Bunn LCA-2 User Manual

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LCA-2

LCA-2A

LCA-2 PC

LCC-2

POWER

READY

TION

POR

RINSE

REFILL

STO

WATER

HOT

RTISSEMENT LIQUIDES CHAUDS

! AVE

! WARNING HOT LIQUIDS

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.

34766 050511

CONTENTS

Warranty .......................................................................... 2

Introduction ..................................................................... 3

User Notices .................................................................... 4

Electrical Requirements ................................................... 5

CE Requirements ............................................................. 5

Plumbing Requirements .................................................. 6

Initial Set-up .................................................................... 6

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

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

Setting Dispenser Flow Rate ............................................ 7

Selecting the Correct Pump Tubing .................................. 8

Operating Controls & Interface ........................................ 9

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

FlavorGard™ Feature ...................................................... 11

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

BIB Empty Lockout Feature ............................................ 12

Brew Temperature Lockout Feature ................................ 12

Programming the Dispenser Flow Rate .......................... 13

Loading the Concentrate ................................................ 19

Priming the Concentrate Lines ....................................... 19

Operating the Pull & Hold Dispenser .............................. 20

Operating the Preset Portion Control Dispenser ............ 21

Filling Cambros or other large containers ...................... 21

Cleaning & Preventive Maintenance ............................... 22

Replacing the Pump Tubing ........................................... 23

Draining the Hot Water................................................... 24

Troubleshooting ............................................................. 25

Field Calibration of the Concentrate Pumps ................... 30

Dispenser Flow Rate Calibration .................................... 31

Field Calibrating the Hot Water Flow Rate ...................... 31

Field Calibrating the Empty BIB Warning ........................ 32

Schematic Wiring Diagrams ........................................... 33

INTRODUCTION

The Liquid Coffee Ambient Dispenser (LCA-2) and the Liquid Coffee Chilled Dispenser (LCC-2) 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 Concentrate Manufacturer’s Storage and Shelf Life recommendations. Product Flavor Proﬁle is extended with chilled product storage cabinet featured in the LCC-2.

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

34766 030508

USER NOTICES

Optional Field Wiring

208-240 V, 25.8 A, 6200 W 1PH, 2-Wire + GND, 60HZ

120/208-240 V, 25.8 A, 6200 W

1PH, 3-Wire + GND, 60HZ

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.

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

00986.0002

To reduce the risk of electric shock, do not remove or open cover. No user-serviceable parts inside. Authorized service personnel only. Disconnect power before servicing.

00824.0001

00824.0002

37881.0000

11646.0002

REMINDER!

CLEAN AIR FILTER

WEEKLY

(LOCATED UNDER THE DISPENSER)

RECORDATORIO!

LIMPIAR EL FILTRO DE AIRE SEMANALMENTE

(LOCALIZADO DEBAJO

DEL DISPENSADOR)

40054.0000

28181.0003

AIR FILTER

CLEAN WEEKLY!

(LOCATED UNDER THE DISPENSER)

FILTRO DE AIRE

LIMPIAR

SEMANALMENTE!

(LOCALIZADO DEBAJO

DEL DISPENSADOR)

34766 012711

ELECTRICAL REQUIREMENTS

120V A.C.

208 or

240V A.C.

HEATER RED

208 or

240V A.C.

120V A.C.

10A. FUSE - WHITE

HEATER RED

10A. FUSE - WHITE

10A. FUSE - BLACK

LIMIT SW. - BLACK

HEATER RED

10A. FUSE - WHITE

10A. FUSE - BLACK

LIMIT SW. - BLACK

10A. FUSE - BLACK

LIMIT SW. - BLACK

FIELD WIRING TERMINAL BLOCK DIAGRAM

For all 208 - 240 Volt Connections: Use No. 10 AWG Wires suitable for 90°C (194°F)

1. Unit shipped per Fig. 1, wired for 120V A.C./2-Wire.

2. For 208 - 240V A.C./2-Wire per Fig. 2: Move both the Red-Heater wire and the White-Fuse wire to the Top Red Te rminal as shown.

3. For 120/208 - 240V A.C./3-Wire per Fig. 3: Move the Red Heater wire to the To p Red Terminal as shown.

Fig. 1 Fig. 2 Fig. 3

FIELD WIRING TERMINAL BLOCK DIAGRAM

3. For 120/208 - 240V A.C./3-Wire per Fig. 3.

CAUTION: The dispenser must be 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 be

a NEMA 5-15R. The LCA-2C and LCC-2C dispensers 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. These dispensers can be Field Wired for 208 or 240 volt applications. This requires a 2 or 3-wire, grounded,

individual branch circuit rated for 208/240 volts AC, 30 amp, single phase, 60 Hz. NOTE: The internal terminal block must be rewired for 208/240 applications, (see Optional Field Wiring Diagram).

FIELD WIRING TERMINAL BLOCK DIAGRAM

Models without Master ON/OFF Switch

FIELD WIRING TERMINAL BLOCK DIAGRAM

Models with Master ON/OFF Switch

RED

TO MASTER

ON/OFF SWITCH

BLACK

1. Unit shipped per Fig. 1, wired for 120V A.C./2-Wire.

2. For 208 - 240V A.C./2-Wire per Fig. 2.

120V A.C.

Fig. 1 Fig. 2

For all 208 - 240 Volt Connections: Use No. 10 AWG Wires suitable for 90°C (194°F)

The LCR-2A dispenser is internally wired from the factory for 230 Volts AC Single Phase 50/60 Hz. It requires a 2-wire, grounded, individual branch circuit rated for 230 Volts AC.

TO MASTER

ON/OFF SWITCH

RED

BLACK

208 or

240V A.C.

CE REQUIREMENTS

• This appliance must be installed in locations where it can be overseen by trained personnel.

• For proper operation, this appliance must be installed where the temperature is between 5°C to 35°C.

• Appliance shall not be tilted more than 10° for safe operation.

• An electrician must provide electrical service as specied in conformance with all local and national codes.

• This appliance must not be cleaned by water jet.

• This appliance is not intended for use by persons (including children) with reduced physical, sensory or mental capabili-

ties, or lack of experience and knowledge, unless they have been given instructions concerning use of this appliance by a person responsible for its safety.

• Children should be supervised to ensure they do not play with the appliance.

• If the power cord is ever damaged, it must be replaced by the manufacturer or authorized service personnel with a special

cord available from the manufacturer or its authorized service personnel in order to avoid a hazard.

• Machine must not be immersed for cleaning.

TO MASTER

L2 RED

L1 BLACK

ON/OFF SWITCH

RED

BLACK

120V A.C.

Fig. 3

200, 230 or

230V A.C.

240V A.C.

208 or

240V A.C.

34766 062210

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) to reduce it to 50 psi (345 kPa). The water inlet ﬁtting is 3/8” ﬂare. Dispensers set up to deliver to 1.8 Oz./sec. (53.2 ml/sec) per dispense tip, require a water supply source that can deliver a minimum of 1.7 gpm (6.4 lpm) at the inlet ﬁtting. Dispensers set up to deliver 2.6 Oz./sec. (76.9 lpm) per dispense tip, require a water supply source that can deliver a minimum of 2.4 gpm (9.2 lpm) at the inlet ﬁtting. NOTE: Bunn-O-Matic recommends 3/8” tubing from the 1/2” 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.

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.

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 packing and cut around the bottom of box.

3. Remove the box and the rest of the foam packing.

4. Open the dispenser door and remove the drip tray and the lower splash guard panel.

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

6. Conﬁrm the dispenser is level on the counter.

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.

PLUMBING HOOK-UP

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

2. Securely attach the water line to the 3/8” ﬂare ﬁtting, on bottom right side of the dispenser.

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

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.

