to be automatically frothed at the pro- • Steam comes out of the nozzle (H);...
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Page 20: Transport And Handling
3. TRANSPORT AND HANDLING Safety precautions Unpacking the machine Carefully read the instructions provided in chapter Only remove the machine from its packaging when it is ready "I. SAFETY PRECAUTIONS" on page 3. to be installed, in order to prevent accidental collisions which could damage it: • Open the packaging, taking care not to damage the ma- chine. -
Page 21: Storage
4. STORAGE 5. INSTALLATION Overview Safety precautions Carefully read the instructions provided in chapter In the waiting period prior to installation, the machine must be "I. SAFETY PRECAUTIONS" on page 3. stored by the Manufacturer or an Authorised Distributor. If the technician has not performed all the installa- tion operations and the machine is then used, this Storing the machine after operation may result in serious damage to the appliance and... -
Page 22: Installation And Operation Spaces
Installation and operation spaces Support base Before the machine arrives, a suitable environment must be To ensure a su cient degree of ergonomics and machine safe- prepared: ty, a support base with the following features must be made • The appliance is not suitable for installation in an area available (reference drawings on the next page): where a water jet may be used. - Page 23 40. Support base. 48. Water filter outlet. 49. Sewer drain. Grinder-dispenser. 42. 50 cm minimum distance between the machine and the 50. Water mains non-return valve. wall. Water mains valve. 43. Drain tray. 52. Used co ee grounds drawer. 44. Water mains inlet. 53.
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Page 24: Drilling The Support Base
Drilling the support base Hydraulic connection Before connecting the hydraulic system, make sure If holes need to be drilled into the support base to let the wa- the appliance has been disconnected from the elec- ter inlet hoses, outlet hoses and power cables pass through, trical mains. - Page 25 FOR THE EUROPEAN COMMUNITY: when connecting to a water mains or an external tank, a non-return valve (50) must be positioned upstream from the ma- chine, as set forth by the EN 1717 standard. FOR THE USA - The water connections and drains must be made in accordance with the 2003 Interna- tional Plumbing Code of the International Code Coun- cil (ICC), or the 2003 Uniformed Hydraulic Code of the IAPMO.
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Page 26: Commissioning
6.2.3 Grinding and dosing co ee Every electrical connection operation must be carried out with the mains o and the power supply discon- It is important to have a grind- nected. The Technician must also check that there is er-dispenser next to the ma- no voltage present, by using a multimeter, for example. -
Page 27: Lighting (If Fitted)
Lighting (if fitted) Before turning the machine on, proceed as follows: • After the hydraulic and electrical mains have been con- 6.4.1 Dispensing compartment nected, make sure that the drain tray (4) under the cup holder grille is correctly connected to the drain. To turn on and turn o the work compartment lighting, press the switch (16), which... -
Page 28: Water Renewal
Water renewal Dispensing co ee Nel corso dell'installazione della macchina, il Tecnico deve ef- Do not remove the filter holder from the dispensing fettuate le operazioni di rinnovo dell'acqua contenuta nei cir- group when co ee is being dispensed. cuiti idraulici seguendo questa procedura: When the machine is being installed, the Technician must re- The co ee dispensing method is di erent for each machine place the water inside the hydraulic circuits by following these... -
Page 29: Dispensing Steam
6.8.3 Dispensing steam Programming the co ee Each dose must be programmed with freshly Carefully move the steam nozzle using the specific ground co ee and not with previously-used co ee anti-scald rubber grip (9). grounds. Do not direct the steam towards hands or other parts of the body. -
Page 30: Dispensing Hot Water
6.10 Dispensing hot water 6.10.3 Mixed hot water regulation The mixing system (27), if present, allows the regulation of 6.10.1 Dispensing the temperature of the water supplied. Proceed as follows: • Remove the cup holder grid to gain access to the adjust- Danger of scalding. -
Page 31: Maintenance And Cleaning
7. MAINTENANCE AND CLEANING Safety precautions Carefully read the instructions provided in chapter "I. SAFETY PRECAUTIONS" on page 3. PPE features When maintaining and cleaning the machine, the following PPE is required: The use of protective gloves is mandatory. Bodywork removal 7.3.2 Removing the side panels If it is necessary to carry out maintenance operations inside... -
Page 32: Maintenance
Maintenance 7.4.1 Scheduled maintenance Perform the following maintenance according to the specified frequency. If the machine is used intensively, the checks need to be performed more frequently. Component Type of operation Quarterly Yearly Check the heating unit pressure which must be between 0.08 and 0.14 MPa (0.8 and 1.4 bar). - Page 33 Component Type of operation Quarterly Yearly PRESSURE GAUGE AND Check that the dosing device and pressure switch are working properly. PRESSURE SWITCH VOLUMETRIC DOSING Check and clean the volumetric dosing device by removing any oxidation from DEVICE the tips. MOTOR PUMP Visually inspect the condition of the machine’s wires.
