Bunn Dual TF BrewWISE DBC Installation And Operating Manual
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Bunn Dual TF BrewWISE DBC Installation And Operating Manual

Bunn dual tf brewwise dbc: operating manual
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DUAL
TF DBC
®
®
WITH SMART FUNNEL
®
S/N DUAL068000 & UP
INSTALLATION & OPERATING MANUAL
BUNN-O-MATIC CORPORATION
POST OFFICE BOX 3227
SPRINGFIELD, ILLINOIS 62708-3227
PHONE: (217) 529-6601 FAX: (217) 529-6644
To 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 catalog and manual updates. Contact Bunn-O-Matic
Corporation at 1-800-286-6070 to obtain a paper copy of the required Illustrated Parts Catalog mailed via U.S. Postal Service.
www.bunn.com
35058.0001C 11/07 ©2005 Bunn-O-Matic Corporation

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  • Page 1 PHONE: (217) 529-6601 FAX: (217) 529-6644 To 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 catalog and manual updates. Contact Bunn-O-Matic Corporation at 1-800-286-6070 to obtain a paper copy of the required Illustrated Parts Catalog mailed via U.S.
  • Page 2 AS SPECIFIED HEREIN, TO REPAIR, REPLACEMENT OR REFUND. In no event shall BUNN be liable for any other damage or loss, including, but not limited to, lost profits, lost sales, loss of use of equipment, claims of Buyer’s customers, cost of capital, cost of down time, cost of substitute equipment, facilities or services, or any other special, incidental or consequential damages.

  • Page 3: Table Of Contents

    User Notices ...4 Electrical ...5 Plumbing Requirements ...7 Operating Controls ...8 Initial Setup ...9 Coffee Brewing ...9 Cleaning ...10 Glossary ...11 PROGRAMMING ...12 Programming Switches ...12 Programming the Brewer ...13 PROGRAM FUNCTIONS (LEVEL 1) Brew Lockout ...13 PROGRAM FUNCTIONS (LEVEL 2) ...14 PROGRAM FUNCTIONS (FLOW) ...15 Set Units (Setting units of measure) ...18 Set New Recipe (using a Smart Funnel and G92T DBC or MHG Grinder) ...19...

  • Page 4: User Notices

    USER NOTICES The notices on this brewer should be kept in good condition. Replace unreadable or damaged labels. 00658.0000 00831.0000 27508.0000 00656.0000 03408.0004 37881.0000 03409.0004 20201.5600 Page 4 35058.1 042007...

  • Page 5: Electrical

    USER NOTICES (cont.) To reduce the risk of electric shock, do not remove or open cover. No user-serviceable parts inside. ELECTRICAL REQUIREMENTS (Models with power cord) WARNING - The brewer must be disconnected from the power source until specified in Initial Set-Up. Refer to Data Plate on the Brewer, and local/national electrical codes to determine circuit requirements.
  • Page 6 ELECTRICAL REQUIREMENTS (Models without power cord) WARNING - The brewer must be disconnected from the power source until specified in Initial Set-Up. Refer to Data Plate on the Brewer, and local/national electrical codes to determine circuit requirements. 200 or L1 BLACK 230V L2 RED GREEN...

  • Page 7: Plumbing Requirements

    NOTE – Bunn-O-Matic recommends coil of copper tubing in the water line will facilitate moving the brewer to clean the counter top. Bunn-O-Matic does not recommend the use of a saddle valve to install the brewer. The size and shape of the hole made in the supply line by this type of device may restrict water flow.

  • Page 8: Operating Controls

    These are used to "receive" information from the Smart Funnel handle (coffee name and batch size), and also from RECIPE CARDS. (j) SCROLL BACKWARDS The upper left corner of the B in BUNN can be used to scroll backwards through the function list. OPERATING CONTROLS Page 8...

  • Page 9: Initial Setup

    7. The brewer is now ready for use in accordance with the coffee brewing instructions. 1. Insert a BUNN filter into the Smart Funnel. 2. If a grinder is not used to obtain the coffee grounds, pour the proper amount of fresh coffee grounds into the funnel and level by gently shaking.

  • 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.

  • 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. BYPASS: The process of diverting a portion of the brew water to the outside of the paper filter so that it does not pass through the coffee grounds.

  • Page 12: Programming

    This is used to access the programming mode and is also used to scroll forward through the function list. 2. Upper left corner of the "B" in the BUNN logo This is used to scroll backwards through the function list.

