Bunn LCR-1, LCA-1 User Manual

2.54 Mb

LCR-1

LCA-1

INSTALLATION & OPERATING GUIDE

BUNN-O-MATIC CORPORATION

POST OFFICE BOX 3227 SPRINGFIELD, ILLINOIS 62708-3227

PHONE: (217) 529-6601 FAX: (217) 529-6644

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.

44806.0001A 08/11 ©2011 Bunn-O-Matic Corporation

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 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 appearing 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.

If 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 (during 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, Bunn-O-Matic, 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 Café, PowerLogic, Quality Beverage Equipment Worldwide, Respect Earth, Respect Earth with the stylized leaf and coffee cherry design, Safety-Fresh, savemycoffee.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 Its 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.

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CONTENTS

Warranty..................................................................................................................................................

2

User Notices............................................................................................................................................

4

Introduction.............................................................................................................................................

5

Electrical Requirements...........................................................................................................................

5

Plumbing Requirements..........................................................................................................................

5

Initial Set-up............................................................................................................................................

6

Locating the Dispenser............................................................................................................................

6

Electrical Hook-up...................................................................................................................................

6

Plumbing Hook-up..................................................................................................................................

6

Operating Controls & Interface................................................................................................................

7

Installing Pump Tubing............................................................................................................................

9

Priming the Concentrate Lines................................................................................................................

9

Initial Fill & Heat....................................................................................................................................

10

Rinse Alarm Feature..............................................................................................................................

11

Programming the Dispenser..................................................................................................................

12

Operating the Dispenser........................................................................................................................

14

Cleaning & Preventive Maintenance.......................................................................................................

15

Replacing the Pump Tubing...................................................................................................................

16

Replacing the Air Filter..........................................................................................................................

16

Replacing the Water Filter......................................................................................................................

16

Calibrating the Dispenser.......................................................................................................................

17

Troubleshooting Guide...........................................................................................................................

19

Calibration of the Concentrate Pumps...................................................................................................

21

Dispenser Flow Rate Calibration............................................................................................................

21

Draining the Hot Water..........................................................................................................................

22

Schematic Wiring Diagrams..................................................................................................................

23

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USER NOTICES

Carefully read and follow all notices on the equipment and in this manual. They were written for your protection. All notices are to be kept in good condition. Replace any unreadable or damaged labels.

00986.0002

37881.0000

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 the U.S.A., you must comply with the applicable Plumbing /Sanitation Code for your area.

00656.0001

 

Moving Parts.

 

 

 

 

 

Risk Of Electrical Shock.

 

 

 

 

Do not operate

 

Disconnect power before

 

 

unit with this

 

servicing unit.

 

panel removed.

 

 

 

 

 

 

 

 

27442.0000

CHARGE

Type R134A, Amount 5 oz (141.7 gm)

Design Pressures:

High 269 psi (18.5 bar) (1.8 MPa)

Low 90 psi (6.2 bar) (0.62 MPa)

33461.0005

11646.0002

REMINDER!

CLEAN AIR FILTER

WEEKLY

RECORDATORIO!

LIMPIAR EL FILTRO DE

AIRE SEMANALMENTE

00824.0002

40054.0003

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INTRODUCTION

The BUNN LCA-1 dispenser is design to hold up to 1/2 gal (2 l) of ambient - shelf stable liquid coffee concentrate. The BUNN LCR-1 also holds up to 1/2 gal (2 l) of refrigerated liquid coffee concentrate. Both dispensers are designed to operate when ambient temperatures are from 32°F (0°C) minimum to 95°F (35°C) maximum. Always follow the Concentrate Manufacturer’s Storage and Shelf Life recommendations.

ELECTRICAL REQUIREMENTS

Refer to the Data Plate on the dispenser, and local/national electrical codes to determine circuit requirements. WARNING - If the power cord is ever damaged, it must be replaced by the manufacturer or its service agent with a special cord available from the manufacturer or its service agent in order to avoid a hazard.

The LCA-1 & LCR-1 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 be a NEMA 5-15R.

The LCA-1C & LCR-1C are supplied with a 120-volt / 20 Amp cord set and require a 2-wire, grounded, individual branch circuit rated for 120 volts AC, 20 amp, single phase, 60Hz. The mating connector must be a NEMA 5-20R.

