Marco Beverage Systems Ltd
Contents
1. marco POURING PERFECTION EcoSmart boiler SERVICE MANUAL marco Marco Beverage Systems Ltd Ireland Tel 01 295 2674 63d Heather Road Ireland Fax 01 295 3715 oandyford Industrial Estate Dublin 18 UK Tel 0207 274 4577 Republic of Ireland UK Fax 0207 978 8141 5 1 INTRODUCTION 3 2 SAFETY INSTRUCTIONS 4 3 BASIC INSTRUCTIONS 4 3 1 Installation Details 4 3 2 Troubleshooting 5 Maintenance 6 3 4 Cleaning 6 3 0 Limescale 6 3 6 Cautions and Safety Tips 6 4 TECHNICAL DATA 7 4 1 General Description 7 4 2 External Arrangement 7 4 3 Access to internal components 8 4 4 Internal Arrangement 10 4 5 PCBs 11 4 5 1 PCB EcoSlave 1600354 11 4 5 2 PCB EcoSmart Display 1600357 12 4 5 3 PCB EcoSmart Display Label Requirements 1000677 100678 12 4 6 Troubleshooting Diagnostic guide 13 4 7 Tank Components 15 4 8 Descaling procedure 16 4 9 Wiring Diagram 1000677 EcoSmart PB10 17 4 10 Wiring Diagram 1000678 EcoSmart HiDeck 18 4 11 Spare Parts List 19 Service Manual 1000677 EcoSmart PB10 1000678 EcoSmart hiDeck 221110 doc Page 2 of 19 1 INTRODUCTION The information provided in this manual is intended to assist in the installation and maintenance of the Marco EcoSmart Boiler Please read the instructions carefully to prevent accidents and ensure an efficient installation This manual is not a substitute for any safety instructions or technical data affixed to the machi2. B n 686006 A0 Z 8 z lt wo Be INaWI13 Sm EC F3 Se Sm a 29 22 2 E a LN diis 5 1690091 uuuggz 97 IME 6170 3LIHWMOVT18 9 03 18 uuugos 6 0 uuugge 6 0 MOTISA HOLIMS JTLOWL N NOILYYSITY9 0 0 13701 iD ENS 0 90 did S31VOICNI 3uvnos xov18 067 7 LSE0091 ANOOITIS SLIHM 318VO NOSAIY AVM 91 Page 18 of 19 Service Manual 1000677 EcoSmart PB10 1000678 EcoSmart hiDeck 221110 doc 4 13 Spare Parts List Part Description Model Variant Number 1000677 1000678 X 1600357 P C B Ecosmart Display 1600357K PCB 357 Spares Kit Gasket Outer Ecoboiler Urn Cleanser 800g Tub 1401874 opacer Nylon 3 1x8x5mm qty 4 machine MARCO is an 1509001 2000 Registered Company Service Manual 1000677 EcoSmart PB10 1000678 EcoSmart hiDeck 221110 doc Page 19 of 19
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4. sensor failure s c Call service agent Check water pressure If OK switch machine off Machine not filling and on again If problem reoccurs call service agent Note Some of the error sequences will be displayed if there is low water pressure Please check that there is water pressure and that the water stop valve is open before calling your service agent For a more detailed description of error indicators and corrective actions see section 4 7 of this manual Service Manual 1000677 EcoSmart PB10 1000678 EcoSmart hiDeck 221110 doc Page 5 of 19 3 3 MAINTENANCE Marco machines have been designed to give many years of trouble free service Marco Beverage systems manufacture and test to 509002 2000 standard The only regular maintenance required is occasional de scaling Descaling Procedure Isolate machine from power supply Isolate machine from water supply ALLOW TO COOL COMPLETELY Drain water from machine Remove all lids Hemove as much scale as possible by hand paying particular attention to level probes White plastic with steel tab Be very careful not to damage any attachments Use ScaleKleen Marco part No 8000270 or similar Follow instructions carefully Thoroughly clean and flush the machine before re use Follow installation and first time operation instructions 3 4 CLEANING The exterior of these machines may be cleaned with a damp cloth and a light detergent Do not use abrasive cloths or cr
