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File - Servicing all your beverage needs since 1988

1. Temperature sensor Part number 19158 SIS code F13 Cooling fan Part number 19351 Los SIS code F14 Insulation covers Part number 18515 H SiS code F15 Vu 2 Vu S F10 Other fault in cooling system general F13 Temperature sensor F16 Door seal F11 Peltier element F14 Cooling fan F17 Door locking mechanism F12 Heat conductive paste F15 Insulation covers Top cover Water tank lid Part number 18213 SE 2 SIS code G11 Water tank Rear cover complete Part number 18209 Part number 19495 SIS code G12 SIS code G16 Inner cover Left cover Part number 19493 Part number 18520 SIS code G17 SIS code G13 Right cover Part number 19469 SIS code G18 Operat panel cover Part number various SIS code G14 O G10 Other fault in housing general G15 Water tank lid o G11 Top cover G16 Water tank complete G12 Rear cover G17 Inner cover le 613 Left cover G18 Right cover I G14 Operation panel cover Version 1 36 02 2004 Control K o Q Reed sensor Part number SIS code K11 Control PCB Part number 19200 SIS code K12 Micro processor Part number Power supply PCB Part number 19
2. FASTON 6 3X0 8 Ur 7 6V V3060 GND GND GND MTPS2N06V MOTOROLA D1040D 9 81 R5460 2 Ik 74HC04 5V N2010D 14 LM324 Title AGND AGND CONTENTA cooling compartment Size Number Revision Orcad A 810900 V24C Date 30 Jan 2004 Sheet of 11 File Cont V24C ddb Drawn By 1 2 3 4 1975 Q CNI3 1 11V AMP FASTON 6 3X0 8 CN14 B2 coil 1 AMP FASTON 6 3X0 8 R5320 V4090 1N4002 V3090 BUK455 100A Philips 5V 45V R5330 180 N R5340 100k B2 empty det D1030F GND Title CONTENTA Dosing Coil B2 Size Number Revision Orad A 810900 V2 4C Date 30 Jan 2004 Sheet of 6 11 File Cont_V24C ddb Drawn By 2 3 4 2 3 4 D1040C D1040B e 5 4 3 C5000 CN12 207 74HC04 E GND D1040A JST B3B ZR GND 74HC04 35V C1040 10nF a Title CONTENTA Service Device Size Number Revision 810900 V2 4C Date 30 Jan 2004 Sheet of 7 11 File Cont_V24C ddb Drawn By 4 1 2 3 4 35V e O 5V IR5390 5380 R5370 5360 10k 10k 10k 10k D1030A CN9 1 2 10 9 8 74HC04 7 D1030C 6 6 3 1 74HC04 JST F
3. i 97 fe um 2 Calibrate the machine First ensure the through is in place Place a 0 5 litre 16 9 fl oz measuring cup under the coffee outlet Push the pot button and keep it pressed until 0 5 litre 1 9 fl oz is dispensed Release the button The flow will be automatically calculated cc sec based on the fixed quantity 0 5 litre 16 9 fl oz and the time needed to dispense this amount 3 Coffee cup volume setting Place a cup under the coffee outlet Push the coffee cup button until the desired amount is dispensed in the cup 4 Hot water cup volume setting Place a cup under the hot water outlet Push the hot water cup button until the desired amount is dispensed in the cup 5 Coffee pot volume setting The volume of the coffee pot is set to 0 9 litre 33 oz and cannot be changed by means of the buttons Connect the service device to set another volume range 20 999 ml 0 7 33 oz 6 Coffee strength ratio setting The standard coffee ratio is 1 22 This ratio can be adjusted to meet customer preferences Press the stop button and the pot of coffee button to check the actual ratio setting Count the number of times that the LED is actually blinking and add in case the Replace coffee pack LED lights or substract in case the Refill water tank LED lights this from the offset value 1 20 to calculate the actual ratio 1 20 2 1 22 O 2 coffee less strong 26 2 1 18
4. XX ch p D O gt Item Overview Electrical Diagram Contenta 230 V AC Overview Electrical Diagram Contenta 110 V AC Interface Diagram Boiler Diagram Power Supply and Security Relay Cooling Control Dosing Control Security Device Control Front Panel Side Panel amp Cold Water Supply Unit Analog Digital Converter CPU Coin System Replace coffee pack RR Refill water tank RR Warming up please wait RR Cup coffee coffee Contenta 230 VAC Cold water empty detection Floater inlet Boiler in_ Heater relay Fi T First Dry boiling Dry boiling Que safety switch safety switch auto reset fatal Go q i ed niae K Au cura Heating Cold water empty element serial Yg 1 CN6 i A Heater Bn o out in Dosing coil Rd B2 coil H relay gt CN13 E Heater 82 current Bn 1 CN8 Bik Rd e Or gt 82 empty detection d current ER Coffee empty Ye HA io sv CN3 Fan sensor Blk EM Ur 7 6V O 5 electronic T cooling Kc Rd 109 24Vsup B Uref E 5 2 ling temp Bl Blk gt a NTC E Cooling em T d A sensor y GENE Peltier 1 4 Uref CN16
5. IN Warning boiler can contain very hot water Hold the hose in position until the boiler is completely empty Putthe plug back onto the hose 3 Disconnect the water inlet hose A the connector of the heating element B and the connector of the boiler wiring C the outlet tubes D and the overflow hose E Allow the water in the water inlet hose to flow out into a container Use a cloth to wipe off any spilled water Overflow Connector hose boiler wiring Water inlet hose LS Outlet tubes Drain hose Heater connector Water inlet valve Hose Plug Boiler disassembly standard machine with removable water tank Version 1 36 Functions water 1 02 2004 Overflow Connector hose boiler wiring hose Drain hose connector Hose Plug Boiler disassembly machine with fixed water connection 4 Lift the boiler out of the machine tilt the boiler a little towards you and lift it out 5 Take the replacement boiler and place the positioning pins under the boiler in the corresponding holes in the machine frame Positioning holes Positioning pins 6 Connect the water outlet tubes to outlet spout on the machine frame Make sure that the tubes are correctly installed Version 1 36 Functions water 2 02 2004
6. 4 5 sse 5 O sesind oz sesind Buug T O e 02 1 oz sr ones lt t eu uBnoj eu eoeld pasuadsip ueeq sey Jajem 160 U9UM DIOU pue 4 Sjenno ayy jepun dno Buunseeuu 1670 eoejd pue MOJ uoneJque2 89IM9S eu Aq eq Ajuo ueg 1 L si Dunes 98409 puejsuoo dn 14671 sdois 0 9 O y JO Buunp Dumauug peuoea ueeq seu U9UM U3LVM LOH DIOU pue ssald H31VM LOH JORNO Jajem joy 9U Jepun dno eu Bulnes euinjo JOH Buunp Dumauug seu Buug O epou WEADOJG uoynq dois ueeq seu U9UM 334409 ploy pue ssald 334409 JOHNO 99409 eu Jepun dno eu eoejd Dunes euinjo dno 98409 SE T e 0 19 O cb epou uoynq 49103 B 3 B Version 1 36 Programming 9 02 2004 4 5 Default settings V2 09 2 10 Ite
7. Pour a cup of hot water Unplug the power cord Remove the tank lid Disconnect the silicon water hose as well as the wiring from the inlet valve Remove the retaining screw of the tank and lift the tank from the machine Guide wiring and hose upright trough the opening in the tank Remove the right cover Unplug the connectors from the power supply board There is no specific order of disconnecting Loosen the screws 2 of the retaining rails remove the rails and take the board out Install the new board back into the machine and connect the various connectors 0 Reassemble and test the machine Operation unit replacement Foil Print In case a fixed water connection is installed start from step 1 If no fixed water connection is installed unplug the power cord and proceed with step 6 1 Close the faucet and remove the external water supply hose water inside Pour a cup of hot water Unplug the power cord Remove the tank lid Disconnect the silicon water hose as well as the wiring from the inlet valve Remove the retaining screw of the tank and lift the tank from the machine Guide wiring and hose upright trough the opening in the tank Remove the water tank right cover left cover top cover and rear cover Remove the operation panel cover Be careful not to damage the part when it is being removed Disconnect the flat cable in the upper left corner of the control board Never pull the c
8. 7 Connectthe overboil hose to the tube 8 10 Ss y S ns w __ d zi gt Reinstall the water inlet hose the heating element connector and the boiler wiring connector Put the drain hose back in place and reinstall the left cover Calibrate the coffee valve This can be done by means of button programming or the service device in case of the latter please do so before step 9 Enter the button programming mode Place a measuring cup under the coffee outlet Press the coffee pot button and keep it pressed until 0 5 litre 60 9 fl oz has been dispensed The dispenser will calculate the flow of the valve Cancel the programming mode In case of the service device you will find the calibration in the installation sub menu Press 1 to dispense 0 5 litre 60 9 fl oz and press 0 to stop Version 1 36 Functions water 3 02 2004 B Boiler temperature adjustment See chapter 4 page 2 Programming Installation sub menu C Heating element replacement The heating element is part of the boiler assembly It cannot be replaced as a separate item in the field Rather than disassembling the heating element separately the boiler is replaced as a single assembly See boiler replacement on page 1 The dry running safety device is integrated in the heating element connector It consists of two components 1 A bi metal plate that switches the heating element off when the temperat
9. 85020 68k 1 196 D1020A N2010A 1 Se 3 3 2712 P C617 2 150 tO 7 00 a C6180 LM324 AGND 150pF_ EN 5V R5030 AGND 25k5 1 AGND C1020 10nF Title El a CONTENTA CPU AGND GND Size Number Revision Orcad A 810900 V24C Date 30 Jan 2004 Sheet of 10 11 File Cont V24C ddb Drawn By 1 2 3 4 2 3 4 CN A 4 4 GND 3 S 2 2 1 il 5V Picoflex PF50 9 Error decsgnt2 bmp file not found Title Coin interface Size Number Revision Orad A 8192 V2 4C Date 30 Jan 2004 Sheet of 11 11 File Cont_V24C ddb Drawn By 3 4 Version 1 36 02 2004 6 Preventive Maintenance Contents 02 2004 Not available Version 1 36 Version 1 36 02 2004 7 SIS Codes Contents Item Water System Dosing System Product Delivery Cooling System Housing Control gt Options Page ou GL ES oes del T Version 1 36 02 2004 SIS Codes Service code sequence Contenta Activity code 5 1 5 code Corrective action code Cafitesse 50 2 2 01 Exchange defect Z 02 Exc
10. Boiler temp NTC T element a y Boiler temp Rd sensor 2 gt a HV gt al Rd 1 Boiler water 19 75V HW level 27 CN15 Boiler Hot 4 O water I 9 Ye Hot water valve level B 1 24V ret 6 sensor Bn FO 24Vsup theck HIV oe Gn 11V 4 6A Peltier element Coffee O 24Vret Coffee valve E Bk GND water 24Vsup EN sup O Ye 24V 1A Outputs Boiler Voltage 41975VsupO Je 8 Eege safety 63 CN10 meassuring 4x10K H 28 e o ass sl overboil BEN points T safety CES Red wy 7 Magnet P Trough e 2231 3 Cooling p ee Ye Gn detection Flatcable compartment 45V A 7 Cooling A Power Diagram contenta sch DECS Int D Boereboom j kK Main switch Bn BI YI Gn N 230 Vac Contenta 100 V AC Replace coffee pack Hot Cup Pot water coffee coffee Stop d 6 Refill water tank v H H H H v 9 9 Cold water empty detection Warming up please wait Heater E Floater relay Fi Boiler in_ inlet y First Second Dry boiling Dry boiling OE safety switch safety switch auto reset fatal ZEE TUE ed Inlvalve Zu Y Heating Cold water empty element serial Yg Heater Bn Eee
11. ment by means of operation panel buttons B Disassembly of the dosing coil Store the coffee pack temporarily in a refrigerator In case a fixed water connection is installed start from step 1 If no fixed water connection is installed unplug the power cord and proceed with step 6 1 Closethe faucet and remove the external water supply hose water inside 1 Pour a cup of hot water 2 2 Unplug the power cord 3 3 Remove the tank lid 4 4 Disconnect the silicon water hose 5 as well as the wiring 6 from the inlet valve 5 Remove the retaining screw of the tank 7 and lift the tank from the machine Guide wiring and hose upright trough the opening in the tank 8 6 Remove all machine covers left cover right cover rear cover and top cover and the water tank Top cover About removing the right cover Remove the screw at the rear side Lift the cover about 12 cm 4 Disconnect the flat cable of the On Stand by switch on the control PCB lower left corner Lift the cover from the machine Fixed water parts Hose wiring Left cover Right cover Version 1 36 Functions dosing 1 02 2004 Disconnectthe connectors CN8 CN9 CN13 4 CN14 on the control PCB 8 Disconnectthe wiring of the fan Peltier element and the NTC sensor machine rear side 9 Removethe four retaining screws
