Bunn OT Operating & Service Manual

DESCRIPTION, OPERATION AND MAINTENANCE Supersedure Notice: This manual supersedes S6161-CF-FSE-010, Revision 1, dated 15 November 2000 and all changes thereto. “Distribution Statement “A”: Approved for public release; distribution is unlimited.” DEPARTMENT OF THE NAVY NAVAL SEA SYSTEMS COMMAND 15 MAY 2009

IDENTIFYING TECHNICAL PUBLICATION SHEET FOR COMMERCIAL MANUAL 1. PURPOSE: This technical publication sheet is issued for the purpose of identifying and authorizing the following commercial manual for Navy use. Manufacturer: Bunn-O-Matic Corporation Post Office Box 3227 Springfield, IL 62708-3227 Cage 25628 Purchase Order or Contract No.: N62793-03-G-0001 Requisition No.: N/A Equipment: Model RTF-35 National Stock Number: 0910-LP-108-9799 Title: Coffee Brewer, Models OT and RT; Description, Operation and Maintenance Additional Identification: N/A Date: N/A 2. ADDITIONAL COPIES: Additional copies are available from the Naval Logistics Library (NLL). 3. FILE LOCATION: The above-described commercial manual is filed in . 4. AUTHORITY NOTICE AND DISTRIBUTION STATEMENT: Published by direction of Commander, Naval Sea Systems Command. Distribution Statement A: Approved for public release; distribution is unlimited. FOR UNCLASSIFIED MANUALS NOTICE: Reproduction for non-military use of the information or illustration in this publication is not permitted. The policy for military use reproduction is established in OPNAVINST 5510.1B. This material may be reproduced by or for the U.S. Government pursuant to the rights acquired under Article 42 of Newport News Shipbuilding Purchase Order DoD Contracts Appendix A dated December 2007.

DESCRIPTION, OPERATION AND MAINTENANCE Part Title I Operating & Service Manual with Illustrated Parts Catalog for Models OT & RT, Serial Numbers before RT00005364 with Analog Timer II Operating & Service Manual with Illustrated Parts Catalog for Models OT & RT, Serial Numbers RT00005364 and up with Digital Timer

OT & RT, Serial Numbers before RT00005364 with Analog Timer

OPERATING & SERVICE MANUAL BUNN-0-MATIC CORPORATION POSTOFFlCEBOX3227 SPRINGFIELD, ILLINOIS 62708-3227 PHONE:(217)529-6601 FAX:(217)529-6644 10021.0000F 10198 0 1989 BUNN-0-MATICCORPORATION Part I

3 Electrical Requirements ............................................. 4 Plumbing Requirements ............................................ 4 Initial Set-Up .............................................................. 5 Operating Controls ..................................................... 6 Coffee Brewing .......................................................... 7 Cleaning ..................................................................... 7 Troubleshooting ......................................................... 8 Service ....................................................................... 12 Wiring Diagrams ........................................................ 26 INTRODUCTION This equipment will brew a half-gallon batch of coffee into an awaiting decanter at the press of a button. The OT has two and the RT has five warmers to keep the beverage at the right temperature, on the RT one of which is capable of heating water to boiling. The brewer is only for indoor use on a sturdy counter or shelf. BUNN-O-MATIC COMMERCIAL PRODUCT WARRANTY Bunn-0-Matic Corp. (“Bunn”) warrants the equipment manufactured by it to be commercially free from defects in material and workmanship existing at the time of manufacture and appearing within one year from the date of installation. This warranty does not apply to any equipment, component or part that was not manufac- tured by Bunn or that, in Bunn’s judgement, has been affected by misuse, neglect, alteration, improper installa- tion or operation, improper maintenance or repair, damage or casualty. THE FOREGOING WARRANTY IS EXCLUSIVE AND IS IN LIEU OF ANY OTHER WARRANTY, WRITTEN OR ORAL, EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, ANY IMPLIED WARRANTY OF EITHER MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. The agents, dealers or employees of Bunn are not authorized to make modifications to this warranty or to make additional warranties that are binding on Bunn. Accordingly, statements by such individuals, whether oral or written, do not constitute warranties and should not be relied upon. The Buyer shall give Bunn prompt notice of any claim to be made under this warranty by telephone at (217) 529-6601 or by writing to Post Office Box 3227, Springfield, Illinois, 62708-3227. If requested by Bunn, the Buyer shall ship the defective equipment prepaid to an authorized Bunn service location. If Bunn determines, in its sole discretion, that the equipment does not conform to the warranty, Bunn shall repair the equipment with no charge for parts during the one year warranty period and no charge for labor by a Bunn Authorized Service Representative during the one year warranty period. If Bunn determines that repair is not feasible, Bunn shall, at its sole option, replace the equipment or refund the purchase price for the equipment. THE BUYER'SREMEDYAGAlNSTBUNNFORTHEBREACHOFANYOBLlGATlONARlSlNGOUTOFTH OFTHlSEQUIPMENT,WHETHERDERlVEDFROMWARRANTY OR OTHERWISE,SHALLBELIMITED,ASSPECI- FIED HEREIN,TOREPAlROR,ATBUNN'SSOLEOPTION,REPLACEMENTORREFUND. Bunnshallnotbeliable for any other damage or loss, including, but not limited to, lost profits, lost sales, loss of use of equipment, claims of Buyer’s customers, cost of capital, cost of down time, cost of substitute equipment, facilities or ser- vices, or any other special, incidental or consequential damages. Page 2 Part I

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 .OOOO + 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 use near combustibles. FAILURE TO COMPLY RISKS EQUIPMENT DAMAGE, FIRE, OR SHOCK HAZARD READ THE ENTIRE OPERATING MANUAL BEFORE BUYING OR USING THIS PRODUCT THIS APPLIANCE IS HEATED WHENEVER CONNECTED TO A POWER SOURCE 00831.0000F 3198 Q 1988 BUNN-O-MATIC CORPORATION This equipment is to be installed to comply with the Basic Plumbing Code of the Building Officials and Code Administrators International, Inc. (BOCA) and the Food Service Sanitation Manual of the Food and Drug Administration (FDA). 00656.0000 HIGH HEAT WARMER DO NOT BOIL DECANTER DRY KEEP COMBUSTIBLES AWAY FAILURE TO COMPLY RISKS GLASS FAILURE/HOT LIQUID BURNS AND FIRE HAZARD 00688.0000 Page 3 Part I

CAUTION - Do not connect the brewer to the power source until specified in Initial Set-Up. 240V.A.C. MODELS OT15 & 20 require 2- wire, grounded service rated MODELS OT35 & RT35 require 3-wire, grounded service rated 120 volts ac, 15 or 20 amp re- 120/208 or 120/240 volts ac, 20 spectively, single phase, 60 Hz. Model 15 has an attached amp, single phase, 60 Hz. cordset. Electrical Hook-Up Model OT15 has an attached cordset. Models OT20, OT35, & RT35, proceed as follows: CAUTION - Improper electrical installation will dam- age 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. 3. Remove the front panel beneath the sprayhead and rotate the control thermostat knob fully counterclockwise to the “OFF” position and re- place the panel,., 4. Remove the rear panel, feed the cord through the strain relief, and connect it to the terminal block. 5. Connect the brewer to the’power source and verify the voltage at the terminal block before 6. proceeding. Replace the rear panel. If plumbing is to be hooked-up later be sure the brewer is disconnected from the power source. If Plumbing has been hooked-up, the brewer is ready for Initial Set-Up. PLUMBING REQUIREMENTS This brewer must be connected to a cold water system with operating pressure between 20 and 90 psi from a l/2” or larger supply line. A shut-off valve should be installed ‘in the line before the brewer. ln- stall a regulator in the line when pressure is greater than 90 psi to reduce it to 50 psi. The water inlet fitting is I /4” flare. MODELS OTA, BTA & RT35B require 2-wire, grounded ser- vice rated 240 volts ac or 200 volts ac, 20 amp single phase, 50 Hz. MODEL RT25B requires 2- wire, grounded service rated 100 volts ac, 20 amp single phase, 50 Hz. NOTE - Bunn-0-Matic recommends l/4” copper tub- ing for installations of less than 25 feet and 3/8” for more than 25 feet from the l/2” water supply line. A tight coil of copper tubing in the water line will facili- tate moving the brewer to clean the counter top. Bunn- 0-Matic does not recommend the use of a saddle valve to install the brewer. The size and shape of the hole made in the supply line by this type of device may restrict water flow. This equipment must be installed to comply with the Basic Plumbing Code of the Build- ing Officials and Code Administrators Inter- national, Inc. (BOCA) and the Food Service Sanitation Manual of the Food and Drug Ad- ministration (FDA). Page 4

3‘ Models OT20,OT35, & RT35, proceed as follows: 1. Remove the rear I! anel and bottom P an. brewer and attac Run the long piece of tubing from the strainer (supplied) under the 2. it to the water in et fitting on the solenoid. Reinstall the bottom pan and rear panel. 3. Flush the water line and securely attach it to the l/4” flare fitting on the strainer. Turn on the water supply. INITIAL SETUP CAUTION - The brewer must be disconnected from the power source throughout the initial set-up, except when specified in the instructions. 1. Remove the front anel. 2. Rotate the contra P thermostat knob fully coun- ter;zckwise to the “OFF” position and replace the 3. 4. frnser-t an empty funnel into the funnel rails. Place a decanter containing a small amount of water on the warmer beneath the funnel. 5. Connect the brewer to the power source, place the On/Off brew station warmer switch the upper k osition, and momentarily press the start switch. ater will begin flowing Into the tank. When water stops flowing into the tank, initiate a sec- ond and a third, brew cycle. During this third brew cycle the tank will fill to its capacity and the ex- cess will flow from the sprayhead, out of the fun- nel, and into the decanter. NOTE - The On/Off brew station warmer switch must be in the upper position to initiate and complete a brew cycle. 6. Place the On/Off brew station warmer switch in 7. the lower position. 8. Disconnect the brewer from the power source. Remove the front panel. P1687 9. Rotate the control thermostat knob full wise to the “ON” position and replace t i clock- e front IO. panel. Connect the brewer to the power source and wait approximately twenty minutes for the water in the tank to heat to the ro er temperature. Some water will drip from t RP e unnel durin this time; this is due to expansion and shoul ? not occur thereafter. 11. Place an emp 1 decanter under the funnel. 12. Place the On/ ff brew station warmer switch in the upper position and momentarily press the start switch. Empty the decanter after water has 13. stopped flowing from the funnel. Allow the water in the tank to reheat to the proper 14. temperature. Place an empty decanter on the warmer and press the start switch. Check the water volume in the decanter after water has stopped flowing from the funnel. It should be 64 ounces. 15. If not, disconnect the brewer from the power source and remove the front panel. 16. Adjust the brew timer dial as required. Replace the front panel, connect the brewer to the power source, start, and measure another brew cycle. 17. Repeat steps 13-16 until 64 oz water volume is achieved. Page 5 PI690 Part I

A. On/Off Brew Station Warmer Switch Placing the switch in the upper position supplies power to the brew station warmer and enables brewing. Placing the switch in the lower position cuts power to the brew station warmer and stops brewing. Stopping a r 1.. brew cycle after it has been started will not stop the flow of water into the funnel until the tank syphons down to its proper level. NOTE - The On/Off brew station warmer switch must be in the upper position to initiate and complete a brew cycle. B. On/Off Brew Station Warmer Indicator Lamp Glows whenever the On/Off brew station warmer switch is in the upper position showing that the warmer is on and that the automatic brew cycle can be started. C. Start Switch Starts a brew cycle when the On/Off brew station warmer switch is in the upper position. MODEL OT A B C Pl837 MODEL RT ..’ I c FGABCHI P1688 Page 6 D. Upper Warmer Switch Placing the switch in the upper position supplies power to the upper warmer. Placing the switch in the lower position cuts power to the upper warmer. E. Upper Warmer Indicator Lamp Glows whenever the upper warmer switch is in the upper position showing that the warmer is on. F. Left Rear Warmer Rotary Switch ‘7 Rotating the knob to the-“ON” position supplies c ) L i power to the left rear warmer. Rotating the knob to the “OFF” position cuts power to the left rear warmer. G. Left Front Warmer Rotary Switch Rotating the knob to the “ON” position supplies power to the left front warmer. Rotatina the knob to the “OFF” position cuts power to the left front warmer. H. Right Front Warmer Rotary Switch Rotating the knob to the “ON” position supplies power to the right front warmer. Rotating the knob to the “OFF” position cuts power to the right front warmer. I. Right Rear Warmer Three Heat Rotary Switch Rotating the knob to the “LO”, “MED”, or “HIGH” positions supply power to the right rear warmer. Ro- tating the knob to the “OFF” position cuts power to the right rear warmer. The “HIGH” position of this switch makes the warmer capable of boiling water. Part I

decanter. 1. Insert a BUNNY 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-abrasive, liquid detergent is recommended for cleaning all surfaces on Bunn-0-Matic equipment. 2. Check and clean the sprayhead. The sprayhead holes must always remain open. 3. With the sprayhead removed, insert the deliming spring (provided) all the way into the sprayhead tube. When inserted properly, no more than two inches of spring should be visible. Saw back and forth five or six times. Then, repeat this step for the air vent tube. NOTE - In hard water areas, this may need to be done daily. It will help prevent liming problems takes less than a minute. in the brewer and Page 7 Part I

for the most likely problems encountered. If the problem remains after exhausting the troubleshooting steps, contact the Bunn-0-Matic Technical Service Department, 0 Inspection, testing, and repair of electrical equipment should be performed only by qualified service personnel. l All electric components have 120 volt ac voltage on their terminals, Shorting of terminals or the application of external voltages may result in equipment failure. 0 Intermittent operation of electronic equipment is unlikely. Component failure will normally be permanent. If an intermittent condition is encountered, the cause will likely be a switch contact or a loose connection at a terminal or crimp. 0 Solenoid removal requires interrupting the water supply to the valve. Damage may result if solenoids are energized for more than ten minutes without a supply of water. l The use of two wrenches is recommended whenever plumbing fittings are tightened or loosened. This will help to avoid twists and kinks in the tubing. 0 Make certain that all plumbing connections are sealed and electrical connections tight and isolated. 0 This brewer is heated at all times unless disconnected from the power source, Keep away from combustibles. WARNING 0 Exercise extreme caution when servicing electrical equipment. l Disconnect the brewer from the power source when servicing, except when electrical tests are specified. 0 Follow recommended service procedures 0 Replace all protective shields or safety notices Problem Probable Cause Remedy Equipment will not operate. 1. No power or incorrect voltage (A) Connect the brewer to the power source. ..’ Brew cycle will not start. 1. No water 2. Water Strainer (B) Check the terminal block for the proper voltages. (C) Check circuit breaker/fuse. Check plumbing and shut-off valves.’ (A) Direction of flow arrow must be pointing towards brewer. (B) Remove the strainer and check for obstructions. Clear or replace. 3. Flow Control (A) Direction of flow arrow must be pointing away from the solenoid. (B) Remove the control and check for obstructions. Clear or replace. Page 8 Part I

