Bunn H5X, DV, H5E User Manual

How it Works Log In / Sign Up

• Buy Points
• How it Works
• FAQ
• Contact Us
• Questions and Suggestions
• Users

Bunn Loading... F

• FPG7
• FPG-23
• FPG-2A DBC
• FPG-2 DBC4
• FPGA
• FPGA-2 DBC2
• FPGB-2 DBC3
• Froth
• FUNNELTM

G

• G110
• G212
• G2G1
• G2 trifecta5
• G315
• G93
• G9-23
• G9-2 HD4
• G9-2 HD-S5
• G92T
• G9-2TA HD
• G9-2T DB2
• G9-2T DBC6
• G9-2T HD6
• G9-2T HD DBC
• G9 HD3
• G9T HD6
• G9WD3
• G9WD-RH5
• G9WD-RH Series
• GALLON
• GMB-PS2
• Gourmet Ice
• GPR3
• GPR-DBC
• GPR DBC-DV
• GPR-FF2
• GR4
• GR102
• GR10 Series
• GR-8
• GRX5
• GRX-B3
• GRX-W3
• G Series
• GVH-1
• GVH-2
• GVH-3

H

• H10X5
• H3X
• H5E8
• H5EA PC
• H5E-DV
• H5E-DV PC6
• H5E Element
• H5E H5X
• H5M4
• H5-PC
• H5X10
• H5X Element
• HB2
• HC-13
• HC-26
• HC-2 HC-3
• HC-37
• HG
• HIGH VOLUME GRINDER
• Home Brewer
• HOME MODEL NHB
• HT
• HVG3
• HV ICB
• HW2
• HW2A3
• HWB

I

• IC2
• IC2B2
• IC35
• IC3B4
• IC3 & IC3B
• ICB5
• ICBA5
• ICBA SH
• ICBB5
• ICBC5
• ICB-DV10
• ICB DV Tall2
• ICB SH4
• ICB SH TWIN
• ICB Tall2
• ICB-TWIN8
• ICB Twin Infusion
• ICB Twin SH5
• ICB-TWIN TALL4
• ICD33
• ICD-3S
• IG 4406
• IG 4408
• IGV 4408
• IGV 6506
• IGV 6508

Loading... Loading... Nothing found H5E Illustrated Parts Catalog29 pgs1.61 Mb0 Installation & Operating Manual28 pgs2.44 Mb0 Operating & Service Manual22 pgs3.2 Mb0 Operating & Service Manual22 pgs723.22 Kb0 Specification2 pgs368.26 Kb0 User Manual25 pgs3.2 Mb1 User Manual2 pgs294.81 Kb0 User Manual 29 pgs207.01 Kb0 Table of contents Loading... Bunn H5X, DV, H5E User Manual ... Bunn User Manual Download

