Bunn Dual TF DBC manual

BUNN-O-MA TIC CORPORA TION POST OFFICE BOX 3227 SPRINGFIELD, ILLINOIS 62708-3227 PHONE: (217) 529-6601 F AX: (217) 529-6644 www .bunnomatic.com INST ALLA TION & OPERA TING MANU AL DUAL ™ TF DBC ™ WITH SMAR T FUNNEL ® 35058.0001A 07/05 ©2005 Bunn-O-Matic Corporation S/N DUAL068000 & UP[...]

Page 2 BUNN-O-MA TIC COMMERCIAL PRODUCT W ARRANTY Bunn-O-Matic Corp. (“BUNN”) warrants equipment manufactured by it as follows: 1) All equipment other than as specifi ed 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 years parts and [...]

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

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

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 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 a a b b c c d e f OPERA TING CONTROLS OPERA TING CONTROLS (a) 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 initiated does not change the brew batch in progress. Light indicates the selected bat[...]

Page 9 INITIAL SETUP CAUTION – The brewer must be disconnected from the power source throughout the initial setup, except when specifi ed in the instructions. 1. Insert an empty funnel into the funnel rails of one of the brew stations. 2. Place an empty server under the funnel. 3. Connect the brewer to the power source. W ater will begin fl owi[...]

Page 10 35058.1 071205 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 ?[...]

Page 11 GLOSSARY 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 to[...]

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 fl avors of coffee. Programming of the brewer is achieved by entering a certain fu[...]

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 PROGRAMMING THE BREWER (cont.) PROGRAM FUNCTIONS - LEVEL 2 There are three methods of programming the various brewing parameters of the Dual TF 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 memory . When a particular name of coffee is [...]

Page 15 LEVEL 1 Press upper right hidden switch for approximately 2 seconds, until the following screen appears. LEVEL 2 Press upper right hidden switch for approximately 4 seconds, until “UNITS” appears on screen. Returns to normal operating mode BREW LOCK OUT? NO DONE YES PROGRAM FLOW DIAGRAM LEFT<-<-<-<-<-<-RIGHT NO YES Ret[...]

Page 16 % BYP ASS XX (-) DONE (+) 3 BA TCHES DONE? NO YES SET PULSE BREW FULL 1/2 1/4 LEFT , SET ALL 3 BA TCHES FULL 1/2 1/4 RIGHT , SET ALL 3 BA TCHES 3 BA TCHES DONE? NO YES DRIP TIME X.XX (-) DONE (+) NO-NAME LEFT SETUP COMPLETE Continue to (B) (C)[...]

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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[...]

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Page 20 PROGRAMMING THE BREWER (cont.) 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 fi nished, press another batch size and re- peat step 8 for that size. Continue setting all batch sizes. 10. When fi nished setting all batch sizes, press and relea[...]

Page 21 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 CARD to load coffee names and bre[...]

Page 22 SET NEW RECIPE: If not using a Smart Funnel (with a sensor coil) and/or a G9-2T DBC or MHG Grinder , the brewer will func- tion as a standard Bunn Dual TF 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 automat[...]

Page 23 REVIEW RECIPES/MODIFY RECIPES/SET UP NO NAME COFFEE FLA VORS: 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, PRE-INFUSION TIMES and DRIP-OU[...]

Page 24 BREW OZ (SETTING OR ADJUSTING BREW VOL- UMES) This function allows adjustment of the brew vol- umes for each batch. The indicator signifi es 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[...]

Page 25 % BYP ASS This function allows adjustment of the amount of water that bypasses the grounds. The number signi- fi es the per centage of the brew volume which does not fl ow over the coffee grounds. Modifying recipes - bypass percentages: Range: 0% to 90% for all three batch sizes NOTE: If the brewer is already in the % BYP ASS screen, it i[...]

Page 26 SET PULSE BREW: This function allows the operator to program the brewer to "pulse” the sprayhead fl ow on and off during a brew cycle (start and stop the fl ow of water out of the sprayhead). This feature allows the ability to “fi ne-tune” the brewer for specifi c fl avor profi les. Pulse brewing can be set up for any and a[...]

Page 27 SET PULSE BREW (cont.) PROGRAMMING THE BREWER (cont.)[...]