5. the low probe check the probe circuit wiring 3 FLASH CYCLE THERMISTOR SHORT CIRCUIT Display pattern e 3 flashes then a short pause repeated Electronic check e This indicates that the Thermistor is measuring zero resistance It assumes the thermistor has failed sort circuit he element and inlet valve are turned OFF when this error is detected e This is a recoverable error When the correct range of resistance is measured normal operation resumes Probable causes 1 The thermistor has failed Action required 1 Replace the thermistor 4 FLASH CYCLE NOT HEATING Display pattern 4flashes then a short pause repeated Electronic check e his checks that the temperature is increasing when the heater is on e Measures the rate that the temperature increases in a specified time This error is only displayed after 20 mins of the heater being on continuously When the error is detected the element and inlet valve are turned off Service Manual 1000677 EcoSmart PB10 1000678 EcoSmart hiDeck 221110 doc Page 13 of 19 This is a non recoverable error The machine needs to be reset when this problem is solved Probable causes 1 The elements have failed 2 Wiring fault Action required Check that the resistance on the elements If there is a reasonable resistance 15 25Q on the 1 element it probably has not failed so the wiring might be at fault 5 FLASH CYCLE THERMISTOR OPEN CIRCUIT Display pattern 5 f
6. Deck 221110 doc 4 7 Tank Components The tank internals are detailed below Care should be taken when cleaning inside the tank The level probes provide much of the control inputs into the PCB and are critical to the operation of the machine The wiring to these should be checked regularly and the probes themselves should be cleaned whenever the machine is serviced There are 3 level probes on the machine Only the low level probe is visible in the picutre Tank Gasket Outlet Probe Assembly 2300463 low position Thermistor Pocket ensure that this is not touching the element Element 1500985 Water inlet See stand pipe below 2300785 Ecosmart inlet stand pipe 3 8 OD Note orientation Service Manual 1000677 EcoSmart PB10 1000678 EcoSmart hiDeck 221110 doc Page 15 of 19 4 8 Descaling Procedure To descale the machine thouroughly e Unplug the machine e Disconnect from the water supply e Drain as much water from the tank as possible e Remove the lids and allow the machine to cool completely e Drain all the water from the machine e Attempt to remove as much scale as possible by hand e Reconnect machine and start up once again e Adda descale solution follow instructions as given Flush the machine thouroughly before use Service Manual 1000677 EcoSmart PB10 1000678 EcoSmart hiDeck 221110 doc Page 16 of 19 T m o N
7. VIDE INFORMATION 1 FLASH CYCLE LOW LEVEL PROBE DISCONNECTED Display pattern e 1 flash then a short pause repeated Check and Action e Check the wiring to the Low Level probe and the Probe inside the tank e Check probe connection to the lower PCB 2 FLASH CYCLE BELOW LOW LEVEL Display pattern e 2 flashes then a short pause repeated Electronic check and action e his indicates that the low level circuit is open i e the probe is not in contact with the water e The element is switched OFF at this stage and the inlet is left ON note that if this is a low probe wiring fault the water will stop at the high level probe regardless of the status of the low level e This is a recoverable error i e the machine does not need to be reset when the problem is solved e g if a closed mains water stop valve is the problem opening the valve will allow water into the machine and normal function will resume when the low level probe is reached Probable causes 1 The water level is below the low level probe which is normal when the machine fills for the first time Can be flashing for up to 2 min at start up 2 The low level probe wire is disconnected or there is another wiring fault eg a bad earth return connection between the PCB and the Tank Action required 1 Check that the water pressure is OK and ensure that the stop valve is open 2 Check that the inlet solenoid is working 3 Ifthe water level is above the level of