12. Cause Action Ref 1 Water tank is damaged Check and replace if necessary Water leakage will not 5A 8 cracked or the tank valve be confined to the right side only PL 9 PL 10 leaks 2 Condensation in cooling Condensated water is partly guided by the frame compartment bridge through the wiring opening to the right side and reaches the machine base behind the main switch 5F 5 Check cooling compartment door and sealing PL 6 PL 7 Water leakage Machine front side Cause Action Ref 1 Excessive condensation in Check ifthe cooling compartment door is properly cooling compartment closing Correct and or replace worn defective 5F 5 cold coffee pack parts PL 6 PL 7 Water remains dripping out of the trough Cause Action Ref 1 Product valve leaks does Check and replace the valve s 5 6 PL 3 not close due to scale deposit Faults 6 Version 1 36 02 2004 Water leakage Machine left side Cause Action Ref 1 Inlet valve scaled Inlet valve does not close properly due to scale and the 5A 7 5A 8 boiler overflows Check replace inlet valve Check also PL 3 PL 10 the water hose for scale when the inlet valve is replaced as this scale may cause instant reoccurrence 2 Tube between inlet valve Open left cover and check correct Always close left and boilers queezed cover carefully in order not to squeeze disconnect tu
13. Disabling or aborting a brewing delivery cycle Pot of coffee Cup of coffee Cup of hot water Continuous flow Portion controlled Continuous flow Portion controlled preset volume Completed or Completed or Completed or Completed or Completed or aborted aborted aborted aborted aborted Water supply interrupted Aborted Completed Aborted Completed Aborted Low temperature brewing delivery enabled boiler temperature 70 0 158 F Low temperature brewing delivery disabled Boiler not filled up Completed Yes Completed Completed Yes Completed Yes Completed Aborted No Completed Aborted No Completed No Aborted No x No x No x No x No x Aborted after Aborted after Aborted after Coffee pack empty No 50 pulses No 50 pulses Yes Completed Yes Completed Yes 50 pulses s excluding cooling No Aborted No Aborted No Aborted No Aborted No Aborted Completed if more than 74 of the set quantity has already been delivered otherwise the cycle is aborted Faults 3 Version 1 36 02 2004 Only coffee concentrate is poured when the cup pot coffee selection button is pressed Cause Action Ref Outlet valve malfunction Connect service device and test product valve 4 4 blocked Check if water is flowing out of the trough Replace valve if necessary 5 6 PL 3 Outlet tube clogged not Remove left cover and check tubes and nozzle connected to the nozzle This mal
14. O coffee stronger Adjusting the coffee strength To increase coffee strength keep the stop button pressed while pressing the cup of coffee button the desired amount of times Wait for the Refill water tank LED to light up when the button has been pressed and proceed To decrease the coffee keep the stop button pressed while pressing the hot water button strength the desired amount of times Wait for the Replace coffee pack LED to light up when the button has been pressed and proceed 7 Coffee pot ratio setting service device only From software version 2 09 the coffee strength ratio of the coffee pot can be set changed independently from the cup ratio range 5 99 default 1 22 8 Exit the programming mode Pres the power button once to exit the programming mode The power LED stops blinking and lights on Installation 8 Version 1 36 02 2004 2 3 Handing over the dispenser to the customer Ensure that the dispenser is working flawlessly once the machine has been installed and programmed according to the wishes of the customer Instruct the user s of the machine regarding the following items Good understanding and commitment will contribute to the overall machine performance Time spent on customer instruction is in this respect invaluable Customer instruction Safety The size and weight of the machine may invite the user to move the machine around It is important to point out that hot water can flow out of t
15. change a setting 1 Select the item with the key Question marks will appear 2 Enter the desired value and store the value by pressing the input key or any arrow Installation sub menu structure presettings are sample INSTALLATION m v FLOW OUTLET VALVE 19 0 CC SEC CALIBRATION FLOW 0 5L 1 ON 0 OFF POT DISABLE 0 0 NO 1 YES 0 AUTO SWITCH OFF AFTER 0 HOURS POTVOL 900CC MIN 20 MAX 999 Olm COFF POT BUTTON PRICE LINE 0 POT RATIO 1 22 MIN 5 MAX 99 COFF CUP BUTTON PRICE LINE 0 WATER 0 0 CF 1 PC HOT WATER BUTTON PRICE LINE O0 WATERVOL 125 MIN 20 MAX 500 BUTTON PROGRAM 1 0 1z YES CUPMODE 1 0 CF 1 PC OI BOILER TEMP LOCK 1 0 NO 1 YES CUPVOL 125 MIN 20 MAX 999 BOILER TEMP 92 Y MIN 83 MAX 96 RATIO 1 22 d MIN 5 MAX 99 10 11 12 13 14 15 16 17 See next page for the remarks concerning the installation sub menu Programming 2 Version 1 36 02 2004 Remarks installation sub menu 10 11 12 13 14 15
16. current of the element 3A at 11V 5 1 PL 5 Replace if defective 2 Cooling fan defective Check the input voltage CN7 2 and fan connectors 5F 1 PL 5 Rear side of the machine 3 Heat sink dirty Clean the heat sink and remove the cause of excessive 5F 2 PL 5 dust Check also the ventilation space 4 Temperature sensor error Check the sensor at an ambient room temperature 5 2 PL 5 20 25 C 68 77 F 6250 5000 Ohm and replace if necessary 5 Wiring control PCB Check the wiring connectors Check the 11V circuit 5K 5 defective measuring point Replace control PCB if necessary 5K 1 PL 2 6 Poor contact conduction Check the torque if the required tools are available 5 2 PL 5 between cooling box Peltier and apply conductive paste to the Peltier element element and heat sink Faults 8 Version 1 36 02 2004 Power on Stand by switch does not function cooling is on Cause Action Ref 1 Incorrect connection of the Check if the cooling fan is working If working then wiring flat cable to the Connect the flat cable of the switch with the black line On stand by switch up facing you If the fan is not working a power failure is occurring see below Machine does not function Power LED cooling fan Cause Action Ref 1 Wiring or connectors Remove right cover and check the connectors of the 5K1 disconnected control PCB Correct if nec
17. device into the 9 pins D connector standard service device connector 4 Switch the service device on 5 Switch the machine on The programming mode is now enabled Scroll through the main programming menu with the up down keys and press input to enter a sub menu to change any settings remark the time out is 5 minutes 6 Switch the dispenser to stand byafter programming T Disconnect the service device switch it off and reinstall the machine cover 8 Switch the machine on D Should the machine become locked up during programming unplug the service device for about 30 seconds and retry However if a microprocessor is exchanged for upgrading etc all LED s will light on when the machine is switched back on During this period the new microprocessor is initialised A Programming mode structure BAD DOSING CONTENTAV 2XY oT DD MMYEAR It is possible that the last detected key error is displayed directly after the service device is connected See also chapter 3 page 1 INSTAELATION D m READ COUNTERS a m TESTING Programming 1 Version 1 36 02 2004 B Installation sub menu Enter the installation sub menu to change or view machine settings You can scroll through the various items with the keys and select an item with the key Press also to return to the main programming menu How to
18. fan Dust filter Functions Machine control 4 Version 1 36 02 2004 2 Control board component lay out and in output voltages V 2 4B u CN12 CN6 CN18 00595 01055 R5410 C6290 wer 85370 alle 2 U4110 R5350 ag LEE 42 8 129040 1 nt CN13 R5310 R5340 er N2020 8 01020 2 5 5 7 1 R5000 C6000 uso sw ENS 8 61000 e 5 BR 3000 e U6030 U6020 R5095 r 5 3 3 CN16 all D1000 E BE E 5 CN15 R5090 08254 02258 09295 o 2 o 5 5 o 2 3 3 N2000 00022 N2010 C 01055 05095 04050 voto 03030 00000 CN10 R5140 e U4030 Voltage measuring points ovorn o z 05195 00199 02299 09299 05299 08195 01012 R5270 5260 amp 3 03020 03110 U3120 G1010 2 D1050 8 AS ALL Ave ASL
19. hose included in kit 8 Hose connector Existing silicon water supply hose Water inlet amp assembly New wiring for the inlet valve coming from CN11 9 Remove the retaining screw from the machine frame as illustrated and place the water tank with the pre installed valve Guide the hose and wiring through the opening in the bottom of the tank Version 1 36 Functions water 14 02 2004 10 Fix the tank with the included retaining screw 1 and connect the hose place the hose clamp 2 and the two wires 3 to the inlet valve inside 11 Connect the flexible metal water hose to the valve at the rear side of the tank 4 Do not forget to place the sealing ring 12 Connect the water block to the water cock see the included instructions and connect the flexible metal water hose 5 13 Open the water cock plug in the power cord and switch the machine on Check the machine performance and ensure that no hose or connection is leaking 14 Install tank lid and left machine cover Version 1 36 Functions water 15 02 2004 Version 1 36 02 2004 5C Dosing system 1 Disassembly and adjustments A Coffee strength adjustment Dosing of the coffee concentrate i e adjustment of the coffee strength is done by means of 1 the service device or 2 operation panel button programming Please refer to chapter 4 page 2 for service device programming or chapter 4 page 5 for dosing adjust
20. hot water cup of coffee pot of coffee stop main on off switch cooling error led main on off led Title GND Size Number Revision A4 Date 30 Jan 2004 Sheet 1 of11 File Cont_V24C ddb Drawn By 3 4 45V T C2010 Uref 45V Oo 10nF a AGND C6260 N2010B 2 1 10nF 24V AGND C6130 C619 10nF 100nF a a AGND AGND 24V CN5 1 2 CN6 3 2 1 v3 C6210 T00nF E JST B 2B XHA D1030E 7 8 0 44V sup 9 TO 44Vre JST B 9B XHA 74HC04 GND AGND 424V 45V 45V TE C1050 10nF 10nF a GND GND V4070 V4080 1N4002 1N4002 D1050A 424V lt V3020 R5270 2 V4050 2 1 24 BC557 lt BC337 ik 74HC04 R5200 R2220 100k 100k D1050E R5230 m ub O C 74HC04 Ge 5 a 6i 2 V3010 5240 74HC04 547 100k Ik C6220 D1050C 3 150pF Title CONTENTA Boiler GND GND GND Size Number Revision Orcad A 810900 V24C Date 30 Jan 2004 Sheet of 2 11 File Cont V24C ddb Drawn By N w gt 1 2 3 4 Cha 8000 3 5 4 10k 3 2 1 R5110 i ses NOCO 1 R5120 Dees 10k 1 R5130 2 E CNI 11V 6 2 5 4 D 24 additional blower
21. of the dispenser Introduction amp Safety 1 Version 1 36 02 2004 Safety General remark concerning safety This subsection is intended as an overview of the warnings and instructions used in this manual that must always be observed The following general safety precautions apply to the operation and maintenance of the machine and must always be observed Non observance of these instructions or any other safety precautions mentioned in this manual could impair the machine safety standards lead to dangerous situations and the manufacturer cannot be held responsible for possible damages Service technicians must thoroughly read and understand the Service Manual and operating instructions before they can install the dispenser and put it into operation The service technician must hand over and explain the operating instructions to the customer Installation startup programming and if required repair of the dispenser must be performed by trained and authorized service technicians only Hazard intensity levels There are three different levels of hazard intensity identified by signal words DANGER WARNING and CAUTION The level of hazard is determined by the following definitions DANGER Sudden hazards that WILL lead to either serious personal injury or death WARNING Hazards due to dangerous behaviour that CAN lead to either serious injury or death CAUTION Hazards due to dangerous behavior that can lead to either minor injury to pe
22. operated by the B2 dosing coil A current of 5 2 A is applied to the B2 dosing coil to generate a magnetic field that generates the pumping action Dosing system structure Dosing coil The dosing coil assembly is available as a single spare part The sub parts are not separately available IR receiver NOaRAN gt Housing Lower sealing rings Retaining screws 1 8 IR transmitter B2 dosing coil Upper sealing ring CO Dosing pump The dosing pump is an intregrated part of the coffee pack and can not be disassembled or adjusted It is a closed system to prevent that air can affect the quality of the coffee concentrate 8 Dosing tube 9 Floater 10 Tappet 11 Tappet ring 12 Ring carrier 13 Inlet valve 14 Bellow 15 Outlet valve 16 Outlet nozzle Version 1 36 Functions dosing 5 02 2004 Dosing sequence 1 The system is at rest There is coffee concentrate present in the bellows 2 When a magnetic field is generated the tappet consisting of the tappet ring ring carrier and inlet valve is pulled downwards The bellows filled with concentrate is squeezed and delivers the coffee concentrate via the outlet valve to the trough The dosing pump will deliver approx 0 105 cc during 1 pulse of 6 8 ms effective pulse duration 6 5 7 2 ms 3 Directly after the pulse the tappet moves upwards the bellows assumes its normal shape and the next bit of coffee concentrate flows into
