Bunn ITCB-DV manual Service Tools, Procedure to test components and outputs, Test Switches

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PROGRAMMING THE BREWER (cont.)

PROGRAMMING FUNCTIONS - LEVEL 2 (cont.)

SERVICE TOOLS

This function allows the testing of individual components and the ability to check switches for proper function. This function also tests the funnel sensor coil’s frequency (diagnostic tool for troubleshooting purposes only).

Procedure to test components and outputs:

The following components can be individually tested: Brew Valve

Dilution Valve Refill Valve Tank Heater Relay Tank Heater Triac

1.Place a funnel into the rails of the brewer.

2.Place a server beneath the funnel.

3.Press and hold the right hidden button until the dis- play reads SET LANGUAGE. Press the right hidden button until the display reads SERVICE TOOLS.

4.Press and release YES. The display should now read TEST OUTPUTS? Press and release YES to test individual components and outputs. Pressing NO will advance to the next programming function,

TEST SWITCHES.

5.The display should now read BREW VALVE. To test the brew valve, press ON. If the brew valve is functional, water should run from the funnel.

6.Press OFF to end the flow of water.

7.Press NEXT to advance to the next component to be tested.

NOTE: To bypass testing any component, press NEXT to advance to the next component without testing the previous one.

8.The display should now read DILUTION. To test the dilution valve, press ON. If the dilution valve is functional, water should run from the nozzle.

9.Press OFF to end the flow of water.

10.Press NEXT to advance to the next component to be tested, REFILL VALVE.

11.To test the REFILL VALVE, press ON. If the refill valve is functional, the sound of the valve operating will be heard.

12.Press OFF to end testing of the refill valve.

13.Press NEXT to advance to the next component to be tested, TANK HEATR RELAY.

14.To test the tank heater relay, connect a voltmeter across each of the tank heaters to check for volt- age.

15.Press ON. The correct voltage should be present at the heater terminals.

16.Press OFF to end testing of the tank heater relay.

NOTE: The tank heater will automatically turn off if left on too long.

17.Press NEXT to advance to the next component to be tested, TANK HEATR TRIAC.

18.To test the tank heater triac, connect a voltmeter across each of the tank heaters to check for volt- age.

19.Press ON. The correct voltage should be present at the heater terminals.

20.Press OFF to end testing of the tank heater triac.

21.Press NEXT to TEST OUTPUTS?. To exit program- ming, press and release the ON/OFF button to return to the MAIN SCREEN.

