Ultra
®
NX
Frozen Beverage Dispensers
Bunn-O-Matic Corporation
Post Office Box 3227, Springfield, Illinois 62708-3227
Phone (217) 529-6601 | Fax (217) 529-6644
PROGRAMMING MANUAL
For Technical Service, contact Bunn-O-Matic Corporation at 1-800-286-6070.
58040.0000 A 2/22 © 2022 Bunn-O-Matic Corporation
www.bunn.com
2
Bunn-O-Matic Corp. (“BUNN”) warrants equipment manufactured by it as follows:
1) Airpots, thermal carafes, decanters, GPR servers, iced tea/coffee dispensers, MCR/MCP/MCA single cup
brewers, thermal servers and ThermoFresh
®
servers (mechanical and digital) 1 year parts and 1 year labor.
2) All other equipment - 2 years parts and 1 year labor plus added warranties as specified below:
a) Electronic circuit and/or control boards - parts and labor for 3 years.
b) Compressors on refrigeration equipment - 5 years parts and 1 year labor.
c)
Grinding burrs on coffee grinding equipment for 4 years or 40,000 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, non periodic cleaning and descaling, equipment
failures related to poor water quality, damage or casualty. In addition, the warranty does not apply to replacement
of items subject to normal use including but not limited to operator replaceable parts such as seals and gaskets.
This warranty is conditioned on the Buyer 1) giving BUNN prompt notice of any claim to be made under this war-
ranty 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 exclu-
sive 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.
392, A Partner You Can Count On, Air Infusion, AutoPOD, AXIOM, BrewLOGIC, BrewMETER, Brew Better Not
Bitter, BrewWISE, BrewWIZARD, BUNN Espress, BUNN Family Gourmet, BUNN Gourmet, BUNN Pour-O-Matic,
BUNN, BUNN with the stylized red line, BUNNlink, Bunn-OMatic, Bunn-O-Matic, BUNNserve, BUNNSERVE
with the stylized wrench design, Cool Froth, DBC, Dr. Brew stylized Dr. design, Dual, Easy Pour, EasyClear,
EasyGard, FlavorGard, Gourmet Ice, Gourmet Juice, High Intensity, iMIX, Infusion Series, Intellisteam, My
Café, Phase Brew, PowerLogic, Quality Beverage Equipment Worldwide, Respect Earth, Respect Earth with the
stylized leaf and coffee cherry design, Safety-Fresh, savemycoffee.com, Scale-Pro, Silver Series, Single, Smart
Funnel, Smart Hopper, SmartWAVE, Soft Heat, SplashGard, The Mark of Quality in Beverage Equipment
Worldwide, ThermoFresh, Titan, trifecta, TRIFECTA (sylized logo), Velocity Brew, Air Brew, Beverage Bar
Creator, Beverage Profit Calculator, Brew better, not bitter., Build-A-Drink, BUNNSource, Coffee At Its Best,
Cyclonic Heating System, Daypart, Digital Brewer Control, Element, Milk Texturing Fusion, Nothing Brews Like a
BUNN, Picture Prompted Cleaning, Pouring Profits, Signature Series, Sure Tamp, Tea At Its Best, The Horizontal
Red Line, Ultra are either trademarks or registered trademarks of Bunn-O-Matic Corporation. The commercial
trifecta
®
brewer housing configuration is a trademark of Bunn-O-Matic Corporation.