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 3/8” 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) to reduce it to 50 psi (345 kPa). The water inlet fitting is 1/4” flare. The dispensers set up to deliver to 37.0 ml/sec (1.25 Oz./sec.) and require a water supply source that can deliver a minimum of 1.0 gpm (3.8 lpm) at the inlet fitting. NOTE: Bunn-O-Matic recommends 1/4” tubing from the 3/8” water supply line. At least 18 inches of FDA approved flexible 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 install the dispenser. The size and shape of the hole made in the supply line by this type of device may restrict water flow.

This equipment must be installed to comply with the International Plumbing Code of the International Code Council and the Food Code Manual of the Food and Drug Administration (FDA). For models installed outside the U.S.A., you must comply with the applicable Plumbing/Sanitation Code for your area.

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.

BUNN recommends the use of our Easy Clear® Water Quality Systems to assure perfect taste.

Filter Kits - Easy Clear EQHP-10L w/Scale Inhibitor (Bunn-O-Matic part no. 39000.0001) or

Easy Clear EQHP-10 (Bunn-O-Matic part no. 39000.0004)

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INITIAL SET-UP

NOTE: The LCA-1 weighs approximately 40 lbs. (18 kg) and the LCR-1 weighs approximately 55 lbs. (25 kg), when empty.

If necessary, use more than one person when lifting or moving the dispenser.

1.Cut the plastic bands and remove the top box and other packing.

2.Locate and remove the Adapter Tube Kit, Graphic Kit, Drip Tray & Literature Pkg from the packaging and set aside.

3.Set dispenser on the counter where it is to be used. CAUTION: DO NOT LIFT ON THE DOOR.

4.Install the drip tray assembly between the front legs. The magnets will hold the tray in place.

5.Install the Graphic decal in the door.

LOCATING THE DISPENSER

Additional clearance is required on both sides and behind the dispenser to allow for proper air flow and cooling. The LCA-1 requires a minimum space of 16.6” wide x 17.8” tall x 23.0” deep (to allow for the drip tray, water and electrical connections). The LCR-1 requires a minimum space of 17.1” wide x 17.8” tall x 26.0” deep (to allow for the drip tray, water and electrical connections). In addition, allow enough clearance on the left-hand side to allow the door to open freely.

NOTE: In high ambient location where the air temperature around the dispenser could exceed 95°F (35°C), additional clearance is required on both sides and behind the dispenser to allow for proper air flow and cooling. For these higher temperature locations, the total space required for the LCA-1 is 16.6” wide x 17.8” tall x 23.0” deep, and 17.1” wide x 17.8” tall x 26.0” deep for the LCR-1.

PLUMBING HOOK-UP

1.Flush the water line to remove any debris or foreign material.

2.Remove the shipping cap from the inlet fitting on the back of the dispenser and securely attach the water line to the fitting supplied.

3.Turn on the water supply and check for leaks.

ELECTRICAL HOOK-UP

CAUTION: Improper electrical installation will damage electronic components.

Refer to Data Plate on the dispenser, and local/national electrical codes to determine circuit requirements.

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.Connect the dispenser to the power source.

4.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 & Heat.

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OPERATING CONTROLS AND INTERFACE

User Interface:

5 4 6

3

1

2

1.Dispense Switch: Push and Hold to dispense product.

2.Hot Water Switch: Push and Hold to dispense hot water only.

3.Portion Switch: Momentarily pushed to select a Portion dispense.

4.Power LED: Red - illuminates when AC power is applied to dispenser.

5.Ready LED: Green - illuminates when the water is with in 10 F of the desired water temperature.

6.Warning LED: Yellow - illuminates when an error condition is detected.

(Continued Next Page)

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OPERATING CONTROLS AND INTERFACE (Continued)

Selector Switches: (Located behind the splash guard panel)

a

 

a

 

b

 

b

c

 

c

Left Sw:

a.Prime: Dispenses concentrates only – Primes the concentrate pump.

b.Normal: Normal dispense mode - Dispenses mixed product (concentrate and water).

c.Rinse: Dispenses hot water onlyFlushes the dispense tip.

Right Sw:

a.Run: Normal operating position.

b.Night: Anti-pilfering mode that disables dispensing, but keeps heater and chiller operational.

c.Program: Enables programming and set up of the dispenser.

WARNING - The NIGHT Mode does not remove AC power from the dispenser. Disconnect power source before servicing the dispenser.

Programming Switches: Used in conjunction with the LED display to program and calibrate the dispenser to customer specific requirements.

e

d

c

b

a

a.Down Arrow: used to scroll to the next menu screen.

b.(+): used to increase the displayed value.

c.(EXIT): used to exit the programming menu.

d.(-): used to decrease the displayed value.

e.UP Arrow: used to scroll to back to previous menu screen.