Page 28 PROGRAMMING THE BREWER (cont.) SET PULSE BREW - EASY PULSE SETUP NOTE: The procedure to enter the PULSE BREW function must be performed prior to following the steps listed below . 1. The display should read BREW TIME: X.XX and a batch size indicator will be fl ashing. 2. Using (-) and (+), set the desired brew time for the selected batch s[...]

Page 29 PROGRAMMING THE BREWER (cont.) SET PULSE BREW - ENTER TIMES NOTE: The procedure to enter the PULSE BREW function must be performed 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 dis[...]

Page 30 PROGRAMMING THE BREWER (cont.) SET PREINFUSION: This function sets the brewer to turn the sprayhead fl ow on for a preset time (1st ON TIME) followed by a preset spray pause (OFF TIMES) and then turn the spray on continuously until the brew volume is completed. This is a special case of pulse brew . It is not pos- sible to set a batch size[...]

Page 31 PROGRAMMING THE BREWER (cont.) DRIP TIME (now displayed on "non" funnel lock units as well) This function allows the setting or modifi cation 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 d[...]

Page 32 COPY SETTINGS (NO NAME COFFEE SETTINGS ONL Y) This function is used to transfer all the brew set- tings from a NO NAME coffee fl avor programmed on one side of the brewer to the other side. A NO NAME coffee is a fl avor that is not in the grinder's memory or is what appears if a Smart Funnel ® is not used. For example, once the left[...]

Page 33 PROGRAMMING THE BREWER (cont.) 2. Press YES in this screen. The display should read LEFT ->->-> RIGHT . 3. If the initial programming was done on the left side of the brewer , press YES . The display will read ARE YOU SURE? 4. If you are sure that the data should be transferred from left to right, press YES . The display will then [...]

Page 34 Procedure to set ready temperature: 1. Press and hold upper right hidden switch until the display reads UNITS . Release switch. Continue to press and release switch until the display reads SET READY . 2. T o adjust the ready temperature, press the (-) button to decrease, or (+) to increase the ready temperature. 3. When fi nished, press an[...]

Page 35 release DONE to advance to next function screen, CALIBRA TE FLOW . Another alternative is to press and release either ON/OFF switch located on the front switch panel to exit the BYP ASS OZ/M func- tion and return to the MAIN SCREEN. CALIBRA TE FLOW This function allows the operator to enter the actual fl ow rate of the sprayhead and the by[...]

Page 36 PROGRAMMING THE BREWER (cont.) and release either ON/OFF switch located on the front switch panel to exit the CALIBRA TE FLOW function and return to the MAIN SCREEN. 9. Repeat steps 1 - 8 when calibrating the other side. CALIBRA TE FLOW (cont.) P2608[...]

Page 37 PROGRAMMING THE BREWER (cont.) P2609 LEFT OZ XX.X (-) DONE (+) NEW L BYPS FLO W XX.X OZ/M L or R Left or Right EXIT TO THE NEXT FUNCTION SCREEN COUNTS DOWN TO ZERO BREW PRESSED AFTER 1 MINUTE CALIBRA TE FLO W? NO YES CONT AINER RD Y? NO YES CALIBRA TE BYP ASS PRESS BREW ST AR T CALIBRA TE BYP ASS 60 SEC T O FINISH BYP ASS CAL? NO YES SPRA Y[...]

Page 38 PROGRAMMING THE BREWER (cont.) EXIT TO NEXT FUNCTION SCREEN EXIT TO NEXT FUNCTION SCREEN PRESS AND RELEASE ® SYMBOL PRESS AND RELEASE ® SYMBOL NEXT COMPONENT TO BE TESTED TEST OUTPUTS? NO YES TEST SWITCHES? NO YES LEFT BREW V AL VE ON NEXT OFF 125.0 KHZ. 4 4 125.0 KHZ. NO THING PRESSED TEST FREQUENCY? NO YES SER VICE T OOLS? NO YES P2610 [...]

Page 39 PROGRAMMING THE BREWER (cont.) SERVICE TOOLS (cont.) Procedure to test components (outputs): 1. Place brew funnels into rails on both sides of brewer . 2. Place a server beneath each brew funnel. 3. Press and hold the upper right hidden switch until display reads UNITS. Release the switch. Continue to press and release switch until SERVICE [...]

