Bunn 41722.0000A manual Schematic Wiring Diagram TB3, TB3B, TB3-LP

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SCHEMATIC WIRING DIAGRAM TB3, TB3B, TB3-LP

	L1					Earth Ground				N
						Earth Ground
					GRN
		LIMIT							SWITCH &
		LIMIT							THERMOSTAT
	THERMOSTAT			Chassis Ground					THERMOSTAT
	THERMOSTAT		BLU/BLK	Chassis Ground					BLK	WHI
	BLK		BLU/BLK						BLK	WHI
										TANK HEATER
	WHI									WHI
	ON/OFF SWITCH		"KEEP WARM" HEATER							WHI
										WHI
	BLK		BREW/DILUTION
			BREW/DILUTION
					TIMER
			6	5	4	3	2	1		WHI
	WHI/VIO									WHI
	WHI/VIO
		DILUTION							OPTIONAL
	WHI/VIO	SOL	WHI/BLU						READY
		SOL							INDICATOR
		BREW						BLU/BLK	BLK
	WHI/VIO	BREW	WHI/GRN						START
	WHI/VIO	SOL	WHI/GRN						START
		SOL					WHI/ORN		SWITCH
									SWITCH

							WHI/YEL

100 VOLTS AC

120 VOLTS AC

2 WIRE + GND SINGLE PHASE

37234.0007A 02/08 © 2008 BUNN-O-MATIC CORPORATION

Page 23	41722 070209

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Contents Phone 217 529-6601 FAX 217 TB3/TB6 SeriesBUNN-O-MATIC Commercial Product Warranty Contents To the brewer Probable Cause RemedyBrew cycle will not start No water Control Thermostat Tank Heater ProblemBrew cycle will not start Water is not hot Probable CauseLeaks Inconsistent beverage levelSurfaces can initiate corrosive Reactions resulting in seriousBeverage overflows dispenser Refer to Service Timer for test- ing proceduresSpitting or excessive steaming Dripping from sprayhead Plumbing Lines Water Supply Dry coffee grounds remainFunnel Brewer is making unusal noises Cont Tank heater Problem Probable Cause RemedyBrewer is making unusal noises Tank Heater Location Control thermostat is located in the hood Component AccessControl Thermostat Adjust the control thermostat as required Disconnect the control thermostat wiresLimit Thermostat Remove all wires from limit thermostat termi- nals1680W-120V 1680W-100V 1680W-230V 29.0 33.7 Disconnect the brewer from the power supplyTank Heater Orange light Lighted ON/OFF Switch TB3/TB3QRefer to -2 when reconnecting the wires If continuity is present as described, replace the wires Switch is located on the front control panelThrough four when the switch is in the oposite Position Switch37080.0001to T. Stat Start SwitchesInlet Valves BREW/DILUTION Timer TB3 & TB6 Triacs TH-1/MV-1 Brew solenoid TH-2/MV-2 Dilution solenoid BREW/DILUTION Timer TriacsWhite Red Neutral L2 Digital Brew Timer TB3Q & TB6QTerminals ½ batch connector Triacs MV-2 Brew solenoid output MV-1 Line Digital Timer TriacsVolts AC Wire Single Phase Schematic Wiring Diagram TB3QSchematic Wiring Diagram TB3, TB3B, TB3-LP Schematic Wiring Diagram TB3Q Schematic Wiring Diagram TB3Q W/SWEETENER & Empty BAG Detect Schematic Wiring Diagram TB6 Schematic Wiring Diagram TB6Q