Bunn S/N DUAL068000 manual Service Tools, Procedures to test servers, Ers?, Frequency?

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PROGRAMMING THE BREWER (cont.)

SERVICE TOOLS (cont.)

front of the brewer except the upper right hidden switch. While the switch is pressed, the display shows the name of that switch. If the name does not appear, or if it remains after the switch has been released, the switch is defective. Each switch can be tested in this manner.

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. This will exit TEST SWITCHES and return to the MAIN

SCREEN.

Procedures to test servers:

This function allows the operator to test the opera- tion of the Soft Heat servers. It will also show if the server is correctly placed on the brewer stand.

1.Place brew funnels into rails on both sides of brewer.

2.Place a Soft Heat server beneath each brew fun- nel.

3.Press and hold the upper right hidden switch until the display reads UNITS. Release the switch. Con- tinue to press and release switch until SERVICE TOOLS? appears.

4.Pressing NO will exit this function and advance to the next function screen. Press YES to run tests on various components and outputs within the brewer.

5.The display should read TEST OUTPUTS?

6.In TEST OUTPUTS screen, press NO. This advances to TEST SWITCHES?. Press and release NO once more. The display should now read TEST SERV-

ERS?

7.Press YES in the TEST SERVERS screen to show if a server is in place. The display should read IN PLACE with arrows pointing to the left and right

8.Lift and pull both Soft Heat servers forward about 2 inches so that the two contacts on each server do not touch the two contacts on the brewer.

9.The display should then read SERVER REMOVED with arrows pointing to the left and right.

10.After the servers have been tested, press and release either ON/OFF switch located on the front switch panel. This will exit TEST SERVERS and return to the MAIN SCREEN.

Procedures to test coil frequency:

1.Place brew funnels into rails on both sides of brewer.

2.Place a Soft Heat server beneath each brew fun- nel.

3.Press and hold the upper right hidden switch un- til the display reads UNITS. Release the switch. Continue pressing and releasing the upper right hidden switch until SERVICE TOOLS appears.

4.Pressing NO will exit this function and advance to the next function screen. Press YES to run tests on various components and outputs within the brewer.

5.The display should read TEST OUTPUTS?.

6.In TEST OUTPUTS screen, press NO. Continue to press and release NO until the display reads TEST

FREQUENCY?.

7.Press and release YES. The display will show the frequency of the sensor coil circuits. This is for diagnostic service use when troubleshooting this circuit.

8.After the coils have been tested, press and release either ON/OFF switch located on the front switch panel. This will exit the TEST FREQUENCY function and return to the MAIN SCREEN.

NOTE: If the operator wishes to test more than one function in the SERVICE TOOLS section (outputs, switches, servers, or coil frequency), it is not necessary to exit the program. Use the flow chart for SERVICE TOOLS to navigate to a particular function.

