Bunn LCR-3 User's Manual
Contents
1. 6 41129 060111 DRIP TRAY INSTALLATION 1 Unscrew the middle and right front legs Fig 1 just enough to allow the mounting bracket to slide under the legs 1 8 Caution The LCR 3 HV is very heavy Use wood blocks to hold the machine up while working underneath it 2 Insert the bracket between the legs and the base of the machine and retighten the legs Fig 2 DRAIN FITTING MOUNTING BRACKET Fig 1 Fig 2 3 Insert the Drip Tray onto the mounting bracket Fig 3 Make sure the drain fitting is still protruding through the hole SIDE VIEW FRONT VIEW Fig 3 Optional Drip Tray Drain A separate drain tube not supplied may be attached to fitting in the bottom of the tray if desired Note Drill a hole in the center of the fitting before attaching the drain hose Direct the other end of this hose into a permanent drain Alternate Evaporator Drain For locations where the Drip Tray is not desired connect a separate drain hose not supplied to the Evaporator Drain Fitting and direct the other end of this hose into a permanent drain CAUTION FAILURE TO INSTALL THE DRIP TRAY OR ALTERNATE EVAPORATOR DRAIN WILL RESULT IN WATER DRIPPING ON TO THE COUNTER AND OR FLOOR UNDER THE DISPENSER INSTALLING THE2. CABINET ay 5 1 EVAPORATOR 5 Pag ett SENSOR Sal SENSOR Zp BLU BLK aujas 4 BED LIMIT 1 LIMIT 1 BU go 8002 TANKHEATER Rengo 65 2 RED 12 ore RED 12 TANK HEATER 2 TOUCHPAD 2 BLK CONDUCTANCE SENSOR ROTARY SWITCH LUTEK 2 DUMBAESSOA ASSEMBLY 27 41129 110608
3. 68 3 HV gt INSTALLATION amp OPERATING GUIDE BUNN O MATIC CORPORATION POST OFFICE BOX 3227 SPRINGFIELD ILLINOIS 62708 3227 PHONE 217 529 6601 FAX 217 529 6644 www bunn com 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 41129 0000H 06 11 2008 0 Corporation BUNN O MATIC COMMERCIAL PRODUCT WARRANTY 0 Corp BUNN warrants equipment manufactured by it as follows 1 All equipment other than as specified below 2 years parts and 1 year labor 2 Electronic circuit and or control boards parts and labor for 3 years 3 Compressors on refrigeration equipment 5 years parts and 1 year labor 4 Grinding burrs on coffee grinding equipment to grind coffee to meet original factory screen sieve analysis parts and labor for 3 years or 30 000 pounds of coffee whichever comes first These warranty periods run from the date of installation BUNN warrants that the equipment manufactured by it will be commercially free of defects in material and workmanship existing at the time of manufacture and appe
4. 11 Programming the Dispenser 12 Loading the 17 Priming the Concentrate 17 Operating the 18 Filling Cambros or other large containers 18 Cleaning amp Preventive 19 Replacing the Pump 20 Draining the Hot 21 an 22 Field Calibration of the Concentrate PUMPS 20 Dispenser Flow Rate Calibration 25 Field Calibrating the Empty 26 Schematic Wiring Diagram 27 Always follow the Concentrate Manufacturer s for recommendations for proper Storage and Shelf Life The product Flavor Profile is extended by the refrigerated cabinet featured in the LCR 3 This dispenser is designed to operate at ambient temperatures from 32 F 0 C minimum to 104 F 40 C maximum 41129 060111 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 AWARNING DO NOT OVERLOAD CIRCUIT ALWAYS ELECTRICALLY GROU
5. SELECT Ce Ce Ce DrD 17 41129 052208 OPERATING THE DISPENSER The Cabinet door must be closed amp 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 Press and release the desired flavor switch to dispense product The LCD will display DISPENSING PRODUCT PRESS ANY SWITCH TO STOP Note Pressing any switch after starting a dispense cycle will abort that dispense and halt the flow of product 4 Remove the container and serve accordingly To Dispense Hot Water 1 Place container under the hot water dispenser tip 2 Pull and Hold the Hot Water handle until the water reaches the desired level then release 3 Remove the container NOTE For large containers that will not fit under the dispense tip a short 3 8 diameter NSF approved hose may be used FILLING CAMBROS OR OTHER LARGE CONTAINERS The dispenser is designed primarily for containers that will fit under the dispense tip However it may be used to fill larger containers up to 5 Gal by use of an extension hose on the dispense tip Care must be taken to insure that the mixed product flows freely from the dispense tip into the container 1 Use a 5 8 I D or larger NSF National Sanitation Foundation approved hose 2 Use as short a hose as possib
6. buttons to adjust delay time Use the or buttons to adjust delay time NONE Momentarily depress YES Momentarily depress YES Use the or buttons to enter the ASSET NUMBER NONE Select to view the Fault Conditions Use the or to scroll through the Faults Select YES or NO DESCRIPTION Used to set the Conductance Threshold for the Tank Overflow Probe Used to set the Conductance Threshold for the Tank Refill Probe Dispense Valve ON Delay Eliminates weak mix at the beginning of a dispense Dispense Valve OFF Delay Flushes the mix chamber at the end of a dispense Switch Diagnostic Activate switches separately to test Display will indicate which Switch has been activated NOTE Door Interlock switch must be held closed Refill Valve Diagnostic Press YES to momentarily energize the Solenoid CAUTION Inlet Valve will open and water will flow if connected and turned ON Tank Heater Diagnostic Press YES to momentarily energize the Tank Heater Circuit CAUTION AC power will be applied to the Tank Heater Circuit Allows the user the option of entering an Asset Number Default is 000000 Displays the manufacture s Serial Number should be identical to the Serial Number on the Data Plate This unit stores the last 3 Fault Conditions in memory for diagnostic purposes Displays up to 3 FAULT Conditions or NO FAULTS if nothing has failed since the last Reset De
