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VKI Technologies Eccellenza Express Service Manual Download Page 49

Eccellenza Express – Service Manual 

 

July 15, 2015 

 

49

 

Replacing the Bean Grinder 

1.

 

Switch the machine power off and unplug the service cord. 

2.

 

Remove the left side panel 

(

see page 13

)

. 

3.

 

Remove the top cover

 (

see page 15

)

. 

4.

 

Remove the left bean hopper 

(

see page 23

)

. 

5.

 

The top of the machine should look like the image below.  The access holes for 

the grinder mounting screws are now exposed. 

 

6.

 

Disconnect the wiring from the grinder. 

 

Summary of Contents for Eccellenza Express

Page 1: ...VKI Publication 100271 001 July 15 2015 Service Manual Contact Customer Service Service à la clientèle 800 567 2951 Technical Support Soutiens technique 888 854 0207 ...

Page 2: ...Eccellenza Express Service Manual 2 July 15 2015 ...

Page 3: ...ean Hopper 23 Replacing a Coffee Bean Dispenser Motor 24 Replacing a Powder Dispenser 25 Replacing a Powder Dispenser Motor 27 Replacing the Power Supply 29 Replacing the Control Options Boards 32 Replacing the Expansion Board and LCD Display Touch Panel 34 Expansion Board 35 LCD Display and Touch Panel 36 Replacing the Temperature Probe 38 Replacing the Outlet Valves 40 Replacing the Water Tank 4...

Page 4: ...rs 62 Install the coin changer housing 63 Install the coin changer assembly 64 Test the machine and the coin changer system 65 Installing the Printer System 66 Installing the Printer and Housing 66 Printer Buttons 67 Paper Specifications 67 Installing the Printer Paper Roll 68 Automatic Paper Loading 69 Manual Paper Loading 69 Printer Status LED 70 Machine Messages 70 Replacing the Printer Module ...

Page 5: ...upply pressure must be between a minimum of 20psi and a maximum of 100psi This equipment must be positioned so that the wall plug and the main power switch are both easily accessible Do not connect the coffee maker to a voltage supply other than the voltage indicated on the serial number decal Do not immerse this coffee maker or any part of this equipment in liquid Do not install the equipment in ...

Page 6: ... working properly or appears to have a fault switch off the power disconnect the service cord and call an authorized technician immediately for service Only qualified personnel should perform service on this equipment Use caution when servicing the water heater or the outlet valves as they may be extremely hot and can cause severe burns Use caution when working inside the coffee maker as there may...

Page 7: ...Equipment Overview Interior Buttons Cup Stand and Grill Whipper Waste Bin Coffee Bean Grinder Powder Hoppers Coffee Bean Hoppers Grounds Tray Brewer Coffee Bean Hoppers LCD Display and Selection Buttons Touch Screen Front Door Lock Cup Stand and Grill ...

Page 8: ...ston will move to the top of the cylinder water will pour in and the brewer will pause for about 5 minutes During this time the cleaner breaks down all the oils and stains that have accumulated in the brewer b After the 5 minutes have elapsed the brewer will cycle dumping the cleaner into the waste container in the process The brewer will then automatically cycle water seven consecutive times to r...

Page 9: ...preparing a coffee beverage however only hot water will be dispensed into the brewer without coffee grounds Repeat this process if necessary Powder Whipper Rinse Cycle 1 Press the RINSE CYCLE button on the control panel inside the front door 2 Select the type of rinse cycle required For a whipper rinse press the Powder Rinse button on the screen to begin the cycle a The machine will now dispense h...

Page 10: ...e grounds and spills from the exterior of the machine and the countertop Weekly Clean the Grounds Tray and Floor Liner empty and clean the grounds tray located below the brewer Remove and clean the floor liner over the base of the machine Wipe Interior Walls and Door using a clean towel wipe any coffee grounds and spills from the interior of the machine and the front door Perform a Brewer Quick Ri...

Page 11: ... hoses tubing clamps fittings and water related components valves water tank etc for signs of wear or damage Replace them if required Clean the Coffee and Powder Hoppers the hoppers should be emptied of product and given a thorough cleaning to remove stains and oils that may have accumulated inside them Clean and or Adjust the Grinder remove the grinder cover and clean the area around the grinding...