4. On/Off Brew Station Warmer Refer to Service - On/Off Brew Sta- Switch tion Warmer Switch for testing pro- cedures. See page 17. 5. Start Switch Refer to Service - Start Switch for testing procedures. See page 23. 6. Brew Timer Refer to Service - Brew Timer for testing procedures. See page 13. 7. Solenoid Valve Refer to Service - Solenoid Valve for testing procedures, See page 22. Water flows into tank continuously 1. Solenoid Valve Refer to Service - Solenoid Valve for (On/Off brew station warmer switch “OFF”). testing procedures. See page 22. Water flows into tank continuously 1. Brew Timer Refer to Service - Brew Timer for (On/Off brew station warmer switch testing procedures. See page 13. I - _ . _ I -. (C 1 "ON"). \ 1 ~. 5 ,.r I Water is not hot. I. Limit Thermostat Refer to Service - Limit Thermostat for testing procedures. See page 21. CAUTION I , Do not eliminate or bypass limit ther- I mostat. Use only B.O.M. replace- I I ..’ ment part #04680.0000 2. Control Thermostat Refer to Service - Control Thermo- stat for testing procedures. See page 14. Decanter warmer is not hot, 3. Tank Heater 1. Warmer Switches Refer to Service - Tank Heater for testing procedures. See page 24. (A) The Warmer Switch(es) must be in the “ON” position for the warmer to operate. 2. Decanter Warmers Page 9 (B) Refer to Service - Warmer Switch(es) for testing procedures. See pages 17,18, & 19. Refer to Service - Warmers for test- ing procedures. See pages 15 & 16. Part I

steaming from 1, Control Thermostat sprayhead. 2. Lime build-up CAUTION 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 serious leaks. Inconsistent beverage level in de- 1. Flow control canter. 2. improper water pressure 3. Syphon system Consistently high or low beverage level in decanter. 1. Brew Timer adjustment Dripping from sprayhead. 1. Syphon system 2. Solenoid Valve .Refer to Service - Control Thermo- stat for testing procedures. See page 14. Inspect the tank assembly for exces- sive lime deposits. Delime as re- quired. (A) Direction of flow arrow must be pointing away from the solenoid. (B) Remove the control and check for obstructions. Clear or replace. Check the operating water pressure to the brewer. It must be between 20 and 90 psi. Water should flow freely from the sprayhead for approximately twenty seconds after the brew solenoid has shut-off and then stop flowing abruptly. The brewer must be level from front-to-back to syphon prop- erly. Adjust the brew timer as required to achieve the recommended 64 oz for each brew cycle. Water should flow freely from the sprayhead for approximately twenty seconds after the brew solenoid has shut-off and then stop flowing abruptly. The brewer must be level from front-to-back to syphon prop- erly. Refer to Service - Solenoid Valve for testing procedures. See page 22. 0 Q Page10 Part I

I. Beverage left in decanter The brew cycle should be started only with an empty decanter under the funnel. Weak beverage. 1. Type of paper filters 2. Coffee 3. Sprayhead 4. Funnel loading 5. Water temperature Brewer is making unusual noises. 1. Solenoid Valve 2. Plumbing lines 3. Water supply Page 11 BUNNY paper filters should be used for proper extraction. A sufficient quantity of fine or drip grind coffee should be used for proper extraction. B.O.M. sprayhead #01082.0000 should be used to properly wet the bed of ground coffee in the funnel. The BUNN@ paper filter should be centered in the funnel and the bed of coffee leveled by gentle shaking. Place a funnel over an empty de- canter on the warmer beneath the sprayhead. Place the On/Off brew station warmer switch in the upper position, press the start switch, and check the water temperature imme- diately below the sprayhead with an accurate thermometer. The reading should not be less than 195O F. Ad- just the control thermostat slightly clockwise to increase the water tem- perature. The nut on top of the solenoid valve must be tight or it will vibrate dur- ing operation. Plumbing lines should not rest on the counter top. (A) The brewer must be connected to a cold water line, (B) Water pressure to the brewer must not be higher than 90 psi. In- stall a regulator if necessary to lower the working pressure to approxi- mately 50 psi. Part I

procedures for testing and replacing various major components used in this brewer should service become necessary. Refer to Troubleshooting for assistance in determining the cause of any problem. Component Access WARNING - Inspection, testing, and repair of electri- cal equipment should be performed only by qualified service personnel. The brewer should be disconnected from the power source when servicing, except when electrical tests are required and the test procedure specifically states to connect the brewer to the power source. Contents Brew Timer ........................................................... 13 Control Thermostat ............................................... 14 Warmer(s) WARNING - Disconnect the brewer from the power source before the removal of any panel or the replace- ment of any component. The brew timer, and control thermostat are lo- cated behind the front panel, FIG. 1 located beneath the brew funnel, attached with four #8-32 slotted-head screws. The base warmer(s), switch(es), indicator lamp, start switch, tank “keep warm” heater, terminal block, and solenoid valve, are located in the base. Access is gained by removing the rear panel, FIG. 1 attached with two f8-32 slotted-head screws The limit thermostat, and tank heater are located on the tank lid. Access is gained by removing the top lid, FIG. 1 attached with three #8-32 slotted head screws. On the model OT, the upper warmer, switch, and associated indicator lamp are located on this re- movable top lid. 01 Brew Station & Upper ............................................. 15 RT: Left Rear, Left Front, Brew Station, & Right Front.. . 15 RT: Right Rear Three Heat ............................................. 16 Warmer Switch(es) OT On/Off Brew Station & Upper .................................. 17 RT: On/Off Brew Station ................................................ 17 RT: Left Rear, Left Front, & Right Front Rotary.. ............ 18 RT: Right Rear Three Heat Rotary ................................. 19 Indicator Lamp(s) ................................................. 20 Limit Thermostat .................................................. 21 Solenoid Valve ...................................................... 22 Start Switch .......................................................... 23 Tank Heater ........................................................... 24 Thermal Cut-off ................................................... 25 Wiring Schematics ............................................... 26 1 PI 687 FIG. 1 ACCESS PANELS Pi668 Page 12 Part I

TIMER P1690 The brew timer is located behind the front panel to the right of the tank, FIG. 2. Test Procedure: 1. Disconnect the brewer from the power source and separate the polarized, three-pin connectors between the timer and brewer wiring harness and 2. rotate the brew timer dial fully counterclockwise. Check the voltage across sockets 2 & 3 (white or red and black wires) of the female connector with a voltmeter when the On/Off brew station warmer switch is in the upper position. Connect the brewer to the power source. The indication must: a) 120 volts ac for two wire 120 volt models. b) 200 or 240 volts ac for two wire 200 volt or 240 volt models and three wire 120/240 volt models. c) 100 volts ,ac for two wire 100 volt models. 3. Disconnect the brewer from the power source. If voltage is present as described, proceed to #4. If voltage is not present as described, refer to the Wir- ing Diagrams and check the brewer wiring harness. 4. Check the voltage across sockets 1 & 2 (blue and white or red wires) of the female connector with a voltmeter when the On/Off brew station warmer switch is in the upper position and the start switch is pressed to the lower position and held. Con- nect the brewer to the power source. The indica- tion must be as described in step 2, until the start switch is released. 5. Disconnect the brewer from the power source. , \.. LJ ! If voltage is present as described, reconnect the po- larized, three-pin connectors, and proceed to #6. If voltage is not present as described, refer to the Wir- ing Diagrams and check the brewer wiring harness. 6. Disconnect the in-line connectors on the black and white wires from the timer to the solenoid. 7. Check the voltage across the black and white wires with a voltmeter when the On/Off brew sta- tion warmer switch is in the upper position and the start switch is pressed to the lower position and released. Connect the brewer to the power source. The indication must be as described in step 2, for approximately 20 seconds and then return to its previous indication. 8. Disconnect the brewer from the power source. If voltage is present as described, the brew timer is operating properly. Reset the timer dial as required, to obtain the desired brew volume. If voltage is not present as described, replace the brew timer. Removal and Replacement: 1. Separate all connectors between the brewer wir- ing harness and the timer. 2. Remove the two 8-32 slotted-head screws hold- ing the timer to the bracket. 3. Install the new timer to the bracket. 4. Refer to FIG.3 when reconnecting the wires. 5. Readjust the timer dial as required. Pl BLU to Start Switch P2 WHI (see below) P3 BLK to ON/OFF Brew Station Warmer Switch WHI to Solenoid Coil BLK to Solenoid Coil FIG. 3 BREW TIMER WIRING P1691 MODEL OT WHI to Indicator Lamp RT WHI to Brew Station Warmer Page 13 Part I

THERMOSTAT - Location: The control thermostat is located behind the front panel, FIG. 4 to the left of the tank. To test the control thermostat, access will also be needed to the tank heater located in the top of the brewer. Test Proced u re: 1. Disconnect the brewer from the power source. 2. Check the voltage across the blue wire on the control thermostat and the white or red wire on the tank heater with a voltmeter. Connect the brewer to the power source. The indication must be: a) 120 volts ac for two wire 120 volt models, b) 200 or 240 volts ac for two wire 200 volt or 240 volt models and three wire 120/240 volt models. c) 100 volts ac for two wire 100 volt models. 3. Disconnect the brewer from the power source. If voltage is present as described, proceed to f4. If voltage is not present as described, refer to the Wir- ing Diagrams and check the brewer wiring harness. 4. Check the voltage across the black wire terminal of the control thermostat and the white or red wire on the tank heater with a voltmeter when the control thermostat is turned “ON” (fully clock- wise). Connect the brewer to the power source. The indication must be as described in step 2. Voltage must not be indicated across these ter- 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 both wires from the control thermostat terminals. 2. Remove the top lid from the brewer to gain ac- cess to the thermostat bulb. 3. Remove the thermostat bulb by firmly pulling- up on the capillary tube at the tank lid. This will disengage the grommet from the tank lid. 4. Remove the two #8-32 screws holding the con- trol thermostat to the bracket. 5. Fasten the new control thermostat to the brewer housing. 6. Route the capillary tube up though the brewer trunk. NOTE - Make sure that the capillary tube is away from any electrical termination and is not kinked. 7. Slide the grommet to the red mark on the capil- lary tube. 8. Insert the bulb through the hole in the tank lid and press the grommet firmly and evenly so that the groove in the grommet fits into the tank lid. 9. Carefully bend the capillary tube so that the tube and bulb inside the tank are in a vertical position. IO. Refer to FIG. 5 when reconnecting the wires. 11. Readjust the control thermostat dial as required. Limit Thermostat BLK to Tank Heater FIG. 5 THERMOSTAT WIRING - Page 14 Part I

SERVICE (cant .) Warmer(s) OT Brew Station & Upper RT: Left Rear, Left Front, Brew Station, & Right Front - FIG. 6 WARMERS P1667 FIG. 7 WARMERS P1666 .\ . 0 I Location: OT: One of the warmers is beneath the brew funnel and the other is on the top lid, FIG. 6. RT: These warmers include the one beneath the brew funnel, the ones on the ri ht and left of the brew station, and the one above an B to the left of the brew station as viewed from the front, FIG. 7. Test Procedure: 1. Once the switch has been tested and switch fail- 2. ure has been eliminated, proceed as follows. Disconnect the brewer from the power source and remove the #4-40 screws attaching the 3. warmer being tested. Lift the warmer assembly from the brewer and invert the warmer making the wire terminals ac- 4. cessible for testing. Check for continuity from the switch to the black wire at the warmer element. 5. Check for continuity from the wire terminal of the white or red wire to the splice or indicator lamp using the chart below. If continuity is present as described, proceed to #6. If continuity is not present as descrrbed, refer to the Wiring Diagrams and check the brewer wiring har- ness 6. Check for continuity across the two terminals on the warmer. If continuity is present as described, the warmer is operating properly. If continuity is not present as described, replace the warmer. Removal and Replacement: 1. Remove the #4-40 slotted-head screws holding the warmer to the brewer 2. 3. Lift the warmer assembly from the brewer. Disconnect both wires from the warmer. 4. 5. Refer to FIG. 8 when reconnecting the wires. Place the new warmer into the brewer and se- curely attach it using the #4-40 screws. WHI or RED (see below) BLK to Warmer Switch FIG. 8 WARMER WIRING Pi692 MODEL OT Upper WHI OR RED to Indicator Lamp OT Brew Station WHl OR RED to Indicator Lamp to Terminal Block RT Left Rear WHI OR RED to Terminal Block to Brew Station Warmer RT Left Front WHI OR RED to Indicator Lamp RT Brew Station WHI OR RED to Timer P2 to Left Rear Warmer RT Right Front WHI OR RED to Right Rear Warmer Switch If continuity is present as described, proceed to #5. Page 15 Part I

- FIG. 9 THREE HEAT WARMER Location: -_ . Pi666 The three heat warmer is above and to the right of the brew station as viewed from the front, FIG. 9. 1. 2. 3. 4. Test Procedure: Once the switch has been tested and switch faii- ure has been eliminated, proceed as follows. Disconnect the brewer from the power source and remove the #4-40 screws attaching the warmer being tested. Lift the warmer assembly from the brewer and invert the warm&- making the wire terminals ac- cessible for testing. Check for continuity of the red wire, the white wire, then the brown wire from the switch to the warmer element. If continuity is present as described, proceed to f5. If continuity is not present as described, refer to the Wiring Diagrams and check the brewer wiring har- ness. 5. Check for continuity across the two outside ter- minals on the warmer. Then across one of the outside terminals and the center terminal. Fi- nally, across the other outside terminal, and the center terminal. If continuity is present as described, the warmer is operating properly. If continuity is not present as described, replace the warmer. Removal and Replacement: 1. Remove the #4-40 slotted-head screws holding the warmer to the brewer 2. 3. Lift the warmer assembly from the brewer. Disconnect the wires from the warmer. 4. 5. Refer to FIG. IO when reconnecting the wires. Place the new warmer into the brewer and se- curely attach it using the #4-40 screws. RED to Right Rear Warmer Switch 3 WHI to Right Rear Warmer Switch 1 5RN to Right Rear Warmer Switch 2 PI693 - FIG. IO THREE HEAT WARMER WIRING - Q Page 16 Part I

