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Calibration Instructions
Calibration tools required:
□ Standard medium to small blade stub screwdriver.
□ Ratio brix cup (PN: 33095.0000)
Step 1. Enter programming by depressing the middle hidden "Gourmet" button for 5
seconds. Navigate to the "Test Refill" menu by depressing the "Gourmet" button
and select yes.
Step 2. Align and hold the brix cup under the product inlet nozzles attached to the hopper.
Step 3. Depress and hold the left or right button to activate product dispense. Allow
enough time to fill the brix cup 3/4 full for ratio check.
Step 4. Place the brix cup with sample on a level surface and compare the syrup and water for same height. If the
ratio is not correct, make an adjustment to the brix/ratio by turning the water screw adjustment valve located
on top of the motor cover until you reach the correct ratio.
Step 5. Once the ratio is calibrated, exit programming by depressing the "Gourmet" button until you pass the
"Restore Factory Default" menu.
Step 6. The product is now calibrated and ready for the initial fill of the hoppers. The automatic fill feature can be
turned on by selecting the "Auger Refill On" mode by depressing the auger button for each side.
Note: Some models also include a "Delay Refill" option. The feature is used to fill the hoppers in small increments un-
til 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 end user or supplier.
Once the "Delay Refill" feature has been activated in programming, the feature will not operate until both hopper refill
probes have been satisfied with product after the first initialization or plugging in of the machine.
DELAYED REFILL
(-)
The BUNN Ultra utilizes the "Delay Refill" feature and is defaulted in the On position with default values of:
•
10 second fill time
•
7 minute delay time
16
Ultra Training Manual
DELAYED REFILL
(-)
OFF
(+)
OFF
(+)
FILL TIME SECONDS
(-)
DELAY TIME MINUTES
(-)
250 L REFILL 155
(-) THRESHOLD (+)
Brix Cup
FILL TIME SECONDS
(-)
15
(+)
DELAYED REFILL
(-)
OFF
(+)
DELAY TIME MINUTES
(-)
5
(+)
15
(+)
5
(+)
250 R REFILL 155
(-) THRESHOLD (+)
(-)
OFF
(+)
250 L REFILL 155
(-) THRESHOLD (+)
TEST REFILL ?
NO
250 L REFILL 155
(-) THRESHOLD (+)
ACTIVATE VALVE
LEFT DONE RIGHT
TEST REFILL ?
NO
ACTIVATE VALVE
LEFT DONE RIGHT
FILL TIME SECONDS
(-)
15
(+)
DELAY TIME MINUTES
(-)
5
(+)
FILL TIME SECO
(-)
15
DELAY TIME MINU
250 R REFILL 1
(-)
5
(-) THRESHOLD
YES
250 R REFILL 1
(-) THRESHOLD
YES
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