Bunn LCR-2 PC Coffeemaker User manual

INSTALLATION & OPERATING MANUAL

BUNN-O-MATIC CORPORATION

POST OFFICE BOX 3227

SPRINGFIELD, ILLINOIS 62708-3227

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

36026.0000J 12/06 ©2003 Bunn-O-Matic Corporation

www.bunn.com

CONTENTS

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

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

User Notices .................................................................... 3

Electrical Requirements ................................................... 4

Plumbing Requirements .................................................. 5

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 .......................................... 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

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.

BUNN, LCR-2 and LCR-2 PC are either trademarks or registered trademarks of Bunn-O-Matic Corporation.

2 36026 121506

ELECTRICAL REQUIREMENTS

CAUTION: The dispenser must remain disconnected from power source until specified in Electrical Hook-Up.

The LCR-2 dispenser is supplied with a 120-volt / 15 Amp cord set and require a 2-wire, grounded, individual branch circuit rated for 120 volts AC, 15 amp, single phase, 60Hz. The mating connector must be a NEMA 5-15R.

The LCR-2C dispenser is 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).

HEATER RED

10A. FUSE - WHITE

HEATER RED

10A. FUSE - WHITE

10A. FUSE - BLACK

LIMIT SW. - BLACK

120V A.C.

208 or

240V A.C.

120V A.C.

208 or

4

ELECTRICAL REQUIREMENTS (Cont.)

CAUTION: The dispenser must remain disconnected from power source until specified in Electrical Hook-Up.

The LCR-2A 3 Phase dispenser is internally wired from the factory for 400 Volts AC Phase to Phase, 230 Volts

AC Phase to Neutral, 3 Phase 50/60 Hz. It requires a 4-wire, grounded, individual branch circuit rated for 400

Volts AC, Three Phase, 50/60 Hz. At Three Phase operation, each Phase will have approximately 13.5-14.0

Amps flow through it.

The LCR-2A 3 Phase dispenser can be Field Wired for 230 Volts AC, Single Phase applications. This requires a 2-wire, grounded, individual branch circuit rated for 230 volts AC, Single Phase, 50/60 Hz. At Single Phase operation, the machine will have approximately 27.5 Amps flow through it.

NOTE: The internal terminal block must be rewired for 230 Volts AC, Single Phase applications, (see Optional

Field Wiring Diagram).

BRN

BRN

TERMINAL

RED

BLU BLU

FOR 3-PHASE OPERATION

CONNECT INPUT WIRING TO

L1,L2,L3 & N AS SHOWN.

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.

This equipment must be installed to comply with the Basic Plumbing Code of the Building Officials and Code Administrators International, Inc. (BOCA) and the Food Service Sanitation Manual of the

Food and Drug Administration (FDA). For models installed outside the U.S., you must comply with the applicable Plumbing/Sanitation Code for your area.

5 36026 121506

INITIAL SET-UP

NOTE: The LCR-2 dispenser weighs approximately 100 lbs. (45 kg). If necessary, use more than one person when lifting or moving the dispenser.

1. Cut the two straps and remove the box and foam packing.

2. Locate and remove the information packets and tube kits from top of packaging and set aside.

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

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

5. Confirm the dispenser is level on the counter (See LEVELING THE DISPENSER).

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.

LEVELING THE DISPENSER

Proper leveling of the dispenser is required to insure proper drainage of condensation from the refrigeration unit.

1. Set the dispenser on a level counter top.

2. Use the adjustable legs to level the dispenser on all four corners.

3. Once the unit is level, adjust the front two legs out another 1/16” to create a slight tilt towards the rear of the dispenser. (See Fig. 1)

6 36026 101703

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.

7 36026 120105

SELECTING THE CORRECT PUMP TUBING

There are two pump tube sizes available for use with this dispenser. To determine the correct tubing for your application, first determine the dispenser flow rate you intend to use, refer to Setting Dispenser Flow Rate . Then look up the recommended tube size for 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” I.D. TUBING 1.8 Oz/sec. 3/16” I.D. TUBING

(53 ml/sec.)

2.5 Oz/sec. 3/16” I.D. TUBING

(74 ml/sec.)

1/8” I.D. TUBING

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

2.0”

2.0”

Lubricate between arrows

Lubricate New Tube

Tension Screw

Tube Clamp

Install New Tubing

8

Completed Installation

36026 101703

OPERATING CONTROLS AND INTERFACE

1a. Dispense Handles: Pull and Hold to dispense product.

1b. Dispense Switches: Push and Release to dispense product for Portion Control Models.

