Schematic Wiring Diagram Single TF DBC | Bunn S/N SNG0033000 & UP

LIMIT THERMOSTAT

BLK-14 BLK-14

SCHEMATIC WIRING DIAGRAM
SINGLE TF DBC	GRN
	GRN

MODELS WITH MAIN ON/OFF SWITCH ONLY

BLK-14	BLK-14	BLK-14
RED-14	RED-14	RED-14

	TRIAC		TANK HEATER
MT2	MT 1	BLU-14

L1	N	L2
BLK	WHI	RED
	WHI

			SWITCH UNIT ASSEMBLY
					REFILL
					SOL	WHI
					SOL
	FUNNEL SENSOR			BYPASS
	FUNNEL SENSOR					WHI
	VIO			SOL		WHI
	VIO			SOL
	WHI/VIO		VIO		BREW
			VIO
					SOL	WHI
					SOL
			WHI/GRN
			GRY	RED	RED
	WHI			RED	RED
	WHI	CONTROL PC BOARD		N.C.
		CONTROL PC BOARD	TAN	N.C.
	PNK		TAN		OVERFLOW
			YEL		OVERFLOW
			YEL	PROTECTION SWITCH
	BLK		BLK	PROTECTION SWITCH
	BLK		BLK
	TEMP PROBE		WHI
WATER LEVEL	TEMP PROBE		BRN/WHI
PROBE	GRN		BRN/BLK
	GRN
					SOL

						FUNNEL LOCK
	Switch Unit Assembly Codes
A1	Brew	C2	Medium Batch
A2	On/Off	C3	Small Batch
B1	"Hidden" Left	D1	"Digital" Left Hidden Button
B2	"Hidden" Right	D2	"Brewer" Center Hidden Button
C1	Large Batch	D3	"Control" Right Hidden Button		120/208 OR 120/240 VOLT A.C.
		LED's			120/208 OR 120/240 VOLT A.C.
		LED's			3 WIRE + GND
	L1	Large Batch LED			3 WIRE + GND
	L1	Large Batch LED			SINGLE PHASE
	L2	Medium Batch LED			SINGLE PHASE
	L3	Small Batch LED
	L3	Small Batch LED
	L4	On/Off LED
	L4	On/Off LED		35726.0000B 02/07 © 2003 Bunn-O-Matic Corporation
				35726.0000B 02/07 © 2003 Bunn-O-Matic Corporation

Page 51	35879.1 062107

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Image 51

Bunn S/N SNG0033000 & UP manual Schematic Wiring Diagram Single TF DBC

Contents

Phone 217 529-6601 FAX 217 Single TF DBC BUNN-O-MATIC Commercial Product Warranty Table of Contents User Notices Volt ac single phase Hz models Electrical HOOK-UP37881.0002 230 volt ac Single phase, 60 Hz models Electrical Requirements Models without power cord CE Requirements Plumbing RequirementsPlumbing HOOK-UP Brew Switch Main ON/OFF SwitchBatch Selector Switches ON/OFF Switch Enable Brew Coffee Brewing Initial Setup Cleaning Glossary Programming Programming Switches Programming Switch Program Functions Level RecipesDRIP-OUT Times Level Continues to DReturns to a Program Flow Diagram Return to aContinues to Programming the Brewer Procedure for modifying units of measure Units Setting Units of Measure Procedure for Setting the Recipe SET NEW RecipeThis function allows the operator to set Brew SET NEW Recipes Sizes DONE?Refer to SET Pulse Brew for description Card Contains Recipe for Procedure to program the coffee name Review RECIPES? Noyes To exit, press Next until the display reads That Review RECIPES/MODIFY RECIPES/SET UP no Name Coffee NamesProcedure for reviewing recipes Next Screen Brew OZ Setting or Adjusting Brew VOL- Umes Review Recipes Bypass Modifying pulse brew Range 1st on time off to 4 minutes SET Pulse Brew SET Pulse Brew NO-NAME Modifyshownext SET Pulse Brew Easy Pulse Setup SET Pulse Brew Enter Times TIMES?DONE? Batches DONE? SET Preinfusion Setup Complete Enable ADS? Assign RecipesAssign Recipe ? SET Temp SET ReadyScreen Spray OZ/M Bypass OZ/M Calibrate FlowCalibrate Spray .. Press Brew to Start Procedures to calibrate the bypass flow rate Calibrate FlowStart Funnel Detect optional Procedure to set funnel detectProcedures to view/reset the brew counters Brew Counters Brew Valve Service ToolsTesting individual components outputs Procedure to test components outputs Frequency Nothing Pressed Procedure to set factory defaults Factory Defaults Possible Cause TroubleshootingTroubleshooting Procedures Screen Displayed Press ON/OFF to terminate the cycle Temperature Triac Failure ON/OFF switch was pressed after the brew cycle was startedPress ON/OFF to terminate the brew cycle Tank Heater failure Broken or not making connection Temperature Sensor ProbeWires shorted to housing, or to Water shut off to brewer Data plate within +/- 10% Equipment will not operate No power or incorrect voltageBrew switch Switch test procedures Brew Valve Switch test procedures See above or boiling Troubleshooting Problem Possible CauseOverflow Protection Switch When this condition occurs, With power removed from brewer Holding it in open state Heating Time TOO Long Limit Thermostat Troubleshooting Problem 90 psi 138 and 620 kPa Inconsistent beverage level StrainerServer Pointing towards the brewer Improper water pressure For each brew cycle Consistently high or low beverage Brew Volume adjustmentWater temperature Level in server Plumbing lines Water Supply Tank Heaters Troubleshooting Problem Possible Cause Weak beverageRemove and clean lime off tank heaters Brewer is making unusual noises Schematic Wiring Diagram Single TF DBC Schematic Wiring Diagram Wire Single Phase Schematic Wiring Diagram Single TF DBC

SCHEMATIC WIRING DIAGRAM

SINGLE TF DBC

GRN

BRN/BLK

SOL

SINGLE PHASE