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Bunn S/N SNG0033000 & UP manual

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Table of contents for the manual

  • Page 1

    BUNN-O-MA TIC CORPORA TION POST OFFICE BOX 3227 SPRINGFIELD, ILLINOIS 62708-3227 PHONE: (217) 529-6601 F AX: (217) 529-6644 T o ensure you have the latest revision of the manual or to obtain the illustrated parts catalog, please visit the Bunn-O-Matic website, at www .bunn.com. This is absolutely FREE, and the quickest way to obtain the latest cata[...]

  • Page 2

    Page 2 35879.1 011108 BUNN-O-MA TIC COMMERCIAL PRODUCT WARRANTY Bunn-O-Matic Corp. (“BUNN”) warrants equipment manufactured by it as follows: 1) All equipment other than as specified below: 2 years parts and 1 year labor . 2) Electronic circuit and/or control boards: parts and labor for 3 years. 3) Compressors on refrigeration equipment: 5 yea[...]

  • Page 3

    Page 3 T ABLE OF CONTENTS User Notices ...............................................................................................................................4 Electrical .....................................................................................................................................5 Plumbing Requirements ..............[...]

  • Page 4

    Page 4 USER NOTICES The notices on this brewer should be kept in good condition. Replace unreadable or damaged labels. 35879.1 011108 00656.0000 00831.0000 00658.0000 20201.5600 37881.0000 03408.0004 03409.0004 27508.0000 This equipment must be installed to comply with the International Plumbing Code of the International Code Council and the Food C[...]

  • Page 5

    Page 5 35879.1 110507 ELECTRICAL HOOK-UP WARNING – If the power cord is ever damaged, it must be replaced by the manufacturer or authorized ser vice personel with a special cord available from the manufacturer or its authorized ser vice personel in order to avoid a hazard. Improper electrical installation will damage electronic components. Damage[...]

  • Page 6

    Page 6 L1, L2, L3, are the 3 phases V1 = Phase to phase voltage, between any 2 phases. V2 = Phase to neutral voltage, L1 to neutral must be 120V . SYSTEM VOL T AGE V1 V2 208 208 120 240 240 120 CAUTION: Do not connect L1 to a circuit operating at more than 150 volts to ground. 200 and 230 volt ac single phase, 60 Hz models Note: This electrical ser[...]

  • Page 7

    Page 7 PLUMBING REQUIREMENTS This brewer must be connected to a cold water system with operating pressure between 20 and 90 psi (138 and 620 kPa) from a 1 ⁄ 2 " or larger supply line. A shut-off valve should be installed in the line before the brewer . Install a regulator in the line when pressure is greater than 90 psi (620 kPa) to reduce i[...]

  • Page 8

    Page 8 (a) MAIN ON/OFF SWITCH This switch, located under the brewer behind the front leg, turns power on and off to all components in the brewer . (b) BA TCH SELECTOR SWITCHES Pressing the switch corresponding to the Small, Medium, or Large batch selects the amount of coffee to be brewed. Pressing a different switch after a brew cycle has been init[...]

  • Page 9

    Page 9 INITIAL SETUP CAUTION – The brewer must be disconnected from the power source throughout the initial setup, except when specified in the instructions. 1. Insert an empty funnel into the funnel rails of the brew station. 2. Place an empty server under the funnel. 3. Connect the brewer to the power source. Water will begin flowing into the[...]

  • Page 10

    Page 10 CLEANING 1. The use of a damp cloth rinsed in any mild, nonabrasive, liquid detergent is recommended for cleaning all surfaces on Bunn-O-Matic equipment. Do NOT clean this equipment with a water jet device. 2. Check and clean each sprayhead. The sprayhead holes must always remain open. NOTE: Any buildup on the sprayhead and fitting may res[...]

  • Page 11

    Page 11 GLOSSAR Y AD CARD: An assembly consisting of computer chips and an instruction label. Used for loading advertising messages into the brewer . BREW LOCKOUT : The inability to initiate a brew if the water temperature is less than the ready temperature programmed into the brewer . BYP ASS: The process of diverting a portion of the brew water t[...]

  • Page 12

    Page 12 PROGRAMMING Using the menu-driven display on the front of the brewer , the operator has the ability to alter or modify various brewing parameters such as brew temperatures, brew volumes, bypass percentages, etc. This allows for the precise brewing of various flavors of coffee. Pro grammi ng of the brew er is achie ved by ente ring a cert a[...]

