Bunn 41722.0000A manual Schematic Wiring Diagram TB3Q, Volts AC Wire Single Phase

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SCHEMATIC WIRING DIAGRAM TB3Q

			(OPTIONAL)
			READY INDICATOR		GREEN
		BLU/BLK		BLK	GREEN
		BLU/BLK		BLK		N
L1	LIMIT					N
	LIMIT	SW. & THERMOSTAT
	THERMOSTAT	SW. & THERMOSTAT
	THERMOSTAT			BLK	TANK HEATER	WHI
	BLK			BLK	TANK HEATER	WHI
	BLU/BLK
	WHI					WHI
	SW1			"KEEP WARM HEATER"		WHI
						WHI
	BLK		WHI/VIO	SOL		WHI
				SOL
		1	WHI/VIO			SW2
			WHI/VIO
			WHI
	BREW	2	WHI
	BREW	2	WHI/ORA
	TIMER	3	WHI/GRN
		4	WHI/YEL
		5	WHI/YEL
		5

120 VOLTS AC

2WIRE

SINGLE PHASE

37234.0001A 08/04 © 2004 BUNN-O-MATIC CORPORATION

SCHEMATIC WIRING DIAGRAM

TB3QA

L1				GRN/YEL
	LIMIT	SW. &		L2
			THERMAL	THERMAL
		THERMOSTAT
	THERMOSTAT		FUSE	FUSE

BLK	BLU/BLK		BLK	RED
WHI			TANK HEATER	WHI
	SW1
		"KEEP WARM" HEATER		RED

					WHI/VIO
					RED
BLK	WHI/VIO	SOL	WHI/GRN	BREW	WHI/ORN
		SOL		TIMER	WHI/GRN
				TIMER	WHI/GRN	SW2
					WHI/YEL	SW2

230 VOLTS AC

2WIRE

SINGLE PHASE

37234.0003A 11/04 © 2004 BUNN-O-MATIC CORPORATION

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Contents TB3/TB6 Series Phone 217 529-6601 FAX 217BUNN-O-MATIC Commercial Product Warranty Contents Brew cycle will not start No water Probable Cause RemedyTo the brewer Probable Cause ProblemBrew cycle will not start Water is not hot Control Thermostat Tank HeaterReactions resulting in serious Inconsistent beverage levelSurfaces can initiate corrosive LeaksSpitting or excessive steaming Dripping from sprayhead Refer to Service Timer for test- ing proceduresBeverage overflows dispenser Funnel Brewer is making unusal noises Dry coffee grounds remainPlumbing Lines Water Supply Brewer is making unusal noises Tank Heater Problem Probable Cause RemedyCont Tank heater Control Thermostat Component AccessLocation Control thermostat is located in the hood Disconnect the control thermostat wires Adjust the control thermostat as requiredRemove all wires from limit thermostat termi- nals Limit ThermostatTank Heater Disconnect the brewer from the power supply1680W-120V 1680W-100V 1680W-230V 29.0 33.7 Refer to -2 when reconnecting the wires Lighted ON/OFF Switch TB3/TB3QOrange light Switch Switch is located on the front control panelThrough four when the switch is in the oposite Position If continuity is present as described, replace the wiresStart Switches 37080.0001to T. StatInlet Valves BREW/DILUTION Timer TB3 & TB6 BREW/DILUTION Timer Triacs Triacs TH-1/MV-1 Brew solenoid TH-2/MV-2 Dilution solenoidTerminals ½ batch connector Digital Brew Timer TB3Q & TB6QWhite Red Neutral L2 Digital Timer Triacs Triacs MV-2 Brew solenoid output MV-1 LineSchematic Wiring Diagram TB3Q Volts AC Wire Single PhaseSchematic 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