Bunn ICB/TWIN, ITB/ITCB manual Calibration, Calibrate Temp Probe

Page 20

TEMPERATURE PROBE

Removal and Replacement:

1.Disconnect the brewer from the power source.

2.Disconnect the two pin connector from J9 on control board.

3.Pull temperature probe out of it's grommet.

4.Install in reverse order.

Calibration:

1.Remove silicon vent fitting from tank lid.

2.Insert a digital temp probe through the exposed vent hole in tank lid to the same depth as the fac- tory temp probe. FIG 20-1.

3.Press and hold the "Hidden" button until display reads "CAL TEMPERATURE SENSOR?" "NO/YES"

4.Select "YES". The display should show something similar to the screen below (FIG 20-2).

NOTE: Variables such as tank set temperature could show different numbers than the example shown here. Tank must be at it's ready temp before calibrating.

5.Press the + (Control) button to increase or - (Digi- tal) button to decrease temperature reading until it matches the reading on the thermometer.

6.Exit program mode, remove thermometer, and install vent fitting. Calibration is complete

FIG. 20-1 CALIBRATE TEMP PROBE

200° CAL 200°

(-) DONE (+)

FIG. 20-2 CALIBRATION

Adjust this

number

20

42461 0911809

 

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Contents ITB/ITCB ICB/TWIN BUNN-O-MATIC Commercial Product Warranty Introduction Troubleshooting Control BoardsTroubleshooting Refill Circuit ProblemProbable Cause RemedyHeating Circuit Problem Probable Cause Remedy Brewing Circuit Problem Probable Cause Remedy Troubleshooting Brewing Circuit Problem Probable Cause RemedyDiagnostics Message Probable Cause RemedyComponent Access ICB Component AccessControl Board Membrane Switch Membrane Switch ContinuityEarly Brew Valve Exploded ViewBrew Valve Late Models Late Model Brew ValveDisassembly Refill ValvesRefill Valves Early ICB Early ItcbTank Heaters ICB Twin Tank HeatersLimit Thermostat Limit ThermostatsTemperature Probe Testing Temperature ProbeCalibration Calibrate Temp ProbeVoltage Selector Switch Test ProcedurePower Switch Test Procedure Removal and ReplacementSchematic Wiring Diagram iTCBA, iTCBB Schematic Wiring Diagram With Factory Sweetener Schematic Wiring Diagram ICB-DV Schematic Wiring Diagram ICB Twin Schematic Wiring Diagram iCBA, iCBB Schematic Wiring Diagram ICB Twin 230V Chassis Ground Term Schematic Wiring Diagram ITB
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