  • Page 13

    Page 13 MAIN SCREEN This screen will be shown when the brewer is ready for use. The screen displays the water temperature in the tank. When the water in the tank reaches the correct set temperature, the display will change from HEA TING to READY TO BREW . PROGRAMMING LOCKOUT SWITCH (mounted on main control board) This switch can be set to prevent a[...]

  • Page 14

    Page 14 PROGRAMMING THE BREWER (cont.) PROGRAM FUNCTIONS - LEVEL 2 There are three methods of programming the various brewing parameters of the Single TF DBC with Smart Funnel Brewer . METHOD 1: Using a Smart Funnel and a G9-2T DBC or MHG Grinder: Certain coffee NAMES are stored in the G9-2T DBC or MHG's memor y . When a particular name of cof[...]

  • Page 15

    Page 15 PROGRAMMING THE BREWER (cont.) LEVEL I Press upper right hidden switch for approximately 2 seconds, until the following screen appears. LEVEL II Press upper right hidden switch for approximately 4 seconds, until “UNITS” appears on screen. Retur ns to (A) REVIEW RECIPES? NO YES NO-NAME MODIFY SHOW NEXT BREW OZ X.XX (-) DONE (+) (B) Conti[...]

  • Page 16

    Page 16 Continues to (E) (D) ENABLE ADS? NO DONE YES SET TEMP: 200°F (-) DONE (+) SET READY 195°F (-) DONE (+) 0 REFILL 155 (-) DONE (+) SPRY OZ/M XX.X (-) DONE (+) BYP AS OZ/M XX.X (-) DONE (+) % BYP ASS XX (-) DONE (+) 3 BA TCHES DONE? NO YES SET PULSE BREW FULL 1/2 1/4 3 BA TCHES DONE? NO YES DRIP TIME X.XX (-) DONE (+) (C) EASY PULSE SETUP NO[...]

  • Page 17

    Page 17 CALIBRA TE FLOW? NO YES BREW COUNTERS? NO YES FUNNEL DETECT NO DONE YES SERVICE TOOLS NO YES SEL BREWER TYPE? NO YES (E) FINISHED, returns to main screen COUNT 0 NEXT RESET COUNT 0 NEXT TEST OUTPUTS? NO YES TEST SWITCHES? NO YES BREW V AL VE ON NEXT OFF FUNNEL LOCK ON NEXT OFF REFILL V AL VE ON NEXT OFF HEA TER CONT ACTOR ON NEXT OFF SPRA Y[...]

  • Page 18

    Page 18 UNITS METRIC DONE ENG CHANGING UNITS WILL!! ERASE!! ALL PREVIOUSL Y ST ORED RECIPES AND ALL SETUP INFO WIL BE LOST! ARE Y OU SURE? YES NO SELECTS METRIC AS THE UNIT OF MEASURE REPLACE EXIT SELECTS ENGLISH AS THE UNIT OF MEASURE UNITS (SETTING UNITS OF MEASURE) This function allows the units of measure to be set in English or Metric readings[...]

  • Page 19

    Page 19 Procedure for Setting the Recipe: NOTE: Before beginning setup, place a ser ver beneath the brew funnel. 1. Insert the funnel into the grinder and select a batch siz e to grin d. It is not nec essa ry t o have cof fee bea ns in the hopper(s) in order to program the brewer . The coffee name is pre-selected and stored in the grinder's me[...]

  • Page 20

    Page 20 SET NEW RECIPES (cont.) 8. Using (-) and (+) , set the amount of brew water , in ounces, to be dispensed for that particular batch size. 9. When finished, press another batch size and re- peat step 8 for that size. Continue setting all batch sizes. 10. When finished setting all batch sizes, press and release DONE . The display should read[...]

  • Page 21

    Page 21 PROGRAMMING THE BREWER (cont.) POSITION CARD UNDER THE LEFT SIDE SENSOR COIL (COFFEE NAME) SHOW QUIT SA VE CARD CONT AINS RECIPE FOR READY TO BREW WA TER TEMP: 200º (COFFEE NAME) SETUP COMPLETE (COFFEE NAME) NOT SA VED SCROLLS THROUGH ALL OF THE BREW SETTINGS FOR THE THREE BA TCH SIZES FOR THA T COFFEE NAME SET NEW RECIPE Using a RECIPE CA[...]

  • Page 22

    Page 22 SET NEW RECIPE: If not using a Smar t Funnel (with a sensor coil) a nd/or a G9-2T DBC or MHG Grinde r , the brewer will functio n as a standard Bunn Single TF DBC Brewer: It is possible to operate the brewer without using a Smart Funnel and/or a G9-2T DBC or MHG Grinder . If a standard funnel, or if a non-DBC grinder is used the brewer will[...]

