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Bunn Single SH User manual

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Copyright 2025 Manuals.Online. All Rights Reserved.

BUNN-O-MATIC CORPORATION
POST OFFICE BOX 3227
SPRINGFIELD, ILLINOIS 62708-3227
PHONE: (217) 529-6601 F X: (217) 529-6644
www.bunnomatic.com
INSTALLATION & OPERATING MANUAL
SINGLE SH ®
WITH SM RT FUNNELTM
34025.0000A 10/01 ©2001 Bunn-O-Matic Corporation
BUNN
®
Page 2
W RR NTY
Bunn-O-Matic Corp. (“Bunn” warrants the equipment manufactured by it to be commercially free from defects
in material and workmanship existing at the time of manufacture and appearing within one year from the date of
installation. In addition:
1. Bunn warrants electronic circuit and/or control boards to be commercially free from defects in material and
workmanship for three years from the date of installation.
2. Bunn warrants the compressor on refrigeration equipment to be commercially free from defects in material
and workmanship for two years from the date of installation.
3. Bunn warrants that the grinding burrs on coffee grinding equipment will grind coffee to meet original factory
screen sieve analysis for three years from date of installation or for 30,000 pounds of coffee, whichever comes first.
This warranty does not apply to any equipment, component or part that was not manufactured by Bunn or that,
in Bunn’s judgement, has been affected by misuse, neglect, alteration, improper installation or operation, improper
maintenance or repair, damage or casualty.
THE FOREGOING W RR NTY IS EXCLUSIVE ND IS IN LIEU OF NY OTHER W RR NTY, WRITTEN OR
OR L, EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, NY IMPLIED W RR NTY OF EITHER
MERCH NT BILITY OR FITNESS FOR P RTICUL R 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.
The Buyer shall give 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. If requested by Bunn, the Buyer
shall ship the defective equipment prepaid to an authorized Bunn service location. If Bunn determines, in its sole
discretion, that the equipment does not conform to the warranty, Bunn shall repair the equipment with no charge
for parts during the warranty period and no charge for labor by a Bunn Authorized Service Representative during
the warranty period. If Bunn determines that repair is not feasible, Bunn shall, at its sole option, replace the
equipment or refund the purchase price for the equipment.
THE BUYER’S REMEDY G INST BUNN FOR THE BRE CH OF NY OBLIG TION RISING OUT OF THE S LE
OF THIS EQUIPMENT, WHETHER DERIVED FROM W RR NTY OR OTHERWISE, SH LL BE LIMITED, S
SPECIFIED HEREIN, TO REP IR OR, T BUNN’S SOLE OPTION, REPL CEMENT 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.
INTRODUCTION
This brewer incorporates a wireless interface system that allows the DBC Grinder to load certain information
into the "programming tag" located inside the handle of the funnel. This information includes the name of the coffee
ground and what batch size will be brewed (small, medium, or large . Once the correct name and amount of coffee
is ground, the funnel is loaded into the brewer. The information from the funnel handle is then transferred into the
brewer. The brewer then takes this information and dispenses the amount of water preset in the brewer for that
particular coffee name and batch size. The brewer can also be programmed to adjust different functions of the
brewing process, such as brew temperature, brew volumes, bypass percentages, pulse brew, etc. This allows the
operator to program a certain "recipe" for each coffee name to be brewed.
34025 100501
Page 3
T BLE OF CONTENTS
User Notices .............................................................................................................................. 4
Electrical and Plumbing Requirements ...................................................................................... 5
Operating Controls..................................................................................................................... 6
Initial Setup ............................................................................................................................... 7
Coffee Brewing .......................................................................................................................... 7
Cleaning..................................................................................................................................... 7
Glossary .................................................................................................................................... 8
PROGR MMING .......................................................................................... 9
Programming Switches ............................................................................................................. 9
Programming the Brewer ........................................................................................................ 10
PROGRAM FUNCTIONS (LEVEL 1 Brew Lockout ................................................. 10
PROGRAM FUNCTIONS (LEVEL 2 .......................................................................................... 11
Set New Recipe (using a Smart FunnelTM and G92T DBC Grinder) ........................... 12
Set Brew Volumes .......................................................................................................... 12
Set By-Pass Percentages ................................................................................................ 13
Set Pulse Brew Times ..................................................................................................... 13
Set Preinfusion Times..................................................................................................... 13
Set Drip Times ................................................................................................................ 14
Set New Recipe (using a Tag Card) ............................................................... 15
Set New Recipe (no Smart FunnelTM nor G92T DBC Grinder) ................................. 16
Review Recipes/Modify Recipes/Set up No Name Coffee ..................................... 17
Set Brew Volumes .......................................................................................................... 18
Set Bypass Percentages ................................................................................................. 19
Set Pulse Brew Times ..................................................................................................... 20
By Example .............................................................................................................. 22
Enter Times ............................................................................................................. 23
Set Preinfusion Times..................................................................................................... 24
Set Drip Times ................................................................................................................ 25
Enable ds ............................................................................................ 26
Set Temp (Brewing Temperature ........................................................................................ 26
Set Ready (Ready Temperature .......................................................................................... 26
Refill (Adjust Sensitivity ..................................................................................................... 27
Spray Oz/M (Read sprayhead flow rate ............................................................................... 27
Bypass Oz/M (Read bypass flow rate .................................................................................. 27
Calibrate Flow ........................................................................................ 28
Calibrate Sprayhead Flow ............................................................................................... 28
Calibrate Bypass Flow ..................................................................................................... 29
Brew Counters (View/Reset ................................................................................................ 30
Funnel Lockout ....................................................................................... 30
Server Lockout ....................................................................................... 31
Service Tools ......................................................................................... 31
Test Outputs (Components ........................................................................................... 32
Test Switches ................................................................................................................. 32
Test Servers....................................................................................................................33
Test Frequency ............................................................................................................... 33
Factory Defaults (Reset ...................................................................................................... 34
Troubleshooting ...................................................................................................................... 35
Schematic (Wiring Diagram ................................................................................................... 46
34025 100501
Page 4
00656.0000
00831.0000
00658.0000
20201.5600
USER NOTICES
The notices on this brewer should be kept in good condition. Replace unreadable or damaged labels.
