VKI Technologies Eccellenza touch Service Manual Download Page 56

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Service Manual

VKI Publication #100309-001

Removing the Control Board and Power Supply

Disconnect the service cord from the wall outlet prior to attempting to

replace any of the components in this section. Failure to do so can result in

an electrical shock!

The control board and the power supply are both mounted onto the same

support bracket.
To replace the power supply, the control board must first be removed from

the support bracket.

Control Board

With the back panel removed, disconnect all of the wiring harnesses from the control

board (

Disconnect the black wiring pair from the fuse holder (

Disconnect the white wiring pair from the main power switch.

Summary of Contents for Eccellenza touch

Page 1: ...September 2 2015 VKI Publication 100309 001 Service Manual ...

Page 2: ...ement components in the equipment or improper installation of the equipment Copyright VKI Technologies Inc 2015 The information and contents of this publication are property of VKI Technologies Inc No part of this publication can be reproduced reused modified or published in any format without the written permission of VKI Technologies Inc VKI Technologies Inc reserves the right to change the spec...

Page 3: ...earing Error and Reminder Messages 17 Fault Codes 19 Logs 20 System Info 20 SECTION 4 Brewer System 21 Replacing the Brewer Assembly 21 Replacing the Filter Screen 22 Removing the Brewer Piston Seal 23 Removing the Brewer Cylinder 25 Removing the Brewer Motor 29 Removing the Wiper Motor Assembly 30 Removing the Motor from the Wiper Motor Assembly 31 Removing the Wiper Motor Pinion Coupling 31 Remo...

Page 4: ...acing the Heating Element 48 Installing the Water Tank Assembly 49 Removing Inlet Valve 52 SECTION 7 Electrical and Electronic Systems 53 Replacing the 15A Fuse 53 Replacing the Fuse Holder 53 Service Cord 54 Main Power Switch 54 Exhaust Fan 55 Removing the Control Board and Power Supply 56 Control Board 56 Power Supply 59 Installing the Control Board and Power Supply 60 Replacing the HMI Touch Pa...

Page 5: ...t is imperative that you read and understand the safety information outlined in this section before proceeding with the installation and operation of this equipment Safety Symbols The following symbols are used throughout this publication Indicates an electrical shock hazard Indicates a potential safety risk or a risk of damage to equipment and or its surroundings Indicates important information t...

Page 6: ... than the voltage indicated on the serial number decal Do not immerse this equipment or any part of this equipment in liquid Do not install the equipment in an area where water spray is present This equipment must be installed securely on a level surface If it does not appear to be a stable location select another installation location Leave a minimum of 2 5cm of space around this equipment for pr...

Page 7: ...nt parts can result in personal injury fire and or further damage to the equipment Do not allow children to access this equipment They are not aware of the potential dangers that exist Never use ammonia based cleaners on the surfaces of this equipment as they will become discolored and or damaged permanently Use mild cleaning products such as dish soap Do not lean on push or shake the equipment as...

Page 8: ...tion at center or 1350 grams 3 lbs with partition at right side Coffee Hopper 2 1000 grams 2 25 lbs with partition at center or 650 grams 1 5 lbs with partition at right side Powder Hopper 1 1000 grams 2 25 lbs Powder Hopper 2 1000 grams 2 25 lbs Powder Hopper 3 1000 grams 2 25 lbs Water Tank 3 8 litres 1 gallon Waste Bin 27 cups 10 oz Equipment Dimensions Height 28 0 71 cm Width 20 0 56 cm Depth ...

Page 9: ...the waste bin Refill the Coffee Dispensers and Powder Dispensers top off the coffee and powder dispensers Wipe Exterior and Countertop using a clean towel wipe any coffee grounds and spills from the exterior of the machine and the countertop Every 10 000 Cycles or 12 Months Service Technician Clean the brewer components with warm water and dish soap For detailed information about removing and disa...

Page 10: ...rompted by the machine a message appears on the touch screen Verify Water Tank Components dependant on the local water conditions inspect clean or replace components as required Cleaning the Coffee Dispenser empty remove and clean the coffee dispenser with warm water and dish soap Thoroughly dry the dispenser before re installing it For detailed information about removing the coffee dispenser go t...

Page 11: ...ntents of both the waste bin and the cup stand Automatic brewer or powder system rinse Insert an empty container under spout and press Start The automatic rinse cycle for the brewer or for the powder system has been triggered Place an empty leak proof container under the pour spouts area and then press Start to begin the rinse cycle Overflow detected Remove and empty cup stand and drip tray An ove...

