Bunn 41722.0000A manual Schematic Wiring Diagram TB3Q W/SWEETENER & Empty BAG Detect

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SCHEMATIC WIRING DIAGRAM TB3Q W/SWEETENER & EMPTY BAG DETECT

L1								GREEN		N
LIMIT			THERMOSTAT
THERMOSTAT						TANK HEATER
BLK	BLU/BLK				BLK	TANK HEATER				WHI
BLK	BLU/BLK				BLK					WHI
WHI						"KEEP WARM" HEATER				WHI
WHI										WHI
						LOW PRESSURE
						SWITCH
				WHI/VIO		COM.	N.O.	BLU		WHI
				WHI/VIO				BLU		WHI
								RELAY
UNSWEET/OFF/SWEET		WHI			WHI/VIO		BLK		2	WHI
		WHI			WHI/VIO		BLK			WHI
					SOLD OUT INDICATOR				7
		WHI/VIO						5	7
BLK		WHI/VIO						5
BLK				WHI/VIO					START
			1	WHI/VIO					START
			1	WHI/BLK
		BREW	2	WHI/ORA
		BREW	3	WHI/ORA
		TIMER	3	WHI/GRN
		TIMER	4	WHI/GRN
			4	WHI/YEL
			5	WHI/YEL
			5
	BRN/WHI		SOL	WHI/VIO		SOL	WHI/GRN
			SOL			SOL
			SWTNR
			SWTNR
						SOL

WHI/BLU	120 VOLTS AC
	2 WIRE
37234.0010A 04/08 © 2008 BUNN-O-MATIC CORPORATION	SINGLE PHASE
37234.0010A 04/08 © 2008 BUNN-O-MATIC CORPORATION

SCHEMATIC WIRING DIAGRAM TB3A

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

230 VOLTS AC
2 WIRE
SINGLE PHASE	37234.0011A 10/08 © 2008 BUNN-O-MATIC CORPORATION
	37234.0011A 10/08 © 2008 BUNN-O-MATIC CORPORATION

Page 25	41722 070209

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Contents Phone 217 529-6601 FAX 217 TB3/TB6 SeriesBUNN-O-MATIC Commercial Product Warranty Contents Brew cycle will not start No water Probable Cause RemedyTo the brewer Brew cycle will not start Water is not hot ProblemProbable Cause Control Thermostat Tank HeaterSurfaces can initiate corrosive Inconsistent beverage levelReactions resulting in serious 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 Adjust the control thermostat as required Disconnect the control thermostat wiresLimit Thermostat Remove all wires from limit thermostat termi- nalsTank 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 Through four when the switch is in the oposite Position Switch is located on the front control panelSwitch If continuity is present as described, replace the wires37080.0001to 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 TriacsTerminals ½ batch connector Digital Brew Timer TB3Q & TB6QWhite Red Neutral L2 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