34766 062210

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 dispense rate to about 2.5 oz./sec (74 ml/sec) for larger volume dispensing (airpots, carafes, etc.).

NOTE: The hot water FlowRate is ﬁxed at approximately 1.7 oz/sec. and can not be adjusted.

Removing the restrictors:

1. Disconnect the dispenser from the AC power source.

2. Open the Product Cabinet door.

3. Remove the concentrate tube, vent line and grommet from mix chamber ports in side the product cabinet.

4. Remove the two screws that fasten mix chamber to the control panel.

5. Gently pull mix chamber away from dispenser to expose water line connection, (you may have to rotate it

slightly).

6. Disconnect FlavorGard™ sensor wire and hot water tubing from the mix chamber.

7. Remove the ﬂow restrictor from the inlet to the mix chamber.

8. Reconnect FlavorGard™ sensor wire and hot water tubing to the mix chamber.

9. Place mix chamber back into position in the dispenser, (you may have to rotate it slightly) and secure it with

the two screws

10. Reposition the grommet, vent line and pump tubing onto the mix chamber ports. Caution: Failure to properly replace and secure any of the above components may result leaks and/or cause damage to the dispenser.

If you changed the Dispenser Flow Rate, you will need to reprogram the dispenser to the new rate, see Programming

the Dispenser.

CAUTION: Failure to reprogram the Dispenser Flow Rates will result in inaccurate Mix Ratios.

Reprogramming the Dispenser Flow Rate:

1. Remove the lower splash guard panel and locate the Programming module.

2. Use the Down Arrow key to enter into the programming function and scroll through the menu’s to the “CAL

LEFT SIDE?” menu and select “YES”.

3. Scroll down to the “CAL LF WTR VOL” menu

4. Use the (+) & (-) keys to enter a volume of 50 Oz. (1478 mL). This will recalibrate the Left dispenser to the

new rate.

5. Scroll down to the “CAL RT WTR VOL” menu

6. Use the (+) & (-) keys to enter a volume of 50 Oz. (1478 mL). This will recalibrate the Right dispenser to the

new rate.

7. Select “Exit” to leave the programming menu.

Note: The default volume of 50 Oz (1478 mL), is the typical Cal Volume for a 2.5 Oz/sec Flow Rate Test, see Field Calibration of the Concentrate Pumps / Dispenser Flow Rates.

34766 073007

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 Tube Selection Chart.

TUBE SELECTION CHART Dispense Concentrate Ratios Rate 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100

1.8 Oz/sec. 3/16” I.D. TUBING 1/8” I.D. TUBING (53 ml/sec.)

2.5 Oz/sec. 3/16” I.D. TUBING 1/8” I.D. TUBING (74 ml/sec.)

Examples:

1. For a Dispenser Flow Rate of 2.5 Oz./sec (74 mL/sec) and a Mix Ratio of 35:1 – use 3/16” I.D. Tubing.

2. For a Dispenser Flow Rate of 1.8 Oz./sec (53 mL/sec) and a Mix Ratio of 60:1 – use 1/8” I.D. Tubing.

Tube kits can be purchased from BUNN-O-MATIC. Part # 34727.1000 for 3/16” I.D. Tubing or #34728.1000 for 1/8” I.D. Tubing.

INSTALLING THE PUMP TUBING (Refer to the Tubing Installation Instructions in side the cabinet door for details.)

1. Loosen the thumbscrew securing the tubing retainer plate to the pump housing. Set it and the retainer plate aside.

2. Depress the tension screw and remove it from the notch in the pump body, releasing the spring tension on the pump band.

3. Apply lubricant (BUNN-O-MATIC part number M2531.0001) to the new pump tubing.

4. Insert the tubing onto the mix chamber port and wrap the tubing around the pump rotor, making sure that the elbow and clamps end up on the bottom side of the pump body.

5. Close the compression band reinsert the tension screw into the notch in the pump housing.

6. Replace the tubing retainer plate and tighten the thumbscrew.

7. Reconnect bag connector to the product box.

8. Repeat steps 1 through 7 for the other pump.

9. Prime the pumps. Refer to Priming the Concentrate Lines section.

Thumbscrew

Tension Screw

Remove Retaining Plate Release Spring Tension Remove Tubing

Tension Screw

Tube Clamp

Install New Tubing Completed Installation

2.0”

Lubricate between arrows

Lubricate New Tube

2.0”

34766 112502

OPERATING CONTROLS AND INTERFACE

BUNN ICED COFFEE

AMBIENT UNIT

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 and Release switch for Portion Control Models.

4. Alternate Portion Control Switch: Momentarily pushed to select the Alternate Portion Control Volume #2.

5. Function Selector Switch: Allows the user to set the dispenser into different dispensing modes.

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).

6. Mode Selector Switch: Allows the user to set the dispenser into different operating modes.

a. Run: Normal operating position. b. Off: Turns off all functions including tank heater and chiller.

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

c. Night: Anti-pilfering mode that disables dispensing, but keeps the tank heater and chiller (if applicable)

operational.

7. Door Interlock Switch: Unit will not dispense product if the door is open.

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

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

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

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

12. Left Reﬁll LED: Yellow - illuminates when the Left Concentrate BIB needs replaced.

13. Right Reﬁll LED: Yellow - illuminates when the Right Concentrate BIB needs replaced.

14. Programming Keypad: Used in conjunction with the LCD display to program and calibrate the dispenser to

customer speciﬁc requirements. (Located behind the splash guard panel)

15. LCD Display: Displays programming menus and fault messages. (Located behind the splash guard panel)

5 6

34766 120105

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 stop ﬁlling when the tank is full. The dispenser will not begin heating the water until after the tank is ﬁlled. Dispenser models with product chillers will begin to cool the cabinet at this time.

4. The Green READY LED will illuminate when the tank temperature reaches the preset ready temperature.

Note: The time required to heat the water initially will vary depending on the AC Power supplied to the dispenser.

While the tank is heating, the dispenser may be readied for use as described in Programming Functions & Basic

Operations.

1 1

34766 112502

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 digital controller. Once you have completed the installation of the dispenser, entered the desired mix ratio for your concentrate, dispensed several cups of the mixed product, and are satisﬁed with the Flavor and Strength being delivered, simply enable FlavorGard™, (refer to FlavorGard™ in Programming the Dispenser).

The dispenser will automatically calibrate the system to all the factors that make up your particular mix proﬁle, (e.g. water source, ﬁltration system, Brand of concentrate and mix ratio selected, etc.). NOTE: It is very important that you have dispensed enough product to insure that the dispenser is fully functional and you are satisﬁed with the Flavor Proﬁle of the mix product before enabling FlavorGard™.

Once FlavorGard™ is enabled, the dispenser will continuously monitor the mix product as it is being dispensed and adjust the metering pump speed to maintain a consistent mixed product, thus eliminating factors such as (settling of the concentrate, tube wear, viscosity changes, liming, etc.).

The system is designed to work with in the range of variations that can be caused by these factors. The factory preset range is (+/- 10 %) and is adjustable to a Max of (+/- 15%). This insures that the FlavorGard™ system is not responding to factors that cannot be corrected by minor adjustments to the speed of the metering pump, (e.g. kinked hoses, low water pressure, severely worn tubes, empty BIB’s, etc). NOTE: Changes to Concentrate Ratios or Dispenser Flow Rates will automatically disable FlavorGard™. You will need to re-enable FlavorGard™, once you are satisﬁed with the new Flavor Proﬁle.

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, Warning Only and Warning with Brew Lockout, see chart for details.

Alarm Level Selected Alarm Mode

Disabled None Warning Only Rinse LED will come on 4 hrs prior to the selected time interval

and remain on until the Rinse procedure has been performed. The dispenser will continue to serve product.