8. cording to the manufacturer s instructions may result in conditions that can cause injury or damage to property If in any doubt about the serviceability of the boiler always contact the manufacturer or your own supplier for advice Service Manual 1000677 EcoSmart PB10 1000678 EcoSmart hiDeck 221110 doc Page 6 of 19 4 Technical Data 4 1 GENERAL DESCRIPTION TTS PB10 1000677 and 1000678 Dimensions A ee uu mm 590 675 Width mm 210 Depth counter footprint mm 360 Depth incl Drip Tray mm 460 Height Dispense to Drip tray mm Performance Immediate Draw Off litres 10 Max Output litres hour 38 flex and moulded plug fused BS1363 Fittings 0 75 BSP Pressure Food grade inlet hose supplied 5 50 psi 35 345 kPa 4 2 EXTERNAL ARRANGEMENT Surround Panel Fascia Front S S lacquer Eco Smart Front Panel Middle Plastic Push Button Front Panel Bottom Service Manual 1000677 EcoSmart PB10 1000678 EcoSmart hiDeck 221110 doc Page 7 of 19 4 3 ACCESS TO INTERNAL COMPONENTS To access the tank Ensure that the tank is cool before removing inner lid To remove inner lid undo 4 butterfly nuts Ball Stud opring Clip locations Service Manual 1000677 EcoSmart PB10 1000678 EcoSmart hiDeck 221110 doc Page 8 of 19 e Disconnect the machine from the electrical supply e Allow to cool sufficiently e The metal Front Fascia Top and Bottom panels are fixed to the surround w
9. eams as this will spoil the finish of the machine Do not use a water jet or spray Beware of accidentally operating the draw off tap or push button when cleaning the front of the machine 3 5 LIMESCALE In common with all water boiler manufacturers service calls resulting from limescale are not covered by warranty Fitting a scale reducer is recommended especially in hard water areas This can reduce the build up of scale but may not stop it altogether The frequency that descaling is required depends on the local water supply hard water areas need more attention A scale reducer can reduce the build up of scaling but may not stop it altogether Descaling of the machine should ideally be carried out by qualified service personnel 3 6 CAUTIONS AND SAFETY TIPS e This appliance must be earthed If the moulded plug supplied is not used then ensure that the green yellow cable is connected to a suitable earth e Risk of flooding The hose supplied with this unit is non toxic food quality tested to 190psi However a hose is not a permanent connection It is therefore advisable to switch off boiler and close the stopcock valve when boiler is not in use e g overnight weekends etc e Risk of scalding Beware of accidentally operating the water drawoff tap especially when cleaning the front of the boiler e The utmost care has been taken in the manufacture and testing of this unit Failure to install maintain and or operate this boiler ac
10. ith ball studs that lock into spring clips mounted in the surround panel refer to picture above e To separate the ball studs from the spring clips insert a flat headed screwdriver at the locations indicated on the picture and lever apart the front panels from the surround e o remove the Front Fascia Top panel after seperating the ball stud from the spring clip rotate the top edge of the panel forward and pull the panel in an upwards motion e Place the panel to the side of the machine e To remove the Front Fascia Bottom after seperating the ball stud from the spring clip rotate the bottom edge of panel forwards and pull in a downward motion This panel is now free to be placed out of the way e This allows access to most of the internal components and the machine does not need to be drained for most maintenance or service operations e lf further access is required the plastic Front Fascia Middle panel should be removed by unscrewing the four cross recessed pan headed screws e The Tank can be drained by removing the plug from the end of the drain hose and draining into an external drain or a large enough container Inlet Solenoid Access e access the inlet solenoid the PCB and PCB bracket need to be removed e Unscrew the two cross recessed pan headed screws holding the bracket in place Service Manual 1000677 EcoSmart PB10 1000678 EcoSmart hiDeck 221110 doc Page 9 of 19 4 4 INTERNAL ARRANGEMENT High Level P
