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Bunn LCR-2 Installation And Operating Manual

Other manuals for LCR-2: Illustrated Parts Catalog
Manual is about: Bunn LCR-2: Reference Guide

Summary of LCR-2

  • Page 1

    ! W arni ng hot liq uids ! A ver tis sem ent liq uid es cha uds po we r re ad y po rt ion rin se re fil l st op ! Ho t w at er lcr-2 lcr-2a lcr-2 pc lcr-2a pc installation & operating guide bunn-o-matic corporation post office box 3227 springfield, illinois 62708-3227 phone: (217) 529-6601 fax: (217...

  • Page 2

    2 36026 050511 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) compresso...

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    3 introduction the liquid coffee refrigerated dispenser delivers two types of coffee made from liquid concentrate plus hot water. The dispenser can be set up for continuous draw (by the cup) for self-serve applications, or portion- control to fill carafes and decanters for wait staff. Follow the con...

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    4 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. 00656.0001 00986.0002 11646.0002 37881.0000 as directed in the international plum...

  • Page 5

    5 electrical requirements caution: the dispenser must remain disconnected from power source until specified in electrical hook-up. The lcr-2 dispenser is 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,...

  • Page 6

    6 l1 l2 l3 n l1 for 3-phase operation connect input wiring to l1,l2,l3 & n as shown. For 1-phase/15 amp. Operation connect input wiring to l1 & n as shown. N red brn blu terminal block to machine from power source to machine from power source l1 l2 l3 n blk red brn blk brn blu l2 l3 blk l1 l2 l3 n l...

  • Page 7

    7 initial set-up note: the lcr-2 dispenser weighs approximately 100 lbs. (45 kg). If necessary, use more than one person when lifting or moving the dispenser. 1. Cut the two straps and remove the box and foam packing. 2. Locate and remove the information packets and tube kits from top of packaging a...

  • Page 8

    8 setting dispenser flow rate 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 dis...

  • Page 9

    9 selecting the correct pump tubing there are two pump tube sizes available for use with this dispenser. To determine the correct tubing for your 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 t...

  • Page 10

    10 operating controls and interface 1a. Dispense handles: pull and hold to dispense product. 1b. Dispense switches: push and release to dispense product for portion control models. 2. Stop switch: momentary switch stops all dispense functions. 3a. Hot water switch: push and hold switch to dispense h...

  • Page 11

    11 initial fill & heat 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...

  • Page 12

    12 flavorgard™ feature flavorgard™ is a patented feed back control loop that monitors the mixed product and adjusts the concentrate delivery 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...

  • Page 13

    13 rinse procedure: 1. Open the cabinet door and select rinse on the function selector switch – close the door. 2. Place a 2 liter (1/2 gal) container under the left dispense tip. 3. Activate the left dispense until water flow stops automatically, approximately 20 sec. 4. Repeat steps 2 & 3 for the ...

  • Page 14

    14 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 ...

  • Page 15

    15 menu screen action description lock flavor ? Exit yes flavors locked exit select (yes) or (exit) none select yes, to lock in sensor calibration. Note: display will return to “find lf target” if sensor calibration is out of range. Confirms that sensor calibration was in range and accepted. Scroll ...

  • Page 16

    16 enter password (-) 0 (+) 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. Use the (+) or (-) butto...

  • Page 17

    17 36026 120105 menu screen action description cal left pump ? Pull dispense cal lf pump vol (-) 43ml (+) cal lf wtr flow ? Pull dispenser cal lf wtr vol (-) 36.0oz (+) cal left side ? Exit yes cal right side ? Exit yes if no - go to cal right side menu. Cal left side ? Exit yes the following functi...

  • Page 18

    18 36026 120105 menu screen action description cal right pump ? Pull dispenser cal rt pump vol (-) 43ml (+) cal rt wtr flow pull dispenser cal rt wtr vol (-) 36.0oz (+) cal right side ? Exit yes cal hot wtr flo ? Pull dispense cal hot wtr vol (-) 34.0oz (+) xxx cal -> xxx (-) tanktemp (+) place a 50...

  • Page 19

    19 menu screen action description 36026 073107 bib empty -> 500 (-) exit (+) xx 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 enter asset # (-) 000000 (+) ...

  • Page 20

    20 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 and place it on the drip tray with the connector facing up. (see fig. 1) 3. Open the dispenser door and locate the appropriate l...

  • Page 21

    21 filling cambros or other large containers: the dispenser is designed primarily for cups or other small containers that will fit under the dispense tips. However, it may be used to fill larger containers (up to 2 gal) by use of an extension hose on the dispense tip. Removing the flow restrictors w...

  • Page 22

    22 operating the preset portion control dispenser (models lcr-2 pc, lcr-2c pc, lcr-2a pc) set the function selector switch to normal and the mode selector switch to run. Dispensing preset portions of coffee or hot water 1. Primary volume portion dispense mode. (volume 1) refer to programming functio...

  • Page 23

    23 cleaning & preventative 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 function...

  • Page 24

    24 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 r...

  • Page 25

    25 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 front splash panel. 4. Pull out drain tube to empty into a s...

  • Page 26

    26 activate the dispenser within 5 sec. To dispense the pre-selected volume. Front panel led display messages alternate portion dispenser volume #2 has been selected portion led “on” portion dispense enabled rinse dispenser, see rinse procedure dispenser locked out rinse cycle required rinse led “fl...

  • Page 27

    27 troubleshooting (continued) replace bib, see loading the concentrate check bib connector fittings check tubing installation check threshold, see field calibrating the empty bib warning concentrate bib is empty. Bib not properly connected tubing kinked or blocked empty bib warning set too high rig...

  • Page 28

    28 lf target rpm too high !! Tube too small check disp ratio rt target rpm too high !! Tube too small check disp ratio lf target rpm too low !! Tube too large check disp ratio rt target rpm too low !! Tube too large check disp ratio 1. The tube size selected for the left hand dispenser is too small ...

  • Page 29

    29 screen displayed possible cause troubleshooting procedures troubleshooting (continued) 36026 041204 service required service required service required service required service required service required check water supply shut-off service required service required service required 1. Refill valve ...

  • Page 30

    30 evap temp sensor out of range 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 1. Corresponding temperature sensor probe wire(s) shorted to housing, or to each other. 2. Evaporator temperature too high. 1...

  • Page 31

    31 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 recalibrat...

  • Page 32

    32 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 automatical...

  • Page 33

    33 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 flavorgard tm sensor reading drops below the minimum setting. The fa...

  • Page 34

    34 36026 062210 36025.0004a 07/10 © 2010 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 j18-1 j18-6 j18-7 j2-1 j2 -8 j3-1 j3-6 j4-1 j4-5 j5-1 j5-3 j6-1 j6-5 j6-1 0 j6-1 5 j6-2 0 j1-1 j1-4 j15-1 j15-4 c...

  • Page 35

    35 36026 060611 36025.0001h 06/11 © 2003 bunn-o-matic corporation 230 volts ac 2 wire single phase 50hz j14-1 j14-7 j7-1 j7-5 j7-10 j18-1 j18-6 j18-7 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 do...

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    36 36026 073107.