Bunn | G9-2T DBC | Service manual | Bunn G9-2T DBC Service manual

G9-2T DBC
for use
with Smart Funnel®
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INSTALLATION & OPERATING GUIDE
BUNN-O-MATIC CORPORATION
POST OFFICE BOX 3227
SPRINGFIELD, ILLINOIS 62708-3227
PHONE: (217) 529-6601 FAX: (217) 529-6644
To ensure you have the latest revision of the Operating Manual, or to view the Illustrated Parts
Catalog, Programming Manual, or Service Manual, please visit the Bunn-O-Matic website, at
www.bunn.com. This is absolutely FREE, and the quickest way to obtain the latest catalog and
manual updates. For Technical Service, contact Bunn-O-Matic Corporation at 1-800-286-6070.
33736.0000J 06/09 ©2001 Bunn-O-Matic Corporation
BUNN-O-MATIC COMMERCIAL PRODUCT WARRANTY
Bunn-O-Matic Corp. (“BUNN”) warrants equipment manufactured by it as follows:
1) All equipment other than as specified below: 2 years parts and 1 year labor.
2) Electronic circuit and/or control boards: parts and labor for 3 years.
3) Compressors on refrigeration equipment: 5 years parts and 1 year labor.
4) Grinding burrs on coffee grinding equipment to grind coffee to meet original factory screen sieve analysis:
parts and labor for 3 years or 30,000 pounds of coffee, whichever comes first.
These warranty periods run from the date of installation BUNN warrants that the equipment manufactured by
it will be commercially free of defects in material and workmanship existing at the time of manufacture and
appearing within the applicable warranty period. This warranty does not apply to any equipment, component or
part that was not manufactured by BUNN or that, in BUNN’s judgment, has been affected by misuse, neglect,
alteration, improper installation or operation, improper maintenance or repair, damage or casualty. This warranty is
conditioned on the Buyer 1) giving BUNN prompt notice of any claim to be made under this warranty by telephone
at (217) 529-6601 or by writing to Post Office Box 3227, Springfield, Illinois 62708-3227; 2) if requested by
BUNN, shipping the defective equipment prepaid to an authorized BUNN service location; and 3) receiving prior
authorization from BUNN that the defective equipment is under warranty.
THE FOREGOING WARRANTY IS EXCLUSIVE AND IS IN LIEU OF ANY OTHER WARRANTY, WRITTEN OR
ORAL, EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, ANY IMPLIED WARRANTY OF EITHER
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. The agents, dealers or employees of BUNN
are not authorized to make modifications to this warranty or to make additional warranties that are binding on
BUNN. Accordingly, statements by such individuals, whether oral or written, do not constitute warranties and
should not be relied upon.
If BUNN determines in its sole discretion that the equipment does not conform to the warranty, BUNN, at its
exclusive option while the equipment is under warranty, shall either 1) provide at no charge replacement parts
and/or labor (during the applicable parts and labor warranty periods specified above) to repair the defective
components, provided that this repair is done by a BUNN Authorized Service Representative; or 2) shall replace
the equipment or refund the purchase price for the equipment.
THE BUYER’S REMEDY AGAINST BUNN FOR THE BREACH OF ANY OBLIGATION ARISING OUT OF THE SALE OF
THIS EQUIPMENT, WHETHER DERIVED FROM WARRANTY OR OTHERWISE, SHALL BE LIMITED, AT BUNN’S
SOLE OPTION AS SPECIFIED HEREIN, TO REPAIR, REPLACEMENT OR REFUND.
In no event shall BUNN be liable for any other damage or loss, including, but not limited to, lost profits, lost sales,
loss of use of equipment, claims of Buyer’s customers, cost of capital, cost of down time, cost of substitute
equipment, facilities or services, or any other special, incidental or consequential damages.
BrewWISE, BrewLOGIC, BrewMETER, BrewWIZARD, Bunn Gourmet, BUNN Gourmet Ice, BUNN Pour-O-Matic, BUNN,
Bunn-OMatic, Bunn-O-Matic, BUNNlink, BUNNserve, BUNNSERVE, BUNN Espress, Cool Froth, DBC, Dr. Brew, Dual, EasyClear, EasyGard, Easy Pour, FlavorGard, Gourmet Ice, Gourmet Juice, High Intensity, IMIX, Infusion Series, Intellisteam,
Quality Beverage Equipment Worldwide, The Mark of Quality in Beverage Equipment Worldwide, My Café, PowerLogic,
Safety-Fresh, Scale-Pro, Silver Series, Single, Smart Funnel, Smart Hopper, SmartWAVE, Soft Heat, SplashGard, System
III, ThermoFresh, 392, AutoPOD, AXIOM, Beverage Profit Calculator, Beverage Bar Creator, BUNNsource, Coffee At Its
Best, Digital Brewer Control, Nothing Brews Like a BUNN, Pouring Profits, Pulse Wave, Signature Series, Smart Heat,
Tea At Its Best, The Horizontal Red Line, Titan, Ultra, are either trademarks or registered trademarks of Bunn-O-Matic
Corporation.
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33736 012609
CONTENTS
User Notices...................................................................................................................................................... 3
Electrical Requirements..................................................................................................................................... 4
CE Requirements............................................................................................................................................... 4
Operating Controls............................................................................................................................................ 5
Initial Set-Up..................................................................................................................................................... 5
Cleaning............................................................................................................................................................ 6
Coffee Grinding................................................................................................................................................. 6
Adjustments...................................................................................................................................................... 6
Communicating with a Brewer........................................................................................................................... 7
Timer Adjustment (Control Board).................................................................................................................... 9
INTRODUCTION
This equipment will store up-to six pounds of whole bean coffee in each of two hoppers and grind it to a preset
grind and amount into an awaiting funnel and filter from most commercial drip coffee brewers. The equipment
is only for indoor use on a sturdy counter or shelf. Adequate space must be available above the grinder to raise
the lids when adding beans. Use only with whole bean coffee.
The grind is preset at the factory to drip specifications as set forth by the United States Department of Commerce
and adopted by the Coffee Brewing Center of the Pan American Coffee Bureau. Adjustments may be made to
alter both the amount and grind from the factory setting.
USER NOTICES
Carefully read and follow all notices on the grinder and in this manual. They were written for your protection.
All notices on the grinder are to be kept in good condition. Replace any unreadable or damaged labels.
WARNING
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.
PERSONAL INJURY
HAZARD.
KEEP FINGERS AND
FOREIGN OBJECTS
OUT OF HOPPER
OR CHUTE OPENING.
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.
05876.0000
FAILURE TO COMPLY RISKS EQUIPMENT
DAMAGE, FIRE, OR SHOCK HAZARD
READ THE ENTIRE OPERATING MANUAL
INCLUDING THE LIMIT OF WARRANTY AND
LIABILITY BEFORE BUYING OR USING THIS PRODUCT
20545-0000D 01/04 © 1990 Bunn-O-Matic Corporation
20545.0000
00824.0000
37881.0000
3
33736 062309
ELECTRICAL REQUIREMENTS
This grinder has an attached cordset and requires:
2-wire, grounded service rated 120 volts ac, 9 amp, single phase, 60 Hz for 120 volt models,
2-wire, grounded service rated 230 volts ac, 4 amp, single phase, 50 Hz for 230 volt models,
2-wire, grounded service rated 100 volts ac, 9 amp, single phase, 50 Hz for 100 volt models.
NOTE: If the power cord is damaged, it must be replaced by the manufacturer or its service agent or a similarly
qualified person in order to avoid a hazard.
CE REQUIREMENTS
• This appliance must be installed in locations where it can be overseen by trained personnel.
• For proper operation, this appliance must be installed where the temperature is between 5°C to 35°C.
• Appliance shall not be tilted more than 10° for safe operation.
• An electrician must provide electrical service as specified in conformance with all local and national codes.
• This appliance must not be cleaned by water jet.
• This appliance is not intended for use by persons (including children) with reduced physical, sensory or mental
capabilities, or lack of experience and knowledge, unless they have been given instructions concerning use of
this appliance by a person responsible for its safety.
• Children should be supervised to ensure they do not play with the appliance.
• If the power cord is ever damaged, it must be replaced by the manufacturer or authorized service personnel with
a special cord available from the manufacturer or its authorized service personnel in order to avoid a hazard.
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33736 062309
OPERATING CONTROLS
c
d
d
a
b
e
Grind Pad (a)
Pressing the GRIND button initiates a timed grind cycle.
Stop Pad (b)
Pressing the STOP button ends the operation of the grinder.
® PAD (c)
Pressing the ® pad allows programming access (see page 6).
Hopper/Batch Selector Pads (d)
These pads are located on the funnel depictions on each side of the grinder with a total of 6 pads. Selecting
one of these pads will select the amount of grind and side from which to grind.
Example: Selecting the lower pad on the left side will grind enough beans from the left side of the grinder
to brew the amount programmed into grinder.
Power ON/OFF Pad (e) (100V Models)
Pressing the ON/OFF pad alternately turns the grinder on and off.
Control Board
The control board determines the amount of beans that will leave the hopper in a grind cycle. The timer portion can be adjusted to dispense a different amount from each hopper and each batch size. The scale is from 0.4
to 99.9 seconds. Refer to the Adjustments section for timer setting chart (page 8).
INITIAL SET-UP
1. Open the top lid. Clear all foreign objects and shipping material from the hopper compartment and the entrance to the grind chamber.
2. Plug in the grinder.
3. Fill the hopper compartments with whole bean coffee. (Capacity 6 pounds each). The grinder is now ready
for use.
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33736 030205
CLEANING
WARNING - Unplug the grinder before the removal of any panel or grind chamber-housing parts.
1. Clean all exterior surfaces using a damp cloth rinsed in any mild, nonabrasive, liquid detergent. Care should
be taken not to scratch the grinder with any abrasive material.
2. Empty all beans from hopper(s). Plug in the grinder; place an empty funnel with filter into the funnel rails.
Press and release the “GRIND” button. Run a few cycles until all coffee in the grind chamber is dispensed
and disconnect the grinder from the power source.
3. Remove the upper front inspection panel.
4. Remove the two screws holding the front cover to the burr housing. Carefully remove the burr housing front
cover. Clean inside surface with a dry stiff non-metallic bristle brush and wipe with a dry clean cloth.
5. Carefully remove the rotor cup, shear plate burr rotor and motor shaft extension from the grinder. Clean all
parts with a dry stiff non-metallic bristle brush and wipe with a dry clean cloth.
6. Clean the grind chamber with a dry stiff non-metallic bristle brush and wipe with a dry clean cloth.
7. Reinstall the motor shaft extension, burr rotor, shear plate, rotor cup and front cover to the burr housing.
8. Reinstall the upper front inspection panel,
9. Refer to the “Adjustment” section of the Operating and Service manual for burr adjustments.
COFFEE GRINDING
1.
2.
3.
4.
5.
Visually inspect the selected hopper for an ample supply of whole bean coffee.
Place a paper filter into the brew funnel. The filter must not be folded-over or tilted to one side.
Insert the funnel into the funnel rails and push until it stops.
Choose the batch size and side of grinder to use.
Press the GRIND button. The grinding action will stop automatically after the preset amount of ground coffee
is dispensed into the funnel.
ADJUSTMENTS
The grind can be set from very fine to very coarse. The amount may be adjusted for use in most commercial
coffee brewers. The following procedures should be used to make adjustments. A change in the burr adjustment
will also change the amount dispensed. Any adjustment of the burrs should be followed by an adjustment of the
timer.
Burr Adjustment
1. Unplug the grinder and empty all beans from the hoppers.
2. Plug in the grinder, press and release the GRIND button (with either hopper selected). Run a few grind cycles
until all of the coffee in the grind chamber is used.
2 1 0
3
3. Remove the upper front inspection panel.
15
4
14 Adjusting
4. Loosen the locknut by one turn.
screw
5
13
5. Press the GRIND button and slowly turn the adjusting screw in a clockwise diHash
6
12
Marks
rection until a metallic whine is heard due to the rubbing of the grinding burrs.
7
1
8 9 10 1
(It may be necessary to start more than one grind cycle to obtain this sound.)
6. Turn plastic grind indicator until screw slot lines up with “O” on the indicator.
P2820
7. The following settings approximately correspond to the CBC recognized grinds.
All are referenced from the arrow position noted in #6.
FINE GRIND: Rotate the adjusting screw 7 hash marks in a counterclockwise direction.
DRIP GRIND: Rotate the adjusting screw 8 hash marks in a counterclockwise direction.
REGULAR (COARSE) GRIND: Rotate the adjusting screw 12 hash marks in a counterclockwise direction.
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33736 113007
COMMUNICATING WITH COFFEE BREWER
When the grinder is used with its companion brewer, the name of the coffee and the size of the batch ground
is communicated to the brewer through the chip in the funnel handle as it is placed into the brewer. Therefore,
it is necessary to “tell” the grinder the names of the coffees that have been loaded into the hoppers. The names
are chosen from the Coffee Chart shown below. Contact the factory if custom names that are not on the chart
are required.
SELECTING COFFEE NAMES
Entering a coffee name from the chart below:
1. Simultaneously press and hold the STOP button and any one of the three batch buttons on the side to be
programmed. After 3 seconds all three indicators on the side selected will begin flashing. The display will
show a number from the coffee chart below. This number represents the name of the coffee that is to be
loaded into the hopper.
2. Press and release the GRIND button to increase the number or press and release the STOP button to decrease
it.
3. When the correct number for the coffee being used is displayed, press any of the batch buttons on the other
side. All three indicators on that side will begin flashing.
4. Repeat step 2 to enter the name for the coffee being used on this side.
5. To exit the setup mode, press and release the ® button anytime during this procedure. The ® button is a
hidden programming pad located at the upper right corner of the BUNN® logo.
Entering a coffee name using a RECIPE CARD.
1. Press the STOP button and place the chip portion of the card under the sensor coil on the front of the
grinder.
2. After a short pause, the display will show 3 “dashes”.
3. Remove the card and press any batch switch on the side to be programmed.
4. The display should show the number of the coffee name loaded into the grinder.
5. The grinder display will then return to the normal operating mode.
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33736 030205
SELECTING COFFEE NAMES (Continued)
NOTE: If a number is chosen from the chart below, and entered into the grinder, check to be sure the number
entered represents the name of the coffee on the chart.
1. Grind into the funnel then insert the funnel into the brewer funnel rails.
2. The display will read the coffee name that was ground into the funnel.
3. If this name is different from the name on the chart, the grinder’s memory needs to be reset.
Resetting the grinder memory (to match the chart below)
1. Unplug grinder from the outlet.
2. Press in and hold both the STOP and the GRIND buttons and plug cordset into the outlet. After a short pause,
the display will show a series of 3 dashes followed by a series of 9 dashes.
3. When the 9 dashes appear, release the STOP and GRIND buttons, then press and release the STOP button.
4. The display will count down then return to the normal operating mode. The grinder should now be set to
match the coffee names with the numbers on the chart below.
COFFEE CHART
NUMBER
1
2
3
4
5
6
7
8
9
10
11
12
13
14
NAME
Regular
Decaf
Colombian
Colombia Supremo
Costa Rican
Ethiopian
Kona
Kenya AA
Sumatran
French Roast
Italian Roast
Mocha Java
House Blend
Breakfast Blend
NUMBER
15
16
17
18
19
20
21
22
23
24
25
26
27
28
8
NAME
Jamaica Blue Mtn
Guatemalan
Light Roast
Dark Roast
Espresso
Amaretto
Hazelnut
French Vanilla
Irish Creme
Vanilla Nut
Caramel
Raspberry
Almond
Dark Mtn Roast
33736 030205
TIMER ADJUSTMENT (CONTROL BOARD)
Three different batch settings are selectable for each hopper. Each batch is independently adjustable by setting the length of time a slide gate opens to allow beans to drop into the grinding chamber. A second time setting
for each batch determines how long the grind motor continues to run after the slide gate closes. This time is set
long enough to insure that all the beans dropped into the grind chamber are ground and dispensed.
1. Determine the grind setting. (The factory setting is drip, to determine other settings, refer to the previous
section.)
2. Use the table below to find approximate timer setting for the grind and amount of coffee desired.
3. To enter the setup mode and make an adjustment, press and hold the hidden programming pad under the
®. One of the batch indicators will begin to flash off and on. At this point, release the ® button.
4. Push the hopper/batch selector button for the batch to be adjusted. Note that the digital display shows the
current slide gate time setting (in seconds).
5. To increase the time, press the GRIND button. To decrease, press the STOP button.
6. To change the chamber clean-out time, press the same batch button again and note that the indicator light
begins to blink more rapidly and the display shows the current clean-out time.
7. To increase the time, press the GRIND button. To decrease it, press the STOP button.
8. After the cleanout time has been entered, press another batch pad and repeat steps 4 to 7. Otherwise, to exit
the programming mode, press and release the ® pad and the grinder returns to the normal operating mode,
using the new settings.
NOTE: While in the setup mode, if no buttons are pushed for 60 seconds, the grinder will return to normal operations, retaining any settings made while in the setup mode.
APPROXIMATE TIMER SETTINGS IN SECONDS
Weight
(ounces)
1.5
1.75
2.0
2.25
2.5
2.75
3.0
3.25
4.0
6.0
8.0
10.0
12.0
14.0
16.0
Fine
(7*)
Drip
(8*)
0.5
0.7
1.0
1.4
1.9
2.4
2.9
3.3
4.8
8.6
12.0
15.7
19.6
23.5
27.0
0.5
0.6
0.8
1.4
1.8
2.2
2.7
3.1
4.4
7.9
11.5
15.1
18.5
22.0
25.3
Regular
(12*)
0.5
0.6
0.8
1.2
1.6
2.0
2.5
2.9
4.0
7.5
10.9
14.1
17.5
20.9
24.3
*Hash mark settings. Refer to Burr Adjustment section.
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33736 030205
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