Specifications and Main Features

Frequently Asked Questions

User Manual

Download Page 1 H10X/H5X H5E/DV PC H5 ELEMENT With Digital Control Board SERVICE MANUAL BUNN-O-MATIC CORPORATION POST OFFICE BOX 3227 SPRINGFIELD, ILLINOIS 62708-3227 PHONE: (217) 529-6601 FAX: (217) 529-6644 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. 42311.0000E 09/13 © 2011 BUNN-O-MATIC CORPORATION Page 2 BUNN-O-MATIC COMMERCIAL PRODUCT WARRANTY Bunn-O-Matic Corp. (“BUNN”) warrants equipment manufactured by it as follows: 1) Airpots, thermal carafes, decanters, GPR servers, iced tea/coffee dispensers, MCP/MCA pod brewers thermal servers and Thermofresh servers (mechanical and digital)- 1 year parts and 1 year labor. 2) All other equipment - 2 years parts and 1 year labor plus added warranties as specified below: a) Electronic circuit and/or control boards - parts and labor for 3 years. b) Compressors on refrigeration equipment - 5 years parts and 1 year labor. c) Grinding burrs on coffee grinding equipment to grind coffee to meet original factory screen sieve analysis - parts and labor for 4 years or 40,000 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, non periodic cleaning and descaling, equipment failures related to poor water quality, damage or casualty. In addition, the warranty does not apply to replacement of items subject to normal use including but not limited to user replaceable parts such as seals and gaskets. 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. 392, A Partner You Can Count On, Air Infusion, AutoPOD, AXIOM, BrewLOGIC, BrewMETER, Brew Better Not Bitter, Brew­WISE, BrewWIZARD, BUNN Espress, BUNN Family Gourmet, BUNN Gourmet, BUNN Pour-O-Matic, BUNN, BUNN with the stylized red line, BUNNlink, Bunn-OMatic, Bunn-O-Matic, BUNNserve, BUNNSERVE with the stylized wrench design, Cool Froth, DBC, Dr. Brew stylized Dr. design, Dual, Easy Pour, EasyClear, EasyGard, FlavorGard, Gourmet Ice, Gourmet Juice, High Intensity, iMIX, Infusion Series, Intellisteam, My Café, Phase Brew, PowerLogic, Quality Beverage Equipment Worldwide, Respect Earth, Respect Earth with the stylized leaf and coffee cherry design, Safety-Fresh, savemycoffee.com, Scale-Pro, Silver Series, Single, Smart Funnel, Smart Hopper, SmartWAVE, Soft Heat, SplashGard, The Mark of Quality in Beverage Equipment Worldwide, ThermoFresh, Titan, trifecta, Velocity Brew, Air Brew, Beverage Bar Creator, Beverage Profit Calculator, Brew better, not bitter., BUNNSource, Coffee At Its Best, Cyclonic Heating System, Daypart, Digital Brew­er Control, Element, Milk Texturing Fusion, Nothing Brews Like a BUNN, Pouring Profits, Signature Series, Sure Tamp, Tea At Its Best, The Horizontal Red Line, Ultra are either trademarks or registered trademarks of Bunn-O-Matic Corporation. The commercial trifecta® brewer housing configuration is a trademark of Bunn-O-Matic Corporation. 2 42311 070913 Page 3 WARNING - Inspection, testing, and repair of electrical equipment should be performed only by qualified service personnel. Disconnect the dispenser fromthe power source when servicing, except when electrical tests are required and the test procedure specifically states to connect the dispenser to the power source. CONTENTS TroubleShooting ............................................................................................ 4 Component Access .......................................................................................7 Electronic Controls ...................................................................................8-11 Limit Thermostat .........................................................................................12 Safety Overflow Switch ............................................................................... 13 Solenoid Valve (Late Models)......................................................................14 Solenoid Valve (Early Models) ....................................................................15 Tank Heater ................................................................................................. 16 Steam Sensor .............................................................................................17 Dispense Valve (PC) ....................................................................................18 Schematic Wiring Diagrams ........................................................................19 3 42311 071310 Page 4 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 electronic components have 120 – 240 volt ac and low voltage dc potential on their terminals. Shorting of terminals or the application of external voltages may result in board failure. • Intermittent operation of electronic circuit boards is unlikely. Board 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 dispenser is heated at all times. Keep away from combustibles. WARNING • Exercise extreme caution when servicing electrical equipment. • Disconnect dispenser from the power source when servicing, except when electrical tests are specified. • Follow recommended service procedures • Replace all protective shields or safety notices FAULT CODES Er1 Temperature Sensor (short) Er2 Temperature Sensor (open) Er3 Refill Fault (continuous refill for 15 minutes) Er4 Heater Fault (heater relay on for 120 minutes) Er5 Boil Thermistor (short) H5X/H10X only) Er6 Boil Thermistor (open) H5X/H10X only) Problem Equipment will not operate. Probable Cause 1. No power or incorrect voltage When a fault occurs (failure to the unit) the POWER lamp will flash to identify the problem (early models) Flashes Description of Failure 1 Temperature Sensor (short) 2 Temperature Sensor (open) 3 Refill Fault (continuous refill for 15 minutes) 4 Heater Fault (heater relay on for 120 minutes) 5 Boil Thermistor (short) H5X/H10X only 6 Boil Thermistor (open) H5X/H10X only Remedy (A) Check the terminal block for the cor­rect voltage. It should be: a.) 100 to 120 volts ac across the black and white terminals for 100 to 120 volt models or, b.) 200 to 240 volts ac across the red and black terminals for 200 to 240 volt models or, c.) 230 volts ac across the red and black terminals for 230 volt models. (B) Check circuit breakers or fuses. 4 42311 071310 Page 5 TROUBLESHOOTING (cont.) Problem Probable Cause Remedy Equipment will not operate (cont.) Automatic refill will not oper­ate after drawing hot water. 2. Safety overflow switch 1. No water 2. Water strainer/flow control 3. Liquid level system 4. Solenoid valve Refer to Service – safety overflow switch for testing procedures. Check plumbing and shut-off valves. (A) Direction of flow arrow must be point­ing towards dispenser. (B) Remove the strainer/flow control and check for obstructions. Clear or replace. Refer to Service – electronic controls for testing procedures. Refer to Service – solenoid valve for test­ing procedures. Water flows into the tank con­tinuously (Dispenser discon- 1. Solenoid valve Refer to Service – solenoid valve for test­ing procedures. nected from power source). Water flows into the tank con­tinuously (Dispenser connect- 1. Liquid level system Refer to Service – electronic controls for testing procedures. ed to power source). Water is cold. 1. Safety overflow switch Refer to Service – safety overflow switch for testing procedures. 2. Limit thermostat Refer to Service – limit thermostat for testing procedures. CAUTION – Do not eliminate or bypass limit thermostat. Use only B.O.M. replacement part #23717.0003. 3. Tank heater Refer to Service – tank heater for testing procedures. 4. Temperature control Refer to Service – electronic controls for testing procedures. 5 42311 071310 Page 6 TROUBLESHOOTING (cont.) Problem Probable Cause Remedy Water boils continuously. 1. Temperature control Refer to Service – electronic controls for testing procedures. 2. Lime build-up Inspect the tank assembliy for excess lime deposits. Delime as required. CAUTION – Tanks and tank components should be delimed reglarly depending on local water conditions. Exces­sive mineral build-up on stainless steel surfaces can initiate corrosive reactions resulting in serious leaks. Dispenser is making unusual noises. 1. Plumbing lines 3. Water supply Plumbing lines should not be resting on the counter top. (A) The dispenser must be connected to a cold water line. (B) Water pressure to the dispenser must not be higher than 90 psi (620 kPa). Install a regulator if necessary to lower the work­ing pressure to approximately 50 psi (345 kPa). Ready indicator will not light. 1. Temperature control 2. Ready Indicator LED Refer to Service – electronic controls for testing procedures. Replace the indicator LED. 6 42311 071310 Page 7 WARNING Very Hot Water Use With Care! ! SERVICE WARNING – Disconnect the dispenser from the power source before the removal of any panel or the replacement of any component. WARNING - Inspection, testing, and repair of electrical equipment should be performed only by qualified service personnel. Disconnect the dispenser fromthe power source when servicing, except when electrical tests are required and the test procedure specifically states to connect the dispenser to the power source. Component Access - H5E/DV-PC/X Component Access - H10X P1770.30 The check valve, electronic control assembly, safety overflow switch, solenoid valve, overflow tube tempera­ture sensor and terminal block are located at the rear of the dispenser. Access is gained by removing the upper and lower rear panels. The upper is attached with six 8-32 slotted-head screws. The lower is attached with four 8-32 slotted-head screws. The middle panel must not be removed from the dispenser. P878.30 The check valve, electronic control assembly, over­flow protection switch, solenoid valve, overflow tube temperature sensor, triac assembly (EARLY MODELS ONLY) and terminal block are located on the side of the dispenser. Access is gained by removing the side panel. The panel is attached with eight 8-32 slotted­head screws. Faceplate Removal - H5 ELEMENT: After removing top cover, remove the two upper screws securing the faceplate. Carefully lift faceplate straight up until the three lower screws clear the key holes. 7 42311 022311 Page 8 SERVICE H5E, H5X LIQUID LEVEL CONTROL H5E, H5X LIQUID LEVEL CONTROL Electronic Controls Liquid Level Control Flow Charts PROBLEM: Does Not Refill Triac Assy H 5 FIG. 8a ELECTRONIC CONTROL P4093.35 Overflow Cup Full ? No Disconnect Level Probe Voltage present at Solenoid Valve ? No Unplug Ready Lamp Voltage present at Solenoid Valve ? No Replace Control Board PROBLEM: Overflows Yes Yes Yes Remove Power Drain cup Retry Does Water Flow ? No Replace Solenoid Valve Replace Ready Lamp Yes Replace Probe Electronic Control Board Location: The electronic control board is located inside the rear of the dispenser. Access will also be needed to the temperature sensor, overflow tube temperature sensor, and liquid level probe located on the tank lid. General: This system controls the liquid level and water temperature of the dispenser. These two functions act independently of each other and should be tested separately. .750 gpm FLOW 90 psig max operating pressure (Repl. Screen #23721.0000) BUNN Strainer/Flow Control # 22300.0750 (Repl. Flow Washer #20526.0750) H 10 FIG. 8b ELECTRONIC CONTROL BOARD AND TRIAC P1991-1.30 Drain cup Unplug Ready Lamp Retry Overflow ? Yes Drain cup Disconnect Probe Wire From Probe Short Probe Wire To Chassis Retry Overflow ? Yes Drain cup Disconnect Wire From Solenoid Valve Retry Overflow ? No Replace Control Board No No Yes Replace Ready Lamp Replace Probe Replace Solenoid Valve 8 42311 071310 Page 9 SERVICE (cont.) Electronic Controls (cont.) Liquid Level Control Test Procedure 1. Disconnect the dispenser from the power source. 2. Check the voltage across terminals 3 & 4 of the electronic control board with a voltmeter. Connect the dispenser to the power source. The indication must be: a.) 100 to 120 volts ac for 100 to 120 volt models or b.) 200 to 240 volts ac for 200 to 240 volt models or c.) 230 volts ac for 230 volt models. 3. Disconnect the dispenser from the power source. If voltage was present as described, proceed to #4. If voltage was not present as described, refer to the Wiring Diagrams and check the dispenser wiring harness. 4. Remove the pink wire from terminal 5 of the elec­tronic control assembly. 5. Check the voltage across terminals 1 & 4 of the electronic control board with a voltmeter. Connect the dispenser to the power source. The indication must be: a.) 100 to 120 volts ac for 100 to 120 voltmodels or b.) 200 to 240 volts ac for 200 to 240 volt models or c.) 230 volts ac for 230 volt models after a delay of approximately 5 seconds. 6. Disconnect the dispenser from the power source. If voltage was present as described, the liquid level con­trol of the system is operating properly, proceed to #7. If voltage was not present as described, replace the electronic control board and the temperature sensor in the tank lid. Temperature Control Flow Charts SERVICE (cont.) 9 42311 071310 Page 10 Electronic Controls (cont.) H5X THERMOSTAT 7. Reconnect the pink wire to terminal 5 of the elec­tronic control assembly. 8. Loosen the compression fitting, remove the probe from the tank lid, and inspect it for mineral depos­its. Replace it if necessary. Keep the exposed ends of the probe away from any metal surface of the dispenser. 9. Check the voltage across terminals 1 & 4 of the elec­tronic control assembly with a voltmeter. Connect the dispenser to the power source. The indication must be: a.) 100 to 120 volts ac for 100 to 120 volt models or b.) 200 to 240 volts ac for 200 to 240 volt models or c.) 230 volts ac for 230 volt models after a delay of approximately 5 seconds. 10. Touch the screw head end of the probe to the dis­penser housing. The indication must be 0. 11. Move the probe away from the dispenser housing. The indication must again be: a.) 100 to 120 volts ac for 100 to 120 volt models or b.) 200 to 240 volts ac for 200 to 240 volt models or c.) 230 volts ac for 230 volt models after a delay of approximately 5 seconds. 12. Disconnect the dispenser from the power source. If voltage was not present as described, check the pink probe wire and the green ground wire for continuity and/or replace the probe. Temperature Control Test Procedure 1. Disconnect the dispenser from the power source. 2. Check the voltage across terminals 3 & 4 of the electronic control circuit board with a voltmeter. Connect the dispenser to the power source.The indication must be: a.) 100 to 120 volts ac for 100 to 120 volt models or b.) 200 to 240 volts ac for 200 to 240 volt models or c.) 230 volts ac for 230 volt models. 3. Disconnect the dispenser from the power source. 4. Check the voltage across the tank heater terminals with a voltmeter. Connect the dispenser to the power source. The indication must be: a.) 100 to 120 volts ac for 100 to 120 volt models or b.) 200 to 240 volts ac for 200 to 240 volt models or c.) 230 volts ac for 230 volt models. 5. Disconnect the dispenser from the power source. Temperature Control Flow Charts (cont.) If voltage was present as described, reinstall the probe, the sensing function of the system is operating properly. PROBLEM: Boils Excessively - Fills Cup Drain cup Retry Red Light On While Boiling ? Disconnect Blue Wire From Control Board Pin 7 Retry Still Boiling ? No Replace Control Board Yes Replace Steam Sensor No Yes Replace Control Assembly Yes Still Boiling ? No Finished Replace Triac Assembly Check For Split Tank Heater 10 H5E THERMOSTAT PROBLEM: Boils Drain cup Retry Red Light On While Boiling ? No Disconnect Blue Wire From Control Board Pin 7 Retry Still Boiling ? No Replace Control Board Yes Replace Control Assembly Yes Replace Triac Assembly Check For Split Tank Heater 42311 071310 Page 11 SERVICE (cont.) Electronic Controls (cont.) If voltage was present as described, the temperature control of the system is operating properly. If voltage was not present as described, contact Bunn-O-Matic to order an electronic control board and temperature sensor for evaluation and proceed to #9. 6. Replace the electronic control board. 7. Check the voltage across the tank heater terminals with a voltmeter. Connect the dispenser to the power source. The indication must be: a.) 100 to 120 volts ac for 100 to 120 volt models or b.) 200 to 240 volts ac for 200 to 240 volt models or c.) 230 volts ac for 230 volt models 8. Disconnect the dispenser from the power source. If voltage was present as described, the temperature control of the system is operating properly. Return the new electronic control board or temperature sensor to Bunn-O-Matic for credit. Electronic Controls Removal and Replacement 1. Remove all wires from the electronic control board terminals. 2. Remove the six 6-32 screws holding the electronic control board to the component bracket. 3. Disconnect the temperature sensor, overflow tube temperature sensor, and indicator wires from the electronic control board. 4. Attach the temperature sensor, overflow tube temperature sensor, and indicator wires to the electronic control assembly. 5. Fasten the new electronic control board to its bracket. 6. Refer to Fig 2 when reconnecting the wires. 7. Review the initial set-up procedures on page 6. T5 PNK to Liquid Level Probe T4 WHI or RED to BLU to Tank Heater WHI/VIO to Terminal Block J3 PNK & GRY to Heater Indicator Refill Indicator Power Indicator Ready Indicator Terminal Block T3 BLK to Overflow Safety Switch T2 GRN or GRN/YEL to Chassis Ground T1 WHI/BLU to Solenoid J5 GRY & GRY toTherm­istor (H5X only) J4 BLK & WHI to Temperature Sensor FIG. 11a WIRING CONNECTIONS Adjustments The H5X/H10X dispensers hold the water tempera­ture at the threshold of boiling. It is not adjustable by the user. The H5E dispenser is factory calibrated for the temperature specified on the data plate. If adjustment is required, use the following procedure: 1. Fill the dispenser according to the steps in the Initial Set-up. 2. Take the temperature of the stream of water im­mediately below the faucet as it flows from the dispenser with an accurate thermometer. Do not take the temperature of water collected in a con­tainer. 11 3. If any adjustment is required, refer to LEVEL 1 PROGRAMMING in the Operating Manual. 42311 071310 Page 12 SERVICE (cont.) Limit Thermostat Location: The limit thermostat is located on the tank lid. To test the limit thermostat, access will also be needed to the terminal block located at the rear of the dispenser. H 5 P4093 FIG. 12a LIMIT THERMOSTAT If voltage was present as described, reconnect the black wire and proceed to #5. If voltage was not present as described, refer to the Wir­ing Diagrams and check the dispenser wiring harness. 5. Check for continuity across the terminals of the limit thermostat. If continuity is not present as described, the circuit is broken. Press the reset button of the limit thermostat and recheck for continuity. If continuity is not present as described, replace the limit thermostat. Removal and Replacement: 1. Remove both wires from the limit thermostat ter­minals. 2. Remove the two #10-32 nuts attaching the limit thermostat to the top of the tank. 3. Install the new limit thermostat and secure into place with two #10-32 nuts. 4. Refer to FIG. 4 when reconnecting the wires. H 10 P1993 FIG. 12b LIMIT THERMOSTAT Test Procedure: 1. Disconnect the dispenser from the power source. 2. There are two black wires on the limit thermostat terminals. One comes from the terminal block. The other goes directly to the tank heater terminal. Re­move the black wire at the limit thermostat coming from the terminal block. 3. Check the voltage across the black wire removed from the limit thermostat and the white wire or red wire of the terminal block with a voltmeter. Connect the dispenser to the power source. The indication must be: a.) 100 to 120 volts ac for 100 to 120 volt models or b.) 200 to 240 volts ac for 200 to 240 volt models or c.) 230 volts ac for 230 volt models. 4. Disconnect the dispenser from the power source. 12 BLK to Terminal Block BLK to Tank Heater FIG. 12c LIMIT THERMOSTAT WIRING Reset P1776 42311 071310 Page 13 SERVICE (cont.) Safety Overflow Switch FIG. 13a SAFETY OVERFLOW SWITCH H 5 P4093 Removal and Replacement: 1. Disconnect the black wires from the safety overflow switch. 2. Remove the nut beneath the copper overflow cup. 3. Remove the entire switch assembly from the cup. 4. Place the new switch assembly into the cup, wires first. Make sure that a gasket is in place around the threaded switch stem. NOTE - The magnets must be at the top of the float and there must be NO stainless steel washers installed for the safety overflow switch to operate properly. 5. Install the nut beneath the copper overflow cup. Be sure not to overtighten. 6. Reconnect the wires, FIG. 6. H 10 P1993 FIG. 13b OVERFLOW PROTECTION SWITCH Location: The safety overflow switch is located inside the rear of the dispenser inside the copper overflow cup. For testing or removal of the safety overflow switch, access may also be needed by removing the two screws attaching the electronic control assembly to its mount­ing bracket. Test Procedure: 1. Once voltage is verified at the power source, check for continuity across the safety overflow switch red wires only until the plastic float is raised and check that continuity returns when the plastic float is again lowered. RED to BLK Wire from Terminal Block RED to BLK Wire from Elec­tronic Control #3 P1777 FIG. 13c SAFETY OVERFLOW WIRING If continuity is present as described, reconnect each of the red wires to the black wires, the safety overflow switch is operating properly. If continuity is not present as described, replace the safety overflow switch. 13 42311 071310 Page 14 SERVICE (cont.) Fill water tank bef ore tur ning -o n thermostat or con nect ing appl ianc e to power source. Do not use near comb ustib les. Follow national/loc al elec trica l codes . Electrically g round t he chas sis. Use only on a proper ly prot ected circuit capabl e of the ra ted loa d. FAILURE TO COMPLY RISKS EQUIPMENT DAMA GE, FIRE, OR SHOCK HAZARD READ THE ENTIRE OPERATING MANUAL INCLUDING THE LIMIT OF WARRANTY AND LIABILITY BE FORE BUYING OR USING THIS PRODUCT THIS A PPLIANCE IS HEATED WHENEVER CON NECTED TO A POWER SOURCE 00831.0000A 5/88 © 1988 BUNN-O-MATIC CORPORATION WARNING ! Solenoid Valve (Late Models) Location: The solenoid valve is located inside the rear of the dispenser on the right side near the bottom. To test the solenoid valve, access will also be needed to the electronic control board. H 5 P1778 FIG. 14a SOLENOID VALVE Test Procedure: 1. Disconnect the dispenser from the power source and turn-off the water supply to the dispenser. 2. Remove the pink wire from terminal 5 of the elec­tronic control board. 3. Check the voltage across the solenoid valve coil terminals with a voltmeter. Connect the dispenser to the power source. The indication must be: a.) 100 to 120 volts ac for 100 to 120 volt models or b.) 200 to 240 volts ac for 200 to 240 volt models or c.) 230 volts ac for 230 volt models after a delay of approximately 5 seconds. 4. Disconnect the dispenser from the power source. sound after approximately 5 seconds, as the coil magnet attracts the plunger. 8. Disconnect the dispenser from the power source. 9. Reconnect the pink wire to terminal 5 of the elec­tronic control board. If the sound was heard as described and water will not pass through the solenoid valve, there may be a blockage 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 was 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 dispenser. 3. Disconnect the water line from the solenoid valve. 4. Remove the two 8-32 slotted-head screws holding the solenoid valve and mounting bracket to the back panel. 5. Lift-out the solenoid valve. 6. Securely install the new solenoid valve to the back panel. 7. Securely fasten the water line to the solenoid valve. 8. Reconnect the wires, FIG. 8. WHI/BLU to Electronic Control Board T1 WHI or RED to Terminal Block If voltage was present as described, proceed to #5. If voltage was not present as described, refer to the Wir­ing Diagrams and check the dispenser wiring harness. 5. Remove both wires from the solenoid valve coil terminals. 6. Check for continuity across the solenoid valve coil terminals. If continuity is present as described, reconnect the wires and proceed to #7. If continuity is not present as described, replace the solenoid valve coil. 7. Check the solenoid valve for coil action. Connect the dispenser to the power source. Listen carefully in the vicinity of the solenoid valve for a “clicking” 14 FIG. 14b SOLENOID VALVE WIRING 42311 071310 Page 15 BUNN 90 psig max operating pressure Strainer/Flow Control # 22300.0750 (Repl. Flow Washer #20526.0750) (Repl. Screen #23721.0000) .750 gpm FLOW SERVICE (cont.) Solenoid Valve (Early Models) Location: The solenoid valve is located behind the large access panel on the left side of the dispenser. To test the solenoid valve, access will also be needed to the electronic control board. H 10 P1994 FIG. 15a SOLENOID VALVE Test Procedure: 1. Disconnect the dispenser from the power source and turn off the water supply to the dispenser. 2. Remove the pink wire from terminal 5 of the elec­tronic control board. 3. Check the voltage across the solenoid valve coil terminals with a voltmeter. Connect the dispenser to the power source. The indication must be 200 to 240 volts ac for 200 to 240 volt models after a delay of approximately 5 seconds. 4. Disconnect the dispenser from the power source. If continuity is present as described, reconnect the wires and proceed to #7. If continuity is not present as described, replace the solenoid valve coil. 7. Check the solenoid valve for coil action. Connect the dispenser to the power source. Listen carefully in the vicinity of the solenoid valve for a “clicking” sound after approximately 5 seconds, as the coil magnet attracts the plunger. 8. Disconnect the dispenser from the power source. 9. Reconnect the pink wire to terminal 5 of the elec­tronic control board. If the sound was heard as described and water will not pass through the solenoid valve, there may be a blockage 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 was 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 dispenser. 3. Disconnect the water lines to and from the solenoid valve. 4. Remove the two 8-32 slotted-head screws holding the solenoid valve and mounting bracket to the component bracket. 5. Lift out the solenoid valve. 6. Remove the two 10-32 slotted-head screws holding the solenoid valve to its mounting bracket. 7. Securely install the new solenoid valve to its mount­ing bracket. The direction of flow arrow must be pointing towards the tank lid. 8. Attach the solenoid valve and mounting bracket to the component bracket. 9. Securely fasten the water lines to and from the solenoid valve. 10. Reconnect the wires, FIG. 8. WHI/BLU to Contol Board T1 RED to Terminal Block RED to Control Board T4 If voltage was present as described, proceed to #5. If voltage was not present as described, refer to the Wir­ing Diagrams and check the dispenser wiring harness. 5. Remove both wires from the solenoid valve coil terminals. 6. Check for continuity across the solenoid valve coil terminals. 15 P1779 FIG. 15b SOLENOID VALVE WIRING 42311 071310 Page 16 SERVICE (cont.) Tank Heater Location: The tank heater is located in the tank lid. FIG. 16a TANK HEATER H 5 P4093 4. Remove the tank heater from the tank lid and in­spect it for cracks in the sheath. If the sheath shows no sign of damage, proceed to #5. If the sheath is damaged, replace the tank heater. 