7. or buttons to Sets the Chilled cabinet target temperature adjust the target Temp 38 50 F or 3 10 C The following functions can be Password Protected If you wish to prevent others from accessing these functions enter a 4 digit code of your choice Record your password code _ _ _ as you will need it to access these functions in the future LCD DISPLAY ENTER PASSWORD 0 SET PASSWORD 0 2 OR 3 PRODUCTS 2 EXIT 3 SELECT UNITS ENG EXIT METRIC REFRIGERATION ON EXIT OFF DEICE CYCLE TIME 120 RINSE ALARM NO EXIT YES If NO If YES RINSE TIME 12HRS RINSE LOCKOUT NO EXIT YES to Next Page ACTION Use the or buttons to enter password Use the or buttons to change the password Select the number of products to be dispensed Select the preferred units Select OFF to disable the Refrigeration system Select the time delay between automatic deicing of the cabinet Select YES or NO Use the or buttons to adjust Rinse Alarm delay Select YES to enable DESCRIPTION Enter the access Code to view the remaining functions Factory Default 0 Enter your own Code to prevent access to the remaining functions 0 to 9999 Used to switch from standard 3 products to 2 products w Autoswitching of the Left and Middle Bibs Used to select the preferred units of measurement 07 Gal deg o
8. The dispenser must be disconnected from the power source throughout these steps Disconnect the dispenser from the power source Shut off and disconnect the incoming water supply Remove the lower right access panel Pull out drain tube to empty into a sink or a container with a minimum of 18 gallon capacity Make sure drain clamp is closed Then remove drain plug Direct tube into sink or container and open drain clamp Continue draining tank until ALL of the water is out CAUTION The water may be very hot as it drains out of the tank Make sure the hose is directed away from the body 7 Close drain clamp insert drain plug place drain tube back into machine and replace the access panel Note The dispenser must be refilled using the Initial Fill amp Heat steps before reconnecting the power source gt 21 41129 052208 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 e Shorting the terminals or the application of external voltages to electronic components may result in component Circuit board failure e Intermittent operation of electronic circuit boards is unlikely board failure will normally be per
9. Improper electrical installation will damage electronic components 1 An electrician must provide electrical service as specified in conformance with all local state and federal electrical codes 2 Using a voltmeter check the voltage and color coding of each conductor at the electrical source 3 If plumbing is to be hooked up later be sure the dispenser is disconnected from the power source If plumbing has been hooked up the dispenser is ready for Initial Fill amp Heat PLUMBING HOOK UP 1 Flush the water line to remove any debris or foreign material 2 Securely attach the water line to the 3 8 flare fitting lower right rear corner of the dispenser 3 Turn on the water supply and check for leaks NOTE Water pipe connections and fixtures directly connected to a potable water supply shall be sized installed and maintained in accordance with federal state and local codes LEVELING THE DISPENSER Proper leveling of the dispenser is required to insure proper drainage of condensation from the refrigeration unit 1 Set the dispenser on a level counter top 2 Use the 6 adjustable legs to level the dispenser 3 Once the unit is level adjust the front three legs out another 1 16 to create a slight tilt towards the rear of the dispenser See Fig below LEVEL r i 416
10. PUMP TUBING Refer to the Tubing Installation Instructions in side the cabinet door for details 1 Loosen the thumbscrew securing the tubing retainer plate to the pump housing Set the retainer plate aside 2 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 4 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 Close the compression band reinsert the tension screw into the notch in the pump housing Replace the tubing retainer plate and tighten the thumbscrew Reconnect bag connector to the product box Repeat steps 1 through 7 for the other two pumps Prime the pumps Refer to Priming the Concentrate Lines section 1 DN 2 0 Lubricate between arrows Remove Tubing Lubricate New Tube Install New Tubing Completed Installation 7 41129 110608 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 LCD Display Displays status programming menus and fault messages 5 Volume Selection Rotate dial to the desired volume prior to dispensing product 6 Dispense Switches
11. the Blue Heater wire to the Top Black Terminal as shown 3 Unit requires120 Vac from L1 to N PLUMBING REQUIREMENTS The dispenser may be connected to a cold or hot water system 140 F Max with operating pressure between 20 and 90 psi 138 and 620 kPa from a 1 2 or larger supply line Install a regulator in the line when pressure is greater than 90 psi 620 kPa to reduce it to 50 psi 345 kPa The dispenser is set up to deliver to 6 Oz sec 177 4 ml sec and requires a water supply that can deliver a minimum of 3 11 4 Ipm at the inlet valve shut off valve should be installed in the line before the dispenser 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 Bunn O Matic does not recommend the use of a saddle valve to supply water to the dispenser The size and shape of the hole made in the supply line made by this type of device may restrict water flow NOTE The water level sensors inthis machine do not work with de ionized water and may cause the unit to overflow RO Reverse Osmosis water supply systems may need to be treated to restore free ions to the water As directed in the International Plumbing Code of the International Code Council and the Food Code Manual of the