23. sight after installation Installation of the fixed water connection kit see the parts catalogue for kit contents 1 Checkthe water quality and water pressure Install a water filter softener if necessary min 0 8 bar dynamic pressure max 10 bar static pressure 2 Disconnect power cord and remove water tank as well as the left right machine cover 3 Empty the boiler Caution boiler may contain hot very water 4 Disconnect hoses still water inside and wiring from the inlet valve and remove the inlet valve 5 Connect hoses to the boiler as illustrated Water hose connection to the boiler Silicon Water inlet hose Hose connector 90 Angular piece to boiler 9 ut Removed v dj inlet valve Version 1 36 Functions water 13 02 2004 6 Disconnect the connector 4 wires of CN11 in the upper right corner of the control PCB and connect instead the prepared connector 2 wires Disconnect current connector 4 wires Connect new connector 2 wires at CN11 7 Disconnectthe silicon hose of the water inlet assembly and remove the water inlet assembly itself 8 Connectthe hose included in the kit and connect it directly to the water supply hose Guide the hose together with the wiring through the opening in which the water inlet assembly was installed Reinstall the right cover electronics cover Silicon
24. the fixed quantity 0 5 litre 16 9 fl oz and the time that was needed to dispense this amount Programming 6 Version 1 36 02 2004 F Coffee ratio setting The coffee strength is determined by the mix of coffee concentrate and water This mix is formulated as a ratio of 1 volume part of coffee versus a given number of water parts e g ratio 1 20 indicates that the coffee itself is composed of 1 part coffee concentrate and 20 parts of water When the coffee is made stronger the number of pulses needed to produce a certain coffee strength is increased First the machine calculates the time during which coffee can be dosed based on the parameters of valve flow and cup volume and thereafter the actual number of pulses This implies that the coffee becomes stronger when the relative number of water parts decreases Ratio 1 19 produces therefore stronger coffee than ratio 1 20 Ratio 1 20 ratio 1 16 1 17 1 18 1 19 1 20 1 21 1 22 1 23 1 24 atar 1 10 1 50 Coffee parts Water part decreases Water part increases coffee becomes stronger coffee becomes less strong gt Checking the current ratio Push the stop button and the pot of coffee to check the ratio setting If the Replace coffee pack and Refill water tank Check water supply LED s on the operation panel light up simultaneously the dispenser is set to the default setting 1 20 The coffee is stronger than default when the Refill water tank Check wat
25. water tank version illustrated here NSF machines feature two additional labels attached to the inside of the cooling compartment door Branding sticker lower middle of the door Operation panel Quick reference label frame opposite to water tank Version 1 36 Installation 4 02 2004 3 Depending on the version you are installing proceed with 3a for machines with a removable water tank or 3b for machines with a fixed water connection 3a Fill the cold water tank Check if the sieve inside the tank is correctly placed over the water outlet Outlet c gt S m 3b Confirm that the installation conditions are met for usage of the fixed water connection Important Ensure that the installation conditions are met before you install the fixed water connection see page 1 Always observe local regulation regarding plumbing Water pressure allowed Min 0 8 bar dynamic pressure Max 10 bar static pressure Make sure that the caution label indicating these pressure values is in clear sight after installation KA xe E D Es 1 Connect the water stop valve to the faucet E 2 Connect the flexible water hose to the machine Do not forget to put the sealing ring in place S 3 Flush the water filter The necessity of thi
26. 10 1 42 430 1 31 320 1 43 440 1 32 330 1 44 450 1233 340 1 45 460 1 34 350 1 46 470 360 1 47 480 1 36 370 1 48 490 380 1 49 500 1 38 390 1 50 510 90 mm 3 5 H x 90 mm 3 5 W x 230 mm 9 D 560 mm 22 H x 325 mm 12 8 W x 360 mm 14 2 D 12 Kg max 19 0 Kg max 40 dB A at 1 metre 3 3 ft stand by mode 85 240 V AC 50 60 Hz Switch mode power supply Europe max 2100 W Japan max 1280 W USA max 1480 W between 1 and 32 34 90 F up to 80 RH 15 minutes per day 7 years Thermo electrical Peltier element with fan 1 25 litres 42 3 BIB bag in box 3 5 C 37 4 41 F Heating element 2100 W 1 8 litres 60 8 fl oz Adjustable between 83 96 C 181 205 F Water container with a capacity of 3 litres 101 4 fl oz or a fixed water connection see also chapter 5A B2 dosing coil Coffee pot 940 ml 31 8 fl oz Coffee and hot water 20 999 cc 0 6 33 oz 8 10 sec 125 4 oz 20 999 ml 0 6 33 oz factory setting 900 ml 30 4 fl oz 60 sec 230V 120 sec between two pots 120V 188 sec between two pots 110V 228 sec between two pots Version 1 36 02 2004 Version 1 36 02 2004 3 1 Indications Machine status and errors are communicated by means of LED indicators On Off Blinking It is also possible to display the last error detected by connecting the service device The following malfunctions may be displayed directly after the service device is connec
27. 122 1802 55 131 1495 E 80 176 60 140 1246 5 65 149 1044 70 158 878 5 2 75 167 742 8 9 80 176 630 7 5 85 185 537 9 o 60 140 90 194 460 6 95 203 395 9 3 100 212 341 6 E out of measurement range 40 104 500 1000 1500 2000 Temperature sensor resistance in Ohm Figure 5 a 10 output data control Water dosing When the hot water button is pressed the front outlet valve opens and the programmed amount of hot water is delivered When the coffee button cup pot is pressed the rear outlet valve opens Outlet valve open control Delivery mode portion control Set cup volume ml water flow ml s open time sec Delivery mode continuous flow Valve opens as long as the specific button is pressed Version 1 36 Functions water 11 02 2004 Overflow prevention If water exceeds the maximum level it will flow into the overflow tube and is flowing out of the machine A thermistor is mounted next to the hose When the thermistor detects the presence of hot water gt 63 C 145 F 5 C 9 F it will activate the safety circuit the LED above the main switch starts blinking and power is shut off The machine can be reset by means of a switch that can be reached through an opening at the rear side of the machine Dry running prevention The dry running prevention is operated by temperature detection bi metal integrated in the heating element connector When the boiler temperature exceeds the limit
28. 16 17 waterflow of the outlet valves Calibrate the coffee valve after installation of a new boiler valve and installation See chapter 5A for boiler replacement Default auto switch off time is 4 hours Selection of price line 0 1 or 2 for optional payment systems Selection of price line 0 1 or 2 for optional payment systems Selection of price line 0 1 or 2 for optional payment systems Enable disable button programming the pot volume setting must be done by service device When set to 1 it is not possible to dispense hot water or coffee after the boiler temperature has dropped under 70 C 158 F Condition T__ 3 C 5 4 F set When set to 0 this limitation has been disabled The boiler temperature can be set between 83 96 C 181 205 F It may be possible that the boiler LED starts blinking when the temperature is decreased 4 C 7 2 F or more boiler temperature high fault Switch the machine off for a while when this occurs Enable disable the pot function Pot volume in ml The coffe pot is always portion controlled The customer has to press the stop button when less than 0 9 litre 30 4 floz is needed It is of course possible to set any given volume between 2 20 ml and 999 ml by means of the service device Coffee strength setting for the pot version 2 09 and higher Select Portion control or Continous flow for the hot water button according to the customer wish The default setting is Conti
29. 2 1 D 5V 3 JST B6P VH JST B 3B XHA 1 R5140 2 270 V4030 GND GND LED3RED GND GND GND 24Vsup D 19V75sup ne ooo A 1010 7737777 RELAIS E3208 SEL pm 19V75 O 24V R5150 1 2 2 BTS a 10K gt RET CHECK D1020D 74HC00 GND Title CONTENTA Powersupply Input Size Number Revision Orcad A 810900 V2 4C Date 30 Jan 2004 Sheet of 3 11 File Cont_V24C ddb Drawn By 1 2 3 4 5V 5 C6040 10uF 2000 10nF 5V a a AGND AGND N2000 ADC0838 Be j B E CHI 3 SE CH2 1 16 an 5 CLK CH 5 CH5 CH 17 DI 5080 2k7 12 VREF 1l 9 i AGND COM Uref C6050 V4020 10nF ILT1004 1 235 a AGND 5V AGND In IR5070 IR5060 lk 1k AGND D1010 25 3 n a 4 po era EEPROMCE gt Er 5V 9346 R5470 OE C1010 10nF GND AGND Title CONTENTA AD converter Size Number Revision Orcad A 810900 V2 4C Date 30 Jan 2004 Sheet of 4 11 File Cont_V24C ddb Drawn By 2 3 4 N2010C 8 This capacitor will be solder additinal on 10nF a the PCB E6235 10uF AGND a AGND CN7 cooling 11V temp 5 a 1 CNIS cooling 2 1 1 blower 100nF 2 FASTON 4 8X0 8 JST B 6B XHA AGND CNI6 R5440 1 peltier 68 2W
30. 201 SIS code K17 SIS code K13 EEPROM Part number Fuse Part number SIS code K18 SIS code K14 Wiring connectors Part number Various SIS code K15 Electronics fan Part number 19350 SIS code K19 SD connector Part number SIS code K20 Side panel board Part number 19164 Relay SIS code K16 Part number 19198 SIS code K21 Operation panel PCB Part number 19163 SIS code K22 K10 Other fault in control system general K16 Side panel board K11 Reed sensor trough detection K17 Power supply board K12 Control PCB K18 Fuse K22 Operation panel PCB K13 Micro processor K19 Electronics fan K14 EEPROM K20 Service device connector K15 Wiring amp connectors K21 Relay Valve Part number 22811 SIS code L11 Silicon hose Part number 19230 SIS code L12 L10 Other fault in Fixed water connection general L11 2 Way valve 24V to kit water connection L12 Silicon hose Version 1 36 02 2004 Version 1 36 02 2004 8 Service Information Bulletins Contents 02 2004 Not available Version 1 36 Version 1 36 02 2004 9 Modification Instructions Contents 02 2004 Not available Version 1 36 Version 1 36 02 2004
31. 6L Functions Machine control 5 Version 1 36 02 2004 Pin in and output voltages Connector pin Voltage 1 1 5V 1 2 GND 1 3 19 75V 1 4 24V 1 5 GND 1 6 11V 3 1 11V 3 9 GND 3 3 5 1 5 2 e 5 3 5 4 24V 5 5 0 24V 5 6 24V 5 7 0 24V 5 8 24V 5 9 6 1 24V 6 2 0 24V 74 6 7 2 24 V 16 4 V 753 GND 7 4 GND 7 5 e 7 6 8 1 8 2 e 8 3 8 4 9 1 9 2 9 3 9 4 0 5V 9 5 0 5V 9 6 0 5V 9 7 0 5V 9 8 0 4V 9 9 0 4V 9 10 0 4V 10 1 0 4V 10 2 10 3 0 4V 10 4 0 4V 10 5 10 6 Functions Machine control 6 Remarks Power supply 5 V circuit Power supply 19 75 V circuit dosing coil Power supply 24 V circuit Power supply 11 V circuit peltier element Power supply additional fan Additional fan GND Not connected NTC sensor boiler NTC sensor boiler analogue GND Boiler level sensor Hot water valve supply Hot water valve return OV On 24V off Coffee valve supply Coffee valve return OV On 24V off Safety circuit supply Safety circuit return Heater relay Heater relay return OV On 24V off Cooling fan GND Cooling fan power supply Not connected Not connected NTC sensor cooling analogue GND NTC sensor cooling GND emitter wire III B2 empty detection collector wire Ill GND kathode wire II IR LED anode wire GND Shield GND Shield GND Stop switch 0V Pressed 5V Not pressed Pot of coffee switch 0V Pres
32. DOUWE EGBERTS Service manual Contenta Cafitesse 50 Version1 36 72X February 2004 Part number 89210190 A Company Contents 1 Introduction and Safety 2 Installation 2 1 Installation requirements 2 2 Installation procedure 2 3 Handing over the machine to the customer 2 4 Dispenser description 2 5 Specifications 3 Faults 3 1 Indications 3 2 Troubleshooting 4 Programming 4 1 4 2 4 3 44 4 5 Programming by means of the service device Programming by means of the operation panel buttons Flow chart service device programming Flow chart button programming Default settings 5 Functions 5A Water system 1 Disassembly and adjustment Boiler replacement Boiler temperature adjustment Heating element replacement Temperature sensor replacement Level sensor replacement Product valves replacement onmoom Disassembly of the water inlet valve Version 1 36 02 2004 Preface and Safety Instructions Installation Faults Programming Functions Water System Dosing System Product Delivery Cooling System Housing Cabinet Control Preventive Maintenance Service Procedures Service Information Bulletins Modification Instructions Spare Parts List el P IL Version 1 36 02 2004 Version 1 36 02 2004 Introducing The Contenta Cafitesse 50 forms the low end extension of the liquid coffee concentrate brewer range Serving the small segment of th
