Bunn 41722.0000A manual Schematic Wiring Diagram TB3Q

Page 24

SCHEMATIC WIRING DIAGRAM

TB3B W/HALF-BATCH

L1							Earth Ground				N
							Earth Ground
						GRN
	LIMIT									SWITCH &
	LIMIT									THERMOSTAT
THERMOSTAT					Chassis Ground					THERMOSTAT
THERMOSTAT					Chassis Ground					BLK	WHI
BLK		BLU/BLK								BLK	WHI
											TANK HEATER
WHI											WHI
		HALF/OFF/FULL SWITCH									"KEEP WARM" HEATER
BLK		HALF/OFF/FULL SWITCH
BLK
SW1A		SW1B			SW1C				SW1D
WHI/VIO		½ BATCH
WHI/VIO
			J1	BREW/DILUTION
		PNK	1
		PNK
		GRY	3			TIMER
			3

				6	5	4	3	2	1		WHI
WHI/VIO											WHI
WHI/VIO
	DILUTION									OPTIONAL
WHI/VIO	SOL	WHI/BLU								READY
	SOL									INDICATOR

BREW

WHI/VIO

WHI/GRN

BLU/BLK

BLK

SOL

START

WHI/ORN

SWITCH

100 VOLTS AC

WHI/YEL

120 VOLTS AC

2 WIRE + GND

SINGLE PHASE

37234.0008B 10/08 © 2008 BUNN-O-MATIC CORPORATION

SCHEMATIC WIRING DIAGRAM TB3Q

				POWER CORD	GRN
L1	LIMIT		Earth Ground	SWITCH &	Chassis Ground	N
	LIMIT			SWITCH &
	THERMOSTAT			THERMOSTAT	BLU	WHI
	BLK		BLU/BLK		BLK	WHI
	WHI				TANK HEATER	WHI
	WHI					WHI
	BLK	SW1	"KEEP WARM HEATER"	BLU/BLK		WHI
	BLK				BLK	WHI
			WHI/VIO		BLK	WHI
			WHI/VIO			WHI
			SOL		OPTIONAL
					READY
		1	WHI/VIO		INDICATOR
		1	WHI
	BREW	2	WHI
	BREW	2	WHI/ORA
	TIMER	3	WHI/GRN
		4	WHI/YEL	START SWITCH
		5

37234.0009B 06/08 © 2008 BUNN-O-MATIC CORPORATION

120 VOLTS AC

2 WIRE

SINGLE PHASE

Page 24	41722 070209

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Contents TB3/TB6 Series Phone 217 529-6601 FAX 217BUNN-O-MATIC Commercial Product Warranty Contents Probable Cause Remedy Brew cycle will not start No waterTo the brewer Problem Brew cycle will not start Water is not hotProbable Cause Control Thermostat Tank HeaterInconsistent beverage level Surfaces can initiate corrosiveReactions resulting in serious LeaksRefer to Service Timer for test- ing procedures Spitting or excessive steaming Dripping from sprayheadBeverage overflows dispenser Dry coffee grounds remain Funnel Brewer is making unusal noisesPlumbing Lines Water Supply Problem Probable Cause Remedy Brewer is making unusal noises Tank HeaterCont Tank heater Component Access Control ThermostatLocation 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 ThermostatDisconnect the brewer from the power supply Tank Heater1680W-120V 1680W-100V 1680W-230V 29.0 33.7 Lighted ON/OFF Switch TB3/TB3Q Refer to -2 when reconnecting the wiresOrange light Switch is located on the front control panel Through four when the switch is in the oposite PositionSwitch 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 solenoidDigital Brew Timer TB3Q & TB6Q Terminals ½ batch connectorWhite 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