Bunn H5E Operating & Service Manual

Bunn h5e, h5x operating and installation manual

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Illustrated parts catalog (29 pages)

Installation & operating manual (28 pages)

Specification (2 pages)

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Page 1 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.
Page 2: Warranty
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.
Page 3: Table Of Contents
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 00831.0000 37881.0000 10420 021408...
Page 4: Electrical Requirements
” water supply line. At least 18 inches of an FDA approved flexible beverage tubing, such as reinforced braided polyethylene or silicone, before the dispenser will facilitate movement to clean the countertop. Bunn- O-Matic does not recommend the use of a saddle valve to install the dispenser. The size and shape of the hole made in the supply line by this type of device may restrict water flow.
Page 5: Initial Set-Up
3. Remove the 4-40 screws at the sides of the top panel. 4. Gently remove one of the grommets from the tank lid. 5. Insert a tube to the bottom of the tank and syphon ALL of the water out. Bunn-O-Matic has a syphon assembly available (#12440.0000) for this purpose.
Page 6: Troubleshooting
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.
Page 7 TROUBLESHOOTING (cont.) Problem Automatic refill will not oper- ate after drawing hot water. Water flows into the tank con- tinuously (Dispenser discon- nected from power source). Water flows into the tank con- tinuously (Dispenser connect- ed to power source). Water is cold. CAUTION –...
Page 8 TROUBLESHOOTING (cont.) Problem Water boils continuously. CAUTION – Tanks and tank components should be delimed reglarly depending on local water conditions. Exces- sive mineral build-up on stainless steel surfaces can initiate corrosive reactions resulting in serious leaks. Dispenser is making unusual noises.
Page 9: Service
SERVICE This section provides procedures for testing and replacing various major components used in this dispenser should service become necessary. Refer to Troubleshooting for assistance in determining the cause of any problem. Component Access WARNING – Disconnect the dispenser from the power source before the removal of any panel or the replace- ment of any component.
Page 10: Electronic Controls
SERVICE (cont.) Electronic Controls FIG. 1 ELECTRONIC CONTROL Location: The electronic control assembly 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 and to the triac assembly located beneath the tank.
Page 11 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 elec- tronic 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 b.) 200 to 240 volts ac for 200 to 240 volt models...
Page 12 SERVICE (cont.) Electronic Controls (cont.) 7. Reconnect the pink wire to terminal 5 of the elec- tronic control assembly. 8. Loosen the compression fitting, remove the probe from the tank lid, and inspect it for mineral depos- its. Replace it if necessary. Keep the exposed ends of the probe away from any metal surface of the dispenser.
Page 13 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 assembly, tem- perature sensor, and triac assembly for evaluation and proceed to #9.
Page 14 NOTE - Each triac installation requires the use of an approved silicone heat sink compound. Bunn-O-Matic recommends the use of Dow Corning 340 compound or equivalent. It can be purchased direct from Bunn- O-Matic (part # 12572.0002). 1. Place the tank heater switch on the electronic con- trol assembly in the “OFF”...
Page 15 The H5X dispenser holds the water temperature at the threshhold 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.
Page 16: Limit Thermostat
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 dis- FIG. 6 LIMIT THERMOSTAT penser. Test Procedure: 1.
Page 17: Safety Overflow Switch
SERVICE (cont.) Safety Overflow Switch FIG. 8 SAFETY OVERFLOW 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 mount- ing bracket.
Page 18: Solenoid Valve
SERVICE (cont.) Solenoid Valve 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 assembly. FIG. 10 SOLENOID VALVE Test Procedure: 1.
Page 19: Tank Heater
SERVICE (cont.) Tank Heater Location: The tank heater is located in the tank lid. FIG. 12 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.
Page 20: Wiring Schematics
WIRING DIAGRAMS 10420 121598...
Page 21 WIRING DIAGRAMS 10420 121598...
Page 22 WIRING DIAGRAMS 10420 091902...

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Bunn H5E Operating & Service Manual

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