  • Page 23

    Page 23 REVIEW RECIPES/MODIFY RECIPES/SET UP NO NAME COFFEE NAMES: This function has three parts. It allows the operator to view the brew settings for the various coffee names programmed into the brewer . It also allows the operator to modify (change) any of the BREW VOLUMES, BYP ASS PERCENT AGES, PULSE BREW TIMES and DRIP-OUT TIMES for a particula[...]

  • Page 24

    Page 24 BREW OZ (SETTING OR ADJUSTING BREW VOL- UMES) This function allows adjustment of the brew vol- umes for each batch. The indicator signifies volume in ounces per batch. Procedure for modifying recipes - brew ounces: Range: 10.0 oz to 400 oz for all three batch sizes 1. Press and hold the upper right hidden switch until the display reads UNI[...]

  • Page 25

    Page 25 P2444 PROGRAMMING THE BREWER (cont.) % BYP ASS This function allows adjustment of the amount of water that bypasses the grounds. The number signi- fies the per centage of the brew volume which does not flow over the coffee grounds. Modifying recipes - bypass percentages: Range: 0% to 90% for all three batch sizes NOTE: If the brewer is al[...]

  • Page 26

    Page 26 PROGRAMMING THE BREWER (cont.) SET PULSE BREW: This function allows the operator to program the brewer to "pulse” the sprayhead flow on and off con- tinually during a brew cycle (start and stop the flow of water out of the sprayhead). This feature allows the ability to “fine-tune” the brewer for specific flavor profiles. Pu[...]

  • Page 27

    Page 27 SET PULSE BREW (cont.) PROGRAMMING THE BREWER (cont.) EXIT TO NEXT FUNCTION SCREEN PRESS DONE YES DONE YES SCREEN DISPLA YED BREW OZ: XX.XX 3 BA TCHES DONE? % BYP ASS XX.X 3 BA TCHES DONE? ADV ANCES TO ALL OTHER COFFEE NAMES PROGRAMMED IN THE BREWER'S MEMORY WHEN THE LAST COFFEE NAME IN THE BREWER'S MEMORY IS DISPLA YED, PRESSING [...]

  • Page 28

    Page 28 PROGRAMMING THE BREWER (cont.) P3507 5 SEC. DELA Y SET PULSE BREW? NO YES 3 BA TCHES DONE? NO YES 3 BA TCHES DONE? NO YES COFFEE NAME SETUP COMPLETE BREW TIME XX.X (-) DONE (+) DRIP TIME XX.X (-) DONE (+) 1st OFF LAST XX.X XX.X XX.X EASY PULSE SETUP NO YES ENTER TIMES ? NO YES See SET PULSE BREW- ENTER TIMES SET PULSE BREW - EASY PULSE SETU[...]

  • Page 29

    Page 29 PROGRAMMING THE BREWER (cont.) SET PULSE BREW - ENTER TIMES NOTE: The procedure to enter the PULSE BREW function must be per formed prior to following the steps listed below . 1. Press and release YES . The display should now read EASY PULSE SETUP . 2. Press and release NO . The display will read ENTER TIMES? 3. Press YES to proceed. The di[...]

  • Page 30

    Page 30 PROGRAMMING THE BREWER (cont.) SET PULSE BREW? NO YES ENTER TIMES? NO YES EASY PULSE SETUP NO YES 1st ON TIME X:XX (-) DONE (+) OFF TIMES: X:XX (-) DONE (+) LAST ON: PreI (-) DONE (+) 3 BA TCHES DONE? NO YES EXIT TO NEXT FUNCTION SCREEN EXIT TO NEXT FUNCTION SCREEN 5 SEC. DELA Y 1st OFF LAST XX.X XX.X PreI SET PREINFUSION: This function set[...]

  • Page 31

    Page 31 PROGRAMMING THE BREWER (cont.) DRIP TIME (now displayed on "non" funnel lock units as well) This function allows the setting or modification of the funnel locks to stay engaged after the end of a brew cycle. This ensures that the funnel cannot be removed until after the liquid has emptied out of the funnel. Procedure to modify dr[...]

  • Page 32

    Page 32 PROGRAMMING THE BREWER (cont.) ENABLE ADS? Thi s funct ion all ows the oper ator t o choos e wheth er or not to display the advertising message that was en- tered into the brewer with an AD CARD . This message will be displayed when the brewer is not in use. Procedure to Enable/Disable Ads : 1. Press and hold the upper right hidden switch u[...]

