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To ensure you have the latest revision of the Operating Manual, or to view the Illustrated Parts Catalog, Programming Manual, or Service Manual, please visit the Bunn-O-Matic website, at www.bunn.com. This is absolutely FREE, and the quickest way to obtain the latest catalog and manual updates. For Technical Service, contact Bunn-O-Matic Corporation at 1-800-286-6070.
SOLE OPTION AS SPECIFIED HEREIN, TO REPAIR, REPLACEMENT OR REFUND. In no event shall BUNN be liable for any other damage or loss, including, but not limited to, lost profits, lost sales, loss of use of equipment, claims of Buyer’s customers, cost of capital, cost of down time, cost of substitute equipment, facilities or services, or any other special, incidental or consequential damages.
USER NOTICES Carefully read and follow all notices on the equipment and in this manual. They were written for your protec- tion. All notices are to be kept in good condition. Replace any unreadable or damaged labels. As directed in the International Plumbing Code of the International Code Council and the Food Code Manual of the Food and Drug Administration (FDA), this equipment must be installed with adequate...
NOTE: The water inlet fitting is 3/8” flare. Bunn-O-Matic recommends 3/8” flexible tubing from the 1/2” water supply line. At least 18 inches of FDA approved beverage tubing, such as reinforced braided polyethylene or silicone, before the dispenser will facilitate movement to clean the counter top.
INITIAL SET-UP NOTE: The LCR-3 HV dispenser weighs approximately 180 lbs. (82 kg). Use more than one person when lifting or moving the dispenser. 1. Cut the straps and remove the box and foam packing. 2. Locate and remove the information packets and tube kits from top of packaging and set aside. 3.
Depress the tension screw and remove it from the notch in the pump body, releasing the pump compression band. Apply lubricant (BUNN-O-MATIC part number M2531.0001) to the new pump tubing. Insert the tubing onto the mix chamber port and wrap the tubing around the pump rotor, making sure that the elbow and clamps end up on the bottom side of the pump body.
OPERATING CONTROLS AND INTERFACE 1. Master ON/OFF Switch: Disconnects AC Power to the dispenser. 2. Hot Water Handle: Pull and Hold to dispense hot water manually. 3. Door Interlock Switch: Unit will not dispense product if the door is open. 4.
INITIAL FILL & HEAT 1. Confirm the water supply is on. 2. Connect the dispenser to the power source. 3. Turn the Master ON/OFF Switch ON and select RUN on the Function Selector Switch. The LCD will display “Tank Filling – Please Wait!” and water will begin flowing into the tank. 4.
Rinse Alarm Feature Periodic rinsing of the mix chambers and dispense tips is essential for proper maintenance and optimum performance of the dispenser. The automated Rinse Alarm feature has three levels of operation; see Programming the Dispenser to select the desired alarm mode. Alarm Level Alarm Mode Disabled...
BIB Empty Lockout Feature The dispenser can be set to not dispense product when the concentrate BIB is empty. To enable this feature, first calibrate the Empty BIB Threshold (refer to Field Calibrating the Empty BIB Warning). Then enable the BIB Empty Lockout feature (refer to the BIB Empty Lockout menu in Programming the Dispenser).
PROGRAMMING THE DISPENSER Press the Right Hidden Switch for 5 sec. to enter the programming menu. Use the Left and Right hidden switches to scroll through the menu screens. Select Exit to leave the programming function and return to normal operations.
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PROGRAMMING (Continued) LCD DISPLAY ACTION DESCRIPTION Sets the water Tank temperature: Use the (+) or (-) buttons to TANK TEMP 190 (120 - 200°F) or (49 - 93°C) adjust the target Temp. (-) EXIT (+) Sets the hot water Ready temperature: Use the (+) or (-) buttons to READY TEMP 180 Typically set to the min.
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PROGRAMMING (Continued) LCD DISPLAY ACTION DESCRIPTION Select YES to Lockout dispensing until the BIB is Select (YES) to enable BibEMPTY LOCKOUT replaced and the pump has been Primed. Default NO EXIT YES is NO. Select YES to Lockout dispensing until the hot Select (YES) to enable BREW LOCKOUT ? water tank is at READY Temp.