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INSTALLING PUMP TUBING

INSTALLING THE PUMP TUBING

1.Remove the BIB and product shelf to access the pump assembly.

2.Loosen thumbscrew (Fig 1) to remove the cover plate and set it aside.

3.Depress tension screw and remove it from notch in the pump body to release the tension on the pump band. (Fig 1)

4.Pull the pump tube from around pump rotor.(Fig 1)

5.Inspect pump bands for signs of wear and replace if necessary.

6.Apply lubricant (BUNN-O-MATIC part no. M2548.1000) to the middle section of the new pump tubing.(Fig 2)

7.Wrap the new pump tubing around the rotor, making sure the elbow is snug against the inlet of the pump.(Fig3)

8.Depress tension screw and insert it in notch in the pump body, reapplying spring tension on the pump band. (Fig 3)

9.Connect the pump tubing the port on the SST dispense tube. (Fig 3).

10.Replace the cover plate and tighten thumbscrew.

11.Route the BIB Adapter tube through the notch in the product shelf and re-install the shelf. (Fig 4) 12.Reconnect the BIB Adapter to the product BIB. (Fig 5)

Note: Replacement Tube Kits can be purchased from BUNN-O-MATIC. Order part no. 44713.1000

FIG 1

FIG 2

FIG 3

 

FIG 4

FIG 5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Remove Cover

Lubricate

Install Tubing

Route Tubing

Completed

Release Tension

New Tube

Reset Tension

Replace Shelf

Installation

Remove Tubing

 

Replace Cover

Connect BIB

 

PRIMING THE CONCENTRATE LINE

1.Open the dispenser door.

2.Select Prime and Run on the Selector switches.

3.Close the dispenser door.

4.Place a container under the dispense tip.

5.Activate the dispenser until concentrate flows from the dispense nozzle, (5 to 10 seconds).

6.Open the dispenser door, select Normal on the Selector switch.

Note: Concentrate may continue to drip out of dispense tip. The user may wish to Rinse the dispenser to clean out the remaining concentrate.

2

6

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INITIAL FILL & HEAT

1.Select Normal and Run on the Selector switches.

2.Confirm the water supply is on.

3.Connect the dispenser to the power source.

4.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 dispenser will not begin heating the water until after the tank is filled. The LCR-1 will begin to cool the cabinet after a 3 min. delay.

5.The Green READY LED will illuminate when the tank temperature reaches the preset Ready temperature.

1

5 4

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Rinse Alarm Feature

Periodic rinsing of the dispense tip is essential for proper maintenance and optimum performance of the dispenser. The automated Rinse Alarm feature has two levels of operation, Disabled and Warning.

Level Selected

Alarm

Disabled

None

Warning

Warning LED will come on 4 hrs prior to the selected time interval and remain on

 

until the Rinse procedure has been performed.

NOTE: Alarm Only - Does not prevent dispensing. To clear the Rinse Alarm, refer to the Rinse Procedure.

The dispenser is shipped with the automated Rinse Alarm disabled. It is up to the user to determine if the Rinse Alarm is needed and the time interval, based on their application and maintenance procedures. The time interval between Rinses is adjustable from 8 to 24 hrs. To enable the automated Rinse Alarm feature, refer to RINSE ALARM in Programming the Dispenser.

Rinse Procedure:

1.Open the cabinet door and select Rinse on the Selector switch – close the door.

2.Place a 2 Liter (1/2 Gal) container under the dispense tip.

3.Press and hold the Dispenser switch until water flow stops automatically, approximately 20 sec. NOTE: The Warning LED will turn OFF, when the Rinse procedure has been satisfied.

4.Open the cabinet door and select Normal on the Selector switch – close the door.

4

1

Cabinet Target Temperature (LCR-1 Only)

The LCR-1 is designed to “HOLD” Non-shelf stable concentrate at the desired Target Temperature. It is not designed to chill concentrate that has not been stored at or below the desired Target Temperature. NOTE: Always follow the concentrate Manufacturer’s recommendations for proper Storage and Shelf Life.

The LCR-1 Target Temperature is pre-set to 40° F (4° C) at the factory and can be adjusted from 35° to 75° F (2 - 24° C), see Calibrating the Dispenser to adjust the Target Temperature. NOTE: When operating temperatures are above 85° F (30° C), it may be necessary to lower the Target Temperature 5° to maintain the concentrate at the desired temperature. If ice starts to build up on the evaporator inside the cabinet, raise the Target Temperature a few degrees.

