Bunn JDF-4 Installation And Operating Manual page 14

ADJUSTMENT & OPTIONAL SETTINGS (cont)
Water Flow Testing and Adjustment
1. Enter the "Pump Speed Programming" mode by simultaneously press-
ing both "Hidden Switches" Fig 4 or Fig 5. Note that the beeper sounds
twice and that the "PROGRAM" indicator begins flashing.
2. Place a graduated measuring cup or the large chamber of the empty
brixing cup (BUNN-O-MATIC part number 33095.0000) under the ap-
propriate dispense nozzle.
3. Press and hold the desired "Product Dispense Switch" Fig 4 ("+/Stop
Switch" Fig 5, for portion control dispensers) for 5 seconds. Note
that the beeper sounds once per second (6 times, total) during this
period.
4. At the end of the 5 second period, the selected position will dispense water (no concentrate) for only 3 sec-
onds.
5. Measure the water dispensed.
6. Adjust the water flow rate Fig 7, (clockwise to increase flow rate; counterclockwise to decrease flow rate) to
the corresponding product mix ratio as follows:
Mix Ratio
(water + concentrate)
2+1
4+1
5+1
3+1 through 7+1
Above 7+1
High Viscosity Juice
*Maximum flow rate may be less depending on the water pressure supply at each location.
Note: Information for specific products listed in this table is to be used for reference only. Consult the product
label for exact mix ratio and/or brix %. See product label for target brix %.
7. Repeat steps 3 through 6 as necessary until the correct water flow rate is achieved.
8. Repeat steps 3 through 7 for the remaining dispense positions.
9. Exit the "Pump Speed Programming" mode by simultaneously pressing both "Hidden Switches". Note that
the beeper sounds twice and the "PROGRAM" indicator extinguishes.
Pump Speed Programming
1. Enter the "Pump Speed Programming" mode by simultaneously pressing both "Hidden Switches". Note that
the beeper sounds twice and that the "PROGRAM" indicator begins flashing.
2. To increase the pump speed, press and hold the right-hand "Hidden Switch" (filled circle) and then momen-
tarily press the "Product Dispense Switch" Fig 4 ("+/STOP Switch" Fig 5, for portion control dispensers).
Each time the "Product Dispense Switch "(+/STOP Switch") is pressed, the motor speed is increased by one
step (5 revolutions per minute [RPM].) Note that each step is confirmed by a single flash of the appropriate
"REFILL" indicator and a single tone from the beeper.
Adjust water flow rate to:
*3.75 fl. oz (111 ml)
per 3-second test
*4.0 fl. oz (118 ml)
per 3-second test
*4.0 fl. oz (118 ml)
per 3-second test
2.25 - 3.0 fl. oz (66.5 - 89 ml)
per 3-second test
Product
Prune Juice
Other
Orange Juice
Pineapple Juice
Cranberry Fruit Cocktail
Grapefruit Juice
Lemonade
Apple Juice
Fruit Punch
Grape Juice
Other
Other
As Required
14
FIG 7 Adjusting Water Flow
Using 1/4" allen wrench
Brix %
16.0%
*
11.8%
12.8%
14.0%
10.6%
12.0%
13.0%
*
*
-
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