Bunn ITB/ITCB, ICB/TWIN manual Introduction

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INTRODUCTION

This equipment will brew a half-gallon batch of coffee into an awaiting dispenser. It can be easily conﬁgured for 120V 15 amp, 120/208V 20 amp or 120/240V 20 amp. The brewer may have a hot water faucet for allied beverage use. It is only for indoor use on a sturdy counter or shelf.

	CONTENTS
Warranty	2
Contents	3
Troubleshooting	4
Diagnostic Displays	9
Access	10
Control Board	11
Membrane Switch	12
Brew Valves (Early)	13
Brew Valves (Current)	14
Reﬁll Valves	15
Tank Heaters	17
Limit Thermostat	18
Temperature Probe	19
DV Selector Switch	21
On/Off Switch	22
Schematic Wiring Diagrams	23

3	42461 0911809

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Contents ITB/ITCB ICB/TWIN BUNN-O-MATIC Commercial Product Warranty Introduction Control Boards TroubleshootingRemedy TroubleshootingRefill Circuit Problem Probable CauseHeating Circuit Problem Probable Cause Remedy Brewing Circuit Problem Probable Cause Remedy Problem Probable Cause Remedy Troubleshooting Brewing CircuitMessage Probable Cause Remedy DiagnosticsICB Component Access Component AccessControl Board Membrane Switch Continuity Membrane SwitchExploded View Early Brew ValveLate Model Brew Valve Brew Valve Late ModelsRefill Valves DisassemblyEarly Itcb Refill Valves Early ICBICB Twin Tank Heaters Tank HeatersLimit Thermostats Limit ThermostatTesting Temperature Probe Temperature ProbeCalibrate Temp Probe CalibrationTest Procedure Voltage Selector SwitchTest Procedure Removal and Replacement Power SwitchSchematic Wiring Diagram iTCBA, iTCBB Schematic Wiring Diagram With Factory Sweetener Schematic Wiring Diagram ICB-DV Schematic Wiring Diagram ICB Twin Schematic Wiring Diagram iCBA, iCBB Schematic Wiring Diagram ICB Twin 230V Chassis Ground Term Schematic Wiring Diagram ITB