Page 12: ... quadrature encoder is not returning any count 1 Clear the message 2 Reboot the machine 3 If message persists replace the brewer motor Brewer Not Initialized M9 A brewer sequence was started while the brewer was not initialized 1 Reboot the machine to initialize the brewer Brewer Over Current Standby M9 The brewer current was over the configured stand by operation level 1 Clear the message 2 Reboo...

Page 13: ...esent or operating abnormally 1 Check fan wiring and connection to the control board 2 Clean any accumulation from fan 3 If message persists replace the exhaust fan 4 If message persists replace the control board Grinder Fuse Fault G1 Grinder fuse is in fault 1 Check the fuse on the control board Grinder Sensor Error G1 Grinder Current Sensor is out of range 1 Clear the message 2 Reboot the machin...

Page 14: ...level 1 Clear the message 2 Reboot the machine 3 If message persists replace the waste bin presence sensor Machine Fan Blower Over Current Standby Z99 The fan or blower current sum was over the configured stand by operation level 1 Clear the message 2 Reboot the machine Machine No Cup Light 1 Short Machine No Cup Light 2 Short S1 S2 Cup Light LED 1 or 2 is shorted 1 Replace LED harness Powder Disp...

Page 15: ...d to be replaced Water Tank Coil Valves Over Current StandBy Z99 Valve s current has exceeded the configured stand by operation level 1 Clears automatically If not reboot the machine Water Tank Default Critical Min Temp H1 Water temperature went below the configured minimum critical temperature Default 0 C 1 Clear the message 2 Reboot the machine Water Tank Default Fill Heating Time H1 Inlet valve...

Page 16: ...e faulty whipper motor Wiper current is over safety level M10 The wiper motor current was over the configured maximum operation level 1 The wiper may be jammed or binding 2 The wiper motor may need to be replaced Wiper current is under minimum operation level M10 The wiper motor current was under the configured minimum operation level 1 The wiper may be missing or improperly installed 2 Check wipe...

Page 17: ...is displayed at the lower left of the screen In the example below the message reads Powder 2 low level However in our example there are three messages present as indicated by the number 3 in the upper right corner of the message box Messages are stacked in the order in which they occur Tap the message box to view more details about the message and the steps required to rectify the issue ...

Page 18: ... powder dispenser lid and refill the dispenser Once done tap the checkmark to clear this message If you cannot immediately refill the dispenser tap the X to close this window without clearing the message In a case where multiple messages are present after clearing the first message any subsequent messages are displayed one at a time until they are all cleared ...

Page 19: ...ing K1 Exhaust Fan S2 Esthetic Lighting L4 Normal Water Level Detection T1 Temperature Probe L5 Safety Water Level Detection V1 Outlet Valve Coffee L9 Waste Bin Level Detection V2 Outlet Valve Powder 1 M1 Powder 1 Motor V3 Outlet Valve Powder 2 M2 Powder 2 Motor V4 Outlet Valve Hot Water M3 Powder 3 Motor V5 Inlet Valve M4 Powder 1 Whipper Motor V6 Outlet Valve Powder 3 In the example above a faul...

Page 20: ...list form from newest to oldest Codes marked in Red identify that servicing was required Yellow marked codes warn of potential faults Codes in green identify that the fault was corrected and when it was corrected System Info Information about the equipment such as serial number firmware versions network address etc can be found in this menu ...

Page 21: ...d release latch and rotate the brewer towards the left clockwise to release it 4 Lift the brewer off the brewer motor to remove it If you are performing the annual maintenance on the brewer continue with this section of the manual for instructions to completely disassemble the brewer To install the brewer follow these same instructions in the reverse order When re installing the brewer make certai...

Page 22: ...3 Tap the Remove Filter option 4 The brewer lowers the piston all the way to the bottom of the cylinder which will subsequently unclip the filter screen from the piston 5 The piston then moves to the top of the cylinder allowing for easy retrieval of the filter screen 6 Install the new filter screen into the top of the piston by clipping it in place make certain it is properly clipped all the way ...

Page 23: ...rod and then remove the piston 4 Using a small flat head screwdriver carefully pry the seal from the piston to remove it Avoid damage to the piston as it will then need to be replaced as well 5 Install the new seal onto the piston To avoid installing the seal upside down onto the piston note the orientation of both see image below Prior to reassembling the brewer make absolutely certain that the s...

