Model SO328
OPERATORS MANUAL
Manual No. 513591 Rev.2
This manual provides basic information about the machine. Instructions and suggestions are
given covering its operation and care.
The illustrations and specifi cations are not binding in detail. We reserve the right to make
changes to the machine without notice, and without incurring any obligation to modify or provide new parts for machines built prior to date of change.
DO NOT ATTEMPT to operate the machine until instructions and safety precautions in this
manual are read completely and are thoroughly understood. If problems develop or questions
arise in connection with installation, operation, or servicing of the machine, contact Stoelting.
stoeltingfoodservice.com
Stoelting Foodservice Equipment
502 Highway 67
Kiel, WI 53042-1600
U.S.A.
Main Tel: 800.558.5807
Fax: 920.894.7029
Customer Service: 888.429.5920
Fax: 800.545.0662
Email: foodservice@stoelting.com
© 2014 PW Stoelting, LLC
A Few Words About Safety
Safety Information
Read and understand the entire manual before
operating or maintaining Stoelting equipment.
This manual provides the operator with information
for the safe operation and maintenance of Stoelting
equipment. As with any machine, there are hazards
associated with their operation. For this reason safety
is emphasized throughout the manual. To highlight
specifi c safety information, the following safety defi ni-
tions are provided to assist the reader.
The purpose of safety symbols is to attract your attention to possible dangers. The safety symbols, and
their explanations, deserve your careful attention
and understanding. The safety warnings do not by
themselves eliminate any danger. The instructions
or warnings they give are not substitutes for proper
accident prevention measures.
If you need to replace a part, use genuine Stoelting
parts with the correct part number or an equivalent
part. We strongly recommend that you do not use
replacement parts of inferior quality.
Safety Alert Symbol:
This symbol Indicates danger, warning or caution.
Attention is required in order to avoid serious personal injury. The message that follows the symbol
contains important information about safety.
Signal Word:
Signal words are distinctive words used throughout
this manual that alert the reader to the existence and
relative degree of a hazard.
WARNING
The signal word “WARNING” indicates a potentially
hazardous situation, which, if not avoided, may result
in death or serious injury and equipment/property
damage.
CAUTION
The signal word “CAUTION” indicates a potentially
hazardous situation, which, if not avoided, may result
in minor or moderate injury and equipment/property
damage.
CAUTION
The signal word “CAUTION” not preceded by the
safety alert symbol indicates a potentially hazardous
situation, which, if not avoided, may result in equipment/property damage.
NOTE (or NOTICE)
The signal word “NOTICE” indicates information or
procedures that relate directly or indirectly to the
safety of personnel or equipment/property.
TABLE OF CONTENTS
SECTION DESCRIPTION PAGE
1. INTRODUCTION
1.1 Remote Possibilities.......................................................................................... 1
1.2 Features ............................................................................................................ 1
1.3 Freezer Specifications....................................................................................... 2
2. INSTALLATION INSTRUCTIONS
2.1 Safety Precautions............................................................................................. 3
2.2 Shipment and Transit ......................................................................................... 3
2.3 Freezer Installation ............................................................................................. 3
2.4 Installing Permanent Wiring ................................................................................ 4
3. INITIAL SET-UP AND OPERATION
3.1 Operator's Safety Precautions............................................................................ 5
3.2 Operating Controls and Indicators ...................................................................... 5
3.3 Disassembly of Freezer Parts ............................................................................ 5
3.4 Cleaning the Freezer Parts ................................................................................ 6
3.5 Sanitize Freezer and Freezer Parts.................................................................... 6
3.6 Assembly of Freezer .......................................................................................... 6
3.7 Sanitizing ........................................................................................................... 7
3.8 Cleaning & Sanitizing of SO328 with Fill-o-matic II and Fill-o-matic III.................. 8
3.9 Initial Freeze Down and Operation ..................................................................... 8
3.10 Removing Product ............................................................................................. 8