2. Stop Switch: Momentary switch stops all dispense functions.

3a. Hot Water Switch: Push and Hold switch to dispense 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

8

7

9

1

4

BUNN ICED COFFEE

AMBIENT UNIT

12

15

14

13

2

10

11

3

9 36026 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

3

4

10 36026 101703

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

Disabled

Warning Only

Alarm Mode

None

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.

11 36026 101703

Rinse Procedure:

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

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

3. Activate the Left dispense until water flow stops automatically, approximately 20 sec.

4. Repeat Steps 2 & 3 for the 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.

12 36026 042104

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

CABINET TEMP XX

L DISPENSE RATIO

(-) 35:1 (+)

SET LF TUBE SIZE

1/8 EXIT 3/16

Use the Down Arrow Key to enter Programming

Functions

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

Select tube size.

Normal Display for LCR models.

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 )

R DISPENSE RATIO

(-) 35:1 (+)

SET RT TUBE SIZE

1/8 EXIT 3/16

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

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

Select tube size.

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

FLAVOR GUARD ?

NO EXIT YES

Select (YES) to activate.

Select (NO) to deactivate.

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 )

If NO - go to LF DISP VOLUME menu.

LF TASTE OK ?

NO EXIT YES

Select (YES) or (NO) 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.

FIND LF TARGET

PULL DISPENSE

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

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

RT TASTE OK ?

NO EXIT YES

Select (YES) or (NO) 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.

FIND RT TARGET

PULL DISPENSE

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

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

13 36026 042104

MENU SCREEN

LOCK FLAVOR ?

EXIT YES

ACTION

Select (YES) or (EXIT)

DESCRIPTION

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

NONE Confirms that sensor calibration was in range and accepted. Scroll down to continue.

Portion Control Settings for Pull & Hold Dispensers

For Portion Control Dispensers (LCR-2 PC, LCR-2C PC, and LCR-2A PC) go to Full Time Portion Control Settings

LF DISP VOLUME

(-) 4.0oz (+)

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

Set the volume to be dispensed during a Left

Portion controlled dispense to:

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

RT DISP VOLUME

(-) 4.0oz (+)

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

Set the volume to be dispensed during a Right

Portion controlled dispense to:

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

Full Time Portion Control Settings

LF DISP VOLUME 1

(-) 4.0oz (+)

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

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

Set the desired portion control volume to be dispensed during a Alternate Left dispense to:

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

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

Set the desired portion control volume to be dispensed during a Normal Right dispense to:

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

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

Set the desired portion control volume to be dispensed during a Alternate Right dispense to:

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

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

Set the desired portion control volume to be dispensed during a Normal Hot Water dispense:

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

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

Set the desired portion control volume to be dispensed during a Alternate Hot Water dispense:

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

14 36026 120105

MENU SCREEN

TANK TEMP 180

(-) EXIT (+)

READY TEMP 175

(-) EXIT (+)

CABINET TEMP 38

(-) EXIT (+)

LF PRODUCT DISP

.0GAL RESET?

LF PRODUCT DISP

.0GAL

RT PRODUCT DISP

.0GAL RESET?

RT PRODUCT DISP

.0GAL

ACTION DESCRIPTION

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

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.


Sets the Chilled Cabinet target temperature [38

- 50°F] or [3 - 10°C]

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

NONE Displays the Total accumulated volume of concentrate dispensed through the Left dispenser.

Not Re-settable. Gal (Liters)

Select (RESET) to clear total Selecting Reset will clear the Current accumulated volume of concentrate dispensed through the

Right dispenser. Gal (Liters)

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 (+)

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

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

SET PASSWORD ?

(-) 0 (+)

SELECT UNITS

ENG EXIT METRIC

CHILLED UNIT ?

NO EXIT YES

RINSE ALARM ?

NO EXIT YES

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

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

Select the preferred units

Select (YES) or (NO)


Used to select the preferred units of measurement.

(Oz., Gal, deg F) or (mL, L, deg C)

LCR Models default to (YES)

Select (NO) to turn the refrigeration system

OFF.

Selecting Yes will enable the Rinse Alarm function,

(see Rinse Alarm )

If NO - go to BIB EMPTY LOCKOUT menu.

15 36026 120105

MENU SCREEN

RINSE TIME ?

(-) 12 Hrs (+)

ACTION

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

DESCRIPTION

Enter the desired time between required Rinse

Cycles in hours, [8 - 24 hrs.]

RINSE LOCKOUT ?

NO EXIT YES

Select (YES) to enable Select YES to Lockout dispensing until the Rinse

Alarm has been cleared. Default is NO

BIB EMPTY LOCKOUT

NO EXIT YES

BREW LOCKOUT ?

NO EXIT YES

DLY REPEAT DISP

(-) 0 SEC (+)

Select (YES) to enable Select YES to Lockout dispensing until the

Concentrate BIB has been replaced. Default is

NO

Select (YES) to enable

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

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

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

CAL LF PUMP VOL

(-) 43mL (+)

CAL LF WTR FLOW ?