RT: On/Off Brew Station FIG. 11 WARMER SWITCHES P1687 P1666 FIG. 12 WARMER SWITCHES Location: These switches are located beneath and to the left of their associated warmers as viewed from the front, FIG.s II and 12. Test Procedure: 1. Locate the switch terminal with black wires that 2. do not go to the nearby indicator lamp. Check the voltage across this terminal and the terminal on the Indicator lamp with white or red wires with a voltmeter. Connect the brewer to the power source. The indication must be: a) 120 volts ac for two wire 120 volt models. b) 200 or 240 volts ac for two wire 200 volt or 240 volt models and three wire 120/240 volt models. 3. c) 100 volts ac for two wire 100 volt models. Disconnect the brewer from the power source. If voltage is present as described, proceed to #4. If voltage is not present as described, refer to the Wir ing Diagrams and check the brewer wiring harness. 4. Check the voltage across the other switch termi, nal and the terminal on the indicator lamp with white or red wires with a voltmeter when the switch is in the upper position. Connect tht brewer to the power source. The indication mus be as described in step 2. Voltage must not bf present across these terminals in the lower posia tion. 5. Disconnect the brewer from the power source. If voltage is ating P resent as described the switch is oper proper y. If voltage is not present as described, replace thf switch. Removal and ReDlacement: 1. Compress the clips inside the housing and gen. 2. tly push the switch through the o Remove the wires from the switc f: ening. terminals. 3. 4. Refer to FIG. 13 when reconnecting the wires. Push the new switch firmly into the opening. BLK (A) (see below) BLK (B) (see below) PI697 - FIG. 13 WARMER SWITCH WIRING - MODEL OT Upper BLK A to Warmer to Indicator Lamp BLK B to Harness P3 OT On/Off Brew Station BLK A to Indicator Lamp to Brew Station Warmer to Timer P3 BLK B to Terminal Block RT On/Off Brew Station BLK A to Indicator Lamp to Timer P3 to Brew Station Warmer BLK B to Left Front Warmer Switch to Right Front Warmer Switch Page 17 Part I

P1666 - FIG. 14 WARMER SW Location: ITCHES J These warmer switches are the two at the left and the left most one on the right of the base asviewed from the front, FIG. 14. Their knobs are marked Off/ On/Off/On. To test these switches, access will also be needed to the terminal block located in the rear of the brewer. Test Procedure: ” 1. Check the voltage across terminal Ll and the white or red wire on the terminal block with a voltmeter. Connect the brewer to the power source. The indication must be: a) 120 volts ac for two wire 120 volt models. b) 200 or 240 volts ac for two wire 200 volt or 240 volt models and three wire 120/240 volt models. c) 100 volts ac for two wire 100 volt models. 2. Disconnect the brewer from the power source. If voltage is present as described, proceed to #3. If voltage is not present as described, refer to the Wir- ing Diagrams and check the brewer wiring harness. 3. Check the voltage across terminal 1 and the white or red wire on the terminal block with a voltme- ter when the switch is in the “ON” position. Con- nect the brewer to the power source. The indica- tion must be as described in step I. Voltage must not be present across these terminals in the “OFF” positions. 4. Disconnect the brewer from the power source. 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: I. 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. 15 when reconnecting the wires. 5. Securely mount the new switch onto the hous- ing and reinstall the knob. FK BLK (Ll) (see below) I I I ‘P BLK (1) (see below) 1 n uu P1695 - FIG, 15 WARMER SWITCH WIRING - MODEL RT Left Rear BLK Ll to Warmer BLK 1 to Left Front Warmer Switch RT Left Front BLK Ll to Warmer BLK 1 to Left Rear Warmer Switch to Brew Station Warmer Switch RT Right Front BLK Ll to Warmer BLK 1 to Terminal Block to Brew Station Warmer Switch Page 18 Part I

I SERVICE (cant .) Indicator Lamp(s) - FIG. 18 INDICATOR LAMP - MODEL P1687 OT - P1688 - FIG. 19 INDICATOR LAMP - MODEL RT - Location: The indicator lamps are located beneath their associ- ated warmers, FlG.s 18 and 19. MODEL OT Upper BLK to Warmer Switch WHI or RED to Warmer to Harness P2 Test Procedure: OT Lower BLK to Start Switch 1. Check continuity of the black wire from the switch to On/Off Brew Station Warmer to the indicator lamp. Switch 2. Check continuity of the white or red wire from WHI or RED to Timer P2 the indicator lamp to the terminal block. to Brew Station Warmer If continuity is present, proceed to #3. If continuity is not present, refer to Wiring Diagrams and check brewer wiring harness. 3. Check for voltage across the indicator lamp ter- minals. Connect the brewer to the power source. The indication must be: a) 120 volts ac for two wire 120 volt models. b) 200 or 240 volts ac for two wire 200 volt or 240 volt models and three wire 120/240 volt models. RT BLK to Start Switch to On/Off Brew Station Warmer Switch WHI or RED to Right Rear Warmer Switch to Left Front Warmer 4. Disconnect the brewer from the power source. If voltage is present, the indicator lamp is operating properly. i 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. 20 when reconnecting the wires 4. Push the new indicator lamp firmly into the opening. WHI or RED (see below) BLK (see below) PI694 - FIG. 20 INDICATOR LAMP WIRING Page 20 Part I

I FIG. 21 LIMIT THERMOSTAT P1698 Location: The limit thermostat is located on the tank lid between the tank heater terminals, FIG. 21. Test Procedure: 1. Disconnect the brewer from the power source. 2. Check voltage across the black wire from the limit thermostat and the white or red wire on the tank heater terminal. Connect the brewer to the power source. The indication must be: a 120 volts ac for two wire 120 volt models. b 1 200 or 240 volts ac for two wire 200 volt or 240 volt models and three wire 120/240 volt models, c) 100 volts ac for two wire 100 volt models. 3. Disconnect the brewer from the power source. If voltage is present as described, proceed to #4. If voltage is not present as described, refer to the Wir- ing Diagrams and check the brewer wiring harness. 4. Check for continuity across the limit thermostat terminals. If continuity is present as described, the limit thermo- stat is operating properly. If continuity is not present as described, replace the limit thermostat. Removal and Replacement: I. Remove both wires from the limit thermostat ter- minals. 2. Carefully slide the limit thermostat out from un- der the retaining clip. 3. Carefully slide the new limit thermostat into the retaining clip. 4. Refer to FIG. 22 when reconnecting the wires. - BLK to Terminal Block BLU to BLU Lead from Control Thermostat Pi130 - FIG. 22 LIMITTHERMOSTAT WIRING - Page 21 Part I

ID VALVE Location: The solenoid valve is located below and to the left of the tank as viewed fro! the rear, FIG. 23. Test Procedure: 1. Check the voltage across the white and black wires with a voltmeter when the On/Off brew sta- tion warmer switch is in the upper position and the start switch is pressed to the lower position and released. Connect the brewer to the power source. The indication must be: a) 120 volts ac for two wire 120 volt models and three wire 120/240 volt models, b) 200 or 240 volts ac for two wire 200 volt or 240 volt models, c) 100 volts ac for two wire ,I 00 volt models, for the approximate setting on the brew timer dial and then return to zero. 2. Disconnect the brewer from the power source. If voltage is present as described, proceed to f3. If voltage is not present as described, refer to the Wir- ing Diagrams and check the brewer wiring harness. 3. Check for continuity across the solenoid valve coil terminals. If continuity is present as described, reconnect the white and black wires and proceed to #4. If continuity is not present as described, replace the solenoid valve. 4. Check the solenoid valve for coil action. Con- nect the brewer to the power source, place the On/Off brew station warmer switch in the upper position, press and release the start switch. Lis- ten carefully in the vicinity of the solenoid valve for a “clicking” sound as the coil magnet attracts and after the approximate setting on the brew 5. timer dial, repels the plunger. Disconnect the brewer from the power source. If the sound is heard as described and water will not pass through the solenoid valve, there may be a block- age in the water line before or after the solenoid valve or, the solenoid valve may require inspection for wear, and removal of waterborne particles. If the sound is not heard as described, replace the solenoid valve. Removal and Replacement: 1. Remove all wires from the solenoid valve coil. 2. Turn off the water supply to the brewer. 3. Remove the bottom pan attached with one or more 8-32 slotted-head screw(s) beneath the front of the brewer. 4. Raise the brewer approximately six inches from the counter top and support the feet on some- thing sturdy. 5. Disconnect the water lines to and from the sole- noid valve. 6. Remove the two IO-32 screws holding the sole- noid valve to the bracket. 7. Lift-out the solenoid valve. 8. Securely install the new solenoid valve to the bracket. Check the direction of flow arrow on the valve. It must be pointing toward the flow control. 9. Securely fasten the water lines to and from the solenoid valve. 10. Refer to FIG. 24 when reconnecting the wires. BLK to Brew Timer WHI to Brew Timer’ FIG. 24 SOLENO fl588 ID VALVE WIRING - Page 22 Part I

SWITCH - MODEL OT - Pm8 FIG. 26 START SWITCH - MODEL RT - Location: The start switch is located in the base, below and to the right of the brew station, FIG.s 25 & 26. Test Procedure: 1. Disconnect the brewer from the power source and remove the wires from both terminals of the start switch. 2. Check for continuity across the two terminals on the switch when it is held in the lower position. Continuity must not be present across these ter- minals in the upper position. If continuity is present as described, reconnect the wires, the switch is operating properly. If continuity is not present as described, replace the switch. Removal and Replacement: 1. Remove all wires from the switch terminals. 2. Compress the clips inside the housing and gen- tly push the switch through the opening. 3. Push the new switch into the opening and spread the clips to hold the switch captive in the hous- ing. 4. Refer to FIG. 27 when reconnecting the wires. BLU to BLK to Lamp Timer PI Indicator Pl697 - FIG. 27 START SWITCH WIRING Page 23 Part I

(cont.) Tank Heater Location: The tank heater is located on the tank lid, FIG. 28. Test Procedure: 1. Check the voltage across the black and white or red wires on the tank heater with a voltmeter when the control thermostat is turned “ON” (fully clock- wise). Connect the brewer to the power source. The indication must be: a) 120 volts ac for two wire 120 volt models. * b) 200 or 240 volts ac for two wire 200 volt or 240 volt models and three wire 120/240 volt models. c) 100 volts ac for two wire 100 volt models. 2. Disconnect the brewer from the power source. If voltage is present as described, proceed to f3. If voltage is not present as described, refer to the Wir- ing Diagrams and check the brewer wiring harness. 3. Check for continuity across the terminals of the tank heater. If continuity is present as described, reconnect the wires, the tank heater is operating properly. If continuity is not present as described, replace the tank heater. NOTE - If the tank heater remains unable to heat, re- move and inspect the heater for cracks in the sheath. Removal and Replacement: Remove the wires to the tank heater and limit 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. thermostat terminals. Gently pull the thermostat tube with grommet out of the tank lid. Remove the sprayhead and sprayhead nut from the panel on the bottom of the hood. Disconnect the air vent tube from the fitting above the sprayhead panel. On units with faucet, disconnect the inlet and outlet tubes from the faucet coil fittings. Loosen the eight 8-32 nuts on the tank lid and remove the tank lid. Remove the two nuts from the tank heater fit- tings. Remove the tank heater. Install the new tank heater with new sealing wash- ers on the underside of the tank lid. Securely tighten the nuts to be certain of a wa- tertight seal. Reinstall the tank iid and tighten the eight nuts. Reconnect the air vent tube to the fitting above the sprayhead panel. Reconnect the inlet and outlet tubes to the fau- cet coil fittings on units with faucet. Reinstall the sprayhead tube nut and sprayhead. Reinstall the thermostat into the tank lid. Refer to FIG. 29 when reconnecting the wires. WHI (Models OT15 & 20) to Terminal Block RED (Models OT35 & RT35) to Terminal Block l- BLK to Control Thermostat C ‘. FIG. 29 TANK HEATER WIRING Page 24 Part I

on the tank heater, FIG. P1698 FIG. 30 THERMAL CUT-OFF Test Procedures: 1. Disconnect the brewer from the power source. 2. Disconnect the thermal cut-off from the tank heater terminal and the wiring harness. 3. Check for continuity across the thermal cut-off terminals using an ohmmeter. If continuity is present, the thermal cut-off is operating properly. If continuity is not present as described, replace the thermal cut-off. Removal and Replacement: 1. Disconnect the thermal cut-off from the tank heater terminal and the wiring harness. 2. Remove thermal cut-off and discard. 3. Connect new thermal cut-off to the tank heater terminal and the wiring harness. 4. Refer to FIG. 30 when reconnecting wires. Page 25 Part I

Ll N L2 SW. & (FAUCETOPTION ONLY) ‘-1 THERMALCUT-OFF BLK & BLK WHI n WHI U “KEEPWARM”HEATER i”............” , &pl$i WH, 1 , / mn n VVI-II ’ u c. UPPERWARMER WHI BLK n n u-” WHI BREWSTATIONWARMER I POLARIZI I CON!- . _. . . , . . . . . . . . . . . . . . . . . . . . ..“........ I 120 VOLTS AC 2 WIRE 120/240.VOLTS AC 3 WIRE SINGLE PHASE 60 HZ I 1 Page 26 Part I

Li L2 GREEN -- I LIMIT SW. 8. .- t :“..........“....‘““““““““i BLK ‘$3 BLU g;;> BLK &&& h.........,...., WHI . _ . . -. . _ .- _. 5ow n WHI U “KEEP WARM” HEATER WHI $$ WHI WHI WHI BREW STATION WARMER l I : : : : BREW . WHI : ? I--’ WHI g TIMER . SELECTOR CONTROL BOARD l/3 2/3 F gssasa GRN YEL RED WHI Page 27 Part I

