Bunn POWDER AUTO FILL service manual Adjustments

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ADJUSTMENTS

When using the Powder Auto-Fill with a new powdered granita mix, follow the procedure outlined below to adjust the Powder Auto-Fill to produce the correct recipe.

1.Determine the mix ratio of powdered granita mix. Convert the recipe so that it is expressed in terms of weight units [grams (g), dry ounces (oz), or pounds (lbs)] of powdered granita mix to fluid ounces (fl.oz.) of water [1 gallon (gal) = 128 fl.oz.; 1 liter (l) = 33.8 fl.oz.].

2.The delivery rate of the water ingredient is factory preset to 1 fl.oz. per second. Therefore, it is only necessary to adjust the delivery rate of the pow- dered granita mix. Adjustment is accomplished as follows:

a) Place the Powder Auto-Fill on top of a fully assembled CDS taking care to align the Powder Auto-Fill guide rails over the rollers on the CDS guide rails.

b) Connect the Powder Auto-Fill power cord to the outlet located on the CDS auger motor cover.

c) Attach a flexible water line to the .25" flare fitting on the back panel of the Powder Auto-Fill.

NOTE: A water strainer assembly (BUNN-O-MATIC #23820.1000) should be installed in line prior to the flexible water line.

d)On the CDS control panel, make the following switch settings:

i)POWER- "ON"

ii)DAY/NIGHT- "DAY"

e)Pull the Powder Auto-Fill fully forward on its support rails

f)Fill the Powder Auto-Fill product hopper as fol- lows:

i)Pull the slide gate closed on the Powder Auto- Fill product hopper elbow and remove the product hopper from the Powder Auto-Fill.

ii)Remove the lid from the product hopper and fill the hopper with a powdered granita mix.

iii)Install the product hopper into the Powder Auto-Fill.

g)Place the ON/OFF switch at the Powder Auto-Fill whipper panel to "ON".

h)After allowing 5 seconds for the Powder Auto-Fill to initialize, observe the door lamp on the whipper panel. The door lamp should not be lit. If the door lamp is lit, consult the fault list and clear the fault before proceeding.

i)Remove the hole plug on the whipper panel. Using a screwdriver, set potentiometer to approxi- mately mid range.

j)Remove the mixing chamber from the Powder Auto-Fill and place a small container, such as a cup, under the product hopper ejector elbow.

k)Push the slide gate on the product hopper ejector elbow to the OPEN position.

l)Momentarily set the TEST/SERVICE switch on the whipper panel to the TEST position.

m)The hopper motor will run and dispense pow- dered granita mix for 10 seconds.

n)After the Powder Auto-Fill has finished the 10 second throw test, weigh the dispensed product.

o)Determine the dispense rate of the powdered product (weight units per second) by dividing the measured weight by 10.

p)Compare the measured dispense rate with the mix ratio in step 1.

q)Adjust the MIN/MAX control clockwise to in- crease the dispense rate or counterclockwise to decrease the dispense rate of the powdered granita mix.

r)Repeat steps l through q as necessary until proper mix ratio is achieved.

s)Replace the mixing chamber removed in step j. Replace hole plug.

3.Once the mix ratio has been adjusted, the Powder Auto-Fill can be run with the door open to allow the user to catch dispensed product for brix testing as follows:

a)Hold a container under the dispense tip of the Powder Auto-Fill.

b)Hold the TEST/SERVICE switch on the whipper panel to the SERVICE position.

c)When the container is filled to the desired level, release the TEST/SERVICE switch.

d)Measure the brix using the appropriate measur- ing device.

e)Remove the hole plug. Using a screwdriver, adjust the potentiometer clockwise to increase the brix or counterclockwise to decrease the brix of the product. Replace the hole plug.