Page 12: ...ainer with a mixture of water and sanitizer the mixture is 2ml of sanitizer per liters of water 2 Remove the components identified above from the machine 3 Place them inside the container with the sanitizing solution Let them soak for 5 minutes 4 While the components soak fill a spray bottle with the sanitizing solution 2ml sanitizer per liter of water 5 Lightly spray the solution to the exterior ...

Page 13: ...de Panels 1 Open the front door 2 Two screws secure each panel at the front of the machine Remove the two screws securing the side panel that needs to be removed 3 Pull the front of the panel outwards and then towards the back to unlock it at the rear of the machine ...

Page 14: ... and disconnect the service cord from the wall outlet 2 Turn the machine so that you have access to the rear panel 3 Remove the two screws 4 Lift the bottom of the panel until the panel is completely open The top of the panel is hinged and the machine top cover is angled so the panel will remain open on its own ...

Page 15: ...ower OFF and disconnect the service cord from the wall outlet 2 Unlock the bean hopper cover and remove it 3 Remove the individual hopper lids 4 Remove the two screws securing the top cover at the front and remove the two screws securing the top cover at the rear 5 Lift the top cover to remove it ...

Page 16: ...achine and remove the waste bin 2 Disconnect the hose from the brewer and disconnect the powder and hot water hoses from the spout support 3 While lifting the front of the brewer slightly press down on the top of the spout support plate and pull it towards the front until it clears the brewer spout and can be removed ...

Page 17: ... slit on the front of the base 5 While lifting the brewer tilt the spout bracket upwards and to the back until it clears the brewer spout If done properly the brewer spout will enter the hole on the spout support plate and secure it in place 6 Reconnect the powder and hot water hoses to the spout support and reconnect the brewer hose ...

Page 18: ...the Brewer Removing the Brewer 1 Remove the spout bracket support see page 16 2 Press down on the brewer release latch and pull the top of the brewer forward to release it You may need to lift it slightly to clear the two bottom brewer guides 3 Remove the brewer ...

Page 19: ...gned use the optional brewer crank tool to adjust the brewer pin 5 Sit the brewer onto the two lower guides 6 Push the top of the brewer towards the rear making certain the brewer pin engages properly into the brewer motor coupling Once coupled press down on the brewer release latch until the brewer moves into position and then release the latch to lock the brewer in place ...

Page 20: ...by a large clip 3 Remove the security plug from the end of the drain hose valve 4 Place the hose inside a waterproof container and open the valve at the end of the hose Water will start draining into the container CAUTION the water being drained may be extremely hot 5 Once emptied close the valve at the end of the hose re install the security plug into the valve and re install the drain hose onto ...

Page 21: ...e Brewer Motor 1 Remove the brewer from the machine see page 18 2 Remove the right side panel see page 13 3 Remove the four screws securing the brewer bracket assembly to the machine 4 Disconnect the wiring from the brewer motor the home switch and ground terminal ...

Page 22: ...tab and lock washers they must be re installed onto the replacement motor 8 Install the brewer switch plate onto the replacement motor three screws making certain to re install the ground tab and lock washers 9 Install the mounting plate onto the new motor four screws 10 Reconnect the wiring to the brewer motor the home switch and reconnect the ground terminal 11 Re install the brewer bracket asse...

Page 23: ... from the Eccellenza Express 1 Remove the top cover see page 15 2 Remove the two screws securing the bean chute cover to the top of the machine and lift the cover to remove it 3 Lift the front of the bean hopper to be removed and pull it forward until it clears the motor coupling at the rear To install the replacement coffee bean hopper follow these same instructions in the reverse order ...

Page 24: ...bean dispenser motors in the Eccellenza Express 1 Remove the top cover see page 15 2 Remove the coffee bean hoppers see page 23 3 Disconnect the power wires from the motor that is to be replaced 4 Remove the two screws securing the motor to be replaced from the support bracket To install the replacement coffee bean dispenser motor follow these same instructions in the reverse order ...

