Wega ALE Use And Maintenance Manual
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Wega ALE Use And Maintenance Manual

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ALE
EMA
EPU
EVD
ESPRESSO COFFEE MACHINE
EN
Use and Maintenance Manual. TECHNICIANS' instructions.

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Summary of Contents for Wega ALE

  • Page 1 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 Attention must be paid to the residual risks that are present during the operations de- I.I. LEVEL OF TRAINING AND scribed in the following paragraphs as they cannot be eliminated: KNOWLEDGE REQUIRED OF THE Compliance with the installation and ma- TECHNICIAN chine’s safety standards is dependent on the use, installation, maintenance and cor-...
  • Page 4 INSTALLATION I.IV. safe and be able to carry out operations when the machine is not powered, the Tech- Electrical hazard nician must apply the rules prescribed by current technical standards (disconnect the High temperature hazard power supply, avoid reclosures, check that there is no voltage, etc.).
  • Page 5 • Do not place your hands or other body proceed to immediately carry out the ac- parts near the steam, hot water or milk tions based on the type of problem. dispensing nozzle tips. SHORT CIRCUIT FIRE If gas is used (where applicable), take spe- In the event of a fire caused by the ma- cial care with the following: chine’s electrical system malfunctioning,...

  • Page 6: Table Of Contents

    Safety precautions ..............21 12.2 MACHINE Power Supply ............54 PPE features ................21 12.3 ALE - EMA version ..............55 Dimensions and weight ............21 12.4 Single-phase U.L. - VELA EMA version ......56 Handling the packed machine .........21 12.5 230-400V VELA EMA version ..........57 Unpacking the machine ............21...

  • Page 7: Introduction

    1. INTRODUCTION 1.2 Storing the Manual The Instruction Manual must be stored carefully. The manual Read this manual carefully. It provides important safety infor- should be stored, handled with care with clean hands and not mation to the Technician regarding the operations indicated placed on dirty surfaces.

  • 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

    Mandatory symbol indicating that the documenta- service tion must be read; used to make the Technician aware of the importance of this action for their safety. WEGA MACCHINE PER CAFFÈ S.R.L. Via Condotti Bardini, 1 31058 SUSEGANA (TV) - ITALY Tel. +39.0438.1799700 - Fax +39.0438.1884890 Email: info@wega.it - Website: www.wega.it...

  • Page 10: Intended Use

    2.4 Intended use General safety features The Technician must be aware of accident risks, safety devices The espresso coffee machine has been designed to profes- and the general safety rules set forth in EU directives and by sionally prepare hot beverages such as tea, cappuccinos and the legislation of the country where the machine is installed.
  • Page 11 4 10 ALE version EPU version EVD version TECHNICIANS' manual...

  • Page 12: Front Command Pushbutton Panels

    2.6 Front command pushbutton panels Hot water 2 espressos 1 espresso 1 espresso 2 espressos 1 large 1 large 2 large coffee coffee Stop 2 large Stop coffees Programming coffees Programming 1 espresso 1 large coffee 2 espressos 2 large coffees Stop 1 large...

  • Page 13: Internal Components

    2.7 Internal components Heating unit 17. Heating unit thermostat Dispensing group 18. Heating unit pressure switch Internal motor pump (*) Heating unit/motor pump pressure gauge (*) Optional device Heating unit level-check window Internal pump water attachment connection (*) Manual water pump External pump water attachment connection Drain tray 10.

