C, ct, cwtf series including dv, aps/tc/ts, single cw & twins supercedes operating manuals: 10690.####; 10737.####; 10841.0000; 28182.0000; 36102.0000 installation & operating guide bunn-o-matic corporation post office box 3227 springfield, illinois 62708-3227 phone: (217) 529-6601 fax: (217) 529-66...
Page 2 41721 051910 bunn-o-matic commercial product warranty 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) comp...
Page 3 41721 111308 user notices ........................................................................................................................................... 4 electrical requirements ........................................................................................................
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 warning ! Fill water tank before turning - on - thermostat or connecting appliance to pow...
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 posit...
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 loc...
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. Turn on the water supply. 5. Re-...
Page 8 plumbing requirements-early singles model c: this model is completely portable and requires no attached plumbing. Models ct, ctf, cwt, cwta, cwtb, cwtf, cwtfa & cwtfb, single cw & single cwf these brewers must be connected to a cold water system with operating pressure between 20 and 90 psi (...
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 g...
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 th...
Page 11 set/lock switch thermostat 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 1...
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...
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). Tank heater on/off switch(s) the tank heater on/off switch disables power to the tank heater circuits...
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 positio...
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...
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 technical service department. • inspection, testing, and repair of...
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 inadvertent...
