Bunn DUAL TM (Serial # DUAL010000 - Up)

Page 22

SERVICE (cont.)

Location:

The electronic control assembly (1) is located

inside the lower left front on the component bracket of

the brewer. Access will also be needed to the tempera-

ture sensor (8), liquid level probe (7) located on the

tank lid and to the triac assembly (17) located beneath

the tank.

General:

This system controls the liquid level and water

temperature of the brewer. These two functions act

independently of each other and should be tested

separately.

ELECTRONIC CONTROL ASSEMBLY

CAUTIONHOT WATER

MINUTES

BUNN-O-MATIC

P/N 2620- 120 VAC

MINUTES

BUNN-O-MATIC

P/N 2620- 120 VAC

STARTON / WARMERSELECTORREADY

READYON / WARMERSTART

1⁄2

gal

1 gal

1⁄2

gal

SELECTOR

1⁄2

gal

1 gal

1⁄2

gal

CAUTION: WARMERS AND SURFACES ARE HOT

OFF

CAUTION

Failure To Comply Voids Warranty!

DO NOT

Turn On The Tank Heater Switch

Until Water Comes From Opened Faucet!

HAZARDOUS

VOLTAGE

DISCONNECT FROM

POWER SOURCE

BEFORE REMOVING!

WARNING

STOP

READ NOTICE

Contents

Main OPERATING & SERVICE MANUAL CAUTION: WARMERS AND SURFACES ARE HOT BUNN-O-MATIC CORPORATION POST OFFICE BOX 3227 SPRINGFIELD, ILLINOIS 62708-3227 PHONE: (217) 529-6601 FAX: (217) 529-6644 www.bunnomatic.com INTRODUCTION WARRANTY USER NOTICES USER NOTICES (cont.) ELECTRICAL REQUIREMENTS Initial Set-Up. Electrical Hook-Up INITIAL SET-UP Adjusting Brew Volumes ADJUSTING BREW VOLUMES INITIAL SET-UP (cont.) OPERATING CONTROLS COFFEE BREWING CLEANING TROUBLESHOOTING Page Page Page Service - Service Inital Set-Up Initial Set-Up Page SERVICE Troubleshooting Page Page Page 16 FIG. 4 BREW SELECTOR SWITCH TERMINALS Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page 35 SOLENOID VALVE (Inlet) Page Page Page Page 39 RIGHT FIG. 33 TIMER TERMINALS SINGLE BATCH MACHINE ONLY RIGHT Page 40 Timers (Early Models)(cont.) FIG. 34 TIMER TERMINALS RIGHT LEFT Page Page Page 120/208 VOLTS AC OR 120/240 VOLTS AC 3 WIRE SCHEMATIC WIRING DIAGRAM DUAL BREWER (W/TWO-GRINDER INTERFACE) SCHEMATIC WIRING DIAGRAM DUAL-A & -B BREWER (W/TWO-GRINDER INTERFACE) 200 OR 240 VOLTS AC 2 WIRE SCHEMATIC WIRING DIAGRAM DUAL BREWER ECA (W/TWO-GRINDER INTERFACE) 120/208 VOLTS AC OR 120/240 VOLTS AC 3 WIRE SCHEMATIC WIRING DIAGRAM DUAL-A & -B BREWER ECA (W/TWO-GRINDER INTERFACE) 200 OR 240 VOLTS AC 2 WIRE 120/208 VOLTS AC OR 120/240 VOLTS AC 3 WIRE SCHEMATIC WIRING DIAGRAM DUAL BREWER (W/ONE-GRINDER INTERFACE) SCHEMATIC WIRING DIAGRAM DUAL BREWER ECA (W/ONE-GRINDER INTERFACE) 120/208 VOLTS AC OR 120/240 VOLTS AC 3 WIRE SCHEMATIC WIRING DIAGRAM DUAL-A & -B BREWER (W/ONE-GRINDER INTERFACE) 200 OR 240 VOLTS AC 2 WIRE SCHEMATIC WIRING DIAGRAM DUAL-A & -B BREWER ECA (W/ONE-GRINDER INTERFACE) 200 OR 240 VOLTS AC 2 WIRE RT START SW LT START SW 6 SCHEMATIC WIRING DIAGRAM DUAL BREWER W/DIGITAL BREWER CONTROL 208 0R 240V.A.C. 120V.A.C. 120V.A.C. TRIAC SOL SOL