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Contents Phone 217 529-6601 FAX 217 Dual SH DBCIntroduction BUNN-O-MATIC Commercial Product WarrantyTable of Contents 00656.0000 37881.0000 03408.0004 User Notices00658.0000 00831.0000230 volt ac models Electrical RequirementsCE Requirements Plumbing RequirementsPlumbing HOOK-UP Operating Controls Initial Setup CleaningCoffee Brewing Glossary Programming Programming SwitchesProgramming the Brewer Important Programming Notes Read CarefullyProgram Functions Level Recipes Using a Smart Funnel and a G9-2T DBC or MHG GrinderNot using a Smart Funnel and/or a G9-2T DBC or MHG Grinder Recipe Programing MethodsTo a LevelContinue To E To D ReturnsProgram Flow Diagram Continue to B Return to aContinue to F Left Brew Valve Byps OZ/M Procedure for modifying units of measure Units Setting Units of MeasureProcedure for Setting the Recipe SET NEW RecipeThis function allows the operator to set Brew Sizes DONE? SET NEW RecipeSET NEW Recipes Procedure to program the coffee nameRight Otherwise, press Next to display no NameReview Recipes Review RECIPES/MODIFY RECIPES/SET UP no Name CoffeeProcedure for reviewing recipes TimesDone Coffee Name Modifyshownext Batches DONE? YES Brew OZ Setting or Adjusting Brew VOL- UmesBatches DONE? BypassModifying pulse brew SET Pulse BrewSET Pulse Brew NO-NAME Left ModifyshownextSET Pulse Brew Easy Pulse Setup SET Pulse Brew Enter Times TIMES?DONE? SET Preinfusion Read % Bypass Procedure to modify drip timesSetup Complete Drip Time now displayed on non funnel lock units as wellOnly Procedure to copy settingsReads Copy Settings Assign RecipesSET Temp Enable ADS?YOU SURE? Are YOU SURE?SET Ready Procedure to set ready temperatureSET Temp Refill Range 20 toCalibrate Flow Spray OZ/M Procedure to adjust the flow rate settingProcedures to calibrate the sprayhead flow rate Bypass OZ/MCalibrate Flow Repeat steps 1 8 when calibrating the other sideProcedures to calibrate the bypass flow rate Repeat steps 1 9 when calibrating the other sideThis function allows the operator to track Not resettableProcedures to view/reset the brew counters Brew CountersFunnel Detect Server DetectServer not in Place Testing individual components outputs Service ToolsNothing Pressed Service Tools Procedure to test components outputsProcedure to test switches Left Brew ValveERS? Service ToolsProcedures to test servers Procedures to test coil frequencyProcedure to set factory defaults Factory DefaultsTroubleshooting Disable the Server Detect func- tionScreen Displayed Possible Cause Smart Funnel not fully inserted into the funnel rails TemperatureTroubleshooting Procedures Screen DisplayedTank Heater failure Triac FailureControl Board/Thermistor failure Troubleshooting Brew cycle will not start No water Problem Possible Cause Troubleshooting ProcedureEquipment will not operate No power or incorrect voltage Data plate within +/- 10%Problem Possible Cause Power Possible Cause Limit ThermostatTank Heaters Triac ProblemProblem Possible Cause Troubleshooting Procedures For each brew cycle Consistently high or low beverage Brew Volume adjustmentWater temperature Level in serverTions Tank Heaters Remove and clean lime off tankWeak beverage Incorrect Recipe Age, preinfusion, or pulse brewDual SH with Smart Funnel DBC Schematic Wiring DiagramSchematic Wiring Diagram Dual SH DBC W/SMART Funnel Limit Thermostat MT1

S/N DUAL068000 specifications

The Bunn S/N DUAL068000 is a versatile and high-performance commercial coffee brewer designed for those who demand quality and efficiency in their coffee-making operations. This brewer is part of Bunn’s DUAL series, known for its innovative technology and robust construction, making it a favored choice among coffee shops, restaurants, and offices.

One of the standout features of the DUAL068000 is its dual brewing capability. This allows users to brew two different types of coffee simultaneously, ensuring a wide range of flavors and options for customers. The unit is equipped with two independent brewing chambers, each capable of producing a batch of coffee in a matter of minutes, which is ideal for high-volume settings.

The DUAL068000 utilizes Bunn’s state-of-the-art brewing technology, including its patented "Duo-Temp" brewing system. This technology ensures that water is heated to the optimal temperature, generally between 195°F and 205°F, for extracting the best flavors from coffee grounds. Furthermore, the unit features a precision digital control system with programmable settings, allowing users to fine-tune brew times and temperatures for consistent quality.

An innovative characteristic of the DUAL068000 is its energy efficiency. The brewer incorporates an energy-saving mode, reducing power consumption during off-peak hours without sacrificing performance when needed. This makes the brewer not only cost-effective but also environmentally friendly, aligning with the growing trend towards sustainability in the food and beverage industry.

In terms of construction, the Bunn S/N DUAL068000 boasts a durable stainless steel design, ensuring longevity and resistance to wear and tear. It is also designed with easy access to components for maintenance, making it convenient for operators to clean and service the machine as necessary.

Other notable features include an integrated hot water faucet for tea and instant beverages, the capability to brew into various container sizes, and a large reservoir that minimizes refill frequency.

In conclusion, the Bunn S/N DUAL068000 is an exemplary commercial coffee brewer that combines advanced technology, durable construction, and user-friendly features. Its dual brewing capability and energy-saving design make it a top choice for establishments looking to enhance their coffee offerings while maintaining efficiency and quality. With this brewer, businesses can cater to a diverse array of customer preferences, making it an invaluable asset in any beverage service environment.
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