12. the Tube Replacement Instruction on the Cabinet door for details 1 Rinse the pump tubing with warm tap water Refer to step 5 of the Weekly Sanitizing instructions prior to removing the tubes to avoid concentrate spills 2 Loosen the thumbscrew securing the tubing retainer plate to the pump housing Set the retainer plate aside 3 Depress the tension screw and remove it from the notch in the pump housing releasing the tube compression band 4 Open the compression band and gently pull the pump tube from around the pump s rotor 5 Inspect the pump bands for signs of cracking or excessive wear Replace if necessary 6 Apply lubricant BUNN O MATIC part number M2531 0001 to the new pump tubing s rotor side 7 Insert the tube onto the mix chamber port then wrap the new tubing around the pump rotor making sure the elbow and clamps end up on the bottom side of the pump housing 8 Depress the tension screw and insert it in the notch in the pump body reapplying spring tension to the compression band 9 Replace the tubing retainer plate and tighten the thumbscrew 10 Repeat steps 1 through 9 for the other two pumps Note Replacement Tube Adapter Kits can be purchased from BUNN O MATIC 2 07 t Lubricate between arrows Remove Retaining Plate Release Spring Tension Remove Tubing Lubricate New Tube Install New Tubing Completed Installation 20 41129 030910 DRAINING THE WATER TANK CAUTION
13. A B C Push and Release to dispense the desired product These also double as programming switches in the Set Up mode 7 Function Selector Switch Allows the user to set the dispenser into different dispensing modes a RINSE Dispenses hot water only Flushes the mix chamber and dispense tip b RUN Normal dispense mode Dispenses mixed product concentrate and water c PRIME Dispenses concentrate only Primes the concentrate pump 8 Hidden Set Up Programming switches a Press and hold the Right switch for 5 sec to enter in the Set Up mode b Use the Right switch to scroll down and the Left switch to scroll up through the menu screens 8 41129 052208 4 5 INITIAL FILL amp HEAT Confirm the water supply is on Connect the dispenser to the power source 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 Once the tank is full the dispenser will start heating the water and display Heating Select Flavor Dispenser models with product chillers will also begin to cool the cabinet at this time The LCD will display Ready Select Flavor when the tank temperature reaches the preset Ready Temperature Note The time required to heat the water initially will vary depending on the AC Power and the temperature of the incoming water While the tank is heating the dispenser may be read
14. Corresponding Temperature Service Required CHECK WIRE Sensor Probe wire s shorted FOR SHORTS to housing or to each other 23 41129 052208 Screen Displayed COOL TEMP SENSOR OUT sa CHECK FOR BAD CONNECTIONS CHECK WIRE FOR SHORTS EVAP TEMP SENSOR OUT a le CHECK FOR BAD CONNECTIONS CHECK WIRE FOR SHORTS COOLER FAULT EVAP TEMP TOO HI CHECK EVAP FAN CHK EVAP SENSOR COOLING TIME TOO LONG CHECK AIR FILTER CHECK COOLING UNIT COND PROBE FAULT CHECK COND PROBES CHK DISP SWITCHES CHK CONNECTIONS JUMPER FAULT VALID CHECK J 18 ON CONTROL BOARD Troubleshooting Continued Possible Cause Cold Sensor wire s shorted to housing or to each other Product cabinet temperature too high Product cabinet temperature too low Evaporator temperature too high or too low Corresponding Evaporator Sensor Probe wire s broken or disconnected Corresponding Temperature Sensor Probe wire s shorted to housing or to each other Cabinet circulating fan failure Ice build up on evaporator coils Evaporator sensor failure Air intake filter clogged Wiring failure Compressor failure Concentrate buildup on probes Machine dispensing continously Water flowing continously Invalid wire harness configuation 24 Troubleshooting Procedures Service Required Service Required Service Required Service Required Service Required Service Req
15. Food and Drug Administration FDA this equipment must be installed with adequate backflow prevention to comply with federal state and local codes For models installed outside the U S A you must comply with the applicable Plumbing Sanitation Code for your area ALTERNATE LOCATION FOR THE WATER AND ELECTRICAL CONNECTIONS The LCR 3 HV is supplied with the electrical and water connections at the back of the dispenser However in some applications it may be more convenient for one or both of these connections to be located in the bottom of the dispenser To change the location remove appropriate cover plate s from the bottom of the dispenser Remove the valve and or electrical clamp and holes plugs from the back of the dispenser and install them in the bottom panel Re install the cover plate on the back of the dispenser to cover the open holes Take care to replace and tighten all water clamps mounting screws and the plastic hole plugs 5 41129 060111 INITIAL SET UP NOTE The LCR 3 HV dispenser weighs approximately 180 Ibs 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 Set dispenser on the counter where it is to be used CAUTION DO NOT LIFT ON THE DOOR 4 Confirm the dispenser is level on the counter See LEVELING THE DISPENSER ELECTRICAL HOOK UP CAUTION
16. IB but could allow dispensing of weak coffee 1 2 3 Set the Function Switch to the Rinse position Place a 1 2 gal or larger container under the dispense tip then activate and hold the left dispenser Dispense long enough to rinse all the concentrate out of the mix chamber and for the conductance reading COND on the LCD to stabilize and stop dropping 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 Add 100 points to Conductance value This is the new Empty BIB threshold value for your dispenser Enter this new value into the Empty BIB Alarm threshold see Programming the Dispenser 26 41129 052208 SCHEMATIC WIRING DIAGRAM LCR 3 TERMINAL BLOCK FOR 3 PHASE OPERATION WIRE AS SHOWN FOR SINGLE PHASE OPERATION MOVE BLU WIRE INTO CELL WITH BLK WIRE C RED 44 RED 0 RIGHT RPM N SENSOR 3 T ay R 0 7 5 L w RED 7 10 8 RED sage RED 0 i RED BLK 0 MIDDLE RPM ee A senson case D a RED WHI GRY LEFT RPM SENSOR 208 240 VOLTS 3 WIRE GND SINGLE PHASE 60HZ or 208 240 VOLTS AC 4 WIRE GND THREE PHASE 60HZ i 1 A 1 1 WHUYEL y