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Contents Post Office BOX SPRINGFIELD, Illinois Phone 217 529-6601 FAX 217BUNN-O-MATIC Commercial Product Warranty Volt Machine IntroductionDual Voltage Machine User Notices 0 7IRE .$  #29710.0010 Ptional &IELD 7IRING0 7IRE .$  #29710.0009 Dual Volt Toggle Switch Electrical HOOK-UP Electrical RequirementsConductor for earth ground A separate conductor For earth groundTank Drain Plumbing RequirementsPlumbing Hook UP Operating Controls Make sure the ON/OFF switch is OFF LED will not be lit Initial SET-UPViewing Assigned Recipes & Asset Number Repeat for Brew B and Brew CTEA Brewing Coffee BrewingWithout a Smart Funnel and G9-2T DBC Grinder With a Smart Funnel and G9-2T DBC or MHG GrinderCleaning MediumGlossary Glossary Programming Section Programming SwitchesProgramming Programming the Brewer Important Programming Notes Read CarefullyReady to Brew Water Temp ScreenProgramming Functions Flow Chart Programming the BrewerProcedure for setting Brew Lockout Programming Functions Level Brew LockoutSET Language Procedure for setting LanguageProgramming the Brewer Programming Functions Level 2 Procedure for setting the Units UnitsModify Show and Next Review Recipes Modify recipe, set up standard recipesProcedure for reviewing the recipes Assign Recipe Using a Smart Funnel and a G9-2T DBC or MHG Grinder Master Temp YESDONE? Coffee Name Setup Complete Ready to Brew Water TempCard Contains Recipe for Coffee Name Show Quit SaveReview RECIPES? No YES Stored in the brewer’s memoryIf the brewing information is not correct, or it is Coffee Name Modify Show NextReview Recipes No YES TEA Modify Show NextRecipe Name Modify Show Next Brew OZ XX.X Done +Batches DONE? Dilute Dely Done +Brew OZ SET Pulse Brew No YES Tea recipe to be modifiedRead Dilute OZ Water for that particular batch sizeSetting Pulse Brew Easy Pulse Brew TEA Recipes SET Pulse BrewRead Select Method Read Dilute DelyBrew Press and release YES. The display should now read Dilute OZ Press and release DONE. The display should read1ST on Time SET Pulse Brew No YESSelect Method Easy Next Manual OFF TimeSetting for the batch size just programmed. After Occurs for that batch sizeStep Read 2 Batches DONE?SCREEN, press and release the ON/OFF button NO-NAME Coffee Modify Show NextCoffee recipe to be modified Coffee Recipes SET Pulse Brew Last on Time Pre-Infusion to 4 minutesSize to display the settings for that batch. After a Directly to stepRead SET Pulse Brew Repeat steps 10, 11Press and release DONE. The display should read TEA Modify Show Next Repeat steps 8 through Coffee Recipes Drip TimePulse Brew Using -and +, adjust the brew and faucet tem- perature Master TempReady Degree Procedure to set ready temperature Range 2 to 20 F 1 10 CUsing -and +, adjust the ready temperature Enable ADS Procedure to Enable/Disable AdsProcedure to Write an Ad WriteFrom the NEW AD? screen, press and release Card Card no WriteProcedure for enabling sanitation Range 0.0 to 72.0 hrs Enabl SanitationEnable Energysavr Procedure to enable energy savings modeEnableFreshTimer DoneEnable Fresh Timer TimerCoffee XXX RefillRefill Range 0 toProcedure to adjust the sprayhead flow rate set- ting Spray OZ/MProcedure to adjust the dilution flow rate setting Dilute OZ/MCalibrate FLOW? No YES Spray Head CAL No YESContainer READY? Quit YES Calibrate Spray Quit StartCalibrate FLOW? No YES Spray Head CAL No YESDilution CAL? No YES Container READY? Quit YESBrew a Xxxx Next Reset Brew B Xxxx Next ResetBrew C Xxxx Next Reset Brew COUNTERS? No YES SET Recipe Temps Temps Tools YESProcedure to enter the asset number Asset NumberEnter Asset #? Press and release YES. The display will now readService Number Procedure to enter the service numberEnter Service #? Service TOOLS?Service Tools Procedure to test components and outputsTest Switches Following components can be individually tested Brew ValveP2883 36748 Service TOOLS? No YES Test SWITCHES? No YESTest OUTPUTS? No YES Right Hidden To Exit Nothing PressedDone QuencyFactory Defaults No YES Will Replace ALL Brew Settings Are YOU SURE? No YESFactory Defaults DefaultsFactory Default Values TEA 1 RecipeTEA 2 Recipe TEA 3 RecipeFactory Default Values HOT TEA RecipeIced Coffee Recipe NO-NAME Coffee RecipeTroubleshooting Troubleshooting ProblemProbable Cause RemedyProblem Probable Cause Remedy Brew switchBrew valve Control BoardProblem Probable Cause Automatic refill will not operate No waterLong Tank drain clampCheck the wiring harness Automatic refill will not operate or Refill valveWater flows into tank continuously Refill valve TingIf the left three digit number To it is secureHeating Time TOO Long Problem is found Tank heatersConnect a voltmeter across Working orderTion Strainer Direction of flow arrow must beMove the strainer and check for Obstructions. Clear or replaceLime buildup Temperature probe Control Board Funnel tip Brew volume adjustment Improper water pressure90 psi 138 and 620 kPa Head for lime buildupFor proper extraction Brew cycle should be startedWater temperature Weak beverage Type of paper filterCoffee or tealeaves Proper extractionPlumbing lines Water supply Tank heaters Remove and clean lime off tank heatersSolenoids Schematic Wiring Diagram ITCB-DV #%-!4#72. $!2!- I4#! I4# Schematic Wiring Diagram ITCB-C-DV
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