BUNN-O-MATIC COMMERCIAL PRODUCT WARRANTY
3
CONTENTS
Operating Controls ...........................................................................................4
Software Main Menus ......................................................................................6
Daily Operations ..............................................................................................7
Cleaning Guide ..........................................................................................7
Set Thickness .............................................................................................8
Test Augers ................................................................................................8
Set Date/Time ............................................................................................8
Password .........................................................................................................9
Settings ............................................................................................................9
Defrost Mode............................................................................................10
Set Night/Day Time ..................................................................................11
Defrost Begin ...........................................................................................11
Low Level Detect ...................................................................................... 11
Low Level to Chill .....................................................................................12
Refill Threshold ........................................................................................12
Auto Refill ....................................................................................................... 13
Delayed Refill ...........................................................................................14
Pressure ................................................................................................... 14
Test Refill .................................................................................................14
Advanced Settings .........................................................................................15
Set Language ........................................................................................... 16
Days to Clean ........................................................................................... 16
Thick Adjust ..............................................................................................17
Switches ................................................................................................... 17
Ad Message .............................................................................................17
Set Password ...........................................................................................18
Service Settings .............................................................................................19
Preventive Maintenance ...........................................................................20
Service Phone Number ............................................................................ 21
Enter Asset Number ................................................................................. 21
Restore Defaults ......................................................................................21
Software Version ......................................................................................22
USB Functions .........................................................................................22
Event Log .................................................................................................22
Service Tools .................................................................................................. 23
Install Date .....................................................................................................24
Temp and Torque ...........................................................................................25
Update Software ............................................................................................26
4
There are five of these switches that will be used for the operation of the dispenser.
1. Switch - Upper left corner of the control pad:
This switch is the ON/OFF toggle switch which powers up the dispenser and the LCD display.
When ON the Date and Time toggle back and forth continously except during programming.
2. Bottom left corner:
This is used to turn the left side auger motor to AUGER ON, AUGER OFF or AUGER REFILL ON.
(Refill only applicable when installed)
3. Bottom left corner:
This is used to turn the left side ice control to OFF, ICE or CHILL.
4. Bottom right corner:
This is used to turn the right side auger motor AUGER ON, AUGER OFF or AUGER REFILL ON.
(Refill only applicable when installed)
5. Bottom right corner:
This is used to turn the right side ice control to OFF, ICE or CHILL.
6. Hidden buttons used for Programming.
I
O
1
2 3 4 56
OPERATING CONTROLS
5
Using the menu-driven display on the front of the dispenser, the operator has the ability to alter or modify
various parameters such as beverage consistency and set day/night “ON/OFF” times. The operator is also
prompted to check a variety of periodic service functions or even a step-by-step cleaning routine. There is
also the opportunity to return all changes back to factory default settings.
Access to most controls can be password protected to allow only qualified personnel to make changes.
Programming Switches
To access the programming mode, and to scroll through the different function screens, hidden programming
switches are used. There are three of these switches that will be used for the setup of the dispenser.
1. I/O SWITCH (upper left corner of the control pad)
This switch is the ON/OFF toggle switch which powers up the dispenser and the LCD display. This
switch is also used as back up switch in menu mode.
2. “LEFT DOT” left under display)
Pressing will advance to the next function. When prompted by a selection from the menu to answer yes
or no, the “Left dot” switch is used to answer “NO” or (-) minus.
3. “CENTER DOT” (center under display)
Press and hold this switch 5 seconds to access the Menu Function Index. This switch is also used as
“NEXT” to scroll through the functions.
4. “RIGHT DOT” (right under display)
Pressing will advance to the next function. When prompted by a selection from the menu to answer yes
or no, the “Right dot” switch is used to answer “YES” or (+) plus.
PROGRAMMING
I
O
1
2
3
4
6
Install date screen is the last main soft-
ware menu and will advance automati-
cally after 4 seconds.
PROGRAMMING
SERVICE SETTINGS
NO YES
SERVICE TOOLS
NO YES
INSTALL DATE
NO YES
I
O
10:45:30 AM
off off
I
O
JAN. 25, 2019
off off
I
O
ULTR027930
off off
I
O
AN000001
off off
HOME SCREEN
During normal operations, TIME, DATE, and SERIAL NUMBER toggle back and forth continuously.
