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- Page 1 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 2006/42/CE Machinery Directive EVDS MACHINE FOR ESPRESSO COFFEE Use and maintenance manual. Instructions for the TECHNICIAN.
- Page 2 IMPORTANT: Read carefully before use - Store for future reference Content rights The partial reproduction and dissemination of the contents in this document without the prior written consent of the Manufacturer is forbidden. The Company logo is owned by the Manufacturer of the Machine. Responsibility We are constantly committed to improving the accuracy of information published in every Manual;...
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Page 3: Table Of Contents
ESPRESSO COFFEE MACHINE Use and maintenance manual. Instructions for the TECHNICIAN. English Summary 1. INTRODUCTION ............... 4 7. PROGRAMMING ..............30 Guidelines for reading the Manual ........4 Programming coffee doses ..........30 Storing the Manual ............... 4 Programming the Stand-by ..........31 Method for updating the Instruction Manual ...... -
Page 4: Introduction
INTRODUCTION ABBREVIATIONS Sect. = Section Chap. = Chapter Read this manual carefully. It provides important Par. Paragraph information on the safety to the Technician during the Page operations indicated in this document. Fig. Figure Keep this Manual in a safe place. If you lose it, you can Tab. -
Page 5: Method For Updating The Instruction Manual
Method for updating the Instruction QUALIFICATION OF RECIPIENTS The machine is intended for professional and not Manual generalized use, so it can be used by Qualified Techni- The Manufacturer reserves the right to modify and cians, in particular who: make improvements to the machine without notifying Have attended the training courses organized by the it and without updating the Manual already delivered. -
Page 6: Guarantee
Obligation to read the documentation automatically invalidates any guarantee. Customer service WEGA MACCHINE PER CAFFÈ S.r.l. Via Condotti Bardini, 1 - 31058 SUSEGANA (TV) - ITALY Tel. +39.0438.1799700 - Fax +39.0438.1884890 E-mail: info@wega.it - Web-site: www.wega.it... -
Page 7: Identification Of The Machine
IDENTIFICATION OF THE MACHINE INTENDED USES The machine is designed exclusively for professional use. Make and model designation The use of products/materials other than those speci- fied by the Manufacturer, which can cause damage to The identification and the model of the machine are the machine and dangerous situations for the operator found on the NAMEPLATE and in the EC DECLARATION and/or those close to the Machine, is considered incor-... -
Page 8: Illustration Of The Machine
Illustration of the machine 1GR version 2GR COMPACT version 2GR version TECHNICIANS manual... - Page 9 Tank (where envisaged). Hot water dispensing knob. Steam dispensing knob. Push-button panel for coffee selections. Work top led switch. Hot water dispensing spout. Steam nozzle. Adjustable foot. Anti-scald protection. 10. Gauge. 11. Machine ON switch. 12. Boiler level warning light. 13.
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Page 10: Internal Components
Internal components 1GR version 2GR COMPACT version TECHNICIANS manual... - Page 11 2GR version Pressure switch. 19. Dispensing unit 2GR COMPACT. SCNR valve. 20. Coffee boiler 2GR COMPACT. Internal tank (if envisaged). 21. Boiler 2GR COMPACT. Water filter tank (if envisaged). 22. Boiler 2GR. Volumetric doser unit. 23. Dispensing unit 2GR. Vibrator pump (with internal tank). Services fuse.
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Page 12: Data And Ce Marking
Below is an example of the nameplate: MARCHIO COMMERCIALE WEGA MACCHINE PER CAFFÈ S.r.l. Via C. Bardini,1 SUSEGANA (TV) - ITALY Tel. +39.0438.1799700 Fax +39.0438.1884890 The CE tag is affixed to the S/N: Mod. - Page 13 2.6.1 Boiler versions 1GR and 2GR 2.6.3 2GR COMPACT services boiler version The boiler (1) is fitted with an internal heat exchanger In the 2GR COMPACT version, a boiler for the services which is connected to the dispensing unit. Water for cof- (6) is installed, i.e.
- Page 14 2.6.7 Dispensing unit 1GR 2.6.8 Dispensing unit 2GR For this version, heating of dispensing unit (1) takes For this version as well, heating of the dispensing unit place by means of a thermo-syphon circuit (2) connected (1) takes place by means of a thermo-syphon circuit (2) to the heat exchanger (3).
- Page 15 2.6.9 Dispensing unit 2GR COMPACT 2.6.11 Safety thermostat In this version, the heating of the dispensing unit (6) The thermostat allows you to avoid damage to the takes place by means of an electrical resistor (7). electrical resistance in case of lack of water in the boiler. The unit’s temperature is controlled by an adjusting In the 1GR and 2GR COMPACT versions, thermostat thermostat (8) and by safety thermostat (9).
