Bunn HC-3 - Manuals

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Manual

Manual Bunn HC-3

Summary

Page 2 - INTRODUCTION; WARRANTY; workmanship for two years from the date of installation.

2 INTRODUCTION This equipment dispenses hot beverages on demand from powered product. It has two or three hoppers. Thetwo and three hopper models may also dispense cold beverages from powdered product from their left dispensestation. It is for indoor use only on a sturdy counter or shelf. WARRANTY B...

Page 3 - USER NOTICES

3 00656.0000 00831.0000 11646.0000 12368.0002 26525.0000 27620.0000 USER NOTICES Carefully read and follow all notices on the equipment and in this manual. They were written for your protection.All notices are to be kept in good condition. Replace any unreadable or damaged labels. 27591 061500

Page 4 - ELECTRICAL REQUIREMENTS; CAUTION; PLUMBING REQUIREMENTS; COLD WATER

4 INITIAL SET-UP 1. Locate the drip tray assembly beneath the dispenser nested in the packing material. 2. Remove the drip tray and the drip tray cover and set them aside. 3. Remove the water strainer assembly from the drip tray and set it aside. 4. Remove the four legs from the drip tray, apply non...

Page 5 - DISPENSER USE; NOTE; CLEANING

5 PLUMBING HOOK-UP 1. Securely attach the short piece of tubing on the water strainer assembly to the inlet fitting on the bottom ofthe dispenser. 2. Flush the water line and securely attach it to the flare fitting on the water strainer assembly. 3. Turn-on the water supply. INITIAL fill & heat ...

Page 6 - DRAINING THE HOT WATER TANK; HOPPER DISPENSE RATE OF PRODUCT; WARNING – •

6 DRAINING THE HOT WATER TANK CAUTION - The dispenser must be disconnected from the power source throughout these steps. 1. Disconnect the dispenser from the power source. 2. Open front door and place tank heater switch in the “OFF” (upper) position. 3. Shut-off and disconnect the incoming water sup...

Page 12 - SERVICE; WARNING

12 SERVICE This section provides procedures for testing and replacing various major components used in thisdispenser should service become necessary. Refer toTroubleshooting for assistance in determining thecause of any problem. WARNING - Inspection, testing, and repair of electri- cal equipment sho...

Page 13 - Removal, Cleaning and Replacement

13 SERVICE AUGER DRIVE COMPONENTS (cont.) If voltage is present as described, proceed to #5.If voltage is not present as described, refer to the wir-ing diagrams and check the dispenser wiring harness. 5. With the wires removed from the motor to betested. Check for continuity across the two ter-mina...

Page 15 - BALLAST

15 SERVICE (cont.) BALLAST FIG. 4 BALLAST Location The front door lamp ballast is located on the front center of the base behind the front panel. Test Procedure1. Disconnect the dispenser from the power source. 2. Disconnect the two terminal plug of the door in-terconnect harness from the connector ...

Page 16 - CONTROL THERMOSTAT

16 SERVICE (cont.) CONTROL THERMOSTAT MECHANICAL ELECTRONIC (OPTIONAL) FIG. 6 CONTROL THERMOSTAT P1199.45 P1203.45 Location Mechanical Thermostat The mechanical thermostat is located on the upper right side of the rear panel inside the dispenser. Electronic Thermostat (Optional) The electronic therm...

Page 20 - FROTHER AND WHIPPER MOTOR

20 SERVICE (cont.) FROTHER AND WHIPPER MOTOR FIG. 11 FROTHER AND WHIPPER MOTOR P1203.45 Location: The frothers are located behind the dispenser door, mounted on the front of the front panel insidethe whipper chamber. The whipper motors are located on the back side of the front section of the front p...

Page 22 - HOPPER DELAY BOARD

22 SERVICE (cont.) HOPPER DELAY BOARD FIG. 13 HOPPER DELAY BOARD P1199.45 Location The hopper delay board is located on the left front side of the dispenser base just behind the frontpanel. Test Procedures:1. Disconnect the dispenser from the power source.2. Disconnect the white and black wires of t...

Page 24 - LAMP HOLDER

24 SERVICE (cont.) LAMP HOLDER FIG. 16 LAMP HOLDERS P1209.75 Location: The lamp holders are located on the front of the reflector behind the display panel. Test Procedure:1. Disconnect the dispenser from the power source. 2. Disconnect the plugs on the door wiring harnessfrom the connectors on the l...

Page 26 - LEVEL CONTROL BOARD AND LEVEL PROBE

26 SERVICE (cont.) LEVEL CONTROL BOARD AND LEVEL PROBE FIG. 17 LEVEL CONTROL BOARD AND PROBE P1203.45 Location: The level control board is located on the upper right rear of the front panel just in front of the tank. The Level probe is located on the right center of the tank lid. Test Procedure:1. D...

Page 27 - LIMIT THERMOSTAT

27 SERVICE (cont.) LEVEL CONTROL BOARD AND LEVEL PROBE (cont.) If voltage is present as described, reinstall the probe,the level control board and level probe are operatingproperly.If voltage is not present as described, check the pinkprobe wire for continuity. Removal and Replacement:1. Remove all ...

Page 28 - OVERFLOW PROTECTION SWITCH

28 SERVICE (cont.) OVERFLOW PROTECTION SWITCH FIG. 21 OVERFLOW PROTECTION SWITCH P1199.45 Location: The overflow protection switch is located in- side the copper overflow cup on the upper front ofthe tank. Test Procedures:1. Disconnect the dispenser from the power source.2. Remove the wire nuts conn...

Page 33 - TANK HEATER

33 SERVICE (cont.) SOLENOID VALVE (INLET) (cont.) If continuity is not present as described, replace thesolenoid valve. 6. Check the solenoid valve for coil action. Connectthe dispenser to the power source. Listen care-fully in the vicinity of the solenoid valve for a"clicking" sound as the ...

Page 34 - TANK HEATER SWITCH

34 P1199.35 SERVICE (cont.) TANK HEATER (cont.) 5. Check for continuity across the tank heater termi-nals. If continuity is present as described, reconnect thewires, the tank heater is operating properly.If continuity is not present as described, replace thetank heater. NOTE - If the tank heater rem...