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manual abstract
If continuity is present as described, reconnect blue wires to terminal 5 on the right relay, the black wires to terminal 5 on the left relay and the red wire to left and right terminal 7, the relays are operating properly. If continuity is not present as described, replace the relay(s). Electronically Controlled Brewers NOTE: Brewer must be at operating temperature to perform test procedures or brew-lock must be bypassed. To bypass brew-lock disconnect white/ orange and brown/black for right timer or orange and red/black for left timer from brew-lock of ECA and connect the harness leads together. P982 . MINUTES BUNN-O-MATIC P/N2620- 120VAC . MINUTES BUNN-O-MATIC P/N 2620-120VAC 2 2 2 1.51.5 1 1 1 .5.5 2.52.5 MINUTESMINUTES MINUTESMINUTES MINUTESMINUTES P/N24486-0000 120VACP/N 24486-120 VAC BUNN-O-MATICBUNN-MATIC 3 3 3 4 4 5 5 6 6 7 8 2 2 2 1.51.5 1 1 1 .5.5 2.52.5 MINUTESMINUTES MINUTESMINUTES MINUTESMINUTES P/N24486-0000 120VACP/N 24486-120 VAC BUNN-O-MATICBUNN-MATIC 3 3 3 4 4 5 5 6 6 7 8 START ON / WARMER SELECTOR READY READY ON / WARMER START 1 1.2 gal 1 gal 1.2 gal SELECTOR 11.2gal 1 gal 1.2gal BUNN 90 psig max operating pressure Strainer/Flow Control # 22300.0750 (Repl. Flow Washer #20526.0750) (Repl. Screen #23721.0000) .500 gpm FLOW 27124 050800 SERVICE (cont.) Relay (Brewers W/Recovery Booster) (cont.) 1. Disconnect brewer from the power source and place both selector switches in the 1/2 gallon position. 2. Locate the gray wire on terminal 7 and the white/ green wire on terminal B of the relay. 3. Check the voltage across the gray and white/green wire with left and right "ON/OFF" switch in the "ON" position. Connect the brewer to the power source and press the left and right start switch. The indication must be: a.) 120 volts ac for three wire 120/208 volt models and three wire 120/240 volt models. b.) 200 to 240 volts ac for two wire 200 or 240 volt models. 4. Disconnect brewer from the power source. If voltage is present as described, proceed to #5. If voltage is not present as described, refer to the wiring diagrams and the check brewer wiring harness. 5. Locate the white/red wire on the relay terminal 5 and the gray wire relay terminal 7. 6. Check for continuity across the relay terminals 5 and 7 by manually closing relay contact. Continuity must not be present when contact is released. If continuity is present as described, reconnect the brew-lock if necessary, the relay is operating properly. If continuity is not present as described, replace the relay. Removal and Replacement: 1. Remove all wires from relay terminals. 2. Remove the #8-32 slotted screw holding relay mounting bracket to the hood. 3. Remove the relay from the mounting bracket. 4. Securely install the new relay to the mounting bracket. 5. Install the relay mounting to the hood. 6. Refer to the illustration below when reconnecting the wires. Page 32 RED BLK to BLK Lead on Contactor Coil BLK to BLK Lead on Thermostat WHI/RED to Left Dispense Valve WHI/BRN to Left Dispense Valve WHI/GRN to Right Dispense Valve BLU to BLU Lead from Thermostat BLU to BLU Lead from Liquid Level Board WHI/VIO to Right Dispense Valve RIGHTLEFT GRY to BLK Lead from Contactor Coil WHI/VIO to Right Dispense Valve WHI/RED to Left Dispense Valve WHI/GRN to Right Dispense Valve ELECTRONIC CONTROL W/RECOVERY BOOSTER MECHANICAL THERMOSTAT W/RECOVERY BOOSTER B A A 7 7 5 5 B B 5 7 A P797 27124 050800 Page 33 SERVICE (cont.) SOLENOID VALVE (Inlet) Location: The solenoid valve is located inside the lower right front of the brewer. Test Procedure: 1. Disconnect the brewer from the power source and draw 1/4 gallon of water from faucet. 2. Remove both wires from the solenoid valve coil terminals. 3. Check the voltage across the removed wires: a.) Violet and white on 120/208 volt and 120/240 volt three wire electro/mechanical models. b.) Violet and red on 200 volt and 240 volt electro/ mechanical models. c.) White/Blue and White on 120/208 volt and 120/240 volt electronic models. d.) White/Blue and Red on 200 volt and 240 volt electronic models. with a voltmeter. Connect the brewer to the power source. The indication must be: a.) 120 volts ac for 120/208V and 120/240V three wire models. b.) 200 to 240 volts ac for 200V or 240V two wire models. 4. Disconnect the brewer from the power source. If voltage is present as described, proceed to #5. If voltage is not present as described, refer to the wiring diagrams and check brewer wiring harness. 5. Check for continuity across the solenoid valve coil terminals. If continuity is present as described, reconnect the white and violet wires on the electro/mechanical controlled 120/208 and 120/240 volt brewers, white and white/blue on electronic controlled 120/208 and 120/ 240 volt brewers, red and violet on electro/mechanical controlled 200 or 240 volt brewers and red and white/ blue on electronic controlled 200 or 240 volt brewers. If continuity is not present as described, replace the solenoid valve. 6. Check the solenoid valve...