3.11 SO328 Operation............................................................................................... 8
4. PREVENTATIVE MAINTENANCE
4.1 Routine Cleaning ............................................................................................... 11
4.2 Preventative Maintenance .................................................................................. 11
4.3 Extended Storage.............................................................................................. 11
4.4 Consistency Adjustment ..................................................................................... 1 1
5. REPLACEMENT PARTS INFORMATION
5.1 Ordering Parts ................................................................................................... 13
5.2 Reference Drawing ............................................................................................ 13
6. ACCESSORIES
6.1 Fill-o-matic II....................................................................................................... 15
6.2 Fill-o-matic III ...................................................................................................... 17
6.3 Fill-o-matic Connections .................................................................................... 19
LIST OF ILLUSTRATIONS
FIGURE TITLE PAGE
1 Model SO328 ................................................................................... 1
2 Freezer Specifications...................................................................... 2
3 Leveling Unit ..................................................................................... 3
4 Electrical Box.................................................................................... 4
5 Controls ............................................................................................ 5
6 Disassembling Freezer..................................................................... 6
7 Front Door and Auger Assembly ....................................................... 6
8 Rear Seal Assembly ......................................................................... 6
9 Consistency Adjustment....................................................................11
10 Fill-o-matic II .....................................................................................16
11 Fill-o-matic III.....................................................................................18
SECTION 1
INTRODUCTION
1.1 REMOTE POSSIBILITIES
The S toelting Optima delivers frozen drink profits by the pitcher. The Model SO328 is a high-volume producer of
ready-to-serve frozen cocktails or frozen neutral base for those special drink recipes. From an extra-small space,
the Optima’s compact design and high capacity output will give you extra-large profits.
1.2 FEATURES
High Capacity
- 15-18 gallons per hour per
cylinder output
- Thick, stackable slush for
post-mixing
- Or, ready-to-serve pre-mixed
products
High Efficiency Evaporator/Auger
- Stainless steel construction
- Long life auger blades
- Quiet, smooth operation
- 8 qt. freezing cylinder capacity
Figure 1. Model SO328
Consistency Control
- Adjustable for thick or thin
products
- Sensitive to product demand
- 24 volt control circuits
1
Dispensing Head Door
- ”No-Freeze” design prevents
blockages
- Fast dispense for quick fill of
pitchers
- Controlled dispense for drinks
by the glass
- Convenient pull-type handle
- Attractive, clear , see-thru
design
- Visible, moving product for
merchandising appeal
1.3 FREEZER SPECIFICATIONS
Figure 2. Freezer Specifications
Electrical Refrigeration Crated Dimensions Dimensions
208/230/60/1 HFC-404A environmentally- Width: 22" (55.9cm) Width: 17.6"(44.7cm)
20 amp circuit & plug friendly refrigerant Depth: 30" (76.2cm) Depth: 26.1"(66cm)
per side 2 HP (14,800 BTUH) high- Height: 66" (167.7cm) Height: 61.2"(155cm) w/casters
12 running amps efficiency compressor Weight: 400lbs.(182kg) Weight: 350lbs.(159kg)
1/2 HP Drive Motor Air or water cooled.
2
SECTION 2
INST ALLATION INSTRUCTIONS
2.1 SAFETY PRECAUTIONS
Do not attempt to operate the freezer until the safety
precautions and operating instructions in this manual are
read completely and are thoroughly understood.
Take notice of all warning labels on the freezer. The
labels have been put there to help maintain a safe
working environment. The labels have been designed to
withstand washing and cleaning. All labels must remain
legible for the life of the freezer. Labels should be
checked periodically to be sure they can be recognized
as warning labels.
If danger, warning or caution labels are needed, indicate
the part number, type of label, location of label, and
quantity required along with your address and mail to:
STOELTING, INC.
ATTENTION: Customer Service
502 Hwy. 67
Kiel, Wisconsin 53042
Figure 3. Leveling Unit
2.2 SHIPMENT AND TRANSIT
The freezer has been assembled, operated and inspected at the factory. Upon arrival at the final destination, the complete freezer must be checked for any
damage which may have occurred during transit.