SOFTWARE MAIN MENUS
The following function screens are in the order they appear when programming mode is accessed (press
and hold the center hidden switch for 5 seconds). Use the center hidden button to navigate forward, left hid-
den button to navigate backward and the right hidden button to enter the menu.
see page 7
DAILY OPERATIONS
NO YES
PASSWORD 0
NO YES
SETTINGS
NO YES
AUTO REFILL?
NO YES
see page 9
see page 9
see page 13
ADVANCED SETTING
NO YES
see page 15
see page 19
see page 23
10:45:20 AM
off off
press & hold 5 seconds
7
PROGRAMMING
DAILY OPERATIONS
The following software screens are contained within the Daily Operations menu.
Press the right hidden switch to enter the Cleaning Guide. See below
and the next page for more information about this menu.
CLEANING GUIDE ?
NO YES
SET THICKNESS ?
NO YES
TEST AUGERS ?
NO YES
SET DATE TIME ?
NO YES
DAILY OPERATIONS
NO YES
END
Press the right hidden switch to enter the Set Thickness. See below and
the next page for more information about this menu.
CLEANING GUIDE
Select YES to go through steps to clean machine. See the Installation and Operating Guide for steps with images.
I
O
CLEANING GUIDE ?
NO NEXT YES
I
O
DRAIN HOPPERS
NO NEXT YES
I
O
REMOVE HOPPER
LIDS & PROBES
I
O
WASH & SANITIZE
ALL PARTS
I
O
WASH FREEZING
BARRELS
I
O
REMOVE HOPPERS
AUGERS & SEALS
Press to enter.
Hold for 10 seconds to view the serial number.
Press the right hidden switch to enter Test Augers. See page 8 for more
information about this menu.
Press the right hidden switch to enter Set Date Time. See page 8 for
more information about this menu.
8
DAILY OPERATIONS (continued)
SET DATE AND TIME
Selecting YES (ICE) allows the operator to set the DATE (YY MM DD) and TIME (HR MIN SEC) for display
on the HOME SCREEN.
I
O
SET DATE TIME ?
NO NEXT YES
I
O
AUG. 27 2021
(-) NEXT (+)
I
O
10 : 45 : 00 AM
(-) NEXT (+)
SET THICKNESS
This function adjusts the ice consistency, or torque of each auger when answered YES (ICE). Two screens
will appear for left and right. The operator can scroll through a range of a minimum of 1 (ULTRA) to a maximum
of 16 (ICE). Factory default is 7.
PROGRAMMING
Exits program mode menu.
NOTE: THERE WILL BE A 5 SECOND
COUNTDOWN BEFORE AUTO-
EXITING
I
O
INSTALL AUGERS
HOPPERS & SEALS
I
O
INSTALL HOPPER
PROBES & LIDS
I
O
WASH DRIP TRAY
I
O
FINISH
NEXT
I
O
REFILL WITH
PRODUCT
I
O
SET THICKNESS ?
NO NEXT YES
I
O
LEFT 12
I
O
LEFT 13
TEST AUGERS
This function tests the operation of forward and reverse for each auger motor. Left auger appears first. Press
the right hidden switch to toggle between OFF, FORWARD and REVERSE. Press center hidden switch to
repeat the operation for the right auger motor. A one minute time out will return to the Home Screen.
I
O
TEST AUGERS ?
NO NEXT YES
I
O
LEFT AUGER TEST
NO NEXT FORWARD
I
O
RIGHT AUGER TEST
NO NEXT OFF
CLEANING GUIDE
(-) minus
(+) plus
(-) minus
(+) plus
toggle
toggle
9
PASSWORD
From this screen, the operator must know the password before moving on to the remaining functions. The
range is from 0 - 9999 with the factory default being 0000.
SETTINGS
The following software screens are contained within the SETTINGS menu.
PROGRAMMING
I
O
PASSWORD 0
(-) NEXT (+)
(-) minus
(+) plus
Press when
password is
entered
I
O
SETTINGS
NO YES
Press the left or right hidden switch to select options for Defrost
Mode. See page 10 for more information about this menu.