Page 40 SERVICE TOOLS (cont.) PROGRAMMING THE BREWER (cont.) 9. After all switches have been tested, press and re- lease the right hidden switch (®). This will return to TEST SWITCHES? . Press and release switch again to advance to TEST SERVERS? . Another alternative is to press and release either ON/OFF switch located on the front switch panel. T[...]

Page 41 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 Service Department. • Inspection, testing, and repair of electrical equipment should be performed only [...]

Page 42 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 fi nished. 1. Brew funnel was moved out of position after the brew cycle was started. (a) Wait for the brewer to heat[...]

Page 43 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 44 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 emperature Sensor Probe wire(s) broken or not making connection. 1. T emperature Sensor Probe wire(s) shorted to housing, or to each other . Check water supply shut-off[...]

Page 45 Equipment will not operate. Brew cycle will not start. Automatic refi ll 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 confi rm that it m[...]

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

Page 47 TROUBLESHOOTING (cont.) Problem Possible Cause T roubleshooting Procedures Check the sensitivity setting. Refer to the Refi ll function. If the left three digit number is less than the right number , the machine “thinks” it is full and the refi ll valve should be off. If the left number is larger than the right, then the refi ll valv[...]

Page 48 Water will not heat or display shows HEA TING TIME TOO LONG (cont.) Spitting or unusual steaming from sprayhead or air vents. (Water too hot) 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[...]

Page 49 TROUBLESHOOTING (cont.) Problem Possible Cause T roubleshooting Procedures Perform the previous procedure for testing triacs. If the voltage measured is very low or zero, then substitute a control board known to be in good working order . (A) Direction of fl ow arrow must be pointing towards the brewer . (B) Remove the strainer and check f[...]

Page 50 TROUBLESHOOTING (cont.) Problem Possible Cause T roubleshooting Procedures Adjust the brew volume as required to achieve the recommended volume for each brew cycle. Repair or replace leaky valve. BUNN paper fi lters should be used for proper extraction. Check sprayhead The brew cycle should be started only with an empty server under the fu[...]

Page 51 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 Plumbing lines should not be resting on the counter top. (A) The brewer must[...]

Page 52 34916.0000A 10/02 © 2002 B unn -O-Matic Co r po r atio n 120/240 OR 120/20 8 VOL T A.C. SINGLE PHASE SCHEMA TIC WIRING DIAGRAM DUAL TF DBC BREWWISE N L2 RIGHT TANK HEATER LEFT TANK HEATER S WITCH UNIT A SS Y R E D - 1 4 C5 C4 C6 WHI REFILL R. BYPA SS S OL S OL S OL WHI WHI WHI WHI L. BREW R. BREW L. BYPA SS R. FUNNEL LOCK L. FUNNEL LOCK S [...]

Page 53 34916.0001B 03/03 © 2002 B unn -O-Matic Co r po r atio n 120/240 OR 120/20 8 VOL T A.C. 4 WIRE 3-PHASE SCHEMA TIC WIRING DIAGRAM DUAL TF DBC BREWWISE CONTACTOR WHI WHI WHI WHI WHI WHI K LEFT LIMIT THERMO S TAT RIGHT LIMIT THERMO S TAT RIGHT TANK HEATER LEFT TANK HEATER R E D - 1 4 B L U - 1 4 L2 L3 N CENTER LIMIT THERMO S TAT MT1 BLU-14 MT[...]

Page 54 34 8 39.0000A 06/03 © 2003 B unn -O-Matic Co r po r atio n 200/230 VOL T A.C. 2 WIRE SINGLE PHASE SCHEMA TIC WIRING DIAGRAM DUAL TF DBC BREWWISE RIGHT LIMIT THERMO S T AT (1/2) LEFT LIMIT THERMO S T AT (1/2) RIGHT LIMIT THERMO S T AT (1/2) LEFT LIMIT THERMO S T AT (1/2) RED RED RED RED RED RED L2 RED BLK BLK-14 BLK-14 BLK-14 BLK-14 L2 L1 L[...]

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