With the method of packaging used, the freezer should
arrive in excellent condition. THE CARRIER IS RESPONSIBLE FOR ALL DAMAGE IN TRANSIT,
WHETHER VISIBLE OR CONCEALED. Do not pay the
freight bill until the freezer has been checked for damage. Have the carrier note any visible damage on the
freight bill. If concealed damage and/or shortage is found
later, advise the carrier within 10 days and request
inspection. The customer must place claim for damages
and/or shortages in shipment with the carrier. Stoelting,
Inc. cannot make any claims against the carrier.
2.3 FREEZER INSTALLATION
Installation of the freezer involves moving the freezer close
to its permanent location, removing all crating, setting in
place, assembling parts, and cleaning.
A. Uncrate the freezer.
B. The freezer must be placed in a solid level position. To
level adjust casters. Figure 3.
C. The freezer is equipped with an air cooled condenser
and requires correct ventilation; the front is the intake
and the back is the discharge. Both front and back
require 3" clearance for proper operation.
D. Place all switches in the OFF position.
E. Connect the two power cords. The plug is designed for
208/230 volt/20 amp duty. The unit must be connected
to a properly grounded receptacle. The electrical cord
furnished as part of the freezer has a three prong
grounding type plug. The use of an extension cord is
not recommended. If one must be used, use one with
a size 12 gauge or heavier with a ground wire. Do not
use an adaptor to get around grounding requirements.
CAUTION
DO NOT ALTER OR DEFORM PLUG IN ANY WAY!
F. Install the drip tray, cover and other miscellaneous
parts on the freezer.
3
2.4 INSTALLING PERMANENT WIRING
If permanent wiring is required by local codes, the following
procedure must be performed.
WARNING
DISCONNECT FREEZER FROM THE SOURCE
OF ELECTRICAL SUPPL Y BEFORE SERVICING.
A. Remove the right side and left panels and electrical box
covers to gain access to the power cord.
B. Remove the strain relief connector from the bottom of
the freezer base cut and remove the power cord.
C. Install permanent wiring according to local code.
D. Connect black wire to black wire. Connect the white
wire to white wire. Connect the green or yellow and
green striped ground wire to the grounding screw.
E. Replace all covers and panels.
Figure 4. Electrical Box
4
SECTION 3
INITIAL SETUP AND OPERATION
3.1 OPERATOR'S SAFETY PRECAUTIONS
SAFE OPERA TION IS NO ACCIDENT; Observe these
rules:
A. Know the freezer. Read and understand the
Operating Instructions.
B. Notice all warning labels on the freezer.
C. Wear proper clothing. Avoid loose fitting garments,
and remove watches, rings or jewelry which could
cause a serious accident.
D. Maintain a clean work area. Avoid accidents by
cleaning up the area and keeping it clean.
E. Stay alert at all times. Know which switch, push
button or control you are about to use and what
effect it is going to have.
F. Disconnect electrical cord for maintenance.
Never attempt to repair or perform maintenance on
the freezer until the main electrical power has been
disconnected.
When the switch is placed in the OFF position, nothing
will operate. When the switch in placed in the SERVE
position, the agitator and refrigeration system will run
until proper consistency is reached then stop.
C. Mix Low Light
The Mix Low light will illuminate when you are low on
mix.
CAUTION
DO NOT OPERA TE FREEZER WHEN THE LOW
MIX LIGHT IS ILLUMINATED OR DAMAGE TO
THE FREEZER COULD RESULT.
Clean Off Serve Switch
Pump Off On Switch
G. Do not operate under unsafe operating condi-
tions. Never operate the freezer if unusual or exces-
sive noise or vibration occurs.
3.2 OPERATING CONTROLS AND INDICATORS
Before operating the freezer, it is required that the
operator know the function of each operating control.
Refer to Figure 4 for the location of the operating
controls on the freezer.
A. Pump OFF/ON Switch
The pump OFF/ON Switch is a two position switch.
In the OFF position the pump will not run. In the ON
position the pump will run until the proper liquid level
is reached, then stop. If the hopper does not fill
completely , place the switch in the OFF position,
then back to ON to continue filling.
