OPERATING PRINCIPLE FRESHONE (G) FRESHMORE (XL
Contents
1. FRESHONE FRESHMORE XL FRESHGROUND XL www bravilor com All rights reserved No part of this document may be copied and or published by means of printing photocopying microfilming or by any other means whatsoever without the prior written consent of the manufacturer This also applies to the included drawings and or diagrams The information in this document is based on data that was available at the time the design the material characteristics and the operating methods were published meaning that this document is subject to change For this reason the instructions are merely a guideline for the installation maintenance and repair of the machine displayed on the front cover This document applies to the standard version of this machine The manufacturer therefore declines all liability for any damage arising from specifications that deviate from the standard version of the machine delivered to you This document has been compiled with the utmost care However the manufacturer cannot be held liable for any errors it contains or the consequences thereof 1 OPERATING PRINCIPLE 0 000 ence ence 1 1 General operation 0 ccc eee eee 1 2 Water dosing system 1 3 Starting up the machine 00 cece eee 1 3 1 Boiling point determination program 1 3 22. 1 11 2 Return flow protection 1 11 3 High temperature safety Switch 1 12 Software protection sans we ce rene pasta 1 13 Programming sacccccceeeotctcencccucusereseceeneeencesetesesuaseeaenees 1 7 1 1 7 1 1 7 1 1 7 1 OD ONNN Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig 1 Water dosing SYSTEM 1 nananana enan 26 Open door 36 Open door 2 Float en eae ea ted ee chad Water selector complete 0 0 ccc eee eee 4 Boiling point determination program ccc eee eee een ees Or UMP MO 5 no saree eet weed ees oto cee eens ees ae E eee ee FUMOS sages to oo E eee es oe ed eee 7 Encoder 8 Water selector 1 eee 9 Water selector internal ee ee 19 Water rotation OISG s sessies tae hE Oc Loew eb eia k sou 11 Water rotation CISC es ho Ee ee ed eh eee 12 Water rotation disc with wide Shaft
3. 13 Water selector components 0 ccc eee EXMAUGSt NOOO nc cade ou we Oo ee eee by aes bee epee taste ep dane 16 Steam exhaust system for three mixing systems 17 Ventilation system FreshOne FreshMore 18 Ventilation system FreshMore XL FreshGround 19 Brewer 20 Adjusting the brewer chamber 21 Adjusting the paper transport 0 ccc eee eee etn eens 22 Bypass 23 Coffee grinder sac oda ace oe eae aoe dg le Ae aoe A ene ae OR ee AE adn ok de Re 24 Drip tray for the water 25 LCD with error message 1 arannana ennenen Program OULON the eke ete okies the 28 Total counter 1 ee eee eee eee ete ete 29 Individual counter readings 2 50 30 Day COUNTE et me ence are GTa Mee ats en a he EPA 31 Day counter at zero bee aed ae wk ht a 32 General selection screen eee eee aed eee eae eae wee ee 33 B
4. Set the water temperature to 0 C Press the right button This starts the calibration program again The working temperature is automatically set to 4 C below the boiling point 7 Descaling signal ontact your local water company to find out how hard your water is Always select the right setting The machine s default setting is 3 10001 The machine continuously records the time the intake valve is open and therefore the amount of water in litres that flows through the system When the amount of water recorded by the machine is higher than or equal to the amount of water set in the software the descaling pictogram will start blinking on the LCD Fig 34 Descaling pictogram 8 Energy saving mode Minutes hours after which the machine switches to ECO mode All functions such as the boiler ventilation and display lighting switch off and the LCD displays ECO The machine switches on again when a selection button is pressed Depending on the switch off time it can take a few minutes before the machine is ready for use 9 Waste bin full indicator The FreshGround has an electronic counter that keeps track of the number of cycles the brewer has completed and transported a cake of coffee to the waste bin The waste bin is full when the programmed number has been reached The waste bin pictogram displays on the LCD and the machine blocks The machine is released when the waste bin has been emptied and the coun
5. 1 3 3 Filling the machine 1 3 4 EEUN EEE E E eed 4 E eee ee E E ena E eee ee 1 3 5 DOSING S 1 4 Powder dosing system 1 5 MIKN sisir heed sc danced Eaa AE 1 6 Ventilation system 1 7 1 Adjusting the brewer 1 Clamping force ewe 2 Adjusting the clamping force 0 o Faber WanS0ON 4 Adjusting paper transport 1 6 Bypass er ea oe eee ee ee ee eee 1 9 Coffee grinder 1 9 1 Replacing the grinding discs 2 ae bw anh dee dawn ele dene 1 9 2 cated ee ad ae doe on ee ears eee Oe 1 10 Operating system 2 1 10 1 SCV DOUG EE ee wb ee ee ae eo 1 10 2 oo 5 sen a decade pa Secs tee eee he 1 11 Hardware protection 1 11 1 Overflow protection
