Bunn Comprehensive ITB Manual for Effective Coffee Maker Operation

Page 25

 

 

 

 

 

 

 

 

 

 

 

 

L1

L2

N

 

SCHEMATIC WIRING DIAGRAM

 

 

 

Earth Ground

RED

WHI

 

 

 

 

 

 

 

 

 

 

 

 

 

ITCB-DV & ITCB-C-DV

 

 

 

 

 

BLK

 

 

 

Chassis Ground MAIN ON/OFF SWITCH

 

 

 

 

WITH FACTORY SWEETENER

 

 

 

 

 

 

 

(Late Models only)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BLK-18

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BLK-14

 

 

 

 

 

LIMIT

 

 

 

 

SELECTOR

 

 

 

 

 

 

 

 

THERMOSTAT

BLU-14

 

 

 

SWITCH

 

WHI-14

 

 

 

 

 

 

BLK-14

TANK HEATER

 

 

 

 

 

 

 

 

 

BLU-14

 

 

 

 

 

 

 

 

 

 

 

 

BLK-14

 

 

 

 

TANK HEATER

 

 

 

BLK

 

 

 

 

 

 

 

 

 

RED-14

 

 

 

 

 

1680W

 

 

 

 

WHI/VIO-14

 

 

 

 

VIO

FUNNEL SENSOR

(1425W ITCB-C-DV ONLY)

 

 

 

1800W

 

 

 

 

J1-1

1

3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

#

J1-2

WHI/VIO

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

/

COM

BLU-14

 

 

 

 

 

 

 

 

 

 

 

 

.

BLK-14

 

 

 

 

 

 

 

 

 

 

 

 

N.O.

 

 

 

 

 

 

 

 

 

 

 

 

4

WHI/VIO

 

 

 

WHI/VIO

 

DILUTION

 

 

WHI

2

J17-1

 

 

 

SOL

 

 

 

/

 

 

 

 

 

DISPENSE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

,

 

WHI/GRN

 

WHI/GRN

SOL

 

 

 

 

 

WHI

 

 

 

 

 

 

 

 

 

0

 

 

 

 

 

 

 

 

 

REFILL

 

 

 

 

WHI/BLU

 

 

 

 

 

 

WHI/BLU

 

 

WHI

#

 

 

 

 

 

 

 

 

 

J17-5

 

 

 

 

 

 

SOL

 

 

"

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

/

 

 

 

 

 

BRN/WHI

SWEETENER

 

 

 

WHI

!

 

 

 

 

 

 

 

 

2

 

BLK

 

 

 

 

 

SOL

 

 

 

 

 

 

$

J17-10

 

 

 

 

 

 

 

 

 

 

 

 

 

 

WHI

 

 

 

 

 

 

 

 

 

 

 

WHI

 

 

 

 

 

 

 

 

 

 

 

 

 

 

J17-14

 

 

 

 

 

 

 

 

 

 

 

 

 

 

J15-1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TRANSFORMER

 

 

 

 

 

 

 

 

 

 

 

 

 

10VA

 

 

 

 

 

 

 

 

 

 

 

 

J15-5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

J13-1

 

WHI

 

 

 

 

 

 

 

 

 

 

 

 

 

BLK

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LEVEL

 

 

 

 

 

 

 

 

 

 

 

 

 

PNK

 

 

 

 

 

 

 

 

 

 

 

 

 

PROBE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

J3-1

GRN

LOW PRODUCT

 

 

 

DETECT SWITCH

 

t

C

NC

J3-5

BLU

 

 

NO

 

WHI/BLU

 

 

 

 

J3-8

1CONTROL PANEL ASSY

J2-1

 

BREW

PROG L

 

A

J2-5

 

 

 

 

BREW

PROG R

 

C

 

 

J2-10

HALF

FULL

 

 

 

J2-15

BREW

ON/OFF

HALF

B

 

 

 

 

 

FULL

J2-20

 

 

ON/OFF

 

 

 

J2-22

STATIC

 

 

SHIELD

 

 

 

 

 

 

22

 

 

J16-1

 

 

 

J16-5

 

 

 

J18-1

J9-1

120V AC 2 WIRE

120/208V AC 3 WIRE 120/240V AC 3 WIRE SINGLE PHASE

36460.0004A 10/08 ©2008 BUNN-O-MATIC CORPORATION

J9-7

25

42461 0911809

 

Image 25
Contents ITB/ITCB ICB/TWIN BUNN-O-MATIC Commercial Product Warranty Introduction Control Boards TroubleshootingRefill Circuit Problem TroubleshootingProbable Cause RemedyHeating Circuit Problem Probable Cause Remedy Brewing Circuit Problem Probable Cause Remedy Problem Probable Cause Remedy Troubleshooting Brewing CircuitMessage Probable Cause Remedy DiagnosticsICB Component Access Component AccessControl Board Membrane Switch Continuity Membrane SwitchExploded View Early Brew ValveLate Model Brew Valve Brew Valve Late ModelsRefill Valves DisassemblyEarly Itcb Refill Valves Early ICBICB Twin Tank Heaters Tank HeatersLimit Thermostats Limit ThermostatTesting Temperature Probe Temperature ProbeCalibrate Temp Probe CalibrationTest Procedure Voltage Selector SwitchTest Procedure Removal and Replacement Power SwitchSchematic 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