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Conti TWIN STAR 2 R-EV 2G, Technical Documentation Manual

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Conti TWIN STAR 2 R-EV 2G Technical Documentation Manual Download Page 9

 

 

7 

5  DESCRIPTION OF OPERATING DEVICES 

 

 

 

 

5.1  Steam tap 

 

Two steams taps operating with levers “V” heat liquids or froth milk for cappuccino by injecting 
steam. 
The liquid container should be high enough. The steam wand nozzle should soak into the liquid 
but not touch the bottom. 
 

5.2  Hot water tap 

 

The electric tap “E” is made to prepare hot water specialties (tea, grog...). 
The hot water temperature can be adjusted thanks to a mixer system. The volume of hot water 
can also be adjusted via the programming mode. 
 

5.3  Filters 

 

The machine is supplied with 1-cup and 2-cup filters. Always ensure that the filters are 
unclogged and clean. To remove used coffee grounds from the filter, turn the filter holder 
upside-down and lightly tap it on the edge of a wooden box. 
 

5.4  Dummy filter 

 

The machine is delivered with a dummy filter. This component is only used for the daily cleaning 
of the coffee groups. 
 

5.5  Filter- holders 

 

Never take the filter-holder off when the unit is operating, firstly, ensure that the fluid has 
stopped flowing from the filter-holder outlet.  
Always leave the filter-holders on the machine with the filters filled with the coffee grounds of the 
previous coffee in order to maintain the temperature of the filter-holders. 
When the machine is not in use for an expended period of time, remove the filter-holders and 
expel the used coffee grounds. 
 
 

Summary of Contents for TWIN STAR 2 R-EV 2G

Page 1: ... 04 2008 V1 02 SACOME CONFIDENTIAL Document it is forbidden to duplicate or communicate this document without previous authorization VERSION 2G 3G TECHNICAL DOCUMENTATION ...

Page 2: ......

Page 3: ...14 6 5 Alarms 17 6 6 Heating of the boilers 19 7 HOW TO MAKE A PEFECT ESPRESSO 32 8 SETTING OF MIXER TAP 33 9 MAINTENANCE SETTINGS 34 9 1 Daily Maintenance 34 9 2 Weekly Maintenance 34 9 3 Maintenance every 3 month 34 9 4 12 bar Security valve 34 9 5 Recommendation 34 9 6 Procedure to change the PTFE gaskets 35 9 7 Maintenance parts list on Twin Star 2 39 10 DIMENSIONS 41 11 ELECTRIC DESIGNATIONS ...

Page 4: ...care coffee hot water and steam can cause injuries Never clean the machine with a high pressure water jet The hot parts of the machine in particular the group and the cup warmer can cause burns Gloves or a protecting cloth must be used when cleaning the hot parts Gloves should be worn when removing and cleaning the basin to avoid injuries The safety devices must be regularly checked and maintained...

Page 5: ...t pressure Drain hose provided with the machine The drain pipe must be lower than the machine 400Vac 50Hz 3 phases or 230Vac 50 60Hz Single phase TYPE HEATING POWER Watt TOTAL POWER Watt ELECTRICAL CONSUMPTION Amps 230Vac 400Vac 2 GROUPS 9000 9500 21 max 16 A phase 3 GROUPS 11100 11500 21 max 18 A phase BOILER CAPACITY IN LITERS 2 Groups 3 Groups TOTAL Hot Water steam boiler 14 14 Hot water volume...

Page 6: ... set at 3 or 4 bars _ Check the inlet water hose is as straight as possible so that the water flow is OK _ Use the water hardness test provided with the machine to make sure you have the proper treatment Nota water hardness 10 th French unit or 5 6 dh or Gh German unit _ Make sure the drain hose is correctly installed to the drain and maintained with a Serflex type ring _ Check the drain hose is p...

Page 7: ...e the key delivered with the machine to access the program menus Insert the key into the lock under the machine and turn to the left The 2 first buttons of each coffee group are lighted and the displays show Nota once you turn the key the 4 first buttons of the first group are the programming buttons All the information are on the first display on the left group This is the bar menu To access othe...

Page 8: ...ontact all the boilers heating up coffee and steam begins When a coffee boiler reaches the programmed temperature all the buttons are lighted the machine can make coffee When the manometer shows 1 2bar pressure the buttons steam SC hot water and steam On Off are lighted all the functions can now be used 4 2 Next filling The TWIN STAR 2 EVOLUTION will manage the automatic filling of the boilers as ...