The Maximum Recommended Operating Temperature for the LCR-1 is 95° F (35° C).

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PROGRAMMING THE DISPENSER

Two basic modes are available to the operator: Display Mode and Program Mode. Open the dispenser door to access the digital Programming Switches with LED display. To enter the Display Mode, Set the RUN/NIGHT/ PROGRAM Switch to the RUN position.

Display Mode: Used to view the current set-up values. Use the MENU switch to scroll to the next display. NOTE: The display blanks out after two minutes of inactivity. Press any button to activate the display.

LED DISPLAY

180

0

1 8 0

1

3 0

2

0.0

3

0.0

4OFF

XX.X

DISPLAY MODE

DESCRIPTION

Home View

LCR-1 Alternates between the Tank and

 

Cabinet Temp.

 

LCA-1 Displays Tank Temp only.

Tank Temperature

Displays Target Tank Temperature (F°)

Dispense Ratio

Displays Dispense Ratio (XXX:1)

Portion Volume

Displays Portion Dispense Volume

 

(XX.X Oz.).

 

Set to 0.0 to Disable.

Dispense Total

Displays Total Coffee Concentrate

 

Dispensed (XX.X Gal)

Rinse Alarm (Hrs)

Displays The Number Of Hours

 

Between Required Rinses.

 

(Default = OFF, Alarm Disabled)

Software Version

Displays Software Version # -

 

Exits To Home View After 3 Seconds.

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PROGRAMMING THE DISPENSER (Cont.)

Program Mode: Used to change or enter new set-up values.

To enter the Program Mode, Set the RUN/NIGHT/PROGRAM Switch to the PROGRAM position, the unit will display “__PPP” to indicate it is in the Program Mode. Use the MENU switch to scroll to the next display. Use the Increase (+) and Decrease (-) switch to adjust the values.

LED DISPLAY

PROGRAM MODE

DESCRIPTION

 

 

 

 

 

 

Tank Temperature

Default = 180°F (82°C)

 

0

 

1

8

0

 

 

 

Range = 120° - 200°F (49 - 93°C)

 

 

 

Ready Temp = Tank Temp minus 10°F

 

 

 

 

 

 

 

(~5.5°C)

 

 

 

 

 

 

Dispense Ratio

Set Coffee Mix Ratio

 

1

 

 

3

0

 

 

 

 

Default = 30:1

 

 

 

 

Range = 20 Max / 100 Min

 

 

 

 

 

 

Portion Volume

Set Portion Dispense Volume

 

2

 

 

0.

0

 

 

 

 

Default = 0.0, Disabled

 

 

 

 

Range = 16.0 / 40.0 Oz.

 

 

 

 

 

 

 

(0.5 / 1.2 L)

 

 

 

 

 

 

Dispense Total

Hold Decrease Switch to Reset Total

 

3

 

 

0.

0

 

 

 

 

to Zero. 0.0 Gal (0.0 L)

 

 

 

 

 

 

 

 

 

 

 

 

 

Rinse Alarm Timer

Default = OFF (Rinse Alarm Disabled)

 

 

 

 

 

 

 

4

 

 

0.

0

 

 

 

 

Range = 8 - 24 hrs

 

 

 

 

 

 

 

 

 

 

 

Software Version

Displays Software Version # -

 

 

 

XX.X

 

 

 

 

Exits To Home View After 3 Seconds.

 

 

 

 

 

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OPERATING THE DISPENSER

Set the Function Selector Switch to “Normal” and the Mode Selector Switch to “Run.”

1A. Push and Hold Dispense Mode (Cup at a time).

a.Place cup on the tray beneath the dispensing tip.

b.Push and hold the Dispense Switch until the cup is nearly full.

c.Remove the cup.

1B. Portion Dispense Mode. Refer to Programming Functions to set the desired volume.

a.Place the appropriate size container beneath the dispensing tip.

b.Momentarily press the Portion Switch then momentarily press the Dispense Switch.

c.Remove the cup or container.

NOTE: If the user waits longer than 5 seconds to push the Dispense switch, the unit will default back to the Push and Hold mode. A Portion dispense can be aborted at any time by momentarily pushing the Dispense switch again.

d.Wait for the container to fill and the dispenser to quit dispensing.

3.Hot Water Dispense

a.Place a container under the dispense tip.

b.Push and hold the Hot Water switch until water reaches the desired level, then release.

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GENERAL CLEANING AND SANITIZING PROCEDURES

Note: The BUNN® LCA-1 & LCR-1 dispensers incorporates a “user selectable” rinse reminder feature, which displays warning LED on the front panel when it is time to rinse. See Programming Functions to activate this feature.