  • Page 13: Programming Lockout Switch

    The programming of the brewer is divided into two levels. There is one function in Level 1. All other functions are accessed in Level 2. The following function screens are in order of appearance. Each screen will have instructions on how to access, and the procedures to program the various functions of the brewer.

  • Page 14: Program Functions (Level 2)

    DON'T KNOW YOU WILL ENTER THE NO NAME LEFT AND NO NAME RIGHT BREW SETTINGS Page 14 GO TO SET NEW RECIPE, AND FOLLOW THE INSTRUCTIONS REFER TO NAME LIST IN GRINDER MANUAL CONTACT BUNN-O-MATIC FOR ASSISTANCE P2369 35058.1 071205...

  • Page 15: Program Functions (Flow)

    PROGRAMMING THE BREWER (cont.) PROGRAM FLOW DIAGRAM Press upper right hidden switch for approximately 2 seconds, until the following screen appears. Press upper right hidden switch for approximately 4 seconds, until “UNITS” appears on screen. Sets unit of Sets unit of UNITS measure to measure to...
  • Page 16 PROGRAMMING THE BREWER (cont.) PROGRAM FLOW DIAGRAM (Cont.) LEFT, FULL BYPASS SET ALL 3 DONE BATCHES 3 BATCHES DONE? LEFT, FULL SET PULSE BREW SET ALL 3 BATCHES X:XX LEFT, DRIP TIME X.XX FULL SET ALL 3 DONE BATCHES 3 BATCHES DONE? NO-NAME LEFT NO-NAME RIGHT SETUP COMPLETE...
  • Page 17 PROGRAMMING THE BREWER (cont.) PROGRAM FLOW DIAGRAM (Cont.) L BYPS OZ/M XX.X DONE R BYPS OZ/M XX.X DONE CALIBRATE FLOW? BREW COUNTERS? FUNNEL DETECT DONE SERVICE TOOLS SEL BREWER TYPE? ThermoF SoftHeat DONE FACTORY DEFAULTS FINISHED, returns to main screen SPRAY HEAD CAL? BYPASS CAL? CONTAINER RDY?

  • Page 18: Set Units (Setting Units Of Measure)

    PROGRAMMING THE BREWER (cont.) UNITS (SETTING UNITS OF MEASURE) This function allows the units of measure to be set in English or Metric readings for all screens. The program is defaulted to English. WARNING: Changing the unit of measure will erase all coffee recipes stored in memory.

  • Page 19: Set New Recipe (Using A Smart Funnel And G92T Dbc Or Mhg Grinder)

    PROGRAMMING THE BREWER (cont.) SET NEW RECIPE Using a Smart Funnel and a G9-2T DBC or MHG Grinder: This function allows operator to set BREW VOL- UMES, BYPASS PERCENTAGES, PULSE BREW TIMES, PREINFUSION TIMES and DRIP-OUT TIMES for each coffee name preset in the grinder's memory. Certain coffee NAMES are stored in the grinder's memory.

  • Page 20: Set By-Pass Percentages

    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 finished, press another batch size and re- peat step 8 for that size. Continue setting all batch sizes.

  • Page 21: Set New Recipe (Using A Recipe Card)

    PERCENTAGES, PULSE BREW TIMES and DRIP-OUT TIMES for that particular coffee NAME. These can all be loaded in seconds. Contact Bunn-O-Matic Corporation for the avail- ability of RECIPE CARDS. NOTE: Instructions to program the brewer and grinder are printed on the RECIPE CARD, along with the coffee name that is being programmed.

  • Page 22: Set New Recipe (No Smart Funnel Nor G9-2T Dbc Grinder)

    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.

  • Page 23: Review Recipes/Modify Recipes/Set Up No Name Coffee

    PROGRAMMING THE BREWER (cont.) REVIEW RECIPES/MODIFY RECIPES/SET UP NO NAME COFFEE FLAVORS: 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, BYPASS PERCENTAGES, PULSE BREW TIMES, PRE-INFUSION TIMES and DRIP-OUT TIMES for a particular coffee name programmed into...

  • Page 24: Set Brew Volumes

    PROGRAMMING THE BREWER (cont.) 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.

  • Page 25: Review Recipes

    PROGRAMMING THE BREWER (cont.) % BYPASS This function allows adjustment of the amount of water that bypasses the grounds. The number signi- fies the percentage 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 already in the % BYPASS screen, it is not necessary to follow steps 1 through 6 in this...