Warning w/ Brew Lockout Rinse LED will come on 4 hrs prior to the selected time interval and remain on

until the Rinse procedure has been performed. The dispenser will Lockout and not continue to serve product once the selected time interval has elapsed.

NOTE: The time interval between Rinses is adjustable from 8 to 24 hrs.

The dispenser is shipped with the automated Rinse Alarm disabled, (No Alarm). It is up to the user to determine the Rinse time interval and the level of warning required, based on their application and maintenance procedures. To enable the automated Rinse Alarm feature, refer to RINSE ALARM ? in Programming the Dispenser.

34766 050103

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 turn OFF, when the Rinse procedure has been satisﬁed for both sides.

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

1 5

BIB Empty Lockout Feature

The dispenser can be set to not dispense product when the concentrate BIB is empty. To enable this feature, ﬁrst calibrate the Empty BIB Threshold (refer to Field Calibrating the Empty BIB Warning). Then enable the BIB Empty Lockout feature (refer to the BIB Empty Lockout menu in Programming the Dispenser). The dispenser will now Lockout dispensing and ﬂash the Right or Left “REFILL LED” corresponding to the empty BIB. Once the BIB has been replaced, PRIME the concentrate line (refer to Priming the Concentrate Lines) and then dispense mixed product until the “REFILL LED” goes out. NOTE: If the dispenser fails to clear the BIB Empty Lockout, repeat the Priming operation a second time to insure the concentrate is ﬂowing properly.

Brew Temperature Lockout Feature

The dispenser can be set to not dispense product if the hot water is not up to the preset READY temperature. To enable this feature set the READY temperature to the minimum allowable dispense temperature. Then enable the Brew Lockout feature, refer to READY TEMP and BREW LOCKOUT, in Programming the Dispenser.

34766 042304

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 items indicate which selection is active. NOTE 2: Values shown below are the factory default values for English units. NOTE 3: Values in [X - X] are the Min. and Max. for that function.

MENU SCREEN ACTION DESCRIPTION

TANK TEMP XXX

AMBIENT UNIT

TANK TEMP XXX

CABINET TEMP XX

Use the Down Arrow Key to enter Programming Functions

L DISPENSE RATIO

(-) 35:1 (+)

SET LF TUBE SIZE

Use the (+) or (-) buttons to adjust the Mix Ratio

Select tube size.

1/8 EXIT 3/16

R DISPENSE RATIO

(-) 35:1 (+)

SET RT TUBE SIZE

Use the (+) or (-) buttons to adjust the Mix Ratio

Select tube size.

1/8 EXIT 3/16

FLAVOR GUARD ?

NO EXIT YES

Select (YES) to activate. Select (NO) to deactivate.

If NO - go to LF DISP VOLUME menu.

Normal Display for LCA models, (No Chiller)

Normal Display for LCC models, (with Chiller)

Enter the desired Mix Ratio for the concentrate used in the Left dispenser. [20:1 - 100:1]

Enter Pump Tube Size to be used in the Left metering pump, (see Tube Selection Chart)

Enter the desired Mix Ratio for the concentrate used in the Right dispenser. [20:1 - 100:1]

Enter Pump Tube Size to be used in the Right metering pump, (see Tube Selection Chart)

Select Yes, if you are ready to calibrate the Flavor Guard sensor. Select NO, if you do not wish to use this feature, (see Flavor Guard)

LF TASTE OK ?

NO EXIT YES

FIND LF TARGET

PULL DISPENSE

RT TASTE OK ?

NO EXIT YES

FIND RT TARGET PULL DISPENSE

Select (YES) or (NO)

Place a 16 Oz. (500 mL) cup under the Left dispense tip, then activate the Left dispenser

Select (YES) or (NO)

Place a 16 Oz. (500 mL) cup under the Right dispense tip, then activate the Right dispenser

Select YES, if you have dispensed several cups and are satisﬁed with the Left dispenser ﬂavor. Select NO, if you have not run taste test.

Calibrates the Left FlavorGard™ sensor to the current MixProﬁle. The dispenser will shut OFF automatically when ﬁnished.

Select YES, if you have dispensed several cups and are satisﬁed with the Right dispenser ﬂavor. Select NO, if you have not run taste test.

Calibrates the Right FlavorGard™ sensor to the current MixProﬁle. The dispenser will shut OFF automatically when ﬁnished.

34766 042304

MENU SCREEN ACTION DESCRIPTION

LOCK FLAVOR ?

EXIT YES

Select (YES) or (EXIT)

Select YES, to Lock In sensor calibration. NOTE: Display will return to “Find LF Target” if sensor calibration is out of range.

FLAVORS LOCKED

EXIT

Portion Control Settings for Pull and Hold Dispensers For Portion Control Dispensers (LCA-2 PC, LCA-2C PC, LCA-2A PC) go to Full Time Portion Control Settings

LF DISP VOLUME

(-) 4.0oz (+)

Use the (+) or (-) buttons to adjust the Left portion volume

RT DISP VOLUME

(-) 4.0oz (+)

Use the (+) or (-) buttons to adjust the Right portion volume

Full Time Portion Control Settings

LF DISP VOLUME 1

(-) 4.0oz (+)

Use the (+) or (-) buttons to adjust the Normal Left volume

NONE

Conﬁrms that sensor calibration was in range and accepted. Scroll down to continue.

Set the volume to be dispensed during a Left Portion controlled dispense to: [0 - 640 Oz.] or [0 - 18.93L]

Set the volume to be dispensed during a Right Portion controlled dispense to: [0 - 640 Oz.] or [0 - 18.93L]

Set the desired portion control volume to be dispensed during a Normal Left dispense to: [0

- 640 Oz.] or [0 - 18.93L]

LF DISP VOLUME 2

(-) 0.0oz (+)

RT DISP VOLUME 1

(-) 4.0oz (+)

RT DISP VOLUME 2

(-) 0.0oz (+)

WATER DISP VOL 1

(-) 0.0oz (+)

WATER DISP VOL 2

(-) 0.0oz (+)

Use the (+) or (-) buttons to adjust the Alternate Left volume

Use the (+) or (-) buttons to adjust the Normal Right volume

Use the (+) or (-) buttons to adjust the Alternate Right volume

Use the (+) or (-) buttons to adjust the Normal Hot Water volume

Use the (+) or (-) buttons to adjust the Alternate Hot Water volume

Set the desired portion control volume to be dispensed during a Alternate Left dispense to: [0 - 640 Oz.] or [0 - 18.93L]

Set the desired portion control volume to be dispensed during a Normal Right dispense to: [0 - 640 Oz.] or [0 - 18.93L]

Set the desired portion control volume to be dispensed during a Alternate Right dispense to: [0 - 640 Oz.] or [0 - 18.93L]

Set the desired portion control volume to be dispensed during a Normal Hot Water dispense: [0 - 640 Oz.] or [0 - 18.93L]

Set the desired portion control volume to be dispensed during a Alternate Hot Water dispense: [0 - 640 Oz.] or [0 - 18.93L]

34766 120105

MENU SCREEN ACTION DESCRIPTION

TANK 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?

Use the (+) or (-) buttons to adjust the target Temp.

Select (RESET) to clear total

NONE

Select (RESET) to clear total

Sets the water Tank temperature [120 - 200°F] or [49 - 93°C]

Sets the hot water Ready temperature. Typically set to the minimum desired dispense temp.

LCC Models Only: Sets the Chilled Cabinet target temperature [50 - 75°F] or [4 - 24°C]

Selecting Reset will clear the Current accumulated volume of concentrate dispensed through the Left dispenser. Gal (Liters)

Displays the Total accumulated volume of concentrate dispensed through the Left dispenser. Not Re-settable. Gal (Liters)

Selecting Reset will clear the Current accumulated volume of concentrate dispensed through the Right dispenser. Gal (Liters)

RT PRODUCT DISP

.0GAL

NONE

Displays the Total accumulated volume of concentrate dispensed through the Right dispenser. Not Re-Settable. Gal (Liters)

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.

