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Bunn HC-3 service manual SERIAL # HC00025000 - UP, BUNN HC-2, Bunn-O-Matic Corporation

Models: HC-3

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BUNN® HC-2

HC-3

(SERIAL # HC00025000 - UP)

DISCONTINUED VERSION

The information in this manual

is no longer current.

OPERATING & SERVICE MANUAL

BUNN-O-MATIC CORPORATION

POST OFFICE BOX 3227

SPRINGFIELD, ILLINOIS 62708-3227

PHONE: (217) 529-6601 FAX: (217) 529-6644

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Bunn HC-3 service manual SERIAL # HC00025000 - UP, BUNN HC-2, DISCONTINUED VERSION The information in this manual

Contents

BUNN HC-2 SERIAL # HC00025000 - UPHC-3 DISCONTINUED VERSION The information in this manualINTRODUCTION WARRANTY26525.0000 USER NOTICES12368.0002 27620.0000ELECTRICAL REQUIREMENTS INITIAL SET-UPELECTRICAL HOOK-UP PLUMBING REQUIREMENTSADJUSTMENTS CLEANINGINITIAL fill & heat DISPENSER USEDRAINING THE HOT WATER TANK TROUBLESHOOTINGHOPPER DISPENSE RATE OF PRODUCT PROBLEM TROUBLESHOOTING contPROBABLE CAUSE REMEDYRefer to Service - Limit Thermo TROUBLESHOOTING cont PROBLEMtesting procedures. See page PROBABLE CAUSEPROBLEM TROUBLESHOOTING contPROBABLE CAUSE REMEDYPROBLEM TROUBLESHOOTING contPROBABLE CAUSE REMEDYRefer to Service - Lamp, see page TROUBLESHOOTING CONT PROBLEMRefer to Service - Lamp Holder for Remove and clean lime off the tankCOMPONENT ACCESS SERVICEContents AUGER DRIVE COMPONENTSSERVICE AUGER DRIVE COMPONENTS contAUGER DRIVE COMPONENTS cont SERVICE contSERVICE cont BALLAST1. Disconnect the dispenser from the power source BLK to Terminal BlockSERVICE cont CONTROL THERMOSTATMECHANICAL SERVICE cont CONTROL THERMOSTAT contFIG. 7 THERMOSTAT TERMINALS SERVICE cont DISPENSE SWITCHFIG. 9 DISPENSE SWITCH CONNECTORS SERVICE cont SERVICE cont FROTHER AND WHIPPER MOTORFIG. 11 FROTHER AND WHIPPER MOTOR FIG. 12 MIXING/WHIPPER CHAMBERSERVICE cont FROTHER AND WHIPPER MOTOR contSERVICE cont HOPPER DELAY BOARDSERVICE cont HOT/COLD SWITCH OptionalWHI/BRN to Main Harness WHI/RED to Main Harness WHI/YEL to Cold SolenoidLAMP HOLDER LAMP REPLACEMENT Refer to FigSERVICE cont SERVICE cont LAMP STARTER and SOCKET 120V, 120/208V & 120/240V Models OnlySERVICE cont LEVEL CONTROL BOARD AND LEVEL PROBESERVICE cont LIMIT THERMOSTATLEVEL CONTROL BOARD AND LEVEL PROBE cont SERVICE cont OVERFLOW PROTECTION SWITCHSERVICE cont RUN/RINSE SWITCHSERVICE cont SOLENOID VALVE COLD WATER - OPTIONALSERVICE cont SOLENOID VALVES DISPENSESOLENOID VALVE COLD WATER - OPTIONAL cont SOLENOID VALVE INLET SOLENOID VALVES DISPENSE contSERVICE cont TANK HEATER SOLENOID VALVE INLET contSERVICE cont WHI from Terminal Block VIO from Liquid Level BoardTANK HEATER cont TANK HEATER SWITCHSERVICE cont SERVICE cont TANK HEATER SWITCH contTRANSFORMER 240V TWO WIRE MODELS ONLY SERVICE cont TRANSFORMER 240V TWO WIRE MODELSONLYcont120/208-240 VOLTS AC - 3 WIRE SCHEMATIC WIRING DIAGRAM HC-2, & HC-3Configuration 120 VOLTS AC - 2 WIRE OR2 WIRE SCHEMATIC WIRING DIAGRAM HCA-2, & HCA-3Configuration SINGLE PHASE