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Инструкция обслуживания Bunn LCA-2

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Summary
  • Bunn LCA-2 - page 1

    ! WA RNI N G HOT LIQU I DS ! A V E R T I SS E ME N T L I Q UI DE S C HA U DS P O W E R R E A D Y P O R T I ON R I N S E R E F I L L S T O P ! H O T WA T E R INST ALLA TION & OPERA TING MANUAL BUNN-O-MA TIC CORPORA TION POST OFFICE BOX 3227 SPRINGFIELD, ILLINOIS 62708-3227 PHONE: (217) 529-6601 F AX: (217) 529-6644 www .bunnomatic.com 34766.0000 ...

  • Bunn LCA-2 - page 2

    2 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 parts and 1 year ...

  • Bunn LCA-2 - 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 37881.0000 INTRODUCTION The Liquid Coffee Ambient Dispenser (LCA-2) and the Liquid Coffee Chilled ...

  • Bunn LCA-2 - 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 cir cuit rated for 120 volts AC, 15 amp, single phase, 60Hz. The mating connector mus ...

  • Bunn LCA-2 - page 5

    5 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. A shut-off valve should be installed in the line before the dispenser . Install a regulator in the line when pressure is greater than 90 psi (620 kPa) ...

  • Bunn LCA-2 - page 6

    6 SETTING DISPENSER FLOW RA TE The dispenser comes from the factor y 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) fo ...

  • Bunn LCA-2 - page 7

    7 SELECTING THE CORRECT PUMP TUBING There are two pump tube sizes available for use with this dispenser . T o 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 ...

  • Bunn LCA-2 - page 8

    8 OPERA TING CONTROLS AND INTERF ACE 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 hot water from the center dispense tip. 3b. Push a ...

  • Bunn LCA-2 - 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 sour ce. 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 d ...

  • Bunn LCA-2 - page 10

    10 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 metering pump with RPM sensor and a digit ...

  • Bunn LCA-2 - page 11

    11 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 dispenser until water flow stops automatically , approximately 20 sec. 4. Repeat Steps 2 & 3 for the Right dispense tip. The Rinse LED will t ...

  • Bunn LCA-2 - 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 men ...

  • Bunn LCA-2 - page 13

    13 MENU SCREEN ACTION DESCRIPTION LOCK FLA VOR ? EXIT YES FLA VORS LOCKED EXIT LF DISP VOLUME (-) 4.0oz (+) RT DISP VOLUME (-) 4.0oz (+) LF DISP VOLUME 1 (-) 4.0oz (+) LF DISP VOLUME 2 (-) 0.0oz (+) RT DISP VOLUME 1 (-) 4.0oz (+) RT DISP VOLUME 2 (-) 0.0oz (+) WA TER DISP VOL 1 (-) 0.0oz (+) WA TER DISP VOL 2 (-) 0.0oz (+) Select (YES) or (EXIT) NO ...

  • Bunn LCA-2 - page 14

    14 T ANK TEMP 180 (-) EXIT (+) READY TEMP 175 (-) EXIT (+) CABINET TEMP 65 (-) EXIT (+) LF PRODUCT DISP .0GAL RESET? LF PRODUCT DISP .0GAL RT PRODUCT DISP .0GAL RESET? RT PRODUCT DISP .0GAL SET P ASSWORD ? (-) 0 (+) SELECT UNITS ENG EXIT METRIC CHILLED UNIT ? NO EXIT YES RINSE ALARM ? NO EXIT YES If NO - go to BIB EMPTY LOCKOUT menu. Use the (+) or ...

  • Bunn LCA-2 - page 15

    15 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 functions are for diagnostic and troubleshooting purposes and typical ...

  • Bunn LCA-2 - page 16

    16 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 (-) T ankT emp (+) Place a 50 mL (#34843.1000) graduated cylinder under the Right dispe ...

  • Bunn LCA-2 - page 17

    17 MENU SCREEN ACTION DESCRIPTION BIB EMPTY -> 500 (-) EXIT (+) XX REFILL -> 155 (-) EXIT (+) WTR ST ART DELA Y (-) .15SEC (+) WTR STOP DELA Y (-) .15SEC (+) TEST LED’S ? NO EXIT YES TEST SWITCHES ? UseSwitchT oT est TEST REFILL ? EXIT YES TEST HEA TER ? EXIT YES ENTER ASSET # (-) 000000 (+) SERIAL # LCA 0000000 F ACTORY DEF AUL TS NO YES U ...

  • Bunn LCA-2 - page 18

    18 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 Ad ...