ENTER PASSWORD

(-) 0 (+)

SET PASSWORD ?

(-) 0 (+)

SELECT UNITS

ENG EXIT METRIC

CHILLED UNIT ?

NO EXIT YES

Use the (+) or (-) buttons to enter password.

Use the (+) or (-) buttons to change the password.

Select the preferred units

Select (YES) or (NO)

Enter the access Code to view the remaining functions. Factory Default = 0.

Enter your own Code to prevent access to the remaining functions. [0 to 9999]

Used to select the preferred units of measurement. (Oz., Gal, deg F) or (mL, L, deg C)

LCA Models without Chiller select (NO) LCC Models with Chiller select (YES)

RINSE ALARM ?

Select (YES) or (NO)

NO EXIT YES

If NO - go to BIB EMPTY LOCKOUT menu.

Selecting Yes will enable the Rinse Alarm function, (see Rinse Alarm)

34766 120105

MENU SCREEN ACTION DESCRIPTION

RINSE TIME ?

(-) 12 Hrs (+)

RINSE LOCKOUT ?

NO EXIT YES

BIB EMPTY LOCKOUT

NO EXIT YES

Use the (+) or (-) buttons to adjust Rinse Alarm delay

Select (YES) to enable

Enter the desired time between required Rinse Cycles in hours, [8 - 24 hrs.]

Select YES to Lockout dispensing until the Rinse Alarm has been cleared. Default is NO

Select YES to Lockout dispensing until the Concentrate BIB has been replaced. Default is NO

BREW LOCKOUT ?

NO EXIT YES

Select (YES) to enable

Select YES to Lockout dispensing until the hot water tank is at READY Temp. Default is NO

DLY REPEAT DISP

(-) 0 SEC (+)

Use the (+) or (-) buttons to adjust the Delay Time

Enter the desired time delay before allowing the next dispense to take place, [0 - 10 sec.]

The following functions are for diagnostic and troubleshooting purposes and typically do not have to be adjusted. Contact your local service agent for assistance before making changes to these functions.

CAL LEFT SIDE ?

EXIT YES

Select (YES) to enable

Selecting Yes will enable the Left Dispenser Calibration routine, (see Field Calibration before attempting to calibrate the dispenser).

If NO - go to CAL RIGHT SIDE menu.

CAL LEFT PUMP ?

PULL DISPENSE

Place a 50 mL (#34843.1000) graduated cylinder under the Left dispense tip, then activate the Left Dispenser

CAL LF PUMP VOL

(-) 43mL (+)

CAL LF WTR FLOW ?

PULL DISPENSER

Use the (+) or (-) buttons to enter volume collected

Place a 64 Oz. (2000 mL) container under the Left dispense tip, then activate the Left Dispenser

CAL LF WTR VOL

(-) 36.0OZ (+)

Use the (+) or (-) buttons to enter volume collected

CAL LEFT SIDE ?

EXIT YES

NONE

The Left Pump will dispense concentrate for 20 seconds, then shut off automatically. Collect and measure the concentrate dispensed.

Enter the volume of concentrate measured from the Left Pump in mL, (not Oz.) regardless of Preferred Units selected.

The Left Dispenser will dispense hot water for 20 seconds, then shut off automatically. Collect and measure the water dispensed.

Enter the volume of the water measured from the Left dispenser in Oz. (mL).

Scroll down to bypass this screen.

CAL RIGHT SIDE ?

EXIT YES

Select (YES) to enable Calibration routine.

Selecting Yes will enable the Right Dispenser Calibration routine, (see Pump Calibration) prior to calibrating the dispenser.

34766 120105

MENU SCREEN ACTION DESCRIPTION

If NO - skip to next menu.

CAL RIGHT PUMP ?

PULL DISPENSER

Place a 50 mL (#34843.1000) graduated cylinder under the Right dispense tip, then

The Right Pump will dispense concentrate for 20 seconds, then shut off automatically. Collect and measure the concentrate dispensed.

activate the Right Dispenser

CAL RT PUMP VOL

(-) 43mL (+)

Use the (+) or (-) buttons to enter volume collected

Enter the volume of concentrate measured from the Right Pump in mL(not Oz.) regardless of Preferred Units selected.

CAL RT WTR FLOW

PULL DISPENSER

Place a 64 Oz. (2000 mL) container under the Right dispense tip, then activate the

The Right Dispenser will dispense hot water for 20 seconds, then shut off automatically. Collect and measure the water dispensed.

Right Dispenser

CAL RT WTR VOL

(-) 36.0OZ (+)

CAL RIGHT SIDE ?

Use the (+) or (-) buttons to enter volume collected

NONE

Enter the volume of the water measured from the Right dispenser in Oz. (mL)

Scroll down to bypass this screen.

EXIT YES

For Portion Control Dispensers (LCA-2 PC, LCA-2C PC, LCA-2A PC) only

CAL HOT WTR FLO ?

PULL DISPENSE

CAL HOT WTR VOL (-) 34.0OZ (+)

XXX CAL -> XXX

(-) TankTemp (+)

FlvrGrdRange 10%

(-) EXIT (+)

LfFlvrGrdTargets

RPM XXX-CON XXX

RtFlvrGrdTargets

RPM XXX-CON XXX

Place a 64 Oz. (2000 mL) container under the Hot Water dispense tip, then activate the Hot Water Dispenser

Use the (+) or (-) buttons to enter volume collected

Use the (+) or (-) buttons to adjust temperature reading

Use the (+) or (-) buttons to adjust % value

NONE

The Hot Water Dispenser will dispense for 20 seconds, then shut off automatically. Collect and measure the water dispensed.

Enter the volume of the water measured from the Hot Water Dispenser in Oz. (mL)

Adjust the display reading to match a calibrated probe inserted next to the Tank Sensor, °F (°C).

Used to set the maximum adjustment the Flavor Guard feature is allowed to make, [3 - 15%].

Displays the Left Dispenser target RPM and Conductance Reading, (Diagnostics Only)

Displays the Right Dispenser target RPM and Conductance Reading, (Diagnostics Only)

34766 120105

MENU SCREEN ACTION DESCRIPTION

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

Use the (+) or (-) buttons to adjust empty BIB threshold

Use the (+) or (-) buttons to adjust Reﬁll threshold

Use the (+) or (-) buttons to adjust delay time

Select (YES) or (NO)

NONE

Momentarily depress (YES)

Used to set the Conductance Threshold for the Empty BIB warning. Default is 500

Used to set the Conductance Threshold for the Tank Reﬁll Probe.

Dispense Valve ON Delay. Eliminates weak mix at the beginning of a dispense.

Dispense Valve OFF Delay. Flushes the mix chamber at the end of a dispense.

LED diagnostics. Selecting YES will light all Front Door LED’s.

Switch Diagnostic: Activate switches separately to test. Display will indicate which Switch has been activated. NOTE: Door Interlock switch must be held closed.

Reﬁll Valve Diagnostic: Press YES to momentarily energize the Solenoid. CAUTION: Inlet Valve will open and water will ﬂow, if connected and turned ON.

TEST HEATER ?

EXIT YES

ENTER ASSET #

(-) 000000 (+)

SERIAL #

LCA 0000000

VIEW FAULTS?

(-) EXIT (+)

LATEST FAULT

NO FAULTS

FACTORY DEFAULTS

NO YES

Momentarily depress (YES)

Use the (+) or (-) buttons to adjust the ASSET NUMBER

NONE

Select (+) to view Fault Conditions

Use (+) or (-) to scroll through the Faults

Select (YES) or (NO)

Tank Heater Diagnostic: Press YES to momentarily energize the Tank Heater Circuit. CAUTION: AC power will be applied to the Tank Heater Circuit.