Page 9: ...ensure that the filters are unclogged and clean To remove used coffee grounds from the filter turn the filter holder upside down and lightly tap it on the edge of a wooden box 5 4 Dummy filter The machine is delivered with a dummy filter This component is only used for the daily cleaning of the coffee groups 5 5 Filter holders Never take the filter holder off when the unit is operating firstly ens...

Page 10: ...d and the steam stops automatically 5 7 Espresso tray Supplied with all Mug versions this device allows to place espresso cups in a higher position 5 8 Water hardness tester Supplied with the machine to check the water hardness of the main water supply The units indicated on the tester are dh or Gh German uni t The hardness water which goes into the coffee machine must be 5 6 dh ...

Page 11: ...of the steam boiler is activated When the safety sensor is reached probe SS in contact with water The security relay is activated When the level sensor is reached sensor SN in contact with water The heating elements of all the boilers coffee steam are heating When the required temperature of the coffee boiler is reached All the LED s of the group are lit and the automatic bleeding system is activa...

Page 12: ...ramming mode Select the measure to be programmed by pressing the relevant button All the LEDs of the group will go off only the LED of the selected measure will remain alight The LED of the button CONT blinks The pump and the solenoid valve of the related group are activated The water is flowing Once the required measure is reached press the button again to stop the flow The data is stored The PRO...

Page 13: ...ed even if the machine is switched off 6 3 Beverage preparation 6 3 1 Coffee delivery The machine has to be switched on and the security water level in the steam boiler reached sensor SS Machine switched on and no delivery all the LEDs are lit Press the push button to deliver the programmed coffee measure each push button could be programmed with a different measure see PROGRAMMING MODE To stop th...

Page 14: ...ea push button The tea solenoid valve is activated and the hot water is flowing The LED of the push button is lit The TEA delivery can be programmed When the programmed time is reached the TEA solenoid valve is closed and the hot water flow stopped The flow can be stopped before the end of the program by pressing the TEA button again The TEA and COFFEE functions can be used in the same time During...

Page 15: ...Off are lighted Steam SC Steam On Off 6 3 6 Jet steam SC Pour the cold milk in the jug preferently up to the middle and insert it under the jet steam SC see picture below Pressing Steam SC steam Control activates the steam solenoid valve to warm up the milk The button Steam SC is lighted during the milk warming up When the programmed temperature is reached the jet steam stops Nota You can stop the...

Page 16: ... sensor does not detect the presence of water within the time T ON the solenoid valve of the water supply EE will be activated When the sensor detects the presence of water within the time T OFF the solenoid valve of the water supply EE will be deactivated Both times T ON and T OFF can be adjusted in the programming mode While the steam boiler is filling up the left display will show The steam boi...

Page 17: ...ve the filter holders and evacuate the coffee ground which remind in the dummy filter Put the filter holder on the group again then press the 5th push button Continuous key The rinsing cycle start The pump and the group solenoid valve are 2 sec ON 1 sec OFF repetition 15 times During the Rinsing cycle the display will indicate When the rinse cycle is finished the display will return to the standar...

Page 18: ...ed the LEDs go off The CAPPU push button is deactivated the LED goes off Only hot water and steam can be drawn The displays show 6 4 6 Data reset This function allows to program the standard parameters again when they were lost Procedure Turn off the main electrical supply remove the plug of the machine Press simultaneously the left push button of the left group and the tea push button Turn on the...

Page 19: ...essage appears 6 5 3 Coffee boiler over heating If the water temperature in a coffee boiler rises above 140 C 284 F All the LEDs of the group will blink The heating of the coffee boiler will be stopped The push buttons of the group will be deactivated The display of the group will indicate The alarm will disappear when the temperature decreases 2 C under 140 C 284 F _ Check the good functioning of...

Page 20: ...e display will show To remove this alarm switch off then on the machine 6 5 8 Steam control system temperature sensor disconnected If the steam control temperature sensor is disconnected The LED of the steam push button will blink The display of the first group will show The steam push button is still functioning but the steam control system is deactivated The steam push button must be pressed aga...

Page 21: ...e the programmed T the supply of the relay is going on _ Steam boiler When the 2 bar pressure is detected by of the pressure switch the contact of the pressure switch will open and the relay will deactivate and stop heating A time filter has been installed to avoid constant backlashes of the relay which could damage its contact 6 6 2 Management of the electrical consumption With voltage 400V 3NAC ...