PULL DISPENSER

CAL LF WTR VOL

(-) 36.0OZ (+)

CAL LEFT SIDE ?

EXIT YES

CAL RIGHT SIDE ?

EXIT YES

Place a 50 mL (#34843.1000) graduated cylinder under the

Left dispense tip, then activate the Left Dispenser

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

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

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

Preferred Units selected.

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

Left Dispenser

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).

NONE Scroll down to bypass this screen.

Select (YES) to enable

Calibration routine.

16

Selecting Yes will enable the Right Dispenser

Calibration routine, (see Pump Calibration ) prior to calibrating the dispenser.

36026 120105

MENU SCREEN

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 activate the Right Dispenser

The Right Pump will dispense concentrate for

20 seconds, then shut off automatically. Collect and measure the concentrate dispensed.

CAL RT PUMP VOL

(-) 43mL (+)

CAL RT WTR FLOW

PULL DISPENSER


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

Preferred Units selected.

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

Right Dispenser

The Right Dispenser will dispense hot water for

20 seconds, then shut off automatically. Collect and measure the water dispensed.



Right dispenser in Oz. (mL)

CAL RT WTR VOL

(-) 36.0OZ (+)

CAL RIGHT SIDE ?

EXIT YES

NONE Scroll down to bypass this screen.

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

CAL HOT WTR FLO ?

PULL DISPENSE

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

Hot Water Dispenser

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

CAL HOT WTR VOL

(-) 34.0OZ (+)



Hot Water Dispenser in Oz. (mL)

XXX CAL -> XXX

(-) TankTemp (+)

FlvrGrdRange 10%

(-) EXIT (+)

LfFlvrGrdTargets

RPM XXX-CON XXX

RtFlvrGrdTargets

RPM XXX-CON XXX

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

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

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

Used to set the maximum adjustment the Flavor

Guard feature is allowed to make, [3 - 15%].

NONE

NONE

Displays the Left Dispenser target RPM and

Conductance Reading, (Diagnostics Only)

Displays the Right Dispenser target RPM and

Conductance Reading, (Diagnostics Only)

17 36026 120105

MENU SCREEN

BIB EMPTY -> 500

(-) EXIT (+)

XX REFILL -> 155

(-) EXIT (+)

WTR START DELAY

(-) .15SEC (+)

WTR STOP DELAY

(-) .15SEC (+)

TEST LED’S ?

NO EXIT YES

TEST SWITCHES ?

UseSwitchToTest

TEST REFILL ?

EXIT YES

TEST HEATER ?

EXIT YES

ENTER ASSET #

(-) 000000 (+)

SERIAL #

LCR 0000000

FACTORY DEFAULTS

NO YES


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

Used to set the Conductance Threshold for the

Empty BIB warning. Default is 500

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

Used to set the Conductance Threshold for the

Tank Refill Probe.

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

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

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

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


NONE

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.

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

ON.

Momentarily depress (YES) Tank Heater Diagnostic: Press YES to momentarily energize the Tank Heater Circuit.

CAUTION: AC power will be applied to the Tank

Heater Circuit.

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

Allows the user the option of entering an Asset

Number. Default is 000000

NONE


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

Data Plate)

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).

18 36026 061605

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

19 36026 042104

OPERATING THE PULL & HOLD DISPENSER

(Models LCR-2, LCR-2C, LCR-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.

20 36026 042104

OPERATING THE PRESET PORTION CONTROL DISPENSER

(Models LCR-2 PC, LCR-2C PC, LCR-2A PC)

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

Dispensing Preset Portions of Coffee or Hot Water

1. Primary Volume Portion Dispense Mode. (Volume 1) Refer to Programming 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.


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.


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.

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.

21 36026 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


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 on 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 the 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


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 being dispensed, stop dispensing and allow the solution to sit for 5 minutes.

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

10. Remove the mating connector from the bag connector.

11. Reattach the bag connector to product box.

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

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

14. Repeat steps 1 through 13 for other dispense head.

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

Weekly: REFRIGERATION AIR FILTER

1. Remove the screen filter from the back of the dispenser.

2. Wash the screen in a mild detergent solution.

3. Use a soft bristled brush to remove all dust and grease.

4. Reinstall the screen on the back of the dispenser.

22 36026 042104

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.

Thumbscrew

Tension

Screw

Remove Retaining Plate Release Spring Tension Remove Tubing

2.0”

2.0”

Lubricate between arrows

Lubricate New Tube

Tension Screw

Tube Clamp

Install New Tubing Completed Installation

23 36026 101703

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.