6. Fig 28 Total counter Fig 29 Individual counter readings 3 1 Individual readings for dispensed drinks Select the desired drink by pressing one of the selection buttons and select the size by pressing cup mug or jug The corresponding counter reading is displayed on the LCD After a few seconds the reading returns to that for all drinks 14 BRAVILOR BONAMAT 3 2 Setting the day counter to zero Press one of the selection buttons to select a drink Keep pressing the selection button until the day counter displays 0 OOO Fig 30 Day counter Fig 31 Day counter at zero e Press Enter to return to the general selection screen Fig 32 4 General selection screen General programming Press Enter and proceed with point 5 Drink dependent settings Press the selection button and proceed with point 18 OO Fig 32 General selection screen Fig 33 Button for descaling program 5 Descaling program This machine has a descaling program Press Fig 33 to start the descaling program Read the corresponding chapter in the user manual Press CANCEL within 5 seconds to cancel a descaling program that is about to start 15 I BRAVILOR BONAMAT 6 Boiler temperature Set the maximum temperature for the water in the boiler 6 1 Rerun the boil program
7. is regulated proportionally The heating switches on for a specific amount of time and then off for a specific amount of time A measurement is made after the period that the heating has been off The value measured determines the length of the next heating period The higher the temperature in the boiler the shorter the moments that the element is on and the longer the intermediate time becomes This enables an accurate temperature to be obtained in the boiler There is a second temperature sensor on the boiler Fig 1 3B This sensor monitors the dispensing temperature of the dosed water If this sensor measures a too low temperature the machine is blocked No more water is dosed I BRAVILOR BONAMAT 1 3 5 Dosing Dosing takes place when The float is in the highest position The second temperature sensor measures a temperature that is higher than the blocking temperature Pressing a selection button starts the pump motor Fig 5 at a certain speed rom for a given amount of time based on the programmed amount Fig 5 Pump motor rotor Fig 6 Pump housing The pump rotor rotates in the water filled pump chamber It is shaped by the bottom of the float tank and the bottom of the pump housing Fig 6 The pump rotor pumps the water from the pump chamber through the siphon hose at the bottom of the boiler e This presses the hot water out of the boiler e The float and the magnetic valve ensure that the correc
8. roast 11 I BRAVILOR BONAMAT 1 10 Operating system The operating system consists of a Keyboard Control board 1 10 1 Keyboard The keyboard is the circuit board with LCD and press buttons Settings that can be changed in the program menu are also saved in the Eeprom of this circuit board Replacing the keyboard returns the machine to its factory settings 1 10 2 Control board The control board is in the machine and contains the electronics that drive the machine This board controls the power for the low voltage components and the temperature The board also contains one or more relays and semiconductors that switch the electrical components on and off It also has a microprocessor that controls the boiler routine 1 11 Hardware protection The machine has a number of hardware protections These protections prevent dangerous situations from occurring such as overheating and or water in the machine 1 11 1 Overflow protection This protection is in the float tank and ensures that excess water caused by a too high water level flows to the bottom of the machine through the overflow and hose 1 11 2 Return flow protection A pipe in the float tank sprays the water from the magnetic valve against the cover of the float tank The water then flows into the float tank This prevents water from flowing back into the system and entering the water supply if the water pressure in the magnetic valve drops 1 11 3 High tempe