Ll L2 GRNNEL SW. & UMIT THERMOSTAT p................................., 2940w fg 22ov. ,, BLK T&Z BL’J @ BL’( 2s; U u . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...* 9ow @ 220v. 11 OW 8 240V. 0 n-n/ RED/BLK p\? u // REDlBLK 4 D UPPER WARMER BLK I” . . . . . . . . . . . q)z REDIBLK ,, I . . . . . . . . . . . . i 9ow 8 22ov. BLK 11OW @ 240V. u u REDIBLK 6 1 50-60HZ Page 28 Part I

Ll READYINDICATOR ,,BLK ,,BLK f BLK z - n RED 13 RED,, Kl N.0 TANKHEATER Kl N.0 BLK i' . . . . . . . . . . . . t 0 BLK p<" BLK p.&K 9.c RED : i < n u w RED P2 // RED,, : i . . . . . . . . . . . . 1 UPPERWARMER :"...........: BLK : : . qp RED i I I IOOVOLTSAC 2WlRE SINGLEPHASE 50-60 HZ / I . . . . . . . . . . . . . I Pl,P2,& P3ARE PINSOFA POLARIZED THREE-PIN CONNECTOR. i i : i BRFJ,tj,/ k-WHI F RED 1 i TIMER i : . Page 29 Part I

SW.&THERMOSTAT RED 0 BLK n /\/\I\/\-“/ RED v, U U I/ RED, UPPER WARMER e Page30 Part I

C.... . : i . i i : . : ; : . i i L... GREEN SW. 84 (FAUCET OPTION ONLY) THERMAL CUT-OFF ‘-A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...* ,-j,JK fi BLK ;;-- WHI n-n WHI Ll “KEEP WARM” HEATER , i . : BLK i. WHI BLK WHI c . . . . . . . . . . . . i WARMER - OPTIONAL FLASHING INDICATOR SYSTEM . . ..*.-.......................................................................................................................................................... WHI !$WHI BLK ( BLKn-n WHI RIGHT FRONT WARMER ,, BLK L’ BLK n - n WHI ON LEFT REAR WARMER ,, BLK BLK n - n WHI Ll U LEFT FRONT WARMER ..‘ ..% i : : . ; . : : . ; : i : : I.. . ..m 4) -4) 1201240 VOLTS AC 3 WIRE SINGLE PHASE 60 HZ P’ . i ! i : . ; ; : i i . : :. LOW x RIGHT REAR WARMER ‘4 NY : ............. ............................... ........................................................................................ N t 1 i Page 31 Part I

, GRNNEL l LIMIT SW. & THERMOSTAT THERMOSTAT ,.....‘.......'.....................b, BLK n n U-U RED TANKHEATER p........... s RED * . . . . . . . . . . . . 5 . BLK *q BLK n n RED U : .._......I.. .: u II,Lr\l"t-r\ . . 1 1 CONNECTOR. i : I BREW k 'WHIP,? RED i TIMER f t . . . . . . . . . . . . . . . . . . . . . . . . . . . ..i OFF -. a BLK ONWON (I& LEhaiR n u-u RED LEFTFRONTWARMER n n RED U U RIGHTFRONTWARMER OFF RIGHTREARWARMER BLK L........................................ LT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . NY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..G Page32 Part I

rlh BLK n u- TANKHEATER ' "LJ K: rhlo-t OFF n n LEFTREARWARMER RED,, 19 I ELK n-n nc1 U ON OFF LEFTFRONTWARMER or ?I b BLK OFF BLK n n U U RED,, RIGHTFRONTWARMER BLK OFF RIGHTREARWARMER '4 WHI BRN J - RED t 1 OFF+L ! %...................s.................,..... . . Ng . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..s I I Page 33 Part I

Ll READYINDICATOR GRNNEL I 1 = LIMIT SW.&THERMOSTAT BLK 3500w BLK n-n RED U TANK HEATER ,............ l BLK I;: U@? i-, RED : . i TIMER i I : : OFF i . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ieLK& n-n RED U N OFF LEFTFRONTWARMER OQlA1 RED BLK oavv n U U RIGHTFRONTWARMER RIGHTREARWARMER LOW/97W MED/125W HIGH/275W 200 VOLTS AC SINGLE PHASE Page 34 Part I

Supplement to RT/OT Operating & Service Manual # 10021 ELECTRICALREQUIREMENTS This brewer requires Z-wire, grounded service rated 120 volts ac, 25 amp, single phase, 50-60 Hz. 2925 total watts. Substitute1 20 volts ac for all references to 240 volts ac used in the Operating & Service Manual. The equipment is wired the same as the standard model FIT, except. a) The red wire from the tank heater is connected to the white leg of the terminal block b) The red wire from the high heat warmer switch is connected to black leg of the terminal block. REPLACEMENTPARTS Substitute the following parts for those used in the Operating & Service Manual. PART # DESCRIPTION 4636 . . . . . . . . . . . . . Tank Heater (instead of # 4637) BUNN-0-MATIC CORPORATION POST OFFICE BOX 3227 SPRINGFIELD, ILLINOIS USA 6270813227 TELEPHONE: (217) 529-6601 FAX: (217) 529-6644 TELEX: 755371 CABLE: BUNNOMATIC 10427 4/89 0 1989 BUNN-O-MATlC CORPORATlON Part I Page 35

1800W Q 12OV. RIK n-n WHI , TANK HEATER I , y............. :.............: RI K 130w Q 12ov. Y u I ( PINSOFA i . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . i :.u... n l~Wjt!J 2j IV. r ” VVVY” I ( LEFT REAR WARMER nh 14 WI I L w I31 K 12ov. u I ( ON al LEFI- FRONT WARMER BIK b OFF L 0 RI K 130w Q 120v. u Y I , CN CN RIGHT FRONT WARMER Off RIGHT REAR WARMER LOW 97W / MED 125W / HIGH 535W 1120 VOLTS AC 1 I 2 WIRE SINGLE PHASE I Q1994 BUNN=O-MATIC CORPORATION ’ 60HZ Part I Page 36

Designs, materials, weights, specifications, and dimensions for equipment or replacement parts are subject to change without notice. BUNN=O-MATIC CORPORATION POSTOFFlCEBOX3227 SPRINGFIELD,ILLiNOIS 62708-3227 PHONE:(217)529-6601 FAX:(217)529-6644 10785.OOOOC Q/99 01998 Bum-0-Matic Corporation Part I

by it to be commercially free from defects in material and workmanship existing at the time of manufacture and appearing within one year from the date of installation. In addition: 1.) Bunn warrants electronic circuit and/or control boards to be commercially free from defects in material and workmanship for two years from the date of installation. 2.) Bunn warrants the compressor on refrigeration equipment to be commercially free from defects in mate- rial and workmanship for two years from the date of installation. 3.) Bunn warrants that the grinding burrs on coffee grinding equipment will grind coffee to meet original factory screen sieve analysis for three years from date of installation or for 30,000 pounds of coffee, whichever comes first. This warranty does not apply to any equipment, component or part that was not manufactured by Bunn or that, in Bunn’s judgement, has been affected by misuse, neglect, alteration, improper installation or operation, improper maintenance or repair, damage or casualty. THE FOREGOING WARRANTY IS EXCLUSIVE AND IS IN LIEU OF ANY OTHER WARRANTY, WRITTEN OR ORAL, EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, ANY IMPLIED WiRRANTY OF EITHER MER- CHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. The agents, dealers or employees of Bunn are not authorized to make modifications to this warranty or to make additional warranties that are binding on Bunn. Accordingly, statements by such individuals, whether oral or written, do not constitute warranties and should not be relied upon. The Buyer shall give Bunn prompt notice of any claim to be made under this warranty by telephone at (217) 529-6601 or by writing to Post Office Box 3227, Springfield, Illinois, 62708-3227. If requested by Bunn, the Buyer shall ship the defective equipment prepaid to an authorized Bunn service location. If Bunn determines, in its sole discretion, that the equipment does not conform to the warranty, Bunn shall repair the equipment with no charge for parts during the warranty period and no charge for labor by a Bunn Authorized Service Representative during the warranty period. If Bunn determines that repair is not feasible, Bunn shall, at its sole option, replace the equipment or refund the purchase price for the equipment. THE BUYER’S REMEDY AGAINST BUNN FOR THE BREACH OF ANY OBLIGATION ARISING OUT OF THE SALE OF THIS EQUIPMENT, WHETHER DERIVED FROM WARRANTY OR OTHERWISE, SHALL BE LIMITED, AS SPECIFIED HEREIN, TO REPAIR OR, AT BUNN’S SOLE OPTION, REPLACEMENT OR REFUND. In no event shall Bunn be liable for any other damage or loss, including, but not limited to, lost profits, lost sales, loss of use of equipment, claims of Buyer’s customers, cost of capital, cost of down time, cost of substi- tute equipment, facilities or services, or any other special, incidental or consequential damages. (Revised December 1999) Part I

ELECTRICAL & OPERATING CONTROLS (Model RL) ................................................................................................................. 32 ELECTRICAL & OPERATING CONTROLS (Model OT) ................................................................................................................. 36 ELECTRICAL & OPERATING CONTROLS (Model RT) ................................................................................................................. 40 FAUCET & TUBING (Model RTF & Models RT & OT with Faucet Conversion) ............................................................................ 22 FUNNELS & BASKETS ................................................................................................................................................................ 42 HOUSINGS & PANELS (Model OL) ............................................................................................................................................... 4 HOUSINGS & PANELS (Model RL) ............................................................................................................................................... 6 HOUSINGS & PANELS (Model OT) ............................................................................................................................................... 8 HOUSINGS & PANELS (Model RT) ............................................................................................................................................. IO NUMERICAL INDEX .................................................................................................................................................................... 44 STRAINER (Models OL & RL) .................................................................................................................................................... 18 STRAINER/FLOW CONTROL (Models OT & RT) ......................................................................................................................... 20 TANK & COMPONENTS (Models OL & RL) ................................................................................................................................ 12 TANK & COMPONENTS (Models OT & RT) ................................................................................................................................ 16 WARMER ASSEMBLIES (Models OL & OT) ................................................................................................................................ 24 WARMER ASSEMBLIES (Models RL & RT) ................................................................................................................................ 26 3 (Revised December 1999) Part I

,:. . . ,:’ . . ‘._ : ‘. 16 15 14 (Revised Decemberl999) Part I

05103.1001 1 Hoodw/Decals(Includesitems 2thru 7)(ModelOL25B only) 05103.1002 1 Hood w/Decals (Includes items 2thru 7)(ModelOL358 only) 01331.0000 4 Screw,RND SLTD#lO-32x.50" 00971.0000 4 Nut, KEPS#lO-32 00823.0000 00658.0000 00462.0001 00917.0000 1 1 1 6 1 2 1 I 1 2 2 2 2 1 1 1 1 6 6 1 1 4 4 4 1 1 2 2 1 1 1 Decal,BUNN-0-MATIC Decal,WARNlNG DECANTER/FUNNEL -mm----- 12364.0000 00606.0000 Plug Fastener, "J"Type#8-32 Gasket, U-Channe13.50" (Order item 21) Decal,Caution -Warmers are Hot 05016.0000 05017.0000 02310.0000 00971.0000 01331.0000 01512.0000 Bushing Bracket, Right Bracket, Left Screw,Truss Head #10-32x.50" Nut, KEPS#lO-32 Screw,RND SLTD#lO-32x.50" Lockwasher, External-tooth#lO 05105.0000 00927.0000 05102.0000 05102.0001 01311.0000 00978.0000 05014.0000 01315.0000 00754.0001 00751.0000 00752.0000 22358.1001 22358.1000 01320.0000 01516.0000 00656.0000 00831.0000 00715.0000 02434.1000 Housing Clip, Cable Chassis Chassis (ModelOL25B only) Screw,Truss Head#8-32 x.25" Fastener, Flat Type #8-32 Drip Tray Screw,Truss Head#8-32 x.375" Foot/Locator Spring Cover Panelw/Decals (Model OL-15)(lncludes items 18thru 20) PanelwlDecals (Models OL-20 & 35)(lncludes items 18 & 19) Screw,RNDSLTD#8-32x1.0" Washer, Nylon Retainer Decal,COMPLlANCETOPLUMBlNGCODE Decal, WARNING ELECTRICAL Adapter, Strain Relief (Model OL-15 only) Gasket, U-Channe118.0" (Use as required) (Revised Decemberl999) Part I

Part I

Screw, RND SLTD #8-32x4.0” Washer, Nylon Retaining Lid Screw,FLH SLTD #8-32x.75” Fastener, “J” Type#8-32 Schematic, Electrical (Models without High Heat Warmer) Schematic, Electrical (Models with High Heat Warmer) Decal, Decorative Stripe Plug Fastener,“J”Type#8-32 Hood w/Decals (Includes items 5thru 11) Hood w/Decals (Includes items 5thru ll)(Model RL35B w/Ready Light only) Screw,RND SLTD#lO-32x.50” Nut,KEPS #IO-32 Decal,BUNN-0-MATIC Decal,WARNlNG DECANTER/FUNNEL Gasket, U-Channe13.50” (Order item 24) Decal,Caution -Warmers are Hot Bushing Housing w/Decal(Includes items 6,11,12and 14) Decal, HIGH HEAT(Modelswith High Heat Warmer) Bracket, Right Bracket, Left Screw,Truss HeadflO-32x.50” Nut, KEPS #IO-32 Screw,RND SLTD#lO-32x.50” Lockwasher, External-tooth#lO Chassis Screw,Truss Head#8-32x.25” Fastener, Flat Type #8-32 Drip Tray Screw,Truss Head #8-32x.375” Foot/Locator Spring Cover Panelw/Decals(Includesitem 22and 23) Screw,RNDSLTD #8-32x1.0” Washer, Nylon Retainer Decal, WARNING ELECTRICAL Decal,COMPLlANCETO PLUMBING CODE Gasket, U-Channel18.0” (Use as required) 7 (Revised Decemberl999) Part I