Allows the user the option of entering an Asset Number. Default is 000000

Displays the manufacture’s Serial Number (should be identical to the Serial Number on the machine Data Plate)

This unit stores the last 3 Fault Conditions in memory for diagnostic purposes.

Displays up to 3 FAULT Conditions or NO FAULTS, if nothing has failed since the last “Reset Factory Defaults”.

CAUTION: Selecting YES will RESET all Programming Functions to the Factory Default settings. NOTE: On LCC Models the Chiller will have to be reset to the ON condition, (see Chilled Unit programming function).

34766 073007

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 left or right BIB Adapter ﬁtting.

4. Pull the Adapter ﬁtting down and connect it to the BIB. (See Fig. 2)

5. Place the BIB upright in the machine, rotating it into position with the connector facing forward.

6. Rotate the BIB Adapter to avoid sharp bends in the tubing and allow it to be routed between the two

pumps. Refer to the Tube Installation Decal on the door for proper routing. (See Fig. 3)

7. Close the cabinet door.

Fig. 1

Fig. 2 Fig. 3

PRIMING THE CONCENTRATE LINES

1. Open the dispenser door.

2. Load concentrate per instructions in the section titled Loading the Concentrate.

3. Select Prime on the Function Selector Switch and Run on the Mode Selector Switch.

4. Close the dispenser door.

5. Place a container under the appropriate dispense tip.

6. Activate the appropriate dispenser until concentrate ﬂows from the dispense nozzle. Priming may take 5 to

10 seconds.

7. Open the dispenser door, select Normal on the Function Selector Switch, and then close door.

Note: Concentrate may continue to drip out of dispense tip. The user may wish to run a Rinse Cycle (refer to Rinsing) after Priming the dispenser to clean out the remaining concentrate.

7 3 3

34766 042304

OPERATING THE PULL & HOLD DISPENSER

(Models LCA-2, LCA-2C, LCA-2A, LCC-2, LCC-2C, LCC-2A)

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 dispense handle until the cup or other container is full. c. Remove cup or container.

2. Portion Dispense Mode (Preset volume dispensing) Refer to Programming Functions on how to set this volume. a. Place the appropriate size container beneath the desired dispensing tip. For large containers, ﬂip the cup

tray up and place the container on top of the drip tray.

b. Momentarily press the Portion Switch. The Portion LED will illuminate for 5 seconds after the Portion

Switch is pressed.

c. Momentarily pull the corresponding dispense handle, then release. If the user waits longer than 5 seconds

to pull the handle, the dispenser will default back to the Pull & Hold Mode. Portion Dispense Mode can be disabled at any time during the portion dispense by either momentarily pulling the Dispense Handle again or pressing the Stop button.

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

3. Hot Water Dispense a. Place container under the hot water dispenser (center of machine). For large containers, ﬂip the cup tray

up and place the container on top of the drip tray. b. Push and hold the Hot Water Switch until the water reaches the desired level, then release. c. Remove container.

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/sec. (74 mL/sec.) and reduce the time to ﬁll larger containers, (see Setting Dispenser Flow Rate.) Care must be taken to insure that the mixed product ﬂows freely from the dispense tip into the container.

1. Use a 5/8” I.D. or larger, NSF (National Sanitation Foundation) approved hose.

2. Use as short a hose as possible with no loops, bends or kinks in it.

3. Insure that the outlet of the hose is below the dispense tip and that the mixed product ﬂows freely into the container

A properly sized and positioned hose will not run full or back up into the dispense tip. Failure to follow these directions can alter the mix ratio and/or cause ﬂooding of the vent tube.

NOTE: The temperature of the product being dispensed will start to drop after ~2 gal. continuous draw. Recovery time will be dependent on the temperature of the supply water and the voltage at which the heater coil is being operated.

34766 042304

OPERATING 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. (Volume 1) Refer to Programming Functions on how to set this

amount. 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. Momentarily press the appropriate dispense switch. The dispenser will automatically dispense the beverage

at the preset amount. Allow the mix chamber to drain at the end of the cycle.

c. Remove cup or container.

2. Alternate Volume Portion Dispense Mode. (Volume 2) Refer to Programming Functions on how to set this

volume. a. Place the appropriate size container beneath the desired dispensing tip. For large containers, ﬂip the cup

tray up and place the container on top of the drip tray.

b. Momentarily press the Portion Switch. The Portion LED will illuminate for 5 seconds after the Portion

Switch is pressed.

c. Momentarily press the corresponding Dispense Switch. If the user waits longer than 5 seconds to push

the switch, the dispenser will default back to the Primary Volume preset amount. Alternate Portion Dispense Mode can be disabled at any time during the portion dispense by either momentarily pushing the Dispense Switch again or pressing the Stop button.

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

Push and Hold Dispensing of Coffee or Hot Water

Push and Hold Dispense Mode. See Programming Functions on how to set the Preset Volume to Zero.

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. Push and hold the corresponding dispense switch until the container is full. c. Remove cup or container.

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 5 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/sec. (74 mL/sec.) and reduce the time to ﬁll larger containers, (see Setting Dispenser Flow Rate.) Care must be taken to insure that the mixed product ﬂows freely from the dispense tip into the container.

1. Use a 5/8” I.D. or larger, NSF (National Sanitation Foundation) approved hose.

2. Use as short a hose as possible with no loops, bends or kinks in it.

3. Insure that the outlet of the hose is below the dispense tip and that the mixed product ﬂows freely into the container

A properly sized and positioned hose will not run full or back up into the dispense tip. Failure to follow these directions can alter the mix ratio and/or cause ﬂooding of the vent tube.

34766 120105

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 Functions to activate this feature.

Daily: RINSING

1. Open the dispenser door.

2. Select Rinse on the Function Selector Switch and Run on the Mode Selector Switch.

3. Close the dispenser door.

4. Place a 1/2 gal (2 liter) container under the appropriate dispense nozzle or nozzles.

5. Activate the Dispenser of the appropriate side or sides for approximately twenty seconds or until the hot water is clear or has no concentrate coloring in it.

6. Open the dispenser door, select Normal on the Function Selector Switch, and then close door.

Note: To clear the “Rinse” alarm, activate each dispenser until the ﬂow stops automatically (approx. 20 seconds for each tip). The “Rinse” alarm LED will turn off when the Rinse Procedure has been satisﬁed for both sides.

Daily: PARTS WASHING

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

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

Weekly: SANITIZING

1. Open the dispenser door.

2. Select Prime on the Function Selector Switch and Run on the Mode Selector Switch.

3. Remove the bag 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.

4. Place the bag connector into a one-gallon (3.8 liter) container of warm soapy tap water 140°F (60°C).

5. Place an empty container under dispense tip and activate the corresponding Dispenser until the clean soapy water is dispensed from the dispense tip.

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

7. Prepare 2.5 gallons (9.46L) of sanitizing solution by dissolving 1 packet of Kay 5 sanitizer into 2.5 gallons (9.46L) of 120°F (48.9°C) water to ensure 100 ppm of available chlorine.

8. Again, repeat steps 4 and 5 with the sanitizing solution. Once sanitizing solution is visible, continue to dispense for 1 minute. Release handle and allow solution to sit for 5 minutes.

9. After soaking for 5 minutes, activate the dispense switch a second time, this time for 2 minutes. After 2 minutes, release the dispense switch.

10. Repeat step 6 to ﬂush out the sanitizing solution from the pump tubing.

11. Remove the mating connector from the bag connector.

12. Reattach the bag connector to product box.

13. Select Normal on the Function Selector Switch and Run on the Mode Selector Switch.

14. Activate the Dispenser until concentrate/water mixture appears. Then dispense one 12 ounce (354.9 ml) glass of concentrate/water mixture and discard.