DAILY RINSING

1.Open dispenser door and select Rinse and Run on the Function switches.

2.Close dispenser door and place a container under dispense nozzle area.

3.Press the dispense switch until the water runs clear or has no concentrate coloring in it, (10 to 20 sec.).

4.Open dispenser door, set the Function switch back to Normal.

Note: To clear the “Rinse” warning, you must hold the dispense switch until flow stops automatically (~20 sec). The “Rinse” LED will turn off when the Rinse time has been satisfied.

DAILY PARTS WASHING

1.Remove and wash drip tray and drip tray cover in a mild detergent solution. Rinse thoroughly.

2.Wipe splash panel, dispense nozzles, door, and cabinet with a clean damp cloth.

WEEKLY SANITIZING

1.Open dispenser door and select Prime and Run on the Function switches.

2.Remove the connector from the product box and disassemble or prop open the internal valve to allow free 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 connector into a 1/2 gallon (2 liter) container of warm soapy tap water 140F (60C).

4.Place a container under the dispense tip and activate the dispense switch until clean soapy water is dispensed from the dispense tip.

5.Repeat steps 3 and 4 with warm tap water 140F (60C) to rinse the soapy water from the pump tubing. Continue activating the dispense switch until water is clear, and no soapy water is being dispensed.

6.Prepare 1 gal. (3.8 L) of sanitizing solution by dissolving 0.4 Oz (11.4 grams) of Kay-5® Sanitizer into 1 gal. (3.8 L) of 120 F (48.9 C) water to ensure 100 ppm of available chlorine.

7.Repeat steps 3 and 4 with the sanitizing solution. Once the sanitizing solution is visible, continue to dispense for 1 minute.

8.Allow the sanitizer solution to sit for 5 minutes in the tubing.

9.After soaking for 5 minutes, activate the Dispense Switch a second time for 2 minutes.

10.Repeat step 3 and 4 with warm tap water to flush the sanitizing solution out of the pump tubing.

11.Reattach bag connector to product box and select Normal and Run on the Function switches

12.Actuate the dispense switch until concentrate/water mixture appears. Continue to dispense at least 12 oz.

(350 ml) of concentrate/water mixture and discard. Wipe internal and external surfaces with a clean, damp cloth.

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PREVENTIVE MAINTENANCE

Bunn-O-Matic® 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.

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 weak mixed beverage. Bunn-O-Matic recommends replacing the Pump Tubing a minimum of once every 6 months or sooner if warranted. Refer to the Tube Replacement Instruction inside the Cabinet door.

REPLACING THE PUMP TUBING

Note: Rinse tubing with warm water (steps 1 - 4 of the Weekly Sanitizing Instructions) prior to removing to avoid spills.

1.Remove the BIB and product shelf to access the pump assembly.

2.Loosen thumbscrew (Fig 1) to remove the cover plate and set it aside.

3.Depress tension screw and remove it from notch in the pump body to release the tension on the pump band. (Fig 1)

4.Pull the pump tube from around pump rotor. (Fig 1)

5.Inspect pump bands for signs of wear and replace if necessary.

6.Apply lubricant (BUNN-O-MATIC part no. M2548.1000) to the middle section of the new pump tubing. (Fig 2)

7.Wrap the new pump tubing around the rotor, making sure the elbow is snug against the inlet of the pump.(Fig3) 8.Depress tension screw and insert it in notch in the pump body, reapplying spring tension on the pump band. (Fig 3)

9.Connect the pump tubing the port on the SST dispense tube. (Fig 3).

10.Replace the cover plate and tighten thumbscrew.

11.Route the BIB Adapter tube through the notch in the product shelf and re-install the shelf. (Fig 4) 12.Reconnect the BIB Adapter to the product BIB. (Fig 5)

Note: Replacement Tube Kits can be purchased from BUNN-O-MATIC. Order part no. 44713.1000

FIG 1

FIG 2

FIG 3

 

FIG 4

FIG 5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Remove Cover

Lubricate

Install Tubing

Route Tubing

Completed

Release Tension

New Tube

Reset Tension

Replace Shelf

Installation

Remove Tubing

 

Replace Cover

Connect BIB

 

CLEANING THE AIR FILTER: LCR-1 Only

A dirty or clogged air filter will reduce the performance of the refrigeration system and could cause the compressor to overheat? Weekly cleaning of the air filter is recommended. Remove the metal Air Filter from the Left side panel and wash in warm soapy water, until all grease and dirt is removed. Rinse in clean water and dry thoroughly before putting back in the LCR-1.