Page 22: ...OASTER MENU only used by the roasters To access the menus insert the key on the lock located under the machine and turn it The programming is carried out with the 4 left push buttons of the le left group and shown on the left display 6 6 4 To enter the programming mode Turn the programming key You will enter the BAR MENU The display of the left group will show To enter the other menus press ENTER ...

Page 23: ...NTER to accede to the next step or to set the automatic time On Off if On no automatic On or to set the closed day no day off Press the first push button of each group in order to activate or suppress the group ENTER for 7 sec Groups Settings Clock adjust HH mm day Doses reading Press or MODE MODE MODE Doses reading reset Doses counter Zero Set ENTER Auto On Off On HH mm Auto On Off Off HH mm ENTE...

Page 24: ...NTER and ON HH mm hour minutes of the automatic switch on OFF HH mm hour minutes of the automatic switch off The setting is valid for all days of the week To suppress this function set as follows On Setting a day off on which the machine will not switch on automatically Set by pressing and To suppress this function set _ Reading of the number of coffee delivered Reading doses Pressing and the list...

Page 25: ...ter Alarm Draining Filling up without pump Coffee boilers temperatures Group boiler 1 XXX C ENTER Group boiler n XXX C ENTER ENTER Tea water with pump Steam control T or to adjust the milk temperature POWER 0 THREE PHASES POWER 1 230 V 21 A POWER 2 230 V 16 A see Filter alarm menu MODE MODE MODE MODE MODE MODE C KP KI KD 1 6 0 0 5 0 Coffee PID range 8 C MODE MODE MODE or to set the temperature mea...

Page 26: ...oup 1 ENTER MODE Display Time Bargraph ENTER Display Name Bargraph Steam Boil temp 119 C V KP KI KD 3 8 0 0 10 0 Steam PID range 8 C or to set the temperature of steam boiler Mode to come to the next programming step Enter to change the parameter or to set the values P I or D for steam boiler management Mode to come to the next programming step or to set the range of regulation of PID steam boiler...

Page 27: ... regulation start to work when this range of temperature is reached Filling up Filling up of the steam boiler with or without pump SOLO KIT Pre Brewing Setting of the pre infusion time for the 4 coffee push buttons of each group i number of push button XX Total time of pre infusion T1 on T2 off YY time of switch on of the solenoid valve T1 on The values are expressed in 1 10 seconds 1s 10 The pre ...

Page 28: ...elds can not be reached in normal MODE To reach them _ Switch the machine OFF _ Get into the programming mode _ Get to Drain or heating Draining when the machine is turned OFF This function allows the technician to drain the coffee boilers Proceed as follows 1 Turn OFF the machine and enter in Technical Menu programming 2 Use the cut off tap on the flow meter in order to cut the main water supply ...

Page 29: ...ws The boilers heating up is not activated the auto filling procedure start Then the display shows again You can go out of the programming menu and turned on the machine Name The cursor is on the first letter press ENTER to go forward Press or to change the letter Press MODE to end the operation Indication on displays 3 possibilities 1st possibility same setting than Tw2 Display 1 Display 2 Machin...

Page 30: ...the steam boiler Range of regulation for PID system The range of regulation must be defined The PID regulation start to work when this range of temperature is reached Password Setting The machine is delivered with password Allows to change the password to the Technical menu set in the factory The display will show Press ENTER the display will show Use MODE and ENTER the 4 coffee push buttons of th...

Page 31: ...ming Key i Grp j XXX coffees Coffee Credit enabled MODE ENTER or adjustment of residual credit MODE MODE MODE ENTER MODE or setting of the number of coffees before alarm ENTER ou adjustment of the number of coffees ENTER next key or next group Back to the Bar And Technical MODE MODE Setting Password MODE ENTER ENTER or or or MODE To enter the password 5 characters Retype new psw MODE New Password ...

Page 32: ...nction similar functions of other menus are not concerned The display will show Maximum amount to be set 999999 then the counter is going back to zero Press to reset the counter The display will show Press ENTER within 5 seconds otherwise the reset will not be taken into account Total of coffees delivered Reading the total quantity of coffees made since the first activation of the roaster system M...

Page 33: ...econds to abort Change of the Password The machine is delivered with a 5 character password Allows to change the password to the Roaster menu set in the factory The display will show Press ENTER the display will show Use MODE and ENTER the 4 coffee push buttons of the left group to enter the new password Each time one of the push buttons is pressed an asterisk will appear on the display After the ...