  • Page 26: Set Pulse Brew Times

    PROGRAMMING THE BREWER (cont.) SET PULSE BREW: This function allows the operator to program the brewer to "pulse” the sprayhead flow on and off during a brew cycle (start and stop the flow of water out of the sprayhead). This feature allows the ability to “fine-tune”...
  • Page 27 PROGRAMMING THE BREWER (cont.) SET PULSE BREW (cont.) EXIT TO NEXT FUNCTION SCREEN SCREEN DISPLAYED BREW OZ: XX.XX 3 BATCHES DONE? % BYPASS XX.X 3 BATCHES DONE? SET PULSE BREW? EASY PULSE SETUP ENTER TIMES? See SET PULSE BREW- ENTER TIMES REVIEW RECIPES? NO-NAME LEFT MODIFYSHOWNEXT...

  • Page 28: Easy Pulse

    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 flashing. 2.

  • Page 29: Enter Times

    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.

  • Page 30: Set Preinfusion Times

    PROGRAMMING THE BREWER (cont.) SET PREINFUSION: This function sets the brewer to turn the sprayhead flow 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.

  • Page 31: Set Drip Times

    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.

  • Page 32: Assign Recipes

    PROGRAMMING THE BREWER (cont.) ASSIGN RECIPES This function allows for assigning a coffee name other than NO-NAME to the BREW switch. Procedure to assign recipes: 1. Press and hold the upper right hidden switch until the display reads UNITS. Release the switch. Press and release switch until the display reads ASSIGN RECIPE ?.

  • Page 33: Enable Ads

    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.

  • Page 34: Set Ready (Ready Temperature)

    PROGRAMMING THE BREWER (cont.) SET TEMP (cont.) 3. When finished, press and release DONE to save the new setting, exit the SET TEMP function and advance to the next function screen, SET READY. Another alternative is to press and release either ON/OFF switch located on the front switch panel to exit the SET TEMP function and return to the MAIN SCREEN.

  • Page 35: Bypass Oz/M (Read Bypass Flow Rate)

    PROGRAMMING THE BREWER (cont.) Procedure to adjust the flow rate setting: 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 L SPRY OZ/M. The number represents what the brewer thinks is the flow rate of the sprayhead in ounces per minute.

  • Page 36: Calibrate Bypass Flow

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

  • Page 37: Calibrate Flow

    PROGRAMMING THE BREWER (cont.) CALIBRATE FLOW? EXIT TO THE NEXT FUNCTION SCREEN SPRAYHEAD CAL? BYPASS CAL? CONTAINER RDY? CALIBRATE BYPASS PRESS BREW START BREW PRESSED COUNTS DOWN CALIBRATE BYPASS TO ZERO 60 SEC TO FINISH AFTER 1 MINUTE LEFT OZ XX.X Left or Right DONE L or R...

  • Page 38: Funnel Detect

    PROGRAMMING THE BREWER (cont.) BREW COUNTERS (cont.) 5. When finished, press NEXT to advance counter screens until the display reads BREW COUN- TERS. Press and release NO to advance to the next function screen, or press and release either ON/OFF switch on the front switch panel to exit the BREW COUNTERS function and return to the MAIN SCREEN.

  • Page 39: Test Outputs (Components)

    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.

  • Page 40: Test Frequency

    PROGRAMMING THE BREWER (cont.) SERVICE TOOLS (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.