24 36026 101703

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 qualified 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 fittings 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 specified. 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

Dispenser Not plugged in.

AC Circuit Breaker OFF

Ready LED “OFF”

Water Temp. Too Low

Usage has exceeded the capacity of the Tank Heater

Rinse LED “ON”

Rinse Timer

Rinse Cycle Required

Rinse LED “FLASHING”

Rinse Lockout Enabled

Dispenser Locked Out

Rinse Cycle Required

Portion LED “ON”

Portion Dispense

Enabled

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 Procedure

Rinse Dispenser, see Rinse Procedure

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

25 36026 042104

Troubleshooting (Continued)

Left Refill LED “ON”

Left BIB Empty

Right Refill LED “ON”

Right BIB Empty

Concentrate BIB is Empty.

BIB Not properly connected

Tubing kinked or blocked

Empty BIB warning set too high

Replace BIB, see Loading the Concentrate

Check BIB Connector Fittings

Check Tubing Installation

Check Threshold, see Field Calibrating the

Emoty BIB Warning

Concentrate BIB is Empty.

BIB Not properly connected

Tubing kinked or blocked

Empty BIB Warning set too high

Replace BIB, see Loading the Concentrate


Check Tubing Installation

Check Threshold, see Field Calibrating the

Empty BIB Warning

Left Dispenser will not operate Replace BIB, see loading the Concentrate Left Refill LED

“FLASHING”

Empty BIB Lockout

Enabled

Right Refill LED

“FLASHING”

Empty BIB Lockout

Enabled

Right Dispenser will not operate Replace BIB, see loading the Concentrate

All LED’s “FLASHING”

Fauly 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.

26 36026 101703


Dispenser Diagnostics-LCD Display

Screen Displayed Possible Cause

LF TARGET RPM

TOO HIGH !!

Troubleshooting Procedures

1. The Tube Size selected for the Left

Hand Dispenser is too small for the application.

Refer to “Selecting the Correct Pump

Tubing” section of the manual.

TUBE TOO SMALL

CHECK DISP RATIO

RT TARGET RPM

TOO HIGH !!

TUBE TOO SMALL

CHECK DISP RATIO

LF TARGET RPM

TOO LOW !!

TUBE TOO LARGE

CHECK DISP RATIO

RT TARGET RPM

TOO LOW !!

TUBE TOO LARGE

CHECK DISP RATIO

2. The Ratio selected for the Left Hand

Dispenser is not correct for the application.

Refer to recommended Dispense Ratio on the product label.

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.


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.


Service Required

Service Required

LEFT PUMP FAULT!

CHK PUMP WIRING

CHK RPM SENSOR

CHK TUBING AREA

RT PUMP FAULT!

CHK PUMP WIRING

CHK RPM SENSOR

CHK TUBING AREA

1. Motor failure

2. RPM Sensor failure

1. Motor failure

2. RPM Sensor failure

Service Required

Service Required

27 36026 041204

Screen Displayed

LEFT BIB EMPTY!

REPLACE PRODUCT

CHECK THRESHOLD

RIGHT BIB EMPTY!

REPLACE PRODUCT

CHECK THRESHOLD

OVERFLOW CUP

FULL. EMPTY CUP

HEATING TIME TOO

LONG

CHECK HEATING

CIRCUIT

FILL TIME TOO LONG

CHECK WATER SUPPLY


Possible Cause

1. Concentrate BIB is Empty.


Replace BIB, see loading the

Concentrate

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.

4. Empty BIB Warning set too high.


Check Tubing installation

Check Threshold, see Field Calibrating the Empty BIB Warning

Replace BIB, see loading the

Concentrate


Check Tubing installation

Check Threshold, see Field Calibrating the Empty BIB Warning

1. Refill valve stuck open Service Required

2. Faulty refill probe Service Required

3. Faulty overflow switch Service Required

1. Tank Heater failure Service Required

2. Triac failure Service Required

3. Tank Temp. sensor failure

1. Water shut off to dispenser

Service Required

Check water supply shut-off

2. Inlet Solenoid Valve failure Service Required

1. Corresponding Temperature Sensor

Probe wire(s) broken or disconnected

Service Required TANK TEMP SENSOR

OUT OF RANGE

CHECK FOR BAD

CONNECTIONS

TANK TEMP SENSOR

OUT OF RANGE

CHECK WIRE FOR

SHORTS


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

Service Required

28 36026 041204

Screen Displayed

COOL TEMP SENSOR

OUT OF RANGE

CHECK FOR BAD

CONNECTIONS

COOL TEMP SENSOR

OUT OF RANGE

CHECK WIRE FOR

SHORTS

EVAP TEMP SENSOR

OUT OF RANGE

CHECK FOR BAD

CONNECTIONS

EVAP TEMP SENSOR

OUT OF RANGE

CHECK WIRE FOR

SHORTS

COOLER FAULT!