Page 25: ...t side of the bracket locks into the wall whereas the right side of the bracket clips in place Once the right side is pulled off the left side will be free from the wall 2 Lift the front of the powder dispenser and pull it forward to remove it 3 Insert the new dispenser already filled onto the dispenser base making certain the coupling on the dispenser engages with the coupling on the dispenser mo...

Page 26: ...lock it in place a pin at the bottom of the dispenser must enter a hole in the dispenser base locking it in place 5 Install the retaining plate to secure the hoppers in place Lock the left side into the slot on the wall and push the right side onto the hopper support until it clips in place ...

Page 27: ...der Dispenser Motor 1 Open the front door and remove the powder dispensers see page 25 2 Remove the three screws securing the motor cover and then remove the cover 3 Remove the two screws securing the motor that requires replacing 4 Remove the motor from the support ...

Page 28: ... Service Manual 28 July 15 2015 5 Disconnect the power wires inline connector from the motor that needs to be replaced To install the replacement powder dispenser motor follow these same instructions in the reverse order ...

Page 29: ...isconnect the service cord 2 Remove the right side panel see page 13 3 Open the rear service panel see page 14 4 Remove the plastic protector caps from the two terminal blocks on the power supply 5 Disconnect the four wires from the upper terminal block and disconnect the three wires from the lower terminal block ...

Page 30: ...rance between the screw head and the power supply to clear at least one thickness of sheet metal 9 Install the new power supply to the wall by sliding the screws into the keyholes slots Tighten all three screws to secure the power supply to the wall 10 Connect the three wires to the lower terminal block With the three screws loosened on the terminal block at the bottom of the power supply insert t...

Page 31: ...n the screws to secure the terminals in place a Terminal Screw 1 Red wire b Terminal Screw 2 Red wire c Terminal Screw 3 Blue wire d Terminal Screw 4 White wire 12 Install the plastic protector caps onto the two terminal blocks on the power supply 13 Re install the machine s right side panel and close the rear service panel 14 Reconnect the service cord to the wall outlet 15 Switch the machine pow...

Page 32: ...cord 2 Open the rear service panel see page 14 3 Disconnect all of the wiring harness connectors from the control board options board assembly Also disconnect the ground wires from the tab on the control board heat sink 4 Lift the control board options board assembly upward until it clears the board support bracket and remove the board assembly ...

Page 33: ...sink Start by connecting the rear harnesses first 7 When reconnecting the single black and single red wires the black wire connects to J 12 and the red connects to J 13 8 Close the rear service panel 9 Reconnect the service cord to the wall outlet 10 Switch the machine power on and test the equipment operation NOTE The wiring connectors are matched with their respective connectors on the board ass...

Page 34: ...procedure will guide you through the process of replacing the LCD display and the touch panel 1 Open the front door of the machine 2 Remove the expansion board cover a Open the clip and remove the wiring harness from it b To remove the cover remove the four screws securing the cover to the door LCD Display Expansion Board ...

Page 35: ...expansion board b Remove the screws securing the expansion board to the door 4 To install the expansion board a Align the expansion board with the standoffs on the front door b Secure the expansion board to the door using six screws c Connect all of the wiring connectors to the expansion board Each connector is polarized to help simplify connections ...

Page 36: ...door c Remove the two bottom screws securing the display to the door This will also free the touch panel which will slide down from between the LCD and front door 6 To install the LCD display and touch panel onto the front door a Align the touch panel with the two lower guides on the inside of the front door CAUTION Use caution when handling the LCD display and the touch panel as both of these ass...

Page 37: ...ertain that the touch panel stays positioned between the display and the door while installing the two screws c With the touch panel and the LCD display properly aligned install the two top screws to secure both to the front door d Make the necessary wiring connections for the LCD display and the touch panel 7 Reinstall the expansion board cover and secure it in place with four screws Touch Panel ...

Page 38: ...supply 2 Drain the water tank 3 Remove the top cover see page 15 4 Remove the coffee bean hoppers see page 23 5 Remove the bean dispenser motor assembly see page 24 6 Open the rear service panel see page 14 7 Remove the right side panel see page 13 8 Pull the temperature probe out of the grommet securing it to the top of the water tank ...