- Page 16 2.6.12 Pump 2.6.15 Automatic Water Entry This is a component that feeds the machine, raising The Automatic Water Entry system is for checking the the water pressure to 8 - 9 bar for coffee dispensing and boiler level. It is made up by: automatic filling of the boiler.
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Page 17: Transport And Handling
2.6.17 Filter for the water mains TRANSPORT AND HANDLING In the water from the mains, non- Safety precautions soluble salts are present that are causing the formation of limestone Handling operations must always and exclusively be performed in the boiler and in other parts of the by qualified personnel and in compliance with applicable safety machine. -
Page 18: Handling The Packed Machine
Handling the packed machine STORAGE Upon arrival, the machine must be unloaded and Overview handled with care, carefully following the instructions on the packaging, or those contained in this Manual. In the waiting period prior to installation, the ma- chine must be stored by the Manufacturer or Authorized Distributor. -
Page 19: Installation
INSTALLATION DPI characteristics During installation of the machine, the following PPE Safety precautions are required: Installation must always and exclusively be performed by qualified personnel and in compliance with applicable safety and health Mandatory use of protective gloves regulations. This appliance is to be considered completely safe only when it is connected to an efficient earthing system which is in compliance with safety standards. -
Page 20: Support Base
Base plane Hydraulic connection to the water mains To ensure a sufficient degree of ergonomics and safety to the machine, it is necessary to provide a support base 5.6.1 Water supply with the following characteristics: The water supply of the appliance must be carried out with water which is suitable for human consump- Make sure that there is sufficient space for placing and correctly using the machine;... - Page 21 5.6.4 Description of the hydraulic system Support base Grinder-dispenser 20 cm minimum distance between the machine and the wall Discharge tub Water supply inlet Adjustable feet Electrical power switch Water filter inlet Water filter outlet 10. Sewer drain 11. Water supply tap 12.
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Page 22: Hydraulic Connection To The Tank
Hydraulic connection with tank 5.7.1 Internal tank Fill the tank only with cold potable water. Do not use other types of liquids or carbonated beverages. Operating without water may In the version with internal tank, the operations for damage the machine. connecting to the water mains are not required since the After extended periods of machine inactivity the water in the water is provided by the machine’s internal tank. -
Page 23: Conversion From Tank To Water Mains
Conversion from tank to water mains (1GR version) Through this procedure the machine’s type of water supply can be modified from Internal Tank to Water Mains 5.8.1 Components of the assembly kit Tuboflex Pressure reducer Spherical tap Automatic coupling joint Straight fitting 1/8M - 1/8M Non-return valve Copper gasket... - Page 24 5.8.2 Assembly procedure screw the fastening washer to the reducer’s casing; Assemble the pressure reducer components, supplied in the specific box; after having assembled the pressure reducer, proceed with the mounting of the Kit. Install the straight fit- tings on the pressure reducer, adding sealant; screw the gauge on the reducer casing, adding some sealant;...
- Page 25 mount the "L" fitting to the hose inserting the teflon screw the straight fitting complete with filter to the gasket; "L" fitting, using sealant; on the other end of the hose, place another teflon mount the rubber gasket on the network filter and gasket and screw this end to the check valve;...
- Page 26 position a teflon gasket on the other hose supplied remove the machine’s side undoing the two fasten- in the kit and fit it to the tap; ing screws; position another teflon gasket on the end of the hose and mount the snap coupling; close the water inlet tap mounted on the lower side of the tank;...