  • Page 33

    Page 33 PROGRAMMING THE BREWER (cont.) Procedure to set the sensitivity threshold of the refill circuit: NOTE: Make sure the water in the tank is touching the refill probe. 1. Press and hold the upper right hidden switch until the display reads UNITS . Release the switch, then press and release switch until the display reads REFILL and shows a nu[...]

  • Page 34

    Page 34 PROGRAMMING THE BREWER (cont.) Procedure to adjust the flow rate setting: 1. Press and hold the upper right hidden switch until the display reads UNITS . Release the switch, then press and release switch until the display reads BYP AS OZ/M . The number represents what the brewer thinks is the flow rate of the bypass valve in ounces per mi[...]

  • Page 35

    Page 35 PROGRAMMING THE BREWER (cont.) Procedures to calibrate the bypass flow rate: 1. Place a container , accurately graduated in ounces, and with a minimum capacity of 60 ounces, below the funnel on the brewer . 2. Press and hold the upper right hidden switch until the display reads UNITS .Release the switch, then press and release switch until[...]

  • Page 36

    Page 36 PROGRAMMING THE BREWER (cont.) BREW COUNTERS This function allows the operator to track the num- ber of brew cycles completed. There is one resettable counter , and one life counter that is not resettable. EXIT TO NEXT FUNCTION SCREEN XXXX NEXT RESET XXXX NEXT BREW COUNTERS? NO YES Procedures to view/reset the brew counters : 1. Press and h[...]

  • Page 37

    Page 37 PROGRAMMING THE BREWER (cont.) SERVICE TOOLS This function allows the testing of individual com- ponents and the ability to check switches for proper function. This function also tests the Soft Heat server's status on the brewer (in place or removed), and the funnel sensor coil's frequency (diagnostic tool for troubleshooting purp[...]

  • Page 38

    Page 38 to TEST SWITCHES . 7. Pressing NO in this screen will advance to the next function. Press YES in the TEST SWITCHES screen to test the switches. The display will read NOTHING PRESSED . 8. From this screen, press any of the switches on the front of the brewer . While the switch is pressed, the display shows the name of that switch. If the nam[...]

  • Page 39

    Page 39 PROGRAMMING THE BREWER (cont.) F ACTORY DEF AUL TS This function allows the operator to erase all of the previously entered recipes and ad messages. Factory- set default values will replace all previous settings. EXIT EXIT REPLACE WILL REPLA CE ALL BREW SETTINGS ARE Y OU SURE? NO YES F A CTOR Y DEF A U L T S NO YES ThermoF SoftHeat DONE SEL[...]

  • Page 40

    Page 40 TROUBLESHOOTING A troubleshooting guide is provided to suggest probable causes and remedies for the most likely problems encountered. If the problem remains after exhausting the troubleshooting steps, contact the Bunn-O-Matic T echnical Ser vice Department. • Inspection, testing, and repair of electrical equipment should be per formed onl[...]

  • Page 41

    Page 41 TROUBLESHOOTING (cont.) Screen Displayed Possible Cause T roubleshooting Procedures 1. Water temperature in the tank does not meet the SET READY TEMPERA TURE. 1. Brew funnel was not removed after the previous brew cycle was finished. 1. Brew funnel was moved out of position after the brew cycle was started. (a) Wait for the brewer to heat [...]

  • Page 42

    Page 42 TROUBLESHOOTING (cont.) T roubleshooting Procedures Possible Cause Screen Displayed 1. ON/OFF switch was pressed after the brew cycle was started. 1. T ank Heater failure 2. T riac Failure 3. Control Board/Thermistor failure T o resume brewing, press BREW again. The brew cycle resumes form the point it was interrupted. OR Press ON/OFF to te[...]

  • Page 43

    Page 43 TROUBLESHOOTING (cont.) T roubleshooting Procedures Possible Cause Screen Displayed 1. Water shut off to brewer 2. Inlet Solenoid Valve failure 3. Control Board Failure 1. T emp erat ure Sen sor Probe w ire( s) broken or not making connection. 1. T emperature Sensor Probe wire(s) shorted to housing, or to each other . Check water supply shu[...]

  • Page 44

    Page 44 Equipment will not operate. Brew cycle will not start. Automatic refill will not operate or display shows FILL TIME TOO LONG 1. No power or incorrect voltage. 1. No water 2. ON/OFF switch 3. Brew switch 4. Brew Valve 5. Electronic Control Board 1. No water 2. Water strainer Measure the voltage at the terminal block and confirm that it mat[...]

  • Page 45

    Page 45 T roubleshooting Procedure TROUBLESHOOTING (cont.) Problem Possible Cause Check the sensitivity setting. Refer to the Refill function. If the left three digit number is less than the right number , the machine “thinks” it is full and the refill valve should be off. If the left number is larger than the right, then the refill valve wi[...]