Page 39: ...ower supply 10 Connect the wiring on the new temperature probe a Pass the inline connector on the temperature probe harness through the channel in the corner above the power supply b Connect the temperature probe to the inline connector on the machine harness 11 Insert the new temperature probe into the grommet on top of the water tank 12 Re install the right side panel and close the rear service ...

Page 40: ...sp the valve and pull it straight out You may need to twist it slightly to loosen it 5 To remove the powder and hot water valve manifold on the left side of the water tank grasp the valve and pull it straight out You may need to twist it slightly to loosen it NOTE The Eccellenza Express is equipped with a single outlet valve on the right side for the coffee and a dual outlet valve manifold on the ...

Page 41: ...by sliding it into its respective port on the water tank Make certain that both of the o rings are present on each valve and are the correct size and make certain that the valve is completely seated into the water tank 11 Reconnect the service cord and switch the machine power on 12 Allow the water tank to fill and inspect the machine for leaks Also inspect the outlet valve for any signs of drippi...

Page 42: ...s see page 13 3 Drain the water tank see page 20 4 Remove the top cover see page 15 5 Remove the coffee bean hoppers see page 23 6 Remove the bean dispenser motor assembly see page 24 7 Remove the temperature probe see page 38 8 Remove the outlet valves see page 40 9 Disconnect the wiring from the water level probes 10 Disconnect the wiring from the heater element ...

Page 43: ...ank up and out the top of the machine To re install the hot water tank follow these same instructions in the reverse order Removing the Heater Element Removing the Thermal Cut Off Switch With the water tank removed from the machine remove the water tank lid retaining bracket This allows you to open the water tank should the heater element or the thermal cut off switch need to be replaced ...

Page 44: ... the two clips securing the valve end cap to the valve body and gently remove the end cap There are two o rings located between the valve body and the end cap and they must be replaced when re assembling the valve 3 Remove the two clips securing the valve inlet to the valve body and gently remove the inlet There is an o ring located between the valve body and the inlet and it must be replaced when...

Page 45: ...sections apart Be careful not to lose the small orange o ring located between the two valve body sections 3 Remove the hex nut from the coil and remove the coil from the main valve body Be careful not to lose the small black spacer located between the coil and main valve body Overview of Outlet Valve Components Valve Body Outlet O Ring Valve Body Main Diaphragm Plunger Plunger Spring Plunger Housi...

Page 46: ... Be careful not to lose the small spring inserted into the end of the plunger 5 Pull the plunger assembly out of the main valve body This exposes the diaphragm installed onto the tip of the plunger 6 Remove the diaphragm by pulling it off of the tip of the plunger The spring on the other end of the plunger can also be removed To re assemble the outlet valve follow these same instructions but in th...

Page 47: ...y to the inlet valve 6 At the rear of the machine remove the two screws securing the inlet valve to the rear wall of the machine The valve can now be completely removed 7 Secure the new inlet valve to the rear of the machine with two screws NOTE The inlet valve consists of an assembly of hoses fittings and a backflow prevention valve secured together by Oetiker circle clamps To replace any compone...

Page 48: ...alve with a new circle clamp Oetiker 9 Reconnect the power wires to the valve 10 Re connect the water supply to the inlet valve 11 Switch the machine power on the inlet valve will open and the water tank will start filling 12 Check for leaks and repair if required 13 Re install the left side panel ...

Page 49: ...and unplug the service cord 2 Remove the left side panel see page 13 3 Remove the top cover see page 15 4 Remove the left bean hopper see page 23 5 The top of the machine should look like the image below The access holes for the grinder mounting screws are now exposed 6 Disconnect the wiring from the grinder ...

Page 50: ...Insert a Philips screwdriver through the access holes at the top of the machine and remove the four mounting screws for the grinder 8 The grinder can now be removed To re install the bean grinder simply follow these same instructions in the reverse order ...

