Bunn U3 U3A Instrukcja Użytkownika

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OPERATING & SERVICE MANUAL
BUNN-O-MATIC CORPORATION
POST OFFICE BOX 3227
SPRINGFIELD, ILLINOIS 62708-3227
PHONE: (217) 529-6601 FAX: (217) 529-6644
10060.0000G 8/00 ©1984 Bunn-O-Matic Corporation
BUNN
®
U3
U3A
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Podsumowanie treści

Strona 1 - BUNN-O-MATIC CORPORATION

OPERATING & SERVICE MANUALBUNN-O-MATIC CORPORATIONPOST OFFICE BOX 3227SPRINGFIELD, ILLINOIS 62708-3227PHONE: (217) 529-6601 FAX: (217) 529-66441

Strona 2 - WARRANTY

Page 10TROUBLESHOOTING (cont.)PROBLEMTank not fillingWater running out of the overflowPROBABLE CAUSE1.ON/OFF Switch (This switchmust be in the "O

Strona 3

Page 11PROBABLE CAUSE1. Limit ThermostatCAUTION - Do not eliminate orbypass limit thermostat. Use onlyBunn-O-Matic replacement part#29329.10002. Contr

Strona 4 - ELECTRICAL REQUIREMENTS

Page 12TROUBLESHOOTING (cont.)PROBLEMFunnels overflow (cont.)Coffee reservoir overflowsBrewer is making unusal noisesPROBABLE CAUSEREMEDY3. Pump - Flo

Strona 5 - PLUMBING REQUIREMENTS

Page 13SERVICEThis section provides procedures for testing andreplacing various major components used in thisbrewer should service become necessary.

Strona 6 - ADJUSTING BREW VOLUMES

Page 14SERVICE (cont.)CIRCUIT BREAKER (120/208V and 120/240V ThreeWire Models and 440V Four Wire Models)Location:The circuit breaker is located on the

Strona 8 - TROUBLESHOOTING

Page 16RED to Left TankHeater (T2)RED to TerminalBlock(L2)BLK ThermalFuse to LeftTank HeaterBLK to leftTank Heater(L1)BLK to Right TankHeater (T1)BLK

Strona 9

Page 17SERVICE (cont.)CONTROL THERMOSTAT

Strona 10 - 10060 080900

Page 18SERVICE (cont.)FUSE AND FUSE HOLDER (208V, 240V, 230V TwoWire Models and 380V Three Wire Models)Location:The fuse and fuse holder are located o

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Page 19LIMIT THERMOSTATSERVICE (cont.)

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Page 2INTRODUCTIONThis brewer will brew a three gallon batch of coffee into each reservoir (one at a time). Each reservoir has itsown dispensing fauce

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Page 208. Disconnect the brewer from the power source andremove the jumper wire from terminal 4.If voltage is present as described, liquid level board

Strona 14 - Diagrams

Page 21SERVICE (cont.)LIQUID LEVEL BOARD AND LEVEL PROBE (cont.)T1 BLU to Solenoid ValveT2 BLK to ON/OFF Switch (Allmodels except 230V-CE models)T3 WH

Strona 15

Page 225. Disconnect the wires on the ON/OFF switch.6. a) 120/208V, 120/240V, 208V, 240V, 380V and440V Models - Check for continuity across thetermina

Strona 16 - Block(L2)

Page 23SERVICE (cont.)PUMP ASSEMBLY

Strona 17 - CONTROL THERMOSTAT

Page 24RELAY (BREWERS W/BREW LOCKOUT)

Strona 18 - P1731.55

Page 25SERVICE (cont.)RELAY (BREWERS W/BREW LOCKOUT)120/208V, 120/240V, 208V, 380V, 440V AND 240VMODELS PRIOR TO #U300004095230V MODELS #U300004095 AN

Strona 19

Page 26SELECTOR SWITCH (HALF BATCH OPTION)FIG. 20 SELECTOR SWITCH (HALF BATCH)Location:The selector switch is located in the upper centerof the switch

Strona 20

Page 27SERVICE (cont.)SOLENOID

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Page 28SERVICE (cont.)SOLENOID6. Remove the tank inlet tube grommet and discard.7. Install new tank inlet tube grommet.8. Install new solenoid assembl

Strona 22

Page 29START SWITCH (BREW)

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Page 30BLK to Contactor T1 (AllModels Except 230V-CEModels)BLK (Thermal Fuse) toContactor Top Left Ter-minal) (230V-CE Models)RED to Contactor T2 (All

Strona 25

Page 31SERVICE (cont.)THERMAL FUSES (230V-CE MODELS ONLY)

Strona 26

Page 32SERVICE (cont.)TIMER (Early Models)(cont.)5. With a voltmeter, check the voltage across thesockets P1 and P2 (blue and white wires) of thefemal

Strona 27 - SOLENOID

Page 33DIGITAL TIMER (Late Models)

Strona 28

Page 34SERVICE (cont.)DIGITAL TIMER (Late Models)BLU/BLK wire from TL5 to P1WHI/GRN wire from TL4 to (WHI) PumpWHI/BLU wire from TL3 to (BLK) PumpWHI

Strona 29

Page 35BLK fromTerminal BlockSERVICE (cont.)TRANSFORMER (380V THREE WIRE MODELS ONLY)

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Page 36

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Page 37

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Page 4ELECTRICAL REQUIREMENTSCAUTION - The brewer must be disconnected from the power source until specified in Initial Set-Up.U333 & U3833 requi

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Page 40SCHEMATIC WIRING DIAGRAM U383310060 080900

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Page 41SCHEMATIC WIRING DIGRAM U383310060 080900

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Page 5INITIAL SETUPCAUTION - The brewer must be disconnected from the power source throughout the initial setup, except whenspecified in the instructi

Strona 38

Page 6INITIAL SETUP (cont.)6. Brewing cycles may be started whenever water temperature is correct. This condition is indicated by the dialthermometer

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Page 7COFFEE BREWING1. Brewing cycles may be started whenever water temperature is correct. This condition is indicated by the dialthermometer on fron

Strona 40

Page 8PROBLEMBrew cycle will not startPROBABLE CAUSE1. No water2. No power or incorrect voltage tothe brewerREMEDYWater lines and valves to the brewer

Strona 41

Page 9TROUBLESHOOTING (cont.)PROBLEMBrew cycle will not start (cont)Brew cycle starts with brew lockoutrelay engaged.PROBABLE CAUSE2. No power or inco

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