33. DZ BT 10 D1030B Front panel 3 O 74HC04 D1030D D 8 74HC04 GND Title CONTENTA Front Panel Size Number Revision Orcad A 810900 V2 4C Date 30 Jan 2004 Sheet of 8 11 File Cont_V24C ddb Drawn By 1 2 3 4 45V D1050D side panel 45V 24V C D1040F CN V4110 74HC04 1N4002 Cold water empty det Cold water D1040E valve 2 R5420 ON tA D 74HC14 JST TEEN GNDGNDGND GND GND Title CONTENTA Side Panel Size Number Revision Orad A 810900 V2 4C Date 30 Jan 2004 Sheet of 9 11 File Cont_V24C ddb Drawn By 3 4 N2020B D1020B D1020C 4538 D1050F 9 14 10 6 C6000 BE 9 13 12 e 1 DENSIS cx 45V 5V TAHCOO sy 74HC00 220nF 12 E 74HC04 um 45V R5090 19 gt C1005 SIL9 1 10k R5000 10nF 10nF III 100k o E 24 lt GND D1000 GND 31 Env a C6030 ih R5010 1 p 19 100k xi N2020A C6020 27pF G1000 4538 27pF 12MHz 18 x2 2 al GND C601 5 220n 12 9 RESET e ur T 7 INTO QI INTI un e 1 2 PLO 1 P1 2 5 IPIS c Rud P1 5 E 7 PI GND P17 C2020 80C52 10nF E R5095 GND SIL9 1 10k Deg V4010 les IN4148 45V T5V
34. K 6 and replace if necessary 5K 1 PL 2 Actual pot volume is far less than the preset 900 ml Cause Action Ref Water tank is empty before See the table on page 3 and change setting total volume was dispensed if necessary LED will also light on The boiler temperature See the table on page 3 and change setting dropped during delivery if necessary LED will also light on Faults 4 Version 1 36 02 2004 Only half cups portion control or long time needed to fill a cup cont flow Cause Action Ref 1 Tube s of the inlet valve is Open left cover and check the in outlet tubes are partially disconnected or ofthe inlet valve When partially disconnected squeezed when the left leakage at the right machine side will also PL 3 cover was closed occur 2 Outlet tube clogged not Remove left cover and check tubes and nozzle connected to the nozzle This malfunction implicates that water is leaking or clogged nozzle at the left side of the machine 5A 6 PL 3 Only water is poured when the coffee button is pressed Cause Action Ref 1 Failing empty detection Coffee inside pack dosing tube is clogged LED does not light up Replace the pack The circular opening in the base through which the dosing tube is guided is dirty Clean if necessary The empty detection assembly is defective Replace if necessary 5C 1 PL 8 Control PCB malfunction or the connector wiri
35. TWATER 00000 Max count 99999 No reset TOTALLITRESOF COFFEE 00000 1 Y TOTAL LITRES OF CLR HOTWATER 00000 TOTAL LITRES OF CLR COFFEE 00000 Max count 99999 No reset Max count 99999 Reset possible Max count 99999 Reset possible Programming 4 Version 1 36 02 2004 D Testing sub menu Enter the installation sub menu to test functions and components You can scroll through the various items with the up down keys and activate a machine part or function with the 1 key The part function can then be noticed or the function related in output voltages can be measured Testing sub menu structure TESTING ene y CONCENTRATE TEST 1 ON FOR 1 SECOND ol 0 ALL LED S 1 ON FOR 1 SECOND cl le HEATING ELEMENT 1 ON FOR 1 SECOND o PELTIER ELEMENT 1 ON FOR 1 SECOND A Y COFFEE VALVE 1 ON FOR 1 SECOND Y HOT WATER VALVE 1 ON FOR 1 SECOND o m WATERINLET VALVE 1 ON FOR 1 SECOND sl Programming 5 B2 Coil Dosing test The dosing pump of the coffee pack action should be clearly audible Place a cup under the coffee outlet and clean the trough afterwards LED test Verify that every LED is properly functioning Heating element relay test When actuated the relay wil
36. able but release the two retaining clips at each side of the connector Loosen the retaining screws of the cooling compartment assembly 4 at each side of the frame and lift the cooling comparment a little to create some space for the flat cable to pass through Functions Machine control 3 Version 1036 02 2004 10 Remove the screws of the operation unit 3 screws to separate the unit from the cooling compartment The button assembly and operation board can now be removed 11 Reassemble the parts in reverse order Operation unit PCB Button sheet Operation unit retaining screws 3 D Electronics fan replacement In case a fixed water connection is installed start from step 1 If no fixed water connection is installed unplug the power cord and proceed with step 6 1 Close the faucet and remove the external water supply hose water inside Pour a cup of hot water Unplug the power cord Remove the tank lid Disconnect the silicon water hose as well as the wiring from the inlet valve Remove the retaining screw of the tank and lift the tank from the machine Guide wiring and hose upright trough the opening in the tank Remove the water tank and the right cover 1screw Remove the dust filter Loosen the retaining screws 2 of the fan 0 Take the fan and disconnect the wiring from the Operating unit PCB CN3 1 Reassemble the parts in reverse order SAN Retaining screws Cooling
37. artment itself has to be replaced In case a fixed water connection is installed start from step 1 If no fixed water connection is installed unplug the power cord and proceed with step 6 1 Close the faucet and remove the external water supply hose water inside 1 Pour a cup of hot water 2 2 Unplug the power cord 3 3 Remove the tank lid 4 4 Disconnect the silicon water hose 5 as well as the wiring 6 from the inlet valve 5 Remove the retaining screw of the tank 7 and lift the tank from the machine Guide wiring and hose upright trough the opening in the tank 8 6 Remove all machine covers left cover right cover rear cover and top cover and water tank About removing the right cover Remove the screw at the rear side Lift the cover about 12 cm 4 Disconnect the flat cable of the On Stand by Switch on the control PCB lower left corner Lift the cover from the machine cover Right cover T Disconnect the connectors CN8 CN9 CN13 amp ENS CN14 on the control PCB CN8 Functions Cooling 3 Version 1 36 02 2004 10 11 12 Disconnect the wiring of the fan Peltier element and the NTC sensor machine rear side Remove the four retaining screws of the complete cooling compartment on both sides of the machine frame Tilt the complete cooling compartment a little towards
38. ater A21 Inlet valve A28 Boiler T A15 Outlet water tank A22 Level sensor boiler A29 Heating element A16 Sieve water tank A23 Outlet valve coffee A30 Outlet nozzle Version 1 36 02 2004 Empty detection Part number 20892 SIS code C11 Dosing coil Part number 20892 SIS code C12 Ingredient quality Part number SIS code C13 Expiration date Part number SIS code C14 Dosing spout Part number SIS code C15 C10 Other fault in dosing system general C13 Ingredient quality C11 Empty detection C14 Expiration date C12 Dosing coil C15 Dosing spout Trough Part number 19470 SIS code D11 Hot water outlet Coffee outlet Part number Part number SIS code D13 SIS code D12 Drip grid Part number 17874 SIS code D14 Drip tray Part number 18230 SIS code D15 gt Contenta pot Part number 21243 2 SIS code D16 6 D10 Other fault in product delivery general D14 Drip grid D11 Trough D15 Drip tray xe D12 Coffee outlet 016 Contenta pot o D13 Hot water outlet Version 1 36 02 2004 Door sealing Part number SIS code F16 Peltier element Door lock Part number 19353 Part number 19497 SIS code F11 SIS code F17 Heat conduct paste Part number SIS code F12
39. be 3 Machine has overboiled or Reset the machine Unplug the power cord when hot water has entered the before touching the reset switch overflow tube 4 Damaged boiler Check inlet of drain hose inlet hose for small cracks Check connection between upper lower part welded Check front boiler leg for presence of cracks Replace boiler if necessary 5A 1 PL 4 5 Water level probe fault Check probe and its connections Check if the GND 5A 5 overflow is connected Check boiler connector 24VDC 5A 1 Illustr Connect if necessary Heating element wiring not connected no GND for level probe pulse Connect if necessary PL 4 6 Boiler lid sealing not well Condensated water leaks through the sealing Check 5A 5 PL 4 the isolation at the side of the boiler opposite of the frame for traces of water scale T Outlet valves not correctly Check Correct installed 8 Outlet tubes not connected Check Connect to nozzle 9 Boiler overflow failing level Measure restistance between black GND wire of the 1038 detection due to poor power power board connector and the black GND at the back board GND connection side of the board If gt 0 Ohm replace power PCB If 0 Ohm check Resistance between one of the black GND wires and the lead GND in the middle of the heating element plug If 0 Ohm check connections wiring Faults 7 Version 1 36 02 2004 Cooling errors Cause Action Ref 1 Peltier element defective Measure
40. ble if a fixed water connection is installed the sensor is not connected If the water tank is empty or the water supply is interrupted in case of a fixed water connection and the boiler is not filled the heating element will be switched off to prevent overheating and the dosing is disabled to prevent bad dosing Water is present inside the water tank correct water supply to the boiler The LED starts to blink when the boiler is not filled within 25 seconds or 120 seconds after the machine has been switched on while the inlet valve is open In case a fixed water connection is present it indicates that the water supply is interrupted or shut off More than 500 ml 16 9 fl oz water has been supplied in the stand by mode the counter is reset when coffee or hot water is being dispensed The Boiler temperature low LED and the Cold water empty LED will blink alternately The power LED is off 5 Coffee empty LED On No coffee concentrate present The presence of coffee concentrate filled BIB dosing tube is detected by an IR transmitter receiver in the dosing coil assembly If no concentrate is detected the IR beam is not interrupted and the LED will light on Coffee dosing is stopped 50 dosing pulses after the empty detection signal to dose the remaining 5 ml in the tube Hot water remains to be delivered thereafter from the coffee outlet Off Coffee concentrate present normal status Disabling or aborting a delivery
41. ce is disconnected 9 the warning will be removed from the memory eg When the Service Device is connected it Ge o o a Unplug the power cord Remove the Service Device Re install the left side cover Switch on the CONTENTA Boiler temp lock On when T lt 70 C Off when T T set 4 C Cup delivery will be completed Pot delivery will be completed when it has reached more then 74 of its volume Boiler heating control Heater on off On when T T set 3 C Offwhen T Tset 2 C When dosing a pot T temp T set 2 C Overheating prevention Activated when Software T T set 4 Manually reset only Flow SD prog conten a sch eie E T 96 T E e ej je Let Ze ie Programming 8 Version 1 36 02 2004 4 4 Programming flow chart button programming O BuisseJd 7 uoyng Jajem Joy eu p nb se SOW LOH DIOU pue ssald 60 5 eejjoo BuisseJd yym Bursing y jueuuysn pe p nb se SOW sseJg LOH DIOU pue ssald D 175455 sapos eseeJou y Bua s sapos eu Buysnipy SI 89409 941 sesind oz O sesind O O
42. e out of home market it is designed for outlets with an average coffee consumption of 45 cups per day without significant consumption peaks Entering a large and competitive market the Coffee dispenser sets a new standard with its distinctive features as compared to conventional pour over coffee service it excels in convenience speed constant product quality and design The Contenta Cafitesse 50 design is geared towards convenience It delivers 1 coffee either in a cup or pot that comes with the machine additional pots are available as an accessory and 2 hot water for tea or instant drinks In effect the Coffee dispenser is a smaller liquid coffee brewer and the technical aspects in this manual are quite similar to that of the larger Cafitesse brewers OCS To exploit the mentioned inherent qualities the Contenta Cafitesse 50 is placed in the framework of the Office Coffee Service concept OCS The concentrated coffee and other ingredients are distributed directly to the customer by a service sales representative who also performs relevant preventive maintenance tasks such as boiler exchange for descaling Extensive and or time consuming repairs and maintenance such as preventive boiler decalcification is basically done in a central workshop The customer will benefit from this system as it greatly reduces the machine down time The efficiency of this system is also warranted by the modular and straight forward construction