REPLACING THE WATER FILTER:

Refer to the instructions supplied with the water filter kit for the recommended intervals and procedure for replacing the filter cartridge.

16

44806.1 081211

 

CALIBRATING THE DISPENSER

NOTE: The LCA/LCR-1 is calibrated at the factory and does not normally need to be re-calibrated. Open the dispenser door to access the digital Programming Switches with LED display. To enter the Calibration Mode, Set the RUN/NIGHT/PROGRAM Switch to the PROGRAM position and then hold both Up and Down Arrow switches until “1 r u n” appears of the display, (approx 15 sec).

LED DISPLAY

1 r un

122

2 r un

276 0

340

4Eng

5E__

CALIBRATION MODE

 DESCRIPTION

Pump Cal. Procedure

Set PRIME-NORMAL-RINSE switch

 

to PRIME position. Place Graduated

 

Cylinder under dispense tip. Press and

 

hold Dispense Switch until pump stops

 

(20sec)Refer to CalibrationProcedure.

Pump Cal. #

Enter mL collected from the 20 sec.

 

test above.

 

Default = 22

 

Range = 18 - 26mL

Water Flow Rate

Set PRIME-NORMAL-RINSE switch

 

to RINSE position. Place Graduated

 

Cylinder under dispense tip. Press and

 

hold Dispense Switch until pump stops

 

(20sec)Refer to CalibrationProcedure.

Water Flow Rate

Enter mL collected from the 20 sec.

 

test above.

 

Default = 760

 

Range = 780 - 820 mLiters

Cabinet Temperature

LCR-1 Only Used to set the Target

 

Cabinet Temperature

 

Default = 40°F (4°C)

 

Range = 35°F - 75°F (2° - 24°C)

English or Metric Mode

Used to select the desired units.

 

Default = English

 

S.I. for Metric

Error Code Memory

Display cycles through the last (3)

 

Error Codes.

 

Erase by holding the Decrease (-)

 

switches for 10 sec.

 

Currently have to hold (+) & (-)

17

44806.1 081211

 

CALIBRATING THE DISPENSER (Cont.)

LED DISPLAY CALIBRATION MODE  DESCRIPTION

 

 

 

 

 

 

 

 

 

6

-

-

-

Reset Factory Defaults

Resets all set up values to the Factory

 

 

 

 

 

 

 

 

 

 

 

 

 

Default setting.

 

 

 

 

 

 

 

Reset by holding the Decrease (-)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

switches for 10 sec.

 

 

 

 

 

 

 

Currently have to hold (+) & (-)

 

 

 

 

 

 

 

 

 

_

 

2

0

0

Pump “OFF” Delay

Delays the Pump turn off after a

 

 

 

dispense.

 

 

 

 

 

 

 

Default = 200

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Range = 1 - 999 mSec.

 

 

 

 

 

 

 

-

XX.X

Software Version

Displays current Software Version # -

 

 

 

 

 

 

 

 

 

Exits To Home View After 3 Seconds.

 

 

 

 

 

 

18

44806.1 081211

 

TROUBLESHOOTING GUIDE

Error Codes

When an error has occurred, the Warning LED will be flashing. Open the door to view the LED Display and record the Error # shown on the display. Refer to the list of Error Codes below to identify the problem. The troubleshooting guide is provided to suggest probable causes and remedies for most problems. If the problem remains after exhausting the troubleshooting steps, contact the Bunn-O-Matic Technical Service Department.

LED DISPLAY

E_01

E_02

E_03

E_04

E_05

ERROR

DESCRIPTION/TROUBLESHOOTING

Pump Error

Motor or RPM Sensor failure. Check

 

motor and RPM

 

Sensor wires for shorts, loose or open

 

connections.

Heating Time Too Long

Tank Heater ON continuous for more

 

than 1 hour.

 

Check heater wires for loose or open

 

connections.

Fill Time Too Long

Fill Valve ON continuous for more than

 

15 minutes.

 

Water turned OFF. Refill Valve

 

disconnected or faulty.

Tank Temp Sensor Error

Sensor reading Out Of Range (High

 

or Low).

 

Check Sensor wires for shorts, loose

 

or open connections.

Dispense Time Too Long

Dispense or Hot Water switch has been

 

ON for more than 2 Min.

 

Check: Dispense switches for proper

 

operation or damage. Door harness

 

for shorts.

19

44806.1 081211

 

TROUBLESHOOTING GUIDE (Cont.)