  • Page 14: Data And Ce Marking

    The nameplate which provides the appropriate markings, identification data and specific technical data, is affixed un- der the drain tray. 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 Heating unit Pressure relief safety valve 2.8.1 2.8.3 The heating unit is made of copper sheet metal (1). The heat The pressure relief safety valve has a calibration exchangers are assembled onto this unit and are in turn con- of 0.19 MPa (1.9 bar) in order to ensure that the nected to the dispensing group.
  • Page 16 LEVER group LEVER group 2.8.7 2.8.8 The group lever uses the heating unit pressure and water. This A system similar to the one shown for the Dispensing Group is system does not require heat exchangers. used for the lever group; see para. XX. When the lever (1) is lowered, the spring (2) inside the group In this case the dispensing is controlled by a spring system.
  • Page 17 2.8.9 DISPENSING group 2.8.10 Safety thermostat In this system, the dispensing group (1) is heated by a ther- The thermostat prevents any damage occurring to the elec- mosiphonic circuit (2) connected to the heat exchanger (3). trical heating element if there is no water in the heating unit. The same water is used for the coffee dispensing, thus ensur- The thermostat bulb (7) is located inside a sheath (8) in the ing the same temperature for all coffee servings:...
  • Page 18 2.8.13 Automatic Water Entry 2.8.14 Volumetric dosing The Automatic Water Entry system is designed to check the The volumetric dosing device that is installed on the EVD ver- water level in the heating unit. It consists of: sions, measures the quantity of water sent to the group in order to dispense coffee.
  • Page 19 2.8.17 Hot water spout 2.8.20 Water filter The hot water spout is connected to a heating unit suction In the mains water, non-soluble salts are hose. Depending on the model, hot water can be dispensed present which cause limestone to form in in two ways: the heating unit and other parts of the machine.
  • Page 20 2.8.22 Automatic steam wand (optional) The “Automatic steam wand” system - fitted on some ver- sions with a display - enables milk to be automatically frothed at the programmed temperature. The operating principle of the automatic steam wand is listed below: • Press the specific button (1), located on the left side of the machine’s base.

  • Page 21: Transport And Handling

    3. TRANSPORT AND HANDLING 3.5 Unpacking the machine Only remove the machine from its packaging when it is ready 3.1 Safety precautions to be installed, in order to prevent accidental collisions which could damage it: Carefully read the instructions provided in • Open the packaging, taking care not to damage the ma- chapter "I.

  • Page 22: Storage

    4. STORAGE 5. INSTALLATION 4.1 Overview 5.1 Safety precautions Carefully read the instructions provided in In the waiting period prior to installation, the machine must chapter "I. SAFETY PRECAUTIONS" on page be stored by the Manufacturer or an Authorised Distributor. If the technician has not performed all the in- 4.2 Storing the machine after operation stallation operations and the machine is then...

  • Page 23: Installation And Operation Spaces

    5.4 Installation and operation spaces 5.5 Support base Before the machine arrives, a suitable environment must be To ensure a sufficient degree of ergonomics and machine prepared: safety, a support base with the following features must be made available (reference drawings on the next page): • The appliance is not suitable for installation in an area where a water jet may be used.
  • Page 24 Support base 16. Water mains check valve Grinder-dispenser 17. Used coffee grounds drawer 50 cm minimum distance between the machine and 18. Support for knocking out the grounds in the filter the wall holder Drain tray 19. The minimum height of the machine top from the floor Heating unit water level must be 150 cm Water mains inlet Manually filling with water Adjustable feet of the machine Electrical mains switch...

  • Page 25: Drilling The Support Base

    5.6 Drilling the support base If holes need to be drilled into the support base to let the wa- ter inlet hoses, outlet hoses and power cables pass through, follow the directions given in the drawings below. 1 GROUP COMPATTA 160 mm Front of the machine 326 mm...

  • Page 26: Hydraulic Connection

    5.7 Hydraulic connection Before connecting the hydraulic system, make sure the appliance has been disconnected from the electrical mains. Water supply 5.7.1 The appliance’s water supply must provide water which is suitable for human consumption, and must conform with the regulations in force in the place of installation.
  • Page 27 The water mains must supply cold water fit for • The conformity of the electrical system, effectiveness of human consumption (potable water) at a pres- the earthing system and functionality of the differential sure between 0.15-0.6 Mpa (1.5 and 6 bar). If the circuit breaker - all of which are fundamental for guaran- pressure is higher than 0.6 MPa (6 bar), connect a pressure teeing the appliance’s electrical safety - are the responsi-...

