Bunn LCA-2, 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 Phone 217 529-6601 FAX 217 Post Office BOX SPRINGFIELD, IllinoisBUNN-O-MATIC Commercial Product Warranty Contents28181.0003 IntroductionUser Notices 00656.0000Electrical Requirements Field Wiring Terminal Block DiagramModels without Master ON/OFF Switch Models with Master ON/OFF SwitchPlumbing HOOK-UP Plumbing RequirementsInitial SET-UP Electrical HOOK-UPRemoving the restrictors Setting Dispenser Flow RateReprogramming the Dispenser Flow Rate Oz/sec 16 I.D. Tubing Selecting the Correct Pump TubingDispense Rate1513 Operating Controls and InterfaceInitial Fill & Heat Rinse Alarm Feature FlavorGard FeatureAlarm Mode Brew Temperature Lockout Feature BIB Empty Lockout FeatureExit 3/16 Programming the DispenserMenu Screen Action Description Tank Temp 351 +0oz + LF Disp VolumeRT Disp Volume Menu Screen Lock Flavor ? Exit YES Flavors LockedCabinet Temp Menu Screen Tank TempExit + Ready TempAction Description Menu ScreenRinse Lockout ? No Exit YES Brew Lockout ? No Exit YESCAL Right Side ? Exit YES Menu Screen ActionCAL Right Pump ? Pull Dispenser CAL RT WTR Flow Pull DispenserFactory Defaults No YES Action Description WTR Start DelayWTR Stop Delay Test LED’S ? No Exit YES Test Switches ?Priming the Concentrate Lines Loading the ConcentrateFilling Cambros or other large containers Operating the Pull & Hold DispenserModels LCA-2 PC, LCA-2C PC, LCA-2A PC Operating the Preset Portion Control DispenserWeekly Sanitizing Cleaning & Preventative MaintenanceGeneral Cleaning and Sanitizing Procedures Daily Rinsing Daily Parts WashingReplacing the Pump Tubing Draining the HOT Water Tank Power LED OFF TroubleshootingFront Panel LED Display Messages Empty BIB Warning Internal FaultLeft Refill LED on Concentrate BIB is EmptyPossible Cause Troubleshooting Dispenser Diagnostics-LCD DisplayBIB Not properly connected Check BIB Connector Fittings Tubing kinked or blocked Check Tubing installationScreen Displayed Possible Cause Cabinet circulating fan failure Service Required Evaporator temperature too high Service RequiredMotor failure Service Required RPM Sensor failure Service RequiredCalibrating the Left Side Dispenser Calibrating the Right Side Dispenser Field Calibrating the Hot Water Flow RateOz/sec 53 ml/sec w/ flow restrictor Oz/sec 74 ml/sec w/o flow restrictorCalibrating The Empty BIB Threshold Field Calibrating the Empty BIB WarningLCA-2/LCA-2, PC/LCA-2C/LCA-2C, PC/LCC-2/LCC-2C Schematic Wiring Diagram Schematic Wiring Diagram LCC-2A/LCA-2A/LCA-2A, PC
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LCA-2 PC, LCA-2, LCC-2 specifications

The Bunn LCC-2, LCA-2 PC, and LCA-2A are high-performance commercial coffee brewers designed to meet the demands of busy coffee shops, restaurants, and other food service establishments. These machines are known for their efficiency, durability, and advanced brewing technologies, making them popular choices in the industry.

Starting with the Bunn LCC-2, this brewer is recognized for its compact design and ease of use. It has a brewing capacity of up to 3.8 gallons per hour, ensuring that coffee is ready quickly during peak hours. The LCC-2 uses a pour-over brewing method, which means that water is heated to the ideal brewing temperature and then poured over coffee grounds for optimal extraction. One of its standout features is the digital temperature control, which allows operators to adjust brewing temperatures easily for different coffee types. Additionally, the Bunn LCC-2 features a stainless steel construction that enhances durability and provides a sleek look for any commercial kitchen.

Moving on to the Bunn LCA-2 PC, this model includes programmable capabilities, making it perfect for establishments that require consistency and convenience. The LCA-2 PC allows users to preset brewing schedules and customize brew cycles, ensuring that each pot of coffee meets specific flavor profiles. This model is designed with a large-capacity brewing system that can produce up to 7.5 gallons of coffee per hour, making it an ideal choice for high-demand environments. It also boasts a built-in hot water faucet, which provides instant hot water for other beverages or culinary applications. The LCA-2 PC's advanced brewing automation helps maintain optimal brew quality while minimizing waste.

Lastly, the Bunn LCA-2A is an advanced version that focuses on automation and efficiency. This brewer features a state-of-the-art digital brew timer, which allows precise control over brew times, leading to consistent flavor extraction. The LCA-2A also integrates with Bunn’s patented brewWISE technology, which tracks brew recipes and monitors performance. The intuitive interface allows for easy operation, even for staff who may be less experienced with coffee brewing. With a capacity of up to 4 gallons per hour and a durable stainless steel frame, the LCA-2A ensures longevity while delivering exceptional coffee.

In summary, the Bunn LCC-2, LCA-2 PC, and LCA-2A represent the pinnacle of commercial coffee brewing technology. Their unique features, including programmable settings, large brewing capacities, and durable constructions, cater to the diverse needs of the food service industry. Each model emphasizes convenience, flexibility, and quality, making them invaluable assets in any professional coffee environment.
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