11. lashes then a short pause repeated This indicates that the Thermistor is measuring such a large resistance that it assumes Electronic check the thermistor circuit is open The element and inlet valve are turned OFF when this error is detected This is a recoverable error When the correct range of resistance is measured normal operation resumes Probable causes 2 he thermistor probe is unplugged from the 4way connector on the PCB or the thermistor has failed open circuit Action required 2 Check that the thermistor is plugged in to the PCB correctly If it is replace the thermistor 6 FLASH CYCLE NOT FILLING Display pattern 6 flashes then a short pause repeated Electronic check This checks that the water in the tank cools when the inlet solenoid valve is switched on Indicating that water is entering the tank Probable causes Mains water pressure problem or the mains water stop valve is closed 1 Inlet solenoid valve failure 2 Action required 1 Check the mains water supply Note Temporary loss of water pressure can occur in certain sites particularly when various machines are plumbed to the same mains water supply NOTE If the water supply is the problem ensure that this is rectified or this error will re Occur If there is no problem with the mains water supply check that the inlet solenoid valve is 2 working Page 14 of 19 Service Manual 1000677 EcoSmart PB10 1000678 EcoSmart hi
12. ll cycle continues until the boiler is full e While filling the Ready Status light will remain blank e The Ready Status light will glow green when the machine is both full and up to normal operating temperature For 10L machines allow approx 30 minutes e The boiler is now ready for use the display will show the Water Temperature and the status READY e Boiler may now be used to dispense Hot Water to the preset factory settings 94 o Push and Hold operation o Continuous flow no pulsing o Auto heat Fill Mode Service Manual 1000677 EcoSmart PB10 1000678 EcoSmart hiDeck 221110 doc Page 4 of 19 marcos e0 0 c FILLING Button eco mode EcoMode Button Figure 1 Machine User Interface NOTE Because the boiler is electronically controlled no priming is necessary The element cannot switch on until a safe level of water is reached PLEASE REFER TO INSTRUCTION BOOKLET FOR TEMPERATURE CALIBRATION 3 2 TROUBLESHOOTING The Ready Status light signals various errors or problems A cycle of red flashes indicates an error The number of flashes in a cycle corresponds to the symptom in the table below Status Diagnostic light guide No of flashes Symptom Action required Water level below elements Normal Check water pressure if this is OK then call when machine first fills service agent Temperature sensor failure Call service agent Water not heating Call service agent Temperature
13. ne or its packaging All information in this manual is current at the time of publication and is subject to change without notice Only technicians or service providers authorised by Marco should carry out installation and maintenance of these machines Marco accepts no responsibility for any damage or injury caused by incorrect or unreasonable installation and operation 2 SAFETY INSTRUCTIONS e Read all instructions e To protect against electric shock do not immerse mains cord in water or other liquid e prevent chafing of the cable do not let the mains cord hang over the edge of a table or counter or touch hot surfaces e Do not operate any appliance with a damaged cord plugs or after the appliance malfunctions or has been damaged in any manner e Switch off at the mains unplug or disconnect from outlet and turn off the water supply when not in use and before cleaning Allow to cool before removing components e The use of spares and accessories not recommended by Marco may cause damage and or injuries e Do not use outdoors Do not place on or near a hot gas or electric burner e Do not use the appliance for anything other than its intended use e Save these instructions Service Manual 1000677 EcoSmart PB10 1000678 EcoSmart hiDeck 221110 doc Page 3 of 19 3 BASIC INSTRUCTIONS 3 1 INSTALLATION DETAILS Electrical installation e Electrical specification 2 8kW 230V 50Hz e moulded 13A plug i