WARNING
THE CLEAN/OFF/SERVE SWITCH MUST BE PLACED
IN THE OFF POSITION WHEN DISASSEMBLING FOR
CLEANING OR SERVICING. THE FREEZER MUST BE
DISCONNECTED FROM ELECTRICAL SUPPLY BEFORE REMOVING ANY ACCESS P ANEL.
B. CLEAN/OFF/SERVE Switch
The CLEAN/OFF/SERVE switch is a three position
toggle and refrigeration switch used to control the
operation of the agitator. When the switch is placed
in the CLEAN position, the agitator will rotate.
Mix Low
Figure 5. Controls
3.3 DISASSEMBL Y OF FREEZER P ARTS
CAUTION
PLACE THE CLEAN/OFF/SERVE SWITCH IN THE
OFF POSITION BEFORE DISASSEMBLING FOR
CLEANING OR SERVICING.
Inspection for worn or broken parts should be made at
every disassembly of the freezer for cleaning or other
purposes. All worn or broken parts should be replaced
to ensure safety to both the operator and the customer
and to maintain good freezer performance and a quality
product. Frequency of cleaning must comply with the
local health regulations.
T o disassemble the freezer , refer to the following steps:
A. Remove hopper cover.
B. Remove the front door by turning off the knobs, and
then pull the front door off the studs.
5
SOFT RUBBER
SURFACE
Figure 8. Rear Seal Assembly
HARD CARBON
SURFACE
Figure 6. Disassembling Freezer
C. Remove the spigot body from the front door bypulling
the retaining pin out of the spigot handle. Push the
spigot body thru the bottom of the front door.
D. Remove the agitator assembly from the freezer. Pull
the agitator assembly out of the freezer barrel.
E. Keep the rear of the agitator assembly tipped up
once it is clear of the freezer barrel to avoid dropping
rear seal.
F. Remove the front agitator support bearing and the
two agitator blades.
G. Remove the rear seal assembly .
H. Wipe socket lubricant from the drive end (rear) of the
agitator with a cloth or paper towel.
I. Remove all “O” Rings.
W ARNING
DO NOT USE ANY TYPE OF SHARP OBJECT TO
REMOVE THE “O” RINGS.
3.4 CLEANING THE FREEZER PARTS
Place all loose parts in a pan or container and take to
the wash sink for cleaning. To clean freezer parts refer
to the following steps:
A. Place all parts in warm (120°F) mild detergent (Joy
or equivalent) water and clean with brushes provided.
Rinse all parts with clean hot (135°F) water.
CAUTION
DO NOT DAMAGE PARTS BY DROPPING OR
ROUGH HANDLING.
B. Wash the freezer barrel with warm (120°F) detergent
(Joy or equivalent) water and brushes provided.
C. The exterior should be kept clean at all times to
perserve the lustre of the stainless steel. A mild
alkaline cleaner is recommended. Use a soft cloth or
sponge to apply the cleaner.
D. Remove the drip tray insert and drain tray. Clean with
a detergent solution (Joy or equivalent). Rinse with
clean hot water.
3.5 SANITIZE FREEZER AND FREEZER P ARTS
A. Use a sanitizer mixed according to manufacturer’s
instructions to provide a 100 parts per million
strength solution. Mix sanitizer in quantities of no
less than 4 gallons (15 liters) of 120°F water. Allow
the sanitizer to contact the surfaces to be sanitized
for 5 minutes. Any sanitizer must be used only in
accordance with the manufacturer’s instructions.
Figure 7. Front Door and Auger Assembly
B. Place all parts in the sanitizing solution, then remove
and let air dry .
3.6 ASSEMBL Y OF FREEZER
T o assemble the freezer part s, refer to the following
steps:
NOTE
Petro-Gel sanitary lubricant or equivalent must be used
when lubrication of parts is specified.
6
NOTE
The United Sates Department of Agriculture and the
Food and Drug Administration require that lubricants
used on food processing equipment be certified for
this use. Use lubricants only in accordance with
the manufacturer’s instructions.
A. Assemble spigot “O” Rings onto parts dry , without
lubrication. Then apply a thin film of sanitary
lubrication to exposed surfaces of the “O” Rings.
B. Assemble the rear seal assembly onto the agitator.
Be sure the “O” Ring is in place before installing
the rear seal. Do not lubricate.
C. Lubricate the agitator drive (rear) with a small
amount of white socket lubricant. A small container
of socket lubricant is shipped with the freezer.
D. Install the two plastic agitator blades onto the
agitator. Install front agit ator bearing to the door.
E. Push the auger into the freezer barrel and rotate
slowly until the agitator engages the drive socket.
F. Install the spigot body with “O” Rings into the front
door from the bottom. Push straight up until the
spigot is in place. Place the spigot handle into the
spigot and insert the retainer pin.
G. Install door “O” Ring after lubricating.
H. Install the front door on the freezer.
WARNING
THE UNITED ST ATES DEPARTMENT OF AGRICUL TURE AND FOOD AND DRUG ADMINISTRATION REQUIRE THAT ALL CLEANING AND SANITIZING SOLUTIONS USED WITH FOOD PROCESSING EQUIPMENT BE CERTIFIED FOR THIS
USE. USE “STERA-SHEEN” OR EQUIVALENT.
When sanitizing the freezer, refer to local sanitary
regulations for applicable codes and recommended
sanitizing products and procedures. The frequency of
sanitizing must comply with local health regulations.
Mix sanitizer according to manufacturer’s instructions
to provide a 100 parts per million strength solution. Mix
sanitizer in quantities of no less than 4 gallons (15
liters) of 120°F water. Allow sanitizer to contact the
surfaces to be sanitized for 5 minutes. Any sanitizer
must be used only in accordance with the
manufacturer’s instructions.
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 as effective.
CAUTION
PROLONGED CONTACT OF SANITIZER WITH
FREEZER MA Y CAUSE CORROSION OF ST AINLESS STEEL P ARTS.
I. Install the knobs on the freezer studs.
CAUTION
FINGER TIGHTEN THE KNOBS EVENL Y . DO NOT
OVER-TIGHTEN KNOBS.
Look for the proper seal between the freezer barrel door,
“O” Ring, and front door.
J. Install hopper cover.
3.7 SANITIZING
Sanitizing must be done after the freezer is clean and
just before filling with mix. Sanitizing the night before
is not effective. However, you should always clean the
freezer and parts after using it.
In general, sanitizing may be conducted as follows:
A. Prepare 4 gallons (15 liters) of sanitizing solution
following manufacturers instructions, then pour into
hopper, brush hopper walls, and inside of hopper
cover.
If using an auto fill. Pour sanitizing solution into the
mix container, brush mix container , draw tube and
pick up hose. Pump sanitizer from mix containers
into the freezer hopper. Brush hopper walls, hopper
cover, hose adapter and ret aining clip.
B. Place the CLEAN/OFF/SERVE switch in the CLEAN
position. Check for leaks around the front door seal.
C. After five minutes, open spigot to drain sanitizing
solution. When solution has drained, place the
CLEAN/OFF/SERVE switch in the OFF position.
Allow the freezer barrel to drain completely .
7
3.8 CLEANING & SANITIZING OF S0328 WITH
FILL-O-MA TIC II AND FILL-O-MA TIC III
3.11 SO328 OPERATION INFORMATION FOR
SERVICE PERSONNEL
A. Empty freezer & mix container of product.
B. Mix 4 gallons of warm (120°F) detergent (Joy or
equivalent) water and pour into mix container, brush
mix container, pick up hose and draw tube. Pump
detergent water into freezer hopper.
C. Mix sanitizer according to manufacturers instructions
in quantities no less than 4 gallons. Pour sanitizer
into mix container. Brush mix container , hose and
draw tube to sanitize. Pump sanitizer into freezer
hopper, empty remaining sanitizer from mix cont ainer
and let air dry .
