Bunn DUAL SH DBC User manual

DUAL® SH DBC
WITH SMART FUNNEL®
INSTALLATION & OPERATING MANUAL
BUNN-O-MATIC CORPORATION
POST OFFICE BOX 3227
SPRINGFIELD, ILLINOIS 62708-3227
PHONE: [phone] FAX: [phone]
www.bunnomatic.com
29877.0002A 12/04 ©2004 Bunn-O-Matic Corporation
(Seattle's Best)

Page 2
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 [phone] 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.
BUNN, DUAL SH, SOFT HEAT, BrewWISE, and SMART FUNNEL are either trademarks or registered trademarks
of Bunn-O-Matic Corporation.
29877.2 121504
INTRODUCTION
The brewer can be programmed to adjust different functions of the brewing process, such as brew tempera-
ture, brew volumes, bypass percentages, pulse brew, etc. This allows the operator to program a certain "recipe"
for each coffee flavor to be brewed.

Page 3 29877.2 121504
TABLE OF CONTENTS
User Notices ...............................................................................................................................4
Electrical and Plumbing Requirements .......................................................................................5
Operating Controls......................................................................................................................6
Initial Setup.................................................................................................................................7
Coffee Brewing............................................................................................................................7
Cleaning......................................................................................................................................7
Glossary......................................................................................................................................8
PROGRAMMING ........................................................................................................................9
Programming Switches...............................................................................................................9
Programming the Brewer & Lockout Switch.............................................................................10
PROGRAM FUNCTIONS (LEVEL 1)
Brew Lockout.........................................................................................................................11
Recipe Programming Methods.............................................................................................11
Flow Diagram............................................................................................................................12
PROGRAM FUNCTIONS (LEVEL 2)
Units (Setting Units Of Measure)..........................................................................................16
Set New Recipe (using a Smart Funnel®and G9-2T DBC or MHG Grinder) ........................17
Set Brew Volumes............................................................................................................17
Set By-Pass Percentages .................................................................................................18
Set Pulse Brew Times ......................................................................................................18
Set Preinfusion Times......................................................................................................18
Set Drip Times .................................................................................................................19
Set New Recipe (using a Recipe Card) ................................................................................20
Set New Recipe (no Smart Funnel®, G9-2T DBC or MHG Grinder)......................................21
Review Recipes/Modify Recipes/Set up No Name Coffee ...................................................22
Set Brew Volumes............................................................................................................23
Set Bypass Percentages...................................................................................................24
Set Pulse Brew Times ......................................................................................................25
By Example ...............................................................................................................27
Enter Times...............................................................................................................28
Set Preinfusion Times......................................................................................................29
Set Drip Times .................................................................................................................30
Copy Settings ........................................................................................................................31
Enable Ads ............................................................................................................................32
Set Temp (Brewing Temperature) ..........................................................................................32
Set Ready (Ready Temperature)............................................................................................32
Refill (Adjust Sensitivity).......................................................................................................33
Spray Oz/M (Read sprayhead flow rate) ................................................................................33
Bypass Oz/M (Read bypass flow rate) ...................................................................................33
Calibrate Flow.......................................................................................................................34
Calibrate Sprayhead Flow.................................................................................................34
Calibrate Bypass Flow ......................................................................................................35
Brew Counters (View/Reset)..................................................................................................36
Funnel Detect........................................................................................................................36
Server Detect ........................................................................................................................37
Service Tools.........................................................................................................................37
Test Outputs (Components) .............................................................................................38
Test Switches...................................................................................................................38
Test Servers .....................................................................................................................39
Test Frequency ................................................................................................................40
Factory Defaults (Reset) .......................................................................................................40
Troubleshooting ........................................................................................................................41
Schematic (Wiring Diagram).....................................................................................................52

Page 4
00656.0000
00831.0000
USER NOTICES
The notices on this brewer should be kept in good condition. Replace unreadable or damaged labels.
10044.0000
03408.0005 03409.0005
00658.0000
WARNING!
Fill water tank before turning - on -
thermostat or connecting appliance
to power source.
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.
FAILURE TO COMPLY RISKS EQUIPMENT
DAMAGE, FIRE, OR SHOCK HAZARD
READ THE ENTIRE OPERATING MANUAL
BEFORE BUYING OR USING THIS PRODUCT
THIS APPLIANCE IS HEATED WHENEVER
CONNECTED TO A POWER SOURCE
00831.0000F 3/98©1998BUNN-O-MATIC CORPORATION
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ELECTRICAL HOOK-UP
CAUTION: Improper electrical installation will damage electronic components.
