Stoelting U421/U444 - Manual (Page 27)

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The freezer is designed to dispense the product at a
reasonable draw rate. If the freezer is overdrawn, the
result will be a soft product and air pops. If this should
occur, allow the freezer to run for approximately 30
seconds before dispensing additional product. After a
while the operator will sense or feel when the freezer is
beginning to fall behind, and will slow down on the rate of
draw so as not to exceed the freezer's capacity.
Do not operate the freezer when the MIX LOW light is
on or with less than 1-3/4" (4.4 cm) of mix in the
mix container. Refill the mix container immediately.
3.11 MIX INFORMATION
Mix can vary considerably from one manufacturer to
another. Differences in the amount of butter-fat content and
quantity and quality of other ingredients have a direct
bearing on the finished frozen product. A change in freezer
performance that cannot be explained by a technical
problem may be related to the mix.
Proper product serving temperature varies from one
manufacturer's mix to another. Soft serve mixes should
provide a satisfactory product in the 17° to 20°F (-7° to
-6°C) range. Most shake mixes freeze to proper consis-
tency at 27°F (-2.8°C). Diet and low-carb mixes typically
freeze to proper consistency at higher temperatures.
When checking the temperature, stir the thermometer in
the frozen product to read the true temperature.
Mix does not improve with age. Old mix, or mix that has
been stored at too high a temperature, can result in a
finished product that is less than satisfactory from the
appearance and taste standpoint. To retard bacteria
growth in dairy based mixes, the best storage temperature
range is between 36° to 40°F (2.2° to 4.4° C).
C. Place the mix pump switch in the ON position. The
mix pump switch is located in the upper left hand
corner, inside the refrigerated cabinet. Immediately
open the spigot and let approximately 8 ounces of
liquid mix with sanitizing solution drain out of the
spigot.
D. Close the spigot and open the air bleed valve on the
front door by pushing the valve in and holding. Allow
the barrel to fill until the mix level is 1/2" (2.7 cm)
below air bleed valve, then release valve and pull
closed to lock in place.
E. Start the compressor and drive by placing the
CLEAN-OFF-SERVE switch in the SERVE position
F. The product will be ready to serve after the compres-
sor and drive have cycled off, or in approximately 12
minutes.
G. The refrigeration is automatically actuated when the
spigot is opened. For normal dispensing, open the
spigot no more then 90°. (This is when the handle
knob is pointed directly away from the front door.)
This position provides excellent control over the prod-
uct and aids in making desired shaped portions.
Close spigot completely after dispensing.
Figure 21. Refrigerated Cabinet
Mix Low
Sensor