  • Page 28: Gas Connection (If Fitted)

    The electrical system must be equipped with a FOR GERMANY protection device (8) that ensures an omnipolar The following requirements must be observed disconnection from the mains with a contact for installation: opening distance in overvoltage category III conditions • The regulation regarding the local police and the fire and which guarantees a suitable residual-current device, department.
  • Page 29 • If connecting with a hose, follow the instructions below: • When connecting with a rigid pipe: connect the Ø8 copper pipe to the 1/4 gas fitting (1). Use a hose that complies with the current regulations (it is important to periodically replace it as indicated • Check that the type of gas used corresponds to the one in- on the hose's stamp).
  • Page 30 Gas table 5.8.3 Instructions for installing the appropriate injector and adjust- ing the air extraction guard. Supply Injector inlet mini- Burner injec- Air intake Minimum power Maximum power Maximum type pressure mum pressure tor hole extraction guard Q min consumption MODEL mbar mbar...
  • Page 31 Gas system connection 5.8.4 If you would like to increase or decrease the operating pres- sure in the heating unit, proceed as follows: To adjust the gas proceed as follows: 1. Turn on the gas system. TO DECREASE PRESSURE 2. Remove the locknut (A) and loosen the adjustment screw Set the minimum to 0.09 MPa (0.9 bar) and the maximum (B) by turning it twice.

  • Page 32: Commissioning

    6. COMMISSIONING External motor pump adjustment 6.2.4 To adjust the operating pressure, proceed as follows: 6.1 Safety precautions • Press a coffee dispensing switch. Carefully read the instructions provided in • Adjust the pressure by turning the screw located on the chapter "I.

  • Page 33: Automatic Steam Wand (If Applicable)

    6.5 Automatic steam wand (if applicable) The level window is replaced with a green indi- cator light (2) in some versions: when lit, it indi- cates the correct water level in the heating unit 6.5.1 Adjusting the temperature and when it flashes slowly, it indicates that the water is To program the temperature of the milk to be heated, enter being loaded.

  • Page 34: Water Renewal

    Gas heating 6.7 Water renewal 6.6.2 (if a gas system has been installed) When the machine is being installed, the Technician must re- place the water inside the hydraulic circuits by following these • Turn the power switch (A) to position 1. steps: • Open the gas valve (B) on the mains.

  • Page 35: Dispensing Coffee

    • The lever will continue ascending to its idle position, dur- ing which time the coffee will be dispensed. Wait for the “ALE” version 6.8.2 coffee to finish dispensing. Never perform the below-described operations without coffee in the filter or without the filter holder attached to the dispensing group.
  • Page 36 “EPU“ version 6.8.4 PROGRAMMING THE COFFEE Each dose must be programmed with freshly • Place a cup/demitasse under the group’s dispensing spout. ground coffee and not with previously-used cof- • Press the desired dispensing button : the machine fee grounds. will start dispensing coffee;...

  • Page 37: Dispensing Steam

    6.9 Dispensing steam Control knob version 6.9.1 • Immerse the steam nozzle into the liquid to be heated. The steam dispensing method is different for each machine type; therefore, the instructions specific to the model being • Rotate the valve knob anticlockwise. used must be followed.

  • Page 38: Dispensing Hot Water

    The hot water dispensing method is different for each ma- chine type; therefore, the instructions specific to the model being used must be followed. 6.10.1 "ALE - EMA - EPU” versions • The machine dispenses a programmed quantity of hot • Place the pot under the hot water spout.

  • Page 39: Dispensing Cappuccinos (Optional)

    5 seconds and all the pushbutton panel LEDs should light up. To confirm the dose, press the 6.12.1 "ALE - EMA - EPU” versions button. • In other models, to access programming it is necessary to To use the cup warmer on this version of the machine, pro- use a special key switch.

  • Page 40: Tips For A Good Cup Of Coffee

    6.12.2 “EVD” version 6.13 Tips for a good cup of coffee To use the cup warmer on this version of the machine, pro- Wash the filters and filter holders on a daily basis, as indi- ceed as follows: cated in para. 7.7.3 on page 50. The failure to perform this cleaning operation will negatively affect the quality of the • Place the cups on the cup warmer (1) shelf of the coffee dispensed coffee.