Error Codes (Continued)

The Follow errors codes apply to the LCR-1 only.

LED DISPLAY

ERROR

DESCRIPTION/TROUBLESHOOTING

 

 

 

 

 

 

Cool Temp Sensor Failed

Sensor reading Out Of Range (High or

 

E

 

_

0

6

 

 

 

Low).

 

 

 

Check Sensor wires for shorts or open

 

 

 

 

 

 

 

connections.

 

 

 

 

 

 

Cooling Time Too Long

Cabinet Sensor has not reached the

 

E

 

_

0

7

 

 

 

set point in 4 hours.

 

 

 

Check: Air Filter plugged or blocked.

Cabinet door left open or faulty seal. Wiring for shorts or open connections. Evaporator iced up.

Ambient operating temperature is greater than 95°F (35°).

20

44806.1 081211

 

CALIBRATION OF THE CONCENTRATE PUMP & DISPENSER FLOW RATE

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:

50 ml graduated cylinder, with 1 ml graduations.

1000 ml graduated container.

NOTE: You can calibrate either the Concentrate Pump or the Dispenser Flow Rate independently. Simply scroll through the menu screen to the desired section and perform only those steps.

Calibrating the Concentrate Pumps.

1.Open the door of the dispenser and select PROGRAM on the Selector Switch. The display should show PPP.

2.Depress and Hold both Up & Down arrows switch for approximately 15 sec. The unit will display “1 run” when it has entered the Calibration Mode.

3.Select PRIME on the Selector Switch.

4.Place a container under the dispense tip and depress the dispense switch until a steady stream of concentrate comes out the tip (5 to 10 seconds).

5.Stop priming and allow the tip to stop dripping. Discard the concentrate collected.

6.Place a 50 ml graduated cylinder under the Dispense Tip.

7.Press & Hold the dispense switch. The dispenser will display a 20 second count down timer and then shut the pump OFF automatically. You can abort the calibration and stop the pump by releasing the switch.

8.Keep the graduated cylinder under dispense tip until all the concentrate has dripped out.

9.Measure the volume of concentrate collected in the graduated cylinder.

The acceptable range for the volume of concentrate collected is 16 - 26 ml

10.If the amount collected is not within the acceptable range, repeat STEPS 6 – 9.

11.If the amount collected is still not within range, replace the pump tubing with a new Tube Kit, (refer to the Tube Replacement Instructions) and restart this procedure.

12.When satisfied with the volume of concentrate collected, press the Down Arrow switch. The current Calibration volume “1 XX” will be displayed.

13.Use the (-) or (+) keys to adjust the number displayed to the amount measured in STEP 9.

(Continued Next Page)

21

44806.1 081211

 

CALIBRATION OF THE CONCENTRATE PUMP & DISPENSER FLOW RATE (Continued)

Calibrating the Dispenser Flow Rates.

1.Select RINSE on the Selector Switch.

2.Press the Down Arrow switch to display the Flow Rate calibration menu “2 run”

3.Place a container under dispense tip and depress the dispense switch until a steady stream of water comes out the tip (5 to 10 seconds).

4.Stop dispensing and allow the tip to stop dripping. Discard the water collected

5.Place a 1000 ml graduated container under dispense tip.

6.Press & Hold the dispense switch. The dispenser will display a 20 second count down timer and then stop dispensing automatically. You can abort the calibration and stop the dispense by releasing the switch.

7.Keep the graduated container under dispense tip until all the water stops dripping.

8.Measure the volume of water collected in the graduated container.

The acceptable range for the volume of water collected is 700 to 820 ml

9.If the amount of water collected is not within the acceptable range, empty the graduated container and repeat STEPS 5 – 8.

10.If the amount collected is still not within range, inspect the dispense valves, tubing and mix chamber for lime, kinks or other obstructions.

11.When satisfied with the volume of water collected, press the Down Arrow switch. The current Water Calibration volume “2 .XX0” will be displayed.

12.Use the (-) or (+) keys to adjust number displayed to the amount measured in STEP 8 in Liters, (not ml).

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 rear access panel.

4.Close the tube clamp on the hose from the inlet valve to the tank.

5.Remove the hose from the inlet fitting and direct it into a 150 Oz (4.5L) or larger container.

6.Open the tube clamp. Continue draining tank until ALL of the water is out. Be careful when draining the water as it may be very hot.

7.Reconnect the tube to the inlet valve.

8.Leave the tube clamp open and replace the rear access panel.

Note: The dispenser must be refilled using the Initial Fill & Heat steps before reconnecting the power source.

