Manuals / Bunn / Kitchen Appliance / Coffeemaker

Bunn ICB/TWIN Schematic Wiring Diagram, Itcb-Dv & Itcb-C-Dv, 120V AC 2 WIRE, 120/208V AC 3 WIRE

Models: ITB/ITCB ICB/TWIN

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SCHEMATIC WIRING DIAGRAM

L1

L2

N

SCHEMATIC WIRING DIAGRAM

GRN

BLK

RED

WHI

ITCB-DV & ITCB-C-DV

MAIN ON/OFF SWITCH

(Late Models only)

BLK-18

BLK-14

LIMIT

SELECTOR

THERMOSTAT

(1425W ITCB-C-DV ONLY)

SWITCH

WHI-14

BLK-14

BLU-14

TANK HEATER

BLK-14

BLU-14

TANK HEATER

BLK

RED-14

1680W

WHI/VIO-14

VIO

FUNNEL SENSOR

1800W

J1-1

1

3

OPTIONAL

J1-2

WHI/VIO

BRN/WHI

SOL

#

SWEETENER

/

COM

BLU-14

BRN/WHI

WHI

KIT

.

BLK-14

N.O.

4

WHI/VIO

WHI/VIO

DILUTION

WHI

2

J17-1

SOL

/

DISPENSE

,

WHI/GRN

WHI/GRN

WHI

SOL

0

REFILL

WHI/BLU

WHI/BLU

WHI

#

J17-5

SOL

"

/

!

2

BLK

$

J17-10

WHI

WHI

J17-14

J15-1

TRANSFORMER

10VA

J15-5

J13-1

WHI

BLK

LEVEL

PNK

PROBE

J3-1

GRN

t

J3-5

J3-8

1CONTROL PANEL ASSY

J2-1

J2-5

J2-10

J2-15

J2-20

J2-22

J16-1

J16-5

J18-1

J9-1

GRN

WHI

RED

BLK

	BREW		PROG L
	A		PROG L
	A

BREW	PROG R
C	PROG R
C
HALF	FULL
BREW	ON/OFF	HALF
B
		FULL
		ON/OFF

STATIC

SHIELD

22

MEMORY

BOARD

(Early Models only)	120V AC 2 WIRE
	120V AC 2 WIRE
	120/208V AC 3 WIRE
	120/240V AC 3 WIRE
	SINGLE PHASE

36460.0003A 06/08 ©2008 BUNN-O-MATIC CORPORATION

J9-7

24	42461 0911809

Image 24

Bunn ICB/TWIN manual Schematic Wiring Diagram, Itcb-Dv & Itcb-C-Dv, 120V AC 2 WIRE, 120/208V AC 3 WIRE, 120/240V AC 3 WIRE

Contents

SERVICE & REPAIR MANUAL ITB/ITCB ICB/TWINInfusion Series BUNN-O-MATIC CORPORATIONBUNN-O-MATIC COMMERCIAL PRODUCT WARRANTY CONTENTS INTRODUCTIONTROUBLESHOOTING Exercise extreme caution when servicing electrical equipmentFollow recommended service procedures Replace all protective shields or safety noticesTROUBLESHOOTING cont REFILL CIRCUIT PROBLEM PROBABLE CAUSEREMEDY Remove Level Probe and checkTROUBLESHOOTING cont HEATING CIRCUIT PROBLEMInspect probe and tank assembly Remove the tank lid and clean inTROUBLESHOOTING cont BREWING CIRCUIT PROBLEMdisable the brew lockout feature NOTE Volume adjustments must beTROUBLESHOOTING cont BREWING CIRCUIT contPROBLEM PROBABLE CAUSEDIAGNOSTICS MESSAGEPROBABLE CAUSE REMEDYCOMPONENT ACCESS FIG. 10-1 ICB COMPONENT ACCESSFIG. 10-2 ITB/ITCB COMPONENT ACCESS FIG. 10-3 ICB TWIN COMPONENT ACCESSTest Procedures Check for Power to boardRemoval and Replacement Faceplate Removal and ReplacementMEMBRANE SWITCH FIG. 12-1 MEMBRANE SWITCH LocationFIG. 12-2 MEMBRANE SWITCH CONTINUITY Test ProceduresBREW VALVE EARLY MODELS AND BYPASS VALVE ON ALL ICBs FIG. 13-1 EARLY BREW VALVE LocationIf no sound is heard as described, proceed to #4 FIG. 13-2 EXPLODED VIEWBREW VALVE LATE MODELS FIG. 14-1 LATE MODEL BREW VALVE Location FIG. 14-2 LATE MODEL BREW VALVETest Procedures Removal and ReplacementDisassembly REFILL VALVES FIG. 15-1 REFILL VALVES LocationIf voltage is present, proceed to # If the sound is not heard as described, pro- ceed to #REFILL VALVES EARLY ICBEARLY ITCB CURRENT ICB & & ITBTANK HEATERS FIG. 17-1 ICB TWIN TANK HEATERS LocationFIG. 17-2 DV TANK HEATERS Test ProceduresLIMIT THERMOSTAT FIG. 18-1 LIMIT THERMOSTATLocation The limit thermostat is located on the tank lid on theFIG. 19-2 TEMPERATURE PROBE FIG. 19-3 TESTING TEMPERATURE PROBE Removal and Replacement CONTINUEDTEMPERATURE PROBE FIG. 19-1 TEMPERATURE PROBE Location Test ProceduresTEMPERATURE PROBE Removal and Replacement CalibrationFIG. 20-1 CALIBRATE TEMP PROBE FIG. 20-2 CALIBRATIONVOLTAGE SELECTOR SWITCH FIG. 21-1 VOLTAGE SELECTOR SWITCH Location Test ProcedureFIG. 21-2 VOLTAGE SELECTOR SWITCH TERMINALS Removal and ReplacementPOWER SWITCH FIG. 22-1 POWER SWITCH ICB SHOWN Location FIG. 22-2 ROCKER SWITCHTest Procedure Removal and ReplacementSCHEMATIC WIRING DIAGRAM iTCBA, iTCBB 200V AC 2 WIRE230V AC 2 WIRE SINGLE PHASESCHEMATIC WIRING DIAGRAM ITCB-DV & ITCB-C-DV120V AC 2 WIRE 120/208V AC 3 WIREWITH FACTORY SWEETENER SCHEMATIC WIRING DIAGRAM120V AC 2 WIRE 120/208V AC 3 WIRE 120/240V AC 3 WIRE SINGLE PHASE ITCB-DV & ITCB-C-DVSCHEMATIC WIRING DIAGRAM ICB-DV 120V AC 2 WIRE 120/208V AC 3 WIRE 120/240V AC 3 WIRE SINGLE PHASESCHEMATIC WIRING DIAGRAM ICB TWIN 3 WIRE + GNDSINGLE PHASE 120/208 OR 120/240SCHEMATIC WIRING DIAGRAM iCBA, iCBB 200V AC 2 WIRE 230V AC 2 WIRE SINGLE PHASESCHEMATIC WIRING DIAGRAM ICB TWIN 230V Chassis Ground TERM 2 WIRE + GND SINGLE PHASE230 VOLTS AC SCHEMATIC WIRING DIAGRAM ITB 120V AC 2 WIRE + GROUND SINGLE PHASESINGLE & DUAL DILUTION MODELS AND MODELS w/OPTIONAL SWEETENER