15. Repeat steps 1 through 14 for other dispense head.

16. Wipe internal and external surfaces with a clean, damp cloth.

34766 070709

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 on the Cabinet door for details.

1. Rinse the pump tubing with warm tap water (Refer to steps 1 - 5 of the Weekly Sanitizing instructions) prior

to removing the tubes to avoid concentrate spills.

2. Loosen the thumbscrew securing the tubing retainer plate to the pump housing. Set it and the retainer plate

aside.

3. Depress the tension screw and remove it from the notch in the pump housing, releasing the spring tension

on the pump band.

4. Open the compression band and gently pull the pump tube from around the pump’s rotor.

5. Inspect the pump bands for signs of wear. Replace if necessary.

6. Apply lubricant (BUNN-O-MATIC part number M2531.0001) to the new pump tubing’s rotor side.

7. Insert the tube onto the mix chamber port, then wrap the new tubing around the pump rotor, making sure

that the elbow and clamps end up on the bottom side of the pump housing.

8. Depress the tension screw and insert it in the notch in the pump body, reapplying spring tension on the pump

band.

9. Replace the tubing retainer plate and tighten the thumbscrew.

10. Repeat steps 1 through 9 for the other pump.

Note: Replacement Tube/Adapter Kits can be purchased from BUNN-O-MATIC.

Thumbscrew

Tension Screw

Remove Retaining Plate Release Spring Tension Remove Tubing

Tension Screw

Tube Clamp

Install New Tubing Completed Installation

2.0”

Lubricate between arrows

Lubricate New Tube

2.0”

34766 031010

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 sink or a container with a minimum of ﬁve-gallon capacity.

5. Make sure drain clamp is closed. Then, remove drain plug.

6. Direct tube into sink or container and open drain clamp. Continue draining tank until ALL of the water is out. Be very careful with the draining water because it can be very hot.

7. Close drain clamp, insert drain plug, place drain tube back into machine, and replace splash panel.

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

34766 112502

Troubleshooting

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 qualied service personnel should perform inspection, testing, and repair of electrical equipment.

• Shorting the terminals or the application of external voltages to electronic components may result in component

or circuit board failure.

• Intermittent operation of electronic circuit boards is unlikely. board failure will normally be permanent. If an

intermittent condition is encountered, the cause will likely be a switch contact or a loose wire connection at a terminal or crimp.

• Solenoid removal requires interrupting the water supply to the valve. Damage may result if solenoids are

energized for more than ten minutes without a supply of water.

• The use of two wrenches is recommended whenever plumbing ttings are tightened or loosened. This will

help avoid twists and kinks in the tubing.

• Make certain that all plumbing connections are sealed and all electrical connections are tight and isolated.

• This dispenser is heated at all times. Keep away from combustibles.

WARNING:

• Exercise extreme caution when servicing electrical equipment.

• Disconnect the brewer from the power source when servicing, except when electrical tests are specied. The

red “Power LED” on the door indicates that the unit is connected to AC Power.

• Follow recommended service procedures.

• Replace all protective shields or safety notices.

Front Panel LED Display Messages

Power LED “OFF”

No AC Power

Ready LED “OFF”

Water Temp. Too Low

Rinse LED “ON”

Rinse Timer

Rinse LED “FLASHING”

Rinse Lockout Enabled

Portion LED “ON”

Portion Dispense

Enabled

Dispenser Not plugged in. AC Circuit Breaker OFF

Usage has exceeded the capacity of the Tank Heater

Rinse Cycle Required

Alternate Portion Dispenser Volume #2 has been selected

Check Power Cord Check the AC Power Circuit Breaker Service Required

Check Tank Temp Setting Check Ready Temp. Setting Service Required: Change the Supply Voltage, see Optional Field Wiring

Rinse Dispenser, see Rinse ProcedureRinse Cycle Required

Rinse Dispenser, see Rinse ProcedureDispenser Locked Out

Activate the Dispenser within 5 sec. to dispense the pre-selected volume.

34766 042304

Troubleshooting (Continued)

Left Reﬁll LED “ON”

Left BIB Empty

Right Reﬁll LED “ON”

Right BIB Empty

Left Reﬁll LED

“FLASHING”

Empty BIB Lockout

Enabled

Left Reﬁll LED

“FLASHING”

Empty BIB Lockout

Enabled

Concentrate BIB is Empty. BIB Not properly connected Tubing kinked or blocked Empty BIB warning set too high

Concentrate BIB is Empty. BIB Not properly connected Tubing kinked or blocked Empty BIB Warning set too high

Left Dispenser will not operate

Replace BIB, see Loading the Concentrate Check BIB Connector Fittings Check Tubing Installation Check Threshold, see Field Calibrating the

Emoty BIB Warning

Replace BIB, see Loading the Concentrate Check BIB Connector Fittings Check Tubing Installation Check Threshold, see Field Calibrating the Empty BIB Warning

Replace BIB, see loading the ConcentrateLeft Dispenser will not operate

Replace BIB, see loading the Concentrate

All LED’s “FLASHING”

Fault Detected

The Dispenser has detected an Internal Fault

Remove the lower splash guard to view the Fault message, See Diagnostics. After the fault has been repaired or corrected - Hold the “Stop” button for 10 seconds to clear the message.

34766 102103

Troubleshooting (Continued)

Dispenser Diagnostics-LCD Display

Screen Displayed Possible Cause Troubleshooting Procedures

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

1. The Tube Size selected for the Left Hand Dispenser is too small for the application.

2. The Ratio selected for the Left Hand Dispenser is not correct for the application.

1. The Tube Size selected for the Right Hand Dispenser is too small for the application.

2. The Ratio selected for the Right Hand Dispenser is not correct for the application.

1. The Tube Size selected for the Left Hand Dispenser is too large for the application.

2. The Ratio selected for the Left Hand Dispenser is not correct for the application.

Refer to “Selecting the Correct Pump Tubing” section of the manual.

Refer to recommended Dispense Ratio on the product label.

Refer to “Selecting the Correct Pump Tubing” section of the manual.

Refer to recommended Dispense Ratio on the product label.

Refer to “Selecting the Correct Pump Tubing” section of the manual.

Refer to recommended Dispense Ratio on the product label.

RT TARGET RPM TOO LOW !!

TUBE TOO LARGE CHECK DISP RATIO

LEFT BIB EMPTY!

REPLACE PRODUCT

CHECK THRESHOLD

RIGHT BIB EMPTY!

REPLACE PRODUCT

1. The Tube Size selected for the Right Hand Dispenser is too large for the application.

2. The Ratio selected for the Right Hand Dispenser is not correct for the application.

1. Concentrate BIB is Empty.

2. BIB Not properly connected.

3. Tubing kinked or blocked.

4. Empty BIB Warning set too high.

1. Concentrate BIB is Empty.

2. BIB Not properly connected.

3. Tubing kinked or blocked.

Refer to “Selecting the Correct Pump Tubing” section of the manual.

Refer to recommended Dispense Ratio on the product label.