9. the machine will be used During the boiling program the LCD displays 100 C and a flashing thermometer After 10 to 15 minutes the thermometer stops flashing which indicates that the boiling point has been determined 110 1 TEENETE Fig 4 Boiling point determination program 1 3 2 Initialization Switch on the machine the button is on the inside of the door Close the door or insert the service key The LCD displays all of the pictograms that can be displayed on the LCD The pictograms display on the LCD until the brewing unit has gone through a whole cycle The following information is then displayed The version number of the software installed by the manufacturer microprocessor The version of the software table Eeprom that was installed by the manufacturer This process takes about 20 seconds and finishes with a steaming cup on the LCD to show that this phase has been successfully completed 1 3 3 Filling the machine The float tank and the boiler are connected by a siphon hose Together they create a communication entity When the machine is switched on for the first time the float tank Fig 2 is empty and the float Fig 2 A ina lowered position The magnetic valve Fig 1 opens and fills the float tank with water at pressure independent speed of 2 litres minute The water in the float tank runs through the hose under the float tank to the boiler When the wa
10. 0 Ohm or infinite the machine will switch off and Error 2 will display on the LCD Error 3 Magnetic valve is open without selection Pressing the start button switches on the solenoid valve A timer is activated if the valve switches on without pressing the start button If the magnetic valve switches on again within the set time without pressing the start button there is either a leak in the water system or the water is boiling The machine switches off and Error 3 displays on the LCD Error 4 Calibration is taking too long The time that the machine is on is recorded during calibration If this time is too long the machine switches off and Error 4 displays on the LCD Error5 Water selector in wrong position e The selector returns to the start position during start up and after each dosing If the selector cannot find its position during this routine it switches off and Error 5 displays on the LCD Error6 Magnetic valve is open too long If the float tank takes too long to fill whatever the reason the machine will switch off and Error 6 will display on the LCD Error 7 Wrong chip card In a number of cases chip card be inserted a chip card reader the keyboard Data on the chip can be downloaded or uploaded If the software on this chip card does match the software on the machine Error 7 will display on the LCD Error 8 Communication error between both circuit boa
11. Float tank complete A Float B Pump motor C Pump rotor D Pump housing E Encoder 3 Element complete boiler A Element B Temperature sensor NTC C Temperature sensor NTC 4 Water selector complete Water selector motor Top cover of water selector Light sensor Water rotation disc Water distributor MOO Fig 3 Water selector complete I BRAVILOR BONAMAT 1 3 Starting up the machine 1 3 1 Boiling point determination program Hot water may come out of the hot water outlet while this program is running The machine automatically runs through the boiling point determination program the first time the machine is used The boiling point of the water is now determined This is necessary because the boiling point depends on local atmospheric pressure The boiling point at sea level will be about 100 while the boiling point at 2 000 m is somewhat lower at 97 C The water in the boiler is heated at full power to about 80 C when the machine is switched on Fig 4 A The water is then heated in the boiler at reduced power until the temperature sensor on the outside of theboiler stops registering a change in temperature for a few minutes Fig 4 B The boiling point has been reached and the measured value is saved in the software The operational temperature in the boiler will be 4 C below this point Because the boiling point of water depends on the atmospheric pressure this program must run at the location where
12. ace a piece of filter paper between the brewer and the brewer chamber Rotate the brewer housing upward to the highest position The brewer chamber is all the way down and pressing on the filter paper Turn the adjustment bolt 1 behind the brewer chamber such that the filter paper cannot be pulled out from between the brewer chamber and the brewer Tighten the adjustment bolt by turning it half a turn or a full turn Put the brewer back in the machine Insert the filter paper as described in the instructions Make sure it works by making a cup of coffee use the service key Fasten the adjustment bolt by turning it a quarter of a turn if too much water leaks along the filter paper Loosen the adjustment bolt by turning it a quarter of a turn if the brewer housing does not move evenly in the lowest position when the brewer chamber rises 1 7 1 3 Paper transport The filter paper transport should be set in such a way that the distance between the cakes of coffee residue is large enough for the next cycle to take place on a piece of filter paper that is completely clean To prevent excessive paper use and replacing the roll too often make sure the distance between the cakes of coffee residue is not too large The distance between the cakes of coffee residue should be between 5 and 10 mm 1 7 1 4 Adjusting the paper transport Fig 21 Adjusting the paper transport Always check the clamp in t