  • Page 41: Troubleshooting

    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 Technical Service Department. • Inspection, testing, and repair of electrical equipment should be performed only by qualified service personnel.
  • Page 42 TROUBLESHOOTING (cont.) Screen Displayed TEMPERATURE TOO LOW CHECK FUNNEL FOR FRESH COFFEE PRESS BREW TO BREW ANYWAY BREW STOPPED! FUNNEL REMOVED? TO FINISH: PRESS BREW TO CANCEL PRESS ON/OFF Possible Cause 1. Water temperature in the tank does not meet the SET READY TEMPERATURE.
  • Page 43 TROUBLESHOOTING (cont.) Screen Displayed BREW STOPPED! IS SWITCH OFF? TO FINISH: PRESS BREW TO CANCEL PRESS ON/OFF HEATING TIME TOO LONG CHECK HEATING CIRCUIT Possible Cause 1. ON/OFF switch was pressed after the brew cycle was started. 1. Tank Heater failure 2.
  • Page 44 TROUBLESHOOTING (cont.) Screen Displayed FILL TIME TOO LONG CHECK WATER SUPPLY TEMP SENSOR OUT OF RANGE CHECK FOR BAD CONNECTIONS TEMP SENSOR OUT OF RANGE CHECK WIRE FOR SHORTS Possible Cause 1. Water shut off to brewer 2. Inlet Solenoid Valve failure 3.
  • Page 45 TROUBLESHOOTING (cont.) Problem Equipment will not operate. Brew cycle will not start. Automatic refill will not operate or display shows FILL TIME TOO LONG Possible Cause 1. No power or incorrect voltage. 1. No water 2. ON/OFF switch 3. Brew switch 4.
  • Page 46 TROUBLESHOOTING (cont.) Problem Automatic refill will not operate or display shows FILL TIME TOO LONG (cont.) Water flows into tank continuously with power removed from brewer. Possible Cause 3. Refill Probe or Sensitivity Set- ting 4. Refill Valve 5. Overflow Protection Switch 6.

  • Page 47: Troubleshooting Procedures

    TROUBLESHOOTING (cont.) Problem Water flows into tank continuously with power applied to brewer. Water will not heat or display shows HEATING TIME TOO LONG Possible Cause 1. Refill Probe or Sensitivity Set- ting 2. Electronic Control Board 1. Limit Thermostat CAUTION - Do not eliminate or bypass limit thermostat.
  • Page 48 TROUBLESHOOTING (cont.) Problem Water will not heat or display shows HEATING TIME TOO LONG (cont.) Spitting or unusual steaming from sprayhead or air vents. (Water too hot) Possible Cause 3. Triac 4. Electronic Control Board 1. Triac 2. Lime Buildup CAUTION - Tank and tank compo- nents should be delimed regularly depending on local water condi-...
  • Page 49 TROUBLESHOOTING (cont.) Problem Spitting or unusual steaming from sprayhead or air vents. (Water too hot) (cont.) Inconsistent beverage level in server. Possible Cause 3. Electronic control board 1. Strainer 2. Improper water pressure 3. Brew Valve 4. Bypass Valve 5. Lime buildup Page 49 Troubleshooting Procedures Perform the previous procedure...
  • Page 50 Adjust the brew volume as required to achieve the recommended volume 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 server under the funnel.
  • Page 51 4. Tank Heaters. Page 51 Troubleshooting 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.

  • Page 52: Schematic Wiring Diagram

    MT 1 RIGHT BLU-14 TANK HEATER TRIAC LEFT MT 1 BLU-14 RED-14 TANK HEATER REFILL R. BYPASS L. BYPASS R. BREW L. BREW N.C. OVERFLOW PROTECTON SWITCH L. FUNNEL LOCK R. FUNNEL LOCK 34916.0000B 02/07 © 2002 Bunn-O-Matic Corporation 35058.1 042007...
  • Page 53 (Late Models only) BLK-14 BLK-14 BLK-14 RED-14 RED-14 RED-14 BLU-14 BLU-14 BLU-14 REFILL CONTACTOR R. BYPASS L. BYPASS R. BREW L. BREW N.C. OVERFLOW PROTECTION SWITCH L. FUNNEL LOCK R. FUNNEL LOCK 34916.0001C 02/07 © 2002 Bunn-O-Matic Corporation 35058.1 042007...
  • Page 54 Page 54 35058.1 042007...
  • Page 55 ~78% Reduction Page 55 TRIAC RIGHT BLU-14 RED-14 TANK HEATER LEFT RED-14 TANK HEATER REFILL R. BYPASS L. BYPASS R. BREW L. BREW N.C. OVERFLOW PROTECTION SWITCH L. FUNNEL LOCK R. FUNNEL LOCK 34839.0002D 02/07 © 2004 Bunn-O-Matic Corporation 35058.1 042007...
  • Page 56 THERMOSTAT #2 (1/2) TANK HEATER #2 THERMOSTAT #1 (1/2) TANK HEATER #1 REFILL R. BYPASS L. BYPASS R. BREW L. BREW BREWER ON/OFF SWITCH N.C. OVERFLOW PROTECTION SWITCH L. FUNNEL LOCK R. FUNNEL LOCK 34839.0003C 09/06 © 2005 Bunn-O-Matic Corporation 35058.1 042007...

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