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Bunn TU3 User Manual

Bunn TU3
32 pages
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TU3
HOT
LIQUID
!
CAUTION
OPERATING & SERVICE MANUAL
BUNN-O-MATIC CORPORATION
POST OFFICE BOX 3227
SPRINGFIELD, ILLINOIS 62708-3227
PHONE: (217) 529-6601 FAX: (217) 529-6644
www.bunnomatic.com
10225.0000N 03/04 ©1987 Bunn-O-Matic Corporation

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Bunn TU3 Specifications

General IconGeneral
ModelTU3
Capacity3 Gallons
Water Tank Capacity3 Gallons
OutputUp to 3 gallons per hour
Voltage120V
CategoryKitchen Appliances
Product TypeCoffee Brewer
TypeCoffee Maker
MaterialPlastic
Brew TimeApproximately 10 minutes

Summary

User Notices

General Safety Warnings

Critical safety instructions for operation and potential hazards.

Installation Compliance

Requirements for installation based on plumbing and food safety codes.

Hazard Warning Labels

Identifies important warning labels on the equipment for user safety.

Electrical and Plumbing Requirements

Electrical Specifications

Details voltage, phase, and amperage requirements for brewer operation.

Electrical Hook-Up Procedure

Step-by-step guide for safely connecting the brewer to the electrical supply.

Water Supply Requirements

Specifies required water pressure, line size, and fitting type for connection.

Plumbing Installation Steps

Instructions for connecting the brewer to the water supply line.

Initial Set-Up

Water Tank Filling and Initial Brew

Procedures for filling the water tank and performing initial brew cycles.

Dilution Volume Calibration

Steps to adjust and set the correct dilution volumes for brewing.

Final Setup and First Tea Brew

Completing setup and preparing for the first batch of brewed tea.

Brew Volume Adjustment

Modifying Batch Volume

Adjusting brew volume settings by increasing brew time.

Setting Fixed Batch Volume

Establishing a specific batch volume by setting brew time.

Lock Programming Feature

Enabling a feature to prevent unauthorized changes to brew time settings.

Auto Sweetener Setup

Connecting Sweetener System

Instructions for connecting the sweetener bag-in-box system.

Operating Controls

ON/OFF Switch Function

Describes the operation of the main power switch.

Start Switch Function

Explains how to initiate a brew cycle using the start switch.

Selector Switch (Sweetener Models)

Operation of the switch for unsweetened or sweetened brews.

Cleaning Procedures

Daily Brewer Cleaning

Routine cleaning steps for the brew funnel and sprayhead.

Auto Sweetener Cleaning

Sweetener System Flush

Weekly procedure to clean the sweetener delivery system.

Tea Brewing Process

Preparing for Brew

Loading filter, tea leaves, and positioning funnel and server.

Executing Brew Cycle

Steps to start and monitor the tea brewing process.

Troubleshooting Guide

Brew Cycle Issues

Diagnosing and resolving problems with the brew cycle not starting.

Water Temperature Problems

Identifying causes and solutions when water is not hot.

Dilution Cycle Failures

Troubleshooting issues preventing the dilution cycle from starting.

Troubleshooting Beverage Levels

Inconsistent Beverage Dispensing

Addressing issues causing variable beverage levels in the dispenser.

Consistent Beverage Level Issues

Resolving problems with consistently high or low beverage levels.

Troubleshooting Operational Issues

Steaming and Dripping Problems

Diagnosing spitting, excessive steaming, and dripping from the sprayhead.

Water Flow Control Issues

Resolving problems related to continuous water flow into the tank.

Troubleshooting Dispensing and Quality

Dispenser Overflow Issues

Troubleshooting causes for the beverage overflowing the dispenser.

Beverage Quality Problems

Addressing issues like weak beverage due to filter, tea, or water temperature.

Troubleshooting Final Issues

Tea Leaf Residue

Resolving issues where dry tea leaves remain in the funnel after brewing.

Unusual Brewer Noises

Identifying causes for the brewer making unexpected noises during operation.

Service and Component Diagnostics

Brew Solenoid Valve Service

Testing and replacing the brew solenoid valve.

Brew Timer Service (Early Models)

Procedures for testing and replacing the early model brew timer.

Digital Brew Timer Service (Late Models)

Procedures for testing and replacing the late model digital brew timer.

Control Thermostat Service

Testing and replacing the control thermostat.

Dilution Solenoid Valve Service

Testing and replacing the dilution solenoid valve.

Dilution Timer Service

Procedures for testing and replacing the dilution timer.

Limit Thermostat Service

Testing and replacing the limit thermostat.

ON/OFF Switch Service

Testing and replacing the main ON/OFF or selector switch.

Start Switch Service

Testing and replacing the brew start switch.

Sweetener Solenoid Valve Service

Testing and replacing the optional sweetener solenoid valve.

Tank Heater Service

Testing and replacing the tank heater element.

Schematic Wiring Diagram (T3/TU3)

Schematic Wiring Diagram (Half-Batch Models)

Schematic Wiring Diagram (Sweetener Models)

Schematic Wiring Diagram (240V Half-Batch)

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