Page 34: ...h espresso flow of 20 to 25 seconds The Machine The machine must be accurately adjusted and daily cleaned the Water temperature regulated between 86 to 92 C 187 198 F the pressure set between 8 and 9 bars to assure optimum aroma extraction and give the fresh shot of espresso its consistent crowning cream and flavourful character Daily cleaning is essential to erase any thick and rancid residues wh...

Page 35: ...e user want a very hot tea water max 98 C t ighten the adjusting screw in order to limit the admission of cold water If the user want a tea water less hot unscrew the adjusting screw in order to increase the admission of cold water Be careful when you unscrew the adjusting screw 3 turn max or you could lose the screw in the drip tray ...

Page 36: ...ery 3 month On the group head dismantle and clean the sprinkler ref 355900 and the diffuser ref 404740N dismantle and clean the spray nozzle ref 410704 be careful to cut off the water supply dismantle and clean the solenoid valve 3ways be careful to cut off the water supply 9 4 12 bar Security valve This component assure the security of the coffee group when the pressure is exceeding 12 bar All th...

Page 37: ...ions 1 First fix the group stand ref 410967 on the coffee group 2 Gather the following elements 1 complete coffee group 1 boiler ref 4106201 1 rear flask ref 4109471 2 PTFE gaskets 57 6 x 63 7 x 3 2mm ref 410619 3 cap nuts ref 4106311 3 EPDM o rings 14 x 1 78mm ref 411672 ...

Page 38: ...PTFE gaskets on the coffee group on the rear flask 4 Gather the group boiler and rear flask be careful to the location of the bleeding screw on the top 5 Place the 3 EPDM o rings in the 3 cap nuts 6 Screw the 3 cap nuts ...

Page 39: ...7 Gather the following elements the bleeding screw and its copper gasket ref 406708 406709 8 Take a torque wrench and set at 1 5 Nm 9 Maintain the coffee group with a vice and tighten the 3 cap nuts 1 5 Nm ...

Page 40: ...t to bleed the coffee boilers 12 Warm the coffee group for 15 minutes then shut off the machine and wait 30 minutes 13 After 30 minutes tighten again the 3 cap nuts with the torque wrench 1 5 Nm The procedure is completed the Twin Star 2 is ready to use Once a year tighten the 3 cap nuts again ...

Page 41: ...rs 355900 2 or 3 Every 6 8 months N 1 Coffee boilers group heads Group head Solenoid valve 3 ways 230Vac 410615 2 or 3 Every 12 months C Check the seat 410703 and the plunger of the solenoid valve and change it if necessary Safety valve 3bar Complete pressure relief valve 3bar 411827 1 Every 24 months C After having removed the valve back the new safety valve with Teflon tap on the thread in order...

Page 42: ...137 061200 055300 1 1 Every 12 months R R Put Conti grease 408235 around O rings 7 Supplying voltage Relay power Contactor 409892 1 Every 24 months C Every 10 month we suggest to screw tighter the contactor terminal s and the auxiliary contactor terminals Front O rings 2 O rings per tap 403457 2 or 4 Every 12 months R Put Conti grease 408235 around O rings 8 Steam Taps Gasket 1 gasket per tap 4075...

Page 43: ...41 10 DIMENSIONS ...

Page 44: ...V Steam Control system probe 14 MP Pump 15 ON OFF On Off button 16 SV Temperature sensor for steam boiler 17 RCCi Heating element group n i 18 RCi Heating element n i for steam boiler 19 RS Security relay 20 RV i Adjustment of the display contrast groups n i 21 SN Level probe 22 SS Security probe 23 ST i Temperature sensor group n i 24 STR Auxiliary contact of relay RS 25 TSi Coffee boiler n i sec...

Page 45: ...CN23 STEAM CONTROL BOX K Vap CN20 GR2 CONTROL BOX steam CP 2 CN21 GR1 CONTROL BOX tea CP 1 CN24 HOT WATER CONTROL BOX K Te CONNECTION TO THE RELAY BOX CN22 STEAM CONTROL BOX BOILER STEAM PROGRAMMING uP GROUND REFERENCE pink 2 03 CN19 CN20 CN21 CN22 CN23 CN24 CN1 CN16 CN17 CN11 CN12 CN13 CN14 CN15 CN10 CN6 CN7 CN8 CN9 CN5 CN2 CN6 CN7 CN8 KEY STR OUT2 OUT1 SS SN SN SS OUT2 OUT1 OUT1 OUT2 OUT1 OUT2 S...