43. e the local regulations Do not connect the dispenser to any power source other than indicated on the rating label Never immerse power cord or the machine in water or any other liquid Introduction amp Safety 3 Version 1 36 02 2004 INGREDIENT HANDLING CAUTION Ensure that the cooling compartment is properly closed at all times The coffee quality may otherwise deterioriate Store coffee packs only in a refrigerator at a temperature below 6 C 42 8 F Always check the expiration date on the package best before date and use the coffee pack that has been stored for the longest period first in first out principle Introduction amp Safety 4 Version 1 36 02 2004 2 Unpacking and installation 2 1 Installation requirements Required tools Tools to make the required water connections if applicable service device is needed to adjust set volumes coffee strength device calibration etc To remove covers a Pitcher torx no 10 left right rear side cover and no 15 tank lid inlet valve is required General requirements Please ensure that the following requirements are met before you install the machine Ambient temperature 1 32 50 90 F Humidity up to 80 RH Power supply Europe 230V 10A Europe Japan 100V 12A USA 120V 15A Determine the capacity of the electrical circuit before the machine is connected to prevent overload min spare capacity depending on version It is r
44. ecommended to connect to an electrical circuit equipped with a fault current safety switch The machine must be connected to a grounded outlet conform regulations Water supply Water pressure allowed Min 0 8 bar dynamic pressure Max 10 bar static pressure fixed water connection Please measure in case of doubt o Always operate in compliance with local regulations Location Avoid direct exposure to hot or cold air vibration and excessive amounts of dust Do not install the machine in the immediate vicinity of a stove or sink to avoid extreme temperatures or humidity Place the machine on an even stable surface capable of supporting the weight of the machine approx 19 Kg and beyond the reach of small children The location should allow proper access for operation and maintenance of the machine as well as enough space behind the machine for ventilation 560 mm 22 600 mm 23 6 Sa mm m 14 2 recommended clearance around the dispenser 120 mm 4 7 Machine dimensions space requirements Installation 1 Version 1 36 02 2004 2 2 Installation procedure 1 Machines shipped with a removable watertank See chapter 5A for additional installation of the fixed water connection kit 1 Unpack machine 6 Switch machine on 2 Attach labels operation panel 7 Place chilled coffee pack cover 3 Fill cold water tank 8 Rinse the wat
45. ement Unplug the power cord of the machine Remove the left cover Remove the lid of the boiler 4 screws The boiler contains very hot water The level sensor will be hot as well Disconnect the wiring of the sensor Remove the retaining clip The sensor can be pulled out from the inside of the lid Assemble the machine in reverse order Make sure that the wiring is properly connected If the sensor is not connected the boiler will overflow as the boiler upper level detection is failing Retaining screws Gi Sensor wiring Retaining clip Boiler lid Boiler lid sealing amp Spacer Level sensor Version 1 36 Functions water 5 02 2004 F Product valves replacement The coffee valve and hot water valve are part of a single boiler assembly Rather than disassembling the valves separately the boiler is replaced as an assembly See boiler replacement page 1 To remove the valves Uplug the power cord Remove the boiler Disconnect the wiring Disconnect the outlet hoses Remove the retaining screws Gently pull the valves out of the boiler Reassemble in reverse order It is recommended to replace the sealing rings between valve and boiler together with the valves Make sure that the sealing rings are not damaged worn down and correctly positioned Hot water coffee valves Connectors coffee valve Orange wiring Connectors hot wate
46. er supply LED of the operation panel is blinking and the coffee is less strong when the Replace coffee pack LED is blinking Count the number of times that the LED is actually blinking and add in case of the Replace coffee pack LED or substract in case of the Refill water tank Check water supply LED this from the default value 1 20 to determine the actual ratio E g if the Refill watertank Check water supply LED blinks 3 times coffee is stronger substract 3 from 20 to obtain the ratio value 71 17 gt Adjusting the coffee strength To increase coffee strength keep the stop button pressed press the cup of coffee button wait for the Refill watertank Check water supply LED to light up and proceed REPLACE COFFEE PACK HOT WATER COFFEE NA e WATERTANK Y O WARMING UP PLEASE WAIT a e For US REFILL WATERTANK CHECK WATER SUPPLY To decrease coffee strength keep the stop button pressed and press the hot water button wait for the Replace coffee pack LED to light up and proceed 79 COFFEE PACK HOT WATER COFFEE REFILL WATERTANK Y WARMING UP PLEASE e For US REFILL WATERTANK CHECK WATER SUPPLY Programming 7 Version 1 36 02 2004 4 3 Programming flow chart service device Switch off the CONTENTA Remove left Side cover Service Device eg Switch on the will show the current or last error warning After the Service Devi
47. er system thoroughly 4 Connect power cord 9 Calibrate and program machine 5 Install drip tray with grille Installation completed and trough Installation 2 Version 1 36 02 2004 2 Machines shipped with a fixed water connection plumbed in unit Check water quality water pressure requirements min 0 8 Tuer bar dynamic pressure max 10 5 Install drip tray with grille bar static pressure and trough 1 Unpack machine 6 Switch machine on 2 Attach labels operation panel 7 Place chilled coffee pack cover 3 Place water stop valve 8 Rinse the water system install water filter thoroughly and connect water supply hose 9 Calibrate and program machine 4 Connect power cord Installation completed Additional labels NSF 25 version NSF US zi version N E The numbers correspond with the steps of the procedure Size and type of filter may vary depending on local circumstances Not illustrated here Installation 3 Version 1 36 02 2004 Attach labels 1 Unpack the machine Accessory case containing Drip tray grille Top pad Carton carrier dotted line Dispenser upright Trough Bottom pad Coffee pot gt Outer carton 2 Attach the language specific operation panel cover and the various labels removable
48. es a removable 3 litres 101 5 fl oz cold water tank or a fixed water connection The water level inside the cold water tank is detected by means of a small floater in a small chamber on the bottom of the tank that actuates a magneto electrical sensor when there is no water left in the tank A spring operated valve closes automatically when the water tank is lifted for filling or cleaning and opens when placed into position Water inlet system Water from the cold water tank flows to the boiler via the water inlet valve Water flows to the boiler by gravitation There is no pump in the system The inlet valve is opened 1 sec after a signal reaches the control board that the water level inside the boiler is low The inlet valve is closed 1 sec after the upper boiler water level is detected by the level sensor inside the boiler The inlet valve is closed when the machine is in the stand by mode or when no water is being detected in the cold water tank Version 1 36 Functions water 9 02 2004 The water system of machines with a fixed water connection does not include the water tank compo nents whereas the location of the inlet valve differs Top view Inlet valve Outlet trough Level sensor Drain hose Temperature b Sensor Overboil sensor Overview Water system components Fixed water connection Version 1 36 Functions water 10 02 2004 B The boiler Boiler level control T
49. essary 2 The operation unit PCB is Check the LED s service device and check the 4 4 defective the flat cable of flat cable 5K 3 the PCB is damaged or not correctly connected 3 Control PCB error Replace the control PCB if there is no machine function 5K 1 without apparent reason PL 2 Machine does not function Power LED is blinking Cause Action Ref 1 Safety circuit is activated The overboil protection clixon has been actuated Switch the machine to stand by unplug the power cord press the safety switch and switch the machine back on The trough is not detected Check presence of trough 5D and if necessary the reed sensor More than 0 5 litre 16 9 fl oz water has been supplied 5A 6 PL 3 while the machine was idle Check if water is dripping from the trough Replace the worn defective valve Machine does not function Power LED off no cooling fan operation Cause Action Ref 1 Power failure Check wall outlet for power power cord power supply PCB and the fuse on the PCB Faults 9 Version 1 36 02 2004 Version 1 36 02 2004 4 Programming mode A variety of settings can be changed or viewed by means of 1 the standard DECS service device or by means of 2 the operation panel buttons 4 1 Programming by means of the service device Procedure 1 Switch dispenser to stand by 2 Remove the left machine cover 3 Plug the service
50. ffee outlet Hot water outlet Fixed water connection only 15 Water inlet valve 16 Flow restrictor 17 Sieve REPLACE COFFEE PACK HOT WATER COFFEE REFILL WATERTANK e WARMING UP PLEASE WAIT O NOaRWN gt Coffee pack empty indication Cold water tank empty indication Boiler temperature low indication Hot water button in dispenser up to the 3 series Coffee cup button Coffee pot button Stop button Installation 10 Version 1 36 02 2004 2 5 Specifications System Capacity Chilled liquid concentrated coffee brewing 1 25 litres approx 42 3 fl oz Average number of cups 125 ml 4 oz at various ratios 10 No of cups Ratio No of cups 1 5 60 116 170 1 6 70 1 17 180 157 80 118 190 1 8 90 1 19 200 1 9 100 1 20 210 1 10 110 Zo 111 120 122 230 e io 1 23 240 113 140 124 250 1 14 150 1 25 260 115 160 1 26 270 Pack size Machine size Weight Noise level Power supply Power consumption Environment Temperature Humidity Cleaning time user Machine lifetime Cooling System Capacity Temperature Boiler System Capacity Temperature Cold water supply Dosing Accessories User operation Outlets Coffee Cup volume Time Pot volume Brewing Time Waiting time Installation 11 Ratio No of cups Ratio of cups 127 280 1 39 400 1 28 290 1 40 410 1 29 300 1 41 420 1 30 3
51. function implicates that water is leaking or clogged nozzle at the left side of the machine PL 3 Flat cable is damaged Check the flat cable remove right cover and 5K3 PL 6 or disconnected replace cable incl operation PCB if necessary The valves are Check the wiring and the connectors of the 5A 6 PL 3 incorrectly connected product valve s Control PCB failure If the machine pours only coffee concentrate without apparent reason the control PCB may be defective Check output voltages 5K 6 and replace if necessary 5K 1 PL 2 no hot water is poured when the hot water selection button is pressed PL Parts list Section 10 Cause Action Ref Outlet valve malfunction Connect service device and test product valve 4 4 blocked Check if water is flowing out of the trough Replace valve if necessary 5 6 PL 3 Outlet tube clogged not Remove left cover and check tubes and nozzle connected to the nozzle This malfunction implicates that water is leaking or clogged nozzle at the left side of the machine PL 3 Flat cable is damaged Check the flat cable remove right cover and 5K 3 PL 6 or disconnected replace cable incl operation PCB if necessary The valves are Check the wiring and the connectors of the incorrectly connected product valve 5A6 PL 3 Control PCB failure If the machine pours only coffee concentrate without apparent reason the control PCB may be defective Check output voltages 5
52. hange worn down Z 03 Exchange scale Z 04 Exchange dirty Z 05 Exchange scorched Z 06 Descaled 2 07 Cleaned Z 08 Mechanical adjustment Z 09 Electrical adjustment Z 10 Programming Z 11 Reset Z 12 Instruction Handle water tank Level sensor Part number boiler SIS code A11 Part number SIS code A22 Water tank Outlet valve coffee Part number 19495 Part number 18113 SIS code A12 SIS code A23 Glass water level Air vent Part number Part number SIS code A13 SIS code A24 Floater Outl valve hot water Part number Part number 18113 SIS code A14 SIS code A25 Outlet water tank Temperature Part number sensor SIS code A15 Part number 19158 SIS code A26 Sieve water tank Part number 3681 SIS code A16 Inlet water tank Overboil safety Part number 19494 Part number 19199 SIS code A17 SIS code A27 Level sensor tank Boiler Part number 19352 Part number 19481 SIS code A18 SIS code A28 Hose connectors Heating element Part number 18334 Part number SIS code A19 SIS code A29 Hose 90 degrees Outlet nozzle Part number 19483 Part number 19296 SIS code A20 SIS code A30 Inlet valve Part number 18113 SIS code A21 lt E A10 Other fault in water system general A17 Inlet water tank A24 Air vent A11 Handel water tank A18 Level sensor tank A25 Outlet valve hot water 7 A12 Watertank A19 connectors A26 Temperature sensor A13 Glass water level A20 Hoses 90 degrees angle A27 Overboil safety A14 Flo
