Bunn Coffee Maker TU3QF-EZ Installation Manual

BUNN

TU3QF-EZ

OPERATING & SERVICE MANU AL

BUNN-O-MATIC CORPORATION

POST OFFICE BOX 3227

SPRINGFIELD, ILLINOIS 62708-3227

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

www.bunnomatic.com

CONTENTS

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

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

Plumbing Requirements ........................................... 4

Initial Set-Up............................................................. 5

Operating Controls.................................................... 5

Cleaning.................................................................... 6

Tea Brewing .............................................................. 6

Adjustments and Optional Settings........................... 7

Troubleshooting ........................................................ 8

Service.................................................................... 15

Wiring Schematics.................................................. 26

INTRODUCTION

This equipment will brew a four-gallon batch of fresh tea into an awaiting dispenser. The tea will be dispensed at approximately room temperature to conserve ice. The brewer also has a hot water faucet for allied beverage use. The brewer is only for indoor use on a sturdy counter or shelf.

WARRANTY

Bunn-O-Matic Corp. (“Bunn”) warrants the equipment manufactured by it to be commercially free from defects in material and workmanship existing at the time of manufacture and appearing within one year from the date of installation. In addition:

1.) Bunn warrants electronic circuit and/or control boards to be commercially free from defects in material and

workmanship for three years from the date of installation.

2.) Bunn warrants the compressor on refrigeration equipment to be commercially free from defects in material

and workmanship for two years from the date of installation.

3.) Bunn warrants that the grinding burrs on coffee grinding equipment will grind coffee to meet original factory

screen sieve analysis for three years from date of installation or for 30,000 pounds of coffee, whichever comes first.

This warranty does not apply to any equipment, component or part that was not manufactured by Bunn or that, in Bunn’s judgement, has been affected by misuse, neglect, alteration, improper installation or operation, improper maintenance or repair, damage or casualty.

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.

The Buyer shall give 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. If requested by Bunn, the Buyer shall ship the defective equipment prepaid to an authorized Bunn service location. If Bunn determines, in its sole discretion, that the equipment does not conform to the warranty, Bunn shall repair the equipment with no charge for parts during the warranty period and no charge for labor by a Bunn Authorized Service Representative during the warranty period. If Bunn determines that repair is not feasible, Bunn shall, at its sole option, 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, AS SPECIFIED HEREIN, TO REPAIR OR, AT BUNN’S SOLE OPTION, 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.

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USER NOTICES

Carefully read and follow all notices on the equipment and in this manual. They were written for your protec-

tion. All notices on the equipment should be kept in good condition. Replace any unreadable or damaged labels.

#00831.0000

#00656.0000

#03408.0000

#03409.0000

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ELECTRICAL REQUIREMENTS

CAUTION - The brewer must be disconnected from the power source until specified in

120V model brewer requires 2-wire, grounded service rated 120 volts ac, 15 amp, single phase, 60 Hz.

Proceed as follows:

Electrical Hook-Up

CAUTION – Improper electrical installation will damage electronic components.

1. An electrician must provide electrical service as specified.

2. Using a voltmeter, check the voltage at the electrical source.

3. Connect the brewer to the power source.

4. If plumbing is to be hooked up later be sure the brewer is disconnected from the power source. If plumbing

has been hooked up, the brewer is ready for

Initial Set-Up

Initial Set-Up.

PLUMBING REQUIREMENTS

The brewer must be connected to a cold water system 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 brewer. Install a regulator in the line when pressure is greater than 90 psi(620 kPa) to reduce it to 50 psi(345 kPa). The water inlet fitting is 1⁄4" flare.

NOTE - Bunn-O-Matic recommends 1⁄4" copper tubing for installations of less than 25 feet and 3⁄8" for more than 25 feet from the 1⁄2" water supply line. A tight coil of copper tubing in the water line will facilitate moving the brewer to clean the countertop. Bunn-O-Matic does not recommend the use of a saddle valve to install the brewer. 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).

P2183

1. Remove the shipping cap from the bulkhead fitting on the rear of the brewer.

2. Attach the flare fitting from the short piece of tubing on the strainer/flow control (supplied) to the water inlet

fitting at the rear of the brewer.

3. Flush the water line and securely attach it to the flare fitting on the strainer/flow control.

4. Turn on the water supply.

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INITIAL SET-UP

CAUTION - The brewer must be disconnected from the power source throughout the

specified in the instructions.

1. Insert an empty funnel into the funnel rails.

2. Place an empty container of at least 4 gallons capacity under the funnel.

3. Connect the brewer to the power source.

4. Place the "ON/OFF" switch in the "ON" position. Tank will start to fill automatically.

5. Water will flow into the tank and dispense for approximately eighteen minutes, then cycle will stop.

6. Heater circuit will activate automatically.

7. Wait approximately fifty minutes for the water in the tank to heat to the proper temperature. The ready light will be activated when the brewer reaches the proper temperature.

8. Press the START switch to begin a brew cycle. Once water comes out of the sprayhead, place the "ON/OFF" switch in the "OFF" position. This will dispense the expansion water in the tank.

9. Empty contents of the container through the faucet.

10. Place the "ON/OFF" switch in the "ON" position then momentarily press and release the "START" switch.

11. Allow the cycle to finish and measure the amount of water in the container. It should be 512 ounces ±2. Refer

to the adjustments section of this manual should the volume need to be increased or decreased.

The brewer is now ready for use in accordance with the Tea Brewing instructions.

Initial Set-up

, except when

OPERATING CONTROLS

A. ON/OFF Switch

ON - Placing the switch in the "ON" position allows the start switch to activate a timed brew cycle for four gallons

of tea.