  • Page 41: Maintenance And Cleaning

    7. MAINTENANCE AND CLEANING 7.1 Safety precautions Carefully read the instructions provided in chapter "I. SAFETY PRECAUTIONS" on page 7.2 PPE features When installing the machine, the following PPE is required: The use of protective gloves is mandatory. 7.3 Maintenance 7.3.1 Scheduled maintenance Perform the following maintenance according to the specified...
  • Page 42 Component Type of operation Quarterly Yearly Replace the electric heating element if it becomes faulty or malfunctions. Do not replace the heating element with a more powerful one. Before making any changes, please contact the Manufacturer. If the thermostat of the heating element is triggered, reset it by pressing the central button of the thermostat.
  • Page 43 Maintenance after a short period NEGATIVE PRESSURE VALVE check 7.3.2 7.3.5 of machine inactivity First check: “Short period of machine inactivity” refers to a period of time • Remove the machine's upper grille. exceeding one working week. • Use pliers to push the valve pin (5) downwards. If the machine is switched back on after this period, all the • If the pin will not budge, it probably means that the valve water inside the hydraulic circuits must be replaced as indi-...

  • Page 44: Water Filter Maintenance

    7.4 Water filter maintenance Bypass configuration 7.4.2 Depending on the hardness of the water, adjust the bypass of Determining the water hardness 7.4.1 the water filter as shown in the table below. Example: As part of the filter maintenance, it is advisable to test the 9°dKH water hardness water beforehand. To identify the carbonate hardness of the water use the spe- cial kit as follows: Bypass adjustment 2 • Put 10 ml of water to be tested (1) in the test tube.
  • Page 45 Technical data 7.4.3 Model Connection type 3/8" 3/8" 3/8" 3/8" Min.-max. water sup- ply 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) with- out bracket (mm) Total height (B) with the bracket (mm) Connection (C) height...

  • Page 46: Water Softener Regeneration

    7.5 Water softener regeneration In order to keep the water softener, and hence the machine, in perfect operating condition, it is necessary to regularly re- It is very important to regenerate the softener within the es- generate it, depending on the softener and hardness of the tablished times.

  • Page 47: Malfunctions And Solutions

    7.6 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. •...
  • Page 48 Problem Cause Action • The group solenoid valve drain is clogged. • Clean the group drain. • The dispensing group is too cold. • Wait until the group has fully heated up. THE COFFEE GROUNDS ARE WET • The coffee has been ground too finely. •...
  • Page 49 Problem Cause Action • The volumetric dosing device connection is faulty. • Check that the volumetric dosing device connec- • The electronic control unit connection is faulty. tor has been connected properly. • The volumetric dosing device connector is wet. •...

  • Page 50: Cleaning Operations

    7.7 Cleaning operations Washing the cappuccino maker 7.7.2 Take special care when cleaning the cappuccino maker and 7.7.1 General instructions follow the steps provided below: A few simple cleaning tasks are required to have a perfectly • Perform an initial wash by immersing the suction hose sanitised and efficient appliance. The instructions provided into the water and dispensing for a few seconds.
  • Page 51 Do not carry out a group wash if you possess the press and hold the (2) button for at least 10 seconds “ALE version”. (the button should flash) and the following message will appear on the versions with a display: Wash the dispensing groups on a daily basis.

  • Page 52: Spare Parts

    9.2 Long period of machine inactivity Weekly Clean the shower screen as follows: "Long period of machine inactivity" refers to a period of time exceeding 30 working days. • Remove the seal (1) by carefully using a screwdriver to In this case, the machine must be disconnected from the elec- pry it open (take care not to tric, hydraulic and gas mains if fitted, and all the internal cir- damage it).

  • Page 53: Wiring Diagrams

    12. WIRING DIAGRAMS 12.1 ELECTRIC MAINS connection GNYE (*) For Brazil 3-CONDUCTOR CABLE (Phase+Neutral+Earth) Phase Phase Phase GNYE Neutral Earth  Blue Power cable Grey GNYE Yellow-green Brown Black 4-CONDUCTOR CABLE (3 Phase+Earth) GNYE 5-CONDUCTOR CABLE (3 Phase+Neutral+Earth) To correctly connect the machine to the electric mains, please refer to the information provided on the nameplate (see the example in paragraph 2.7).