OL,RL OT,RT . . . . _..’ . . . ,/ s-.‘ .. ._ *... ‘ . ,_‘ . ‘ .. ,.-. .- . . ..--..._..., ..,, ,..’ ,.,’ . . . . . . .,- :.... 7. i ‘.. 1. $2 i .2 .‘. . . . . ..__ . . . . . ‘.‘.. :: ..:..........:::. ‘... B . . . .._._.... ‘. I . . i. . . . ,..,.,. r;,:!::::{;:,+.. . . ;:,.*.. .*: *:. I ..s :::. . .._ ..,‘,‘,!.* ..,. .. ;.,: ,:’ /...........,,* . . r:;:, . . . . . . ‘... . ‘i:*:,:., . . ‘: .I: ; . . . . ..,a ..::..: . . :r:;. . . . . . . . ..-,. I ‘jj,$$ “ .....:;, 1 2 3 8 5 9 10 P1650 8 (Revised December 1999) Part I

Hood (Model OT35 w/Interface only) Screw,RNDSLTD#lO-32x.50" Nut, KEPS#lO-32 Decal,BUNN-0-MATIC Decal, BUNN-0-MATIC (ModelOT w/Interface only) Decal, WARNING DECANTER/FUNNEL Connector Fastener,"J"Type #8-32 Gasket, U-Channel3.50"(Orderitem 23) Decal,Caution -Warmers are Hot Bushing Bracket, Right Bracket, Left Screw,Truss Head #10-32x.50" Nut,KEPS#lO-32 Screw,RND SLTD#lO-32x.50" Lockwasher, External-tooth #IO Housing w/Decal (Includes items 5,7,8 & 10) Clip, Cable Coverw/Decal (Includes item 13) Screw, RND SLTD #8-32x.50" Washer, Nylon Retaining Schematic, Electrical Chassis Screw,Truss Head#8-32x.25" Fastener, Flat Type #8-32 Drip Tray Screw,Truss Head#8-32x.375" Foot/Locator Spring Cover DecalCAUTION-THERMOSTAT Panelw/Decals (ModelOT-15)(lncludes items 21 thru 23) Panelw/Decals (Models OT-20 & 35)(lncludes items 21 & 22) Screw, RND SLTD #8-32 x1.0" Washer, Nylon Retainer DecalCOMPLlANCETO PLUMBING CODE Decal,WARNlNG ELECTRICAL Adapter, Strain Relief (Model OT-15 only) Gasket, U-Channe118.0" (Use as required) 9 (Revised Decemberl999) Part I

ITEM 1 6 7 8 9 IO 11 12 13 I< /’ 14 15 16 17 18 19 20 21 22 23 24 25 PARTNO. GUY. 22428.0000 1 01320.0000 2 01322.0000 1 01516.0000 3 00822.0000 00406.0001 00917.0000 05025.1000 05025.0002 01331.0000 00971.0000 00823.0000 00875.0000 00658.0000 1 1 7 m----m-- 12364.0000 00606.0000 05027.1000 00688.0000 05016.0000 05017.0000 02310.0000 00971 .oooo 01331.0000 01512.0000 22357.0002 01318.0000 01516.0000 10277.0000 32423.0000 04970.0000 01311.0000 00978.0000 05005.0000 01315.0000 00754.0001 00751.0000 00752.0000 00774.0000 22351.1000 01320.0000 01516.0000 00831.0000 00656.0000 02434.1000 1 1 1 1 4 1 1 1 1 1 2 2 2 2 1 4 4 1 1 1 6 6 1 2 DESCRIPTION Coverw/Decals (Includes item 2) Screw, RND SLTD #8-32x1.0” Screw, RND SLTD #8-32x1.5” Washer, Nylon Retaining Decal, Decorative Stripe Connector Fastener, “J”Type #8-32 Hood w/Decals Includes items 3.thrr.r 9) . Hood(ModelR + For Models RT & OTwith Faucet Conversion) Screw,RNDSLTD#lO-32x.50” Nut, KEPS #IO-32 Decal, BUNN-0-MATIC Decal,BUNN-0-MATIC(ModelRTForModels RT & OTwith Faucet Conversion) Decal,WARNlNG DECANTER/FUNNEL Gasket, U-Channel3.50” (Order item 25) Decal, Caution -Warmers are Hot Bushing Housing w/Decal (Includes items 4,lO and 12) Decal, HIGH HEAT(Models with High Heat Warmer) Bracket, Right Bracket, Left Screw,Truss Head#lO-32x.50” Nut, KEPS#lO-32 Screw,RNDSLTD#lO-32x.50” Lockwasher,External-tooth#lO Coverw/Decal(Includes item 15) Screw, RND SLTD#8-32x.50” Washer, Nylon Retaining Schematic, Electrica (Models without High Heat Warmer) Schematic, Electrical (Models with High Heat Warmer) Chassis Screw,Truss Head#8-32x.25” Fastener, FlatType#8-32 Drip Tray Screw,Truss Head#8-32x.375” Foot/Locator Spring Cover Decal,CAUTION-THERMOSTAT Panel w/Decals (Includes item 23 and 24) Screw,RNDSLTD#8-32x1.0” Washer, Nylon Retainer Decal, WARNING ELECTRICAL Decal,COMPLlANCETO PLUMBING CODE Gasket, U-Channe118.0” (Use as required) 11 (Revised December1999) Part I

OL,RL OT,RT -9 , i 17 18 '19 24 20 26 P1652 (Revised Decemberl999) Part I

(Models OL & RL) ITEM 6 7 8 /' 9 IO 11 12 13 14 15 16 17 18 19 20 21 22 PARTNO. 05033.1000 05032.1000 05038.1000 ---w--w- --m----- --mm---- 20768.0000 03989.0000 00929.0001 05078.0000 02775.0000 00908.0000 02747.0000 02755.1000 02756.1000 05037.1000 05036.1000 20942.1000 00943.0000 05110.1000 02308.0000 00946.0000 05084.0000 05108.0000 03807.0000 01527.0000 05106.0000 05106.0001 05082.0000 02713.0000 02746.0000 02745.0000 05039.0000 04831.0000 00970.0000 QN. 1 1 1 1 1 1 1 1 1 1 4 4 1 1 1 1 1 1 2 1 1 2 1 1 1 3 1 1 1 1 1 1 1 1 2 DESCRIPTION Tank Assy (1425W,120V)(lncludesitems 1 thru 33) TankAssy(1800W,120V)(lncludesitems 1 thru 33) Tank Assy (3500W,120/240V)(lncludes items 1 thru 33) TankAssy(3500W,230V)(lncludesitems 1 thru 33) TankAssy(2500W,100V)(lncludesitems 1 thru 33) TankAssy(3500W,200V)(lncludesitems 1 thru 33) Tube Assy (Includes item 2) Grommet Fitting, Compression Lid, Tank Bracket, Hold Down Nut, Hex#8-32 Gasket,Tank Lid Element,Tank Heater (1425W,120V)(lncludes item 8) Element,Tank Heater (1800W,120V)(lncludes item 8) Element,Tank Heater(3500W, 240V)(lncludes item 8) Element,Tank Heater(2500W,100V)(lncludes item 8) Element,Tank Heater(3500W, 200V)(lncludes item 8) Gasket Float Switch Assy (Includes items IOthru 14) Screw,PNH SLTD#8-32x.375" Nut, Hex Brass.125-27 Bracket Spring Ring, Retaining Washer, Adjusting Float Switch (Includes items 13 & 14) Float Switch (Includes item 13) Overflow Cup Syphon Gasket Nut Tank Clip Nut, KEPS#8-32 (Continued) 13 (Revised Decemberl999) Part I

20 26 Pi 652 -9 Part I

(Models OL & RL) ITEM PARTNO. QN. DESCRIPTION 1 Terminal Block 23 24 05067.0000 05070.0000 1 Plate 00970.0000 2 Nut, KEPSf8-32 25 26 27 28 29 30 31 00932.0000 2 Spacer 00929.0001 1 Fitting, Compression 12747.0000 1 Tube,Sprayhead 01075.0000 1 Nut,Sprayhead 01082.0000 1 Sprayhead 2 Nut 1 BlanketHeater(120V) 1 BlanketHeater(240V) 00942.0000 04626.0000 01928.0000 29329.1000 1 Limit Thermostat 32 33 34 00935.0001 1 Cap 01370.0000 1 Screw,PNH SLTD#8-32x.75" 01522.0000 1 Washer 00908.0000 1 Nut, Hex#8-32 35 1 Gasket, U-Channe13.50" (Order item 36) 36 02434.1000 Gasket, U-Channe118.0" (Use As Required) 15 (Revised Decemberl999) Part I

(Models OT & RT) ITEM PARTNO. 05682.1000 05683.1000 05684.0000 -ss----- -------- 1 8 9 IO 11 12 13 14 04626.0000 01928.0000 04129.0000 04221 .OOOO 05553.0000 00908.0000 05515.0000 29329.1000 05533.0000 05533.0002 00908.0000 05518.0000 00942.0000 04236.1000 04636.1000 04637.1000 00943.0000 00400.0001 12687.0000 12689.1000 15 12688.0000 16 20211 .OlOO 17 21016.0122 18 01075.0000 19 01082.0000 20 00929.0001 21 00406.0001 QN. 1 1 1 1 1 1 1 1 1 1 3 1 1 1 1 8 1 2 1 1 1 2 2 2 1 DESCRIPTION Tank Assy (132OW, 120V)(lncludes items 1 thru 11) Tank Assy (18OOW, 12OV)(lncludes items 1 thru 11) Tank Assy (35OOW, 120/240V)(lncludes items 1 thru 11) Tank Assy (35OOW, 240V)(lncludes items 1 thru 1 I) Tank Assy (Model RTF only)(3500W, 120/240V)(lncludes items 1 thru 17) Blanket Warmer (120V) Blanket Warmer (240V) Tank Gasket, Tank Lid Tube Kit, Sprayhead (Includes items 5 and 8) Nut Gasket Limit Thermostat Tank Lid Tank Lid (Model RTF or Models RT & OT with Faucet Conversion) Nut Hub, Syphon Nut Element, Tank Heater (132OW, 120V)(lncludes item 11) Element, Tank Heater (18OOW, 120V)(lncludes item 11) Element, Tank Heater (35OOW, 120/240V)(lncludes item 11) Gasket Fitting, Elbow (Model RTF or Models RT & OT with Faucet Conversion) Nut (Model RTF or Models RT & OT with Faucet Conversion) Coil Assy (Includes item 15) (Model RTF or Models RT & OT with Faucet Conversion) Gasket (Model RTF or Models RT & OT with Faucet Conversion) Thermal Fuse (Model RTF or Models RT & OT with Faucet Conversion) Lead, Black 4.0” (Not Illustrated)(Model RTF or Models RT & OT with Faucet Conversion) Nut, Sprayhead Sprayhead Fitting, Compression Connector 17 (Revised December 1999) Part I

ITEM PARTNO. QN. DESCRIPTION 1 Tube, Fill Basin 05096.0000 00402.0001 Connector 00458.0001 1 Adapter 00432.0001 1 Elbow 03820.0000 LeadSolenoidJumper 1 Solenoid,120V,1.48" Dia Coil (Not available, order 01085.0002) 1 Solenoid, 12OV, 1.00" Dia Coil (Includes items 7thru 10) 1 Solenoid, 240V(Includes items 7thru 10) 1 Solenoid, lOOV(Includesitems 7thru 10) 1 Solenoid, 200V (Includes items 7thru 10) 2 Screw, PNH PHH #10-32x.375" 2 Lockwasher,#lO ---s---w 01085.0002 01975.0000 01138.0000 21180.0000 01327.0000 01502.0000 -------- 1 Solenoid Valve Base, 1.48" Dia Coil (Not available, order 01085.0002) 28479.0000 1 Solenoid Valve Base Kit, 1.00" Dia Coil (Includes O-ring) 01116.0000 1 Guide, 1.48" Dia Coil 28481.0000 1 Guide Kit, 1.0" Dia Coil (Includes Washer and O-ring) 01101.0000 1 Solenoid Valve Coil,12OV, 1.48" Dia Coil 28480.0000 1 Solenoid Valve Coil, 12OV, 1.00" Dia Coil 21181.0000 1 Solenoid Valve Coil, 200V 01100.0000 1 Solenoid Valve Coil, 240V 01139.0000 1 Solenoid Valve Coil, IOOV 01111.0000 1 Solenoid Valve Repair Kit,1.48" Dia Coil (Includes Plunger, Sealand Spring) 01111.0002 1 Solenoid Valve Repair Kit, 1.00" Dia Coil (Includes Plunger, Spring and O-ring) IO 11 20201.4300 1 Bracket 02308.0000 1 Screw, PNH SLTD#8-32x.375" 12 13 14 20581.0001 1 Elbow 05119.0000 1 Tube 00459.0001 1 Fitting, Bulkhead 01532.0000 1 Lockwasher, Internal-tooth ,438" 00463.0000 1 Nut, Hex ,438-20" 15 16 17 18 19 20 21 01119.0000 1 Tube (Model OL-15 only) 01104.0000 1 Tube 23820.0000 1 Strainer (Includes items 18thru 20) 1 Body(Orderitem17) 23721.0000 1 Screen 1 Cap,End 22293.0000 1 Adapter(ModelOL-15 only) 19 (Revised Decemberl999) Part I

OL,RL OT,RT *--. ,&Xj*:,* ,,-.::. ~‘,~~::::~~----~-,~~~- ‘==$.Iqf;;:p $5 I' ,--\ '-.. .$ 1 .., \ .- t --. I:, : + 6 i+,, cg..2 :-;:::I: ::m.---e ,{ ,; \ i $4 *. -..: i .-*, e;s:$pJj~~ : .'...-.. F ________.... --.‘....* ~$;y::: :..... -&./-a : ‘---.~~--., -..z;..- -. ', '\ ' I I I , ' I 0 1 : : , : : I i : I I-.' a I I I 8 I I I 4 0 __..---.... I I --._ ' _.-- : ,-- -. 0 --. -. ' !a' _ ! p '. , 1' $4 '\I 8' I I \ \ : '. i ,’ *. i .I’ --.. .* I ---_ ..-- . . . . . ..-- i i i I 10 23 ‘\ ‘\ .\ ‘\ ‘\ ‘\ ‘\ ‘\ .\ .x P1655 20 (Revised December 1999) Part I

Decal, CheckValve Tube Tube (For usewith 240V solenoid) Flow Control, ,195 GPM (Includes items 6thru 9) Body (Order item 5) Valve, Flow Control Gasket, Flow Control Outlet, Flow Control Solenoid, 12OV, 1.48" Dia Coil (Not available, order01085.0002) Solenoid,120V,1.00" Dia Coil (Includes items 11 thru 14) Solenoid, 240V(Includes items 11 thru 14) Solenoid, 200V(Includes items11 thru 14) Screw,PNH PHH#lO-32x.25" Lockwasher, External-tooth #IO Solenoid Valve Base, 1.48" Dia Coil (Not available, order 01085.0002) Solenoid Valve Base Kit, 1.00" Dia Coil (Includes O-ring) Guide, 1.48" Dia Coil Guide Kit, 1.0" Dia Coil (Includes Washer and O-ring) Solenoid Valve Coil, 12OV, 1.48" Dia Coil Solenoid Valve Coil, 12OV, 1.00" Dia Coil Solenoid Valve Coil, 2OOV Solenoid Valve Coil, 240V Solenoid Valve Repair Kit, 1.48" Dia Coil (Includes Plunger, Sealand Spring) Solenoid Valve Repair Kit, 1.00" Dia Coil (Includes Plunger, Spring and O-ring) Connector Tee(ModelRTFonly) Tube (ModelOT- only) Tube Strainer(lncludes items 20thru 22) Body(Orderitem17) Screen Cap,End Adapter (Model OT-15 only) 21 (Revised Decemberl999) Part I

OL,RL OT,RT 7 6 .-..,. . . . . . ‘.. . . . . . 16 ' 22 21 2,O 19 18 17 I P1656 22 (Revised Decemberl999) Part I

ITEM 1 2 3 4 5 6 7 8 9 IO 11 12 13 14 15 16 17 18 19 20 21 22 23 24 PARTNO. QTY. DESCRIPTION ---w---w 00398.0002 --w-B--- 0501 1 .oooo 00484.0001 20726.0000 00402.0001 20747.0000 -------- 13059.0000 01532.0000 12915.0000 ---m---- 13057.0000 13058.0000 13061 .OOOO 13053.0000 02858.0000 13060.0000 13055.0000 13054.0000 13056.0000 00875.0000 20201.5600 1 1 1 1 1 1 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Tube (See STRAINER/FLOW CONTROL) Tee Solenoid (See STRAINER/FLOW CONTROL) Tube Valve, Needle Tube Elbow Tube Coil Assy (See TANK & COMPONENTS) Nut Lockwasher, Internal-tooth .438” Faucet Assy (Includes items 13 thru 22) Body (Order item 12) Clip, Safety Aerator Kit Handle/Stem Assy (Includes items 17 thru 22) Handle Kit (Includes item 18) Pin, Spring .I 25” Dia x .50” Bonnet Nut Spring Stem Seat Cup Decal, BUNN-0-MATIC Decal, WARNING HOT WATER 23 (Revised December 1999) Part I

GUY. DESCRIPTION 1 1 1 1 1 3 3 1 1 1 1 1 1 2 1 1 3 3 3 1 1 1 1 1 1 1 1 1 1 1 1 3 3 1 1 1 1 1 2 Warmer Housing Assy (ModelOL)(lncludes items 1 thru 13) Warmer Housing Assy (ModelOT)(lncludesitems 1 thru8,10,12 &13) WarmerAssy,100W/120V(Includes items 2thru 6) WarmerAssy,240V(Includesitems 2thru 6) Warmer Assy, 200V(Includesitems 2thru 6) Screw, PNH PHH#4-40x.50" Fastener, "J" Type #4-40 Dish Spacer Element(100W/120V) Element(lOOW/240V) Element(100W/200V) Plate Nut Housing,TopWarmer(ModelOL) Housing,TopWarmer(ModelOT) Screw, #8-32x 2.5" (Model OL) Screw,#8-32x4.0" (ModelOT) Washer, Nylon Retaining Decal, Decorative Stripe Lid, PourOver(ModelOL only) Screw, FLH SLTD#8-32x.75" Fastener, "J"Type#8-32 Harness,TopWarmer(120V) Harness,Top Warmer(240V) Schematic, Electrical (Model OL only) Lamp (120V) Lamp (240V) Switch,ON/OFF WarmerAssy,100W/120V (Includes items15thru 19) WarmerAssy,100W/240V(Includes items15thru 19) Screw, PNH PHH #4-40x.50" Fastener, "J" Type #4-40 Dish Spacer(l20V only) Element(100W/120V) Element(lOOW/240V) Plate Nut 25 (Revised December1999) Part I

OL,RL OT,RT I I - 240V LOWER WARMERS 26 (Revised December 1999) Part I

‘I ; .i 1 ITEM PARTNO. 8 9 IO 11 03697.0000 02817.0000 01303.0000 01304.0000 00916.0000 03656.0000 13042.0001 01143.0000 01951.0000 05212.0000 00970.0000 03311.0000 03312.0000 01303.0000 00916.0000 01161.0000 01907.0000 01503.0000 00910.0000 01198.0000 01332.0000 01197.0000 00909.0000 QTY. DESCRIPTION 5 WarmerAssy,13OW/120V (Includes items 2thru 6) 5 WarmerAssy,240V(Includesitems 2thru 6) 16 Screw, PNH PHH#4-40x.50” 1 Screw, PNH PHH #4-40x.75” 17 Fastener, “J”Type #4-40 1 1 1 1 1 2 1 1 3 3 1 1 3 3 1 1 1 3 Dish Spacer(120Vonly) Element(100W/120V) Element(lOOW/240V) Plate Nut Warmer Assy, High Heat120V(Includesitems 8thru WarmerAssy, High Heat240V(Includes items 8thru 11) Screw, PNH PHH #4-40x.50” Fastener, “J”Type#4-40 Element,120V(Includes hardware below) Element, 240V(Includes hardware below) Washer Nut, Hex#lO-32 Plate, Retainer Screw,PNH SLTDflOx.50” Dish Nut, Brass#lO-32 Models with High Heat Warmers 27 (Revised December1999) Part I

Part I

1 Lead,Solenoid Jumper 1 Lead, BLK 27.0" 1 Lead, BLLVBLK23.0" 1 Harness, Main (Models OL15 & 20) 1 Harness,Main (Mode10L35) 1 Harness, Main (Model OL35A) 1 Harness,Main(ModelOL25B) 1 Lead,GRNNEL15.0"(ModelOL35A) 1 Lead,GRNNEL26.0"(ModelOL35A) 1 Lead,BLU/BLK23.0"(ModelOL358) 1 Lead,BLK27.0"(ModelOL35B) 1 Harness,Ready Light(ModelOL35B) 2 TerminalHousing(ModelOL35B) 1 Lead,BLKlO.O"(ModelOL25B) 1 Lead,BLKlO.O"(ModelOL25B) 1 Lead,WHT9.0"(ModelOL25B) 1 Lead,WHT9.0"(ModelOL25B) 1 LampAssy,Ready (ModelOL25B) 2 TerminalHousing(ModelOL25B) I. I 1 ’ I 31 (Revised December1999) Part I

Screw, PNH SLTD#6-32x.312" Bracket Screw, PHH SLTD w/serr#8-32x.38" Grommet Knob BracketComponent Mounting Screw,TRH PHH#8-32x.375" Plate Screw, PHH SLTD w/serr#8-32x.38" Relay (120V) Relay (240V) Screw, PNH SLTD#6-32x.375" LampAssy,Ready(ModelRL35B only) Terminal Housing (Model RL35B only) Decal,READY(ModelRL35Bonly) Switch, Rotary OFF/LO/MED/HI (Models with High Heat Warmer) Switch, Rotary ON/OFF(Oneless used on models with High Heat Warmer) Nut, Hex.375-24" Knob,OFF/LO/MED/HI (Models with High Heat Warmer) Knob,ON/OFF(Oneless used on models with High Heat Warmer) Lamp (120V) Lamp(240V) Switch,ON/OFF Switch,MOMENTARYSTART Decal, Grounding (Model RLA only) Decal,lNDlVlDUALClRClJlTlNFO Screw, Harness Grounding Terminal Block,2-pole RED/BLK Terminal Block,2-pole WHT/BLK Terminal Block,3-pole RED/WHT/BLK Screw,TRH PHH #8-32x.50" (Continued) 33 (Revised December1999) Part I

23 05113.0000 1 Harness, Main (Model RL)(Models with High Heat Warmer) 22360.0000 1 Harness, Main (Model RL)(Models without High Heat Warmer) 05117.0000 1 Harness, Main (Models RLA & RLB)(Models with High Heat Warmer) 05117.0002 1 Harness, Main (Models RLA & RLB)(Models without High Heat Warmer) 24 21016.0028 1 25 21016.0029 I 26 03820.0000 1 27 22354.0000 1 28 22362.0000 1 29 21016.0155 1 30 21016.0007 1 Lead, BLK 27.0” Lead, BLU/BLK 23.0” Lead, Solenoid Jumper Wire, Ground (Model RLA) Harness, Ready Light (Model RL35B) Lead, BLK 27.0” Lead, BLU/BLK 23.0” 35 (Revised December 1999) Part I

J ” I BUNN@ ELECTRICAL& OPERATlNGCONTROLS(ModelOT) OL,RL OT,RT 17 18 16 - : 19 20 4 5 36 (Revised December1999) Part I

21 01668.0000 2 22 05186.0000 1 DESCRIPTION Thermostat Assy (Includes items 2 & 3) Screw, PNH SLTD #6-32 x .312” Grommet Knob Bracket, Component Mounting Screw, PHH SLTD w/serr #8-32 x .38” Nut, KEPS 58-32 Timer, 120V Timer, 240V Timer, 120V (OT35 w/Grinder Interface) Screw, PHH SLTD wlserr #8-32 x .38” ’ Fastener, “J” Type #8-32 Clip, Cable Lamp (120V) Lamp (240V) Switch, ON/OFF Switch, MOMENTARY START Bushing, Strain Relief (Model OT15 only) Washer, Strain Relief (Model OTI 5 only) Decal, INDIVIDUAL CIRCUIT INFO (Not Applicable to model OTI 5) Screw, Harness Grounding Terminal Block, 2-pole WHT/BLK Terminal Block, 3-pole RED/WHT/BLK Screw, PNH SLTD #8-32 x .75” Fastener, “J” Type #8-32 Cap, Plastic (OT35 w/Grinder Interface) Harness (OT35 w/Grinder Interface) Switch, Control Board (OT35 w/Grinder Interface) Nut, KEPS #6-32 Spacer (OT35 w/Grinder Interface) Decal, Switch (OT35 w/Grinder Interface) Decal, BUNN-0-MATIC (OT35 w/Grinder Interface) Wire Nut, ORN (OT35 w/Grinder Interface) Harness (OT35 w/Grinder Inter-face) (Continued) 37 (Revised December 1999) Part I

01869.0000 1 Harness, Main (Model OT35) 22476.0000 1 Harness, Main (OT35 w/Grinder Interface) 24 04513.0000 1 PowerCord(OT15only) 25 06064.0000 1 Decal, Cord Warning (OT15 only) 26 21016.0028 1 Lead, BLK 27.0" 27 21016.0029 1 Lead, BLUlBLK23.0" ELECTRlCAL&OPERATlNGCONTROLS(ModelOT) \ .” , 39 (Revised Decemberl999) Part I

b BUlilN@ ELECTRICAL&OPERATING CONTROLS(ModelRT) OL,RL OT,RT 15 16, 14 . 7 8 IO 12 11 7 13 IO P1662 40 (Revised Decemberl999) Part I

ITEM 1 5 6 7 8 9 10 11 12 13 14 15 16 17 PARTNO. 04314.0001 02328.0003 07073.0000 00720.0000 04752.0000 01315.0000 01519.0000 00970.0000 02235.1000 02235.1009 01315.0000 00912.0000 01053.0000 01052.0000 00990.0000 01055.0000 01054.0000 01088.0000 01089.0000 01186.0000 01061 .OOOO 00824.0000 00985.0000 01309.0000 01106.0001 01106.0000 07038.0000 01370.0000 00912.0000 QTY. 1 1 1 1 1 2 2 2 1 1 2 2 1 4 4 1 4 1 1 1 1 1 1 I 1 1 1 2 2 The following items are not illustrated 18 21016.0028 1 19 21016.0029 1 20 01825.0000 1 01825.0002 1 22430.0000 1 22430.0002 1 01826.0000 1 ‘4 01826.0002 1 21 22354.0000 1 DESCRIPTION Thermostat Assy (Includes items 2 & 3) Screw, PNH SLTD #6-32 x .312" Grommet Knob Bracket, Component Mounting Screw, TRH PNH #B-32 x .375" Lockwasher #8 Nut, KEPS #B-32 Timer, 120V Timer, 240V Screw, TRH PNH #B-32 x .375" Fastener, "J" Type #B-32 Switch, Rotary OFWLOIMEDIHI (Models with High Heat Warmer) Switch, Rotary ON/OFF (One less used on models with High Heat Warmer) Nut, Hex .375-24" Knob, OFF/LO/MED/HI (Models with High Heat Warmer) Knob, ON/OFF (One less used on models with High Heat Warmer) Lamp (120V) Lamp (240V) Switch, ON/OFF Switch, MOMENTARY START Decal, Grounding (Model RTA only) Decal, INDIVIDUAL CIRCUIT INFO Screw, Harness Grounding Terminal Block, 2-pole RED/BLK Terminal Block, 2-pole WHT/BLK Terminal Block, 3-pole REDNVHTIBLK Screw, PNH SLTD f8-32 x .75" Fastener, "J" Type #B-32 Lead, BLK 27.0" Lead, BLU/BLK 23.0" Harness, Main, 120V (Models RT & RTF) (Models with High Heat Warmer) Harness, Main, 120V (Models RT & RTF) (Models without High Heat Warmer) Harness, Main, 120V (Model RT Galley) (Models with High Heat Warmer) Harness, Main, 120V (Model RT Galley) (Models without High Heat Warmer) Harness, Main, 240V (Model RTA) (Models with High Heat Warmer) Harness, Main, 240V (Model RTA) (Models without High Heat Warmer) Wire, Ground (Model RTA) 41 (Revised December 1999) Part I