DEFROST MODE
( - ) NIGHT ( + )
SET NIGHT TIME
( - ) 11:30 PM ( + )
DEFROST BEGIN
( - ) 8:30 AM ( + )
SET DAY TIME
( - ) 5:30 AM ( + )
NEXT PAGE
Press the left or right hidden switch to adjust Set Night Time. See page
11 for more information about this menu. This menu is only available
when Defrost Mode is set to “NIGHT”.
Press the left or right hidden switch to adjust Defrost Begin. See page
11 for more information about this menu.
Press the left or right hidden switch to adjust Set Day Time. See
page 11 for more information about this menu. This menu is only
available when Defrost Mode is set to “NIGHT”.
SETTINGS
NO YES
10
Press the left or right hidden switch to adjust Low Level to Chill. See
page 12 for more information about this menu.
LowLevelTo Chill
( - ) 90 min ( + )
250 L REFILL 155
( - ) THRESHOLD ( + )
250 R REFILL 155
( - ) THRESHOLD ( + )
END
Press the left or right hidden switch to adjust the left hopper refill
threshold. See page 12 for more information about this menu.
Press the left or right hidden switch to adjust the right hopper refill
threshold. See page 12 for more information about this menu.
SETTINGS (continued)
PROGRAMMING
LOW LEVEL DETECT
( - ) OFF ( + )
Press the left or right hidden switch to set Low Level Detect. See page
11 for more information about this menu.
I
O
DEFROST MODE
( - ) NIGHT ( + )
I
O
DEFROST MODE
( - ) ALTERNATE ( + )
I
O
DEFROST MODE
( - ) OFF ( + )
DEFROST MODE
This feature allows the machine to defrost the product. The use can toggle between OFF, NIGHT, and AL-
TERNATE.
Navigate to Low Level
Detect menu
Navigate to Set Night/Day
Time menu
Navigate to Defrost
Begin menu
11
The bottom corners displaying “ICE” will change to “CHILL” during the night mode. During night mode, the
product will be kept chilled to below 35°F. “ICE” reading will return after night mode elapses. With “OFF” repre-
senting 12:00 AM, the operator can scroll to the times desired for the night time mode to begin and end.
SET NIGHT TIME / SET DAY TIME
PROGRAMMING
SETTINGS (continued)
I
O
SET DAY TIME
(-) 5:30 am (+)
I
O
NIGHT TIME MODE
CHILL CHILL
I
O
SET NIGHT TIME
(-) 11:30 pm (+)
(-) minus
(+) plus
enter
(-) minus
(+) plus
enter
This feature allows the operator to set a defrost time for product.
DEFROST BEGIN
I
O
DEFROST BEGIN
(-) 11:00 pm (+)
(-) minus
(+) plus
enter
Low level detect will alert the operator when product is getting low in a hopper(s) based on being below the
level probe. The alert will appear from the home screen and will turn off when the hopper(s) is filled.
LOW LEVEL DETECT
I
O
Low Level Detect
(-) OFF (+)
Toggle
Toggle
enter
I
O
Low Level Detect
(-) ON (+)
12
SETTINGS (continued)
PROGRAMMING
This feature is only available if Low Level Detect is enabled. It allows the operator to set a chill time for
when product is low in the hopper(s). After the set amount of time the product would switch from ICE to
CHILL if left low in the hopper(s).
LOW LEVEL TO CHILL
I
O
LowLevelTo CHILL
(-) 90 min (+)
enter
(-) minus
(+) plus
This software allows the operator to adjust the refill threshold for LAF and CFV models. At the refill thresh-
old screen, with no product in the hopper, the number on the left (top) of the screen is normally around
250. The number on the right of the screen is factory set to 155. The factory set point should not need any
adjustment.
