Vollrath U421 Water Cooled - Manual (Page 19)

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Figure 13. Draining Sanitizer
E. Place the CLEAN-OFF-SERVE switch in the CLEAN
position.
F. Check for leaks when the freezer barrel is first
pressurized with sanitizing solution.
1. Check for leaks at the plastic front door, the
0-rings may not be sealed.
2. Check the drain tray located at the right or left
side of the freezer for leaks.
3. Check inside cab unit for leaks at hose connec-
tions and manifolds.
G. Using a sanitized soft bristle brush or equivalent,
dipped in sanitizing solution, clean mix container.
H. After five minutes, open spigot to expel sanitizing
solution. Drain all solution from freezer. Figure 13.
I. Close the spigot and place the mix pump switch and
the CLEAN-OFF-SERVE switch in the OFF position.
The freezer is now sanitized and ready for adding mix.
3.4 INITIAL FREEZE DOWN AND OPERATION
This section covers the recommended operating proce-
dures to be followed for the safe operation of the freezer.
A. Sanitize just prior to use according to instructions.
B. Prepare the desired amount of mix and then fill stor-
age container with approximately 3 gallons (11
liters) or more of mix. Place a container(s) of mix in
the cooler. If drawing from a storage container, place
the draw tube through the cover to the bottom of the
container. If drawing from a bag in a box, remove the
cap, push out all of the air, and insert the adaptor.
C. Place the mix pump switch, located on the front of
the freezer, in the ON position. Immediately open
the spigot and let approximately 8 ounces (236 mil-
liliters) 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 inch (12,7
mm) 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 approximately
20 minutes.
Figure 14. Mix Containers
Mix Low
Sensor