Manual de instrucciones de Bunn TWF

Manual de instrucciones del aparato Bunn TWF

Aparato: Bunn TWF
Categoría: Máquina de café
Fabricante: Bunn
Tamaño: 1.36 MB
Fecha de añadido: 8/31/2013
Número de páginas: 32
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Resumen del contenido incluido en la página 1

®
BUNN TW
TWF
DISCONTINUED VERSION
The information in this manual
is no longer current.
OPERATING & SERVICE MANUAL
BUNN-O-MATIC CORPORATION
POST OFFICE BOX 3227
SPRINGFIELD, ILLINOIS 62708-3227
TELEPHONE: (217) 529-6601 FAX: (217) 529-6644
10510.0000 11/00 © 1990 Bunn-O-Matic Corporation

Resumen del contenido incluido en la página 2

CONTENTS Introduction ............................................................. 2 Warranty .................................................................. 2 User Notices ............................................................ 3 Electrical Requirements........................................... 4 Plumbing Requirements.......................................... 4 Initial Set-Up............................................................ 5 Adjusting Brew Controls ........................

Resumen del contenido incluido en la página 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 #00656.0000 #03408.0000 #00831.0000 #02822.0000 #03409.0000 10510 081599 Page 3

Resumen del contenido incluido en la página 4

ELECTRICAL REQUIREMENTS CAUTION - The brewer must be disconnected from the power source until specified in Initial Set-Up. 120V model brewers require 2-wire, grounded service rated 120 volt ac, 15 amp, single phase, 60 Hz. L2 RED 120/208V model brewers require 3-wire, grounded service rated 120/ 120V.A.C. WHITE 208V.A.C. 208 volt, 20 amp, single phase, 60 Hz. NEUTRAL 120V.A.C. L1 BLACK Electrical Hook-Up CAUTION – Improper electrical installation will damage electronic components. 1. An electric

Resumen del contenido incluido en la página 5

PLUMBING REQUIREMENTS (cont.) P1394 P1392 BREWERS W/FAUCET BREWERS W/OUT FAUCET INITIAL SET-UP CAUTION – The brewer must be unplugged throughout the initial set-up, except when specified in the instruc- tions. 1. Remove the top lid from the brewer. 2. Rotate the control thermostat knob fully counterclockwise to the “OFF” position and replace the top lid. 3. Insert the funnel (empty) into the funnel rails. 4. Place an empty tea dispenser on the brewer base. Be prepared to empty the dispenser a f

Resumen del contenido incluido en la página 6

INITIAL SET-UP (cont.) ADJUSTING BREW VOLUMES CAUTION - Disconnect the power source from the brewer prior to the removal of any panel for the replacement or adjustment of any component. NOTE: Prior to setting or modifying batch sizes, check that the brewer is connected to water supply, the tank is properly filled, and a funnel and server are in place. 1. Modifying batch sizes. To modify a batch volume, first check that the SET/LOCK switch is in the “SET” position on the circuit board. To increa

Resumen del contenido incluido en la página 7

OPERATING CONTROLS A. TEA/OFF/COFFEE Switch TEA– Placing the switch in the left position allows the start switch to activate a timed brew cycle delivering .5 gallon of tea concentrate and 2.5 gallons of dilution water into the dispenser. OFF – Placing the switch in the center position stops the brew cycle. Stopping a brew cycle after it has started will not stop the flow of water into the funnel until the tank syphons down to its level. The switch should always be placed in this position afte

Resumen del contenido incluido en la página 8

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. • All electronic components have 120 volt ac and low voltage dc potential on their terminals. Shorting of terminals or the ap

Resumen del contenido incluido en la página 9

TROUBLESHOOTING (cont.) PROBLEM PROBABLE CAUSE REMEDY Brew cycle(s) will not start (cont.) 6. Brew Timer Refer to Service - Brew Timer (Iced A) Iced Tea Tea) for testing procedures. See page 20 or 21 B) Hot Coffee Refer to Service - Brew Timer (Hot Coffee) for testing procedures. See page 17 or 18 7. Brew Solenoid Valve Refer to Service - Brew Solenoid A) Iced Tea Valve (Iced Tea) for testing proce- dures. See page 16 Refer to Service- Brew Solenoid B) Hot Coffee Valve (Hot Coffee) for testing

Resumen del contenido incluido en la página 10

TROUBLESHOOTING (cont.) PROBABLE CAUSE PROBLEM REMEDY Dilution (Iced Tea) cycle will not 2. Start Switch Refer to Service - Start Switch for start (cont.) testing procedures. See page 27 3. Brew Timer (Iced Tea) Refer to Service- Brew Timer (Iced Tea) for testing procedures. See page 20 or 21 4. Brew Solenoid Valve (Iced Tea) Refer to Service - Brew Solenoid Valve (Iced Tea) for testing proce- dures. See page 16 5. Dilution Solenoid Valve Refer to Service - Dilution Solenoid Valve for testing pr