Replace BIB, see loading the Concentrate

Check BIB Connector Fittings

Check Tubing installation

Check Threshold, see Field Calibrating

the Empty BIB Warning

Replace BIB, see loading the Concentrate

Check BIB Connector Fittings

Check Tubing installation

CHECK THRESHOLD

4. Empty BIB Warning set too high.

Check Threshold, see Field Calibrating

the Empty BIB Warning

34766 011604

Troubleshooting (Continued)

Screen Displayed Possible Cause Troubleshooting Procedures

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

1. Reﬁll valve stuck open

2. Faulty reﬁll probe

3. Faulty overﬂow switch

1. Tank Heater failure

2. Triac failure

3. Tank Temp. sensor failure

1. Water shut off to dispenser

2. Inlet Solenoid Valve failure

1. Corresponding Temperature Sensor Probe wire(s) broken or disconnected

Service Required

Check water supply shut-off

Service Required

COOL TEMP SENSOR OUT OF RANGE

CHECK FOR BAD CONNECTIONS

EVAP TEMP SENSOR OUT OF RANGE

CHECK FOR BAD CONNECTIONS

TANK TEMP SENSOR OUT OF RANGE

CHECK WIRE FOR SHORTS

COOL TEMP SENSOR OUT OF RANGE

CHECK WIRE FOR SHORTS

1. Corresponding Temperature Sensor Probe wire(s) broken or disconnected.

2. Product cabinet temperature too low.

1. Corresponding Temperature Sensor Probe wire(s) broken or disconnected.

2. Evaporator temperature too low.

1. Corresponding Temperature Sensor Probe wire(s) shorted to housing, or to each other.

2. Product cabinet temperature too high.

Service Required

34766 011604

Troubleshooting (Continued)

Screen Displayed Possible Cause Troubleshooting Procedures

EVAP TEMP SENSOR OUT OF RANGE

CHECK WIRE FOR SHORTS

LEFT PUMP FAULT! CHK PUMP WIRING

CHK RPM SENSOR CHK TUBING AREA

RT PUMP FAULT! CHK PUMP WIRING

CHK RPM SENSOR CHK TUBING AREA

COOLER FAULT! EVAP TEMP TOO HI

CHECK EVAP FAN CHK EVAP SENSOR

1. Corresponding Temperature Sensor

Probe wire(s) shorted to housing, or to each other.

2. Evaporator temperature too high.

1. Motor failure

2. RPM Sensor failure

1. Motor failure

2. RPM Sensor failure

1. Cabinet circulating fan failure

2. Ice build up on evaporator coils

3. Evaporator sensor failure

Service Required

COOLING TIME TOO LONG

CHECK AIR FILTER CHECK COOLING UNIT

COND PROBE FAULT CHECK COND PROBES

CHK DISP SWITCHES CHK CONNECTIONS

JUMPER FAULT! CONFIG NOT VALID

CHECK J-18 ON CONTROL BOARD

1. Air intake ﬁlter clogged

2. Wiring failure

3. Compressor failure

1. Concentrate buildup on probes

2. Machine dispensing continously

3. Water ﬂowing continously

1. Invalid wire harness conﬁguation

Clean Air Filter

Check wiring harness for breaks, shorts, open connectors

Service Required

Check pump & tubing for proper installation. Clean probes Dispense switch failure, Service Required Dispense valve leaking, Service Required

Service Required

34766 010407

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: 50 to 100 ml graduated cylinder, with 1 ml graduations. 64 Oz (2000 ml) graduated container. Remove the lower splash guard assembly to access prior to starting this procedure 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 Left Side Dispenser

Concentrate Pump Calibration

1. Select PRIME on the Function Selector Switch. (refer to Priming the Concentrate Lines).

2. Place a container under the Left Dispense Tip and prime the concentrate lines until a steady stream of concentrate comes out the tip (approximately 10 seconds).

3. Stop the Priming and allow the tip to stop dripping. Discard the concentrate collected.

4. Select NORMAL on the Function Selector Switch.

5. Locate the programming module and use the Arrow Down key to scroll through LCD screens until CAL LEFT SIDE appears and press the YES button.

6. The CAL LEFT PUMP menu screen will be displayed. Place a 50 ml graduated cylinder under Left Dispense Tip and activate the Left Dispenser momentarily. The dispenser will run the Left Concentrate Pump for 20 seconds and then shut OFF automatically.

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

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

Acceptable ranges for the volume collected Tubing Size Volume Collected 3/16” tubing 40 - 47 ml. 1/8” tubing 16 - 22 ml

9. If the amount collected is not within the acceptable range, empty the graduated cylinder and repeat STEPS 6 – 8.

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

11. When satisﬁed with the volume of concentrate collected, press the Down Arrow Key

12. The CAL LF PUMP VOL menu screen will be displayed. Use the (-) / (+) keys to adjust number displayed to the amount measured in STEP 8.

(Continued Next Page)

34766 073007

Field Calibration of the Concentrate Pumps / Dispenser Flow Rates

(Continued)

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 under dispense tip until all the water stops dripping.

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

Acceptable ranges for the volume collected

_____Dispenser Flow Rate___________ ____Volume Collected____

1.8 Oz/sec (53 ml/sec) w/ ﬂow restrictor 32 - 38 Oz, (946 - 1124 ml)

2.5 Oz/sec (74 ml/sec) w/o ﬂow restrictor 46 - 52 Oz ,(1360 - 1538 ml)

17. If the amount collected is not within the acceptable range, empty the graduated container and repeat

STEPS 14 – 16

18. If the amount collected is still not within range, inspect the dispense valves, tubing and mix chamber for

lime, kinks or other obstructions.

19. When satisﬁed with the volume of concentrate collected, press the Down Arrow Key.

20. The CAL LF WTR VOL screen will be displayed. Use the (-) / (+) keys to adjust number displayed to the

amount measured in STEP 16.

21. Press Down Arrow Key again to exit the CAL LEFT SIDE functions.

Calibrating the Right Side Dispenser

Repeat STEPS 1-21 above for the “CAL RIGHT SIDE” menus.

Field Calibrating the Hot Water Flow Rate

1. Locate the programming module and use the Arrow Down key to scroll through the LCD screen until “CAL HOT WTR FLO?” appears.

2. Place a 64 Oz (2000 ml) graduated container under Hot Water Tip and press the hot water switch. The unit will dispense Hot Water for 20 seconds and then shut OFF automatically. Keep the graduated container under the dispense tip until all the water stops dripping.

3. Measure the volume of water collected in the graduated container. The acceptable range for the volume collected is 32 - 38 Oz. (946 - 1124 ml).

4. If the amount collected is not within the acceptable range, empty the container and repeat steps 2 & 3.

5. If the amount collected is still not within range, inspect the hot water valve, tubing and ﬁttings for lime, kinks, or other obstructions.

6. When satisﬁed with the volume of concentrate collected, press the Down Arrow Key.

7. The “CAL HOT WTR VOL” screen will be displayed. Use the (-) / (+) keys to adjust number displayed to the ammount measured in step 3.

8. Press Down Arrow Key again to exit this function.

34766 120105

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 FlavorGardTM sensor reading drops below the minimum setting. The factory set minimum is 500 and should be correct for most locations. However, in some areas the hardness of the local water supply may effect this reading. If the Reﬁll message doesn’t come on when the BIB is empty or the message comes on too early and there is still concentrate left in the BIB, use the following procedure to ﬁnd the correct Empty BIB threshold.

Calibrating The Empty BIB Threshold

1. Remove the lower splash guard assembly to access the digital programming module with LCD display.

2. Open the cabinet door and set the Function Switch to the “Rinse” position. Close the door.

3. Place a large container under the Left dispenser tip, then activate and hold the left dispenser.

4. Dispense long enough to rinse all the concentrate out of the mix chamber and for the Conductance reading to stabilize and stop dropping.

5. Record the nominal Conductance value displayed. (NOTE: It is typical for this value ﬂuctuate (+/- 25) points about the nominal value}. This is the conductance reading of the water in your area.

6. Repeat steps 3, 4 & 5 for the Right dispenser.

7. Add 100 points to the larger of the Left or Right side Conductance value. This is the new Empty BIB threshold value for your dispenser.

