Manuel d'utilisation / d'entretien du produit TWF du fabricant Bunn
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BUNN-O-MA TIC CORPORA TION T W TW F 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Corporation OPER A T ING & SE R V I CE MAN U AL B U N N ® DISCONTINUED VERSION The information in this manual is no longer current.
Page 2 CONTENTS Introduction ............................................................. 2 Warranty .................................................................. 2 User Notices ............................................................ 3 Electrical Requirements .
Page 3 #00831.0000 #00656.0000 #03408.0000 #03409.0000 #02822.0000 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.
Page 4 ELECTRICAL REQUIREMENTS CAUTION - The brewer must be disconnected from the power sour ce until specified in Initial Set-Up. 120V model brewers require 2-wire, grounded service rated 120 volt ac, 15 amp, single phase, 60 Hz. 120/208V model brewers require 3-wire, grounded ser vice rated 120/ 208 volt, 20 amp, single phase, 60 Hz.
Page 5 I NITIAL 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 counter clockwise to the “OFF” position and replace the top lid.
Page 6 ADJUSTING BREW VOLUMES CAUTION - Disconnect the power sour ce 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.
Page 7 OPERA TING 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.
Page 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 T echnical Ser vice Department.
Page 9 TROUBLESHOOTING (cont.) PROBLEM PROBABLE CAUSE REMEDY Brew cycle(s) will not start (cont.) Brew water is not hot Dilution (Iced T ea) cycle will not start 6. Brew Timer A) Iced T ea B) Hot Coffee 7. Brew Solenoid Valve A) Iced T ea B) Hot Coffee 8.
Page 10 TROUBLESHOOTING (cont.) PROBLEM PROBABLE CAUSE REMEDY Dilution (Iced T ea) cycle will not start (cont.) Inconsistent beverage level in dis- penser (Hot Coffee) Consistently high or low beverage level in the dispenser 2. Start Switch 3. Brew T imer (Iced T ea) 4.
Page 11 TROUBLESHOOTING (cont.) PROBLEM Consistently high or low beverage level in the dispenser . (cont.) Spitting or excessive steaming Drip-out time too long Dripping from sprayhead PROBABLE CAUSE 2.
Page 12 TROUBLESHOOTING (cont.) Water flows into tank continuously (TEA/OFF/COFFEE Switch in the "TEA or "COFFEE" position) Water flows into tank continuously (TEA/OFF/COFFEE Switch in the "OFF" position) Beverage overflows dispenser 1.
Page 13 BUNN ® paper filters must be used for proper extraction. A sufficient quantity of fresh tea leaves or coffee should be used for proper extraction. A six-hole (or seven-hole for Mod- els with 90 oz concentrate option) stainless steel sprayhead must be used for proper extraction.
Page 14 SERVICE This section provides procedures for testing and replacing various major components used in this brewer should service become necessary .
Page 15 Location: Viewing the brewer from the, rear the hot coffee brew solenoid valve is mounted on the left side of the mounting bracket. Test Procedures: 1. Disconnect the brewer from the power sour ce. 2. Disconnect the white/red and white/green wires from the hot coffee solenoid valve.
Page 16 P2198.50 FIG. 4 ICED TEA BREW SOLENOID V AL VE Location: Viewing the brewer from the rear, the iced tea brew solenoid valve is mounted in the center of the mount- ing bracket. Test Procedures: 1. Disconnect the brewer from the power sour ce. 2.
Page 17 Location: The hot coffee brew timer is located in the hood on the left side. It consists of a dial plate and circuit board. T est Procedure: 1. Disconnect the brewer from the power sour ce. 2. Remove the wires from terminals TL3, TL4, & TL5 of the timer and rotate the dial fully counterclock- wise.
Page 18 Location: The timer is located inside the hood on the left side. Test Procedure. NOTE: Do not remove or install wires while timer board is installed. Pressure applied to one side may cause damage to the board. 1. Disconnect the brewer from the power source and remove the front access panel.
Page 19 TL1 - WHI/RED to Hot Coffee Solenoid and WHI/RED to TEA/OFF/COFFEE Switch TL2 - WHI to Power Cord (120V Models) or WHI to T erminal Block (120/208V Models) TL3 - WHI/ORN to ST ART Switch TL4 - WHI/GRN to Hot Coffee Solenoid TL5 - WHI/YEL to ST ART Switch FIG.
Page 20 Location: The iced tea brew timer is located in the hood on the right side. It consists of the dial plate and circuit board. T est Procedure: 1. Disconnect the brewer from the power sour ce. 2. Remove the wires from terminals TL3, TL4, & TL5 of the iced tea timer and rotate the dial fully coun- ter clockwise.