13. c interrupt the light beam emitted by the light sensor and transmit the pulses to the controls Fig 11 The start position is determined when the light sensor detects the wide shaft on the rotation disc Fig 11 12 Fig 11 Water rotation disc Fig 12 Water rotation disc with wide shaft Operation of the water selector after a selection button has been pressed The water selector determines its position based on the selected drink Once the position has been determined the pump motor is triggered The dosed hot water is pumped into the top of the water selector Fig 13A The water flows through the centre hole in the rotation disc Fig 13B The water exits through the oblique hole at the bottom Fig 13C The water then drops into one of the chambers at the bottom of the water selector Fig 13D The water flows through the connected hoses to the appropriate component The water selector returns to the start position Please note The arrow Fig 13A shows a small hole on the top of the water selector cover This is a ventilation hole that prevents siphonage A hose that goes to the top of the float tank is connected to the tulle Based on the selected drink the water selector can rotate during pumping This is done when water is needed in several mixing systems A B C D Fig 13 Water selector components I BRAVILOR BONAMAT 1 4 Powder dosing system The powder dosing system consists of an ingredient canister
14. ck mugs manually Set the value to the minimum The LCD displays OFF the machine is set for paid dispensing mugs will not be dispensed 41 Dose for jugs hot water See Dose for cups hot water 41 1 Block jugs manually Set the value for jugs to the minimum The LCD displays OFF the machine is set for paid dispensing jugs will not be dispensed 42 Pricing hot water optional Set the desired price 18 43 General selection screen 44 Programming sugar milk 45 Default strength Sugar milk The amount of milk or sugar that is dosed in 46 Step size of strength Sugar milk This indicates the step in percent of the default strength e g default strength 60 step size 10 the strengths to be set are 54 60 66 47 General selection screen Pressing the program button 4 again saves the settings and returns the machine to stand by mode BAY all le gt Q Iza Fig 35 Program button Closed door Fig 36 Open door 19 BRAVILOR BONAMAT 2 EEE I BRAVILOR B ONA MAT
15. he brewer chamber before adjusting the paper transport Changing the clamping force of the brewer chamber will affect the paper transport WARNING Turn the adjustment bolt in a closed position so it cannot be turned too far Hold on to the adjustment bolt 2 and loosen the locknut 1 Turn the adjustment bolt upward if coffee residue is left in the brewer chamber This increases the distance between the cakes of coffee residue Turn the adjustment bolt downward to decrease the distance between the cakes of coffee residue Fasten the locknut after you have finished adjusting the paper transport Make sure the paper transport works Check the distance between the cakes of coffee residue TIP The adjustment bolt is easiest reached when the brewer chamber is the housing is completely down 1 8 Bypass A bypass is always connected to the brewer The bypass fulfils the following function The maximum amount of water that fits in the brewer cylinder is 170 ml By using the bypass an additional 130 ml of hot water can be dosed for the coffee extract through the special outlet Fig 22 so that 300 ml of coffee can be made in 1 brew cycle The bypass must first be activated in the program If the bypass is activated the software will automatically dose stronger coffee Because stronger coffee creates more foam in the mixing chamber when the housing rises the brewer stop 0 must be adjusted and set to a longe