  • Page 54: Machine Power Supply

    12.2 MACHINE Power Supply Phase 3-CONDUCTOR CABLE Phase Phase Neutral GNYE Earth  Blue CAB Power cable Power switch Connector Grey GNYE Yellow-green (*) For Brazil Switch Brown 4-CONDUCTOR CABLE 5-CONDUCTOR CABLE Black Pressure switch Heating element BK BU GNYE Safety heating el.

  • Page 55: Ale - Ema Version

    12.3 ALE - EMA version MA BL NE GR GV White Blue Power cable Heating unit Power switch Power supply connector Heating unit filling solenoid valve Fuse Grey Yellow-green Timeout LED Cup warmer switch Indicator light Brown Black Pressure switch...

  • Page 56: Single-Phase U.l. - Vela Ema Version

    12.4 Single-phase U.L. - VELA EMA version White Blue Heating unit Power supply connector Electrical system connector Heating unit filling solenoid valve FP1(*) UL (OPD) Motor pump fuse FP2(*) UL (OPD) Fuse for 230 V Control unit fuse. NE BI BI VE Grey Yellow-green...

  • Page 57: 230-400V Vela Ema Version

    12.5 230-400V VELA EMA version BL MA NE GR White Blue Heating unit Power supply connector Electrical system connector Heating unit filling solenoid valve MA BL BI VE FP1(*) UL (OPD) Motor pump fuse FP2(*) UL (OPD) Fuse for 230 V Control unit fuse.

  • Page 58: Epu Version

    12.6 EPU version MA BL NE GR GV White Blue Power cable Heating unit Power switch Power supply connector GR1 solenoid valve GR2 solenoid valve GR3 solenoid valve GR4 solenoid valve Heating unit filling solenoid valve FP1(*) UL (OPD) Motor pump fuse FP2(*) UL (OPD) Fuse for 230 V Fuse Grey...