Page 24: ...piston rod has a flat spot as does the piston Align the piston onto the piston rod and press it down into position 7 Secure the piston to the piston rod using the large sidewalk screw NOTE When re installing this screw the torque must be 30 in lbs 8 Install the filter screen by pressing it onto the piston until it clips into position all the way around ...

Page 25: ...linder assembly to the cylinder base and set them aside for now 3 Turn the drive gear at the bottom of the brewer counter clockwise while at the same time lifting the base away from the cylinder until it is free and then remove and discard the old cylinder assembly 4 Remove the piston rod assembly from the piston and set it aside as you will be re installing it later in this procedure ...

Page 26: ...the valve head D Pass the valve head through the valve housing from the inside of the cylinder You need to hold the valve head in this position to perform the next step E Place the spring into the U Cup seal with the valve head in the middle of the spring and then install the valve activator over the spring flatter side towards the front While holding the valve body in place inside the cylinder pr...

Page 27: ...ystem Eccellenza Touch VKI Publication 100309 001 27 6 Slide the piston rod assembly all the way down into the cylinder 7 Apply food grade lubricant Lubrifilm onto both sides of the piston track inside the cylinder base ...

Page 28: ...rive gear at the bottom of the brewer clockwise while at the same time pushing the base onto the cylinder until it is fully seated 9 Insert the five screws into the cylinder base and tighten them in the sequence shown NOTE When re installing these screws the torque must be 30 in lbs ...

Page 29: ...he wiring harness from the brewer motor 3 Loosen the two upper screws and remove the two lower screws 4 From the front lift and pull the brewer motor out of the machine The brewer motor comes as a complete assembly There are no spare parts available therefore this motor cannot be serviced To install the brewer motor follow these same instructions in the reverse order ...

Page 30: ...ved disconnect the power connector to the brewer wiper motor 3 Disconnect the left and right switch connectors from the brewer wiper motor 4 Loosen the two upper screws and remove the lower screw 5 From the front lift and pull the brewer wiper motor out of the machine To re install the wiper motor assembly follow these same instructions in the reverse order ...

Page 31: ...ards to release the motor from its support 3 Pull the wiper motor from its support Removing the Wiper Motor Pinion Coupling 1 Remove the wiper motor from the wiper assembly 2 Compress the two pinion clips at the rear of the motor 3 Pull the pinion out from the front of the motor After replacing the pinion you ll need to apply a liberal amount of food grade grease to the center of it ...

Page 32: ...motor assembly NOTE When re installing this screw the torque must be 22 in lbs 3 Remove the wiper arm 4 Unclip the switch to be replaced from its support and pull the wiring through the hole in the support to remove it To install the wiper motor switch follow these same instructions in the reverse order Prior to replacing the wiper arm apply a liberal amount of food grade grease to the center of i...

Page 33: ... Dispensing Systems Coffee Dispenser Removal 1 Open the front door 2 Remove the two hex screws securing the coffee dispenser in place NOTE When re installing this screw the torque must be 15 in lbs 3 Lift the front of the coffee dispenser and pull it away from the motors at the rear to remove it from the machine ...

Page 34: ...r and lower edges of the chute 5 Install the bean chute assembly onto the bottom of the coffee bean dispenser The bean chute must be pushed as far as possible onto the coffee bean dispenser 6 When installing the dispenser into the machine make certain that the dispenser is pushed down as far as possible and that the bean chute is inserted and recessed into the top of the grinder prior to tightenin...

Page 35: ...Publication 100309 001 35 Removing the Grinder 1 Remove the coffee dispenser see page 33 2 Lift the outlet spout to remove it from its support on the grinder 3 With the rear panel removed disconnect the two power wires and the ground wire from the grinder ...

Page 36: ...s securing the grinder to the machine cabinet and then remove the grinder To install a grinder follow these same instructions in the reverse order but please note the following When installing the two mounting screws closest to the wall do not tighten them until the grinder guard has been re installed ...

Page 37: ...Remove the rubberized trim that seals around the edges of the dispensers 4 Lift the top front of the dispenser while at the same time pulling the bottom of the dispenser forwards to disengage the coupling from the dispenser motor 5 Lift the dispenser up and out the top of the machine To install a powder dispenser follow these same instructions in the reverse order ...

Page 38: ...or the motor to be removed circled in yellow 2 Remove the two screws securing the motor to be removed to the machine red arrows NOTE When re installing these screws the torque must be 4 in lbs for the coffee motors and 7 in lbs for the powder motors 3 Remove the motor s When removing or installing a coffee motor the wiring and the connector needs to be passed through the round opening in the coffe...