53. he machine if it is severely tilted or shaken when it is being lifted or carried This risk can be avoided by waiting until the boiler inside the machine has cooled down recommended waiting time mentioned in the user manual is 3 hours When a machine with fixed water connection is relocated the water hose contain air When reconnected this air may enter the water system and cause malfunctions Basic machine operation amp ingredients HACCP hygiene and product storage Cleaning procedure and correct descaling procedure the water tank Indicators and corrective actions Quick reference label Delivery of products route seller Incorrect pack removal may result asnapped dosing tube and spilled coffee Please instruct the customer Do not pull Tilt and lift dosing tube may snap to remove Materials to be handed over to the customer User manual Brush for dosing coil cleaning Additional Quick reference card NSF version Installation 9 Version 1 36 02 2004 2 4 Dispenser description ONO OI ONS Cold water tank lid 9 Operation panel Cold water tank 10 Cooling compartment door Cold water level window 11 Cooling temperature high indication Main switch 12 Power on stand by indication Drip tray 13 Power inlet Cup grille 14 Opening for reset switch Co
54. he sensor is basically an electrode that connects to GND the water level The presence of water is checked by sending a pulse of 50 ms every second When the water level drops the sensor does not connect to GND no pulses return and a signal is sent to the main board T gt 1 sec In turn the main board sends a signal to the inlet valve and water is supplied lowlevel Boiler temperature control The heater switches on when the temperature drops more than 2 C 3 6 F under the set temperature 2 C 3 6 F The boiler temperature can be adjusted by means of the service device between 83 96 C 205 F The default boiler temperature is 92 C 198 F Water is heated by a heating element located at the bottom of the boiler and is activated by a signal from the temperature sensor The power is supplied directly from the AC input voltage circuit and Switched by a relay Overheating prevention If the temperature sensor detects a temperature exceeding the set boiler temperature by 4 C 7 2 F the heating element is switched off by means of a relay The temperature sensor is an NTC type sensor The resistance of the sensor decreases when the water temperature increases The resistance is continuously measured and the resulting data is proc essed to control the heating element 100 212 Normal Normal t temperature C F resistance Ohm 2 50
55. hed to the inlet valve Place the hose upright during the process Unplug the power cord Remove the lid of the tank 1 Torx 15 screw Remove the silicon water hose from the valve Remove the wiring from the valve 2 connectors Remove the valve 2 Torx 15 screws Disassemble in reverse order Ensure that the correct flow restrictor is used the sealing ring of the external water supply hose is placed correctly air is allowed to escape from the external water supply hose Version 1 36 Functions water 8 02 2004 2 Functional description A Water system outline The water system of machines with a removable water tank consists of several elements the water tank the water inlet system the boiler and water dosing system Control PCB Water tank 200 int n PH d I 0 3l Overboil hose safety h Level sensor A 2 Outlet valves Water empty detection Trough Boiler 1 81 PET Magnet for through NTC sensor detection iN 0 Inlet valve Thermistor Overview Water system components Removable water tank Water tank The dispenser featur
56. iring see the illustration for recognition of the connector Reassemble the machine in reverse order Peltier element replacement Unplug the power cord Remove the rear cover 2 screws Remove the fan 2 screws See above Remove the heat sink and the Peltier element retainer 2 retaining screws Do not disturb the torque screw without the proper tools Re installation requires utmost accuracy The Peltier element itself is situated behind the plastic inner cover in which the heat sink is installed Disconnect the wiring of the Peltier element red black see the illustration Peltier element Fan connector connector A Retaining Screws Bracket Plastic cover Torque screw Heat sink Retaining screw Ki Connector types Peltierelement Fan connector connector Functions Cooling 1 Version 1 36 02 2004 6 wiring 10 11 12 our Replace the element and connect the Connect the red wire at the left side and the black wire at the right side Apply conductive paste to both sides of the peltier element Make su
57. l produce an audible click Peltier test Measure the in output voltages over the related pins connectors When the Peltier element is activated a change of fan operation is audible The Peltier element will switch off for 3 seconds after it has been activated Valve test The rear outlet valve coffee should open for 1 second Place a cup under the coffee outlet Valve test The front outlet valve hot water should open for 1 second Place a cup under the hot water outlet Valve test The water inlet valve should open for 1 second When actuated the valve will produce an audible click A It is possible that too much water flows into the boiler due to repeated inlet valve testing This may result in overflowing Allow time to reset Version 1 36 02 2004 4 2 Programming the machine by means of the operation panel buttons Some basic delivery functions can be programmed by means of the operation panel buttons and the main power button without the need of a service device It is possible to start programming even when the boiler water temperature is low to save time Coffee pack and outlet trough must be present The following functions can be programmed Cup volume hot water Cup volume coffee Coffee strength ratio A To enter the programming mode Press and hold the stop and the power button for 3 seconds The operation panel LED indicators and the power will light up 3 times to indicate that the progra
58. m Minimum Maximum Steps Default Water flow rate ml sec 12 0 25 0 0 1 19 0 Ratio Coffee cup 5 99 1 22 Ratio Coffee pot 5 99 1 22 Boiler temperature 83 96 1 92 Boiler temperature lock Off On On Peltier too high error 10 00 Peltier too low error 1 00 Peltier temperature C 3 00 4 50 Cup volume ml 20 999 1 125 Cup control PC CF PC CF PC Cup price line 0 2 1 0 Pot volume ml 20 999 1 900 Pot disabled Off pot enabled Off On Off Pot price line 0 2 1 0 Hot water volume ml 20 500 1 125 Hot water control PC CF PC CF CF Hot water price line 0 2 1 0 Auto switch off in hours 0 9 4 Button programming by user Off On On Remarks portion control CF Continuous flow The service device utilizes metric units of measurement Conversions Volume ml divided by 29 57 fl oz e g 125 ml 125 29 57 4 2271 oz Temperature multiplied by 9 divided by 5 32 F e g 92 C 92 9 5 32 197 6 Programming 10 Version 1 36 02 2004 5A Water system 1 Disassembly and Adjustments A Boiler replacement 1 Unplug the power cord of the machine 2 Empty the boiler Remove the left cover take the drain hose and hold the end of the hose above the boiler Remove the plug of the drain hose Squeeze the hose to prevent that water flows out of the hose Lower the end of the hose above a suitable container boiler volume is 1 8 litres 60 9 fl oz
59. mming mode is activated The power LED will blink as long as the programming mode is active To cancel the programming mode Press the power button The power LED stops blinking and the machine is ready for delivery The mode will be automatically canceled if no button is pressed for 5 minutes time out B Coffee cup volume setting Place a cup under the coffee outlet Push the coffee cup button until the desired amount is dispensed in the cup Release the button Note that when you release the button the outlet valve closes some extra water will flow into the cup from the trough This quantity is directly stored in memory Repeat this sequence if necessary C Hot water cup volume setting Place a cup under the hot water outlet Push the hot water cup button until the desired amount is dispensed in the cup Release the button Note that when you release the button the outlet valve closes some extra water will flow into the cup from the trough This quantity is directly stored in memory Repeat this sequence if necessary D Coffee pot volume setting The volume of the coffee pot is default 0 9 litre 30 4 fl oz and can only be adjusted with the service device E Calibration coffee valve flow Place a 0 5 litre 16 9 fl oz measuring cup under the coffee outlet Push the pot button and keep it pressed until 0 5 litre 16 9 fl oz is dispensed Release the button The flow will be automatically calculated cc sec based on
60. ng is loose Check connections 5K 6 Irregular Faulty Coffee strength Cause Action Ref 1 Outlet valve malfunction Connect service device and test product valve 4 4 blocked Check if water is flowing out of the trough Replace valve if necessary 5A 6 PL 3 2 Boiler not filled quickly Water supply is irregular due to scaling of inlet valve enough scale inside hoses or clogged sieve Check dispensed water volume and check replace valve hoses 7 8 3 Tube between inlet valve Open left cover and check correct Always close left and boilers queezed cover carefully in order not to squeeze disconnect tube 4 Irregular coffee concentrate The coffee pack is not well defrosted Defrost dosing The concentrate quality is affected old Check expiry date replace coffee pack if necessary Coffee pack is not shaken before use Shake pack well 5 Inlet valve not calibrated Calibrate the inlet valve 5A 3 Faults 5 Version 1 36 02 2004 Water leakage rear side of the dispense area drip tray Cause Action Ref 1 Water from the inner cover Water is leaking from the inlet assembly water tank 5 7 5A 8 flows into the drip tray inlet valve fixed water connection and flows into the PL 2 inner cover Check replace defective won parts Check the opening in the upper rear corner of the dispense area for traces of scale Water leakage Machine right side
61. nous flow Cup volume hot water in ml Select Portion control or Continous flow for the coffee button cup according to the customer wish Cup volume coffee in ml Coffee strength setting See also page 7 of this chapter for more information about the ratio Programming 3 Version 1 36 02 2004 C Read Counters sub menu Enter the Read Counters sub menu to view the mentioned machine counters you can scroll through the various items with the up down keys It is only possible to reset the B2 error counter Select the counter with the mu key and press 0 followed by the ke Press Jo return to the main programming menu B2 errors are generated when the dosing pulse current of 5 2 A is not reached within 7 2 ms or if the pulse is shorter than 6 6 ms normal time is 6 8 ms If one or more B2 errors occur during 1 delivery cycle the counter value is increased by 1 The max counter value is 99 counter continues with 0 thereafter All settings different from the default settings are stored in an EEPROM on the control board D1010 Should replacement of the control board become necessary the EEPROM can simply be reinstalled onto the new control board and all machine settings and counters are restored Keep the EEPROM therefore with the machine Read counters sub menu structure READCOUNTERS 2 2 5 000 Max count 099 Reset possible CLR OTORESET k A k 4 TOTALLITRESOF HO
62. o out in Dosing coil Rd B2 coil H relay gt E Heater B2 current 4 en Lc e Blk Rd 8 Or x gt 82 empty detection D current ER Coffee empty Ye Le E sensor Bk Urz7 6V electronic 1 CN7 11V H Fan 52 zii T cooling O 24Vsup a Uref Cooling temp Bl ya i g Bik 2 sensor NTC D Cooling temp ij Peltier 1 rete lt Uref CN16 Boiler temp NTC 1 CNS 1 element sensor 3 Bl gt gt Boiler temp HIV O Rd a 5 Enable al Rd Boiler water saferty 19 75V Or level CN15 Se 2 104 row 4 Ye gt O level water 4 Hot water valve HIV Bn 24V ret 6 FO 24Vsup Gn 11V 4 6A Peltier element sengor Coffee zou En O 24Vret Coffee valve Peck a e Blk GND water 24Vsup EN sup O Ye 24V 1A Outputs Boiler Voltage 19 75Vsupo je 8 2 Bosco safety 63 CN10 meassuring 4x10K H 28 TERTII overboil BEN points T O safety SI Red 7 Magnet 5 P Trough 9 223 Cooling Ye Gn Ye Gn detection 9 ee Flatcable compartment 2 icd 7 Cooling A Power Diagram contenta sch DECS Int D Boereboom j kK Main switch Bn BI YI Gn N 100 V ac Swatch front panel CN9 UA Swatch side panel CNIO PA VI LED YELLOW LED RED LED GREEN coffee empty cold water empty boiler temperature low
