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Bunn ITB/ITCB manual Schematic Wiring Diagram Icb Twin, 120/208 OR 120/240, Volts Ac, Wire + Gnd

Models: ITB/ITCB ICB/TWIN

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SCHEMATIC WIRING DIAGRAM ICB TWIN

SCHEMATIC WIRING DIAGRAM ICB TWIN

L1 L2 N

								GRN	BLK	RED	WHI
								GRN
								MAIN ON/OFF SWITCH
								(Late Models only)
								BLK-18
								BLK-14
						LIMIT
						THERMOSTAT	BLU-14	TANK HEATER
						BLU-14		TANK HEATER
						BLU-14		RED-14
				LEFT		LIMIT
			FUNNEL SENSOR			LIMIT
		VIO	FUNNEL SENSOR			THERMOSTAT
	J20-1		1	3		THERMOSTAT	BLU-14	TANK HEATER
	J20-1		1	3		BLU-14		TANK HEATER
						BLU-14		RED-14
	J20-3	WHI/VIO
	J20-3							LEFT
				RIGHT				LEFT
				RIGHT				BYPASS			WHI
		YEL	FUNNEL SENSOR				SOL	BYPASS			WHI
	J21-1		1	3			SOL
			1	3		RIGHT


#	J21-3	WHI/YEL				DISPENSE					WHI
#	J21-3	BLU-14				SOL
/	COM	BLU-14
.	COM	BLK-14						LEFT
.	N.O.	BLK-14						LEFT
4	N.O.	WHI/RED						DISPENSE			WHI
2	J17-1						SOL	DISPENSE
2	J17-1						SOL
/		ORN
,		WHI/GRN						REFILL			WHI
0								REFILL			WHI
#		WHI/BLU						SOL
#	J17-5	WHI/BLU
"	J17-5	BLU			SOL	RIGHT
"		BLU				RIGHT
/		BLU/BLK				FUNNEL LOCK
/		BLU/BLK				FUNNEL LOCK		RIGHT
!		BLK				(Optional)		RIGHT			WHI
2		BLK					SOL	BYPASS			WHI
$	J17-10	GRY					SOL
		GRY									WHI
		WHI
		WHI

			BRN/BLK					SOL		LEFT
			BRN/BLK							LEFT
J17-14			BRN/WHI							FUNNEL LOCK
J17-14			BRN/WHI							FUNNEL LOCK
J15-1										(Optional)
										(Optional)

TRANSFORMER

10VA

J15-5

J13-1	WHI
J13-1	BLK
	BLK	LEVEL
		LEVEL
		PROBE
J3-1	PNK	GRN
J3-1

		t
J3-5
			CONTROL PANEL ASSY
J3-8		1		RIGHT	RIGHT
		1		RIGHT	RIGHT
J2-1				FULL	HALF
J2-1
				RIGHT	RIGHT
				BREW	ON/OFF
J2-5				C
J2-5
				RIGHT	RIGHT
				BREW	PROG
				B
J2-10				PROG	RIGHT
				“Control”	BREW
					A
J2-15			LEFT	PROG	PROG
J2-15			ON/OFF	“Digital”	“Brewer”
			ON/OFF	“Digital”	“Brewer”
			LEFT
			FULL	LEFT	LEFT
				BREW	PROG
J2-20			LEFT	C
J2-20			HALF
			HALF		LEFT
J2-22				LEFT	LEFT
J2-22				LEFT	BREW
			RIGHT	ON/OFF	BREW
		22	RIGHT	ON/OFF	B
J16-1	GRN		ON/OFF		B
	GRN		ON/OFF
	WHI
	WHI	MEMORY	RIGHT		LEFT
				LEFT	LEFT
				LEFT	BREW
	RED	BOARD	FULL	FULL	BREW
	RED	BOARD	FULL	FULL	A
J16-5	BLK				A
	BLK		RIGHT


		(Early Models only)	HALF		LEFT
		(Early Models only)			HALF
					HALF

120/208 OR 120/240	STATIC
VOLTS AC	SHIELD
VOLTS AC
3 WIRE + GND
SINGLE PHASE

37299.0001C 02/07 ©2005 BUNN-O-MATIC CORPORATION

27	42461 0911809

Image 27

Bunn ITB/ITCB, ICB/TWIN manual Schematic Wiring Diagram Icb Twin, 120/208 OR 120/240, Volts Ac, Wire + Gnd, Single Phase