  • Page 59: Evd Version

    12.7 EVD version The table below shows, for each model of machine, the code for the control unit and the reference to the page with the wiring diagram. Control unit Control unit Giemme Gicar Control unit Control unit Giemme Gicar Machine Machine power supply...
  • Page 60 12.7.1 Wiring diagram code WY18362 - WY18363 *JUNIOR* MA BL NE GR GV CN3 CN4 White Yellow-green Blue Programming switch Power cable Indicator light Heating unit Brown Membrane connection Motor pump Power supply and services outputs Black Dosing device output Pressure switch Programming switch Heating element...
  • Page 61 12.7.2 Wiring diagram code WY18077 - WY18078 - WY18079 White Blue Power cable Heating unit Power switch MA BL NE GR GV Power supply connector Flow meter GR1 Flow meter GR2 Flow meter GR3 Flow meter GR4 GR1 solenoid valve GR2 solenoid valve GR3 solenoid valve GR4 solenoid valve...
  • Page 62 12.7.3 Wiring diagram code WY18090016 - WY18090017 GIEMME* White Blue Power cable Heating unit MA BL NE GR GV Power switch Power supply connector Flow meter GR1 Flow meter GR2 Flow meter GR3 Flow meter GR4 GR1 solenoid valve GR2 solenoid valve GR3 solenoid valve GR4 solenoid valve Filling solenoid valve...
  • Page 63 12.7.4 Wiring diagram code WY18090016 - WY18090017 *GICAR* White Blue Power cable MA BL NE GR GV Heating unit Serial connector Power supply Low voltage connector Steam outlet connector Power switch Power supply connector PB panel connector GR1 PB panel connector GR2 PB panel connector GR3 PB panel connector GR4 Flow meter GR1...
  • Page 64 12.7.5 Wiring diagram code 18090030 - 18090031 *GIEMME* White Blue Power cable Heating unit MA BL NE GR GV Steam outlet connector Power supply connector Low voltage connector Programm. connector PB panel connector GR3 CN10 PB panel connector GR2 CN11 PB panel connector GR1 Power switch Power supply connector Flow meter GR1...
  • Page 65 12.7.6 Wiring diagram code WY18090030 - WY18090031 *GICAR* White Blue Power cable MA BL NE GR GV Heating unit Power supply connector PB panel connector GR1 PB panel connector GR2 PB panel connector GR3 Steam outlet connector Low voltage connector Power switch Power supply connector Flow meter GR1...
  • Page 66 18090031A - 1 12.7.7 Wiring diagram code WY18090031A *GIEMME* White Blue Heating unit Power switch Power supply connector Flow meter GR1 Flow meter GR2 Flow meter GR3 GR1 solenoid valve GR2 solenoid valve GR3 solenoid valve Filling solenoid valve Tea solenoid valve Inlet fuse (10 A) FP1(*) Motor pump fuse UL (OPD) fuse FP2(*) 230 V UL (OPD) fuse...
  • Page 67 LEVEL LED connector INLET connector GR3 ow meter GR2 ow meter GR1 ow meter Heating unit level probe POWER SUPPLY connector - Phase TILL RS232 SERIAL connector Neutral +5 V/+VA TX_OUT RX_OUT PUSHBUTTON PANEL connectors RS232 TELEMETRY connector GR1 pushbutton panel +5 V/+VA GR2 pushbutton panel TX_MODBUS...
  • Page 68 12.7.8 Wiring diagram code WY18090031A *GICAR* MA BL NE GR GV White Blue Power cable Heating unit Power supply connector PB panel connector GR1 PB panel connector GR2 PB panel connector GR3 Steam outlet connector Low voltage connector Power switch Power supply connector Flow meter GR1 Flow meter GR2...
  • Page 69 LEVEL LED connector INLET connector GR3 ow meter GR2 ow meter GR1 ow meter Heating unit level probe POWER SUPPLY connector - Phase BUTTON AND LED connector Neutral Button TEA button LED PUSHBUTTON PANEL connectors RS232 connector +5 V RS485A GR1 pushbutton panel CN10 RS485B...
  • Page 70 12.7.9 Wiring diagram code WY18090012-13-14-15 White Blue Power cable MA BL GR GV Heating unit CN1 Power supply connector CN2 Low voltage connector CN4 Serial transmission connector Power switch Power supply connector GR1 volumetric counter 400V GR2 volumetric counter GR3 volumetric counter GR4 volumetric counter GR1 solenoid valve GR2 solenoid valve...
  • Page 71 12.7.10 Wiring diagram code WY18090047 - WY18090048 *GIEMME* White Blue MA BL NE GR GV CAL Heating unit CN1 Power supply connector CN2 Low voltage connector CN4 Serial transmission connector PB panel connector GR1 CN10 PB panel connector GR2 CN11 PB panel connector GR3 CN12 Power switch...
  • Page 72 12.7.11 Wiring diagram code WY18090047 - WY18090048 *GICAR* White Blue Power cable MA BL NE GR Heating unit Power supply connector Low voltage connector Serial transmission connector CN10 PB panel connector GR1 CN11 PB panel connector GR2 CN12 PB panel connector GR3 CN14 Steam outlet connector CN18 Connector Warmer connect.
  • Page 73 12.7.12 Wiring diagram code WY18090079 - WY18090080 Air pump supply White Blue Power cable Heating unit MA BL NE GR Power supply connector Low voltage connector Display card conn. connector Serial transmission connector Programm. connector ISP Cup warmer heating el. connector CN10 GR1 pushbutton panel connector CN11...
  • Page 74 18090080A - 1 12.7.13 Wiring diagram code WY18090080A 400V TRPA USB1 CN14 JP12 CN13 CN18 CN17 CN12 JP20 JP11 RL10 CN16 CN11 JP10 CN15 CN10 Air pump supply GR2 solenoid valve Main switch Black White GR3 solenoid valve GR1 manual switch Vcc air pump Blue GR4 solenoid valve...
  • Page 75 18090080A - 2 PUSHBUTTON PANEL connectors POWER SUPPLY connector - Neutral GR1 pushbutton panel CN10 GR2 pushbutton panel Phase CN11 GR3 pushbutton panel CN12 GR4 pushbutton panel CN13 INLET connector GR4 ow meter GR3 ow meter GR2 ow meter GR1 ow meter OUTLET connector Heating unit safety probe Heating unit level probe...
  • Page 76 12.7.14 Wiring diagram code WY18090051 - WY18090052 Milk pump supply White Blue Power cable MA BL NE GR Heating unit Power supply connector Low voltage connector Display card conn. connector Serial transmission connector Programm. connector ISP CN10 GR1 pushbutton panel connector CN11 GR2 pushbutton panel connector CN12...
  • Page 77 12.7.15 Wiring diagram code WY18090018 - WY18090019 White Blue Battery MA BL GR GV Power cable Heating unit Membrane connection Power supply and services outputs Not managed Heating unit level probe 400V connect. Programm. inter. connect. Connect. with display card Power switch Power supply connector Volumetric counter...
  • Page 78 18090315 - 1 12.7.16 Wiring diagram code WY18090315 Blue CAB Power cable CAL Heating unit CN1 Power supply connector CN2 Inlet connector CN3 Display connector CN4 Till serial connector CN5 Wi-Fi telemetry connector CN7 Bluetooth connector 400V CN8 RS485 connector CN10 GR1 pushbutton panel connector CN11 GR2 pushbutton panel connector CN12 GR3 pushbutton panel connector...
  • Page 79 18090315 - 2 PUSHBUTTON PANEL connectors POWER SUPPLY connector - Neutral GR1 pushbutton panel CN10 GR2 pushbutton panel Phase CN11 GR3 pushbutton panel CN12 GR4 pushbutton panel CN13 INLET connector GR4 ow meter GR3 ow meter GR2 ow meter GR1 ow meter OUTLET connector Heating unit safety probe Heating unit level probe...