63. of 4 C 7 F above the set temperature normally the relay will switch off the power supply Should the NTC sensor fail to detect a high temperature the power remains on the temperature increases and the bi metal is actuated The deformed bi metal plate presses against a small pin that in turn disconnnects the leads inside the connector and the heating element will be switched off The bi metal plate will restore its shape when the boiler temperature has dropped to normal There is furthermore a pin at the rear side the connector that functions as a second back up safety component In the remote case that the bi metal safety device fails to disconnect the heating element this plastic pin will melt When this occurs the leads inside the connector are disconnected by spring pressure The heating element should be discarded if this safety device has been actuated Version 1 36 Functions water 12 02 2004 3 Options The fixed water connection The fixed water connection kit can be installed to dispensers from the 2 series and newer serial number 0007001 and higher gt Ensure that the installation conditions are met before you install the fixed water connection refer to chapter 2 page 1 gt Always observe local regulation regarding plumbing gt Water pressure allowed Min 0 8 bar dynamic pressure Max 10 bar static pressure gt Attach the caution label included in the kit indicating these pressure values in clear
64. of the complete cooling compartment on both sides of the machine frame Version 1 36 Functions dosing 2 02 2004 10 Tiltthe complete cooling compartment a little towards you 11 Lift the complete cooling compartment assembly including the operation panel gentlyfrom the machine guide the wiring from the control PCB carefully through the opening in the frame to prevent damage to the wiring 12 Open the door of the cooling compartment and remove the retaining screws of the mount of the door Remove the door mount and the sealing screws e Door mount Retaining screws Insulating covers 13 Remove the left and right thermal insulation Dosing coil assembly Version 1 36 Functions dosing 3 02 2004 14 Remove the dosing coil assembly from the cooling compartment 4 screws Remarks The dosing coil assembly is available as a single spare part The sub parts are not separately available The dosing pump is an intregrated part of the coffee pack and can not be disassembled or adjusted It is a closed system to prevent that air can affect the quality of the coffee concentrate Functions dosing 4 Version 1 36 02 2004 2 Functional description The coffee concentrate is delivered in a 1 25 liter 42 3 fl oz bag in box It is a closed system with an intregrated dosing pump inside the tube The pump is
65. or hot water The front channel guides the water coming from the hot water valve to the hot water delivery spout whereas the rear channel guides water from the coffee valve to the coffee delivery outlet The latter guides the water through a circular area in which the water is mixed with incoming concentrated coffee dosed by the B2 dosing system The trough is equipped with a lid from serial no 0128XXXX to prevent that coffee in the trough can pollute surrounding machine parts Trough Following this change the outlets are positioned more to the front The position of the grid holes of the drip tray grid have been repositioned accordingly Hot water channel Coffee channel Mixing chamber Retaining magnet Magnet for trough detection oiov The presence of the trough is detected by means of a reed sensor If the trough is not placed the safety circuit is activated and all main functions except for cooling are blocked Cup grille Drip tray Trough Reed sensor Delivery area parts 1 2 3 4 Functions product delivery 1 Version 1 36 02 2004 Version 1 36 02 2004 5F Cooling system Disassembly Fan replacement Unplug the power cord Remove the rear cover two screws The fan is mounted on the heat sink Remove the 2 screws of the fan bracket Take the fan out remove the fan from its bracket 2 screws and disconnect the wiring of the fan red black w
66. r valve yellow wiring N Outlet hoses Retaining screws Version 1 36 Functions water 6 02 2004 G Disassembly of the water inlet valve not applicable for machines with a fixed water connection Unplug the power cord Remove the watertank Remove the left cover Empty the boiler and the water inlet hose of the boiler see page 1 Unplug the two connectors of the water inlet valve the inlet and outlet tube A Water in the inlet tube will flow out Squeeze the tube and use a container to collect this water Use a cloth to wipe off any remaining water drops Remove the inlet valve Assemble the machine in reverse order Inlet valve Water inlet tube H Disassembly of the cold water inlet assembly not applicable for machines with a fixed water connection 1 Remove the cold water tank 2 Remove the right cover 3 Press the inlet upwards to remove 4 Disconnect the tube through which water is flowing to the valve The inlet can now be replaced Press the inlet back into the frame and reassemble the cover and place the cold water tank back in place Cold water inlet assembly Version 1 36 Functions water 7 02 2004 Disassembly of the water inlet valve A Om FW Close the faucet and remove the external water supply hose water inside Pour half a cup of hot water in order to remove water from the silicon hose attac
67. rcuit boards in conductive sponge rubber or similar materials In case a fixed water connection is installed start from step 1 If no fixed water connection is installed unplug the power cord and proceed with step 6 1 Close the faucet and remove the external water supply hose water inside 1 Pour a cup of hot water 2 2 Unplug the power cord 3 3 Remove the tank lid 4 4 Disconnect the silicon water hose 5 as well as the wiring 6 from the inlet valve 5 Remove the retaining screw of the tank 7 and lift the tank from the machine Guide wiring and hose upright trough the opening in the tank 8 6 Remove the right cover and the water tank About removing the right cover Remove the screw at the rear side Lift the cover about 12 cm 4 Disconnect the flat cable of the On Stand by Switch on the control PCB lower left corner Lift the cover from the machine Right cover Functions Machine control 1 Version 1 36 02 2004 7 Unplug the connectors from the control board There is no specific order of disconnecting 8 Loosen the screws 2 of the retaining rails remove the rails and take the board out The settings of the machine are stored in the EEPROM When you install a new control PCB you may want to use the EEPROM from the board that was installed in the machine and mount it on the new control board Align the notch of the EEPROM micro proce
68. re that the surfaces of the element are clean and free of any particles Put the peltier element back in place black wire right side red wire left Put the heat sink and the retainer back in place Make sure that the Peltier element is correctly positioned and the wiring and the element itself are not squeezed Fasten the both retaining screws of the peltier element retainer Fasten the screw in the middle peltier element retainer with a torque wrench 140 Reinstall the fan the rear cover and reconnect the power cord NTC element replacement Unplug the power cord Remove the rear cover 2 screws Put the connectors in the lower left corner aside The sensor support wiring of the NTC sensor can now be reached Pull the NTC sensor out Do not apply force Disconnect the connector blue wiring Reassemble the machine in reverse order Push the NTC sensor back in as far as possible Functions Cooling 2 Insulating seal Peltier element Heat sink Peltier element retainer Torque screw Plastic cover AAN ee I Sensor E un support Le Peer T 7 Pal Wiring blue ZEE J gt Wiring O NTC sensor Sensor Sensor support Version 1 36 02 2004 D Disassembly of the complete cooling unit The cooling compartment must be disassembled to reach the dosing coil see also 5C or in case the cooling comp
69. rsons or damage to product In addition the following symbols have been added throughout the service manual to emphasize safety measures related to a specific action o Pay particular attention to the remark preceeded by this symbol N Risk of contact with very hot liquids or objects Introduction amp Safety 2 Version 1 36 02 2004 OPERATION WARNING CAUTION CAUTION CAUTION CAUTION CAUTION CAUTION CAUTION CAUTION Do not use the machine for other than the intended use The machine is intended for in door operation only Please do not place the machine too close to a sink wet or cooking device hot The liquids delivered by the dispenser are hot Keep hands and body parts clear from the delivery area while the dispenser is producing coffee or hot water Keep children away from the machine If the dispenser is not used for a longer period of time e g at night or during the week end set the ON Stand by button to Stand by The power source should not be interrupted completely because the cooling system will not function Close the water tap if a fixed water connection is installed Connect to a source of filtered drinking water and or use filtered drinking water to the water tank Particularly at locations with poor water quality filtered water is highly recommended or may even be required Observe the indicated water pressure when a fixed water connection is installed Do not s
70. s is depending on the type of filter used Refer to the o manufacturer instructions 4 Connect the water filter inlet hose to the water stop valve 5 5 Connect the flexible water hose to the water filter T 6 Open the faucet to fill the water filter and the hoses T Loosen the connection between the flexible hose and the inlet valve a little to allow air to escape from the Tz hose Reconnect firmly afterwards pz 2 x 19 Installation 5 Version 1 36 02 2004 Connect the power cord 92 2 gt Kei E 2 5 gt gt des Switch the machine 4 Connect the power cord The microprocessor will be initialized This takes up to 30 seconds During initialization all LED s light on 5 e Install cup grille drip tray and trough Press the on stand by button as illustrated to switch the machine on The boiler is probably empty when the machine is switched on for the first time the heating element remains therefore off until the boiler has been filled with water The indicator LED Please wait warming up boiler temperature low indication lights on and will thereafter remain on until the operational temperature has been reached This will take approx 8 minutes for 220 V or up to 20 minutes for 110 120 V machines om Installation 6 Version 1 36 02 2004 T Install the 1 25 42 3 fl o
71. sed 5V Not pressed Cup of coffee switch 0V Pressed 5V Not pressed Hot water switch OV Pressed 5V Not pressed Boiler coiler cold LED OV Off 4V On Water empty LED OV Off 4V On Coffee empty LED OV Off 4V On Main switch 0V Pressed 5V Not pressed GND Cooling LED OV Off 4V On Main power LED OV Off 4V On GND Shield GND Shield Version 1 36 02 2004 Connector pin Voltage Remarks 11 1 0 5V Cold water empty detection 0V Water 5V No water 11 2 GND Cold water empty detection GND 11 3 24V Cold water valve power supply 11 4 0 24 Cold water valve return OV On 24V off 11 5 GND Not connected 11 6 GND Not connected 11 7 GND Not connected 12 1 Not connected 12 2 Not connected 12 3 Not connected 12 4 Not connected 12 5 Not connected 12 6 Serial out service device 12 7 GND 12 8 Not connected 12 9 Serial in service device 13 1 19 75V Dosing coil power supply 14 1 Dosing coil return 15 1 0 11V Peltier element 0 V On 11 V Off 16 1 0 11V Peltier element return On 11 V Off 17 1 5V Power supply 17 2 Dataline coin mechanism 17 3 Clockline coin mechanism 17 4 GND 18 1 OV B2 Current 18 2 1 15 V B2 Current 18 3 0 5V B2 coil control Off 0V On 5V Not connected when the connector of the fixed water connection is plugged in Functions Machine control 7 Version 1 36 02 2004 Version 1 36 02 2004 5 Electrical Diagrams Contents
72. sor reduces when the temperature rises and vice versa The resistance generated by the sensor is constantly measured and used for the on off control of the peltier element current The effective input range is 17000 9000 Ohm 1 C 12 C 33 8 53 6 F Resistance measurement 50 122 Normal Normal O 40 104 temperature resistance Ohm 2 e 10 14 27667 30 86 6 21 2 21156 8 0 32 16322 5 41 12690 eS 10 50 9946 2 15 59 7851 10 50 20 68 6243 e 25 77 4998 5 30 86 4027 0 32 35 95 3265 i 10 14 0 5000 10000 15000 20000 25000 30000 Temperature sensor resistance in Ohm Functions Cooling 5 Version 1 36 02 2004 5G Housing There are no complicated disassembly procedures or adjustments regarding covers and frames This chapter consists therefore of a brief overview Overview of machine covers I UN Housing and related parts 1 Left cover 6 Door cover 2 Rear cover T Right cover 3 Top cover 8 Inner cover 4 Hinge door 9 Rear machine support 5 Door assembly Dispenser functions Housing 1 Version 1 36 02 2004 5K Machine control 1 Disassembly A Control board replacement o Beware of static electricity It could cause serious damage to the EPROM or the printed circuit board and its components Store ci
