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Bunn LCA-2 LCC-2 manual

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Table of contents for the manual

  • Page 1

    INST ALLA TION & OPERA TING MANUAL BUNN-O-MA TIC CORPORA TION POST OFFICE BOX 3227 SPRINGFIELD, ILLINOIS 62708-3227 PHONE: (217) 529-6601 FAX: (217) 529-6644 www .bunnomatic.com BUNN ® 34766.0000 12/02 ©2002 Bunn-O-Matic Corporation LCA-2 LCC-2 ! WARNING HOT LIQUIDS ! A V E R T IS S E M E N T L IQ U ID E S C H A U D S P O W E R R E A D Y P O [...]

  • Page 2

    2 BUNN-O-MATIC 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 parts and 1 year lab[...]

  • Page 3

    3 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. 00656.0000 00986.0002 11646.0002 ! W ARNING DO NO T O VERLOAD CIRCUIT . AL W A YS ELECTRICALL Y GROUND THE CHASSIS OR AD APT [...]

  • Page 4

    4 ELECTRICAL REQUIREMENTS CAUTION: The dispenser must remain disconnected from the power source until specified in Electrical Hook-Up. The LCA-2 and LCC-2 dispensers are supplied with a 120-volt / 15 Amp cord set and require a 2-wire, grounded, individual branch circuit rated for 120 volts AC, 15 amp, single phase, 60Hz. The mating connector must b[...]

  • Page 5

    5 INITIAL SET -UP NOTE: The LCC-2 (Chilled Unit) weighs approximately 80 lbs. (36.3 kg) and the LCA-2 (Ambient Unit) weighs approximately 70 lbs. (31.8 kg). If necessary, use more than one person when lifting or moving the dispenser. 1. Locate and remove the information packets and tube kits from top of packaging and set aside. 2. Remove foam packi[...]

  • Page 6

    6 SETTING DISPENSER FLOW RA TE The dispenser comes from the factory with flow restrictors in the mix chambers. With the restrictors in place the dispense rate is about 1.8 oz./sec (53.2 ml/sec) and is used primarily for cup at a time dispensing. The flow restrictors can be removed to increase the dispense rate to about 2.5 oz./sec (74 ml/sec) for l[...]

  • Page 7

    7 SELECTING THE CORRECT PUMP TUBING There are two pump tube sizes available for use with this dispenser. To determine the correct tubing for you application, first determine the dispenser flow rate you intend to use, refer to Setting Dispenser Flow Rate . Then look up the recommended tube size for the mix ratio of your concentrate, refer to the Tub[...]

  • Page 8

    8 OPERA TING CONTROLS AND INTERF ACE 1. Dispense Handles: Pull and Hold to dispense product. 2. Stop Switch: Momentary switch stops all dispense functions. 3. Hot Water Switch: Push and Hold switch to dispense hot water from the center dispense tip. 4. Portion Control Switch: Momentarily pushed by user to activate Portion Control Mode 5. Function S[...]

  • Page 9

    9 INITIAL FILL & HEA T 1. Select Normal on the Function Selector Switch and Run on the Mode Selector Switch. 2. Confirm the water supply is on. 3. Connect the dispenser to the power source. The Red POWER LED will illuminate and water will begin flowing into the tank. The dispenser will automatically stop filling when the tank is full. The dispe[...]

  • Page 10

    10 FlavorGard™ Feature FlavorGard™ is a patented feed back control loop that monitors the mixed product and adjusts the concentrate deliver y rate to maintain a consistent mix profile, i.e. Flavor Profile. The system consists of a conductance probe mounted in the final stages of the mixing chamber , a metering pump with RPM sensor and a digital[...]

  • Page 11

    11 34766 112502 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, Disabled, W arning Only and W arning with Brew Lockout, see chart for details. Alarm Level Selected Alarm Mode Disa[...]

  • Page 12

    12 PROGRAMMING THE DISPENSER Remove the lower splash guard assembly to access the digital programming module with LCD display. Press the Down Arrow key to inter the programming menu. Use the Up and Down Arrow keys to scroll through the menu screens. Select Exit to leave the programming function and return to normal operations. NOTE 1: Flashing menu[...]

  • Page 13

    13 MENU SCREEN ACTION DESCRIPTION ENTER PASSWORD (-) 0 (+) The following functions can be Password Protected if warranted. LOCK FLAVOR ? EXIT YES FLAVORS LOCKED EXIT LF DISP VOLUME (-) 0.0oz (+) RT DISP VOLUME (-) 0.0oz (+) TANK TEMP 180 (-) EXIT (+) READY TEMP 175 (-) EXIT (+) CABINET TEMP 65 (-) EXIT (+) LF PRODUCT DISP 0GAL RESET? LF PRODUCT DIS[...]