8. Enter this new value into the Empty BIB Alarm threshold, see Programming the Dispenser.

34766 120105

SCHEMATIC WIRING DIAGRAM

LCA-2/LCA-2, PC/LCA-2C/LCA-2C, PC/LCC-2/LCC-2C

(Older models may not have the Master Sw. and/or 10 Amp Fuses)

MASTER ON/OFF

SWITCH

BLK-14

RED-14

N (120V 2-Wire) L2 (208-240V 2-Wire)

GRN

WARMER

YES (+)

NO (-)

RIGHT RPM

BLK

TUBE

TOUCHPAD

EXIT

LEFT RPM

SENSOR

LEFT

PUMP

RIGHT PUMP

BLK-14

TRIAC

BLK-14 BLU-14 BLU-14

Fuse 1

BLK

RED BLK

1 2 3 4 5 6 7

RED BLK GRN

RED

10 AMP

BLK RED

RED BLK BLU

RED BLK

VIO

WHI/YEL

ORN

BLK

UNIVERSAL

POWER SUPPLY

-V

DISPENSERS WITH PORTION CONTROL

N(L2) L(L1)

GRN

WHI BLK

GRN GRN

-V

RED

VIO BLU RED YELYEL ORN BLK BLK

RED WHI/ORNWHI/ORN WHI/YEL

BLK

TANTAN

J1-1

J14-1

J14-7

J7-1

J7-5

J7-10

J8-1

J8-3

J18-1

J18-6

J6-20

Early Models

SW. & THERMOSTAT

WHI

GRN

RED

J2-1

J1-4

J6-15

TANK HEATER

PORTION CONTROL

DOOR

BLK

C O N

T R O

B O

R D

J6-10

BLK

WHI

BLK

GRY

ORN

J3-1

J2 -8

J15-1

J15-4

J3-6

J4-1

J4-5

J5-1

J5-3

J16-1

J16-5

J16-12

J6-1

J6-5

BLK-14

RED-14

WHI/BLU RED WHI/RED

BLK

RED RED/BLK BRN/WHI BRN/BLK WHI/GRY

BLU/BLK

BLU ORN WHI/ORN WHI/YEL PNK VIO BLK BLK BLK BLK GRN BLK

LIMIT

THERMOSTAT

132

RED-14

Fuse 1

WHIWHI

10 AMP

WHI/GRY

RED

WHI/YELBLK

LEFT

CONDUCTANCE

SENSOR

OVERFLOW

PROTECTION SW

REDRED

SOL

HOT WATER

SOL

RIGHT DISP

SOL

LEFT DISP

BLU/BLK

SOL

REFILL

RED/BLK

BRN/BLK

BRN/WHI

WHI/ORN

RIGHT

CONDUCTANCE

SENSOR

WHI/GRY

BLK

ORN

P R O

WHI

BLK B E

GRN

LF DISP. SW.

RT DISP. SW.

120 VOLTS AC 2 WIRE

120/208-240 VOLTS AC 3 WIRE

208-240 VOLTS AC 2 WIRE

SINGLE PHASE 50/60HZ

J1-1

I T C

J1-5

H A

N D

L E

J1-10

D B

O A R D

J1-16

GRN

ORN

GRN/WHI

GRN/BLK

WHI/BLK

BLU/WHI

BLU/WHI RED/BLK GRN ORN/BLK GRN/WHI

BLK RED/WHI BLU/BLK RED GRN/BLK WHI/BLK ORN

WHI

SELECTOR

SWITCH

BLU/BLK

WHI/GRY

NITE

RUN

WHI/VIO

BLKBLK

BLK

WHI

RED/BLK

SELECTOR

SWITCH

RINSE

PRIME

RED/WHI

WHI/GRY

ORN/BLK

WHI/YEL

TAN

RED

BLK

TAN

WHI/VIO

WHI/YEL

BLK

VIO

WHI

HEAT SINK

THERMISTOR

REDRED

WHI/BLU

BLK

PELTIER

COOLING CABINET

BLU

BLK

WHI/RED

BLK

RED

WHI

RED

BLK

RED

BLK

CABINET

THERMISTOR

LLC Models only

34766 062210

TUBE

WARMER

TUBE

WARMER

TOUCHPAD

YES (+)

EXIT

NO (-)

LEFT RPM

SENSOR

RIGHT RPM

SENSOR

LEFT

RED

BLK

PUMP

BLK

RED

RIGHT PUMP

LF DISP. SW.

RT DISP. SW.

230 VOLTS AC

2 WIRE

SINGLE PHASE

50 HZ

CAPACITOR .01uF

BLK BLK

BLK-14

BLK

RED BLK

1 2 3 4 5 6 7

RED BLK GRN

WHI/YEL

ORN

SCHEMATIC WIRING DIAGRAM LCC-2A/LCA-2A/LCA-2A, PC

J6-1

DOOR

WHI/BLU RED WHI/RED

BLK

RED RED/BLK BRN/WHI BRN/BLK WHI/GRY

BLU/BLK

BLU ORN WHI/ORN WHI/YEL PNK VIO BLK BLK BLK BLK GRN BLK

GRN

DOUBLE POLE

LIMIT THERMOSTAT

VIO

BLK

WHI

LCC Models only

THERMISTOR

RFI SUPPRESION

CAPACITOR 2.2uF

Early Models

TRIAC

BLK-14

Fuse 1

BLK

10 AMP 10 AMP

UNIVERSAL

POWER SUPPLY

WHI

N(L2)

BLK

-V

J1-1

J1-5

L(L1)

-V +V

GRN

DISPENSERS WITH PORTION CONTROL

BLU/WHI RED/BLK GRN ORN/BLK GRN/WHI

BLK RED/WHI BLU/BLK RED GRN/BLK WHI/BLK ORN

WHI

GRN GRN

RED

VIO BLU RED YELYEL ORN BLK BLK

RED WHI/ORNWHI/ORN WHI/YEL

SELECTOR

SWITCH

BLK RED

RED BLK BLU

RED BLK VIO

T C H

A N D

J1-10

E D

B O A R D

J1-16

SW. & THERMOSTAT

BLU-14 BLU-14

BLK

TAN TAN

J1-1

J14-1

J14-7

J7-1

J7-5

BLK

WHI

GRN

RED

J2-1

J1-4

C O N T R O L

J7-10

J8-1

J8-3

J18-1

J18-6

J6-20

GRN

GRN/WHI

BLU/WHI

BLU/BLK

WHI/GRY

NITE

WHI/VIO

RUN

J6-15

ORN

GRN/BLK

WHI/BLK

BLKBLK

SELECTOR

BLK

WHI

SWITCH

RINSE

PRIME

B O A R D

RED/BLK

J6-10

ORN/BLK

RED/WHI

WHI/YEL

TAN

WHI

J2 -8

WHI/GRY

GRY

J6-5

WHI/VIO

WHI/YEL

ORN

J15-1

TAN

TANK HEATER

PORTION

CONTROL

BLK

J3-1

J15-4

J3-6

J4-1

J4-5

J5-1

J5-3

J16-1

J16-5

J16-12

RED

BLK

HEAT SINK

CAPACITOR .01uF

GRNGRN

RED-14RED-14

Fuse 2

WHI/GRY

RED

WHI/YEL BLK

LEFT

CONDUCTANCE

SENSOR

REDRED

WHI/BLU

BLK

PELTIER

t°

COOLING CABINET

WHIWHI

OVERFLOW

PROTECTION SW

RED RED

SOL

HOT WATER

SOL

RIGHT DISP

SOL

LEFT DISP

BLU/BLK

SOL

REFILL

RED

RED/BLK

BRN/BLK

BRN/WHI

WHI/ORN

WHI/RED

RED

BLK

WHI/GRY

RIGHT

CONDUCTANCE

SENSOR

BLK

WHI

BLK

t°

CABINET

THERMISTOR

BLK

ORN

P R O

WHI

BLK

B E

GRN

BLK

BLU

WHI

t°

34766 060611

Bunn LCA-2 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual