Instruction/ maintenance manual of the product LPG Bunn
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B UNN-O-MA TIC CORPORA TION POST OFFICE BOX 3227 SPRINGFIELD, ILLINOIS 62708-3227 PHONE: (217) 529-6601 FAX: (217) 529-6644 www .bunnomatic.com OPERA TING & SER VICE MANU AL.
2 CONTENTS User Notices ............................................................. 3 Electrical Requirements ............................................ 3 Operating Controls .................................................... 3 Cleaning .........
3.
4 CLEANING EXTERIOR SURFACES The use of a damp cloth rinsed in any mild, nonabrasive, liquid detergent is recommended for cleaning all surfaces on Bunn-O-Matic equipment. Care should be taken not to scratch the hopper or windows with any abrasive material.
5 C O A R S E - F I N E B U N N INITIAL SET-UP/ADJUSTMENTS The grind can be set from fine to very coarse. The grind may be adjusted for use in most commercial coffee brewers. The following procedures should be used to make adjustments. NOTE - A change in the burr adjustment will also change the amount dispensed.
6 Problem Grinder will not start. Remedy (A) Plug-in the grinder . (B) Check the voltage at the wall outlet with a voltmeter . It must be 120 volts ac for 120 volt models, 100 volts for 100 volt models, and 230 volts for 230 volt models. (A) Momentarily press the Off/On/ Start switch to the “ST ART”(lower) position.
7 TROUBLESHOOTING (cont.).
8 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. An extension cord, when used, must be shorter than 20 feet if 16-gage 3-conductor wire, or shorter than 10 feet if 18-gage 3-conductor wire.
9 SERVICE (cont.) Capacitor (Model LPG)(cont.) Location: The capacitor is located inside the front panel of the hopper housing next to the Off/On/Start switch. Test Procedure: 1. Disconnect grinder from the power source. 2. Visually inspect the capacitor for leakage.
10 P1038 Hopper Selector Switch (Model LPG-2E) P1029 Location: The Hopper Selector Switch is located in the lower left front of the hopper housing. T est Procedure: 1. Disconnect grinder from the power supply. 2. Remove all wires from the switch terminals.
11 P1022 Location: The motor is located inside the hopper assembly. Test Procedures: 1. Disconnect grinder from the power supply. 2. On Model LPG-2E, disconnect the black wire and the white wire to the motor from the main wiring harness, the red wire to the circuit breaker and the red wire to the Off/On/Start switch.
12 1. Retaining Ring W/Hopper Gasket 2. Filler Plate 3. Slide Plate, Solenoid Plunger and Spring 4. Spacer Plate 5. Setscrew, #10 -32 6 Mounting Ring, Solenoid and Solenoid Mounting Plate 7. Setscrew, #8-32 8. Burr Housing Divider 9. Motor and Burr Housing P1050 1 3 4 6 5 7 8 2 3 9 FIG.
13 22. Remove the two #8-32 flat head screws securing the motor cover (18) to the motor and housing assembly (17) and remove the cover. Set aside for reassembly. 23. Discard old motor and housing assembly. 24. Place new motor on it’s side and install motor cover (18) using two #8-32 flat head screws.
14 SERVICE (cont.) OFF/ON/START Switch Location: The Off/On/Start switch is located on the right front side of the hopper housing. Test Procedure: 1. Disconnect grinder from the power source. 2. Remove all wires from the switch terminals. 3. Check for continuity across the .
15 solenoid with a voltmeter. Connect the grinder to the power source and place the Off/On/Start switch in the “ON” center position. The indication must be 120 volts AC. 4. Disconnect the grinder from the power source. If voltage is present as described, proceed to #5.
16 SERVICE (cont.) Timer (Model LPG-2E) P1061 Location: The timer is located inside the hopper housing just behind the left solenoid. Test Procedure: 1.
17 8. Slip timer and timer mounting bracket under the two screws on the motor support plate and tighten screws. 9. Locate the left and right timer dials in their proper place on the rear panel and secure with nuts and internal tooth lockwashers. 10. Place timer knobs on timers.
18 WIRING SCHEMA TICS 27103.0000C 11/98 © 1996 BUNN-O-MATIC CORPORATION SCHEMATIC WIRING DIAGRAM LPG2E N L1 BLK RED WHI 120 VOLTS AC 2 WIRE SINGLE PHASE 60 HZ GRN 3 AMP 2 3 4 5 6 1 7 8 9 10 TIMER ASSY.
19 BLK WHI RED RED 10529.0000C 3/92 © 1990 BUNN-O-MATIC CORPORATION SCHEMATIC WIRING DIAGRAM LPG & LPG2 N L1 B L K P1 2 3 4 5 6 1 RED WHI/BLK BLK WHI/BLU WHI/BRN WHI GRN RED WHI/BLK BLK WHI/BLU W.
20 BLK WHI RED RED 10529.0002E 8/01 © 1990 BUNN-O-MATIC CORPORATION SCHEMATIC WIRING DIAGRAM LPG-A L2 L1 B L K P1 2 3 4 5 6 1 RED WHI/BLK BLK WHI/BLU WHI/BRN WHI GRN RED WHI/BLK BLK WHI/BLU WHI/BRN W.
21 BLK WHI RED RED 10529.0003E 10/98 © 1998 BUNN-O-MATIC CORPORATION SCHEMATIC WIRING DIAGRAM LPG W/Capacitor L1 P1 2 3 4 5 6 1 1 2 RED WHI/BLK BLK WHI/BLU WHI/BRN WHI GRN RED WHI/BLK BLK BLK WHI/BLU.
22 WIRING SCHEMA TICS BLK WHI RED RED 10529.0001D 10/98 © 1990 BUNN-O-MATIC CORPORATION SCHEMATIC WIRING DIAGRAM LPG-B N L1 B L K P1 2 3 4 5 6 1 RED WHI/BLK BLK WHI/BLU WHI/BRN WHI GRN RED WHI/BLK BL.
An important point after buying a device Bunn LPG (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Bunn LPG yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Bunn LPG - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Bunn LPG you will learn all the available features of the product, as well as information on its operation. The information that you get Bunn LPG will certainly help you make a decision on the purchase.
If you already are a holder of Bunn LPG, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Bunn LPG.
However, one of the most important roles played by the user manual is to help in solving problems with Bunn LPG. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Bunn LPG along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