Resumen del contenido incluido en la página 11

TROUBLESHOOTING (cont.) PROBLEM PROBABLE CAUSE REMEDY Consistently high or low beverage 2. External Strainer/Flow Control (A) Direction of flow arrow must be level in the dispenser. (cont.) pointing towards brewer. (.750 GPM) (B) Remove the strainer/flow con- trol and check for obstructions. Clear or replace. Spitting or excessive steaming 1. Lime Build-up Inspect tank assembly for excessive CAUTION - Tank and tank compo- lime deposits. Delime as required. nents should be delimed regularly depen

Resumen del contenido incluido en la página 12

TROUBLESHOOTING (cont.) PROBLEM PROBABLE CAUSE REMEDY Water flows into tank continuously 1. Brew Timer Refer to Service - Brew Timer (Iced A) Iced Tea (TEA/OFF/COFFEE Switch in the Tea) for testing procedures. See "TEA or "COFFEE" position) page 20 or 21 B) Hot Coffee Refer to Service- Brew Timer (Hot Coffee) for testing procedures. See page 17 or 18 1. Brew Solenoid Valve Water flows into tank continuously Refer to Service - Brew Solenoid (TEA/OFF/COFFEE Switch in the A) Iced Tea Valve (Iced T

Resumen del contenido incluido en la página 13

TROUBLESHOOTING (cont.) PROBLEM PROBABLE CAUSE REMEDY ® Weak beverage 1. Filter Type BUNN paper filters must be used for proper extraction. 2. Tea or Coffee A sufficient quantity of fresh tea leaves or coffee should be used for proper extraction. 3. Sprayhead A six-hole (or seven-hole for Mod- els with 90 oz concentrate option) stainless steel sprayhead must be used for proper extraction. ® paper filter must be cen- 4. Funnel Loading The BUNN tered in the funnel and the bed of tea leaves lev

Resumen del contenido incluido en la página 14

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. The brewer should be disconnected from the power source when servicing, except when electrical tests are required and the test procedure spe- cific

Resumen del contenido incluido en la página 15

SERVICE (cont.) If continuity is not present as described, replace the solenoid valve. BREW SOLENOID VALVE (HOT COFFEE) 6. Check the hot coffee solenoid valve for coil ac- tion. Connect the brewer to the power source. With TEA/OFF/COFFEE switch in the "COFFEE" position press the START switch and listen carefully in the vicinity of the solenoid valve for a "clicking" sound as the coil magnet attracts. 7. Disconnect the brewer from the power source. If the sound is heard as described and water wi

Resumen del contenido incluido en la página 16

SERVICE (cont.) If continuity is not present as described, replace the solenoid valve. BREW SOLENOID VALVE (ICED TEA) 6. Check the iced tea solenoid valve for coil action. Connect the brewer to the power source. With TEA/ OFF/COFFEE switch in the "TEA" position press the START switch and listen carefully in the vicin- ity of the solenoid valve for a "clicking" sound as the coil magnet attracts. 7. Disconnect the brewer from the power source. If the sound is heard as described and water will no

Resumen del contenido incluido en la página 17

SERVICE (cont.) If continuity is not present as described, refer to the Wiring Diagrams and check the wiring harness. BREW TIMER (HOT COFFEE- Early Models) 5. With a voltmeter, check the voltage across termi- nals TL1 and TL4 when the TEA/OFF/COFFEE switch is in the “COFFEE” position and the START switch is momentarily placed in the lower posi- tion. Connect the brewer to the power source. The indication must be 120 volts ac for two wire 120 volt models and three wire 120/208 volt mod- els for

Resumen del contenido incluido en la página 18

SERVICE (cont.) DIGITAL BREW TIMER (HOT COFFEE -Late Models) 6. With a voltmeter, check the voltage across termi- nals TL1 and TL4 when the "TEA/OFF/COFFEE" switch is in the "COFFEE" position. Connect the brewer to the power source. The indication must be 0 volts. If voltage is as described, proceed to #7. If voltage is not as described, disconnect the brewer from the power source and replace the timer. 7. With a voltmeter, check the voltage across termi- nals TL1 and TL4 when the "TEA/OFF/COFFE

Resumen del contenido incluido en la página 19

SERVICE (cont.) DIGITAL BREW TIMER (HOT COFFEE - Late ume setting will remain in memory.) Models)(cont.) View the level of the liquid being dispensed. When the desired level is reached, turn the TEA/OFF/COF- 1. Modifying brew volumes. To modify a brew vol- FEE switch to “OFF”. ume, first check that the SET/LOCK switch is in the NOTE: Several ounces of water will continue to sy- “SET” position on the circuit board. phon from the tank after turning the switch “OFF”. The brewer remembers this volum

Resumen del contenido incluido en la página 20

SERVICE (cont.) BREW TIMER (ICED TEA - Early Models) 5. With a voltmeter, check the voltage across termi- nals TL1 and TL4 when the TEA/OFF/COFFEE switch is in the “TEA” position and the START switch is momentarily placed in the lower posi- tion. Connect the brewer to the power source. The indication must be 120 volts ac for two wire 120 volt models and three wire 120/208 volt models for approximately twenty seconds and then return to its previous indication. 6. Disconnect the brewer from the po


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