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Bunn LCR-3 manual

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Table of contents for the manual

  • Page 1

    LCR-3 HV INST ALLA TION & OPERA TING GUIDE BUNN-O-MA TIC CORPORA TION POST OFFICE BO X 3227 SPRINGFIELD , ILLINOIS 62708-3227 PHONE: (217) 529-6601 F AX: (217) 529-6644 T o 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 w[...]

  • Page 2

    2 41129 050511 BUNN-O-MA TIC COMMERCIAL PRODUCT WARRANTY Bunn-O-Matic 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 part[...]

  • Page 3

    3 INTRODUCTION 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 Warranty ....[...]

  • Page 4

    4 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 ONL Y 120/208Y V , 32.8 A, 12000 W 3PH, 4-Wire + GND, 60HZ 28181.0004 37947.0002 USER NOTICES Carefully read and follow all notices on the equipment and in this manual. They were written[...]

  • Page 5

    5 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 For [...]

  • Page 6

    6 ELECTRICAL HOOK-UP CAUTION: Improper electrical installation will damage electronic components. 1. An electrician must provide electrical ser vice 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[...]

  • Page 7

    7 INST ALLING THE PUMP TUBING (Refer to the T ubing 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. 3. Apply[...]

  • Page 8

    8 OPERA TING CONTROLS AND INTERF ACE 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 dia[...]

  • Page 9

    9 INITIAL FILL & HEA T 1. Confirm the water supply is on. 2. Connect the dispenser to the power source. 3. T urn the Master ON/OFF Switch ON and select RUN on the Function Selector Switch. The LCD will display “T ank Filling – Please Wait!” and water will begin flowing into the tank. 4. Once the tank is full the dispenser will start hea[...]

  • Page 10

    10 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 operati on; see Programm ing the Dispenser to select the desired alarm mode. Alarm Level Alarm Mode Disabled None Warning Only “Rinse Req[...]

  • Page 11

    11 BIB Empty Lockout Feature The dispenser can be set to not dispense product when the concentrate BIB is empty . T o 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 [...]

  • Page 12

    12 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. NOTE 1: Flashing menu items indicate which selection is active. NOTE 2: Values shown below are [...]

  • Page 13

    13 ENTER P ASSWORD (-) 0 (+) SET P ASSWORD ? (-) 0 (+) 2 OR 3 PRODUCTS? (2) EXIT (3) SELECT UNITS ENG EXIT METRIC REFRIGERA TION ? ON EXIT OFF DEICE CYCLE TIME (-) 120 MIN (+) RINSE ALARM ? NO EXIT YES RINSE TIME ? (-) 12 HRS (+) RINSE LOCKOUT ? NO EXIT YES The following functions can be Password Protected. If you wish to prevent others from access[...]

  • Page 14

    14 PROGRAMMING (Continued) BibEMPTY LOCKOUT NO EXIT YES BREW LOCKOUT ? NO EXIT YES ENERGY SA VER MODE NO EXIT YES E-SA VER IDLE TIME (-) 4 HRS (+) E-SA VER T ANK TEMP NO EXIT 140 Select (YES) to enable Select (YES) to enable Select (ON) to enable Use the (+) or (-) buttons to adjust the Idle Time Select OFF or 140° F (60°C) Select YES to Lockout [...]

  • Page 15

    15 LCD DISPLA Y ACTION DESCRIPTION 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. PROGRAMMING (Continued) CAL LEFT PUMP ? LEFT CAL LF PUMP VOL (-) 58mL (+) CAL MIDDLE PUMP ? MIDDLE CAL MID PUMP[...]

  • Page 16

    16 LCD DISPLA Y ACTION DESCRIPTION PROGRAMMING (Continued) XXOVERFLOW > 155 (-) EXIT (+) XX REFILL -> 155 (-) EXIT (+) WTR ST ART DELA Y (-) .15SEC (+) WTR STOP DELA Y (-) .15SEC (+) TEST SWITCHES ? UseSwitchT oT est TEST REFILL ? EXIT YES TEST HEA TER ? EXIT YES ENTER ASSET # (-) 000000 (+) SERIAL # LCR 0000000 VIEW F AUL TS? (-) EXIT (+) LA[...]

  • Page 17

    17 LOADING THE CONCENTRA TE 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. Connect the Adapter fitting to the BIB. Make sure the locking mechanism is[...]

  • Page 18

    18 FILLING CAMBROS OR OTHER LARGE CONT AINERS 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 co[...]

  • Page 19

    19 CLEANING & PREVENT A TIVE 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 & CLEANING 1. Select RINSE [...]

  • Page 20

    20 REPLACING THE PUMP TUBING The pumps and tubing used in this dispenser are designed to give maximum per formance 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 w[...]

  • Page 21

    21 DRAINING THE HOT W A TER T ANK 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. Pull out drain tube to empty into a sink or a container with a minimum of 18 [...]

  • Page 22

    22 Check Pump & Flow Rate Calibration, refer to Field Calibration Procedures The calculated T arget RPM for the pump indicated is out of range ____ T ARGET RPM TOO HIGH !! Replace BIB, see Loading the Concentrate Check BIB Connector Fittings Check T ubing Installation Check Empty BIB Threshhold, see Field Calibrating the Epmty BIB Warning Conce[...]

  • Page 23

    23 T roubleshooting (Continued) Service Required Service Required Replace T ubing 1. Pump Motor failure 2. RPM Sensor failure 3. T ubing pinched in rollers ____ PUMP F AUL T CHK PUMP WIRING CHK RPM SENSOR CHK TUBING AREA Check Pump & Flow Rate Calibration, refer to Field Calibration Procedures The calculated T arget RPM for the pump indicated i[...]

  • Page 24

    24 EV AP TEMP SENSOR OUT OF RANGE CHECK FOR BAD CONNECTIONS CHECK WIRE FOR SHORTS COOL TEMP SENSOR OUT OF RANGE CHECK FOR BAD CONNECTIONS CHECK WIRE FOR SHORTS COOLER F AUL T! EV AP TEMP TOO HI CHECK EV AP F AN CHK EV AP SENSOR COOLING TIME TOO LONG CHECK AIR FIL TER CHECK COOLING UNIT Service Required Service Required Service Required Clean Air Fi[...]

  • Page 25

    25 Field Calibration of the Concentrate Pumps / Dispenser Flow Rates The factory set Default Values for the Pump & Dispenser Flow Rates are ver y 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 Require[...]

  • Page 26

    26 Field Calibrating the Empty BIB W arning 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[...]

  • Page 27

    27 41129 110608 41172.0000C 10/08 © 2008 BUNN-O-MATIC CORPORA TION 208-240 VOL TS AC 3 WIRE + GND SINGLE PHASE 60HZ or 208-240 VOL TS AC 4 WIRE + GND THREE PHASE 60HZ J14-1 J14-7 J18-1 J18-9 J18-5 J18-7 J7-1 J7-5 J7-10 J2-1 J2 -8 J3-1 J3-6 J4-1 J4-5 J5-1 J5-3 J6-1 J6-5 J6-10 J6-15 J6-20 J1-1 J1-4 J15-1 J15-4 C O N T R O L P C B O A R D J8-1 J8-3 J[...]