Bunn S/N SNG0033000 & UP manual Service Tools, Testing individual components outputs, Brew Valve

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 purposes only).

SERVICE TOOLS?

NO YES

EXIT TO

NEXT FUNCTION

SCREEN

TEST OUTPUTS?

NO YES

TEST SWITCHES? PRESS AND RELEASE

NO	YES		® SYMBOL

BREW VALVE

ON NEXT OFF

NOTHING PRESSED

NEXT COMPONENT

TO BE TESTED

TEST FREQUENCY?

	NO	YES
		125.0 KHZ. 4
		4 125.0 KHZ.
	EXIT TO
	NEXT FUNCTION	PRESS AND RELEASE
	SCREEN	PRESS AND RELEASE
	SCREEN	® SYMBOL
		® SYMBOL

P2757

Testing individual components (outputs):

This will allow the operator to test the operation of individual components and outputs of the brewer. The components that can be individually tested are as follows:

Brew Valve

Bypass Valve

Funnel Lock (Optional)

Refill Valve

Tank Heaters

Heater Contactor

Procedure to test components (outputs):

1.Place brew funnels into rails on the brewer.

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

3.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

SERVICE TOOLS.

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

5.The display should read TEST OUTPUTS.

6.Press and release YES. The display should read

BREW VALVE.

7.To test BREW VALVE, press ON. If the brew valve is functional, water should run from the brewer.

8.Press OFF to end flow of water.

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

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

10.To test BREW BYPASS, press ON. If the bypass valve is functional, water should run from the brew bypass.

11.Press OFF to end flow of water.

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

13.To test FUNNEL LOCK, press ON. If the funnel lock is functional, the lock will come down to hold the funnel in place.

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Contents Phone 217 529-6601 FAX 217 Single TF DBCBUNN-O-MATIC Commercial Product Warranty Table of Contents User Notices Electrical HOOK-UP Volt ac single phase Hz models37881.0002 230 volt ac Single phase, 60 Hz models Electrical Requirements Models without power cordPlumbing Requirements CE RequirementsPlumbing HOOK-UP Batch Selector Switches Main ON/OFF SwitchON/OFF Switch Enable Brew Brew SwitchCoffee Brewing Initial SetupCleaning Glossary Programming Programming SwitchesProgramming Switch Recipes Program Functions LevelDRIP-OUT Times Continues to D LevelReturns to a Return to a Program Flow DiagramContinues to Programming the Brewer Procedure for modifying units of measure Units Setting Units of MeasureSET NEW Recipe Procedure for Setting the RecipeThis function allows the operator to set Brew Sizes DONE? SET NEW RecipesRefer to SET Pulse Brew for description Card Contains Recipe for Procedure to program the coffee nameReview RECIPES? Noyes Procedure for reviewing recipes Review RECIPES/MODIFY RECIPES/SET UP no Name Coffee NamesNext To exit, press Next until the display reads ThatScreen Brew OZ Setting or Adjusting Brew VOL- UmesReview Recipes BypassModifying pulse brew Range 1st on time off to 4 minutes SET Pulse BrewSET Pulse Brew NO-NAME ModifyshownextSET Pulse Brew Easy Pulse Setup TIMES? SET Pulse Brew Enter TimesDONE? Batches DONE? SET PreinfusionSetup Complete Assign Recipes Enable ADS?Assign Recipe ? SET Ready SET TempScreen Spray OZ/M Calibrate Flow Bypass OZ/MCalibrate Spray .. Press Brew to Start Calibrate Flow Procedures to calibrate the bypass flow rateStart Procedures to view/reset the brew counters Procedure to set funnel detectBrew Counters Funnel Detect optionalTesting individual components outputs Service ToolsProcedure to test components outputs Brew ValveFrequency Nothing PressedProcedure to set factory defaults Factory DefaultsTroubleshooting Procedures TroubleshootingScreen Displayed Possible CausePress ON/OFF to terminate the cycle TemperaturePress ON/OFF to terminate the brew cycle ON/OFF switch was pressed after the brew cycle was startedTank Heater failure Triac FailureWires shorted to housing, or to Temperature Sensor ProbeWater shut off to brewer Broken or not making connectionBrew switch Switch test procedures Equipment will not operate No power or incorrect voltageBrew Valve Switch test procedures Data plate within +/- 10%Overflow Protection Switch When this condition occurs, Troubleshooting Problem Possible CauseWith power removed from brewer Holding it in open state See above or boilingHeating Time TOO Long Limit ThermostatTroubleshooting Problem Server Pointing towards the brewer Inconsistent beverage level StrainerImproper water pressure 90 psi 138 and 620 kPaWater temperature Consistently high or low beverage Brew Volume adjustmentLevel in server For each brew cycleRemove and clean lime off tank heaters Troubleshooting Problem Possible Cause Weak beverageBrewer is making unusual noises Plumbing lines Water Supply Tank HeatersSchematic Wiring Diagram Single TF DBC Schematic Wiring Diagram Wire Single Phase Schematic Wiring Diagram Single TF DBC