16. ll not be dispensed 21 Dose for a jug of coffee See Dose for a cup of coffee 21 1 Blocking jugs Set the value for jugs to the minimum The LCD displays OFF If the machine is set for paid dispensing jugs will not be dispensed 22 Default coffee strength Amount of ingredient in dosed from the canister that displays on the LCD The software translates the programmed percentage to the speed of the canister motor and therefore the strength of the ingredient 23 Step size for strength of coffee This indicates the step in percent of the default strength e g default strength 60 step size 10 the strengths to be set are 54 60 66 24 Foam stop SO When the brewer housing rises it stops the set time This enables foam to settle This is recommended for high coffee doses and or if the bypass function is used 25 Extraction time 51 When the brewer housing rises it presses air through the filter paper to the coffee and the hot water and mixes them thoroughly The housing then stops for a few seconds to stimulate the extraction S1 i e extend contact time 26 Vacuum time S2 for cups The housing lowers so the coffee extract can be sucked through the filter paper Before the coffee extract exits the brewer the housing stops again S2 to extract as much liquid from the coffee residue as possible and produce a dry cake of coffee This time does not affect the taste 26 1 Vac
17. lowers so the coffee extract can be sucked through the filter paper Before the coffee extract leaves the brewer the housing stops again Stop 2 for anywhere between 0 to 10 seconds to extract as much fresh coffee as possible from the coffee residue Fig 19D The housing then lowers further releasing the opening of the outlet so the coffee extract can flow through the coffee outlet into a cup mug or jug When the brewer is dosing empty an additional 3rd non settable stop takes place so the dosed coffee can flow out slower Fig 19E After dosing the housing moves downward and automatically transports the filter paper and the coffee residue to the waste bin Fig 19F The housing then moves upward into its idle position just above the opening of the outlet The brewer is ready for the next cycle Fig 19G Fig 19 Brewer BRAVILOR BONAMAT 1 7 1 Adjusting the brewer 1 7 1 1 Clamping force The clamping force of the brewer chamber must be set in order to prevent too much water from leaking through the filter paper You can see if water is leaking by checking the filter paper If the filter paper is wet for more than one centimetre all round after a cup of coffee has been made too much water is leaking The clamping force may not be set too high because doing so will cause excessive wear or the brewer motor to get jammed 1 7 1 2 Adjusting the clamping force Fig 20 Adjusting the brewer chamber Pl
18. ned before putting them back in machine This is the only way to guarantee that the grinder will work properly The grinding discs must not touch each other during installation Calibrate see 1 9 2 after installation Fig 23 Coffee grinder 10 I BRAVILOR BONAMAT 1 9 2 Calibration Switch off the machine Slowly turn the flange 4 clockwise until the grinding discs just touch each other you will hear a grinding like sound Turn the flange 4 back 21 holes 42 clicks 1 hole is equivalent to about 0 022 mm in height Lock the flange 4 with the lockpin 1 Insert the service key Switch on the machine Place the hose the brewer s hot water supply above the waste bin Fill the ingredient canister with coffee beans Place a cup under the outlet of the coffee grinder Run the grinder once select the button for coffee and press the start button C Check the coarseness of the ground coffee Please note The first two grinds will reflect the old setting Throw this coffee away The third grind will reflect the new setting 12 Change the setting if necessary 13 Adjust the amount of ground coffee in the program menu operator manual Use about 7 5 g of ground coffee for each cup of 120 ml Please note If you hear a metallic sound the flange 4 will have to be adjusted See step 5 The coarseness of the ground coffee can vary depending on type of coffee bean and
19. ntilation system The ventilation system Fig 17 18 ensures that the hot steam that is produced during dosing can escape This prevents the hot steam from settling and condensation from forming in the mixing chamber This substantially decreases the amount of filth that can settle in the mixing chamber Fig 17 Ventilation system FreshOne FreshMore Fig 18 Ventilation system FreshMore XL FreshGround FreshGround XL 1 7 Brewer The brewer works according to the vacuum principle whereby ground coffee and hot water are drawn through a micro fine filter and filter paper into a cylinder by a housing Pressing a selection button that uses FreshBrew coffee starts the following process Ground coffee and hot water are dosed in the top of the brewer through the water selector The brewer housing is in its idle position in the cylinder just above the opening of the outlet Fig 19A The housing rises pressing air upward and out of the cylinder This air movement ensures that the coffee is thoroughly mixed with the hot water To prevent the mixture of coffee and hot water from flowing over the mixing chamber when the coffee dose is high a brew stop Stop 0 between 0 and 10 seconds can be programmed to take place halfway through this process Fig 19B The housing stops for a few seconds at the very top to stimulate the extraction The stop can be programmed 0 to 10 seconds Stop 1 Fig 19C The housing then