D. Drain detergent & sanitizer solution from the freezer.
E. Disassemble freezer according to Section 3, 3.3.
F. Clean freezer and parts according to Section 3, 3.4.
G. Sanitize freezer & parts according to Section 3, 3.5.
H. Assemble per Section 3, 3.6.
The SO328 is a cocktail/slush freezer . It is available in
208-230 volt, either air-cooled or water-cooled. The aircooled version has front-to-back airflow requiring three
inches of air space in the front and back for proper
refrigeration. This unit is not supplied with a pump,
however, S toelting does offer the Fill-O-Matic II (electric)
and Fill-O-Matic III (gas) pumps. This freezer is intended
for use with non-dairy products only and will produce
15-18 GPH.
1. Filling
T o fill the freezer , pour mix into hopper until full. To fill
freezers with the optional Fill-O-Matic pump, connect
the pump and turn the pump switch on, electric model
or turn the gas on, gas model. Then turn the pump
switch on, located on the freezer, this will open the
solenoid valve and the freezer will begin to fill. The
liquid level control circuit is designed with a fill timer.
This timer is designed to shut the compressor off if
the top level probe is not satisfied before the timer
expires. If the top level probe is not satisfied before the
timer times out, it locks the compressor out and
freezing will not occur, if this happens, turn the fill
switch off and then back on, this will reset the timer.
I. Sanitize per Section 3, 3.7.
3.9 INITIAL FREEZE DOWN AND OPERA TION
This section covers the recommended operating
procedures to be followed for the safe operation of the
freezer.
A. Sanitize just prior to use.
B. Place the CLEAN/OFF/SERVE switch in the OFF
position.
C. With the spigot open, pour one cup of mix into the
hopper. Allow approximately 8 oz. of sanitizing
solution and mix to drain out. Close the spigot and
fill the hopper with mix.
D. Place the CLEAN/OFF/SERVE switch in the
SERVE position. The product will be ready to serve
in about 15 minutes.
3.10 REMOVING PRODUCT
Before disassembly, all product must be removed.
A. Open spigot and completely drain freezer.
B. Prepare not less than 3 gallons of warm detergent
water and pour into hopper. (When using auto fill
pump thru auto fill).
C. Use a brush to clean the hopper then completely
drain freezer.
2. Operation
Once the freezer is full of mix, turn the clean-off-serve
switch to the “serve” position. The drive motor will start
immediately . The compressor utilizes a 10 second
delay-on-make / delay-on-break timer therefore, the
compressor will start 10 seconds later. The compressor
will continue to run until the drive motor torque switch is
satisfied, then after a 10 second delay stop. The drive
ÊÊ
Ê
motor runs continuously in the “serve” or “clean” switch
positions. There is no night mode or standby mode. If
product is left in the freezer overnight we recommend to
simply turn the freezer off. Do not run the freezer in
"clean” overnight. Freeze down time will typically be 610 minutes depending on the type of product used and
the starting product temperature.
3. Pump Operation
When the mix level in the hopper drops below the
bottom level probe, the solenoid valve opens and the
pump begins to fill until the top level probe is satisfied.
When satisfied, the solenoid valve closes, and pump
will continue to run until shut off pressure is reached.
The electric pump will run until the pressure reaches the
cut-out pressure of the pump. A gas pump will continue
to run until the pressure in the mix line equals the gas
pressure of the pump. If you wish to use the product in
the hopper prior to cleaning, turn the mix pump off and
turn the freezer pump switch off. This will disable the fill
timer and allow the compressor to continue to run. Be
cautioned that once the hopper is empty, the barrel
could freeze up. Only run the freezer until the hopper is
empty or damage may occur.
ÊÊ
8
4. Fill Timer Operation
The timer has ten dip switches, all switches placed in
the “on” position are added together to make up the
total time delay . This freezer leaves the factory with 64,
128 and 256 in the “on” position, this is a total of 448
seconds. The preset time should be enough to fill the
hopper up to the top level probe. Fill time may be dependent on what style pump is employed. The purpose of
the timer is to disable the compressor if the mix supply
runs out. When the timer expires, the mix low light will
illuminate. If the mix low light is illuminated, the compressor is locked out of the electrical circuit and will not
run. It may be necessary to change the timer settings
to more closely match the pumping capacity of your
pump.