REFILL THRESHOLD
I
O
250 L REFILL 155
(-) THRESHOLD (+)
enter
(-) minus
(+) plus
I
O
250 R REFILL 155
(-) THRESHOLD (+)
Left Hopper
Right Hopper
13
AUTO REFILL
The auto refill feature will only appear for CFV and LAF models. The following software screens are con-
tained within the Auto Refill menu.
Press the left or right hidden switch to set Delayed Refill. See page
14 for more information about this menu.
DELAYED REFILL
( - ) ON ( + )
FILL TIME SECONDS
( - ) 5 ( + )
250 L REFILL 155
( - ) THRESHOLD ( + )
DELAY TIME MINUTES
( - ) 5 ( + )
NEXT PAGE
Press the left or right hidden switch to adjust Fill Time Seconds. See
page 14 (Delayed Refill) for more information about this menu.
Press the left or right hidden switch to adjust the left hopper refill thresh-
old. See page 12 for more information about this menu.
Press the left or right hidden switch to adjust Fill Time Minutes. See
page 14 (Delayed Refill) for more information about this menu.
AUTO REFILL?
NO YES
250 R REFILL 155
( - ) THRESHOLD ( + )
Press the left or right hidden switch to adjust the left hopper refill thresh-
old. See page 12 for more information about this menu.
L PRESSURE R
GOOD NEXT LOW
See page 12 for more information about this menu.
PROGRAMMING
14
END
AUTO REFILL
(continued)
TEST REFILL
NO YES
Press left or right hidden switch to enter and test the refill valves. See
page 16 for more information about this menu.
PROGRAMMING
DELAYED REFILL
I
O
DELAYED REFILL
(-) ON (+)
enter
I
O
FILL TIME SECONDS
(-) 15 (+)
This feature allows the operator to see the PSI status for the left and right sides. The pressure status is only
available for CFV models.
PRESSURE
I
O
L PRESSURE R
GOOD NEXT LOW
This feature allows the operator to activate the refill valves for calibration or testing purposes.
TEST REFILL
I
O
TEST REFILL?
NO YES
This feature is used to fill the hoppers in small increments until product touches the level probe. Between
increments, there is a delay time that can be adjusted in programming. This can prevent the frozen product
that is already in the hopper from becoming diluted and not ready to serve. The delay and fill times are to be
determined and set based on each application as desired by the operator.
I
O
DELAY TIME MINUTES
(-) 5 (+)
enter
(-) minus
(+) plus
I
O
LEFT REFILL VLV
ON NEXT OFF
select On
select Off
I
O
RIGHT REFILL VLV
ON NEXT OFF
select On
select Off
15
PROGRAMMING
ADVANCED SETTINGS
The following software screens are contained within the Advanced Settings menu.
Press the right hidden switch to enter Set Language. See page 16
for more information about this menu.
SET LANGUAGE?
NO YES
DAYS TO CLEAN
( - ) 5 ( + )
SWITCHES
( - ) ON ( + )
NO THICK ADJUST
( - ) NEXT ( + )
END
Press left or right hidden switch to adjust Days to Clean. See page 16
for more information about this menu.
Press left or right hidden switch to set Switches. See page 17 for more
information about this menu.
See page 17 for more information about this menu.
ADVANCED SETTINGS?
NO YES
AD MESSAGE
( - ) DISABLED ( + )
Press left or right hidden switch to set Ad Message. See page 17 for
more information about this menu.
SET PASS WR 0000
( - ) NEXT ( + )
Press left or right hidden switch to set a Password. See page 18 for
more information about this menu.
16
PROGRAMMING
This feature allows the operator to scroll through a list of languages stored in the software and select one
for the display messages.
SET LANGUAGE
I
O
SET LANGUAGE?
NO YES
ADVANCED SETTINGS (continued)
I
O
SET LANGUAGE?
( - ) ENGLISH ( + )
DAYS TO CLEAN
I
O
DAYS TO CLEAN ON
( - ) NEXT ( + )
enter
I
O
ARE YOU SURE?
