Bunn FMD0013000-UP service manual Adjustments, Hopper Dispense Rate of Product, Hopper Throw Test

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Adjustments

The hot or cold beverage solenoids are preset to dispense approximately 9/10 ounce per second. This amount can be adjusted:

1.Disconnect the dispenser from the power source.

2.Remove the small left side access panel.

3.Rotate the control at the base of the desired solenoid(s) clockwise to decrease or counterclockwise to increase the amount of water.

4.For cold beverage adjustment remove the 1-1/2" plug on the lower left side of the dispenser and rotate the needle valve clockwise to decrease or counterclockwise to increase the amount of cold water.

HOPPER DISPENSE RATE OF PRODUCT

NOTE: The hopper dispense rates are preset at the factory. With 22 tooth gear and auger wire the preset dis- pense rate is approximately 3 to 5 grams per second. With 30 tooth gear and auger wire the preset dispense is approximately 5 to 7 grams per second. The hopper dispense rates can be individually programmed to a range of dispense rates from approximately 1.5 to 12 grams per second, as follows:

1.Place the rinse/run switch in the center (program) position.

2.Hold the increase/decrease switch in the desired (increase or decrease) position.

3.While holding the increase/decrease switch, press and release the dispense switch for the chamber you wish to adjust. Each time the dispense switch is pressed, the rinse L.E.D. will flash, and the motor speed for that hopper will be increased/decreased by approximately 2 1/2%.

4.Return the rinse/run switch to the run position after hopper motor speed adjustments are complete.

5.Once any of the three hopper motors has been programmed to the desired speed, either or both of the other hopper motors can be set to the same speed as follows:

a.Place the rinse/run switch in the center (program) position.

b.Press and hold the dispense switch that has been programmed for the correct speed.

NOTE: Care must be taken not to exceed 5 seconds, or a hopper throw test will occur.

c. Momentarily press the dispense switch for the hopper motor to be programmed. The rinse L.E.D. will light for approximately 1 second, indicating that the speeds have been set equal.

d. Release both dispense switches.

e. Repeat step 5. b. through 5. d. for remaining hopper motor if desired.

f. Return the rinse/run switch to the run position after hopper motor speed adjustments are complete.

HOPPER THROW TEST

The hopper throw rate, grams per second (g/s) or ounces per second (oz./s), can be checked by automatically running the hopper motor for 10 seconds.

1.Remove the steam collector and mixing chamber from under the hopper to be checked.

2.Position a small cup under the hopper outlet.

3.Place the rinse/run switch in the center (program) position.

4.Press and hold the dispense switch of the appropriate chamber for 5 seconds. The hopper motor will run for 10 seconds at the programmed speed.

5.Remove the cup and weigh the dispensed product. To calculate the throw rate (g/s or oz./s), divide the total weight of the dispensed product by 10.

6.Replace the mixing chamber and steam collector, and return the rinse/run switch to the run position.

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Contents FMD-3 BUNN-O-MATIC Commercial Product Warranty User Notices Introduction Electrical Hook-Up Initial SET-UP CE Requirements Electrical RequirementsInitial fill & heat Plumbing RequirementsPlumbing HOOK-UP Early Models Plumbing HOOK-UP Late ModelsRunning a Rinse Sequence Preset Tank TemperatureRinse Timer Liquid Level ControlHopper Dispense Rate of Product AdjustmentsHopper Throw Test 24h CleaningDraining the hot water tank Preventive Maintenance