Duke 957R, Operator'S Manual, Page: 27 / 56

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DUKE Model 957R Soft Serve Freezer
8 Start-up Instructions
NOTE: It is your responsibility to be aware
of, and conform to, the requirements for
meeting federal, state and local laws con-
cerning the frequency of cleaning and sani-
tizing the freezer.
IMPORTANT
Never let the sanitizer remain in the
freezer for more than 15 minutes.
— continued
8.1 Sanitizing
CAUTION
To prevent bacteria growth,
use only approved
sanitizers to sanitize the
machine. Sanitizing must be
done just prior to starting
the machine. Failure to do
so could create a health
hazard.
The washing and sanitizing instructions
explained in this manual are important
procedures to remove bacteria and
maintain a clean, sanitary freezer. IDQ
requires that the soft serve freezer be
disassembled and washed daily accord-
ing to the instructions in the manual
before sanitizing to insure the best
possible cleanliness.
IMPORTANT:
Do not use unapproved sanitizer or
laundry bleach to clean or sanitize
your freezer. These materials may
contain high concentrations of chlo-
rine and will chemically attack freezer
components.
CAUTION
The RMT will be
pressurized during
operation. Make sure all
components and fasteners
are secure before start-up.
1. Prepare 4 gallons (15.2 liters) of
sanitizing solution for each cylinder.
Sanitizing solution must be mixed
according to manufacturer’s instruc-
tions to yield 100 PPM strength
chlorine solution (example: Stera-
Sheen Green Label). Use warm
water (100° to 110°F or 38 to 43°C)
to wash, rinse, and sanitize.
2. Clean the interior mix container
walls and the underside of the
container covers with sanitizing
solution and the appropriate brush
provided.
3. Insert the pickup tubes into the
sanitizing solution and clean the
outside portion. If plastic mix bag
systems are used, be sure all
adaptors and items that will come in
contact with mix are sanitized.
4. Place an empty container under the
dispensing head.
5. Open the spigots and the air relief
plugs by lifting up until the plugs
touch the bottom of the switch box.
6. Reconnect the main power supplies
to the freezer. Turn the pump switch
to “ON”. This will push the sanitizer
up into the cylinders.
7. When the sanitizing solution flows
out the spigot, leave open for 2
minutes. Then close the spigot.
8. When sanitizer flows out the bottom
of the head, close the air relief plug.