17. ND THE CHASSIS OR ADAPTOR PLUG DO NOT DEFORM PLUG OR CORD FOLLOW NATIONAL AND LOCAL ELECTRICAL CODES KEEP COMBUSTIBLES AWAY FAILURE TO COMPLY RISKS EQUIPMENT DAMAGE FIRE OR SHOCK HAZARD READ THE ENTIRE OPERATING MANUAL BEFORE USING THIS PRODUCT 00986 0002E 5 98 1994 Bunn O Matic Corporation 00986 0002 7 A WARNING To reduce the risk of electric shock do not remove or open cover No user serviceable parts inside Authorized service personnel only Disconnect power before servicing 37881 0000 Optional Field Wiring 120 208 V 37 6 A 7820 W 1PH 3 Wire GND 60HZ 120 240 V 43 2 A 10400 W 1PH 3 Wire GND 60HZ FOR USE ON INDIVIDUAL BRANCH CIRCUIT ONLY 120 208Y V 32 8 A 12000 W 3PH 4 Wire GND 60HZ 28181 0004 WARNING 37280 0000 REMINDER AIR FILTER CLEAN AIR FILTER CLEAN WEEKLY WE E KLY LOCATED UNDER THE DISPENSER LOCATED UNDER THE DISPENSER FILTRO DE AIRE RECORDATORIO LIMPIAR LIMPIAR EL FILTRO DE SEMANALMENTE AIRE SEMANALMENTE LOCALIZADO DEBAJO DEL DISPENSADOR LOCALIZADO DEBAJO DEL DISPENSADOR YS 40054 0000 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 backflow prevention to comply with federal state and local codes For models installed outside
18. 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 CAL LEFT PUMP LEFT CAL LF PUMP VOL 58mL CAL MIDDLE PUMP MIDDLE CAL MID PUMP VOL 58mL CAL RIGHT PUMP RIGHT CAL RT PUMP VOL S8mL CAL HI WTR FLOW PULL DISPENSER CAL HI WTR VOL 1720mL XXX CAL gt XXX Tank Temp BIB EMPTY gt 600 EXIT ACTION Place a50 mL 34843 1000 graduated cylinder under the dispense tip then activate the Left Pump Use the or buttons to enter volume collected Place a50 mL 34843 1000 graduated cylinder under the dispense tip then activate the Middle Pump Use the or buttons to enter volume collected Place a50 mL 34843 1000 graduated cylinder under the dispense tip then activate the Right Pump Use the or buttons to enter volume collected Place a 640z 2000mL container under the dispense tip then Press and Hold any Dispense Switch Use the or buttons to enter volume collected Use the or buttons to adjust temperature reading Use the or buttons to adjust Empty BIB threshold DESCRIPTION The Left Pump will dispense concentrate for 10 seconds then shut off automatically Collect and measure the concentrate dispense
19. aring within the applicable warranty period This warranty does not apply to any equipment component or part that was not manufactured by BUNN or that in BUNN s judgment has been affected by misuse neglect alteration improper installation or operation improper maintenance or repair damage or casualty This warranty is conditioned on the Buyer 1 giving BUNN prompt notice of any claim to be made under this warranty by telephone at 217 529 6601 or by writing to Post Office Box 3227 Springfield Illinois 62708 3227 2 if requested by BUNN shipping the defective equipment prepaid to an authorized BUNN service location and 3 receiving prior authorization from BUNN that the defective equipment is under warranty THE FOREGOING WARRANTY IS EXCLUSIVE AND IS IN LIEU OF ANY OTHER WARRANTY WRITTEN OR ORAL EXPRESS OR IMPLIED INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTY OF EITHER MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE The agents dealers or employees of BUNN are not authorized to make modifications to this warranty or to make additional warranties that are binding on BUNN Accordingly statements by such individuals whether oral or written do not constitute warranties and should not be relied upon lf BUNN determines in its sole discretion that the equipment does not conform to the warranty BUNN at its exclusive option while the equipment is under warranty shall either 1 provide at no charge replacement parts and or labor dur
20. ceeded The LCD will display LF or MID BIB EMPTY Replace Soon to indicate that BIB is empty To enable this feature first calibrate the Empty BIB Threshold refer to Field Calibrating the Empty BIB Warning Then select 2 in the 2 or 3 PRODUCTS menu screen refer to Programming the Dispenser NOTE If the operator feels the unit is waiting too long to switch over to the other BIB too much clear water during the switch over increase the Empty BIB threshold and retest Repeat this process until you are satisfied that the original BIB is nearly empty and switch over time is acceptable The operator can choose to replace the empty BIB right away or wait until the second BIB is empty The dispenser will continue to switch from one BIB to the other until it gets two BIB Empty warnings in a row The dispenser will then shut down and display BIB EMPTY Replace Now indicating that both BIB s are empty Replace the BIB s and PRIME the concentrate line refer to Priming the Concentrate Lines to clear the BIB Empty warning If the BIB Empty warning reappears repeat the Priming operation a second time to insure the concentrate is flowing properly NOTE The BIB EMPTY LOCKOUT feature is automatically enabled when this feature is selected 11 41129 071409 operations 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 t
