Bunn Coffee Maker LCR-3 HV Installation Manual

LCR-3 HV

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) Airpots, thermal carafes, decanters, GPR servers, iced tea/coffee dispensers, MCP/MCA pod brewers thermal servers and Thermofresh servers (mechanical and digital)- 1 year parts and 1 year labor.

2) All other equipment - 2 years parts and 1 year labor plus added warranties as speciﬁed below: a) Electronic circuit and/or control boards - parts and labor for 3 years. b) Compressors on refrigeration equipment - 5 years parts and 1 year labor. c) Grinding burrs on coffee grinding equipment to grind coffee to meet original factory screen sieve analysis - parts

and labor for 4 years or 40,000 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, non periodic cleaning and descaling, equipment failures related to poor water quality, damage or casualty. In addition, the warranty does not apply to replacement of items subject to normal use including but not limited to user replaceable parts such as seals and gaskets. 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, Phase Brew, 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, trifecta, Velocity Brew, 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, Daypart, Digital Brewer Control, Nothing Brews Like a BUNN, Pouring Proﬁts, Signature Series, Tea At Its Best, The Horizontal Red Line, Ultra are either trademarks or registered trademarks of Bunn-O-Matic Corporation.

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CONTENTS

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

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

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

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

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

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

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

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

Leveling the Dispenser ..................................................... 6

Installing Pump Tubing .................................................... 7

Operating Controls & Interface ........................................ 8

Initial Fill & Heat ............................................................... 9

Rinse Alarm Feature ....................................................... 10

BIB Empty Lockout Feature ............................................ 11

Brew Temperature Lockout Feature ................................ 11

Energy Saver Mode ........................................................ 11

Optional 2-Product Operation ........................................ 11

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

Loading the Concentrate ................................................ 17

Priming the Concentrate Lines ....................................... 17

Operating the Dispenser ................................................. 18

Filling Cambros or other large containers ...................... 18

Cleaning & Preventive Maintenance ............................... 19

Replacing the Pump Tubing ........................................... 20

Draining the Hot Water................................................... 21

Troubleshooting ............................................................. 22

Field Calibration of the Concentrate Pumps ................... 25

Dispenser Flow Rate Calibration .................................... 25

Field Calibrating the Empty BIB Warning ........................ 26

Schematic Wiring Diagram ............................................ 27

INTRODUCTION

Always follow the Concentrate Manufacturer’s for recommendations for proper Storage and Shelf Life. The product Flavor Proﬁle is extended by the refrigerated cabinet featured in the LCR-3. This dispenser is designed to operate at ambient temperatures from 32°F (0°C) minimum to 104°F (40°C) maximum.

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USER NOTICES

TO MACHINE

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.

37881.0000

Optional Field Wiring

120/208 V, 37.6 A, 7820 W 1PH, 3-Wire + GND, 60HZ

120/240 V, 43.2 A, 10400 W

1PH, 3-Wire + GND, 60HZ

FOR USE ON INDIVIDUAL BRANCH CIRCUIT ONLY

120/208Y V, 32.8 A, 12000 W

3PH, 4-Wire + GND, 60HZ

28181.0004

WARNING: HOT LIQUIDS

37280.0000

! CAUTION

Do not connect to a circuit operating at

00824.0002

more than 150 volts to ground.

27508.0000

Moving Parts.

Do not operate unit with this panel removed.

Type R134A, Amount 13 oz (368.6 gm) Design Pressures: High 276 psi (19 bar) (1.9 MPa) Low 88 psi (6 bar) (0.61 MPa)

Risk Of Electrical Shock.

Disconnect power before servicing unit.

27442.0000

CHARGE

33461.0004

REMINDER!

CLEAN AIR FILTER

LIMPIAR EL FILTRO DE AIRE SEMANALMENTE

WEEKLY

(LOCATED UNDER THE DISPENSER)

RECORDATORIO!

(LOCALIZADO DEBAJO

DEL DISPENSADOR)

CLEAN WEEKLY!

FILTRO DE AIRE

SEMANALMENTE!

40054.0000

AIR FILTER

(LOCATED UNDER THE DISPENSER)

LIMPIAR

(LOCALIZADO DEBAJO

DEL DISPENSADOR)

BLK

L1 L2 L3 N

FROM POWER SOURCE

FOR 3-PHASE OPERATION

CONNECT INPUT WIRING TO

L1,L2,L3 & N AS SHOWN.

RED

BLU

WHI

BLU

BLK

TERMINAL

BLOCK

L1 L2 L3 N

FROM POWER SOURCE

FOR SINGLE PHASE OPERATION

MOVE BLU WIRE INTO

TERMINAL BLOCK WITH BLACK

WIRE, CONNECT INPUT WIRING

TO L1, L2 & N AS SHOWN.

RED

WHI

37947.0002

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ELECTRICAL REQUIREMENTS

TO MACHINE

CAUTION: The dispenser must remain disconnected from power source until speciﬁed in Electrical Hook-Up. The LCR-3 HV is shipped conﬁgured for 3 Phase operation. The internal terminal block must be rewired for 208/240V – 1Phase applications, (see Optional Field Wiring Diagram).