Page 39: ...e of the whipper systems Also note that the plastic whipper components may be gray or black in color Removing the whipper system components 1 Remove the dispenser chute and disconnect the outlet hose 2 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 Whipper System Component...

Page 40: ...hipper chamber and the steam trap from the whipper base disengaging it from the powder drawer and inlet fitting 4 Remove the impeller from the motor shaft 5 Turn the handle to the right and remove the whipper base from the whipper motor 6 Remove the screw securing the top of the whipper mount ...

Page 41: ...omponents have been removed They can now be cleaned with warm water and dish soap Thoroughly rinse the components under warm running water for several minutes to remove any remaining residues Once done the components must then be dried using a clean cloth Do not submerge the whipper motor in water Do not rinse the whipper motor with water Do not use any type of cleaner or detergent on the whipper ...

Page 42: ...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 3 Secure the mount to the wall with a screw and then install the base onto the mount NOTE When re installing the screw the torque must be 15 in lbs 4 Install the impeller onto the shaft line up the arrow on the impeller with the...

Page 43: ...hamber 6 Reinstall the powder chute into the whipper and re connect the whipper outlet hose 7 Perform a Powder Rinse cycle to flush any powder that may have fallen into the whipper chamber see page 44 Installing the Gasket Seal and the Impeller When replacing the gasket make certain that the small alignment line on the gasket lines up with the alignment line on the base If the gasket is not aligne...

Page 44: ... Rinse to flush powder that may have fallen into any of the three whippers 1 Go to the System Status screen and select the Maintenance tab 2 Tap the Powder Rinse option to activate it This option runs a rinse cycle to clean all three of the powder whipper systems by sending hot water through each of the whipper units while at the same time activating each of the whipper motors Place a cup on the c...

Page 45: ...ff the water supply going to the machine 2 Remove the machine s back panel 3 Remove the drain hose from its clips 4 Remove the security plug from the end of the drain hose valve 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 draining from the tank may be extremely hot and has the potential to cau...

Page 46: ...re may be a small amount of very hot water that spills when a valve is removed 4 Install the new valve by sliding it into its respective port on the water tank Verify that the o ring is present on the valve before installing it into the tank Also make sure that the valve is completely seated into the water tank 5 Pass the valve breather tube through the round retainer on the edge of the tank lid a...

Page 47: ...sconnect the wiring from the heating element 6 Disconnect the wiring from the three level probes 7 Disconnect the inline connector to the temperature probe 8 Pull the water tank completely out of the machine You will need to remove the overflow hose from the upper and lower openings in the metal through which the hose is routed Replacing the Temperature Probe and Water Level Probes 1 With the wate...

Page 48: ...rature before attempting to remove it 1 With the water tank and the tank lid removed remove the hex nuts and washers used to secure the heating element to the tank lid 2 Insert the new heating element through the bottom of the tank lid and secure it to the top using the large hex nuts and washers 3 Re install the tank lid buy pushing it onto the water tank body until it clips securely in place ...

Page 49: ... 6 Water System Eccellenza Touch VKI Publication 100309 001 49 Installing the Water Tank Assembly 1 Connect the wiring to the heating element 2 Connect the wiring to the water level probes as illustrated below ...

Page 50: ...n 100309 001 50 3 Lower and slide the water tank onto its shelf Make certain the tab at the bottom of the water tank slides under the metal guide 4 Route the overflow hose through its supports in the cabinet 5 Connect the wiring to the temperature probe ...

Page 51: ...09 001 51 6 Connect the wiring to the five outlet valves as illustrated below 7 Connect the inlet hose to the bottom of the water tank 8 Connect the outlet hoses to their respective outlet valves 9 Install the thermal tape over the outlet valve wiring terminals ...

Page 52: ...ose from the inlet valve 2 Disconnect the wiring from the inlet valve Be careful not to discard or misplace the small blue jumper wire 3 Push the valve towards the right and turn it slightly to remove it To re install the inlet follow these same instructions in the reverse order When installing a new inlet valve always secure the hose to the valve with a properly installed circle clamp ...

Page 53: ...y turn it counter clockwise to release it 3 Remove the existing fuse from the fuse holder cap and replace it with a new one 4 Insert the fuse holder cap and fuse into the fuse holder and turn it clockwise to lock it in place Replacing the Fuse Holder 1 Disconnect the wiring from the fuse holder 2 Loosen the plastic hex nut that secures the fuse holder to the machine 3 Remove the fuse holder and re...