Funnel, SST w/Orange Handle (7.625” Dia)(lncludes items 2 thru 5) Funnel, Smoke Plastic (7.25” Dia)(lncludes items 6 & 7) Funnel, Smoke Plastic (7.625” Dia)(lncludes items 6 & 7) Basket, Filter Funnel w/Decals (Includes items 6 & 7) Handle Kit, Black (Includes screw) Handle Kit, Orange (Includes screw) Screw, Round Head #I O-32 x 1.50” Funnel Tip Kit Decal, WARNING-REMOVE FUNNEL Decal, WARNING-HOT LIQUID Adapter, Funnel (For use with 7.25” Dia Funnel) 43 (Revised December 1999) Part I

00305.0000 ....................... 21 00310.0000 ....................... 21 00310.0002 ....................... 21 00398.0002 .................. 21,23 00400.0001 ....................... 17 00402.0001 ............. 19,21,23 00406.0001 ............... 9,11,17 00432.0001 ....................... 19 00458.0001 ....................... 19 00459.0001 ....................... 19 00462.0001 ..................... .5,7 00463.0000 ....................... 19 00484.0001 ...................... .23 00606.0000 .............. 5,7,9,11 00656.0000 ............. .5,7,9,11 00658.0000 .............. 5,7,9,11 00688.0000 .................... 7,ll 00715.0000 ............ 5,9,29,37 00720.0000 ...... ..29,33,37,4 1 00751.0000 ............. .5,7,9,11 00752.0000 .............. 5,7,9,11 00754.0001 .............. 5,7,9,11 00774.0000 ................... .9,11 00803.0000 ........................ .7 00804.0000 ...................... .25 00822.0000 ....................... 11 00823.0000 .............. 5,7,9,11 00824.0000 ............. 29,33,41 00831.0000 .............. 5,7,9,11 00875.0000 .......... 9,11,23,37 00908.0000 ............. 13,15,17 00909.0000 ...................... .27 00910.0000 ....................... 27 00912.0000 ......... .7,25,37,41 00916.0000 .................. 25,27 00917.0000 .............. 5,7,9,11 00927.0000 ........... .5,9,29,37 00929.0001 ............. 13,15,17 00932.0000 ...................... .I5 00935.0001 ....................... 15 00942.0000 .................. 15,17 00943.0000 .................. 13,17 00946.0000 ....................... 13 00970.0000 ............. 13,15,25 00970.0000 ............. 27,37,41 00971.0000 .............. 5,7,9,11 00973.0000 ....................... 37 00978 .OOOO .............. 5,7,9,11 00985.0000 ...... ..29,33,37,4 1 00990.0000 .................. 33,41 01031.0000 ....................... 43 01052.0000 ................. .33,41 01053.0000 .................. 33,41 PARTNO. PAGENO. 01054.0000 .................. 33,41 01055.0000 .................. 33,41 01061.0000 ........ 29,33,37,41 01075.0000 .................. 15,17 01082.0000 .................. 15,17 01085.0002 .................. 19,21 01088.0000. ..25,29,33,37,4 1 01089.0000 . ..25,29,33,37,4 1 01100.0000 ................ ..19.2 1 01101.0000 ................ ..19.2 1 01104.0000 ................ ..19.2 1 01106.0000 ........ 29,33,37,41 01106.0001 ............. 29,33,41 01111.0000 .................. 19,21 01111.0002 .................. 19,21 01116.0000 .................. 19,21 01117.0000 ....................... 21 01119.0000 ....................... 19 01138.0000 ....................... 19 01139.0000 ....................... 19 01143.0000 .................. 25,27 01154.0001 ...................... .21 01155.0000 ...................... .21 01161.0000 ....................... 27 01171.0001 ....................... 21 01186.0000. ..25,29,33,37,4 1 01189.0000 .................. ..7.2 5 01197.0000 ....................... 27 01198.0000 ...................... .27 01227.0000 ....................... 25 01303.0000 .................. 25,27 01304.0000 ....................... 27 01309.0000 ........ 29,33,37,41 01311.0000 .............. 5,7,9,11 01315.0000 .............. 5,7,9,11 01315.0000 ............. 29,33,41 01317.0000 .................. 29,33 01318.0000 ................... .9,11 01320.0000 .............. 5,7,9,11 01322.0000 ....................... 11 01323.0000 ...................... .25 01326.0000 ....................... 21 01327.0000 ....................... 19 01331.0000 ......... 5,7,9,11,29 01331.000? ....................... 43 01332.0000 ....................... 27 01370.0000 ............. 15,37,41 01371.0000 .................... 7,25 01377.0000 .................... 7,25 01502.0000 ....................... 19 01503.0000 ...................... .27 01512.0000 ......... 5,7,9,11,21 01516.0000 ......... 5,7,9,11,25 01519.0000 ....................... 41 PARTNO. PAGENO. 01522.0000 ...................... .I5 01527.0000 ....................... 13 01532.0000 .................. 19,23 01533.0002 ...................... .37 01666.0000 .................. 29,37 01668.0000 ....................... 37 01825.0000 ..................... ..4 1 01825.0002 ..................... ..4 1 01826.0000 ...................... .41 01826.0002 ...................... .41 01860.0000 .................. 25,29 01860.0001 .................. 25,29 01869.0000 ...................... .39 01870.0000 ...................... .39 01907.0000 ...................... .27 01928.0000 .................. 15,17 01951.0000 .................. 25,27 01951 .OOOl ....................... 25 01975.0000 .................. 19,21 01977.0000 .................. 29,33 02056.0000 .................. 29,33 02235.1000 .................. 37,41 02235.1009 .................. 37,41 02235.1036 ...................... .37 02308.0000. ..13,19,29,33,3 7 02310.0000 .............. 5,7,9,11 02328.0000 .................. 29,33 02328.0003 ....... .29,33,37,41 02434.1000 ......... 5,7,9,11,15 02713.0000 ....................... 13 02745.0000 ............... . ....... 13 02746.0000 ....................... 13 02747.0000 ....................... 13 02755.1000 ....................... 13 02756.1000 ....................... 13 02775.0000 ....................... 13 02817.0000 .................. 25,27 02858.0000 ...................... .23 03311.0000 ...................... .27 03312.0000 ...................... .27 03408.0002 ...................... .43 03409.0002 ....................... 43 03652.0000 ..... . ................ .25 03656.0000 .................. 25,27 03697.0000 .................. 25,27 03807.0000 ....................... 13 03810.1000 ...................... .25 03811.1000 ......................... 7 03813.0000 ....................... 25 03820.0000 ............. 19,31,35 03989.0000 ....................... 13 04129.0000 ....................... 17 04221.0000 ....................... 17 04236.1000 ....................... 17 PARTNO. PAGENO. 04243.0000 ................. -31 ,33 04314.0001 ........ 29,33,37,41 04513.0000 .................. 29,39 04626.0000 .................. 15,17 04636.1000 ....................... 17 04637.1000 ....................... 17 04752.0000 .................. 37,41 04831.0000 ....................... 13 04970.0000 ...................... .I1 04974.0000 ......................... 9 05000.0000 .................. 29,33 05005.0000 .................... 7,ll 05011.0000 ....................... 23 05014.0000 ...................... 5,9 05016.0000 .............. 5,7,9,11 05017.0000 .............. 5,7,9,11 05023.1000 ........................ .9 05025.1000 .................... 9,ll 05025.0002 ....................... 11 05027.1000 ....................... 11 05032.1000 ....................... 13 05033.1000 ....................... 13 05036.1000 ....................... 13 05037.1000 ....................... 13 05038.1000 ....................... 13 05039.0000 ....................... 13 05067.0000 ....................... 15 05070.0000 ....................... 15 05078.0000 ....................... 13 05082.0000 ....................... 13 05084.0000 ...................... .I3 05089.0000 ................. .29,33 05092.1000 ......................... 7 05096.0000 ....................... 19 05101.0000 ......................... 7 05102.0000 ........................ .5 05102.0001 ......................... 5 05103.1000 ...................... 5,7 05103.1001 ......................... 5 05103.1002 ..................... .5,7 05105.0000 ......................... 5 05106.0000 ..................... ..I 3 05106.0001 ...................... .I3 05108.0000 ...................... .I3 05110.1000 ....................... 13 05112.0000 ....................... 31 05113.0000 ...................... ,35 05116.0000 ....................... 31 05117.0000 ....................... 35 05117.0002 ...................... .35 05118.0000 ...................... .31 05119.0000 ....................... 19 05177.0000 ....................... 37 05178.0000 ...................... .37 44 (Added December1999) Part I

05187.0000 ....................... 37 05194.0000 ......................... 9 05212.0000 ................. .25,27 05515.0000 ....................... 17 05518.0000 ....................... 17 05533.0000 ....................... 17 05533.0002 ....................... 17 05553.0000 ....................... 17 05682.1000 ....................... 17 05683.1000 ....................... 17 05684.0000 ....................... 17 05717.0000 ..................... ..2 5 06064.0000 .................. 31,39 06335.0004 ...................... .29 07038.0000 ...... ..29,33,37,4 1 07073.0000 ...... ..29,33,37,4 1 10006.0000 ........................ .7 10007.0000 ...................... .25 10277.0000 ....................... 11 10278.0000 ........................ .9 11440.0011 ...................... .25 12364.0000 .............. 5,7,9,11 12687.0000 ....................... 17 12688.0000 ...................... .I7 12689.1000 ....................... 17 12747.0000 ....................... 15 12915.0000 ...................... .23 12984.0003 ...................... .33 12984.0004 ...................... .29 13042.0001 .................. 25,27 13053.0000 ....................... 23 13054.0000 ...................... a23 13055.0000 ...................... .23 13056.0000 ....................... 23 13057.0000 ....................... 23 13058.0000 ...................... .23 13059.0000 ....................... 23 13060.0000 ...................... .23 13061.0000 ...................... .23 20201.4300 ....................... 19 20201.5600 ....................... 23 20211 .OlOO ....................... 17 20217.0000 ....................... 43 20217.0001 ....................... 43 20244.1000 ............. ..a.......4 3 20244.1001 ....................... 43 20247.0000 ...................... .43 20526.1195 ...................... .21 20528.1195 ....................... 21 20554.0001 ....................... 21 . . ,&.$ 20581.0001 ....................... 19 20583.0002 ...................... a43 20726.0000 ....................... 23 20747.0000 ...................... .23 20749.0000 .................. 29,33 20768.0000 ....................... 13 20771.0001 .................. 29,33 20942.1000 ....................... 13 21012.0062 ...................... .31 21012.0064 ...................... .31 21012.0066 ...................... .31 21012.0067 ....................... 31 21016.0007 .................. 31,35 21016.0011 ...................... .31 21016.0027 ....................... 31 21016.0028 ........ 31,35,39,41 21016.0029 ........ 31,35,39,41 21016.0122 ....................... 17 21016.0155 .................. 31,35 21180.0000 .................. 19,21 21181.0000 .................. 19,21 22249.0000 .................. 19,21 22293.0000 .................. 19,21 22351.1000 .................... 7,ll 22354.0000 .................. 35,41 22356.0000 ...................... .31 22357.0002 ....................... 11 22357.0003 ........................ .9 22358.1000 ...................... 5,9 22358.1001 ...................... 5,9 22360.0000 ....................... 35 22362.0000 .................. 31,35 22399.0000 ....................... 31 22428.0000 ....................... 11 22430.0000 ....................... 41 22430.0002 ....................... 41 22476.0000 ....................... 39 23721.0000 .................. 19,21 23820.0000 .................. 19,21 26723.0000 ...................... .43 27657.0000 ...................... .37 28479.0000 .................. 19,21 28480.0000 .................. 19,21 28481.0000 .................. 19,21 28554.0000 ...................... .43 29329.1000 .................. 15,17 29351.0000 ....................... 43 32423.0000 ....................... 11 32424.0000 ......................... 7 , ) ' i PAGENO. PARTNO. PAGENO. 45 (Added Decemberl999) Part I

OT & RT, Serial Numbers RT00005364 and up with Digital Timer

(S/N RT00005364 & up) BUNN-O-MATIC CORPORATION POST OFFICE BOX 3227 SPRINGFIELD, ILLINOIS 62708-3227 PHONE: (217) 529-6601 FAX: (217) 529-6644 www.bunnomatic.com OPERATING & SERVICE MANUAL To ensure you have the latest revision of the manual or to obtain the illustrated parts catalog, please visit the Bunn-O-Matic website, at www.bunn.com. This is absolutely FREE, and the quickest way to obtain the latest catalog and manual updates. Contact Bunn-O-Matic Corporation at 1-800-286-6070 to obtain a paper copy of the required Illustrated Parts Catalog mailed via U.S. Postal Service. 32440.0000C 01/08 ©1999 BUNN-O-MATIC CORPORATION Part II