1. An electrician must provide electrical service as specified.
2. Using a voltmeter, check the voltage and color coding of each conductor at the electrical source.
3. Remove the front panel beneath the sprayheads.
4. Feed the cord through the strain relief and connect it to the terminal block.
5. Connect the brewer to the power source and verify the voltage at the terminal block before proceeding. Re-
place the front panel.
6. If plumbing is to be hooked up later be sure the brewer is disconnected from the power source. If plumbing
has been hooked up, the brewer is ready for Initial Set-Up.
PLUMBING REQUIREMENTS
This brewer must be connected to a cold water system with operating pressure between 20 and 90 psi (138
and 620 kPa) from a 1⁄2" or larger supply line. A shut-off valve should be installed in the line before the brewer.
Install a regulator in the line when pressure is greater than 90 psi (620 kPa) to reduce it to 50 psi (345 kPa).
The water inlet fitting is 1⁄4" flare.
NOTE: Bunn-O-Matic recommends 1⁄4" copper tubing for installations of less than 25 feet and 3⁄8" for more than 25
feet from the 1⁄2" water supply line. A tight coil of copper tubing in the water line will facilitate moving the brewer
to clean the counter top. Bunn-O-Matic does not recommend the use of a saddle valve to install the brewer. The
size and shape of the hole made in the supply line by this type of device may restrict water flow.
This equipment must be installed to comply with the Basic Plumbing Code of the
Building Officials and Code Administrators International, Inc. (BOCA)
and the Food Service Sanitation Manual of the Food and Drug Administration (FDA).
PLUMBING HOOK-UP
1. Flush the water supply line and securely attach it to the flare fitting or adapter located on bottom of brewer.
2. Turn on the water supply.
Requires 3-wire, grounded ser-
vice rated 120/208 or 120/240
volts ac, 40 amp, single phase,
60 Hz.
ELECTRICAL REQUIREMENTS
CAUTION: The brewer must be disconnected from the power source until specified in Initial Set-Up.
L2 RED
WHITE
NEUTRAL
L1 BLACK
120 V.A.C.
120 V.A.C.
208 OR 240 V A.C.
P1841
29877.2 121504

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aa
bb
cc
d
e
f
OPERATING CONTROLS
OPERATING CONTROLS
(a) BATCH SELECTOR PADS
Pressing the pad corresponding to the Small, Medium, or Large batch selects the amount of coffee to be
brewed. Pressing a different pad after a brew cycle has been initiated does not change the brew batch in prog-
ress. Light indicates the selected batch to brew.
(b) ON/OFF PAD
Pressing the ON/OFF pad alternately turns the brewing side on and off. Pressing this pad during the brew
cycle will interrupt the brew cycle, stopping the flow of water. Pressing this pad during the programming of the
brewer will exit the setup and return to the main screen.
(c) BREW PAD
Momentarily pressing and releasing this pad begins a brew cycle.
(d) PROGRAM PAD
Pressing and holding the upper right hidden switch allows entry to the programming menus. Pressing and
releasing the switch steps through each function screen during programming.
(e) FUNCTION SCREEN
This is the display which shows the various functions of the brewer and allows the programming to be ac-
complished.
(f) FUNCTION SCREEN PADS
These are the hidden pads which are used to program the brewer.
(g) FUNNEL SENSING COILS
These are used to "receive" information from the Smart Funnel handle (coffee name and batch size), and also
from RECIPE CARDS.
(h) SCROLL BACKWARDS
The upper left hidden switch can be used to scroll backwards through the function list.
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P3339.25
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INITIAL SETUP
CAUTION: The brewer must be disconnected from the power source throughout the initial setup, except when
specified in the instructions.
1. Insert an empty funnel into the funnel rails of one of the brew stations.
2. Place an empty server under the funnel.
3. Connect the brewer to the power source. Water will begin flowing into the tank and stop when the tank is
filled to its capacity. Display will show PLEASE WAIT...TANK FILLING until tank is filled with water.
4. Wait approximately twenty minutes for the water in the tank to heat to the proper temperature. Display will
show READY TO BREW...WATER TEMP: XXX˚ when tank is at operating temperature.
NOTE: Brew water temperature is factory set at 200° F (93.3° C). Areas of high altitude will require lowering this
temperature to prevent boiling. Refer to chart in "SET TEMP" section (Page 32) when readjusting the brew
temperature.