Page 51: ...e power switched off remove the left side panel see page 13 2 Disconnect the inline wiring connector that supplies power to the whipper motor NOTE Replace the impeller if it has been removed and re installed multiple times as it may become loose on the whipper shaft and fall off during operation ...

Page 52: ...t hose 4 Turn the small handle on the locking ring on the whipper base to the right until it stops This unlocks the whipper chamber from the whipper base allowing it to be pulled off 5 Remove the screw securing the top of the whipper base to the machine wall and turn the handle on the locking ring to the left until it stops ...

Page 53: ...r 8 Install the new motor into the cutout in the machine wall Install the bottom of the assembly first and then push the top of the assembly into the cutout until the plastic clip locks it in place 9 Turn the handle on the locking ring completely to the right and secure the base to the wall with a screw 10 Insert the whipper chamber into the base making sure to also insert the chamber s inlet into...

Page 54: ...ap onto the whipper chamber 12 Connect the inline wiring connector that supplies power to the whipper motor 13 Re connect the whipper outlet hose 14 Re install the machine left side panel 15 Perform a Powder Rinse Cycle to flush any powder that may have fallen into the whipper chamber ...

Page 55: ...m 1 Swing open the powder dispenser bracket 2 Remove the steam trap and the whipper bowl from the whipper assembly see page 51 3 Pull out the vacuum duct 4 Separate the two vacuum duct parts and thoroughly clean and dry them 5 Re install the vacuum duct 6 Re install the whipper components ...

Page 56: ... 18 3 Disconnect the wiring to the fan and remove the vacuum tube connected to the top of the fan 4 The fan is secured to the wall of the machine using two single use plastic ratchet fasteners 5 To remove the fan gently pry each side of the fan until it slides free from the two ratchet fasteners Once the fan is removed the old ratchet fasteners must be discarded and replaced by new ones ...

Page 57: ...le maintaining pressure on the ratchet fastener on the inner wall of the machine slide the fan onto the fastener from the outer wall and press it onto the fastener until it is secure Repeat this procedure for the second ratchet fastener 8 Connect the wiring to the fan and connect the vacuum tube to the top of the fan 9 Re install the brewer and the machine s left side panel ...

Page 58: ...nel see page 14 2 Remove the exhaust fan cover by prying it off it is clipped directly onto the fan 3 Disconnect the power wires to the exhaust fan 4 Remove the four screws and hex nuts securing the exhaust fan to the service panel 5 Remove the old fan To re install the rear exhaust fan follow these same instructions in the reverse order ...

Page 59: ... located at the top rear of the Eccellenza Express To replace either of the fuse holders 1 Disconnect the wiring from the fuse holder 2 Loosen the plastic hex nut that secures the fuse holder to the main power plate 3 Pull the fuse holder out through the top of the machine 4 Transfer the fuse and the cap from the old fuse holder onto the new one if required 5 Install the new fuse holder and secure...

Page 60: ...g from the main power switch 3 Connect the wiring to the new power switch i Black wire hot connect to tabs 1a on the switch ii Black wire hot dual terminal connects to tab 1 on the switch iii White wire neutral dual terminal connects to tab 2 on the switch iv White wire neutral connects to tab 2a on the switch 4 Insert the new switch into the cutout on the main power plate and snap it in place to ...

Page 61: ...ord to the bottom of the machine and remove the service cord 4 Install the new service cord 5 Reconnect the wiring to the power switch i Black wire hot connects to 1a ii White wire neutral connects to 2a 6 Reconnect the ground wire to the terminal on the machine wall Updating Firmware and Support Files Detailed instructions for updating the Eccellenza Café firmware and support files Factory Settin...

Page 62: ... 4 tube changer It is highly recommended that you acquire the Operation Service manuals for each of these items from Coinco www coinco com These sophisticated changers are highly customizable and may require direct configuration through their own respective software which is totally independent of the Eccellenza Express software configuration Install the changer housing skirt and levelers 1 Remove...

Page 63: ...l right side panel is no longer required as the coin changer housing replaces it 2 Locate the changer harness in the machine clipped at the bottom of the machine 3 Connect the white connector at the end of the wiring harness to the connector on the harness coming from the coin changer housing 4 Re install the right side panel which now includes the coin changer housing ...