9
10
SECTION 4
PREVENTIVE MAINTENANCE
4.1 ROUTINE CLEANING
T o remove spilled or dried mix from the freezer exterior ,
simply wash in the direction of the finish with warm
soapy water and wipe dry . Do not use highly abrasive
materials as they will mar the finish.
4.2PREVENT ATIVE MAINTENANCE
It is recommended that a maintenance schedule be
followed to keep the freezer clean and operating properly.
W ARNING
NEVER ATTEMPT TO REPAIR OR PERFORM
MAINTENANCE ON FREEZER UNTIL THE MAIN
ELECTRICAL POWER HAS BEEN DISCONNECTED.
A. Daily
1. The exterior should be kept clean at all times to
preserve the lustre of the stainless steel. A mild
alkaline cleaner is recommended. Use a soft cloth or
sponge to apply the cleaner.
2. Remove the drip tray and insert. Clean the drip
tray and insert and front of the freezer with a soap
solution.
B. Weekly
1. Check “O” Rings and rear seal for excessive wear
and replace if necessary.
2. Clean filter. T o remove lift up and pull bottom out and
down, then wash, dry and reinstall.
NOTE
If the condenser is not kept clean, loss of refrigeration efficiency will result, causing extended run time
or soft product consistency .
4.3 EXTENDED STORAGE
Refer to the following steps for storage of the freezer
over any long period of shutdown time:
A. Turn CLEAN/OFF/SERVE switch to the OFF
position.
B. Disconnect (unplug) from the electrical supply
source.
C. Clean thoroughly with a warm detergent all parts that
come in contact with the mix. Rinse in clear water
and dry all parts. Do not sanitize.
NOTE
Do not let the cleaning or sanitizing solution stand
in the hopper or in the freezer barrel during the shutdown period.
D. Remove, disassemble, and clean the front door, and
agitator parts. Place the agitator blades and the front
agitator support bearing in a plastic bag with a moist
paper towel to prevent them from becoming brittle.
4.4 CONSISTENCY ADJUSTMENT
The consistency adjustment knob is located behind the
back panel. Remove the lower back panel to access.
Turn clockwise for a thicker product and counterclockwise for a thinner product. Figure 9. Allow 15-30
minutes for the product to change consistency.
C. Monthly
CAUTION
THE FREEZER HAS AN AIR COOLED CONDENSER AND MUST HA VE PROPER AIR CIRCULA TION. FAILURE TO CLEAN THE CONDENSER
ON A REGULAR BASIS MAY RESULT IN SERIOUS FREEZER DAMAGE AND COULD VOID
FREEZER WARRANTY .
1. Visually inspect the condenser for dirt by shining a
light through the coil from the fan side of the condenser.
2. If the condenser is dirty, using compressed air or
CO2 tank, blow out the dirt from the fan side of the
condenser.
3. An alternative method of cleaning the condenser is to
use a condenser brush and vacuum.
WARNING
DO NOT OPERA TE FREEZER WITH BACK PANEL
REMOVED.
Figure 9. Consistency Adjustment
11
12
SECTION 5
REPLACEMENT PARTS INFORMATION
5.1 ORDERING P ARTS
T o assure receipt of the proper replacement parts, supply
your dealer or distributor with the following information:
A. MODEL NUMBER of equipment.
B. SERIAL NUMBER of model (stamped on nameplate).
C. P ART NUMBER, PART NAME, AND QUANTITY
NEEDED. Many part names and numbers are listed
on drawings included in this manual.
DECALS AND TAGS
PART NUMBER DESCRIPTION
324105 DECAL - CAUTION: ELECT. SHOCK
324107 DECAL - CAUTION MOVING P ARTS
324141 DECAL - CAUTION: ROT A TING BLADES
324798 DECAL - CLEAN-OFF-SERVE SWITCH
324208 DECAL - REFRIG. LEAK CHECK
324393 DECAL - ST OEL TING SWIRL LOGO
324509 DECAL - CLEANING
324566 DECAL - WIRED ACCORDING TO . . .
324686 DECAL - DANGER ST ARTS AUT OMA TICALL Y
324689 DECAL - REAR SEAL ASSEMBLY
324799 DECAL - PUMP ON/OFF
324801 DECAL - MIX LOW
NOTE
Minimum billing is $50.00.