5. Place a small vessel beneath the faucet and open the faucet handle. Release it when you hear the tank refill-
ing.
6. Water volumes have been preset at the factory. Refer to adjustments for the Set Brew Volumes section of
this manual should the volume need to be increased or decreased.
7. The brewer is now ready for use in accordance with the coffee brewing instructions.
COFFEE BREWING
1. Select the desired batch size on the grinder. It is not necessary to select a size on the brewer.
2. Insert a BUNN filter into the funnel.
3. Pour the proper amount of fresh ground coffee into the filter and level the grounds by gently shaking.
4. Slide the funnel into the funnel rails. If the grounds are not obtained through a grinder compatible with a
Smart Funnel, a batch size must be chosen on the brewer.
5. Place an empty server under the funnel.
6 Momentarily press and release the pad. If the brewer has the funnel lock option and if it is activated,
once a brew cycle has been started the funnel is locked in place. There may be certain situations in which the
brew cycle will not begin when is pressed:
a) BREW TEMPERATURE TOO LOW - wait until heated or cancel BREW LOCKOUT option. (Page 10)
b) FUNNEL NOT IN PLACE (or using a standard brew funnel) - cancel FUNNEL DETECT option. (Page 36)
c) CHECK FUNNEL - remove funnel, empty previously brewed grounds and grind a new batch into the fun-
nel.
d) SERVER NOT IN PLACE - place Soft Heat Server, or cancel SERVER DETECT option. (Page 37)
7. If none of the above messages are displayed, the display will read NOW BREWING and the time remaining
in the brew cycle. Arrows will point to the side which is brewing. If both sides are brewing simultaneously,
the arrows will alternate from left to right on the display.
8. Following the BREW will be a countdown of drip time DRIPPING which shows the time remaining until the
funnel lock will release. Discard the grounds and filter only after visible dripping stops.
CLEANING
WARNING: Do not attempt to remove hot water faucet for any reason. Hot water faucet dispenses very hot
water.
1. The use of a damp cloth rinsed in any mild, nonabrasive, liquid detergent is recommended for cleaning all
surfaces on Bunn-O-Matic equipment.
2. Check and clean the sprayhead. The sprayhead holes must always remain open.
NOTE: In hard water areas, this may need to be done daily. It will help prevent liming problems in the brewer
and takes less than a minute.
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GLOSSARY
AD CARD: An assembly consisting of a computer chip and an instruction label. Used for loading advertising
messages into the brewer.
BREW LOCKOUT: The inability to initiate a brew if the water temperature is less than the ready temperature
programmed into the brewer.
BYPASS: The process of diverting a portion of the brew water to the outside of the paper filter so that it does
not pass through the coffee grounds. This process is sometimes used to optimize the flavor of the finished
brew.
CHIP: A computer chip containing either recipes for specific coffee flavors or advertising messages which are
read by the sensing coils on the brewer. One chip is embedded in each Smart Funnel handle to carry the
coffee flavor name and batch size ground from the grinder to the brewer.
CYCLE TIME: The total length of time to complete a brew cycle. Does not include Drip Time.
DRIP TIME: The length of time from when the water spray over the grounds ends, to the time that no water drips
from the funnel tip.
FACTORY DEFAULTS: The factory preset brew settings that were installed into the brewer's memory.
FIRST ON-TIME: During a pulse brew or preinfusion, this is the time set for the initial flow of water over the
grounds.
FUNNEL DETECT: Sets the inability to initiate a brew cycle if the funnel is not properly inserted into the funnel
rails.
FUNNEL SENSING COIL: A sensor on the front hood of the brewer, which reads what name and batch size of
coffee was ground into the funnel and allows for the brewer to automatically set itself to what is read from
the funnel handle.
INITIAL ON-TIME: During a pulse brew, this is the time set for the initial flow of water over the grounds.
MAIN SCREEN: The term used to describe the screen that is displayed when the brewer is not in use. This screen
is also displayed after exiting the programming mode.
LAST ON-TIME: During a pulse brew, this is the time set for the second on-time, and each alternating on-time
for the remainder of the brew cycle.
MAIN SCREEN: The term used to describe the screen that is displayed when the brewer is not in use. This screen
is also displayed after exiting the programming mode.
NO-NAME COFFEE: The term for the recipe used by the brewer when there is no coffee name stored in the funnel.
The brewer can contain separate No-Name recipes for the left and right brewing positions.