21. com Scale Pro Silver Series Single Smart Funnel Smart Hopper SmartWAVE Soft Heat SplashGard The Mark of Quality in Beverage Equipment Worldwide ThermoFresh Titan A Partner You Can Count On Air Brew Air Infusion Beverage Bar Creator Beverage Profit Calculator Brew better not bitter BUNNSource Coffee At Best Cyclonic Heating System Digital Brewer Control Nothing Brews Like a BUNN Pouring Profits Signature Series Tea At Its Best Phase Brew The Horizontal Red Line trifecta Ultra Velocity Brew are either trademarks or registered trademarks of Bunn O Matic Corporation 2 41129 050511 2 3 WSR 4 Electrical Requirements 5 Plumbing 5 Initial Set UD sasaa a A 6 Electrical 6 Plumbing HOOKUPS 6 Leveling the Dispense cscscscccssrsessssssessereesees 6 Installing PUMP TUDING ss 7 Operating Controls amp Interface 8 Initial Fill 9 Rinse Alarm 10 Empty Lockout Featur 11 Brew Temperature Lockout 11 INTRODUCTION Energy Saver Mode 11 Optional 2 Product Operation
22. d Enter the volume of concentrate measured from the Left Pump in mL not 07 The Middle Pump will dispense concentrate for 20 seconds then shut off automatically Collect and measure the concentrate dispensed Enter the volume of concentrate measured from the Middle Pump in mL not 07 The Right Pump will dispense concentrate for 20 seconds then shut off automatically Collect and measure the concentrate dispensed Enter the volume of concentrate measured from the Right Pump in mL not 07 The Dispenser will dispense hot water for 20 seconds then shut off Release Dispense Sw Collect and measure the water dispensed Enter the volume in mL Default is 1720 mL Adjust the display reading to match a calibrated probe inserted next to the Tank Sensor F C Used to set the Conductance Threshold for the Empty BIB warning Default is 600 41129 071409 PROGRAMMING Continued LCD XXOVERFLOW gt 155 DISPLAY EXIT XX REFILL gt 155 EXIT WTR START DELAY 15SEC WTR STOP DELAY 15SEC TEST SWITCHES UseSwitchToTest TEST REFILL EXIT YES TEST HEATER EXIT YES ENTER ASSET 000000 SERIAL LCR 0000000 VIEW FAULTS EXIT LATEST FAULT NO FAULTS FACTORY DEFAULTS NO YES ACTION Use the or buttons to adjust Overflow threshold Use the or buttons to adjust Refill threshold Use the or
23. e Arrow Down key to scroll through LCD screens until CAL LEFT SIDE appears and press the YES button 6 The CAL LEFT PUMP menu screen will be displayed Place a 50 ml graduated cylinder under Dispense Tip and activate the Left dispenser momentarily The dispenser will run the Left Concentrate Pump for 20 seconds and then shut OFF automatically 7 Keep the graduated cylinder under dispense tip until all the concentrate has dripped out 8 Measure the volume of concentrate collected in the graduated cylinder The acceptable range for the volume collected for the 1 4 tubing is 50 60 ml 9 If the amount collected is not within the acceptable range empty the graduated cylinder and repeat STEPS 6 8 10 If the amount collected is still not within range replace the pump tubing with a new Tube Kit refer to the Tube Replacement Instructions 11 When satisfied with the volume of concentrate collected scroll down to the next menu screen 12 The CAL LF PUMP VOL menu screen will be displayed Use the keys to adjust number displayed to the amount measured in STEP 8 Repeat steps 2 11 to Calibrate the Middle and Right Pumps Dispenser Flow Rate Calibration 1 Press the Right hidden switch to display the WTR FLO menu screen 2 Place a 2000 graduated container under Dispense and press Left Dispense Switch momentarily The dispenser will dispense water for 10 seconds and then shut OFF automatically 3 Keep the graduated conta
24. e set to turn off or lower the temperature when not in use This feature allows the user to enable the Energy Saver Mode set the Idle Time length of time the dispenser is inactive before the Energy Saver Mode is activated and choose between shutting the tank heaters OFF or holding the tank at 140 F 60 C for faster recovery refer to Programming the Dispenser When enabled the dispenser will automatically go into the Energy Saver Mode after a predetermined time of inactivity Idle Time When in this Mode the display will show EnergySaver Mode Press Any Switch NOTE Activating any switch on the control panel will cancel the Energy Saver Mode and reset the Idle Timer Once the Energy Saver Mode is cancelled the dispenser will display Unit Re heating E Saver Mode On and not dispense product until the water temperature has reached the normal Tank Temperature Once the normal Tank Temp is reached the dispenser will revert to typical operation and displays Optional 2 Product Operation The LCR 3 HV can be configured to deliver only two coffee products for applications where additional volume a given product is needed This feature allows the operator to load the same concentrate into the Left amp Middle position thus doubling the amount of product that can be dispensed before having to replace the concentrate The dispenser will automatically switch from one concentrate container to the other when a BIB Empty threshold is ex
25. faults CAUTION Selecting YES will RESET all Program ming Functions to the Factory Default settings 41129 021709 LOADING THE CONCENTRATE Thoroughly mix concentrate by vigorously shaking the product Bag In Box BIB Pull the BIB connector through the hole provided in the box Open the dispenser door and locate the appropriate left middle or right BIB Adapter fitting Connect the Adapter fitting to the BIB Make sure the locking mechanism is fully engaged Place the BIB upright in the machine rotating it into position with the connector down and facing forward Rotate the BIB Adapter to avoid sharp bends in the tubing and allow it to be routed between the pumps Refer to the Tube Installation Decal on the door for proper routing Close the cabinet door Fig 1 Fig 2 PRIMING THE CONCENTRATE LINES Select PRIME on the Function Selector Switch Load concentrate per instructions in the section titled Loading the Concentrate Place a container under the dispense tip Activate the appropriate pump switch until concentrate flows from the dispense tip approx 5 to 10 sec Repeat steps 2 through 4 for the other two pumps if needed Select RUN on the Function Selector Switch Note Concentrate may continue to drip out of dispense tip The user may wish to run a Rinse Cycle refer to Rinsing after Priming the dispenser to clean out the remaining concentrate