Page 21 Location: The timer is located inside the hood, on the right side. Test Procedure. NOTE: Do not remove or install wires while timer board is installed. Pressure applied to one side may cause damage to the board. 1. Disconnect the brewer from the power source and remove the front access panel.
Page 22 TL1 - WHI/VIO to Iced T ea Solenoid and WHI/VIO to TEA/OFF/COFEE Switch TL2 - WHI to Power Cord (120V Models) or WHI to T erminal Block (120/208V Models) TL3 - ORN to ST ART Switch TL4 - WHI/BLU to Iced T ea Solenoid TL5 - YEL to ST ART Switch FIG.
Page 23 B U N N BUNN O F F OFF HI HI Location: The control thermostat is located inside hood on the right side to the left of the iced tea brew timer. Test Procedures: 1.
Page 24 SERVICE (cont.) DILUTION SOLENOID V AL VE FIG. 16 DILUTION SOLENOID V AL VE P2198.50 Location: Viewing the brewer from the rear the dilution so- lenoid is mounted on the right side of the solenoid mounting bracket which is secured to the trunk base.
Page 25 SERVICE (cont.) LIMIT THERMOST A T FIG. 18 LIMIT THERMOST A T P2198.50 Location: The limit thermostat is located inside the hood on the tank lid. T est Procedure: 1. Disconnect the brewer from the power source and remove the black wire from the limit thermostat.
Page 26 FIG.21 TEA/OFF/COFFEE SWITCH TERMINALS P1367 SERVICE (cont.) TEA/OFF/COFFEE SWITCH FIG. 20 TEA/OFF/COFFEE SWITCH P1959.60 Location: The TEA/OFF/COFFEE switch is located in the front of the hood, above and to the left of the brew funnel. T est Procedure: 1.
Page 27 SERVICE (cont.) ST ART SWITCH FIG. 22 ST ART SWITCH P1959.60 Location: The start switch is located in the front of the hood, above and to the right of the brew funnel. T est Procedure: 1. Disconnect the brewer from the power sour ce. 2. Remove the wires from all four terminals.
Page 28 FIG. 24 T ANK HEA TER Location: The tank heater is located inside the tank and se- cured to the tank lid. T est Procedures: 1. Disconnect the brewer from the power supply . 2. With a voltmeter , check the voltage acros s the black and white wires on 120 volt models or the black and red wires for 120/208 volt models.
Page 29 SERVICE (cont.) THERMAL FUSE (Models W/Faucet Only) FIG. 26 THERMAL FUSE P2198.50 Location: The thermal fuse is located inside the hood con- nected to the right tank heater terminal. T est Procedures: 1. Disconnect the brewer from the power sour ce.
Page 30 SERVICE (cont.) HALF BA TCH SWITCH (Optional) FIG. 28 HALF BA TCH SWITCH P1959.60 Location: The HALF BA TCH switch is located in the front of the hood, above and to the far left of the brew funnel. T est Procedure: 1. Disconnect the brewer from the power sour ce.
Page 31 10510 081599.
Page 32 10510 112000 10502.0003A 9/00 ©2000 BUNN-O-MA TIC CORPORA TION READY INDICATOR BLK BLU.
Un point important après l'achat de l'appareil (ou même avant l'achat) est de lire le manuel d'utilisation. Nous devons le faire pour quelques raisons simples:
Si vous n'avez pas encore acheté Bunn TWF c'est un bon moment pour vous familiariser avec les données de base sur le produit. Consulter d'abord les pages initiales du manuel d'utilisation, que vous trouverez ci-dessus. Vous devriez y trouver les données techniques les plus importants du Bunn TWF - de cette manière, vous pouvez vérifier si l'équipement répond à vos besoins. Explorant les pages suivantes du manuel d'utilisation Bunn TWF, vous apprendrez toutes les caractéristiques du produit et des informations sur son fonctionnement. Les informations sur le Bunn TWF va certainement vous aider à prendre une décision concernant l'achat.
Dans une situation où vous avez déjà le Bunn TWF, mais vous avez pas encore lu le manuel d'utilisation, vous devez le faire pour les raisons décrites ci-dessus,. Vous saurez alors si vous avez correctement utilisé les fonctions disponibles, et si vous avez commis des erreurs qui peuvent réduire la durée de vie du Bunn TWF.
Cependant, l'un des rôles les plus importants pour l'utilisateur joués par les manuels d'utilisateur est d'aider à résoudre les problèmes concernant le Bunn TWF. Presque toujours, vous y trouverez Troubleshooting, soit les pannes et les défaillances les plus fréquentes de l'apparei Bunn TWF ainsi que les instructions sur la façon de les résoudre. Même si vous ne parvenez pas à résoudre le problème, le manuel d‘utilisation va vous montrer le chemin d'une nouvelle procédure – le contact avec le centre de service à la clientèle ou le service le plus proche.