Page 64: ...rews on the inner wall of the housing 3 Slide the coin changer over the three screws there are three keyhole slots at the rear of the changer and push down on it making sure all three screws are inserted into the slot 4 Flip open the acceptor portion of the coin changer and tighten the three screws to secure the changer to the housing and then close the acceptor portion ...

Page 65: ...loaded at www coinco com Test the machine and the coin changer system 1 To switch the machine from free mode to coin mode press the Free Coin button on the interior button panel of the machine on the inside of the front door 2 Insert several coins to test the coin changer system insert more than the selling price of the beverage The coins should be accepted and a credit will be displayed on the LC...

Page 66: ...itched OFF remove the dispenser cover top cover and the right side panel Connect the printer to the interface cable located beneath the water tank Install the new right side panel with printer housing onto the machine Re install the dispenser cover and top cover To open the printer housing door unlock the housing door and swing it downwards ...

Page 67: ... Previous Select Set Hour and set the hour Press Previous Select Set Minutes and set the minutes Printer Buttons Paper Feed Button II ON OFF Line Button Power Paper Specifications Paper Width mm 60 0 0 5 Type of Paper Thermal roll outside heat sensitive Paper Roll Outside Diameter mm Max 140 with roll holder in standard position Max 100 with other roll holder positions Roll Core Inner Diameter mm ...

Page 68: ...le at office supply retailers not available from VKI For correct paper loading automatic or manual cut the paper at the beginning of the roll according to the following recommendations Remove the paper roll retainer from the end of the paper roll spindle Install the roll onto the spindle and re install the paper roll retainer ...

Page 69: ... To properly align the paper with the printer guides press the Paper Feed button to feed a few centimeters of paper through the printer this is done to align the paper Once done cut off any excess paper and close and lock the printer housing door Manual Paper Loading With the printer power off lift the head up lever to lift the print head and allow paper to feed through Paper roll not shown to cla...

Page 70: ...r Printer Status LED The printer status LED indicates the current state of the printer according to the following table Machine Messages The following printer related messages may appear on the LCD screen of the machine Printer Error the printer wiring is not connected Printer Offline the printer is connected but it is off line OFF Change Printer Paper the paper roll is spent and must be replaced ...

Page 71: ...en the printer housing door and remove the printer paper roll from the printer unit 2 Remove the printer housing back panel to expose the wiring harness To create slack in the wiring the harness must be unsecured from the housing wall by lifting it up and out of the notch in the metal ...

Page 72: ...k plate by removing the plastic wing nut that secures it and sliding the plate towards the top of the printer door 4 Lift the printer off the door and rotate it slightly Disconnect the two wiring connections at the rear of the printer The printer can now be completely removed ...

Page 73: ...inter onto the door 6 Place the printer lock plate onto the printer door and slide it down over the edges of the printer making sure it locks into the metal at the bottom of the door to secure the printer in position 7 With the printer door still open secure the wiring harness to the notch in the metal and reinstall the printer housing back panel ...

Page 74: ...nly downloaded into the Eccellenza Express Call Key Operator The cashbox in the changer unit is full more than 220 Empty the cashbox and reset the Key Operator message Can Communic Error A communication error is present between the control board and expansion board Verify wiring connections to the expansion board control board and LCD display The expansion board may need to be replaced Change Prin...

Page 75: ...rflow Error A water overflow has been detected Empty and dry the overflow cup tray Verify the water level probe adjustment They may be set too high allowing too much water into the tank Water level probes may need cleaning Inlet valve may be leaking constantly allowing water to enter the tank Replace the inlet valve The water in the tank may be overheating Lower the water temperature setting Overh...

Page 76: ... Refill message for the Powder 2 dispenser Verify Product Level 1 Coffee 1 dispenser is low and requires refilling Refill the dispenser for coffee 1 Reset the Refill message for the Coffee 1 dispenser Verify Product Level 2 Coffee 2 dispenser is low and requires refilling Refill the dispenser for coffee 2 Reset the Refill message for the Coffee 2 dispenser Verify Waste Bin Level Waste bin may be f...

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