Bunn TU5Q Operating & Service Manual
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Bunn TU5Q Operating & Service Manual

Tu5q o/s manual
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BUNN
®
TU5Q
OPERATING & SERVICE MANUAL
BUNN-O-MATIC CORPORATION
POST OFFICE BOX 3227
SPRINGFIELD, ILLINOIS 62708-3227
PHONE: (217) 529-6601 FAX: (217) 529-6644
www.bunnomatic.com
10777.0000B 4/00 © 1994 Bunn-O-Matic Corporation

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  • Page 1 BUNN ® TU5Q OPERATING & SERVICE MANUAL BUNN-O-MATIC CORPORATION POST OFFICE BOX 3227 SPRINGFIELD, ILLINOIS 62708-3227 PHONE: (217) 529-6601 FAX: (217) 529-6644 www.bunnomatic.com 10777.0000B 4/00 © 1994 Bunn-O-Matic Corporation...

  • Page 2: Table Of Contents

    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 substi- tute equipment, facilities or services, or any other special, incidental or consequential damages.

  • Page 3: 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 USER NOTICES Page 3...

  • Page 4: Electrical Requirements

    " 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.

  • Page 5: Initial Set-Up

    CAUTION - The brewer must be disconnected from the power source throughout the Initial Set-Up , except when specified in the instructions. 1. Remove the top lid from the brewer. 2. Rotate the control thermostat knob fully counterclockwise to the "OFF" position. Set the three-gallon timer knob at 4 minutes, the five-gallon timer knob at 6 3/4 minutes, and replace the top lid.

  • Page 6: Operating Controls

    CAUTION - DO NOT KEEP BREWED ICED TEA OVERNIGHT. THE SERVER MUST BE CLEANED DAILY. 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. Insert a BUNN ® filter into the funnel.

  • Page 7: 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 person- nel.
  • Page 8 TROUBLESHOOTING (cont.) PROBLEM Brew cycle will not start (cont.) Water is not hot Dilution cycle will not start PROBABLE CAUSE 6. Brew Timer 7. Brew Solenoid Valve 1. Limit Thermostat CAUTION - Do not eliminate or by- pass limit thermostat or thermal cut-off.
  • Page 9 TROUBLESHOOTING (cont.) PROBLEM Inconsistent beverage level in dispenser Consistently high or low beverage level in the dispenser Spitting or excessive steaming Drip-out time too long PROBABLE CAUSE 1. Syphon System 2. Lime Build-up CAUTION - Tank and tank compo- nents should be delimed regularly depending on local water condi- tions.
  • Page 10 See page 15 Remove the Brew Solenoid Valve and clean any obstruction. Rebuild or replace the valve if necessary. See page 14 BUNN ® paper filters must be used for proper extraction. A sufficient quantity of fresh, loose tea leaves should be used for proper extraction.
  • Page 11 2. Plumbing Lines 3. Water Supply 4. Tank Heater Page 11 REMEDY ® The BUNN paper filter must be centered in the funnel and the bed of tea leaves leveled by gentle shak- ing. Place an empty funnel on an empty dispenser beneath the sprayhead.

  • Page 12: Service

    SERVICE This section provides procedures for testing and replacing various major components used in this brewer should service become necessary. Refer to Troubleshooting for assistance in determining the cause of any problem. WARNING - Inspection, testing, and repair of electri- cal equipment should be performed only by qualified service personnel.

  • Page 13: Batch Selector Switch

    SERVICE (cont.) BATCH SELECTOR SWITCH FIG. 2 BATCH SELECTOR SWITCH Location: The batch selector switch is located in the front of the hood, above and to the right of the brew funnel. It is the second switch from the right. Testing Procedures: 1.

  • Page 14: Brew Solenoid Valve

    SERVICE (cont.) BREW SOLENOID VALVE FIG. 4 BREW SOLENOID VALVE Location: The brew solenoid is located inside the upper rear access panel, on the left side of the bracket when looking at it from the rear of the brewer Test Procedures: 1.

  • Page 15: Brew Timer

    SERVICE (cont.) BREW TIMER FIG. 6 BREW TIMER Location: The brew timer is located in the hood. It consists of the dial plate and circuit board. Test Procedure: 1. Disconnect the brewer from the power source. 2. Remove the wires from terminals TL3, TL4, & TL5 of the timer and rotate the dials fully counterclock- wise.

  • Page 16: Control Thermostat

    SERVICE (cont.) CONTROL THERMOSTAT FIG. 8 CONTROL THERMOSTAT Location: The control thermostat is located inside hood on the right side. Test Procedures: 1. Disconnect the brewer from the power source. 2. Locate the blue/black wire on the control thermo- stat. 3.

  • Page 17: Dilution Solenoid Valve

    SERVICE (cont.) DILUTION SOLENOID VALVE FIG. 10 DILUTION SOLENOID VALVE Location: The dilution solenoid valve is located behind the upper rear access panel on the right side of the bracket, when looking at it from the rear of the brewer. Test Procedures: 1.

  • Page 18: Dilution Switch

    SERVICE (cont.) DILUTION SWITCH FIG. 12 DILUTION SWITCH Location: The dilution switch is located in the front of the hood, above and to the left of the brew funnel, and right of the ON/OFF switch. It is the second switch from the left Test Procedures: 1.

  • Page 19: Limit Thermostat

    SERVICE (cont.) LIMIT THERMOSTAT FIG. 14 LIMIT THERMOSTAT Location: The limit thermostat is located inside the hood on the tank lid. Test Procedure: 1. Disconnect the brewer from the power source and remove the black wire from the limit thermostat. 2.

  • Page 20: On/Off Switch

    SERVICE (cont.) ON/OFF SWITCH FIG. 16 ON/OFF SWITCH Location: The ON/OFF switch is located in the front of the hood, above and to the left of the brew funnel. Test Procedure: 1. Disconnect the brewer from the power source. 2. Remove the black and white/violet wires from the switch terminals.

  • Page 21: Start Switch

    SERVICE (cont.) START SWITCH FIG. 18 START SWITCH Location: The start switch is located in the front of the hood, above and to the right of the brew funnel. Test Procedure: 1. Disconnect the brewer from the power source. 2. Remove the wires from all terminals. 3.

  • Page 22: Tank Heater

    SERVICE (cont.) TANK HEATER FIG. 20 TANK HEATER Location: The tank heater is located inside the tank and se- cured to the tank lid. Test Procedures: 1. Disconnect the brewer from the power supply. 2. With a voltmeter, check the voltage across the black and white or red wires.

  • Page 23: Wiring Diagrams

    10777 041500 Page 23...

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