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Contents Bunn Powder Auto Fill Introduction WarrantyInitial SET-UP User Notices Operating Instructions Adjustments Rinse and dry each item thoroughly before reas- sembling CleaningRecommended Daily Cleaning and Maintenance Tips Normal operation Powder Auto-Fill ready to Fault ListDispense Door not closedProblem Probable Cause TroubleshootingCDS product tastes watery or sugary ProblemRemedy Problem Probable Cause Remedy Improper adjustment of product Procedures. SeeInstall a regulator if necessary to Product overflows CDS hopper Control Board and ProbeComponent Access ServiceHopper Lid Auger Drive ComponentsRetainer Clip Spacer Dust Seal Hopper BaseAuger Drive Motor Diagrams and check wiring harnessMixing Chamber Frother and MIXING/WHIPPER ChamberVolts ac for 120 volt models Volts ac for 230 volt CE models Whipper MotorWhipper Motor Install dispense tip into the bottom of the whipper chamberIf voltage is present as described, proceed to #9 If voltage is present as described, proceed to #5Test Procedure Low Product Detect Remove the control board Instal the new control board using the four #6-32 keps nutsLocation TEST/SERVICE SwitchDisconnect the wires from the switch terminals Main Power ON/OFF Switch Main Power ON/OFF SwitchRefer to when reconnecting the wires Lamp Cord AssemblyRemove new nut and washer from new lamp cord connector Lamp Cord ConnectorDisconnect the lamp cord from the lamp cord connector Close the dispenser door Lamp HOLDER/SOCKET AssemblyTransformer TransformerPotentiometer PotentiometerHopper Level Indicator Hopper Level IndicatorHopper Switch Hopper SwitchDoor Switch Door SwitchPressure Regulator and Needle Valve AdjustmentsDispense Solenoid Valve Location Dispense Solenoid ValveBLK RED Wiring Diagrams Schematic Wiring Diagram PAFWiring Diagrams Schematic Wiring Diagram Pafa

POWDER AUTO FILL specifications

The Bunn Powder Auto Fill is a cutting-edge coffee brewing system designed to enhance efficiency and precision in commercial environments. This innovative machine simplifies the brewing process by incorporating automated features that ensure consistent quality and optimal performance.

One of the standout features of the Bunn Powder Auto Fill is its ability to automatically dispense powdered beverage mixes. This is made possible through advanced technology that streamlines the process, reducing the need for manual input. With the push of a button, operators can quickly prepare a variety of specialty beverages, including cappuccinos, lattes, and flavored coffee drinks. This not only saves time but also minimizes the likelihood of human error in measurements, ensuring each cup is consistently brewed to perfection.

The Bunn Powder Auto Fill is designed with versatility in mind. It accommodates a wide range of powdered ingredients, allowing businesses to offer an extensive menu without investing in multiple machines. This adaptability makes it an ideal solution for coffee shops, convenience stores, and other establishments where customer preferences may vary.

Moreover, the machine features a robust heating system that provides rapid brewing capabilities. This ensures that beverages are served at the optimal temperature, enhancing the overall customer experience. The integrated hot water faucet allows for quick access to hot water, making it easy to prepare additional drinks or even food items like soups and oatmeal.

Durability is another key characteristic of the Bunn Powder Auto Fill. Built with high-quality materials to withstand the rigors of daily use, this machine is designed to deliver reliable performance over time. Its compact and sleek design allows for easy placement in any setting, taking up minimal counter space while blending seamlessly with existing décor.

Additionally, the Bunn Powder Auto Fill incorporates user-friendly controls and displays. This intuitive interface allows staff to quickly familiarize themselves with the machine's operation, which is crucial in high-demand environments. The system also features programmable settings, enabling users to customize brew strengths and portion sizes according to customer preferences.

In conclusion, the Bunn Powder Auto Fill is a game-changer for businesses looking to elevate their beverage offerings. With its automation, versatility, reliability, and user-centric design, this machine not only boosts efficiency but also enhances the quality of every cup served. Whether in a bustling café or a busy convenience store, the Bunn Powder Auto Fill stands out as a smart investment for any beverage-focused establishment.
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