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®
BUNN
OL & RL
OPERATING & SERVICE MANUAL
BUNN-O-MATIC CORPORATION
POST OFFICE BOX 3227
SPRINGFIELD, ILLINOIS 62708-3227
PHONE: (217) 529-6601 FAX: (217) 529-6644
32430.0000B 7/00 © 1999 BUNN-O-MATIC CORPORATION
!
!
CAUTION
DISCARD DECANTER
IF:
. CRACKED
. SCRATCHED
. BOILED DRY
. U . S HE ED A T O E N D H W IG HH E N FL E A M M P E TY
FUNNEL CONTENTS . OR EXPOSED ELECTRIC
ARE HOT ELEMENTS
FAILURE TO COMPLY RISKS INJURY
O M O O O
N: BUNN-O-MA C COR ORA ON
! WARNING
HIGH HEAT
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CONTENTS Introduction ............................................................... 2 User Notices .............................................................. 3 Electrical Requirements ............................................. 4 Plumbing Requirements ............................................ 4 Initial Set-Up.............................................................. 5 Operating Controls..................................................... 6 Coffee Brewing .........................
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USER NOTICES Carefully read and follow all notices on the equipment and in this manual. They were written for your protection. All notices on the equipment should be kept in good condition. Replace any unreadable or damaged labels. 00658.0000 00831.0000 ! WARNING Fill water tank before turning -on thermostat or connecting appliance to power source. Use only on a properly protected circuit capable of the rated load. Electrically ground the chassis. Follow national/local electrical codes. Do not
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ELECTRICAL REQUIREMENTS CAUTION - Do not connect the brewer to the power source until specified in Initial Set-Up. L2 RED WHITE L2 RED RED 120V.A.C. NEUTRAL WHITE NEUTRAL 120V.A.C. 100V.A.C. 200 OR 240V.A.C. L1 BLACK 208 or 240V.A.C. L1 BLACK L1 BLACK NEUTRAL 120V.A.C. L1 BLACK MODELS OL15 & 20 require 2- MODELS OLA, RLA, OL35B & MODEL OL25B requires 2- MODELS OL35 & RL35 require wire, grounded service rated RL35B require 2-wire, wire, grounded service 3-wire, grounded service rated 120 volts ac
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COFFEE BREWING Start each brew cycle with an empty, clean, half-gallon decanter. 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 the On/Off brew station warmer switch in the upper position. 5. Momentarily press the start switch. 6. When brewing is completed, simply discard the grounds and filter. CLEANING 1. The use of a damp cloth rinsed in any mild, non-abrasiv
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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 personnel. • All electric components have 120 volt ac voltage on their terminals. Shorting of terminals or the application of external vol
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TROUBLESHOOTING (cont.) Problem Probable Cause Remedy Brew cycle will not start. (cont.) 4. On/Off Brew Station Warmer Refer to Service - On/Off Brew Sta- Switch tion Warmer Switch for testing pro- cedures. See page 15. Refer to Service - Start Switch for 5. Start Switch testing procedures. See page 17. Refer to Service - Relay for testing 6. Relay procedures. See page 21. 7. Solenoid Valve Refer to Service - Solenoid Valve for testing procedures. See page 20. Refer to Service - Solenoid Val
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TROUBLESHOOTING (cont.) Problem Probable Cause Remedy Spitting or unusual steaming from 1. Control Thermostat Refer to Service - Control Thermo- sprayhead. stat for testing procedures. See page 13. 2. Lime build-up Inspect the tank assembly for exces- sive lime deposits. Delime as re- CAUTION quired. Tank and tank components should be delimed regularly depending on local water conditions. Excessive mineral build-up on stainless steel surfaces can initiate corrosive reac- tions resulting in se
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TROUBLESHOOTING (cont.) Problem Probable Cause Remedy 1. Beverage left in decanter The brew cycle should be started Beverage overflows decanter. only with an empty decanter under the funnel. 1. Type of paper filters BUNN® paper filters should be used Weak beverage. for proper extraction. 2. Coffee A sufficient quantity of fine or drip grind coffee should be used for proper extraction. 3. Sprayhead B.O.M. sprayhead #01082.0000 should be used to properly wet the bed of ground coffee in the funnel.
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SERVICE (cont.) The indication must be as described in step 2. Voltage must not be indicated across these ter- Control Thermostat minals when the thermostat is turned "OFF" (fully counterclockwise). 5. Disconnect the brewer from the power source. If voltage is present as described, the control thermo- stat is operating properly. If voltage is not present as described, replace the con- trol thermostat. Removal and Replacement: 1. Remove the top cover or top warmer housing from the brewer to gain
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SERVICE (cont.) 4. Disconnect the brewer from the power source. Warmer Switch(es) RL: Left Rear, Left Front, Right Rear & Right Front If voltage is present as described, the switch is oper- ating properly. If voltage is not present as described, replace the switch. Removal and Replacement: 1. Remove the knob from the switch. 2. Loosen the 5/8" nut on the switch shaft and push the switch through the opening. 3. Remove the wires from the switch terminals. 4. Refer to FIG. 11 when reconnecting the
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SERVICE (cont.) c) 100 volts ac for two wire 100 volt models. 4. Disconnect the brewer from the power source. Indicator Lamp(s) If voltage is present, the indicator lamp is operating properly. If voltage is not present, replace the indicator lamp. Removal and Replacement: 1. Compress the clips inside the housing and gen- tly push the indicator lamp through the opening. 2. Remove the wires from the indicator lamp termi- nals. 3. Refer to FIG. 17 when reconnecting the wires. 4. Push the new indica
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