Bunn LCA-2 LP 38791.0000K User Manual

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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.

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

Electrical Hook-up ...................................................................................................................................6

Plumbing Hook-up ..................................................................................................................................6

Operating Controls & Interface ...............................................................................................................7

Installing Pump Tubing ...........................................................................................................................9

Initial Fill & Heat ....................................................................................................................................10

Rinse Alarm Feature ..............................................................................................................................11

Programming the Dispenser .................................................................................................................12

Priming the Concentrate Lines ..............................................................................................................16

Draining the Hot Water..........................................................................................................................16

Operating the Dispenser ........................................................................................................................17

Cleaning & Preventive Maintenance ......................................................................................................18

Replacing the Pump Tubing ..................................................................................................................19

Calibrating the Dispenser ......................................................................................................................20

Troubleshooting Guide ..........................................................................................................................22

Field Calibration of the Concentrate Pumps ..........................................................................................24

Dispenser Flow Rate Calibration ...........................................................................................................24

Field Calibrating the Empty Product Warning ........................................................................................25

Schematic Wiring Diagrams ..................................................................................................................26

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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.

00986.0002

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

37881.0000

11646.0002

00824.0002

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INTRODUCTION

The Liquid Coffee Ambient 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 portioncontrol to ﬁll carafes and decanters for wait staff. Follow the Concentrate Manufacturer’s Storage and Shelf Life recommendations.

This dispenser is designed to operate when ambient temperatures are from 32°F (0°C) minimum to 104°F (40°C) maximum.

ELECTRICAL 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-2 LP 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, 60Hz. The mating connector must be a NEMA 515R.

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. Dispensers set up to deliver to 50.0 ml/sec (1.7 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. It can be purchased direct from Bunn-O-Matic (part number 00326.0000). 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.

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.

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 Kit - Easy Clear EQHP10L Bunn-O-Matic part no. 39000.0001

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INITIAL SET-UP

NOTE: The LCA-2 LP weighs approximately 70 lbs. (32 kg). If necessary, use more than one person when lifting

or moving the dispenser.

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

2. Locate and remove the parts box from top of packaging and set aside.

3. Remove foam packing.

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

5. Open the parts box remove the drip tray, brackets and splash guard.

6. Install the drip tray assembly. a. Loosen the front two legs several turns. b. Slide the drip tray brackets between the large washers and the base plate. c. Retighten the two front legs securing the bracket. d. Install the drip tray.

7. Install the splash guard panel. a. Insert the top tabs into the slots on the door panel. b. Align the key hole slots over the two lower screws, then slide the

splash guard down.

c. Tighten the two lower screws.

8. Level the dispenser using the adjustable feet on the legs.

PLUMBING HOOK-UP (Early Models)

1. Securely attach the short piece of tubing and the water strainer assembly to the inlet ﬁtting on the bottom of the dispenser.

2. Flush the water line to remove any debris or foreign material, and securely attach it to the ﬂare ﬁtting on the water strainer assembly.

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

PLUMBING HOOK-UP (Late Models)

1. Remove the ﬂare elbow ﬁtting from the parts box. Remove the shipping cap from the inlet valve on the bottom of the dispenser and attach the elbow ﬁtting securely to the valve.

2. Flush the water line to remove any debris or foreign material, and securely attach it to the inlet ﬁtting.

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

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ELECTRICAL HOOK-UP

CAUTION: Improper electrical installation will damage electronic components.

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.

OPERATING CONTROLS AND INTERFACE

1. Dispense Switches: Push 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. Carafe Switch: Momentarily pushed to select the Carafe dispense Volume.

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

6. Ready LED: Green - illuminates when the water is at the preset ready temperature.

7. Carafe LED: Yellow - illuminates when the portion dispense option has been selected, (5 second delay).

8. Rinse LED: Yellow - illuminates when the optional preset rinse alarm time has elapsed.

9. Left Reﬁll LED: Yellow - illuminates when the Left Concentrate Can needs replaced.

10. Right Reﬁll LED: Yellow - illuminates when the Right Concentrate Can needs replaced.

11. Function Selector Switch: Allows the user to select different dispensing functions. (Located behind the splash

guard panel)

a. Rinse: Dispenses hot water only- Flushes the mix chamber and dispense tip. b. Prime: Dispenses concentrates only – Primes the concentrate pump. c. Normal: Normal dispense mode - Dispenses mixed product (concentrate and water).

12. Mode Selector Switch: Allows the user to select different operating modes.

a. Run: Normal operating position. b. Night: Anti-pilfering mode that disables dispensing, but keeps heater and chiller operational.

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

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

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

customer speciﬁc requirements. a. MENU: used to scroll to the next menu screen. b. (+): used to increase the displayed value. c. (-): used to decrease the displayed value.

14. LED Display: Displays programming menus and fault messages.

(Continued Next Page)

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Bunn LCA-2 LP 38791.0000K User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual