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Manual de usuario Bunn, modelo H5E

Fabricar: Bunn
Tamaño del archivo: 2.75 mb
Nombre del archivo: 10420.0000.pdf
Idioma del manual:en
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Resumen del manual


WARNING • Exercise extreme caution when servicing electrical equipment. • Disconnect the dispenser from the power source when servicing, except when electrical tests are specified. • Follow recommended service procedures • Replace all protective shields or safety notices Problem Equipment will not operate. Probable Cause 1. No power or incorrect voltage 2. Safety overflow switch 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. Refer to Service – safety overflow switch for testing procedures. See page 17. 10420 091902 TROUBLESHOOTING (cont.) Problem Probable Cause Remedy 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 – safety overflow switch for testing procedures. See page 17. Refer to Service – electronic controls for testing procedures. See page 10. Refer to Service – solenoid valve for testing procedures. See page 18. Refer to Service – solenoid valve for testing procedures. See page 18. Refer to Service – electronic controls for testing procedures. See page 10. Tank heater switch must be in the “ON” position. Refer to Service – safety overflow switch for testing procedures. See page 17. Refer to Service – limit thermostat for testing procedures. See page 16. Refer to Service – tank heater for testing procedures. See page 19. Refer to Service – electronic controls for testing procedures. See page 10. 1. No water 2. Water strainer/flow control 3. Safety overflow switch 4. Liquid level system 5. Solenoid valve 1. Solenoid valve 1. Liquid level system 1. Tank heater switch 2. Safety overflow switch 3. Limit thermostat 4. Tank heater 5. Temperature control Automatic refill will not operate after drawing hot water. Water flows into the tank continuously (Dispenser disconnected from power source). Water flows into the tank continuously (Dispenser connected to power source). Water is cold. CAUTION – Do not eliminate or bypass limit thermostat. Use only B.O.M. replacement part #23717.0003. 10420 011599 TROUBLESHOOTING (cont.) Problem Probable Cause Remedy Water boils continuously. Dispenser is making unusual noises. Ready indicator will not light. (when temperature is within 4° of its selected setting.) Refer to Service – electronic controls for testing procedures. See page 10. Inspect the tank assembliy for excess lime deposits. Delime as required. The nut on top of the solenoid valve must be tight or it will vibrate during operation. 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). Refer to Service – electronic controls for testing procedures. See page 10. Replace the indicator LED. 1. Temperature control 2. Lime build-up 1. Solenoid valve 2. Plumbing lines 3. Water supply 1. Temperature control 2. Ready Indicator LED 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. 10420 072500 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 replacement of any component. 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. The limit thermostat, liquid level probe, tank heater, and temperature sensor are located at the top of the dispenser. Access is gained by removing the top lid, attached with three 4-40 slotted-head screws. The triac assembly is located beneath the tank. Access is gained by removing four feet and the bottom panel attached with seven 8-32 slotted-head screws. NOTE - Completely drain the tank before tipping the dispenser. WARNING – Inspection, testing, and repair of electrical equipment should be performed only by qualified service personnel. Disconnect the dispenser from the power source when servicing,...

Otros modelos de este manual:
Calentadores de Agua - H5X (2.75 mb)

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