NO YES
toggle
toggle
enter
confirm
This feature allows the operator to set a cleaning schedule from 1 to 14 days. The default screen is 0 or
OFF. Selecting ( - ) will prompt the screen Days To Clean. Once a number of days is selected the screen will
prompt two functions, CLEAN MESSAGE ONLY or CLEAN LOCKOUT. On the day selected, the display will
toggle between DATE & TIME and CLEAN DUE TODAY. The dispenser will lock into night mode at midnight
if “Clean Lockout” is activated. To reset the Clean Due Today message or lockout, two functions must be
performed. Either power off the dispenser using the I/O (ON/OFF) switch and allow the barrels or cooling
drums to warm over 50°F, or scroll to the Cleaning Guide and perform the cleaning service. The barrels will
warm to over 50°F when cleaned with warm water and the message will disappear. NOTE: The “CLEAN
DUE TODAY” and “CLEAN DUE NOW” messages may be customized on late model machines. All opera-
tors should be trained to know the machine needs cleaning when the custom message appears on the
display.
select On
select Off
I
O
CLN MESSAGE ONLY
( - ) NEXT ( + )
I
O
CUSTOM MESSAGE
( - ) DISABLED ( + )
I
O
MODIFY MESSAGE?
NO YES
I
O
SCROL THRU ALPHA
NEXT -> NEXT LETTER
I
O
NEW CLEAN MESSAGE
SCROLL DONE NEXT
I
O
SAVE ?
NO EDIT YES
I
O
CUSTOM MESSAGE
SETUP COMPLETE
17
This feature will lockout the ability to change settings for “SET THICKNESS” within Daily Operations sub-
menus. The operator will need to enter the password before returning to Daily Operations for adjustments.
THICK ADJUST
I
O
NO THICK ADJUST
(-) NEXT (+)
ADVANCED SETTINGS (continued)
I
O
YES THICK ADJUST
( - ) NEXT ( + )
toggle
toggle
enter
PROGRAMMING
This function allows the operator to lockout the touch pad. Selecting + (ON) provides no time delay on
switches except for the center (GOURMET) hidden switch. Selecting - (LOCKOUT) provides a five second
hold to wake up the touch pad and a two minute time frame from last button pressed to make adjustments
before returning to sleep mode (five second hold).
SWITCHES
I
O
SWITCHES
(-) ON (+)
toggle
toggle
enter
I
O
SWITCHES
( - ) LOCKOUT ( + )
This function allows the operator to create an AD Message that will toggle with the Home Screen mes-
sages.
AD MESSAGE
I
O
AD MESSAGE
( - ) ENABLED ( + )
enter
toggle
toggle
I
O
MODIFY MESSAGE
NO YES
I
O
SCROL THRU ALPHA
NEXT -> NEXT LETTER
I
O
NEW AD MESSAGE
SCROLL DONE NEXT
I
O
SAVE?
NO EDIT YES
I
O
AD MESSAGE
SETUP COMPLETE
18
This is the function to set the password using a range of 0 to 9999 (the factory default is 0). When the
password is set, the operator can only access the first four functions: Cleaning Guide, Set Consistency, Test
Augersand Set Date & Time.
SET PASSWR 0000
I
O
SET PASSWORD 0
( - ) NEXT ( + )
set
(-) minus
(+) plus
I
O
SET PASS WR 9999
( - ) NEXT ( + )
PROGRAMMING
ADVANCED SETTINGS (continued)
19
SERVICE SETTINGS
The following software screens are contained within the Service Settings menu.
Press the right hidden switch to set PM Complete. See page 20 for
more information about this menu.
PM COMPLETE?
NO YES
12 MONTH PM
( - ) ON ( + )
ENTER ASSET #
AN000000
SERVICE PHONE #
( - ) DISABLED ( + )
NEXT PAGE
Press the left or right hidden switch to set 12 Month PM. See page 20
for more information about this menu.