26. he menu screens Select Exit to leave the programming function and return to normal NOTE 1 Flashing menu items indicate which selection is active NOTE 2 Values shown below are the factory default values for English units NOTE 3 Values in X X are the Min and Max for that function LCD DISPLAY READY SELECT FLAVOR LEFT DISP RATIO 30 1 MID DISP RATIO 30 1 RIGHT DISP RATIO 30 1 LF DISP VOLUME 1 36 00z LF DISP VOLUME 2 192 007 LF DISP VOLUME 3 384 002 MID DISP VOLUME 1 36 00z MID DISP VOLUME 2 192 002 MID DISP VOLUME 3 384 002 RT DISP VOLUME 1 36 00z RT DISP VOLUME 2 192 002 RT DISP VOLUME 3 384 002 ACTION Hold the RT Hidden Switch for 5 seconds to enter Programming Functions Use the or buttons to adjust the Mix Ratio Use the or buttons to adjust the Mix Ratio Use the or buttons to adjust the Mix Ratio Use the or buttons to adjust the Volume Use the or buttons to adjust the Volume Use the or buttons to adjust the Volume Use the or buttons to adjust the Volume Use the or buttons to adjust the Volume Use the or buttons to adjust the Volume Use the or buttons to adjust the Volume Use the or buttons to adjust the Volume Use the or buttons to adjust the Volume DESCRIPTION N
27. ied for use as described in Programming Functions amp Basic Operations LCR 3 HV IA SELECT FERVUR 9 41129 052208 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 None Warning Only Rinse Required will be displayed 4 hrs prior to the selected time interval to remind the operator that the Rinse Procedure needs to be preformed soon The dispenser will continue to serve product even if the full time interval elapses Brew Lockout Rinse Required will be displayed 4 hrs prior to the selected time interval to remind the operator that the Rinse Procedure needs to be preformed soon However the dispenser will Lockout and not continue to serve product once the selected time interval has elapsed NOTE The time interval between Rinses is adjustable from 8 to 24 hrs The dispenser is shipped with the Rinse Alarm disabled No Alarm It is up to the user to determine the Rinse time interval and the level of warning required based on their application and maintenance procedures REPS SELECI FLAVUR Rinse Procedure 1 Select Rinse on the Function Selector switch 2 Place a 2 Liter 1 2 Gal container under the dispense tip 3 Activate any of the d
28. iner under dispense tip until all the water stops dripping 4 Measure the volume of water collected in the graduated container The acceptable range for the volume collected is 1600 to 2000 mL 5 Ifthe amount collected is not within the acceptable range empty the graduated container and repeat STEPS 1 4 6 Ifthe amount collected is still not within range inspect the dispense valves tubing and mix chamber for lime kinks or other obstructions 7 When satisfied with the volume of concentrate collected scroll down to the next menu screen 8 The CALWTR VOL screen will be displayed Use the keys to adjust number displayed to the amount measured in STEP 4 25 41129 052208 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 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 Note Increasing the threshold slightly will cause the Empty BIB warning to come on sooner Lowering the threshold will draw more concentrate from the B
29. ing the applicable parts and labor warranty periods specified above to repair the defective components provided that this repair is done by a BUNN Authorized Service Representative or 2 shall replace the equipment or refund the purchase price for the equipment THE BUYER S REMEDY AGAINST BUNN FOR THE BREACH OF ANY OBLIGATION ARISING OUT OF THE SALE OF THIS EQUIPMENT WHETHER DERIVED FROM WARRANTY OR OTHERWISE SHALL BE LIMITED AT BUNN S 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 392 AutoPOD AXIOM BrewLOGIC BrewMETER Brew Better Not Bitter BrewWISE BrewWIZARD BUNN Espress BUNN Family Gourmet BUNN Gourmet BUNN Pour O Matic BUNN BUNN with the stylized red line BUNNlink Bunn OMatic 0 BUNNserve BUNNSERVE with the stylized wrench design Cool Froth DBC Dr Brew stylized Dr design Dual Easy Pour EasyClear EasyGard FlavorGard Gourmet Ice Gourmet Juice High Intensity iMIX Infusion Series Intellisteam My Caf PowerLogic Quality Beverage Equipment Worldwide Respect Earth Respect Earth with the styl ized leaf and coffee cherry design Safety Fresh savemycoffee
30. ispense switches until the water flow stops automatically approximately 10 sec The Rinse Alarm message will go away when the Rinse procedure has been satisfied 4 Select Run on the Function Selector switch 10 41129 120909 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 The dispenser will now Lockout dispensing and display RIGHT MIDDLE or LEFT BIB EMPTY Replace Now Once the BIB has been replaced PRIME the concentrate line refer to Priming the Concentrate Lines to clear the Empty BIB warning NOTE If the BIB Empty warning reappears repeat the Priming operation a second time to insure the concentrate is flowing properly Brew Temperature Lockout Feature The dispenser can be set to not dispense product if the hot water is not up to the preset READY temperature To enable this feature set the READY temperature to the minimum allowable dispense temperature Then enable the Brew Lockout feature refer to READY TEMP and BREW LOCKOUT in Programming the Dispenser The dispenser will display HEATING Please Wait and not allow dispensing until the tank temperature reaches the preset READY temperature Energy Saver Mode The LCR 3 HV can b