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Page 34: Water Filter Maintenance
7.4.6 7.5.2 MULTIFUNCTIONAL DISPENSER check Bypass configuration The multifunctional dispenser is an im- Depending on the hardness of the water, adjust the bypass of portant component for the correct opera- the water filter as shown in the table below. Example: tion of the machine. - Page 35 7.5.3 Technical data Model Connection type 3/8" 3/8" 3/8" 3/8" Min.-max. water supply pressure (bar) Min. - max. water 4-30 4-30 4-30 4-30 temperature (°C) Room temperature 4-40 4-40 4-40 4-40 min-max (°C) Total height (A) without bracket (mm) Total height (B) with the bracket (mm) Connection (C)
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Page 36: Water Softener Regeneration
Water softener regeneration It is very important to regenerate the softener within the es- In order to keep the water softener, and hence the machine, tablished times. The regeneration is to be carried out regularly: in perfect operating condition, it is necessary to regularly re- every 15 days. -
Page 37: Malfunctions And Solutions
Malfunctions and solutions Problem Cause Action • The general switch is in the "OFF" position. • Place the main switch in the "ON" position. • The machine switch is faulty. • Replace the main switch. NO MACHINE POWER • The mains switch is in the OFF position. • Turn the mains switch to the ON position. - Page 38 Problem Cause Action • The filter holder is dirty. • Clean the filter holder. • The filter holes are worn. • Replace the filter. GROUNDS FOUND IN CUPS • The co ee has not been ground evenly. • Replace the grinders. • The group gasket is worn.
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Page 39: Warnings
Problem Cause Action • The volumetric dosing device connection is • Check that the volumetric dosing device con- faulty. nector has been connected properly. • The electronic control unit connection is • Check that the connector (8/10 poles) has faulty. been connected correctly to the electronic • The volumetric dosing device connector is wet. -
Page 40: Cleaning Operations
Cleaning operations 7.9.2 Cleaning the filters and filter holders Caution: only immerse the filter holder cup in water 7.9.1 General instructions and try not to get the handle wet. The cleaner must be diluted in cold water in the doses A few simple cleaning tasks are required to have a perfectly indicated on the package (see the manufacturer). -
Page 41: Spare Parts
Weekly • Press and hold the button on the keypad of STOP PROG. Clean the shower screen as follows: the group you would like to wash and immediately • Remove the seal (A) by carefully us- afterwards, press and hold the button for at ing a screwdriver to pry it open (take least 5 seconds (the button should flash). -
Page 42: Decommissioning
9. DECOMMISSIONING 11. DISPOSAL Short period of machine inactivity 11.1 Disposal information “Short period of machine inactivity” refers to a period of time For the European Union and the European Eco- exceeding one working week. nomic Area only. If the machine is reactivated after this period, the Technician This symbol indicates that the product cannot must replace all the water contained in the hydraulic circuits be disposed of with household waste, pursuant... -
Page 43: Wiring Diagrams
12. WIRING DIAGRAMS 12.1 ELECTRIC MAINS connection VERSION UL 3-POLE CABLE (Phase+Neutral+Earth) VERSION EU 5-POLE CABLE (3 Phases+Neutral+Earth) GNYE GNYE VERSION EU 3-POLE CABLE (Phase+Neutral+Earth) Phase Phase Phase Neutral Earth GNYE Power cable Power switch Connector Pressure switch Electric heating element Safety thermostat Fuse 15 A UL Fuse 15 A UL... -
Page 44: Power Supply Wiring Diagram
12.2 Power supply wiring diagram OCTO SERV SCTZ DSW1 CN15 CN11 CN16 GN BU WH GY VT BK IC10 LED power supply GR2 manual disp. key Power switch GR2 manual disp. key Double Control Pump Cup warmer key Group 1 Solenoid Valve Group 2 Solenoid Valve Brown Group 3 Solenoid Valve... -
Page 45: Electronic Control Unit
12.3 Electronic control unit Level LED Not used Frothed milk NTC CN4A Level probe CN4B Volumetric counters DSW-1 Not used Not used CN15 Tea button Auxiliary RS 232 connection (Wi-Fi) CN10 Keypad connection CN11 CPU programming CN12 Auxiliary CN11 CN13 Auxiliary CN14 Auxiliary... -
Page 46: Connector Connection
12.4 Connector connection CAL Heating unit Volumetric counter Level LED BNWH NLS Frothed milk NTC Heating unit level probe TTE Tea button Brown BNWH White-Brown Black Blue Green GNYE Green-Yellow Grey CN4A Orange Pink GNYE Violet White Yellow CN4B TECHNICIANS' manual - English -... -
Page 47: Push Button Panel Connector
12.5 Push button panel connector SW-1 Push button SERIAL OUT SERIAL IN -485 CN10 +485 12.6 LED Power Supply Connection LED power supply GR1 manual button Led GR2 manual button Led Cup warmer button Led Tea button Led Working light button Led Black White TECHNICIANS' manual... -
Page 48: Hydraulic Diagrams
13. HYDRAULIC DIAGRAMS 13.1 Hydraulic Diagram EVD/2 Dispensing group Frothed milk solenoid valve Water mains inlet Dispensing group solenoid valve Hot water spout Water inlet filter Ø 0.7 injector Steam spout Motor pump Volumetric dosing device Air pump Pump pressure adjustment Heating unit Ø... -
Page 49: Hydraulic Diagram Evd/3
13.2 Hydraulic Diagram EVD/3 Dispensing group Frothed milk solenoid valve Water mains inlet Dispensing group solenoid valve Hot water spout Water inlet filter Ø 0.7 injector Steam spout Motor pump Volumetric dosing device Air pump Pump pressure adjustment Heating unit Ø... - Page 52 WEGA MACCHINE PER CAFFÈ S.r.l. Via Condotti Bardini, 1 - 31058 SUSEGANA (TV) - ITALY Tel. +39.0438.1799700 - Fax +39.0438.1884890 www.wega.it - info@wega.it Cod. WY02000904 - Rev. 02 - 06/2021...