Press the left or right hidden switch to Enter Asset Number. See page
21 for more information about this menu.
Press the left or right hidden switch to set Service Phone Number.
See page 21 for more information about this menu.
SERVICE SETTINGS?
NO YES
RESTORE DEFAULT?
NO YES
Press the right hidden switch to Restore Defaults. See page 21 for more
information about this menu.
SOFTWARE VERSION
See page 22 for more information about this menu.
PROGRAMMING
20
SERVICE SETTINGS (continued)
Press the right hidden switch to enter USB Functions. See page 22
for more information about this menu.
USB FUNCTIONS?
NO YES
EVENT LOG
PREV EXIT NEXT
ACCUMULATORS
PREV EXIT NEXT
Press the right hidden switch to view Event Log. See page 22 for more
information about this menu.
Press the right hidden switch to view Acumulators. See page 22 for
more information about this menu.
END
PROGRAMMING
PREVENTIVE MAINTENANCE
I
O
PM COMPLETE?
NO YES
I
O
12 MONTH PM
( - ) ON ( + )
This feature is used to reset a reminder message Preventive Maintenance Due every year. The machine
will not shut down if service is not performed. When the service is performed and the message is answered
YES, the time and date is recorded for another year to elapse. This feature can be DISABLED by pressing
(-) switch.
enter
select Off
select On
21
ENTER ASSET #
I
O
ENTER ASSET #
AN000000
enter
This feature allows the operator to restore the machine to factory default settings.
RESTORE DEFAULTS?
I
O
RESTORE
DEFAULTS?
This feature is used to set the asset number using a range of 0 to 999999 (the factory default is 0). It is
used to track the usage or service of an individual machine within a group.
minus (-)
plus (+)
SERVICE SETTINGS
(continued)
PROGRAMMING
This feature allows the operator to record the Service Phone Number for quick reference. Default is set to
DISABLE. Pressing (-) or (+) sets to ENABLE.
SERVICE PHONE #
I
O
SERVICE PHONE #
( - ) ENABLE ( + )
I
O
MODIFY SERVICE?
NO YES
I
O
SCROL THRU ALPHA
NEXT-NEXT LETTER
I
O
555-555-5555
SCROL DONE NEXT
I
O
SAVE ?
NO EDIT YES
22
This screen will display the current software version installed on the machine. Additional information such
as bootloader, application, serial #, current up time, lifetime power and machine # can be viewed when
scrolling through.
SOFTWARE VERSION
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SOFTWARE VERSION
SERVICE SETTINGS (continued)
PROGRAMMING
USB FUNCTIONS
This features provides detailed statistics and logs that can be exported to an external USB device.
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USB FUNCTIONS
NO YES
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PLEASE INSERT
USB FLASH DRIVE
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EXPORT ALL
NO YES
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XPORT ACUMULATRS
NO YES
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EXPORT EVENT LOG
NO YES
EVENT LOG
This features provides the last 12 logged system events. The even number, description, date and time will
rotate every 4 seconds on the display. Press next to scroll through each event.
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EVENT LOG
PREV EXIT NEXT
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EVENT #1
E-112
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SHAFT SEAL
MAINTENANCE DUE
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JAN. 11, 2022
4:37:42 PM
23
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COMPRESSOR
ON NEXT OFF
SERVICE TOOLS
The following software screens are contained within the Service Tools menu.
Press the right hidden switch to set PM Complete. See page 23 for
more information about this menu.
TEST OUTPUTS?
NO YES
TEST SWITCHES?
( - ) ON ( + )
Press the left or right hidden switch to set 12 Month PM. See page 24
for more information about this menu.
SERVICE TOOLS?
NO YES
PROGRAMMING
TEST OUTPUTS
This will allow the operator to test the operation of individual components and outputs of the control board.
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TEST OUTPUTS
NO YES
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TEST AUGERS?