EVAP TEMP TOO HI

CHECK EVAP FAN

CHK EVAP SENSOR

COOLING TIME

TOO LONG

CHECK AIR FILTER

CHECK COOLING UNIT

COND PROBE FAULT

CHECK COND PROBES

CHK DISP SWITCHES

CHK CONNECTIONS

JUMPER FAULT!

CONFIG NOT VALID

CHECK J-18

ON CONTROL BOARD


Possible Cause

1. C o r r e s p o n d i n g Te m p e r a t u r e

Sensor Probe wire(s) broken or disconnected.

2. Product cabinet temperature too low.



2. Product cabinet temperature too high.


Probe wire(s) broken or disconnected.

2. Evaporator temperature too low.



2. Evaporator temperature too high.

1. Cabinet circulating fan failure

2. Ice build up on evaporator coils

3. Evaporator sensor failure

1. Air intake filter clogged

2. Wiring failure

3. Compressor failure

1. Tube leaking

2. Dispense switch failure

3. Dispense valve leaking

1. Invalid wire harness configuation

29


Service Required

Service Required

Service Required

Service Required

Service Required

Service Required

Service Required

Service Required

Service Required

Service Required

Service Required

Clean Air Filter

Check wiring harness for breaks, shorts, open connectors

Service Required

Check pump & tubing for proper installation

Service Required

Service Required

Service Required

36026 121506

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

3/16” tubing

1/8” tubing

Volume Collected

40 - 47 ml.

17 - 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)

30 36026 042104

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___________

1.8 Oz/sec (53 ml/sec) w/ flow restrictor

2.5 Oz/sec (74 ml/sec) w/o flow restrictor

____Volume Collected____

32 - 38 Oz, (946 - 1124 ml)

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.

31 36026 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 FlavorGard TM 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 .

32 36026 120105

SCHEMATIC WIRING DIAGRAM LCR-2/LCR-2, PC/LCR-2C/LCR-2C, PC

GRN L2 (120/208-240V 3-Wire)

N (120V 2-Wire)

N (120/208-240V 3-Wire)

L2 (208-240V 2-Wire)

TUBE

WARMER

TUBE

WARMER

TOUCHPAD

YES (+)

EXIT

NO (-)

BLK LEFT

PUMP

RED

BLK RIGHT

PUMP

RED

6

7

4

5

1

2

3

BLK-14

BLK

RED

BLK

BLK

RED

-V

+V

UNIVERSAL

POWER SUPPLY

N(L2)

L(L1)

-V

+V

WHI

BLK

GRN

GRN

RED

BLK-14

TRIAC

BLU-14

SW. & THERMOSTAT

BLU-14

TANK HEATER

BLK-14

RED-14

1

LIMIT

THERMOSTAT

2

3 4

PORTION

CONTROL

DOOR

LEFT RPM

SENSOR

RIGHT RPM

SENSOR

RED

BLK

GRN

RED

BLK

GRN

RED

BLK

BLU

RED

BLK

VIO

WHI/YEL

YEL

ORN

WHI/ORN

J14-1

J14-7

VIO

BLU

RED

YEL

ORN

BLK

BLK

RED

WHI/ORN

WHI/YEL

J7-1

J7-5

J7-10

GRN

J8-1

J8-3

J18-1

O

A

C

B

R

D

L

P

R

O

N

T

C

O

J3-1

WHI/BLU

RED

WHI/RED

J3-6

BLK

J4-5

J5-1

J5-3

J16-1

J4-1

RED

RED/BLK

BRN/WHI

BRN/BLK

WHI/GRY

BLU/BLK

J16-5

BLK

BLK

BLK

BLK

GRN

BLU

ORN

WHI/ORN

WHI/YEL

PNK

J16-12

RED-14

RED-14

WHI

OVERFLOW

PROTECTION SW

RED RED

WHI/GRY

SOL

RED

RED

HOT WATER

SOL

RED/BLK

BRN/BLK

RIGHT DISP

RED

SOL

LEFT DISP

BRN/WHI

RED

SOL

BLU/BLK

REFILL

WHI/GRY

WHI/YEL

JUMPER

WHI/YEL

WHI/YEL

DISPENSERS WITH PORTION CONTROL

GRN

J18-6

J18-7

J17-4

BLK

YEL

J17-1

WHI/YEL

BLK

BLU

BLK

YEL

1

4

BLK

BLU

BLK

YEL

LEFT

CONDUCTANCE

SENSOR

BLK WHI/ORN BLK

RIGHT

CONDUCTANCE

SENSOR

GRN

LF DISP. SW.

RT DISP. SW.