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PROGRAMMING (Continued) The following functions are for diagnostic and troubleshooting purposes and typically do not have to be adjusted. Contact your local service agent for assistance before making changes to these functions. LCD DISPLAY ACTION DESCRIPTION CAL LEFT PUMP ? Place a 50 mL (#34843.1000) The Left Pump will dispense concentrate for 10 LEFT...
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PROGRAMMING (Continued) LCD DISPLAY ACTION DESCRIPTION XXOVERFLOW > 155 Use the (+) or (-) buttons to Used to set the Conductance Threshold for the (-) EXIT (+) adjust Overflow threshold Tank Overflow Probe XX REFILL -> 155 Use the (+) or (-) buttons to Used to set the Conductance Threshold for the (-) EXIT (+) adjust Refill threshold...
LOADING THE CONCENTRATE 1. Thoroughly mix concentrate by vigorously shaking the product Bag-In-Box (BIB). 2. Pull the BIB connector through the hole provided in the box. 3. Open the dispenser door and locate the appropriate left, middle or right BIB Adapter fitting. 4.
OPERATING THE DISPENSER The Cabinet door must be closed & latched and the Function Selector Switch set to RUN to dispense coffee. To Dispense Coffee 1. Select the desired volume (1, 2 or 3) using the rotary switch. 2. Place the appropriate container under the dispense tip. 3.
CLEANING & PREVENTATIVE MAINTENANCE General Cleaning and Sanitizing Procedures Note: The BUNN® Liquid Coffee Dispenser incorporates a “user selectable” rinse reminder feature and can be set to disable dispensing when it is time to rinse. See Programming Functions to activate this feature.
Excessive wear will reduce the output of the pumps resulting in a weak mixed beverage. Bunn-O-Matic recommends replacing the Pump Tubing a minimum of once every 6 months or sooner, if warranted. Refer to the Tube Replacement Instruction on the Cabinet door for details.
DRAINING THE HOT WATER TANK CAUTION: The dispenser must be disconnected from the power source throughout these steps. 1. Disconnect the dispenser from the power source. 2. Shut off and disconnect the incoming water supply. 3. Remove the lower right access panel. 4.
Troubleshooting A troubleshooting guide is provided to suggest probable causes and remedies for the most likely problems encountered. If the problem remains after exhausting the troubleshooting steps, contact the Bunn-O-Matic Technical Service Department. • Only qualified service personnel should perform inspection, testing, and repair of electrical equipment.
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Troubleshooting (Continued) Screen Displayed Possible Cause Troubleshooting Procedures ____ TARGET RPM The calculated Target RPM for the Check Pump & Flow Rate Calibration, refer TOO LOW !! pump indicated is out of range to Field Calibration Procedures ____ PUMP FAULT 1.
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Troubleshooting (Continued) Screen Displayed Possible Cause Troubleshooting Procedures 1. Cold Sensor wire(s) shorted to housing, Service Required COOL TEMP SENSOR or to each other. OUT OF RANGE 2. Product cabinet temperature too Service Required CHECK FOR BAD high. CONNECTIONS 3. Product cabinet temperature too low. Service Required CHECK WIRE FOR SHORTS...
However, if the mix ratio accuracy is ever in question, this procedure can be used to recalibrate the unit in the field. Equipment Required: 250 ml graduated cylinder, with 2 ml graduations. BUNN # 34028.0000 2000 ml graduated container. BUNN # 34843.0001 NOTE: You can calibrate either the Concentrate Pumps or the Dispenser Flow Rate independently.
Field Calibrating the Empty BIB Warning The dispenser will automatically display LEFT, MIDDLE or RIGHT BIB Empty when the corresponding Concentrate BIB is Empty. The Refill message is triggered when the Conductance Sensor reading drops below the minimum setting. The factory set minimum is 600 and should be correct for most locations. However, the hardness of the local water supply may affect this reading.