Contents

BUNN-O-MATIC CORPORATION SERVICE & REPAIR MANUALITB/ITCB ICB/TWIN Infusion SeriesBUNN-O-MATIC COMMERCIAL PRODUCT WARRANTY INTRODUCTION CONTENTSReplace all protective shields or safety notices TROUBLESHOOTINGExercise extreme caution when servicing electrical equipment Follow recommended service proceduresRemove Level Probe and check TROUBLESHOOTING cont REFILL CIRCUIT PROBLEMPROBABLE CAUSE REMEDYRemove the tank lid and clean in TROUBLESHOOTING cont HEATING CIRCUITPROBLEM Inspect probe and tank assemblyNOTE Volume adjustments must be TROUBLESHOOTING cont BREWING CIRCUITPROBLEM disable the brew lockout featurePROBABLE CAUSE TROUBLESHOOTING contBREWING CIRCUIT cont PROBLEMREMEDY DIAGNOSTICSMESSAGE PROBABLE CAUSEFIG. 10-3 ICB TWIN COMPONENT ACCESS COMPONENT ACCESSFIG. 10-1 ICB COMPONENT ACCESS FIG. 10-2 ITB/ITCB COMPONENT ACCESSFaceplate Removal and Replacement Test ProceduresCheck for Power to board Removal and ReplacementTest Procedures MEMBRANE SWITCHFIG. 12-1 MEMBRANE SWITCH Location FIG. 12-2 MEMBRANE SWITCH CONTINUITYFIG. 13-2 EXPLODED VIEW BREW VALVE EARLY MODELS AND BYPASS VALVE ON ALL ICBsFIG. 13-1 EARLY BREW VALVE Location If no sound is heard as described, proceed to #4Removal and Replacement BREW VALVE LATE MODELS FIG. 14-1 LATE MODEL BREW VALVE LocationFIG. 14-2 LATE MODEL BREW VALVE Test ProceduresIf the sound is not heard as described, pro- ceed to # DisassemblyREFILL VALVES FIG. 15-1 REFILL VALVES Location If voltage is present, proceed to #CURRENT ICB & & ITB REFILL VALVESEARLY ICB EARLY ITCBTest Procedures TANK HEATERSFIG. 17-1 ICB TWIN TANK HEATERS Location FIG. 17-2 DV TANK HEATERSThe limit thermostat is located on the tank lid on the LIMIT THERMOSTATFIG. 18-1 LIMIT THERMOSTAT LocationTest Procedures FIG. 19-2 TEMPERATURE PROBE FIG. 19-3 TESTING TEMPERATURE PROBERemoval and Replacement CONTINUED TEMPERATURE PROBE FIG. 19-1 TEMPERATURE PROBE LocationFIG. 20-2 CALIBRATION TEMPERATURE PROBE Removal and ReplacementCalibration FIG. 20-1 CALIBRATE TEMP PROBERemoval and Replacement VOLTAGE SELECTOR SWITCH FIG. 21-1 VOLTAGE SELECTOR SWITCH LocationTest Procedure FIG. 21-2 VOLTAGE SELECTOR SWITCH TERMINALSRemoval and Replacement POWER SWITCH FIG. 22-1 POWER SWITCH ICB SHOWN LocationFIG. 22-2 ROCKER SWITCH Test ProcedureSINGLE PHASE SCHEMATIC WIRING DIAGRAM iTCBA, iTCBB200V AC 2 WIRE 230V AC 2 WIRE120/208V AC 3 WIRE SCHEMATIC WIRING DIAGRAMITCB-DV & ITCB-C-DV 120V AC 2 WIREITCB-DV & ITCB-C-DV WITH FACTORY SWEETENERSCHEMATIC WIRING DIAGRAM 120V AC 2 WIRE 120/208V AC 3 WIRE 120/240V AC 3 WIRE SINGLE PHASE120V AC 2 WIRE 120/208V AC 3 WIRE 120/240V AC 3 WIRE SINGLE PHASE SCHEMATIC WIRING DIAGRAM ICB-DV120/208 OR 120/240 SCHEMATIC WIRING DIAGRAM ICB TWIN3 WIRE + GND SINGLE PHASE200V AC 2 WIRE 230V AC 2 WIRE SINGLE PHASE SCHEMATIC WIRING DIAGRAM iCBA, iCBBSCHEMATIC 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