Laf - Liquid Concentrate Set-Up (Brix Ratio) - Bunn ULTRA Technical Training Manual

Step 9: Remove the lid from the product hopper and fill the hopper with a powdered granita mix.
Step 10: Install the product hopper into the PAF.
Step 11: Place the ON/OFF switch at the PAF whipper panel to ON.
Step 12: After allowing 5 seconds for the PAF 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.
Step 13: Remove the hole plug on the whipper panel. Using a slotted screwdriver, set potentiometer to approximate-
ly mid range.
Step 14: Remove the mixing chamber from the PAF and place a small container, such as a cup, under the product
hopper ejector elbow.
Step 15: Push the slide gate on the product hopper ejector elbow to the OPEN position.
Step 16: Momentarily set the TEST/SERVICE switch on the whipper panel to the TEST position. The hopper motor
will run and dispense powdered granita mix for 10 seconds.
Step 17: After the PAF has finished the 10 second throw test, weigh the dispensed product.
Step 18: Determine the dispense rate of the powdered product (weight units per second) by dividing the measured
weight by 10.
Step 19: Compare the measured dispense rate with the mix ratio in
Step 1. Adjust the MIN/MAX control clockwise to increase the dis-
pense rate or counterclockwise to decrease the dispense rate of the
powdered granita mix. Repeat Steps 16 through 19 as necessary
until proper mix ratio is achieved.
Step 20: Once the mix ratio has been adjusted, the PAF can be run
with the door open. This will allow you to catch dispensed product for
brix testing.
Step 21: Hold a container under the dispense tip of the PAF.
Step 22: Hold the TEST/SERVICE switch on the whipper panel to the
SERVICE position.
Step 23: When the container is filled to the desired level, release the
TEST/SERVICE switch.
Step 24: Measure the brix using the appropriate measuring device.
Step 25: Remove the hole plug. Using a slotted screwdriver, adjust
the potentiometer clockwise to increase the brix or counterclockwise
to decrease the brix of the product. Replace the hole plug.
Adjustment for Powder Throw Weight
LAF – Liquid Concentrate Set-Up (Brix Ratio)
The SHURflo BRIX proportioning pump is driven by pressurized water, allowing the water and product to be delivered
at an exact ratio. The pump operates whenever there is a differential in pressure between the inlet and outlet water
sides of the pump.
Step 1: Purge water filter if applicable and confirm all water devices are properly placed, tubing connections are
properly clamped and lines are not kinked.
Step 2: Install the BIB connector onto the receiving product container.
Step 3: Locate concentrate and water tube that will connect to the quick disconnect fittings on the hopper, place wa-
ter and concentrate tube inside of an empty container to prime the concentrate and the purging of air out of the lines.
Step 4: Check 3 –way sanitize valve for dispense position and slowly turn on the main water supply.
Step 5: Allow the pump enough time to purge all the air out of the lines and check for desired flow rate of product
and water. Adjust pressure regulator if applicable or adjust water shut off
valve if using a fixed water flow regulator. When the desired flow rate is
achieved, turn off the water supply.
Step 6: See hopper assembly instruction sheet. Install level probe onto
the hopper.
Step 7: Connect the tubes to the hopper quick connect connectors. Keep-
ing the water and concentrate line accordingly to the correct hopper on a
two hopper machine.
Step 8: Turn on the water supply and the machine is now ready for start
up and initial fill of the hopper.
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Ultra Training Manual