31. le with no loops bends or kinks in it 3 Insure that the outlet of the hose is below the dispense tip and that the mixed product flows freely into the container 4 A properly sized and positioned hose will not run full or back up into the dispense tip Failure to follow these directions can alter the mix ratio and or cause flooding of the vent tube NOTE Recovery time will be dependent on the temperature of the supply water and the supply voltage to the dispenser 18 41129 052208 CLEANING amp 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 Daily RINSING amp CLEANING 1 Select RINSE on the Function Selector Switch 2 Place a 1 2 gal 2 liter container under the dispense nozzle 3 Press and Hold any flavor selection switch for approximately twenty seconds or until the hot water is clear or has no concentrate coloring in it 4 Wipe splash panels dispense nozzle door and cabinet with a clean sanitary cloth Note To clear the Rinse alarm activate the dispenser until the flow stops automatically approx 20 seconds The Rinse alarm display will turn off when the Rinse Procedure has been satisfied Weekly SANITIZING 1 Select PRIME on the Function Selector Switch and open the di
32. manent If an intermittent condition is encountered the cause will likely be a switch contact or a loose wire connection at a terminal or crimp Solenoid removal requires interrupting the water supply to the valve Damage may result if solenoids are energized for more than ten minutes without a supply of water e The use of two wrenches is recommended whenever plumbing fittings are tightened or loosened This will help avoid twists and kinks in the tubing certain that all plumbing connections are sealed and all electrical connections are tight and isolated e This dispenser is heated at all times Keep away from combustibles WARNING e Exercise extreme caution when servicing electrical equipment e Disconnect the brewer from the power source when servicing except when electrical tests are specified e Follow recommended service procedures e Replace all protective shields or safety notices Screen Displayed Possible Cause Troubleshooting Procedures NO DISPLAY No Power to the Dispenser Check Master ON OFF Switch Check Power Cord amp Circuit Breaker Service Required HEATING Water temp is below the preset Wait for water temp to rise Please Wait READY temp Check Ready Temp threshhold setting Service Required RINSE REQUIRED Rinse Alarm Time Interval has Rinse Dispenser see Rinse Procedure expired Replace BIB see Loading the Concentrate XXXX BIB EMPTY Concentrate BIB is empty Replace BIB see Loading the Conce
33. ntrate Replace BIB Soon BIB not properly connected Check BIB Connector Fittings Tubing kinked or blocked Check Tubing Installation Empty BIB Threshhold too high Check Empty BIB Threshhold see Field Calibrating the Epmty BIB Warning TARGET RPM The calculated Target RPM for Check Pump amp Flow Rate Calibration refer TOO HIGH the pump indicated is out of to Field Calibration Procedures range 29 41129 052208 Troubleshooting Continued Screen Displayed Possible Cause Troubleshooting Procedures TARGET RPM The calculated Target RPM for the Check Pump amp Flow Rate Calibration refer TOO LOW pump indicated is out of range to Field Calibration Procedures PUMP FAULT Pump Motor failure Service Required CHK PUMP WIRING CHK RPM SENSOR RPM Sensor failure Service Required CHK TUBING AREA Tubing pinched in rollers Replace Tubing OVERFLOW Refill valve stuck open Service Required FAULT Faulty refill probe Service Required Faulty overflow switch Service Required HEATING TIME Tank Heater failure Service Required TOO LONG Triac failure Service Required CHECK HEATING CIRCUIT Tank Temp sensor failure Service Required FILL TIME Water shut off to dispenser Check water supply valve TOO LONG CHECK WATER Inlet Solenoid Valve failure Service Required SUPPLY TANK SENSOR Corresponding Temperature Service Required OUT OF RANGE Sensor Probe wire s broken or disconnected CHECK FOR BAD CONNECTIONS
34. ormal Display for LCR models Enter the desired Mix Ratio for the concentrate used in the Left dispenser 20 1 100 1 Enter the desired Mix Ratio for the concentrate used in the Middle dispenser 20 1 100 1 Enter the desired Mix Ratio for the concentrate used in the Right dispenser 20 1 100 1 Set the desired SMALL portion control volume 0 640 07 or 0 18 93L Set the desired MEDIUM portion control volume 0 640 07 or 0 18 93L Set the desired LARGE portion control volume 0 640 07 or 0 18 93L Set the desired SMALL portion control volume 0 640 07 or 0 18 93L Set the desired MEDIUM portion control volume 0 640 07 or 0 18 93L Set the desired LARGE portion control volume 0 640 07 or 0 18 93L Set the desired SMALL portion contro volume 0 640 07 or 0 18 93L Set the desired MEDIUM portion control volume 0 640 07 or 0 18 93L Set the desired LARGE portion control volume 0 640 07 or 0 18 93L 41129 071409 PROGRAMMING Continued LCD DISPLAY TANK TEMP 190 EXIT READY TEMP 180 EXIT CABINET TEMP 38 EXIT ACTION DESCRIPTION Use the or buttons to Sets the water Tank temperature adjust the target Temp 120 200 F or 49 93 C Use the or buttons to Sets the hot water Ready temperature adjust the target Temp Typically set to the min desired dispense temp Use the
35. r mL L deg Select OFF to temporarily override a cooling system fault and allow the machine to dispense coffee ice builds up on the evaporator decrease the delay If the cabinet is not cold enough increase the delay Factory Default 120 2 hrs min 30 max 180 Selecting Yes will enable the Rinse Alarm function see Rinse Alarm Enter the desired time between required Rinse Cycles in hours 8 to 24 hrs Select YES to Lockout dispensing until the Rinse Alarm has been cleared Default is NO 41129 071409 PROGRAMMING Continued LCD DISPLAY ACTION BibEMPTY LOCKOUT Select YES to enable NO EXIT YES BREW LOCKOUT Select YES to enable NO EXIT YES ENERGY SAVER MODE Select ON to enable NO EXIT YES E SAVER IDLE TIME Use the or buttons to 4HRS adjust the Idle Time E SAVER TANK TEMP Select OFF or 140 F 60 C NO EXIT 140 DESCRIPTION Select YES to Lockout dispensing until the BIB is replaced and the pump has been Primed Default is NO Select YES to Lockout dispensing until the hot water tank is at READY Temp Default is NO Select ON to enable Energy Saver Mode Default is OFF Enter the amount of inactive time before the dispenser goes into Energy Saver Mode Default is 4 hrs Maximum is 24 hrs Choose OFF to turn the tank heaters off completely or 140 F 60 C to hold hot water at 140 F 60 C during E Saver Mode Default is 140 F 60 C 41129 071409