10044.0000
Page 5
ELECTRIC L HOOK-UP
C UTION – 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. Replace
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 or female quick connect.
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 dministrators International, Inc. (BOC )
and the Food Service Sanitation Manual of the Food and Drug dministration (FD ).
PLUMBING HOOK-UP
1. Flush the water line and securely attach it to the flare fitting 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, 30 amp, single phase,
60 Hz.
ELECTRIC L REQUIREMENTS
C UTION - The brewer must be disconnected from the power source until specified in
Initial Set-Up.
L2 WHITE/VIOLET
WHITE
NEUTRAL
L1 BLACK
120 V.A.C.
120 V.A.C.
208 OR 240 V A.C.
P1841
34025 100501
Page 6
OPER TING CONTROLS
OPER TING CONTROLS
(a) B TCH SELECTOR P DS
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 progress.
Light indicates the selected batch to brew.
(b) ON/OFF P D
Pressing the ON/OFF pad alternately turns the brewer 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 P D
Momentarily pressing and releasing this pad begins a brew cycle.
(d) ® P D
Pressing and holding the ® pad allows entry to the programming menus. Pressing and releasing the pad 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
accomplished.
(f) FUNCTION SCREEN P DS
These are the hidden pads which are used to program the brewer.
(g) FUNNEL SENSING COIL
This is used to "receive" information from the Smart FunnelTM handle (coffee name and batch size , and also
from T G C RDS.
(h) SCROLL B CKW RDS
The upper left corner of the B in BUNN® can be used to scroll backwards through the function list.
a
b
c
d
e
f
h
g
P2437
34025 100501
Page 7
INITI L SETUP
C UTION – 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 the brew station.
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 PLE SE W IT...T NK 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
RE DY TO BREW...W TER TEMP: XXX˚ when tank is at operating temperature.
5. Place a small vessel beneath the faucet and open the faucet handle. Release it when you hear the tank refilling.
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. Grind the proper amount of fresh coffee into the Smart FunnelTM using the G92T DBC with Smart FunnelTM
operation and level the grounds by gently shaking.
4. Slide the funnel into the funnel rails. The brewer will read the size ground through the chip in the funnel handle
and will automatically select the correct size to brew. If the grounds are not obtained through a grinder
compatible with a Smart FunnelTM, 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 TEMPER TURE TOO LOW - wait until heated or cancel BREW LOCKOUT option. (Page 10
b FUNNEL NOT IN PL CE (or using a standard brew funnel - cancel FUNNEL LOCKOUT option. (Page 30
c CHECK FUNNEL - remove funnel, empty previously brewed grounds and grind a new batch into the funnel.
d SERVER NOT IN PL CE - place Soft Heat Server, or cancel SERVER LOCKOUT option. (Page 31
7. If none of the above messages are displayed, the display will read NOW BREWING along with the name of the
coffee being brewed.
8. When brewing is completed the optional funnel lock will release following a programmed length of time that
starts at the end of the brew cycle. Discard the grounds and filter.
CLE NING
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.
34025 100501
Page 8
GLOSS RY
BREW LOCKOUT: The inability to initiate a brew if the water temperature is less than the ready temperature
programmed into the brewer.
BYP SS: 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.
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.
F CTORY DEF ULTS: The factory preset brew settings that were installed into the brewer's memory.
FIRST ON-TIME: During a pulse brew, this is the time set for the initial flow of water over the grounds.
FUNNEL LOCKOUT: 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 flavor 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.
L ST 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.
M IN 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-N ME COFFEE: The term for the recipe used by the brewer when there is no coffee name stored in the funnel.
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.
SERVER LOCKOUT: The inability to initiate a brew cycle if the server is not properly placed on the stand below the
brew funnel.
SOFT HE T®: The type of server and brewer which are used as part of the Smart FunnelTM system. The server is
placed on the brewer, and is connected through the receptacles on the brewer. The server contains a
temperature-controlled heater which maintains the coffee at a constant temperature.
T G: A computer chip containing either recipes for specific coffee flavors or advertising messages which are
read by the sensing coils on the brewer. One tag is embedded in the Smart FunnelTM handle to carry the
coffee flavor name and batch size ground from the grinder to the brewer.
34025 100501
Page 9
PROGR MMING
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.
PROGR MMING 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. ® symbol (upper right of the BUNN logo
This is used to access the programming mode and is also used to scroll forward through the function list.
2. Upper left corner of the "B" in the BUNN logo
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.
1
2
3 4 5
P2450
34025 100501
Page 10
M IN SCREEN