  • Bunn LCA-2 - page 19

    19 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 will increase the dispenser flow rate to 2.5 Oz ...

  • Bunn LCA-2 - page 20

    20 OPERA TING THE PRESET PORTION CONTROL DISPENSER (Models LCA-2 PC, LCA-2C PC, LCA-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. (V olume 1) Refer to Programming Functions on how to set this amount. a. Place cup on t ...

  • Bunn LCA-2 - page 21

    21 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 ...

  • Bunn LCA-2 - page 22

    22 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 ...

  • Bunn LCA-2 - page 23

    23 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-gal ...

  • Bunn LCA-2 - page 24

    24 Activate the Dispenser within 5 sec. to dispense the pre-selected volume. 34766 042304 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 “FLASHING” Rinse Lockout Enable ...

  • Bunn LCA-2 - page 25

    25 T roubleshooting (Continued) Replace BIB, see Loading the Concentrate Check BIB Connector Fittings Check T ubing Installation Check Threshold, see Field Calibrating the Empty BIB Warning Concentrate BIB is Empty . BIB Not properly connected T ubing kinked or blocked Empty BIB Warning set too high Right Refill LED “ON” Right BIB Empty Replac ...

  • Bunn LCA-2 - page 26

    26 Screen Displayed Possible Cause T roubleshooting Procedures Dispenser Diagnostics-LCD Display T roubleshooting (Continued) 34766 011604 LF T ARGET RPM TOO HIGH !! TUBE TOO SMALL CHECK DISP RA TIO RT T ARGET RPM TOO HIGH !! TUBE TOO SMALL CHECK DISP RA TIO LF T ARGET RPM TOO LOW !! TUBE TOO LARGE CHECK DISP RA TIO RT T ARGET RPM TOO LOW !! TUBE T ...

  • Bunn LCA-2 - page 27

    27 Screen Displayed Possible Cause T roubleshooting Procedures T roubleshooting (Continued) 34766 011604 Service Required Service Required Service Required Service Required Service Required 1. Corresponding T emperature Sensor Probe wire(s) broken or disconnected. 2. Evaporator temperature too low . 1. Corresponding T emperature Sensor Probe wire(s ...

  • Bunn LCA-2 - page 28

    28 Screen Displayed Possible Cause T roubleshooting Procedures T roubleshooting (Continued) 34766 010407 EV AP TEMP SENSOR OUT OF RANGE CHECK WIRE FOR SHORTS LEFT PUMP F AUL T! CHK PUMP WIRING CHK RPM SENSOR CHK TUBING AREA RT PUMP F AUL T! CHK PUMP WIRING CHK RPM SENSOR CHK TUBING AREA COOLER F AUL T! EV AP TEMP TOO HI CHECK EV AP FAN CHK EV AP SE ...

  • Bunn LCA-2 - page 29

    29 Field Calibration of the Concentrate Pumps / Dispenser Flow Rates The factor y 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 Require ...

  • Bunn LCA-2 - page 30

    30 34766 120105 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 T ip and Pull the Left Dispense Handle momentarily . The dispenser will dispense water for 20 seconds and then shut OFF automatically . 15. Keep the graduated contain ...

  • Bunn LCA-2 - page 31

    31 Field Calibrating the Empty BIB W arning The dispenser will automatically turn on the Left or Right “REFILL LED”, see Operating Controls and Inter face , when the corresponding BIB is Empty . The Refill message is triggered when the FlavorGard TM sensor reading drops below the minimum setting. The factory set minimum is 500 and should be co ...

  • Bunn LCA-2 - page 32

    32 34766 010407 34641.0000J 09/06 © 2002 BUNN-O-MA TIC CORPORA TION 120 VOL TS AC 2 WIRE 120/208-240 VOL TS AC 3 WIRE 208-240 VOL TS AC 2 WIRE SINGLE PHASE 50/60HZ J14-1 J14-7 J18-1 J18-6 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- ...

  • Bunn LCA-2 - page 33

    33 34641.0003A 01/07 © 2007 BUNN-O-MA TIC CORPORA TION 120 VOL TS AC 2 WIRE 120/208-240 VOL TS AC 3 WIRE 208-240 VOL TS AC 2 WIRE SINGLE PHASE 50/60HZ J14-1 J14-7 J18-1 J18-6 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 PORTI ...

  • Bunn LCA-2 - page 34

    34 34766 092706 34641.0001J 09/06 © 2002 BUNN-O-MA TIC CORPORA TION 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 WHI WHI TAN TAN BLK GRY GRN RED SOL RED RED RED RED SOL SOL ...

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