Page 46: ...key is inserted and turned the first four push buttons of the left group will become programming push buttons Left group The display shows Press ENTER during 5 sec The display shows Press Push buttons of the left group The display shows Press or to select the number of groups then ENTER To LEAVE the programming mode turn the programming key in the opposite direction Groups number 1 or Water volume...

Page 47: ... 2 03 CN19 CN20 CN21 CN22 CN23 CN24 CN1 CN16 CN17 CN11 CN12 CN13 CN14 CN15 CN10 CN6 CN7 CN8 CN9 CN5 CN2 OUT2 OUT1 SS SN OUT1 OUT2 SN SS Temperature sensors connections Be careful when changing the motherboard Do not reverse the temperature sensors connectors otherwise it will damage the coffee boilers ...

Page 48: ... 92 91 91 92 1 8 LOGICAL CIRCUIT CONNEXION TO THE FUSES BOX EC Tea SINGLE FASE TRANSFORMER BREACKER 25 A For 230 v STATE RELAY TO THE SOLID 93 93 TWIN STAR2 REVOLUTION 2G 3G 05 TS3 TS2 TS1 TS 2 EV3 EE P3 N N N CN1 3 15A T F1 F2 1A T CN2 04 MP N P2 N P1 N EV1 EV2 L1 0 N N N 6 6 CN3 0 1 L1 RS N 6 0 6 ...

Page 49: ...CN2 04 L1 0 6 6 CN3 0 1 L1 RS 6 0 6 2 0 L1 2 1 L3 L2 L3 L1 L2 LOGICAL CIRCUIT CONNEXION TRANSFORMER SPECIAL 230 V Tri SOLID STATE RELAY TO THE WIRING TWINSTAR2 REVOLUTION 2G 3G 1 93 TO THE FUSES BOX 2 8 8 93 06 P2 N P3 EE EV3 EC Tea N N N EV1 MP P1 1 92 92 EV2 N N N N 91 91 N 05 TS3 ...

Page 50: ...9 FA20 FA21 FA17 FA18 FA11 FA12 FA22 FA21 FA20 FA19 FA18 FA17 FA12 FA11 82 OUT 82 IN P2 EV2 92 IN 92 OUT 1 OUT 1 IN MP 8 IN 8 OUT EE 07 IN 07 OUT Vap Tea EF FA FUSE 2 Ampères FAST OUT OUTLET IN INLET 91 OUT 91 IN EV1 06 OUT 06 IN 81 OUT 81 IN Vap P1 ...

Page 51: ...nlet on the electronic box on connector Polarity To the CN15 connector The Solid state relay inlet is DC 3 32V Solid State Relais Red wire on the Black wire on the breacker To the general SOLID STATE RELAY INTERFACE L3 L1 L1 L2 For 230 V 3 AC SSR VAP3 L2 L3 L2 L3 CAF3 SSR L3 L1 SSR SSR SSR SSR CAF2 CAF1 VAP1 VAP2 L1 L2 ...

Page 52: ...gatory to put the good polarity on the solid state relay inlet on the electronic box on connector Polarity To the CN15 connector The Solid state relay inlet is DC 3 32V Solid State Relais Red wire on the Black wire on the breacker To the general SOLID STATE RELAY INTERFACE For 400 V 3 N AC SSR VAP3 N L2 SSR L3 CAF3 N ...

Page 53: ...51 13 HYDRAULIC DRAWING Σ Σ ...

Page 54: ...normes 93 68 CEE marquage CE 73 23 CEE basse tension EN 60335 2 15 sécurité des appareils électrodomestiques et analogues compatibilité électromagnétique directive 89 336 CEE modifiée par directive 92 31 CEE application des normes harmonisées EN 55014 pour l émission EN50082 1 pour l immunité électromagnétique 97 23 CEE équipement sous pression EU KONFORMITÄTSERKLÄRUNG Die Firma SACOME CONTI deren...

Page 55: ......

Page 56: ... P 1 1 9 M C 9 8 0 0 7 M O N AC O C e d e x T é l 3 7 7 9 3 1 0 4 3 4 3 F a x 3 7 7 9 3 1 0 4 3 4 4 h t t p w w w c o n t i e s p r e s s o c o m h t t p w w w c o n t i s p a r e p a r t s c o m E m a i l t e c h c o n t i e s p r e s s o c o m ...

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