14. robe Assembly 2300463 Mid Level Probe Assemblv 2300463 Dispense Solenoid 1502156 Low Level Probe Assembly 2300463 Boil Dry Thermal Cutout Switch Element 2 8kW 230V 1500985 Ei T T 2 B J 3 a IE L 9 EE O 0 n1 At b aAaeeDOOS LG L A AAAA A AAAG amp GLE CAR ee NAAA A I O P C B Eco Slave 1600354 Valve Inlet Solenoid 240V 2L min 1502191 Service Manual 1000677 EcoSmart PB10 1000678 EcoSmart hiDeck 221110 doc Page 10 of 19 4 5 PCBs 1 PCB Eco Slave 1600354 8 E 7 Ni 4 16 B 1 17 COMPONENTS OF PCB ECO SLAVE Dispense Solenoid Tab Inlet Solenoid Tab Neutral Tabs Transformer Mains Live In Tab Relays Heater e Switch the element Heater Tab On Off 2 way Connector e Short circuited on this EcoSmart machines power switch controlled through the display PCB 9 LED 5 way Connector 10 Earth Tab 11 Daughter PCB Connector low voltage e Connects to Daughter PCBs allows switching of more than one element 12 Ribbon connector to Front Panel Display 13 Thermistor Connector 14 Dip Switch way Non functioning in EcoSmart 15 Tactile Switch non functioning in EcoSmart 16 Water Level 5 way connector low voltage e Connects to Low level and High level probes Also connects push button on some PB variants 17 Button Connector 4 way 18 Da
15. s factory fitted A suitable 13A outlet is all that is required Plumbing installation procedure Mains water pressure required limits 5 50psi 35 345kPa Fit a stop Valve on a cold water line and attach a 3 4 BSP male fitting e g 3 4 x 1 2 311 or washing machine type stop valve Connect straight tailpiece of the hose to the stop valve fitting Make sure that the pre attached sealing washer is fitted e urn the water to flush any impurities dust etc from the inlet hose and water pipe Allow several gallons through e Connect right angled tailpiece of the hose to the inlet valve of the boiler again 3 4 BSP Make sure the sealing washer is fitted here also e Turn on water and check for leaks Operating boiler for the first time e Check that all installation procedures have been carried out e Ensure water valve is on e Plug boiler into 13A socket and press power button on the front of the machine marked Power Refer to Figure 1 e power on light will glow green and the machine will fill to a safe level above the elements before heating The display will show the current water temperature and the status Filling e The Ready Status light will cycle two red flashes while the machine is filling to the safe level e After this amount of water has heated to about 96 C the boiler will draw more water in until the temperature drops by 1 or 2 degrees The boiler will then heat again This heat fi
16. ta I O Connector 4 way 19 Relays Inlet Solenoid Dispense Valve EUIS e ds pe s Service Manual 1000677 EcoSmart PB10 1000678 EcoSmart hiDeck 221110 doc Page 11 of 19 4 5 2 Ecosmart Display 1600357 1 Power On Off LED s and Button e shows that machine is switched on 2 Status LED s e displays Error signals via a flashing RED LED 3 Eco Mode On Off LED s and Button PCB Display Label Requirements 1000677 1000678 Replacing THE EcoSmart DISPLAY AND APPLYING LABELS The 1900665 is a very important label it must be applied The 1900665 should rest above the PCB support studs attached to the back of the Ecosmart panel The 1600357 PCB should be mounted onto the back of the Ecosmart panel with 5mm spacers 1401874 between the PCB and the panel Peel off the protective foil from the top of the display board before assembly The 1900659 Label should then be attached to the front of the panel make sure the transparent panel is scratch free before applying the label Label back eco smart 63 5x60mm 1900665 Ecosmart display 1600357 Fascia Front 9 9 lacquer E es Eco Smart dod 1801423 eco smart 62 9x264 5 1900659 Service Manual 1000677 EcoSmart PB10 1000678 EcoSmart hiDeck 221110 doc Page 12 of 19 4 6 TROUBLESHOOTING DIAGNOSTIC GUIDE NOTE FOR THE ECOSMART RANGE IN ADDITION TO THE STATUS LED FLASHING TO INDICATE AN ERROR THE DISPLAY WILL ALSO PRO
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