20. r time t Fig 22 Bypass BRAVILOR BONAMAT 1 9 Coffee grinder We recommend checking the coffee grinder and the coarseness of the ground coffee periodically and to maintain the grinder according to the below table Check the coarseness of the ground coffee Clean the coffee grinder Calibrate the coffee grinder if necessary After every 1000 kg Replace the grinding discs 1 9 1 Replacing the grinding discs Pull the plug from the socket Remove the drip tray Open the door with the provided key Open the cover Tear off the filter paper to just in front of the brewer Remove the roll of filter paper Close the bean supply push the drawer back Remove the ingredient canister from the machine Loosen the two fastening screws on the cover plate and remove the cover plate 10 Remove the coffee grinder by loosening the bolts 3x 11 Mark the position of the lockpin 1 12 Remove all coffee beans hoover 13 Remove the lockpin 1 14 Loosen the flange 2 by turning it anticlockwise 15 Remove the grinding disc by loosening the three screws 3 on the moving and the static flange The moving flange must be held in place with a plastic tool 16 Clean all parts thoroughly The grinding unit has now been removed and can be replaced The new grinding disc must be installed in reverse order ey Please note The surfaces of the different components must be thoroughly clea
21. rature safety switch The high temperature safety switch is fastened to the outside of the boiler with two Klixons If for whatever reason the controls do not switch off the boiler the Klixons will ensure that the voltage on the element is mechanically switched off Steam escapes from the boiler during the boil dry process This steam enters the water selector and exits between the cover and the distributor To prevent droplets from entering the ma chine the water selector is equipped with a drip tray Fig 24 Fig 24 Drip tray for the water selector 12 1 12 Software protection Depending on the type of machine it will have a number of software protections The software monitors all of the machine s inputs and outputs during the whole process The software intervenes when a situation occurs that shouldn t This intervention usually results in the machine being switched off and an error message displaying on the LCD For possible solutions to this error message see the below list of errors 7 Er ror Fig 25 LCD with error message ERROR LIST Error 1 Brewer is not running The brewer motor starts after a drink is selected that uses FreshBrew coffee If the microswitch does not switch although the motor should be running Error 1 displays on the LCD Error2 Boiler temperature has been exceeded f the temperature sensor NTC displays a value that is out of range
22. rds Communication takes place when the machine is starting up and when it is used Communication takes place through a flat cable between the keyboard and the control board If communication fails Error 8 will display on the LCD 13 I BRAVILOR BONAMAT 1 13 Programming The program in the FreshBrew machines consists of a simple program carousel Refer to the user manual while reading this text Pressing the program button activates the program and enables you to activate or change settings Pressing the program button again saves the settings and returns the machine to stand by mode 1 Open the door with the key Z ANNS E les 1 520 9 i Q POS lt lt Fig 26 Open door Fig 27 Program button 2 Press the program button 4 to start the programming sequence Reading all drink counters at the same time The LCD displays an alternating 3 and 6 digit number The 3 digit number indicates the total number of cups mugs or jugs that have been dispensed since the counters were last reset to zero day counter The 6 digit number indicates the total number of cups mugs or jugs that have been dispensed since the machine has been in use total counter Co O C m
