Vollrath 219-02 - Manual (Page 14)

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3.3 SANITIZING PROCEDURES
For sanitizing to be effective, it must be performed after
the mix pump and freezer parts have been cleaned, and
just prior to filling the hopper or storage container with
mix. Sanitizing the night before is not effective.
To sanitize, refer to local sanitary regulations for applicable
codes and recommended disinfecting products and
procedures. The frequency of cleaning must comply with
local health regulations. Use a solution containing 100
PPM of free available chlorine. Use “Stera-Sheen Green
Label Sanitizer and Cleaner”, or others in accordance
with Health Inspection Requirements.
NOTE
Stoelting, Inc. has found that STERA-SHEEN
GREEN LABEL SANITIZER AND CLEANER does
an effective job of properly sanitizing and cleaning
a soft serve freezer. We therefore include a sample
with each new freezer. For further information read
the directions on the packet. Other products may
be effective.
CAUTION
PROLONGED CONTACT OF SANITIZER WITH
FREEZER MAY CAUSE CORROSION OF
STAINLESS STEEL PARTS.
In general, sanitizing may be conducted as follows:
A. Prepare three gallons (11 liters) of sanitizing solution
following manufacturer’s instructions, and pour into
hopper (hopper models) or place pump suction
(inlet) line into solution (remote models).
B. Place the mix pump switch in the ON position. Allow
freezer to fill until pump stops.
C. Check for leaks when the freezer barrel is first
pressurized with sanitizing solution.
D. Clean the following parts using a sanitized soft bristle
brush or equivalent, dipped in sanitizing solution. On
remote models, clean exterior of pump and sides of
mix container. On hopper models, clean exterior of
pump, sides and under cover of hopper.
E. Place the freezer in the CLEAN mode (no
refrigeration).
F. After five minutes, open spigot to expel sanitizing
solution.
G. Close the spigot and place the mix pump and freezer
switches in the OFF position.
The mix pump, connecting hoses and freezer are clean,
sanitized and ready for adding mix.
NOTE
Do not use brushes to clean hoses. Brushes can
cause scratches to interior of mix hose resulting
in areas that will harbor bacteria.
3.4 OPERATION OF MIX PUMP
This section describes the operation of the mix pump.
(See Fig. 4)
NOTE
The safety guard must be in place before the mix
pump will operate.
A. Sanitize just prior to use according to instructions in
Section 3.3.
B. Refer to freezer instruction manual for the operation
of the freezer.
C. Mix Operation:
1. Mix will enter pump thru mix inlet valve (A) on
position UP stroke.
2. On piston DOWN stroke, mix inlet (A) is forced
shut and mix is moved out thru mix outlet valve
(B) into the freezing chamber.
D. Air Operation:
1. Air enters pump thru air inlet check valve (C)
on piston DOWN stroke.