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Page 27: Electrical Connection
position the switch on the left of the machine to "O"; Electrical connection Installation must be done in accordance with the safety standards in force in the country of installation. The owner / manager of the equipment must give confirmation to the installer that the electrical system conforms to the requisites specified above. -
Page 28: Commissioning
COMMISSIONING Coffee grinding To adjust the coarseness of the ground coffee, use Safety precautions the appropriate regulator located on the hopper of the grinder-dispenser. The following residual risks are present during the commissioning of the machine and cannot be elimi- nated: Electrical hazard: Cups lifting racks... -
Page 29: Machine Shutdown
Before switching machine on 6.6.1 Switch-on of 1GR and 2GR COMPACT Open the water tap of the water mains and of the softener. Turn the machine on using the main switch of the machine (11). Before using the machine, wait a few minutes (approx. 10 min.) until gauge (10) will indicate the correct work pressure (1-1.2 bar). -
Page 30: Water Replacement
Water replacement PROGRAMMING During the installation of the machine, the Qualified Programming coffee doses Technician must replace the water contained in the hy- draulic circuits by following these steps: Fill the filter with a dose of ground coffee and press when installation is complete, the appliance has to it with the coffee press;... -
Page 31: Programming The Stand-By
Programming the Stand-by to get the temperature of the coffee boiler, count the number of flashes of each of the LEDK3, LEDK4 and to activate machine’s stand-by function, proceed as LEDK5 as follows: follows: Hundreds (100) press the K5 button relative to unit 1 (RH); Tens (10) press K3, checking that all LEDS on the keypad/s will switch off;... -
Page 32: Programming Of Pre-Infusion
Programming the Pre-infusion Programming adjustment (for the 2GR COMPACT version) of the pump’s operation (for the 2GR COMPACT version) To activate the pre-infusion function proceed as fol- lows: The programming of the pump’s activation is car- Enable the Stand-by status as indicated in paragraph ried out by the phase voltage slicing during dispensing. -
Page 33: Pre-Setting Values
Example 1: MAINTENANCE AND CLEANING To switch: from NON ACTIVE FUNCTION to PUMP ACTIVE at 93% Press K2 3 times Safety precautions Perform only the maintenance and cleaning operations described Example 2: in this manual. To switch: If the problem cannot be solved, turn the machine off and contact from pump ACTIVE at 90% to NOT ACTIVE FUNCTION Press K1 4 times... -
Page 34: Maintenance
Maintenance 8.3.1 Scheduled maintenance Perform the following maintenance according to the specified frequency. In case of intensive use of the machine the checks need to be performed in smaller intervals. Component Type of intervention Quarterly Yearly Check the boiler pressure, which must be between 0.8 and 1.4 bar. GAUGE Periodically check water pressure during coffee dispensing: check the pressure indicated on the gauge, which must be between 8 and 9 bar inclusive. - Page 35 Component Type of intervention Quarterly Yearly PRESSURE GAUGE AND Check for proper operation of the pressure gauge and pressure switch. PRESSURE SWITCH ELECTRIC SYSTEM Check and clean the volumetric dispenser by removing any oxidation from the terminals. MOTOR PUMP Visually inspect the machine wires conditions VIBRATOR PUMP 8.3.3 Dispensing group maintenance On the internet site of the Manufacturer all original spare parts...
- Page 36 8.3.4 Checking of the SAFETY VALVE 8.3.5 Checking of the VACUUM RELIEVING VALVE The Pressure relief valve is one of the main compo- First check (only for 2GR version): nents for the machine safety. Therefore, it is important Remove the top grill of the machine; to carry out the following checks: use pliers to push the pin (2) downwards;...
- Page 37 8.3.6 Checking the DISCHARGE-CHECK VALVE The discharge-check valve is an important compo- nent for the correct to machine operation. Perform the check as follows: Activate the dispensing groups for about 30 seconds; attach a filter holder (5) with a gauge (available on request) to the dispens- ing group;...
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Page 38: Malfunctions And Relative 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 defective. Replace the main switch. MACHINE LACKING POWER The mains power supply switch is in the OFF position. Place the main switch in the ON position. - Page 39 Problem Cause Action The filter holder is dirty. Clean the filter holder. The filter holes are worn. Replace the filter. GROUNDS IN CUP The coffee is not ground evenly. Replace the grinders. The seal under the pad is worn. Replace the seal. The pressure in the pump is too high.
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Page 40: Water Filter For The Internal Tank
Problem Cause Action The connection of the volumetric dosing device is Check for proper connection of the volumetric dosing faulty. device connector. The connection of the electronic control unit is faulty. Check for proper connection of the 8/10-pin connec- The connector of the volumetric dosing device has tor of the electronic control unit. -
Page 41: Water Filter For Water Mains
Water filter for the water mains 8.6.2 By-pass configuration Depending on the hardness of the water, adjust the 8.6.1 Water hardness detection by-pass of the water filter as shown in the table below. Example: As part of the filter maintenance, it is advisable to test the water beforehand. - Page 42 8.6.3 Technical data Model Connection type 3/8" 3/8" 3/8" 3/8" Water supply pressure min.-max (bar) Water temperature 4-30 4-30 4-30 4-30 min.-max. (°C) Ambient temperature 4-40 4-40 4-40 4-40 min.-max. (°C) Total height (A) without bracket (mm) Total height (B) with bracket (mm) Connection (C) height (mm)
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Page 43: Regeneration Of The Water Softener
Regeneration of the water softener In order to keep the softener, and hence the machine, in perfect operating condition, it is necessary to regener- It is very important to regenerate the softener within ate it regularly, based on use of the softener and hardness the established times. -
Page 44: Cleaning Operations
Cleaning operations 8.8.2 Filter and filter-holder cleaning Daily: 8.8.1 General instructions Soak the filter and filter-holder in hot water so that For perfect hygiene and efficiency of the unit, a few the fatty coffee deposits can dissolve; simple cleaning tasks are required. The indications given rinse with lukewarm here are applicable for normal use of the coffee machine. - Page 45 8.8.4 Cleaning of strainer and strainer carrier 8.8.6 Cleaning of the internal tank (if fitted) Carry out the cleaning of the strainer and strainer Clean the tank weekly in the following way: carrier on a weekly basis, with the following steps: Extract the tank from its housing;...