23. s a larger amount of water to a longer pump time If the amount of water is changed the default strength is changed so that the coffee is proportionally stronger to weaker 32 Dose for mugs drink dependent See Dose for cups drink dependent 32 1 Blocking mugs Set the value for mugs to the minimum The LCD displays OFF the machine is set for paid dispensing mugs will not be dispensed 33 Dose for jugs drank dependent See Dose for cups drink dependent For a number of drinks the jug function is blocked by the manufacturer 33 1 Blocking jugs Set the value for jugs to the minimum The LCD displays OFF the machine is set for paid dispensing jugs will not be dispensed 34 Default strength drink dependent The amount of ingredient that is dosed in The number of ingredient containers to be set depends on the selected drink See ingredient sheet 35 Step size for strength drink dependent This indicates the step in percent of the default strength e g default strength 60 step size 10 the strengths to be set are 54 60 66 36 Pricing drink dependent optional Set the desired price 37 General selection screen 38 Programming hot water 39 Dose for cups hot water Set the amount of water in ml The software translates a larger amount of water to a longer pump time 40 Dose for mugs hot water See Dose for cups hot water 40 1 Blo
24. t level of water is maintained in the float tank and pump chamber The volume of moved liquid yield is mainly determined by the time and speed of the pump motor The time that the motor is on is controlled by the software and is very accurate The number of revolutions a motor rotates is measured by an active revolution counter Fig 7 shows that a disc is mounted on the shaft of the pump motor A Encoder This disc rotates at the same speed as the pump rotor The encoder rotates be tween a light sensor B interrupting the light beam each time The interruption of the light beam is converted into pulses that can be read by the electronics Fig 7 Encoder Fig 8 Water selector This active control of the rotational soeed guarantees that the number of revolutions per minute and therefore the water yield remain constant while the pump motor is on Selecting the dosed hot water This machine has a hot water selector This component Fig 8 enables the dosed water in the boiler to be dosed in at least three directions and at most six directions depends on the type of machine Fig 9 Water selector internal Fig 10 Water rotation disc After the machine has been switched on the water selector goes into stand by according to the following procedure The water selector motor is triggered This motor drives the water rotation disc with a plastic worm Fig 9 10 The shafts on the rotation dis
25. ter reset Press the button with the waste bin pictogram to reset the counter 10 Coin mechanism Activate this setting only if the machine has a coin system optional and you would like to use it Please note Settings 11 to 16 are only available if the coin system has been activated 10 The price is set in the program menu for coffee see point 28 for drink dependent see point 36 for hot water see point 42 11 Coin rejection acceptance 0 05 Indicate whether the coin should be rejected left button or accepted enter button 12 Coin rejection acceptance 0 10 See point 11 13 Coin rejection acceptance 0 20 See point 11 16 14 Coin rejection acceptance 0 50 See point 11 15 Coin rejection acceptance 1 00 See point 11 16 Coin rejection acceptance 2 00 See point 11 17 General selection screen all of the illuminated buttons can be selected 18 Programming coffee 19 Dose for a cup of coffee Set the amount of water in ml The software translates a larger amount of water to a longer pump time If the amount of water is changed the basic strength is automatically adapted so that the strength increases or decreases proportionally 20 Dose for a mug of coffee See Dose for a cup of coffee 20 1 Blocking mugs Set the value for mugs to the minimum The LCD displays OFF If the machine is set for paid dispensing mugs wi
26. ter has reached a level that pushes the float upward the water level in the float tank is equal to that in the boiler The magnetic valve is switched off Please note Because the float tank fills faster than the water drops into the boiler the filling process will take place with short intervals 1 3 4 Heating Now that the system has been filled with water Fig 1 3A the heating element is switched on by a separate mechanical relay The temperature sensor Fig 1 3C which is on the outside of the boiler measures the actual temperature of the water The temperature sensor ensures that the water in the boiler is heated to the desired temperature A thermometer flashes on the LCD display during the heating phase This indicates that the machine is not yet ready for use The temperature sensor is an NTC Negative Temperature Coefficient thermistor The higher the measured temperature the lower the sensor s resistance Hot water has a lower specific weight than cold water As a result the hot water in the boiler will not flow back to the float tank through the siphon hose at the bottom That part of the system will therefore remain cold This is very important because the parts in the float tank are sensitive to limescale The temperature sensor is on the outside of the boiler As a result there is no feed through in the wall meaning that the system will not leak over time This measurement is less direct That is why the temperature
