77X INSTALLATION & OPERATION MANUAL
771/772/773/774 MODELS
14
5.3 Water Flow Rate and Brix
The water flow rate and brix for each barrel must be verified and adjusted for optimal performance. Use the following
procedure to adjust the water flow rate and set the brix for each barrel:
For multi-flavor dispensers, the flavor injection modules will also need to be calibrated. Please refer to the Multi-Flavor
Addendum (24-M4MF-0001) for the calibration procedure.
The target brix for most sugar flavors is between 13.5 and 15. The target brix for most “light” flavors will be lower, usually
between 9 and 10. Check the specifications for the flavors if unsure of the target brix.
Note: Light or diet products have a low brix and can cause problems with the dispenser if not properly set up. Although
these products have ingredients to replace the antifreezing properties of sugar, they can still create excessive ice if not
carefully brixed according to their specifications. Low brix issues will be associated with events such as audible ice
scraping during freeze and low beater problems.
1 Turn the syrup shuto valve to the o position (Figure 5.2).
2
Adjust the water ow rate to 1.5 oz/sec (44.4 ml/sec) by dispensing water from the solution module
through the sample port for 10 seconds into a measuring cup. The amount measured should be 15
oz (444 ml). Turn the ow control clockwise to increase the ow and counterclockwise to reduce
the ow.
Note: The WATER AND BRIX CALIBRATION screen under the MAINTENANCE MENU can be used to
help with timing.
3
Turn the syrup shuto valve to the on position and dispense a cup of uid from the sample port to
establish a stable ow.
4
Once a good water and syrup mixture is obtained, dispense a 16 oz sample and measure the
sample brix with a refractometer. Be sure to thoroughly mix the sample rst by pouring back and
fourth between two cups.
5
Turn the syrup ow control counterclockwise to decrease the brix. Turn the syrup ow control
clockwise to increase the brix.
6 Dispense and discard several samples after adjusting the brix.
Water Flow
Control
Syrup Flow
Control
Sample Port
Sample Valve
(closed position
shown)
Water Shutoff
Valve (open
position shown)
Syrup Shutoff
Valve (open
position shown)
Turning Clockwise
Increases Flow Rate
+
–
Turning Counterclockwise
Decreases Flow Rate
Flow Rate Adjustment
Figure 5.2 Solution Module
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