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Page 46: Spare Parts
SPARE PARTS DISPOSAL For the replacement of components and/or parts of Information for disposal the machine, refer to the official documentation provided 12.1 by the Manufacturer. Only for the European Union and the European Eco- nomic Area. All original spares are available by consulting the Manufacturer’s internet website. -
Page 47: Electrical Diagram
ELECTRICAL DIAGRAM Electrical diagram 1GR 13.1 BI/NE CN15 CN11 CN16 REED BI/NE PRSE White Boiler filling solenoid valve BI/NE White/Black Dispensing solenoid valve Blue Power supply fuse (15A) Boiler Fuse (6.3A) Level led Grey +12V TXRS232 RXRS232 NTC 1 Yellow ING.PRESS. -
Page 48: Electrical Diagram 2Gr Compact
Electrical diagram 2GR COMPACT 13.2 BI/NE CN15 CN11 CN16 REED BI/NE PRSE White Solenoid valve GR2 BI/NE White/Black Boiler filling solenoid valve Blue Power supply fuse (15A) Boiler Fuse (6.3A) Level led Grey +12V TXRS232 RXRS232 NTC 1 Yellow ING.PRESS. Auxiliary ON switch Auxiliary... -
Page 49: Electrical Diagram 2Gr
Electrical diagram 2GR 13.3 BI/NE CN15 CN11 CN16 REED BI/NE PRSE White Solenoid valve GR1 BI/NE White/Black Solenoid valve GR2 Blue Boiler filling solenoid valve Boiler Power supply fuse (15A) +12V TXRS232 Level led Fuse (6.3A) RXRS232 ING.PRESS. NTC 1 Grey Auxiliary Yellow... -
Page 50: Hydraulic Diagram
HYDRAULIC DIAGRAM Hydraulic diagram 1GR 14.1 Version with connection to Water Mains Water mains inlet 13 Discharge tub Water inlet filter 14 Boiler heating element Non-return valve 15 Coffee exchanger Pressure reducer 16 Boiler 17 Pressure gauge Water tank 18 Safety valve Pump 19 Vacuum relieving valve By-pass valve... -
Page 51: Hydraulic Diagram 2Gr Compact
Hydraulic diagram 2GR COMPACT 14.2 Version with connection to Water Mains Water mains inlet 13 Tap Water inlet filter 14 Boiler services pump Non-return valve 15 Services boiler solenoid valve Pressure reducer 16 Water tank Unit pump 17 Services boiler Discharge tub 18 Services boiler heating element SCNR valve... -
Page 52: Hydraulic Diagram 2Gr
Hydraulic diagram 2GR 14.3 Water mains inlet 12 Dispensing group Water inlet filter 13 Group solenoid valve Non-return valve 14 Boiler Pressure reducer 15 Boiler heating element Pump 16 Heat exchanger Boiler solenoid valve 17 Pressure switch Pressure gauge 18 Vacuum relieving valve SCNR valve 19 Safety valve Discharge tub... -
Page 53: Alphabetical Index Of Topics
ALPHABETICAL INDEX Internal components Internal tank filter OF TOPICS Internal tank water filter Lighting Absorbed power Machine dismantling Automatic Water Entry Machine disposal Machine handling Blind filter Machine identification Boiler Machine installation Machine storage Machine transport CE - mark CE nameplate Machine turn-off Circuit breaker Maintenance... - Page 54 Tank hydraulic connection Technical data Thermostat Turning the machine on Unpacking the machine Vacuum relieving valve Values pre-set Voltage Volumetric dosing Washing of steam spout Water hardness Water mains filter Water mains hydraulic connection 20 Water replacement Water supply Weight Wiring diagrams Work surface light TECHNICIANS manual...
- Page 56 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 02000616 - Rev. 00 - 09/2016...
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