27. that is driven by the canister motor Pressing the start button starts the canister motor after a certain delay This motor drives a worm which transports the ingredient to the canister s outlet The controls for the canister motor enable the timing and the dosing speed to be controlled independently This enables ingredients to enter the mixing chamber while the water is flowing The canister motor will stop a little sooner than the water in order to rinse the mixing beaker The canister will use springs based on the type of ingredient These springs reduce the amount of tunnel formation meaning the sticking of ingredients to the walls 1 5 Mixing system The mixing unit Fig 15 mixes the hot water and the ingredient When a selection button is pressed the water is dosed in the mixing chamber after a slight delay The product falls into the mixing chamber Depending on the selected drink the mixer starts rotating at a certain number of revolutions per minute There is a exhaust hood on top of the mixing chamber Fig 14 This cover has an opening at the back that the plates press into an exhaust outlet This exhaust system ensures that steam from the mixing chamber does not reach the ingredient canister outlet Fig 16 shows an example of an exhaust system that can be used for three mixing systems E Fig 14 Mixing unit Fig 16 Steam exhaust system for three mixing Fig 15 Exhaust hood 1 6 Ve
28. utton for descaling program eens be deans 34 Descaling pictogram 35 Program button Closed door 00 e nent ene nnes OMDANNNOOOOTUHAGARARR A ADH AaB a mk 2 Sk aeaonnanaa a tkt A A RAR ONO 1 OPERATING PRINCIPLE 1 1 General operation The machine works according to a pump system developed by Bravilor Bonamat This system has the following advantages The componenis that ensure that the water is dosed properly are in the cold water circuit This reduces the main cause of failures namely the formation of limescale on the dosing valves to a minimum e The float that regulates the water level is also in the cold water circuit This also reduces scaling to a minimum 1 2 Water dosing system Pressing a selection button triggers the pump motor which has a controlled time and speed The pump rotor moves a certain amount of cold water from the cold water reservoir to the bottom of the boiler This pushes the hot water in the boiler upwards towards the water selector This selector selects its position by means of a rotating movement Depending on the selected drink an ingredient is dosed and mixed in the mixing chamber with the dosed water before flowing into the cup Fig 1 Water dosing system The water dosing system consists of the following main components 1 Solenoid valve 2
29. uum time S2 for mugs The housing lowers so the coffee extract can be sucked through the filter paper Before the coffee extract exits the brewer the housing stops again S2 to extract as much liquid from the coffee residue as possible and produce a dry cake of coffee This time does not affect the taste 26 2 Vacuum time S2 for jugs The housing lowers so the coffee extract can be sucked through the filter paper Before the coffee extract exits the brewer the housing stops again S2 to extract as much liquid from the coffee residue as possible and produce a dry cake of coffee This time does not affect the taste 17 I BRAVILOR BONAMAT 27 Maximum extra mixing bypass fthe cup holds more than 170 ml the drink will be mixed in several cycles because of the capacity of the brewer cylinder For example for a cup that holds 220 ml the first cycle is dosed at 170 ml and the second at 50 ml If the setting for maximum extra mixing is changed e g from 170 ml to 200 ml 170 ml of water will be dosed first in the brewer together with lots of ingredient Once the strong FreshBrew coffee has been dosed 30 ml of water are added through the bypass The result is 200 ml of coffee 170 ml of strong coffee 30 ml of hot water 28 Pricing Set the desired price 29 General selection screen 30 Programming drink dependent 31 Dose for cups drink dependent Set the amount of water in ml The software translate
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