OFF - Placing the switch in the "OFF" position stops the brew cycle. Stopping a brew cycle after it has been started will not stop the flow of water into the funnel until the tank syphons down to its proper level. The switch should

always be placed in this position after a brew cycle and whenever the brewer is unattended.

B. Start Switch Starts a brew cycle when the ON/OFF switch is in the "ON" position.

C. Ready Indicator This indicator glows when preselected brew water temperature has been achieved. It is also used for diagnostic testing of brewer.

D. Sanitize Switch Starts a sanitize cycle when pressed and released. This functions when the ON/OFF switch is in the "ON" position.

E. Green Tea/Black Tea Faucet Switch Dispenses hot water for either green tea or black tea.

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CLEANING

CAUTION - CLEAN AND SANITIZE YOUR ICED TEA BREWER DAILY

1. Remove and thoroughly clean the entire brew funnel. The funnel tip and screen must be free from any tea particles or residue. Reassemble the funnel.

2. Place the ON/OFF switch in the "OFF" position. Remove and thoroughly rinse the sprayhead. The holes must be open and clear of any mineral deposits. Wipe the sprayhead panel clean with a damp cloth.

3. Insert the deliming spring into the sprayhead fitting until no more than two inches is visible and move it in and out 5 or 6 times. Insert the spring into the air vent hole in the sprayhead panel and move it in and out 5 or 6 times. Reattach the sprayhead.

4. Wash the entire outside surface of the brewer with a clean damp cloth.

5. Place the empty 4 gallon tea reservoir on the base. Insert funnel into rails. Make sure faucet is closed and lid cover is removed.

6. Place the ON/OFF switch to the "ON" position. Press and release the "Sanitize" Switch.

7. After sanitize cycle ends, let reservoir soak, then empty contents. Let reservoir air dry.

CAUTION - DO NOT KEEP BREWED ICED TEA OVERNIGHT. THE SERVER MUST BE CLEANED DAILY.

TEA BREWING

1. Begin each brew cycle with a clean empty brew funnel and server. (Be sure the server lid doesn’t interfere with the flow of dilution water.)

2. Place the packet of fresh tea leaves into the funnel.

3. Level the bed of tea leaves by gently shaking.

4. Slide the funnel into the funnel rails until it stops.

5. Place the ON/OFF switch in the "ON" position.

6. Momentarily press the start switch.

CAUTION - The funnel contains hot liquids. Remove funnel slowly.

7. Carefully remove the brew funnel and discard the used packet when tea no longer drips from the funnel tip.

8. Place the ON/OFF switch in the "OFF" position to prevent a false start.

9. Fresh tea is available at the faucet on the dispenser.

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TU3QF-EZ ADJUSTMENTS & OPTIONAL SETTINGS

P1864

ADJUSTING BREW VOLUMES

P2174

IMPORTANT - Tank must be full and refill solenoid shut off prior to making these adjustments.

Sprayhead must be installed while making these adjustments.

INCREASING THE BREW VOLUME: Use the following steps when you want to increase the amount of water for

each brew cycle.

1. Place a funnel in the funnel rails and an empty container of at least four gallons beneath the funnel.

2. Turn ON the brewer.

3. Press and hold the brew start switch until you hear the brew solenoid click on-and-off three times (approxi-

mately 5 seconds). Release the switch.

4. Momentarily press and release the brew start switch once for each two seconds to be added to the prior

setting.

5. Allow the cycle to finish. The brewer is now set to dispense this amount of water for each subsequent brew cycle.

DECREASING THE BREW VOLUME: Use the following steps when you want to decrease the amount of water for

each brew cycle.

1. Place a funnel in the funnel rails and an empty container of at least 4 gallons beneath the funnel.

2. Turn ON the brewer.

3. Momentarily press and release the brew start switch once for each two second period to be removed from

the prior setting.

4. Press and hold the brew start switch until you hear the brew solenoid click on-and-off three times (approxi-

mately 5 seconds). Release the switch.

5. Allow the cycle to finish. The brewer is now set to dispense this amount of water for each subsequent brew cycle.

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ADJUSTING BREW VOLUMES (CONT.)

BREW VOLUME SETUP: Use the following steps when the setting is unknown or a different circuit board is being

installed.

1. Place a funnel in the funnel rails and an empty container of at least four gallons beneath the funnel.

2. Turn ON the brewer.

3. Press and hold the brew start switch until you hear the brew solenoid click on-and-off three times (approximately 5 seconds). Release the switch.

4. Allow the cycle to continue until the desired amount of water is dispensed and then turn OFF the brewer.

The brewer is now set to dispense this amount of water for each subsequent brew cycle.

SANITIZE VOLUME: Use the above procedure substituting the sanitize switch for the brew start switch. The

volume for the sanitize function is set for 3 gallons.

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.

• Inspection, testing, and repair of electrical equipment should be performed only by qualified service personnel.

• All electronic components have 120 volt ac and low voltage dc potential on their terminals. Shorting of terminals or the application of external voltages may result in 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 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 to avoid twists and kinks in the tubing.

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

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

WARNING – • Exercise extreme caution when servicing electrical equipment.

• Unplug the brewer when servicing, except when electrical tests are specified.

• Follow recommended service procedures.

• Replace all protective shields or safety notices.

Before troubleshooting this brewer, check for the following:

Before servicing the brewer, make sure that voltage is present at control board. Check for voltage across pins 1 & 7 of the eight pin J1 connector (black and white wires). If voltage is present, proceed with testing. If voltage is not present, check wiring and voltage at socket. Correct the problem and retest before proceeding with testing.

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