Page 54: ...ire hot connects to the switch tab 2 ii White wire neutral connects to the switch tab 1 iii Green wire ground connects to the ground post Main Power Switch 1 Disconnect the wiring from the main power switch 2 Compress the clips on each side of the switch and push it through the opening in the metal towards the outside 3 Insert the new switch into the cut out at the rear of the machine and snap it ...

Page 55: ...9 001 55 Exhaust Fan 1 With the back panel removed disconnect the exhaust fan wiring from the control board 2 Using a 7 16 nut driver remove the hex nut securing the ground wire and exhaust fan 3 Remove the remaining three hex nuts 4 Remove the exhaust fan from its mounting posts ...

Page 56: ... to do so can result in an electrical shock The control board and the power supply are both mounted onto the same support bracket To replace the power supply the control board must first be removed from the support bracket Control Board 1 With the back panel removed disconnect all of the wiring harnesses from the control board 1 to 8 2 Disconnect the black wiring pair from the fuse holder 9 3 Disc...

Page 57: ...e coming from the board power supply from the heater relay 5 Disconnect the white wire coming from the board power supply from the heating element 6 Remove the black and white wires going to the heating circuit from the wire clips 7 Lift the board and power supply up and to the right to release it from the machine ...

Page 58: ...ronic Systems Service Manual VKI Publication 100309 001 58 8 Remove the long black wire by pulling it through the center of the board mounted choke 9 Compress each of the board clips and lift the board off the clips to remove it ...

Page 59: ...the power supply Do not lose the small screws and square washers when removing the wiring terminals from the power supply as these are not available as service parts 11 With the control board removed you now have access to the four screws used to secure the power supply to the support bracket Loosen these four screws to remove the power supply from the support bracket ...

Page 60: ...ems Service Manual VKI Publication 100309 001 60 Installing the Control Board and Power Supply 1 Install the power supply onto the support bracket using four screws 2 Install the control board onto the bracket by pushing it onto the clips ...

Page 61: ...blication 100309 001 61 3 Reconnect the output wires to the power supply as illustrated below 4 Pass the long black wire through the center of the board mounted choke and towards the power supply side 5 Connect the AC wires to the power supply as illustrated below ...

Page 62: ... 62 6 Route the black and white heater circuit wires around the outside of the power supply and then upwards 7 Install the power supply and control board assembly back into the machine Make sure the two joggles slide into the openings on the metal wall to lock the assembly in place ...

Page 63: ...e fuse holder 10 Reconnect the white wiring pair to the main power switch 11 Connect the power cord to the wall outlet but DO NOT SWITCH ON THE POWER After replacing the control board the firmware must be loaded when the machine is first powered up Do not power up the machine until the USB Flash drive with the proper firmware is connected to the machine 12 Follow the procedure for updating the fir...

Page 64: ... 001 64 Replacing the HMI Touch Panel 1 Unlock and open the front door 2 Remove the black door fascia undo the clips with a flat head screwdriver in the sequence shown and then pull the bottom of the fascia to remove it 3 Remove the four screws securing the HMI to the front door ...

Page 65: ...onnect the wiring harness from the bottom of the HMI 5 Remove the small MicroSD card from the original HMI push in and release to pop it out and insert it into the new one push in and release to lock it in place 6 Install the antenna onto the bottom of the HMI if missing 7 Connect the wiring harness to the bottom of the HMI ...

Page 66: ... onto the door making certain to secure the USB connector to its retainer on the door 9 Secure the HMI to the front door using four screws 10 Switch the machine power on 11 Load the latest firmware into the HMI see page 67 12 Test the equipment and if functioning properly replace the black door fascia ...

Page 67: ...ent to the latest firmware After replacing the control board the firmware must be loaded when the machine is first powered up Do not power up the machine until the USB Flash drive with the proper firmware is connected to the machine 1 Load the latest firmware files onto a USB flash drive minimum 1GB 2 Remove the waste bin 3 Remove the plug from the USB connector and insert your USB flash drive int...

Page 68: ...emove the USB flash drive to reboot the machine 7 Remove the flash drive and the Eccellenza Touch will reboot itself twice While it is rebooting re install the plug onto the USB connector and re install the waste bin 8 It is possible that an error may be displayed on the screen If this is the case simply clear the error Updating the Eccellenza Touch firmware will not overwrite or change any existi...

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