FIELD WIRING TERMINAL BLOCK DIAGRAM

BLU

BLK

L1 L2 L3 N

RED

BLU

WHI

TERMINAL

BLOCK

BLK

RED

L1 L2 L3 N

WHI

FROM POWER SOURCE

Fig 1 Fig 2

FROM POWER SOURCE

For all 208 - 240 Volt Connections: Use No. 6 AWG Wires suitable for 90°C (194 °F)

1. Unit is shipped wired for 3 Phase / 5 wire operation.

2. For 208 - 240V / 1 Phase / 3 Wire: Move the Blue Heater wire to the Top Black Terminal as shown.

3. Unit requires120 Vac from L1 to N.

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. Install a regulator in the line when pressure is greater than 90 psi (620 kPa) to reduce it to 50 psi (345 kPa). The dispenser is set up to deliver to 6 Oz./sec. (177.4 ml/sec) and requires a water supply that can deliver a minimum of 3 gpm (11.4 lpm) at the inlet valve. A shut-off valve should be installed in the line before the dispenser. NOTE: The water inlet ﬁtting is 3/8” ﬂare. Bunn-O-Matic recommends 3/8” ﬂexible tubing from the 1/2” water supply line. At least 18 inches of FDA approved 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 supply water to the dispenser. The size and shape of the hole made in the supply line made by this type of device may restrict water ﬂow.

NOTE: The water level sensors in this machine do not work with de-ionized water and may cause the unit to overﬂow. RO (Reverse Osmosis) water supply systems may need to be treated to restore free ions to the water.

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.

ALTERNATE LOCATION FOR THE WATER AND ELECTRICAL CONNECTIONS

The LCR-3 HV is supplied with the electrical and water connections at the back of the dispenser. However, in some applications it may be more convenient for one or both of these connections to be located in the bottom of the dispenser. To change the location, remove appropriate cover plate(s) from the bottom of the dispenser. Remove the valve and/or electrical clamp and holes plugs from the back of the dispenser and install them in the bottom panel. Re-install the cover plate on the back of the dispenser to cover the open holes. Take care to replace and tighten all water clamps, mounting screws and the plastic hole plugs.

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INITIAL SET-UP

NOTE: The LCR-3 HV dispenser weighs approximately 180 lbs. (82 kg). Use more than one person when lifting

or moving the dispenser.

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

4. 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. 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, lower – right - rear corner 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.

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 (6) adjustable legs to level the dispenser.

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

LEVEL

1/16"

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DRIP TRAY INSTALLATION

1. Unscrew the middle and right front legs (Fig. 1) - just enough to allow the mounting bracket to slide under the legs, (~1/8”).

Caution: The LCR-3 HV is very heavy. Use wood blocks to hold the machine up while working underneath it!

2. Insert the bracket between the legs and the base of the machine and retighten the legs, (Fig. 2).

Fig. 1 Fig. 2

3. Insert the Drip Tray onto the mounting bracket, (Fig. 3). Make sure the drain ﬁtting is still protruding through the hole.

Fig. 3

Optional Drip Tray Drain

A separate drain tube (not supplied) may be attached to ﬁtting in the bottom of the tray, if desired. Note: Drill a ¼” hole in the center of the ﬁtting, before attaching the drain hose. Direct the other end of this hose into a permanent drain.

Alternate Evaporator Drain

For locations where the Drip Tray is not desired, connect a separate drain hose (not supplied) to the Evaporator Drain Fitting and direct the other end of this hose into a permanent drain.

CAUTION: FAILURE TO INSTALL THE DRIP TRAY OR ALTERNATE EVAPORATOR DRAIN WILL RESULT IN WATER DRIPPING ON TO THE COUNTER AND/OR FLOOR UNDER THE DISPENSER.

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 the retainer plate aside.

2. Depress the tension screw and remove it from the notch in the pump body, releasing the pump compression 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 two pumps.

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

Thumbscrew

Tension Screw

Remove Retaining Plate Release Spring Tension Remove Tubing

Tension Screw

2.0”

Lubricate between arrows

Lubricate New Tube

2.0”

Tube Clamp

Install New Tubing Completed Installation

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OPERATING CONTROLS AND INTERFACE

1. Master ON/OFF Switch: Disconnects AC Power to the dispenser.

2. Hot Water Handle: Pull and Hold to dispense hot water manually.

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

4. LCD Display: Displays status, programming menus and fault messages.

5. Volume Selection: Rotate dial to the desired volume prior to dispensing product.

6. Dispense Switches (A-B-C): Push and Release to dispense the desired product.

(These also double as programming switches in the Set-Up mode).

7. 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. RUN: Normal dispense mode - Dispenses mixed product (concentrate and water). c. PRIME: Dispenses concentrate only – Primes the concentrate pump.

8. Hidden Set-Up / Programming switches.

a. Press and hold the Right switch for 5 sec. to enter in the Set-Up mode. b. Use the Right switch to scroll down and the Left switch to scroll up through the menu screens.

8 6

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INITIAL FILL & HEAT

1. Conﬁrm the water supply is on.

2. Connect the dispenser to the power source.

3. Turn the Master ON/OFF Switch ON and select RUN on the Function Selector Switch. The LCD will display

“Tank Filling – Please Wait!” and water will begin ﬂowing into the tank.

4. Once the tank is full the dispenser will start heating the water and display “Heating – Select Flavor”. Dispenser

models with product chillers will also begin to cool the cabinet at this time.

5. The LCD will display “Ready Select Flavor” 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 and the temperature of the incoming water. While the tank is heating, the dispenser may be readied for use as described in Programming Functions & Basic Operations.

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