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 years parts and 1 year labor. 4) Grinding burrs on coffee grinding equipment to grind coffee to meet original factory screen sieve analysis: parts and labor for 3 years or 30,000 pounds of coffee, whichever comes first. These warranty periods run from the date of installation BUNN warrants that the equipment manufactured by it will be commercially free of defects in material and workmanship existing at the time of manufacture and appearing within the applicable warranty period. This warranty does not apply to any equipment, component or part that was not manufactured by BUNN or that, in BUNN’s judgment, has been affected by misuse, neglect, alteration, improper installation or operation, improper maintenance or repair, damage or casualty. This warranty is conditioned on the Buyer 1) giving BUNN prompt notice of any claim to be made under this warranty by telephone at (217) 529-6601 or by writing to Post Office Box 3227, Springfield, Illinois 62708-3227; 2) if requested by BUNN, shipping the defective equipment prepaid to an authorized BUNN service location; and 3) receiving prior authorization from BUNN that the defective equipment is under warranty. THE FOREGOING WARRANTY IS EXCLUSIVE AND IS IN LIEU OF ANY OTHER WARRANTY, WRITTEN OR ORAL, EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, ANY IMPLIED WARRANTY OF EITHER MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. The agents, dealers or employees of BUNN are not authorized to make modifications to this warranty or to make additional warranties that are binding on BUNN. Accordingly, statements by such individuals, whether oral or written, do not constitute warranties and should not be relied upon. If BUNN determines in its sole discretion that the equipment does not conform to the warranty, BUNN, at its exclusive option while the equipment is under warranty, shall either 1) provide at no charge replacement parts and/or labor (during the applicable parts and labor warranty periods specified above) to repair the defective components, provided that this repair is done by a BUNN Authorized Service Representative; or 2) shall replace the equipment or refund the purchase price for the equipment. THE BUYER’S REMEDY AGAINST BUNN FOR THE BREACH OF ANY OBLIGATION ARISING OUT OF THE SALE OF THIS EQUIPMENT, WHETHER DERIVED FROM WARRANTY OR OTHERWISE, SHALL BE LIMITED, AT BUNN’S SOLE OPTION AS SPECIFIED HEREIN, TO REPAIR, REPLACEMENT OR REFUND. In no event shall BUNN be liable for any other damage or loss, including, but not limited to, lost profits, lost sales, loss of use of equipment, claims of Buyer’s customers, cost of capital, cost of down time, cost of substitute equipment, facilities or services, or any other special, incidental or consequential damages. BrewWISE, BUNN Gourmet Ice, BUNN Pour-O-Matic, BUNN, Bunn-OMatic, Bunn-O-Matic, BUNNlink, BUNNserve, BUNN Espress, DBC, Dr. Brew, Dual, EasyClear, EasyGard, Easy Pour, FlavorGard, Gourmet Ice, Gourmet Juice, High Intensity, IMIX, Infusion Series, Legendary for Quality, The Mark of Quality in Beverage Equipment Worldwide, My Café, Power- Logic, Safety-Fresh, Single, Smart Funnel, Smart Hopper, Soft Heat, SplashGard, System III, ThermoFresh, AXIOM, Bever- age Profit Calculator, Beverage Bar Creator, BrewLOGIC, BrewMETER, BrewWIZARD, BUNNSERVE, BUNNsource, Coffee At Its Best, Coffee Spot, Cool Froth, Digital Brewer Control, Earth-1st, Earth 1st, Earth First, Intellisteam, Nothing Brews Like a BUNN, Pouring Profits, Pulse Wave, Quality Beverage Equipment Worldwide, Scale-Pro, Signature Series, Silver Series, Smart Heat, SmartWAVE, Tea At Its Best, The Horizontal Red Line, Titan, Ultra, are either trademarks or registered trademarks of Bunn-O-Matic Corporation. Part II

Electrical Requirements ..............................................4 Plumbing Requirements .............................................4 Initial Set-Up ...............................................................5 Adjusting Brew Volumes .............................................6 Operating Controls ......................................................6 Coffee Brewing ............................................................7 Cleaning ......................................................................7 Troubleshooting ..........................................................8 Service ........................................................................12 Wiring Diagrams .........................................................28 INTRODUCTION This equipment will brew a half-gallon batch of coffee into an awaiting decanter at the press of a button. The OT has two and the RT has five warmers to keep the beverage at the right temperature, on the RT one of which is capable of heating water to boiling. The brewer is only for indoor use on a sturdy counter or shelf. 32440 010308 00656.0000 00831.0000 00658.0000 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. 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 use near combustibles. FAILURE TO COMPLY RISKS EQUIPMENT DAMAGE, FIRE, OR SHOCK HAZARD READ THE ENTIRE OPERATING MANUAL BEFORE BUYING OR USING THIS PRODUCT THIS APPLIANCE IS HEATED WHENEVER CONNECTED TO A POWER SOURCE 00831.0000F 3/98 ©1998 BUNN-O-MATIC CORPORATION 37881.0000 This equipment must be installed to comply with the International Plumbing Code of the International Code Council and the Food Code Manual of the Food and Drug Adminis- tration (FDA). For models installed outside the U.S.A., comply with the applicable Plumbing /SanitationCode. Part II

MODELS OT15 & 20 require 2-wire, grounded service rated 120 volts ac, 15 or 20 amp respectively, single phase, 60 Hz. Model 15 has an attached cordset. MODELS OT35 & RT35 require 3-wire, grounded service rated 120/208 or 120/240 volts ac, 20 amp, single phase, 60 Hz. Electrical Hook-Up Model OT15 has an attached cordset. Models OT20, OT35, & RT35, proceed as follows: 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. 3. Remove the front panel beneath the sprayhead and rotate the control thermostat knob fully counterclockwise to the “OFF” position and re- place the panel. 4. Remove the rear panel, feed the cord through the strain relief, and connect it to the terminal block. 5. Connect the brewer to the power source and verify the voltage at the terminal block before proceeding. Replace the rear panel. 6. If plumbing is to be hooked-up later be sure the brewer is disconnected from the power source. If Plumbing has been hooked-up, the brewer is ready for Initial Set-Up. PLUMBING REQUIREMENTS This brewer must be connected to a cold water system with operating pressure between 20 and 90 psi 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 to reduce it to 50 psi. The water inlet fitting is 1/4” flare. NOTE - Bunn-O-Matic recommends 1/4” copper tubing for installations of less than 25 feet and 3/8” for more than 25 feet from the 1/2” water supply line. A tight coil of copper tubing in the water line will facilitate moving the brewer to clean the counter top. Bunn-O- Matic does not recommend the use of a saddle valve to install the brewer. The size and shape of the hole made in the supply line by this type of device may restrict water flow. MODELS OTA, RTA & RT35B require 2-wire, grounded ser- vice rated 240 volts ac or 200 volts ac, 20 amp single phase, 50 Hz. MODEL RT requires 2-wire, grounded service rated 120 volt ac, 25 amp single phase, 50 Hz. P1709 32440 010308 L2 RED L1 BLACK 200, 230 or 240V A.C. This equipment must be installed to comply with the International Plumbing Code of the International Code Council and the Food Code Manual of the Food and Drug Administration (FDA). For models installed outside the U.S., you must comply with the applicable Plumbing/Sanitation Code for your area. Part II

2. Rotate the control thermostat knob fully counter- clockwise to the “OFF” position and replace the panel. 3. Insert an empty funnel into the funnel rails. 4. Place a decanter containing a small amount of water on the warmer beneath the funnel. 5. Connect the brewer to the power source, place the On/Off brew station warmer switch the up- per position, and momentarily press the start switch. Water will begin flowing into the tank. When water stops flowing into the tank, initiate a second and a third brew cycle. During this third brew cycle the tank will fill to its capacity and the excess will flow from the spray- head, out of the funnel, and into the decanter. NOTE - The On/Off brew station warmer switch must be in the upper position to initiate and complete a brew cycle. 6. Place the On/Off brew station warmer switch in the lower position. 7. Disconnect the brewer from the power source. 8. Remove the front panel. 9. Rotate the control thermostat knob fully clock- wise to the “ON” position and replace the front panel. 10. Connect the brewer to the power source and wait approximately twenty minutes for the water in the tank to heat to the proper temperature. Some water will drip from the funnel during this time; this is due to expansion and should not occur thereafter. 11. Place an empty decanter under the funnel. 12. Place the On/Off brew station warmer switch in the upper position and momentarily press the start switch. Empty the decanter after water has stopped flowing from the funnel. 13. Allow the water in the tank to reheat to the proper temperature. 14. Place an empty decanter on the warmer and press the start switch. Check the water volume in the decanter after water has stopped flowing from the funnel. It should be 64 ounces. 15. If not, adjust the Timer as described in Adjusting Brew Volumes (page 6) 16. Repeat steps 13-15 until 64 oz water volume is achieved. P1687 P1690 32440 070700 PLUMBING REQUIREMENTS (Cont.) Plumbing Hook-Up Model OT15 has an attached water strainer, proceed to step 2. Models OT20, OT35, & RT35, proceed as follows: 1. Remove the rear panel and bottom pan. Run the long piece of tubing from the strainer (supplied) under the brewer and attach it to the water inlet fitting on the solenoid. Reinstall the bottom pan and rear panel. 2. Flush the water line and securely attach it to the 1/4” flare fitting on the strainer. 3. Turn on the water supply. INITIAL SETUP CAUTION - The brewer must be disconnected from the power source throughout the initial set-up, except when specified in the instructions. Part II

A. On/Off Brew Station Warmer Switch Placing the switch in the upper position supplies power to the brew station warmer and enables brew- ing. Placing the switch in the lower position cuts power to the brew station warmer and stops brewing. Stopping a brew cycle after it has been started will not stop the flow of water into the funnel until the tank syphons down to its proper level. NOTE - The On/Off brew station warmer switch must be in the upper position to initiate and complete a brew cycle. B. On/Off Brew Station Warmer Indicator Lamp Glows whenever the On/Off brew station warmer switch is in the upper position showing that the warmer is on and that the automatic brew cycle can be started. C. Start Switch Starts a brew cycle when the On/Off brew station warmer switch is in the upper position. D. Upper Warmer Switch Placing the switch in the upper position supplies power to the upper warmer. Placing the switch in the lower position cuts power to the upper warmer. E. Upper Warmer Indicator Lamp Glows whenever the upper warmer switch is in the upper position showing that the warmer is on. F. Left Rear Warmer Rotary Switch Rotating the knob to the “ON” position supplies power to the left rear warmer. Rotating the knob to the “OFF” position cuts power to the left rear warmer. G. Left Front Warmer Rotary Switch Rotating the knob to the “ON” position supplies power to the left front warmer. Rotating the knob to the “OFF” position cuts power to the left front warmer. H. Right Front Warmer Rotary Switch Rotating the knob to the “ON” position supplies power to the right front warmer. Rotating the knob to the “OFF” position cuts power to the right front warmer. I. Right Rear Warmer Rotary Switch Rotating the knob to the “ON” position supplies power to the right rear warmer. Rotating the knob to the “OFF” position cuts power to the right rear warmer. 32440 121699 ADJUSTING BREW VOLUMES CAUTION - Disconnect the power source 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. 1. Modifying batch sizes. To modify a batch volume, first check that the SET/LOCK switch is in the “SET” posi- tion on the circuit board. To increase a batch size. Press and hold the START or BREW switch until three clicks are heard. Release the switch (Failure to release the switch within two seconds after the third click causes the volume setting to be aborted and previous volume setting will remain in memory) and press it again one or more times. Each time the switch is pressed, two seconds are added to the brew time period. Allow the brew cycle to finish in order to verify that the desired volume has been achieved. To decrease a batch size. Press and release the START or BREW switch once for every two-second interval to be removed from the total brew time period; then immediately press and hold down the START or BREW switch until three clicks are heard. Release the switch. (Failure to release the switch within two seconds after the third click causes the volume setting to be aborted and previous volume setting will remain in memory). Allow the brew cycle to finish in order to verify that the desired volume has been achieved. 2. Setting batch sizes. To set a batch volume, first check that the SET/LOCK switch is in the “SET” position on the circuit board. Press and hold the START or BREW switch until three distinct clicks are heard, and then release the switch. (Failure to release the switch within two seconds after the third click causes the volume setting to be aborted and previous volume setting will remain in memory). View the level of the liquid being dispensed. When the desired level is reached, turn the ON/OFF switch to “OFF” (lower). The brewer remembers this volume and will continue to brew batches of this size until the volume setting procedure is repeated. NOTE: When brewing coffee, batch volumes will decrease due to absorption by the coffee grounds. 3. Setting programming disable feature. If it becomes necessary to prevent anyone from changing brew times once programmed, you can set the SET/LOCK switch to the “LOCK” position. This will prevent any program- ming to be done until switch is once again placed in the “SET” position. Part II

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. MODEL RT D E A B C F G A B C H I P1687 P1688 NEEDLE VALVE ADJUSTMENT (Models with Faucet) This brewer is equipped with a unique faucet system allowing hot water to be drawn-off a cup-at-a-time for instant beverage needs, even while brewing. WARNING - Disconnect the brewer from the power source before the removal of any panel or replacement of any component. ADJUSTMENT 1. Disconnect the brewer from the power source and remove the front inspection panel located beneath the brew funnel. 2. Adjust the needle valve as required to increase or decrease the pressure of the hot water flowing from the faucet. Turn the propeller on the valve in a counterclockwise direction to increase the flow and in a clockwise direction to decrease the flow. 3. Reconnect the brewer to the power source and allow the water in the tank to heat to the proper temperature before operating the brewer. 32440 121699 CLEANING 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. 2. Check and clean the sprayhead. The sprayhead holes must always remain open. 3. With the sprayhead removed, insert the deliming spring (provided) all the way into the sprayhead tube. When inserted properly, no more than two inches of spring should be visible. Saw back and forth five or six times. Then, repeat this step for the air vent tube. NOTE - In hard water areas, this may need to be done daily. It will help prevent liming problems in the brewer and takes less than a minute. MODEL OT Part II

Brew cycle will not start. Probable Cause 1. No power or incorrect voltage 1. No water 2. Water Strainer 3. Flow Control Remedy (A) Connect the brewer to the power source. (B) Check the terminal block for the proper voltages. (C) Check circuit breaker/fuse. Check plumbing and shut-off valves. (A) Direction of flow arrow must be pointing towards brewer. (B) Remove the strainer and check for obstructions. Clear or replace. (A) Direction of flow arrow must be pointing away from the solenoid. (B) Remove the control and check for obstructions. Clear or replace. 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�person- nel. •� All�electric�components�have�120�volt�ac�voltage�on�their�terminals.�Shorting�of�terminals�or�the�application� of external voltages may result in equipment failure. •� Intermittent�operation�of�electronic�equipment�is�unlikely.�Component�failure�will�normally�be�permanent.� If an intermittent condition is encountered, the cause will likely be a switch contact or a loose connection at a terminal or crimp. •� Solenoid�removal�requires�interrupting�the�water�supply�to�the�valve.�Damage�may�result�if�solenoids�are� energized for more than ten minutes without a supply of water. •� The�use�of�two�wrenches�is�recommended�whenever�plumbing�fittings�are�tightened�or�loosened.�This�will� help to avoid twists and kinks in the tubing. •� Make�certain�that�all�plumbing�connections�are�sealed�and�electrical�connections�tight�and�isolated. •� This�brewer�is�heated�at�all�times�unless�disconnected�from�the�power�source.�Keep�away�from�combus- tibles. WARNING •� Exercise�extreme�caution�when�servicing�electrical�equipment. •� Disconnect�the�brewer�from�the�power�source�when�servicing,�except�when�electrical�tests�are�specified. •� Follow�recommended�service�procedures •� Replace�all�protective�shields�or�safety�notices 32440 121699 Part II