36. spenser door 2 Remove the bag connector from the product BIB and disassemble or prop open the internal valve to allow flow of product through the connector NOTE Cutting the mating fittings from an empty bag makes an excellent free flowing connector for this purpose 3 Place the bag connector into a one gallon 3 8 liter container of warm soapy tap water 140 F 60 C 4 Place an empty container under dispense tip and activate the corresponding pump until the clean soapy water is dispensed from the dispense tip 5 Repeat steps 3 and 4 with warm tap water 140 F 60 C to rinse the soapy water from the pump tubing 6 Continue dispensing until the water is clear and no soapy water is being dispensed 7 Prepare 2 5 gallons 9 46L of sanitizing solution by dissolving 1 packet of Kay 5 sanitizer into 2 5 gallons 9 46L of 120 F 48 9 C water to ensure 100 ppm of available chlorine 8 Again repeat steps 3 and 4 with the sanitizing solution Once sanitizing solution is visible continue to dispense for 1 minute Release handle and allow solution to sit for 5 minutes 9 After soaking for 5 minutes activate the dispense switch a second time this time for 2 minutes After 2 minutes release the dispense switch 10 Repeat steps 5 amp 6 wit warm tap water to flush out the sanitizing solution from the pump tubing 11 Reattach the bag connector to product BIB 12 Close the dispenser door and select NORMAL on the Function Selec
37. the U S A you must comply with the applicable Plumb ing Sanitation Code for your area 00656 0001 CAUTION Do not connect to a circuit operating at more than 150 volts to ground 27508 0000 Risk Of Electrical Shock 00824 0002 Moving Parts Do not operate unit with this panel removed Disconnect power before servicing unit 27442 0000 CHARGE R134A Amount 13 368 6 gm Design Pressures High 276 psi 19 bar 1 9 MPa Low 88 psi 6 bar 0 61 MPa 33461 0004 TO MACHINE BLOCK FROM POWER SOURCE FROM POWER SOURCE FOR 3 PHASE OPERATION CONNECT INPUT WIRING TO L1 L2 L3 amp N AS SHOWN FOR SINGLE PHASE OPERATION MOVE BLU WIRE INTO TERMINAL BLOCK WITH BLACK WIRE CONNECT INPUT WIRING TO L1 L2 amp NAS SHOWN 37947 0002 41129 060111 ELECTRICAL REQUIREMENTS CAUTION The dispenser must remain disconnected from power source until specified in Electrical Hook Up The LCR 3 HV is shipped configured for 3 Phase operation The internal terminal block must be rewired for 208 240V 1Phase applications see Optional Field Wiring Diagram FIELD WIRING TERMINAL BLOCK DIAGRAM TO MACHINE TERMINAL BLOCK FROM POWER SOURCE FROM POWER SOURCE Fig 1 Fig 2 For all 208 240 Volt Connections Use No 6 AWG Wires suitable for 90 C 194 F 1 Unit is shipped wired for 3 Phase 5 wire operation 2 For 208 240V 1 Phase Wire Move
38. tor Switch 13 Activate the dispenser until concentrate water mixture appears Then dispense 20 ounces 600 ml container of concentrate water mixture and discard 14 Repeat steps 1 through 13 for other two Pumps 15 Wipe internal and external surfaces with a clean sanitary cloth Weekly REFRIGERATION AIR FILTER 1 Remove the screen filter from the bottom of the dispenser 2 Wash the screen in a mild detergent solution 3 Use a soft bristled brush to remove all dust and grease 4 Reinstall the screen PREVENTIVE MAINTENANCE 0 Corporation recommends that preventive maintenance be performed at regular intervals Maintenance should be performed by a qualified service technician For Technical Service contact Bunn O Matic Corporation at 1 800 286 6070 NOTE Replacement parts or service caused by failure to perform required maintenance is not covered by warranty Replace pump hoses every 6 Months or as needed 19 41129 030910 REPLACING THE PUMP TUBING The pumps and tubing used in this dispenser are designed to give maximum performance and long life However the tubes are a wear item and must be replaced periodically How long the tubes last is dependent on usage and properties of the concentrate Excessive wear will reduce the output of the pumps resulting in a weak mixed beverage 0 recommends replacing the Pump Tubing a minimum of once every 6 months or sooner if warranted Refer to
39. uired Service Required Service Required Service Required Clean Air Filter Check wiring harness for breaks shorts open connectors Service Required Check pump amp tubing for proper installation Clean probes Dispense switch failure Service Required Dispense valve leaking Service Required Service Required 41129 052208 Field Calibration of the Concentrate Pumps Dispenser Flow Rates The factory set Default Values for the Pump amp Dispenser Flow Rates are very accurate and typically do not need to be field calibrated 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 Simply scroll through the menu screen to the desired section and perform only those steps Calibrating the Left Concentrate Pump 1 Select PRIME on the Function Selector Switch refer to Priming the Concentrate Lines 2 Place acontainer under the Dispense Tip and prime the concentrate lines until a steady stream of concentrate comes out the tip approximately 10 seconds 3 Stop the Priming and allow the tip to stop dripping Discard the concentrate collected 4 Select NORMAL on the Function Selector Switch 5 Locate the programming module and use th
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