73. ssor with the notch in the Socket of the PCB Do not replace the EEPROM without the proper tools or training Incorrect handling will cause instant damage to the electrical components Install the new board back into the machine and connect the various connectors 10 Reassemble the machine and program the machine if a new board with new EEPROM is installed CN17 reserved for payment systems CN18 reserved for measurement purposes only CN9 CN12 Retaining rail To machine SS left side N S el Aa gt EN Es V CN14 CN8 ve y TP CN13 CIC Power supply PCB e QN EEPROM Peltier element wiring Voltage measuring points see page 5 m Power check LED cC this indicates that the 5V power is supplied to the board AL Ferrite core present in 100V 50 60 Hz machine version Japan Functions Machine control 2 Version 1 36 02 2004 6 7 8 9 1 C Power supply board replacement This procedure is largely similar to control board replacement Please refer for details to that procedure In case a fixed water connection is installed start from step 1 If no fixed water connection is installed unplug the power cord and proceed with step 6 Close the faucet and remove the external water supply hose water inside
74. t cycle will be interrupted until the correct boiler temperature has been reached However the cycle is completed if more than 7496 of the set volume has already been dispensed The boiler will not heat up if the trough is not present Boiler temperature correct normal status Boiler related malfunction The security relay will switch the machine off Cooling function remains operational 1 The heater remains on for more than 15 min and or the temperature exceeds the by 4 C 39 F 2 More than 500 ml 16 9 oz water has been supplied in the stand by mode the counter is reset when coffee or hot water is being dispensed The Boiler temperature low LED and the Cold water empty LED will blink alternately The power LED is off 3 Cooling LED On Off Blinking Cooling compartment temperature too high The LED lights on when the cooling compartment temperature gt 10 C 50 F and switches off when the temperature drops under 9 C 48 F Correct cooling compartment temperature normal status Cooling compartment related malfunction The LED starts blinking in case the temperature drops under 1 C 34 F or remains higher than 10 C 50 F for more than 3 hours Faults 2 Version 1 36 02 2004 4 Cold water empty LED On Off Blinking The magneto electrical sensor detects no water for longer than 1 second if detected during dispensing a cup cycle is ended a pot cycle is interrupted This is not applica
75. ted See chapter 4 page 1 for connection of the service device Message Condition Measure Heater switched on toolong The heater remained on for more than 840 seconds Boiler temp too high The set boiler temperature is exceeded by more than 4 C 39 F Boiler level low too long Boiler low level detected for more than 25 sec or 120 sec after the dispenser is switched on water tank is not empty Cooling temp too long high Cooling compartment temperature exceeds 10 C 50 F for more than 3 hours Cooling temp too low Cooling compartment temperature dropped under 1 C 34 F Eeprom broken or not build in Data cannot be retrieved default settings will be used instead Eeprom re programmed Data cannot be retrieved immediately but within 3 attempts retry on error Inlet valve too often open More than 500 ml16 9 fl oz water was supplied in the stand by mode Bad dosing B2 pulse lt 6 6 ms or gt 7 2 ms Safety device in the element connector has been activated Check the heating element and relay Check replace the NTC sensor Check the relay Check replace sieve inlet valve and check if a tube is bent squeezed or partly disconnected Check replace the coffee pack it may have been far too warm Check replace the NTC sensor Peltier element and cooling fan Check replace the coffee pack it may still be frozen Check replace the NTC sensor Check replace Eeprom see note on pages of section 5K Check replace
76. the bellows via the inlet valve that has been opened by the pressure difference atmospheric pressure low pressure inside the bellows as its shape is restored 1 System at rest 2 Dosing coffee 8 Refilling atmospheric concentrate pressure v s Bellows Tappet ring Bellows Tappet lifted Upper valve opens is filled with coffee pulled down compressed by bellows due to pressure concentrate by coil pressure opens difference low valve pressure bellows bellows refills Coffee empty detection The dosing coil assembly features an optical infra red sensor consisting of a transmitter and a re ceiver An IR beam is continuously directed through a transparent part of the dosing tube and as long there is coffee inside the pack a black floater blocks the beam When the coffee inside the pack has been consumed a black floater inside the tube drops and does not any longer block the beam of the transmitter The receiver will thereupon send a signal to the main PCB Version 1 36 Functions dosing 6 02 2004 5D Product delivery There are no complicated disassembly procedures or adjustments regarding product delivery system This chapter consists therefore of a brief overview Overview product delivery parts The product delivery area consists of just the trough and the drip tray with the grille on which the cups mugs or pot can be placed Inside the trough there are two separate channels to deliver coffee
77. the inlet valve Check replace the coffee pack Machine status error indications 3 Boiler temperature low LED blink in case of an malfunction 9 D REPLACE COFFEE PACK HOT WATER COFFEE 2 REFILL WATER TANK VY WARMING UP PLEASE WAIT Q e 1 Coffee empty LED 4 Cooling temperature LED 2 Water tank empty LED 5 PowerLED Remark concerning Water tank Empty LED If the fixed water connection is installed this indicator does not refer to the water tank but to an interrupted water supply to the boiler It will Faults 1 Version 1 36 02 2004 1 Power LED On Off Blinking Machine is switched on Power off only the cooling control is operational 1 The machine is in the user programming mode 2 No 24 VDC circuit 3 The trough is not present 4 The safety circuit has been triggered The machine will be switched off Reset the machine by pressing the reset switch on the thermistor overflow tube located atthe machine rear side Press the on stand by button thereafter 5 Errordetected 2 Boiler temperature low LED On Off Blinking Boiler temperature too low Temperature less than 70 C 158 F The LED switches off at T 4 C 39 F Itis possible to block the delivery at a low boiler temperature 70 C 158 F by means of the Service device see also chapter 4 2 H the temperature becomes too low during delivery of a cup the cycle is completed A po
78. tore the machine at locations with a surrounding temperature below 0 C 34 F Please note that the driptray capacity is limited to 250 ml 13 5 fl oz 1 2 cups Please empty the driptray in case coffee or water has been delivered while no cup or pot was present The customer should clean the machine on a daily and weekly basis as described in the user manual and instruction label for hygienic and functional reasons Always observe basic hygiene and use only food grade cleaning agents Clean the machine parts with a clean damp cloth Do not spray the dispenser off Please allow the internal boiler to cool off before you do relocate or move the dispenser recommended waiting time is 3 hours Always keep the dispenser upright when moving ELECTRICITY DANGER DANGER DANGER WARNING WARNING WARNING WARNING Never plug a power cord into a wall outlet or unplug a power cord when either part is wet or either part is touched with wet hands Safety devices must not be bypassed or put out of action Do not operate any appliance with a damaged power cord or plug The dispenser must be connected to drinking water supply and to electric power supply in accordance with local regulations The dispenser must be connected to a properly fused electric circuit When the machine has been relocated please make sure that the machine does not overload the capacity of the electrical circuit when plugged in at the new location Observ
79. ure becomes too high 2 A plastic pin that will melt to disconnect the power supply to the heating element in case the bi metal does not function properly back up safety The heating element or the boiler should be discarded if this safety device has been actuated To remove the heating element from the boiler 1 Remove the boiler lid 4 screws 2 Remove the retaining screws of the heating element 3 Take the heating element out of the boiler A The heating element itself can be very hot Be careful and take proper measures when handling 4 Reassemble in reverse order Make sure that the sealing ring between boiler and the heating element is correctly placed when the heating element is being installed Apply heat conductive paste when assembling Heating element Bi metal Sealing ring connector rear side Heating element connector Melting pin inserted in the connector Retaining screws Version 1 36 Functions water 4 02 2004 D Temperature sensor replacement 1 Unplug the power cord of the machine Remove the left cover Empty the boiler see page 1 for details Pull out the temperature sensor Disconnect the wiring of the sensor Assemble the machine in reverse order Make sure that the sealing ring is not worn out damaged and correctly positioned Sealing ring Sensor e 7 N Sensor wiring Thee red E Level sensor replac
80. you Lift the complete cooling compartment assembly including the operation panel gentlyfrom the machine guide the wiring from the control PCB carefully through the opening in the frame to prevent damage to the wiring Open the door of the cooling compartment and remove the retaining screws of the mount of the door ge Door mount Retaining screws Functions Cooling 4 Version 1 36 02 2004 2 Functional description General The cooling system is designed to maintain a constant temperature of 2 5 C 35 6 41 F inside the cooling compartment The machine features a thermo electric cooling system The low temperature is generated by a Peltier element that is actuated between 3 5 38 3 F and 4 5 40 1 The peltier element is basically a series of thermo electric cooling cells consisting of 2 bismuth semi conductive bridges The bridges are made of tellurium with different surface layers An electric current is applied to create the heat transfer A sealing is applied to the contact surfaces of the peltier element to prevent that the condensated water would cause corrosion The heat from the interior of the cooling compartment is transferred by the peltier element onto an alluminium heat sink and removed by a cooling fan The fan remains on in the stand by mode Temperature control The temperature inside the cooling compartment is detected by an NTC sensor The resistance in the sen
81. z coffee pack chilled Check the expiration date Shake the coffee pack at least 10 times Verify that the coffee is completely thawed properly chilled Open pack and unfold dosing tube Place the coffee pack in the cooling compartment and close the door x 65 9 n KA E 8 Dispense a sufficient amount of coffee and hot water to rinse the water system It is recommended to pour no less than 8 cups of hot water and 8 cups or 1 pot of coffee 2 This step eliminates the possibility of off taste and ensures the best water quality gt In case the machine has been over a long period 6 months or a for coffee it is recommended to dispense 2 times a double pot from the 3 machine after installation 2 b for tea it is advisable dispense once more 2 pots of hot water the next c morning D 9 Calibrate the machine set cup volumes and coffee strength Programming can be done by means of buttons or the service device See also chapter 4 for additional information 1 Entering the programming mode Push the stop and power button simulteanously for 3 seconds The LED s on the operation panel will flash 3 times to indicate that the programming mode has been entered During the programming mode the power on LED will blink continuously Program the machine Installation 7 Version 1 36 02 2004

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