  • Page 80: Hydraulic Diagrams

    13. HYDRAULIC DIAGRAMS 13.1 LEVER GROUP hydraulic diagram Steam valve Hot water valve Negative pressure valve Safety valve Pressure switch Heating unit Dispensing group Heating unit heating element Valve 10 Optical level 11 Pressure gauge 12 Water inlet filter 13 Automatic Water Entry solenoid valve (optional) 14 Manual water inlet valve 15 Drain tray 16 Drain...

  • Page 81: Ema - Epu Dispensing Group

    13.2 EMA - EPU DISPENSING GROUP hydraulic diagram Internal motor pump Water softener Water inlet filter Built-in motor pump Pump pressure adjustment Manual water inlet valve SCNR valve Drain tray Pressure gauge Optical level 10 Heating unit 11 Heat exchanger 12 Dispensing group 13 Hot water valve External motor pump...

  • Page 82: Evd - Display Dispensing Group Hydraulic

    13.3 EVD - DISPLAY DISPENSING GROUP hydraulic diagram Internal motor pump Water softener Water inlet filter Built-in motor pump Pump pressure adjustment Manual water inlet valve SCNR valve Drain tray Pressure gauge Optical level 10 Heating unit 11 Heat exchanger 12 Dispensing group 13 Hot water valve 14 Steam valve...

  • Page 83: Credit-Debit And Debit-Credit Systems

    14. CREDIT-DEBIT and DEBIT-CREDIT SYSTEMS 14.1 CREDIT-DEBIT system 14.1.1 Installation Serial connection cable (supplied), code: WY22556005 The CREDIT-DEBIT function is active in the PLUS1 electronic control units with the code WY18090047-WY18090048 (with- out display), PLUS2 with code WY18090079-WY18090080 Serial transmission cable (not supplied), (with display) and PLUS3 with code WY18090051- code: WY22556004 (max.
  • Page 84 connector JP14 JP12 BLACK connector JP14 +5Vcc JP12 TECHNICIANS' manual...
  • Page 85 14.1.2 Communication protocol Description of the operating principle with reference to the diagram shown below: • Order the beverage at the till. • The till sends the reserved selection-related code to the machine. • Select the ordered dose on the coffee machine. • The code that corresponds to the selection is sent to the till (see the code table).
  • Page 86 14.1.3 Beverage selection code table DESCRIPTION SIGNAL RELAY I/O CONNECTOR REF. 1 GR1 Espresso 011 h CN7-1 1 GR1 Medium 012 h CN7-2 1 GR1 Large 013 h CN7-3 2 GR1 Espressos 014 h CN7-4 2 GR1 Medium 015 h CN7-5 2 GR1 Large 016 h...