O

A

R

D

L

E

D

B

C

H

A

N

D

S

W

T

I

J1-1

J1-5

J1-10

J1-16

BLU/WHI

RED/BLK

GRN

ORN/BLK

GRN/WHI

BLK

RED/WHI

BLU/BLK

RED

GRN/BLK

WHI/BLK

ORN

WHI

BLK

SELECTOR

SWITCH

NITE

WHI/GRY

RUN

WHI/VIO

BLK

SELECTOR

SWITCH

RINSE

WHI/YEL

PRIME

TAN

BLK

WHI/BLU

RED

WHI/RED

1

WHI/BLU

RED

WHI/RED

BLK

6

BLK

C

P

F

D

T

-

+

+

120 VOLTS AC 2 WIRE

120/208-240 VOLTS AC 3 WIRE

208-240 VOLTS AC 2 WIRE

SINGLE PHASE 50/60HZ

36025.0000G 09/06 © 2003 BUNN-O-MATIC CORPORATION

Models without Master ON/OFF Switch

1 2 t

CABINET

THERMISTOR

COMPRESSOR

2 1 t

EVAPORATOR

SENSOR

WHI/RED

BLK

CONDENSER FAN

REFRIGERATION CABINET

CONDENSER

P

R

O

B

E

1

BLK ORN t

33 36026 121506

SCHEMATIC WIRING DIAGRAM

LCR-2/LCR-2, PC/LCR-2C/LCR-2C, PC

MASTER ON/OFF

SWITCH

L1

BLK-14 RED-14

N (120V 2-Wire)

L2 (208-240V 2-Wire)

GRN

TUBE

WARMER

TUBE

WARMER

TOUCHPAD

YES (+)

EXIT

NO (-)

5

6

7

3

4

1

2

BLK-14

RED

BLK

BLK

RED

-V

+V

UNIVERSAL

POWER SUPPLY

N(L2)

L(L1)

-V

+V

WHI

BLK

GRN

GRN

RED

LEFT RPM

SENSOR

RIGHT RPM

SENSOR

RED

BLK

GRN

RED

BLK

GRN

RED

BLK

BLU

RED

BLK

VIO

BLK LEFT

PUMP

RED

BLK RIGHT

PUMP

RED

WHI/YEL

YEL

ORN

WHI/ORN

BLK-14

TRIAC

BLU-14

SW. & THERMOSTAT

BLU-14

TANK HEATER

BLK-14

RED-14

1

LIMIT

THERMOSTAT

2

3 4

J14-1

J14-7

VIO

BLU

RED

YEL

ORN

BLK

BLK

RED

WHI/ORN

WHI/YEL

J7-1

J7-5

J7-10

GRN

J8-1

J8-3

J18-1

O

A

C

B

R

D

L

P

R

O

N

T

C

O

PORTION

CONTROL

DOOR

J3-1

WHI/BLU

RED

WHI/RED

J3-6

BLK

J4-5

J5-1

J5-3

J16-1

J4-1

RED

RED/BLK

BRN/WHI

BRN/BLK

WHI/GRY

BLU/BLK

J16-5

BLK

BLK

BLK

BLK

GRN

BLU

ORN

WHI/ORN

WHI/YEL

PNK

J16-12

RED-14

WHI

OVERFLOW

PROTECTION SW

RED RED

WHI/GRY

SOL

RED

HOT WATER

RED/BLK

RED

SOL

BRN/BLK

RIGHT DISP

RED

SOL

LEFT DISP

RED

SOL

BRN/WHI

BLU/BLK

REFILL

WHI/GRY

WHI/YEL

JUMPER

WHI/YEL

WHI/YEL


GRN

J18-6

J18-7

J17-4

BLK

YEL

J17-1

WHI/YEL

BLK

BLU

BLK

YEL

1

4

BLK

BLU

BLK

YEL

LEFT

CONDUCTANCE

SENSOR

BLK WHI/ORN BLK

RIGHT

CONDUCTANCE

SENSOR

GRN

LF DISP. SW.

RT DISP. SW.

O

A

R

D

L

E

D

B

C

H

A

N

D

S

W

T

I

J1-1

J1-5

J1-10

J1-16

BLU/WHI

RED/BLK

GRN

ORN/BLK

GRN/WHI

BLK

RED/WHI

BLU/BLK

RED

GRN/BLK

WHI/BLK

ORN

WHI

BLK

SELECTOR

SWITCH

NITE

WHI/GRY

RUN

WHI/VIO

BLK

SELECTOR

SWITCH

RINSE

WHI/YEL

PRIME

TAN

BLK

WHI/BLU

RED

WHI/RED

1

WHI/BLU

RED

WHI/RED

BLK

6

BLK

D

C

+

F

P

-

+

T

120 VOLTS AC 2 WIRE

120/208-240 VOLTS AC 3 WIRE

208-240 VOLTS AC 2 WIRE

SINGLE PHASE 50/60HZ

36025.0003A 01/07 © 2007 BUNN-O-MATIC CORPORATION

Models with Master ON/OFF Switch

1 2 t

CABINET

THERMISTOR

COMPRESSOR

2 1 t

EVAPORATOR

SENSOR

WHI/RED

BLK

CONDENSER FAN


CONDENSER

P

R

O

B

E

1

BLK ORN t

34 36026 121506

TUBE

WARMER

TUBE

WARMER

TOUCHPAD

YES (+)