22

44806.1 081211

 

L1

SCHEMATIC WIRING DIAGRAM LCR-1 / LCA-1

 

N

GRN

LIMIT THERM.

BLK-16 BLK-16

ORG

 

HOT WATER

WHT

SOL

WHT/RED

 

 

 

PRODUCT VALVE

WHT

SOL

WHT/VIO

 

 

INLET VALVE

WHT

SOL

BRN/WHT

 

 

 

 

WHT

 

 

 

 

 

 

RED

1

PNK

PUMP

 

 

 

BLK

 

RED/BLK

RPM SENSOR

GRN

 

ORG

 

M

RED

 

 

PUMP

BLK

 

 

TANK HEATER

120 V 1425 W WHT-16

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

COM N.O.

 

 

 

 

 

 

 

BLK

BLK

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

WHT

 

 

WHT

 

 

 

 

WHT/VIO

 

 

J4-1

 

 

 

 

 

 

J10-1

 

 

 

WHT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PNK

 

 

 

 

 

 

 

 

 

 

 

ORG

 

 

 

 

 

 

 

 

 

 

 

 

 

PNK

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BLK

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

WHT/RED

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

GRN

 

 

 

 

 

 

 

 

TANK

 

 

 

 

 

 

 

 

 

 

 

J10-4

 

 

 

GRN

 

 

 

 

 

 

 

 

 

 

 

 

 

BRN/WHT

 

 

J4-5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

WHT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

WHT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

WHT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BLK

 

 

J4-10

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

J8-1

 

 

 

WHI/YEL

 

 

PRIME

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

WHI/BLK

 

 

NORMAL

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

J8-5

 

 

 

YEL

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

GRY

 

 

RINSE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RED

 

 

J7-1

MAIN

J8-10

 

 

 

 

 

PROGRAM

 

 

 

 

 

 

 

 

 

 

 

 

BLK

 

 

CONTROL

 

 

 

 

BLU

 

 

NIGHT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

WHT/GRY

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PNK

 

 

 

BOARD

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RUN

 

 

 

 

 

 

 

 

 

 

 

ORG

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

J8-14

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RED/BLK

 

 

J7-5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LCR-1 ONLY

 

 

 

 

 

J9-1

VIO

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EVAPORATORFAN

 

MEMBRANE SWITCH

BLK

J1-1

 

WHT/VIO

1

BLK

EVAPORATOR

 

 

J9-4

 

BLK

 

 

DOOR

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

J9-6

 

 

 

 

 

 

 

 

WHI

 

 

 

 

 

 

 

 

 

DOOR

YEL

 

 

WHT/GRN

+

RED

 

 

 

CONTROL BOARD

BLU

 

 

BRN

 

BLK

 

 

 

GRN

J1-5

 

-

 

 

 

 

ORG

J1-6

 

BLU/BLK

 

 

 

 

 

 

 

 

 

 

 

COMPRESSOR

 

 

 

 

 

 

 

 

WHI

 

 

 

 

 

 

 

 

 

 

 

MEMBRANE SWITCH

 

 

J11-1

GRN

YEL

 

 

 

CONDENSER FAN

PROGRAM

 

 

 

 

 

WHI

 

 

 

 

 

 

 

 

 

 

CONDENSER

 

TAN

 

 

 

 

 

 

 

 

J2-1

J11-5

BRN

 

 

 

 

 

 

 

WHI/ORG

 

 

 

 

 

 

 

J2-4

 

 

WHI

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TRANSFORMER

 

 

 

 

ORG

0

RELAY

 

 

 

 

 

 

 

 

COIL

 

 

 

PRIMARY

WHI

 

 

 

WHI

1

 

 

 

 

BLK

 

WHI

 

WHI

 

 

 

 

 

 

TAN

 

 

GRN

2

CONTACT

 

 

 

SECONDARY

WHI/ORG

BLK

 

WHT/GRN

4

 

 

 

 

 

 

 

BLK

6

 

 

 

 

 

 

 

 

BLU/BLK

8 CONTACT

 

 

 

 

 

 

 

 

YEL

 

 

 

 

 

 

BLK

 

 

 

WHI

 

 

 

 

 

120 VOLTS AC

 

 

 

 

 

 

 

 

 

 

2 WIRE + GRD

 

 

 

 

 

 

 

 

 

 

SINGLE PHASE, 60 HZ

44869.0000B 08/11 © 2011 Bunn-O-Matic Corporation

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

23

 

 

 

 

 

 

44806.1 081211