5. Check for continuity across the tank heater termi­nals. If continuity is present as described, reinstall the tank heater. The tank heater is operating properly. If continuity is not present as described, replace the tank heater. Removal and Replacement: 1. Remove the wires to the tank heater. 2. Remove the 8-32 nuts from the tank heater flange. 3. Remove the tank heater. 4. Inspect the tank heater gasket and replace if neces­sary. 5. Securely install the new tank heater. Be certain of a watertight seal. 6. Reconnect the wires, FIG. 10. H 10 P1993 FIG. 16b TANK HEATER Test Procedure: 1. Disconnect the dispenser from the power source. 2. Check the voltage across the terminals of the tank heater with a voltmeter. Connect the dispenser to the power source. The indication must be: a.) 100 to 120 volts ac for 100 to 120 volt models or b.) 200 to 240 volts ac for 200 to 240 volt models or c.) 230 volts ac for 230 volt models. 3. Disconnect the dispenser from the power source. If voltage is present as described, proceed to #4. If voltage is not present as described, replace the tank heater. 16 BLU to Control Board Relay BLK to Limit Thermostat FIG. 16c TANK HEATER WIRING HEATER RESISTANCE 1800W-120V 07.44 - 08.67 4000W-240V 13.43 - 15.51 4000W-208V 10.09 - 11.99 6000W-240V 08.85 - 10.23 6000W-208V 06.67 - 07.70 TERMINAL TO SHEATH - INFINITE (OPEN) P1780 42311 071310 Page 17 SERVICE (cont.) Steam Sensor (Thermistor) Location: The thermistor is located on the end of the overflow tube above the overflow cup. To test the thermistor, access will also be needed to the electronic control board. H 5X P1993 FIG. 17a LOCATION Removal and Replacement: 1. Disconnect the dispenser from the power source. 2. Disconnect the thermistor from J5 on control board. 3. Loosen the set screw and the two screws securing the two half blocks together. Remove thermistor assembly from overflow tube. 4. Install new thermistor on tube and slide down until it contacts the flared end. NOTE: It’s critical that the thermistor be centered directly under the tube opening. 5. Snug the set screw so the block assembly does not move aroung easily. 6. Connect the thermistor to J5 on control board. NOTE: DO NOT TEST OPERATION WITH PANELS REMOVED, AS AIR MOVEMENT CAN HINDER PROPER READINGS ON THERMISTOR. Mounting screws H 10X P1993 FIG. 17b LOCATION Test Procedure: 1. Disconnect the dispenser from the power source. 2. Disconnect the thermistor from J5 on control board. 3. Check the resistance across thermistor with a ohmmeter. The resistance range is approximately 9K @ room temperature to approximately 2K @ 200°F. 4. Disconnect the dispenser from the power source. Set screw DO NOT BEND THERMISTOR UP/DOWN FIG. 17c STEAM SENSOR EXPLODED Thermistor centered under tube opening If resistance was present as described, the thermistor is working. If resistance was not present as described, replace the control board. 17 FIG. 17d THERMISTOR POSITION 42311 080510 Page 18 SERVICE (cont.) Dispense Valve (PC Only) Location: The Dispense Valve is located behind control panel. Bracket Shroud Dispense valve Nut Flare nut If voltage is not present as described, refer to Wir­ing Diagrams and check the dispenser wiring harness. Also check the control board for proper operation. Removal and Replacement: 1. Disconnect the dispenser from the power source and allow to cool. 2. Drain enough water from the tank so the water level is below the outlet. 3. Remove the nut and flare nut from the valve. 4. Remove the top cover, shroud, and bracket. 5. Disconnect wires from the valve. 6. Using a back up wrench to hold fitting in place, Remove the valve. 7. Wrap threads of fitting with Teflon tape and install new valve. 8. Install bracket, nut, flare nut, wires and covers. FIG. 18a DISPENSE VALVE Test Procedures: 1. Check the valve for coil action. Turn on the valve with the dispense button. Listen carefully in the vicinity of the dispense valve for a click as the coil pulls the plunger in. If no sound is heard as described, proceed to #2. If the sound is heard as described, there may be a blockage in the valve. Disconnect the dispenser from the power source. Remove the valve and inspect for blockage, and de-lime all related areas. 2. Connect voltmeter leads to the coil terminals. Turn on the valve with the dispense button. NOTE: Due to the internally rectified coil, the indication will be 120VAC all the time. Set the meter to DC volts. The indication should be 170VDC when activated. If the polarity of meter leads are reversed, reading will indicate -170VDC. (Double these readings for 240 volt coils) FIG. 18b VALVE REMOVAL REPAIR KIT If voltage is present as described, but no coil action is observed, valve is defective. Replace valve and test again to verify repair. 18 FIG. 18c VALVE REPAIR KIT 42311 071310 Page 19 GRN Earth Ground MASTER ON/OFF SWITCH BLK-14 L2N L1 RED-14 SCHEMATIC WIRING DIAGRAM H5E-DV PC Chassis Ground LIMIT THERMOSTAT BLK-14 N.C. OVERFLOW PROTECTION SWITCH 1 6 FACTORY 10 5 USE ONLY BLK-14 34 BLK-18 J7 12 MAIN CONTROL BOARD J2 BLK-18 COM RELAY BLU-14 N.O. J6-1 0-3.3VDC 0-3.3VDC J3-1 J3-5 RED-14 SELECTOR SWITCH WHI/BLU-18 WHI-18 VIO-18 J5-1 J4-1 J1-1 J1-5 BRN-14 WHI/VIO-14 TANK HEATER 4000 W 5 4 3 2 1 PINK-22 GRN-18 GRY - ­GRYt° + + - + 120VAC 120VAC STEAM SENSOR TANK HEATER 1800 W REFILL SOL SOL DISPENSE USED ON H5X ONLY WHT-14 WHT-18 WHT-18 BLK-24 WHI-24 0-13.8VAC H5-PC NO JUMPER Early H5E, H5X, H10X Install jumper thru ver. 1.04 NOTE: no jumper used on any Model starting with ver. 1.08 120V AC 2 WIRE + GND 120/208V AC 3 WIRE + GND 120/240V AC 3 WIRE + GND SINGLE PHASE 19 “Hidden” Switch Right Dispense Middle Dispense Power Manual Dispense/Stop Left Dispense MEMBRANE SWITCH ASSY TANK STATIC SHIELD t° Ready Heater 39333.0000D 09/09 ©2006 BUNN-O-MATIC CORPORATION 42311 071310 Page 20 GRN BLK-14 L1 L2 RED-14 SCHEMATIC WIRING DIAGRAM H5E-PC Chassis Ground LIMIT THERMOSTAT BLK-14 N.C. OVERFLOW PROTECTION SWITCH 1 6 FACTORY 10 5 USE ONLY Earth Ground BLK-14 34 BLK-18 J7 12 MAIN CONTROL BOARD J2 BLK-18 COM RELAY EMI FILTER RED-14 BLU-14BLU-14 TANK HEATER 4000 W WHI/BLU-18 RED-18 VIO-18 5 N.O. 4 3 2 1 J6-1 - - J5-1 0-3.3VDC 0-3.3VDC J3-1 J3-5 J4-1 J1-1 J1-5 + + - + LIMIT THERMOSTAT REFILL 230VAC DISPENSE 230VAC PINK-22 GRN-18 GRY GRYt° STEAM SENSOR SOL SOL RED-18 RED-18 USED ON H5X ONLY BLK-24 WHI-24 0-13.8VAC H5-PC NO JUMPER Early H5E, H5X, H10X Install jumper thru ver. 1.04 NOTE: no jumper used on any Model starting with ver. 1.08 230V AC 2 WIRE + GND SINGLE PHASE 20 “Hidden” Switch Right Dispense Middle Dispense Power Manual Dispense/Stop Left Dispense MEMBRANE SWITCH ASSY TANK STATIC SHIELD t° Ready Heater 39333.0001C 10/09 ©2006 BUNN-O-MATIC CORPORATION 42311 071310 Page 21 SCHEMATIC WIRING DIAGRAM H5-PC 200V GRN/YEL BLK L1 L2 or N TERMINAL BLOCK RED BRN/WHI BRN/BLK N.C. OVERFLOW PROTECTION SWITCH BLK MAIN CONTROL BOARD J2 1 6 FAC TORY 10 5 USE ONLY J2 BRN/WHI FILTER TANK HEATER BLK 34 12 NOCOM RELAY Chassis Ground EMI THERMOSTAT BLU BRN J6-1 J5-1 0-3.3VDC J4-1 0-3.3VDC J3-1 J3-5 LIMIT J1-1 J1-5 Earth Ground BLU/BLK WHI/BLU 12 34 TAN WHI/RED 5 4 3 2 1 PINK-22 GRN-18 GRY - ­GRYt° + + - + REFILL SOL STEAM SENSOR RED MASTER ON/OFF RFI SUPPRESSION USED ON H5X ONLY SWITCH CAPACITOR DISPENSE SOL VIOWHI/VIO BLK-24 WHI-24 0-13.8VAC H5-PC NO JUMPER Early H5E, H5X, H10X Install jumper thru ver. 1.04 NOTE: no jumper used on any Model starting with ver. 1.08 200V AC 2 WIRE + GND SINGLE PHASE 21 “Hidden” Switch Right Dispense Middle Dispense Left Dispense Power Manual Dispense/Stop MEMBRANE SWITCH ASSY Ready Heater TANK t° STATIC SHIELD 39333.0002A 12/12 ©2006 BUNN-O-MATIC CORPORATION 42311 121312 Page 22 LIMIT THERMOSTAT BLK-14 LIMIT THERMOSTAT BLK-14 OVERFLOW PROTECTION SWITCH REDREDBLK-18 34 J7 12 SCHEMATIC WIRING DIAGRAM H10X GRN Earth Ground MAIN ON/OFF SWITCH (Late Models only) BLK-14 BLK-14 Chassis Ground BLU-14 TANK HEATER BLU-14 TANK HEATER BLU-20 TAN-20 BLU-20 TAN-20 BLK-18 BLK-14 BLK-14 TRIAC TRIAC L1 L2 or N WHI/VIO-14 WHI/VIO-14 RED or WHI-18 PINK-22 RED-18 or WHI-18 RED-18 or WHI-18 GRN-18 WHI/BLU-18 GRY GRYt° GRY PNK GRY PNK PNK GRY GRY PNK HEATER STEAM SENSOR BLU-18 MAIN CONTROL BOARD J2 1 6 FACTORY 10 5 USE ONLY Early H5E, H5X, H10X COM RELAY BRN/BLK-18 N.O. J6-1 0-3.3VDC 0-3.3VDC J3-1 J3-5 NO JUMPER J5-1 J4-1 J1-1 J1-5 H5-PC 5 4 3 2 1 - ­+ + ­+ Install jumper thru ver. 1.04 REFILL POWER NOTE: no jumper used on any Model starting with ver. 1.08 40707.0000C 09/09 © 2008 BUNN-O-MATIC CORPORATION SOL USED ON H5X ONLY READY BLK-24 WHI-24 0-13.8VAC TANK 200-240 VOLTS AC 2 WIRE + GND SINGLE PHASE t° 22 42311 071310 Page 23 SCHEMATIC WIRING DIAGRAM H5E/H5X LIMIT THERMOSTAT BLK-14 OVERFLOW PROTECTION SWITCH REDREDBLK-18 34 J7 12 MAIN BLK-14 BLU-18 COM RELAY TANK HEATER N.O. Chassis Ground BLU-14 BLU-20 5 4 3 2 1 GRN Earth Ground MAIN ON/OFF SWITCH (Late Models only) BLK-18 BLK-14 PINK-22 RED-18 or WHI-18 RED-18 or WHI-18 GRN-18 WHI/BLU-18 L1 WHI/VIO-14 SOL L2 or N RED or WHI-18 CONTROL BOARD J2 1 6 FACTORY 10 5 USE ONLY Early H5E, H5X, H10X J6-1 J5-1 0-3.3VDC J4-1 0-3.3VDC J3-1 J3-5 H5-PC NO JUMPER J1-1 J1-5 GRY - ­GRYt° + + - + GRY PNK GRY PNK PNK GRY GRY PNK HEATER STEAM SENSOR Install jumper thru ver. 1.04 REFILL NOTE: no jumper used on any Model starting with ver. 1.08 42375.0000A 09/09 © 2009 BUNN-O-MATIC CORPORATION USED ON H5X ONLY POWER READY BLK-24 WHI-24 0-13.8VAC TANK t° 100-120 VOLTS AC or 200-240 VOLTS AC 2 WIRE + GND SINGLE PHASE 23 42311 071310 Page 24 SCHEMATIC WIRING DIAGRAM H5XA, H5EA (CE) Chassis Ground LIMIT THERMOSTATLIMIT THERMOSTAT BLK-14 BLK-18 BLK-18 OVERFLOW PROTECTION SWITCH BLK-14 REDREDBLK-18 34 J7 12 TANK HEATER BLU-14 EMI FILTER BLU-14 WHI/VIO-14 GRN/YEL RED-18 RED-18 Earth Ground BLK-14 L1 RFI SUPPRESSION CAPACITOR L2 MAIN CONTROL BOARD J2 1 6 FAC TORY 10 5 USE ONLY COM RELAY N.O. J6-1 0-3.3VDC 0-3.3VDC J3-1 J3-5 NO JUMPER J5-1 J4-1 J1-1 J1-5 H5-PC Early H5E, H5X, H10X Install jumper thru ver. 1.04 NOTE: no jumper used on any Model starting with ver. 1.08 GRY GRY GRY PNK GRY PNK PNK GRY GRY PNK PINK-22 RED-18 GRN-18 WHI/BLU-18 STEAM SENSOR SOL t° RED-18 USED ON H5X ONLY BLK-24 WHI-24 0-13.8VAC 5 4 3 2 1 - + - + TANK t° HEATER REFILL READY POWER 230 VOLTS AC 2 WIRE + GND 40712.0000F 05/11 © 2008 BUNN-O-MATIC CORPORATION 24 SINGLE PHASE 42311 050511 Page 25 GRN or GRN/YEL Earth Ground SCHEMATIC WIRING DIAGRAM H5 ELEMENT L2 or N L1 TERMINAL BLOCK Chassis Ground N.C. OVERFLOW PROTECTION SWITCH BLK J1 BRN/BLK J2 BRN/WHI MAIN CONTROL BOARD 15 BLK TANK HEATER BLK 34 12 BLK BLU COM RELAY RED LIMIT THERMOSTAT BRN N.O. MASTER ON/OFF SWITCH WHI/BLU RED 12 34 REFILL TAN WHI/RED SOL DISPLAY BOARD 15 J5 100-240V AC 2 WIRE + GND SINGLE PHASE J4-1 J3-1 J2-1 J1-1 J1-5 PINK GRN/YEL GRY - ­GRYt° + + BLK - + WHI STEAM SENSOR USED ON H5X ONLY TEMP PROBE REFILL PROBE TANK t° 44657.0000B 05/11 ©2011 BUNN-O-MATIC CORPORATION 25 42311 050511 Loading... + hidden pagesUnhide You need points to download manuals. 1 point = 1 manual. You can buy points or you can get point for every manual you upload. Buy points Upload your manuals Buy Points How it Works FAQ Contact Us Questions and Suggestions Privacy Policy Cookie Policy Terms of Use