Bunn LCA-2A, LCC-2 Field Calibrating the Empty BIB Warning, Calibrating The Empty BIB Threshold

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Field Calibrating the Empty BIB Warning

The dispenser will automatically turn on the Left or Right “REFILL LED”, see Operating Controls and Interface, when the corresponding BIB is Empty. The Refill message is triggered when the FlavorGardTM sensor reading drops below the minimum setting. The factory set minimum is 500 and should be correct for most locations. However, in some areas the hardness of the local water supply may effect this reading. If the Refill message doesn’t come on when the BIB is empty or the message comes on too early and there is still concentrate left in the BIB, use the following procedure to find the correct Empty BIB threshold.

Calibrating The Empty BIB Threshold

1.Remove the lower splash guard assembly to access the digital programming module with LCD display.

2.Open the cabinet door and set the Function Switch to the “Rinse” position. Close the door.

3.Place a large container under the Left dispenser tip, then activate and hold the left dispenser.

4.Dispense long enough to rinse all the concentrate out of the mix chamber and for the Conductance reading to stabilize and stop dropping.

5.Record the nominal Conductance value displayed. (NOTE: It is typical for this value fluctuate (+/- 25) points about the nominal value}. This is the conductance reading of the water in your area.

6.Repeat steps 3, 4 & 5 for the Right dispenser.

7.Add 100 points to the larger of the Left or Right side Conductance value. This is the new Empty BIB threshold value for your dispenser.

8.Enter this new value into the Empty BIB Alarm threshold, see Programming the Dispenser.

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Contents LCA-2 LCA-2A LCA-2 PC LCC-2 Phone 217 529-6601 FAX 217BUNN-O-MATIC Commercial Product Warranty Contents Introduction37881.0000 28181.0003 11646.0002 User Notices00656.0001 40054.0000 00824.0002 47624.0000Models with Master ON/OFF Switch Field Wiring Terminal Block DiagramModels without Master ON/OFF Switch Electrical RequirementsElectrical HOOK-UP Plumbing RequirementsPlumbing HOOK-UP Installing the Drip Tray and Flip Down CUP Tray Initial SET-UPOperating Controls and Interface 1513Rate Selecting the Correct Pump TubingDispense Oz/sec 16 I.D. TubingRemoving the restrictors Setting Dispenser Flow RateReprogramming the Dispenser Flow Rate Adjusting MIX Ratios Procedure for Adjusting the Mix Ratio to TasteRinse Alarm Feature FlavorGard FeatureAlarm Mode BIB Empty Lockout Feature Brew Temperature Lockout Feature351 + Programming the DispenserMenu Screen Action Description Tank Temp Exit 3/16Menu Screen Lock Flavor ? Exit YES Flavors Locked LF Disp VolumeRT Disp Volume 0oz +Ready Temp Menu Screen Tank TempExit + Cabinet TempAction Description Menu ScreenRinse Time ? 12 Hrs + CAL Left Pump ? Pull DispenseCAL RT WTR Flow Pull Dispenser Menu Screen ActionCAL Right Pump ? Pull Dispenser CAL Right Side ? Exit YESTest LED’S ? No Exit YES Test Switches ? WTR Start DelayWTR Stop Delay Test Refill ? Exit YESInitial Fill & Heat Loading the Concentrate Priming the Concentrate LinesOperating the Pull & Hold Dispenser Filling Cambros or other large containersOperating the Preset Portion Control Dispenser Models LCA-2 PC, LCA-2C PC, LCA-2A PCDaily Parts Washing Cleaning & Preventative MaintenanceGeneral Cleaning and Sanitizing Procedures Daily Rinsing Weekly SanitizingPreventive Maintenance Replacing the Pump TubingDraining the HOT Water Tank Power LED OFF TroubleshootingFront Panel LED Display Messages Internal Fault Left Refill LED onTubing kinked or blocked Check Tubing installation Troubleshooting Dispenser Diagnostics-LCD DisplayBIB Not properly connected Check BIB Connector Fittings Possible CauseScreen Displayed Possible Cause Air intake filter clogged Clean Air Filter Corresponding Temperature Sensor Evaporator temperature too high Wiring failureCalibrating the Left Side Dispenser Oz/sec 74 ml/sec w/o flow restrictor Field Calibrating the Hot Water Flow RateOz/sec 53 ml/sec w/ flow restrictor Calibrating the Right Side DispenserField Calibrating the Empty BIB Warning Calibrating The Empty BIB ThresholdSchematic Wiring Diagram LCA-2/LCA-2, PC/LCA-2C/LCA-2C, PC/LCC-2/LCC-2CSchematic Wiring Diagram LCC-2A/LCA-2A/LCA-2A, PC
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