EXIT

NO (-)

LEFT RPM

SENSOR

RIGHT RPM

SENSOR

BLK LEFT

PUMP

RED

BLK RIGHT

PUMP

RED

6

7

4

5

1

2

3

L1

RED

BLK

GRN

RED

BLK

GRN

BLK

RED

BLK

CAPACITOR .01uF

GRN

BLK-14

BLK

Fuse 1

BLK

10 AMP

UNIVERSAL

POWER SUPPLY

BLK

RED

-V

+V

SCHEMATIC WIRING DIAGRAM LCR-2A/LCR-2A, PC

GRN

RFI SUPPRESION

CAPACITOR 2.2uF

CAPACITOR .01uF

GRN

BLK

BLK-14

TRIAC

BLU-14

SW. & THERMOSTAT

BLU-14

TANK HEATER

DOUBLE POLE

LIMIT THERMOSTAT

1 2

RED-14

3 4

RED-14

PORTION

CONTROL

WHI

Fuse 2

10 AMP

WHI

N

OVERFLOW

PROTECTION SW

RED RED

N(L2)

L(L1)

-V

+V

WHI

BLK

GRN

GRN

RED

DOOR

J14-1

J3-1

J3-6

WHI/BLU

RED

WHI/RED

BLK

WHI/GRY

SOL

RED

RED

HOT WATER

SOL

RED/BLK

BRN/BLK

RIGHT DISP

RED

SOL

LEFT DISP

BRN/WHI

RED

SOL

BLU/BLK

REFILL

RED

BLK

BLU

RED

BLK

VIO J14-7

J4-1

RED

RED/BLK

BRN/WHI

BRN/BLK

WHI/GRY

WHI/YEL

YEL

ORN

WHI/ORN

WHI/YEL

VIO

BLU

RED

YEL

ORN

BLK

BLK

RED

WHI/ORN

WHI/YEL

GRN

J7-1

J7-5

J7-10

J8-1

J8-3

J18-1

P

C

B

O

A

R

D

R

O

L

N

T

C

O

J4-5

J5-1

J5-3

J16-1

J16-5

J16-12

BLU/BLK

BLK

BLK

BLK

BLK

GRN

BLU

ORN

WHI/ORN

WHI/YEL

PNK

JUMPER

WHI/YEL

WHI/YEL

GRN

J18-6

J18-7

J17-4

BLK

YEL WHI/YEL BLK WHI/ORN

J17-1

LF DISP. SW.


BLU/WHI BLU/BLK

BLK

BLU

BLK

YEL

1

4

BLK

BLU

BLK

YEL

LEFT

CONDUCTANCE

SENSOR

WHI/GRY

BLK

RIGHT

CONDUCTANCE

SENSOR

RT DISP. SW.

S

W

I

T

C

H

A

N

D

J1-1

J1-5

L

E

D

J1-10

B

O

A

R

D

J1-16

BLU/WHI

RED/BLK

GRN

ORN/BLK

GRN/WHI

BLK

RED/WHI

BLU/BLK

RED

GRN/BLK

WHI/BLK

ORN

WHI

1 2 t°

CABINET

THERMISTOR

2

GRN

1 t°

EVAPORATOR

SENSOR

P

R

O

B

E

1

BLK ORN t°

BLK

SELECTOR

SWITCH

NITE

WHI/GRY

RUN

WHI/VIO

BLK

SELECTOR

SWITCH

RINSE

WHI/YEL

PRIME

TAN

BLK

WHI/BLU

RED

WHI/RED

1

WHI/BLU

RED

WHI/RED

BLK

6

BLK

C

P

T

+

F

+

-

D COMPRESSOR

WHI/RED

BLK

CONDENSER FAN

CONDENSER

230 VOLTS AC

2 WIRE

SINGLE PHASE

50HZ

36025.0001G 09/06 © 2003 BUNN-O-MATIC CORPORATION


35 36026 092706

TUBE

WARMER

TUBE

WARMER

TOUCHPAD

RED

GRN

YES (+)

EXIT

NO (-)