  • Page 14

    14 SET PASSWORD ? (-) 0 (+) SELECT UNITS ENG EXIT METRIC CHILLED UNIT ? NO EXIT YES RINSE ALARM ? NO EXIT YES MENU SCREEN ACTION DESCRIPTION CAL LEFT PUMP ? PULL DISPENSER CAL LF PUMP VOL (-) 20mL (+) CAL LF WTR FLOW PULL DISPENSER If NO - go to CAL RIGHT SIDE menu. CAL LEFT SIDE ? EXIT YES The following functions are for diagnostic and troubleshoo[...]

  • Page 15

    15 MENU SCREEN ACTION DESCRIPTION CAL LF WTR VOL (-) 36.0OZ (+) CAL LEFT SIDE ? EXIT YES CAL RIGHT SIDE ? EXIT YES CAL RIGHT PUMP ? PULL DISPENSER CAL RT PUMP VOL (-) 20mL (+) CAL RT WTR FLOW PULL DISPENSER CAL RT WTR VOL (-) 36.0OZ (+) CAL RIGHT SIDE ? EXIT YES XXX CAL -> XXX (-) TankTemp (+) XXX CAL -> XXX (-) ColdTemp (+) XXX CAL -> XXX[...]

  • Page 16

    16 MENU SCREEN ACTION DESCRIPTION BIB EMPTY -> 400 (-) EXIT (+) 0 REFILL -> 155 (-) EXIT (+) WTR START DELAY (-) .15SEC (+) WTR STOP DELAY (-) .15SEC (+) TEST LED’S ? NO EXIT YES TEST SWITCHES ? UseSwitchToTest TEST REFILL ? EXIT YES TEST HEATER ? EXIT YES FACTORY DEFAULTS NO YES Use the (+) or (-) buttons to adjust empty BIB threshold Use [...]

  • 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 and place it on the drip tray with the connector facing up. (See Fig. 1) 3. Open the dispenser door and locate the appropriate left or right BIB Adapter fitting. 4. Pull the Ada[...]

  • Page 18

    18 OPERA TING THE DISPENSER Set the Function Selector Switch to Normal and the Mode Selector Switch to Run . 1. Pull and Hold Dispense Mode (Cup at a time) a. Place cup on the cup tray beneath the desired dispensing tip. For a large container, flip the cup tray up and place the container on top of the drip tray. b. Pull and Hold the corresponding d[...]

  • 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, which lights the Rinse LED on the front panel and disables dispensing when it is time to rinse. See Programming Functions to activate this feature. Daily: RINS[...]

  • Page 20

    20 REPLACING THE PUMP TUBING The pumps and tubing used in the 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 wea[...]

  • 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 front splash panel. 4. Pull out drain tube to empty into a sink or a container with a minimum of five-gallo[...]

  • Page 22

    22 T roubleshooting 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 ele[...]

  • Page 23

    23 OVERFLOW CUP FULL. EMPTY CUP HEATING TIME TOO LONG CHECK HEATING CIRCUIT FILL TIME TOO LONG CHECK WATER SUPPLY TANK TEMP SENSOR OUT OF RANGE CHECK FOR BAD CONNECTIONS COOL TEMP SENSOR OUT OF RANGE CHECK FOR BAD CONNECTIONS 1. Refill valve stuck open 2. Faulty refill probe 3. Faulty overflow switch 1. Tank Heater failure 2. Triac failure 3. Tank [...]

  • Page 24

    24 Screen Displayed Possible Cause Troubleshooting Procedures Service Required Service Required Check to confirm that wire(s) are not pinched between two surfaces or connected to each other. Service Required Service Required Service Required Service Required Service Required Remove blockage source Move machine to cooler location Service Required Se[...]

  • Page 25

    25 Field Calibration of the Concentrate Pumps / Dispenser Flow Rates The factory set Default Values for the Pump & 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: 5[...]

  • Page 26

    26 34766 112502 Dispenser Flow Rate Calibration 13. Press Down Arrow Key to display the CAL LF WTR FLO menu screen. 14. Place a 64 Oz (2000 ml) graduated container under Left Dispense Tip and Pull the Left Dispense Handle momentarily. The dispenser will dispense water for 20 seconds and then shut OFF automatically. 15. Keep the graduated container [...]

  • Page 27

    27 34641.0000C 12/02 © 2002 BUNN-O-MATIC CORPORATION 120 VOLTS AC 2 WIRE 120/208-240 VOLTS AC 3 WIRE 208-240 VOLTS AC 2 WIRE SINGLE PHASE 50/60HZ J14-1 J14-7 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 J16-1 J16-5 J16-12 DOOR PORTION CONTROL ORN BL[...]

  • Page 28

    28 34641.0001B 12/02 © 2002 BUNN-O-MATIC CORPORATION J14-1 J14-7 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 J16-1 J16-5 J16-12 DOUBLE POLE LIMIT THERMOSTAT ORN BLK BLK BLK BLK WHI WHI TAN TAN BLK GRY GRN RED SOL RED RED RED RED RED SOL SOL SOL LEF[...]