NO YES
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LEFT AUGER TEST
NEXT FORWARD
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RIGHT AUGER TEST
NEXT FORWARD
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TestRefrigValve
NO YES
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COMPRESSOR TEST
NO YES
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Compressor+Valves
ON PleaseWait20
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FAN CONDENSER
ON NEXT OFF
Next Page
24
Install Date
The following three screens will scroll after advancing past the function “Restore Defaults”. The Install Date
and Time is recorded when the dispenser is powered on for the first 100 hours. The Install Date and Time
cannot be reset and is stored in permanent memory.
SERVICE TOOLS
(continued)
PROGRAMMING
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LEFT LID LIGHT
ON NEXT OFF
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RIGHT LID LIGHT
ON NEXT OFF
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LEFT PTC ####
ON NEXT OFF
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RIGHT PTC ####
ON NEXT OFF
TEST OUTPUTS
TEST SWITCHES
This will allow the operator to test the operation of individual switches on the membrane touch pad.
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TEST SWITCHES?
NO YES
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TO EXIT DEPRESS
POWER I/O SWITCHES
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NO SWITCHES
ARE DEPRESSED
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INSTALL DATE
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JAN. 25, 2019
3:55:25 PM
I
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BUNN ULTRA NX
VERSION #_._
25
PROGRAMMING
Temp and Torque
Press and hold the left and right hidden buttons for 5 seconds to display the TEMP & TORQUE. The tem-
perature of each cooling drum and the hot gas temperature will toggle back and forth. The auger torque is
displayed continuously. Press and release the hidden buttons to return to HOME SCREEN. The TEMP &
TORQUE mode is typically used for service.
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DISPLAY
TEMP & TORQUE
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0 - fan cmp 0 -
72 L 71 R
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Left Torque
Left Valve State
Fan State
Compressor State
0 - fan cmp 0 -
htr 70 H htr
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10:45:30 AM
off off
press & hold
Left Barrel Temp Right Barrel Temp
Left PTC
Heater State
Hot Gas
Temperature
Right PTC
Heater State
Screens below will alternate back and forth.
Small Block (-): Left or Right Refrigerant Solenoid is OFF
Large Block ( ): Left or Right Refrigerant Solenoid is ON
Lower case fan: Means condenser fan is not operating.
Upper case FAN: Means condenser fan is powered and operating.
Lower case cmp: Means compressor is not operating.
Upper case CMP: Means compressor is powered and operating.
Lower case htr: Means the PTC heater is off.
Upper case HTR: Means the PTC heater is on.
The left or right number (currently showing 0) is a real time operation number (torque) related to the Thickness setting
multiplied by three.
Right Valve State
Right Torque
26
Updating Software
To begin you will need an external USB device that contains a software
file for updating the control board.
1. Power off the machine.
2. Loosen the bolts beneath the left and right panels to remove the pan-
els. (fig 1&2)
3. Remove the screw from the lower front panel on both sides. (fig 3)
4. Remove the drip tray.
5. Remove the slotted screw from the front panel behind the drip tray.
6. Remove the front panel by pulling downward and away from the ma-
chine. Be cautious upon removing the panel because of the membrane
switch that needs to be disconnected.
7. The USB port is on the right-side of the control board (facing front of
machine). Insert the external USB device that contains software. (fig 4)
8. Power on the machine.
9. The display will show that the system is booting up and then show that
programming is commencing. (fig 5)
10. Allow time for the software to update.
11. Power off the machine and remove the USB device.
12. Reinstall the front panel and connect the membrane switch.
13. Reinstall the side panels and drip tray.
14. Software update is complete.
fig 1
fig 2
fig 3
PROGRAMMING
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BOOTING
PLEASE WAIT
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PROGRAMMING 0%
ULTRA_NX_00_00
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BUNN ULTRA(R)NX
VERSION C00.00
fig 4
fig 5