OFF-TIME: During a pulse brew or preinfusion, this is the time set for the length of time that the water is not
spraying over the grounds.
PREINFUSION: The process of beginning a brewing cycle with an initial spray of water onto the grounds followed
by a pause in the spray. After the programmed pause, the spray continues without interruption until the
end of the brewing cycle.
PULSE BREW: The process which allows the brew water to start, then stop, repeatedly, over the grounds in order
to derive the best flavor from the coffee. Pulse brew is also used in some instances to prevent a funnel
overflow.
RECIPE: Set of brewing parameters stored in the brewer. The parameters are unique for each coffee name and
include brew ounces, pulse brew, percent bypass, preinfusion and drip time.
RECIPE CARD: An assembly consisting of a computer chip and an instruction label. Used for loading a recipe
into the brewer and the companion BrewWISE Grinder.
SERVER DETECT: Sets the inability to initiate a brew cycle if the server is not properly placed on the stand below
the brew funnel.
SOFT HEAT: The type of server and brewer which are used as part of the Smart Funnel system. The server is
placed on the brewer, and is connected through the receptacles on the brewer. The server contains a tem-
perature-controlled heater which maintains the coffee at a constant temperature.
29877.2 121504

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PROGRAMMING
Using the menu-driven display on the front of the brewer, the operator has the ability to alter or modify various
brewing parameters such as brew temperatures, brew volumes, bypass percentages, etc. This allows for the
precise brewing of various flavors of coffee.
Programming of the brewer is achieved by entering a certain function. Then, by the use of hidden programming
switches, the operator can customize the brewing process to their specifications.
PROGRAMMING SWITCHES
To access the programming mode, and to scroll through the different function screens, hidden programming
switches are used. There are five of these switches that will be used for the setup of the brewer.
1
2
3 4 5
1. Upper right hidden switch (above right side of display)
This is used to access the programming mode and is also used to scroll forward through the function
list.
2. Upper left hidden switch (above left side of display)
This is used to scroll backwards through the function list.
3. "Digital" (lower left under the display)
This is used to select options that appear on the display during programming.
4. "Brewer" (center under the display)
This is used to select options that appear on the display during programming.
5. "Control" (lower right under the display)
This is used to select options that appear on the display during programming.
READY TO BREW
WATER TEMP: 200°
P3357
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READY TO BREW
WATER TEMP: 200°
Thisscreen willbe shown whenthe breweris ready
for use. The screen displays the water temperature
in the tank. When the water in the tank reaches the
correct set temperature, the display will change from
HEATING to READY TO BREW.
PROGRAMMING LOCKOUT SWITCH (mounted on
main control board)
This switch can be set to prevent access to the
programming levels of the brewer. Once all the cor-
rect brew settings are programmed, the operator can
set the switch to the "DISABLE" position to prohibit
anyone from changing the settings.
PROGRAMMING THE BREWER
The programming of the brewer is divided into two levels. There is one function in Level 1. All other functions
are accessed in Level 2.
The following function screens are in order of appearance. Each screen will have instructions on how to
access, and the procedures to program the various functions of the brewer.
IMPORTANT PROGRAMMING NOTES
- READ CAREFULLY -
To exit the programming mode at any time, press and release either of the pads located on the front
switch panel. The display will return to the MAIN SCREEN.
If none of the five programming switches are pressed within one minute during the setup of the brewer,
the programming of the function screen that is being set will be exited and the display will return to the MAIN
SCREEN.
Always remember to place a container and funnel under the sprayhead when operating the brewer during
the set-up of PULSE BREW - SET BY EXAMPLE, CALIBRATE FLOW and testing the brew and bypass valves in
SERVICE TOOLS/TEST OUTPUTS.
PROGRAM
ENABLE
DISABLE
PROGRAMMING
SWITCH
P2424 29877.2 121504
P3358
MAIN SCREEN BREW LOCKOUT
This function allows the operator to prevent or
allow brewing if the water temperature is less than
the set READY temperature.
To access this function screen press and hold the
® symbol. Release the ® when the display reads:
BREW LOCKOUT?
NO DONE YES
Press here
for NO
Press here
for DONE
Press here
for YES
PROGRAM FUNCTIONS - LEVEL 1
The YES or NO should be flashing. Select YES to
prevent brewing if the water temperature is below the
set READY temperature. Select NO to permit brewing
at any water temperature.
When finished, press and release DONE. This
will exit this function screen and return to the MAIN
SCREEN on the display.