  • Page 87: Debit - Credit System With Direct Connection

    14.2 DEBIT - CREDIT system with direct connection to the TILL 14.2.1 Installation The DEBIT-CREDIT function is active in the PLUS1 electronic Serial connection cable (supplied), code: control units with the code WY18090047-WY18090048 (with- WY22556005 out display), PLUS2 with code WY18090079-WY18090080 (with display) and PLUS3 with code WY18090051- WY18090052 (model with cappuccino maker/automatic steam wand) with a software programme dated 20/05/05 or...
  • Page 88 connector JP14 JP12 BLACK connector JP14 +5Vcc JP12 TECHNICIANS' manual...
  • Page 89 14.2.2 Communication protocol Description of the operating principle with reference to the diagram shown below: • Select the desired dose on the coffee machine. • The code that corresponds to the selection is sent to the till (see the code table). • The till replies with ACK=1H, thus enabling the beverage to be dispensed.
  • Page 90 14.2.3 Beverage selection code table DESCRIPTION SIGNAL RELAY I/O CONNECTOR REF. 1 GR1 Espresso 011 h CN7-1 1 GR1 Medium 012 h CN7-2 1 GR1 Large 013 h CN7-3 2 GR1 Espressos 014 h CN7-4 2 GR1 Medium 015 h CN7-5 2 GR1 Large 016 h...

  • Page 91: Debit - Credit System With Connection

    14.3 DEBIT - CREDIT SYSTEM with connection to the INTERFACE 14.3.1 Beverage selection code table RELAY GROUP DOSE BUTTON Common HTW signals Common HTW signals ABHART* GND* TECHNICIANS' manual...
  • Page 92 14.3.2 PLUS 1-2 type (GIEMME type) system 34 33 08/05/05 R (Vcc+) N (GND) JP14 JP12 JP14 JP12 +5Vcc Components to be used for the INTERFACE - COFFEE MA- CHINE connection: • Code WY26015 26-relay interface Interface kit code WY83260002R. • Code WY22550 Hartwall cable • Code WY22551 Power cable • Code WY22555 4-pole serial transmission cable...
  • Page 93 14.3.3 PLUS 1-2 (GICAR type) system RL01 RL13 RL25 RL02 RL14 RL26 RL03 RL15 RL04 RL16 33 34 RL05 RL17 RL06 RL18 RL07 RL19 RL08 RL20 25 26 RL09 RL21 RL10 RL22 RL11 RL23 RL12 RL24 08/05/05 R (Vcc+) N (GND) JP14 JP12 JP14...
  • Page 94 14.3.4 PLUS 3 type system RL16 RL15 RL14 RL13 RL12 RL11 RL10 RL24 RL23 RL22 RL21 RL20 RL19 RL18 RL17 39 40 RL32 RL31 RL30 RL29 RL28 RL27 RL26 RL25 08/05/05 R (Vcc+) N (GND) JP14 JP12 JP14 +5Vcc JP12 TECHNICIANS' manual...
  • Page 95 Components to be used for the INTERFACE - COFFEE MA- DOSE RELAY I/O CONNECTOR REF. CHINE connection: 1 GR1 Espresso CN7-1 • Code WY26016 32-relay interface 1 GR1 Medium CN7-2 • Code WY22554004 Hartwall cable 1 GR1 Large CN7-3 • Code WY22551 Power cable 2 GR1 Espressos CN7-4 • Code WY22555 4-pole serial transmission cable...
  • Page 100 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 Code: WY02000353 - Rev. 11 - 05/2021...

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