6

7

4

5

1

2

3

RED

GRN

+V

-V

UNIVERSAL

POWER SUPPLY

+V

-V

GND

N(L2)

L(L1)

RED

GRN

GRN

GRN

WHI

BLU

BRN/BLK

LEFT RPM

SENSOR

RIGHT RPM

SENSOR

RED

BLK

GRN

RED

BLK

GRN

RED

BLK

BLU

RED

BLK

VIO

BLK

BLK

LEFT

PUMP

RIGHT

PUMP

RED

RED

WHI/YEL

YEL

ORN

WHI/ORN

J14-1

J14-7

BLK

BLK

RED

WHI/ORN

WHI/YEL

VIO

BLU

RED

YEL

ORN

J7-1

J7-5

J7-10

ORN

J18-1

ORN

ORN

ORN

J18-5

J18-9

WHI/ORN

J18-1

WHI/ORN

WHI/ORN

J18-5

J18-9

LF DISP. SW.

RT DISP. SW.

A

N

D

L

E

D

B

O

A

R

D

S

W

T

I

C

H

J1-1

J1-5

J1-10

J1-16

BLU/WHI

RED/BLK

GRN

ORN/BLK

GRN/WHI

BLK

RED/WHI

BLU/BLK

RED

GRN/BLK

WHI/BLK

ORN

WHI

BLU/WHI BLU/BLK

400 VOLTS A.C.

PHASE TO PHASE

230 VOLTS AC

PHASE TO NEUTRAL

3 PHASE 50/60 HZ

BLK

SELECTOR

SWITCH

NITE

WHI/GRY

RUN

WHI/VIO

BLK

SELECTOR

SWITCH

RINSE

WHI/YEL

PRIME

TAN

BLK

36025.0002A 12/06 © 2006 BUNN-O-MATIC CORPORATION

White Strip-Tac Plus

Black Ink

Finished Size: 6" x 7.375"

~ 47% Reduction

L

P

R

O

C

N

T

C

O

A

R

B

O

D

PORTION

CONTROL

DOOR

RED

BLK

TAN

J3-1

WHI/BLU

RED

WHI/RED

J3-6

BLK

J4-5

J5-1

J5-3

J16-1

J4-1

RED

RED/BLK

BRN/WHI

BRN/BLK

WHI/GRY

BLU/BLK

J16-5

BLK

BLK

BLK

BLK

GRN

BLU

ORN

WHI/ORN

WHI/YEL

PNK

J16-12

J17-4

J17-1

36

OVERFLOW

PROTECTION SW

RED RED WHI/GRY

SOL

RED

RED

HOT WATER

SOL

RED/BLK

BRN/BLK

RIGHT DISP

RED

SOL

LEFT DISP

BRN/WHI

RED

SOL

BLU/BLK

REFILL

WHI/YEL BLK

LEFT

CONDUCTANCE

SENSOR

WHI/ORN

RIGHT

BLK

CONDUCTANCE

SENSOR

GRN

P

R

O

B

E

1

BLK ORN t

Bunn LCR-2 PC Coffeemaker User manual

INSTALLATION & OPERATING MANUAL

BUNN-O-MATIC CORPORATION

www.bunn.com

ELECTRICAL REQUIREMENTS

ELECTRICAL REQUIREMENTS (Cont.)

PLUMBING REQUIREMENTS

INITIAL SET-UP

ELECTRICAL HOOK-UP

PLUMBING HOOK-UP

LEVELING THE DISPENSER

SETTING DISPENSER FLOW RATE

SELECTING THE CORRECT PUMP TUBING

OPERATING CONTROLS AND INTERFACE

INITIAL FILL & HEAT

FlavorGard™ Feature

Rinse Alarm Feature

BIB Empty Lockout Feature

Brew Temperature Lockout Feature

PROGRAMMING THE DISPENSER

LOADING THE CONCENTRATE

PRIMING THE CONCENTRATE LINES

OPERATING THE PULL & HOLD DISPENSER

OPERATING THE PRESET PORTION CONTROL DISPENSER

CLEANING & PREVENTATIVE MAINTENANCE

REPLACING THE PUMP TUBING

DRAINING THE HOT WATER TANK

Troubleshooting

Front Panel LED Display Messages

Troubleshooting (Continued)

Troubleshooting (Continued)

Dispenser Diagnostics-LCD Display

Troubleshooting (Continued)

Troubleshooting (Continued)

Field Calibration of the Concentrate Pumps / Dispenser Flow Rates

Field Calibration of the Concentrate Pumps / Dispenser Flow Rates

(Continued)

Field Calibrating the Hot Water Flow Rate

Field Calibrating the Empty BIB Warning

Models without Master ON/OFF Switch

Models with Master ON/OFF Switch

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Table of contents