Bunn U3 U3A User Manual
Browse online or download User Manual for Coffee machines Bunn U3 U3A. Bunn U3 U3A User Manual
- Page / 41
- Table of contents
- TROUBLESHOOTING
- BOOKMARKS
- BUNN-O-MATIC CORPORATION 1
- INTRODUCTION 2
- WARRANTY 2
- ELECTRICAL REQUIREMENTS 4
- INITIAL SETUP 5
- PLUMBING REQUIREMENTS 5
- INITIAL SETUP (cont.) 6
- ADJUSTING BREW VOLUMES 6
- COFFEE BREWING 7
- CLEANING 7
- FILTER HOLDER 7
- TROUBLESHOOTING 8
- 10060 080900 10
- Diagrams 14
- Heater (T2) 16
- RED to Terminal 16
- Block(L2) 16
- SERVICE (cont.) 17
- CONTROL THERMOSTAT 17
- 10060 031599 18
- P1731.55 18
- PUMP ASSEMBLY 23
- SOLENOID 27
- Wiring Diagrams 32
- Model Timer 32
- Late Model 32
- DIGITAL TIMER (Late Models) 33
Summary of Contents
OPERATING & SERVICE MANUALBUNN-O-MATIC CORPORATIONPOST OFFICE BOX 3227SPRINGFIELD, ILLINOIS 62708-3227PHONE: (217) 529-6601 FAX: (217) 529-66441
Page 10TROUBLESHOOTING (cont.)PROBLEMTank not fillingWater running out of the overflowPROBABLE CAUSE1.ON/OFF Switch (This switchmust be in the "O
Page 11PROBABLE CAUSE1. Limit ThermostatCAUTION - Do not eliminate orbypass limit thermostat. Use onlyBunn-O-Matic replacement part#29329.10002. Contr
Page 12TROUBLESHOOTING (cont.)PROBLEMFunnels overflow (cont.)Coffee reservoir overflowsBrewer is making unusal noisesPROBABLE CAUSEREMEDY3. Pump - Flo
Page 13SERVICEThis section provides procedures for testing andreplacing various major components used in thisbrewer should service become necessary.
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
Page 15
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
Page 17SERVICE (cont.)CONTROL THERMOSTAT
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
Page 19LIMIT THERMOSTATSERVICE (cont.)
Page 2INTRODUCTIONThis brewer will brew a three gallon batch of coffee into each reservoir (one at a time). Each reservoir has itsown dispensing fauce
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
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
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
Page 23SERVICE (cont.)PUMP ASSEMBLY
Page 24RELAY (BREWERS W/BREW LOCKOUT)
Page 25SERVICE (cont.)RELAY (BREWERS W/BREW LOCKOUT)120/208V, 120/240V, 208V, 380V, 440V AND 240VMODELS PRIOR TO #U300004095230V MODELS #U300004095 AN
Page 26SELECTOR SWITCH (HALF BATCH OPTION)FIG. 20 SELECTOR SWITCH (HALF BATCH)Location:The selector switch is located in the upper centerof the switch
Page 27SERVICE (cont.)SOLENOID
Page 28SERVICE (cont.)SOLENOID6. Remove the tank inlet tube grommet and discard.7. Install new tank inlet tube grommet.8. Install new solenoid assembl
Page 29START SWITCH (BREW)
Page 3
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
Page 31SERVICE (cont.)THERMAL FUSES (230V-CE MODELS ONLY)
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
Page 33DIGITAL TIMER (Late Models)
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
Page 35BLK fromTerminal BlockSERVICE (cont.)TRANSFORMER (380V THREE WIRE MODELS ONLY)
Page 36
Page 37
Page 38
Page 4ELECTRICAL REQUIREMENTSCAUTION - The brewer must be disconnected from the power source until specified in Initial Set-Up.U333 & U3833 requi
Page 40SCHEMATIC WIRING DIAGRAM U383310060 080900
Page 41SCHEMATIC WIRING DIGRAM U383310060 080900
Page 5INITIAL SETUPCAUTION - The brewer must be disconnected from the power source throughout the initial setup, except whenspecified in the instructi
Page 6INITIAL SETUP (cont.)6. Brewing cycles may be started whenever water temperature is correct. This condition is indicated by the dialthermometer
Page 7COFFEE BREWING1. Brewing cycles may be started whenever water temperature is correct. This condition is indicated by the dialthermometer on fron
Page 8PROBLEMBrew cycle will not startPROBABLE CAUSE1. No water2. No power or incorrect voltage tothe brewerREMEDYWater lines and valves to the brewer
Page 9TROUBLESHOOTING (cont.)PROBLEMBrew cycle will not start (cont)Brew cycle starts with brew lockoutrelay engaged.PROBABLE CAUSE2. No power or inco
Related products and manuals for Coffee machines Bunn U3 U3A
(12 pages)
(32 pages)
(8 pages)
(37 pages)
(32 pages)
(2 pages)
(12 pages)
(30 pages)
© 2020, manymanuals.com. All rights reserved. | 0.878 s |
Manymanuals.com
Manymanuals.de
Manymanuals.fr
Manymanuals.it
Manymanuals.pl
Manymanuals.cz
Manymanuals.es
Manymanuals-pt.com
Comments to this Manuals