  • Page 46

    Page 46 TROUBLESHOOTING (cont.) Problem Possible Cause T roubleshooting Procedures Check the sensitivity setting. Refer to the Refill function. If the left three digit number is less than the right number , the machine “thinks” it is full and the refill valve should be off. If the left number is larger than the right, then the refill valve w[...]

  • Page 47

    Page 47 TROUBLESHOOTING (cont.) Problem Possible Cause T roubleshooting Procedures Remove power from the brewer . Connect a voltmeter across one of the tank heaters. Reapply power to the brewer and refer to T esting Individual Components . If the full supply voltage is measured when the tank heater is turned on, and zero voltage is measured with th[...]

  • Page 48

    Page 48 TROUBLESHOOTING (cont.) Problem Possible Cause T roubleshooting Procedures Perform the previous procedure for testing triacs. If the voltage measured is ver y low or zero, then substitute a control board known to be in good working order . (A) Direction of flow arrow must be pointing towards the brewer . (B) Remove the strainer and check f[...]

  • Page 49

    Page 49 TROUBLESHOOTING (cont.) Problem Possible Cause T roubleshooting Procedures Adjust the brew volume as required to ach ieve the re comm ended v olume for each brew cycle. Repair or replace leaky valve. BUNN paper filters should be used for proper extraction. Check sprayhead The brew cycle should be started only with an empty ser ver under th[...]

  • Page 50

    Page 50 TROUBLESHOOTING (cont.) Problem Possible Cause T roubleshooting Procedures Consider adjusting bypass percent- age, preinfusion, or pulse brew . Contact Bunn-O-Matic for sugges- tions. The nut on back of the solenoid must be tight or it will vibrate during operation Plumbin g lines should not be re sting on the counter top. (A) The brewer mu[...]

  • Page 51

    Page 51 35726.0000B 02/07 © 2003 Bunn-O-Matic Corporation 120/208 OR 120/240 VOL T A.C. 3 WIRE + GND SINGLE PHASE SCHEMA TIC WIRING DIAGRAM SINGLE TF DBC FUNNEL LOCK SOL BREW BYPASS REFILL WHI WHI WHI VIO GRY WHI/GRN BRN/WHI BRN/BLK TA N YEL BLK WHI T ANK HEATER TRIAC MT 1 BLU-14 BLK-14 BLK-14 MT2 LIMIT THERMOS TA T FUNNEL SENSOR WHI/VIO VIO WHI P[...]

  • Page 52

    Page 52 36883.0000A 05/04 © 2004 Bunn-O-Matic Corporation 230 OR 200 VOL T A.C. SINGLE PHASE SCHEMA TIC WIRING DIAGRAM SINGLE TF DBC FUNNEL LOCK SOL SOL SOL SOL BREW BYPASS REFILL RED RED RED VIO GRY WHI/GRN BRN/WHI BRN/BLK TA N YEL BLK RED L2 T ANK HEATER TRIAC MT 1 BLU-14 RED-14 BLK-14 BLK-14 RED-14 BLK-14 RED-14 BLK-14 MT2 L1 LIMIT THERMOS TAT [...]

  • Page 53

    Page 53 36883.0002A 11/04 © 2004 Bunn-O-Matic Corporation 120 VOL T A.C. 2 WIRE SINGLE PHASE 60HZ SCHEMA TIC WIRING DIAGRAM SINGLE TF DBC FUNNEL LOCK SOL SOL SOL SOL BREW BYPASS REFILL WHI WHI WHI VIO GRY WHI/GRN BRN/WHI BRN/BLK TA N YEL BLK WHI N T ANK HEATER TRIAC MT 1 BLU-14 WHI-14 BLK-14 BLK-14 MT2 L1 LIMIT THERMOS TAT FUNNEL SENSOR WHI/VIO VI[...]

  • Page 54

    Page 54 36883.0001B 02/07 © 2004 Bunn-O-Matic Corporation 200,208 or 240 VOL T A.C. 2 WIRE + GND SINGLE PHASE 50/60HZ SCHEMA TIC WIRING DIAGRAM SINGLE TF DBC FUNNEL LOCK SOL BREW BYPASS REFILL RED RED RED VIO GRY WHI/GRN BRN/WHI BRN/BLK TA N YEL BLK RED T ANK HEATER TRIAC MT 1 BLU-14 RED-14 BLK-14 BLK-14 MT2 LIMIT THERMOS TA T FUNNEL SENSOR WHI/VI[...]