Manuals / Bunn / Kitchen Appliance / Coffeemaker

Bunn U3A Introduction, User Notices, Very Hot Water Use With Care, Slowly, Surfaces, Lhi Qou Itd

Models: U3A U3

1 42

Download 42 pages 23.98 Kb

Page 3

INTRODUCTION

INTRODUCTION

This brewer will brew a three gallon batch of coffee into each reservoir (one at a time). Each reservoir has its own dispensing faucet(s).The brewer also has a hot water faucet(s) for allied beverage use. It is only for indoor use on a sturdy counter where ambient temperature is in the range of 10-30°C (50-85°F). Brewer to be installed at a location where it can be overseen by trained personnel.

USER NOTICES

Carefully read and follow all notices on the brewer and in this manual. They were written for your protection. All notices on the brewer are to be kept in good condition. Replace any unreadable or damaged labels.

WARNING

Fill water tank before turning - on - thermostat or connecting appliance to power source.

Use only on a properly protected circuit capable of the rated load.

Electrically ground the chassis. Follow national/local electrical codes.

Do not use near combustibles.

FAILURE TO COMPLY RISKS EQUIPMENT

DAMAGE, FIRE, OR SHOCK HAZARD

READ THE ENTIRE OPERATING MANUAL

BEFORE BUYING OR USING THIS PRODUCT

THIS APPLIANCE IS HEATED WHENEVER

CONNECTED TO A POWER SOURCE

00831.0000F 3/98 ©1998 BUNN-O-MATIC CORPORATION

#00831.0000

WARNING

Very Hot Water Use With Care!

#12593.0000

CAUTION

HOT

SURFACES

#12555.0000

This equipment must be installed to comply with the International Plumbing Code of the International Code Council and the Food Code Manual of the Food and Drug Adminis- tration (FDA). For models installed outside the U.S.A., comply with the applicable Plumbing /Sanitation Code.

#00656.0000

#37881.0000

WARNING

REMOVE FUNNEL

SLOWLY

#03408.0000

WARNING

LHI QOU ITD

#03409.0000

ATTENTION: TURN OFF WHEN UNATTENDED

#00878.0000

#00824.0001

Page 3	10060	011708

Image 3

Bunn U3A Introduction, User Notices, Very Hot Water Use With Care, Slowly, Surfaces, Lhi Qou Itd, Remove Funnel, Page

Contents

OPERATING & SERVICE MANUAL U3 U3ABUNN-O-MATIC CORPORATION Page BUNN-O-MATIC COMMERCIAL PRODUCT WARRANTYVery Hot Water Use With Care INTRODUCTIONUSER NOTICES ATTENTION TURN OFF WHEN UNATTENDEDELECTRICAL REQUIREMENTS ELECTRICAL INSTALLATION INSTRUCTIONSINITIAL SETUP CE REQUIREMENTSPLUMBING REQUIREMENTS INITIAL SETUP cont ADJUSTING BREW VOLUMESVolumes CLEANING COFFEE BREWINGFILTER HOLDER TROUBLESHOOTING PROBLEMPROBABLE CAUSE PROBABLE CAUSE TROUBLESHOOTING cont PROBLEMREMEDY TROUBLESHOOTING cont PROBLEMPROBABLE CAUSE REMEDY TROUBLESHOOTING cont PROBLEMRefer to Service - Contactor for testing procedures. See page PROBABLE CAUSEREMEDY TROUBLESHOOTING cont PROBLEMFunnels overflow cont Coffee reservoir overflows PROBABLE CAUSESERVICE COMPONENT ACCESSContents Wire Models and 440V Four Wire Models SERVICE contCONTACTOR SERVICE cont2A. 120/208V, 120/240V, 380V THREE WIRE MODELS BLK Thermal Fuse to Right Tank Heater BLK to Terminal Block L1 SERVICE cont CONTACTOR contBLK to Right Tank Tank HeaterFIG. 6 CONTROL THERMOSTAT SERVICE cont CONTROL THERMOSTATDisconnect the wires from the control thermo Install thermostat and mounting bracket on theSERVICE cont FIG.8 FUSE AND FUSE HILDERFIG. 9 FUSE HOLDER TERMINALS SERVICE cont LIMIT THERMOSTAT Disconnect the brewer from the power sourceWith an ohmmeter, check for continuity across Voltage SERVICE cont LIQUID LEVEL BOARD AND LEVEL PROBELIQUID LEVEL BOARD AND LEVEL PROBE cont SERVICE contSERVICE cont ON/OFF SWITCH RED to Start Switch, Brew Timer & Liquid Level BoardFIG. 15 ON/OFF SWITCH TERMINALS SERVICE cont PUMP ASSEMBLY SERVICE cont RELAY BREWERS W/BREW LOCKOUT BLU from SERVICE cont RELAY BREWERS W/BREW LOCKOUTSERVICE cont SELECTOR SWITCH HALF BATCH OPTION SOLENOID SERVICE cont2. A For 120/208 volt and 120/240 volt three wire, single phase models, 380 volt three wire, three phase models and 380 volt, 440 volt four wire, three phase models, disconnect the black wire from the liquid level board #2 and the white wire on the solenoid. With a voltmeter, check the voltage across the black and the white wire. Connect the brewer to the power source. The indication must be SERVICE cont SOLENOID FIG. 24 START SWITCH BREW SERVICE cont START SWITCH BREWSERVICE cont TANK HEATERS LEFTFIG. 27 TANK HEATER TERMINALS SERVICE cont THERMAL FUSES 230V-CE MODELS ONLY TIMER Early ModelsFIG. 28 THERMAL FUSES To Three Pin Female SERVICE cont TIMER Early ModelscontSERVICE cont DIGITAL TIMER Late Models FIG. 33 DIGITAL TIMER TERMINALS SERVICE cont DIGITAL TIMER Late ModelsNOTE All volume settings must be done with the sprayhead installed NOTE Half-Batch and full batch settings must each be set separatelySERVICE cont TRANSFORMER 380V THREE WIRE MODELS ONLYFIG. 35 TRANSFORMER TERMINALS FIG. 36 MASTER ON/OFF SWITCH LOC SERVICE cont MASTER ON/OFF SWITCH Late Models10060 120/208 VOLTS AC 120/240 VOLTS AC 3 WIRE + GND SINGLE PHASEMAIN ON/OFF SWITCH Late Models only PagePage 10060080900 080900 SCHEMATIC WIRING DIAGRAM U3A & U38A BREWERS PRIOR TO U300004095Page 10060080900 SCHEMATIC WIRING DIAGRAM U3A - CE BREWERS S/N U300004095 - UPPage 10060080900 SCHEMATIC WIRING DIAGRAM U3833Page 10060080900 SCHEMATIC WIRING DIGRAM U3833Page 10060