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Bunn CWTF - page 1
C, CT , CWTF Series Including DV , APS/TC/TS, Single CW & T wins Supercedes Operating Manuals: 10690.####; 10737.####; 10841.0000; 28182.0000; 36102.0000 INST ALLA TION & OPERA TING GUIDE BUNN-O-MA TIC CORPORA TION POST OFFICE BOX 3227 SPRINGFIELD, ILLINOIS 62708-3227 PHONE: (217) 529-6601 F AX: (217) 529-6644 T o ensure you have the latest ...
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Bunn CWTF - page 2
Page 2 41721 051910 BUNN-O-MA TIC COMMERCIAL PRODUCT W ARRANTY Bunn-O-Matic Corp. (“BUNN”) warrants equipment manufactured by it as follows: 1) All equipment other than as specified below: 2 years parts and 1 year labor . 2) Electronic circuit and/or control boards: parts and labor for 3 years. 3) Compressors on refrigeration equipment: 5 year ...
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Bunn CWTF - page 3
Page 3 41721 111308 USER NOTICES ........................................................................................................................................... 4 ELECTRICAL REQUIREMENTS ......................................................................................................................5 PLUMBING REQUIREMENTS (CURRENT ...
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Bunn CWTF - page 4
Page 4 USER NOTICES Carefully read and follow all notices in this manual and on the equipment. All labels on the equipment should be kept in good condition. Replace any unreadable or damaged labels. #12364.0000 W ARNING ! Fill water tank before turning - on - thermostat or connecting appliance to power source. Use only on a properl y protected circ ...
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Bunn CWTF - page 5
Page 5 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 and color coding of each conductor at the electrical source. FIG. 5-1 Dual Volt Switch Position Model 35 Note: This electrical service con ...
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Bunn CWTF - page 6
Page 6 PLUMBING REQUIREMENTS-CURRENT SINGLES 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 pre- vention to comply with federal, state and local codes. For models installed outside the U.S.A. ...
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Bunn CWTF - page 7
Page 7 1. Remove six screws securing rear utility cover (if equipped). FIG 7-1 2. Remove cap from the flared fitting on the bottom of the center tube assembly . 3. Flush the water line and securely attach it to the flare fitting on the center tube assembly . FIG 7-2 4. T urn on the water supply . 5. Re-install rear utility cover . FIG 7-3 6. On ...
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Bunn CWTF - page 8
Page 8 PLUMBING REQUIREMENTS-EARL Y SINGLES MODEL C: This model is completely portable and requires no attached plumbing. MODELS CT , CTF , CWT , CWT A, CWTB, CWTF , CWTF A & CWTFB, SINGLE CW & SINGLE CWF These brewers must be connected to a cold water system with operating pressure between 20 and 90 psi (138 to 620kPa) from a 1 ⁄ 2 " ...
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Bunn CWTF - page 9
Page 9 P1241 TWINS TWINS These brewers 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 ...
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Bunn CWTF - page 10
Page 10 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. Insert an empty funnel into the funnel rails. 2. Place an empty dispenser under the funnel. 3. Place the heater switch at the rear of the brewer in the “OFF” lower position and con ...
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Bunn CWTF - page 11
Page 11 SET/LOCK SWITCH THERMOST A T KNOB FIG 11-1 LOCK SET -1000 213.8 101.0 200 93.3 -500 212.9 100.5 200 93.3 0 212.0 100.0 200 93.3 500 211.1 99.5 200 93.3 1000 210.2 99.0 200 93.3 1500 209.3 98.5 200 93.3 2000 208.4 98.0 200 93.3 2500 207.4 97.4 200 93.3 3000 206.5 96.9 199 92.8 3500 205.6 96.4 198 92.2 4000 204.7 95.9 197 91.7 4500 203.8 95.4 ...
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Bunn CWTF - page 12
Page 12 ON/LOWER SWITCH Placing the "ON/LOWER" switch in the "OFF" (lower) position stops brewing. Stopping a brew cycle after it has been started, will not stop the flow of water into the funnel until the tank siphons down to its proper level. Placing the switch in the "ON" (upper) position enables the brew cir cuit ...
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Bunn CWTF - page 13
Page 13 MASTER ON/OFF SWITCH(S) The master ON/OFF switch disables power the entire brewer (including tank heaters). NOTE – TWINS with 2 power cords will have 2 power switches, (one left, one right). T ANK HEA TER ON/OFF SWITCH(S) The tank heater ON/OFF switch disables power to the tank heater circuits only . Power to brew timer and warm- er circu ...
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Bunn CWTF - page 14
Page 14 COFFEE BREWING 1. Insert a BUNN ® filter into the funnel. 2. Pour the fresh coffee into the filter and level the bed of grounds by gently shaking. 3. Slide the funnel into the funnel rails. 4. Place an empty dispenser beneath the funnel. 5. Place the "ON/OFF" switch in the "ON" upper position. Momentarily press and re ...
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Bunn CWTF - page 15
Page 15 Clean Sprayhead Holes FIG 15-3 1. The use of a damp cloth rinsed in any mild, non-abrasive, liquid detergent is recommended for cleaning all surfaces on Bunn-O-Matic equipment. Use care when cleaning around the heater switch with a cloth, so as not to accidentally turn off the tank heater! 2. Clean out the sprayhead holes. A properly cleane ...
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Bunn CWTF - page 16
Page 16 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. • Inspection, testing, and repair of electrical equipment should be per formed onl ...
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Bunn CWTF - page 17
Page 17 TROUBLESHOOTING (cont.) PROBLEM Spitting or excessive steaming Dripping from sprayhead Brew cycle starts when ON/ LOWER Switch is turned on. Weak beverage Dry coffee grounds remain in the funnel PROBABLE CAUSE 1. Lime Build-up 1. Syphon System Auxiliary brew start switch on TWINS inadvertently activated. 1. Filter T ype 2. Coffee Grind 3. S ...
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