D. WIRING DIAGRAMS reflect changes in effect with the
Serial Number which are also indicated by a suffix.
5.2 REFERENCE DRAWINGS
The following pages contain reference drawings and parts
lists that will aid the user when operating the freezer.
13
Item Stoelting P/N Qty . Description
1 1170882 1 Auger Bushing
2 4177009 1 Auger Weldment
3 667892 1 Seal, Shaft
4 3172965 1 Rear Seal Adapter
5 624857 1 Ring, O, 2-1/4 ID x 2-5/8 OD x 3/16 CS
6 162157 2 Blade, Scraper
7 508048 As Reqd Lubricant
8 2177118 1 Washer, Acetron 1.25 OD x .94 ID x .060"
9 336525-SV 1 Door , Front
10 625310 1 Ring, Quad 5.75 ID
11 1171908 1 Pin, Door
12 570196 1 Pin, 1/4 x 2-1/2 Cotterless
13 3177001 1 Spigot
14 624655 2 Ring, O, 1 x 1-1/4 x 1/8 70 Duro
15 2170877 1 Handle, Spigot
14
SECTION 6
ACCESSORIES
6.1 Fill-O-Matic II
The Fill-O-Matic II is a self contained auto-fill system designed to be used with the Model SO328
Freezer. The pump is built onto the cover of a 10 gallon mix vat. A draw tube extends to the bottom of
the container to supply the pump with mix, the mix then passes thru a screen, thru the pump and
discharges thru a hose to the freezer. The pump is controlled by a pressure switch. The pump starts
at 45 PSI and stops at 60 PSI.
Cleaning
1. Empty mix container completely.
2. Pour 2 gallons of quite warm detergent water into the mix container and pump thru the pump
and hoses.
NOTE
Do not allow the pump to run dry for more than a few minutes to prevent damage to the pumps
components.
3. Remove the strainer by turning counter clockwise, then thoroughly clean.
4. Apply a film of petro-gel to the male threads and "o" ring before reassembly. Do not over
tighten.
Sanitizing
1. Use a sanitizer mixed according to manufacturers instructions to provide a 100 parts per
million strength solution. Mix sanitizer in quantities of no less than 2 gallons (7.5 liters) of
120° water. Allow the sanitizer to contact the surfaces to be sanitized for 5 minutes. Any
sanitizer must be used only in accordance with the manufacturers instructions.
2. Pour the sanitizer into the mix container and pump thru the pump and hoses.
3. Make sure all the sanitizer has been pumped out and the container is completely empty,
then fill with mix and start the pump pushing out any sanitizer that may be remaining in the
hoses. The freezer barrel and hopper can now be filled.
15
On/Off
Switch
Ç
115 Volt
15 Amp Plug
È
Strainer
Å
Figure 10. Fill-o-matic II
16
6.2 Fill-O-Matic II
The Fill-O-Matic III is a gas powered auto-fill system designed to be used with Slush and Cocktail
Freezers. The pump is built to hang on the side of a 10 gallon mix vat. The pump can be driven by
either regulated CO2, nitrogen or filtered compressed air. A draw tube extends to the bottom of
the container to supply the pump with mix, the mix then passes thru the pump and discharges thru
a hose to the freezer. The pump is controlled by pressure in the mix line verses gas pressure to
the pump. Set the gas pressure to the pump between 20 to 40 PSIG.
Cleaning
1. Empty mix container completely.
2. Pour 2 gallons of quite warm detergent water into the mix container and pump thru the pump
and hoses.
NOTE
Do not allow the pump to run dry for more than a few minutes to prevent damage to the pumps
components.
Sanitizing
1. Use a sanitizer mixed according to manufacturers instructions to provide a 100 parts per
million strength solution. Mix sanitizer in quantities of no less than 2 gallons (7.5 liters) of
120° water. Allow the sanitizer to contact the surfaces to be sanitized for 5 minutes. Any
sanitizer must be used only in accordance with the manufacturers instructions.
2. Pour the sanitizer into the mix container and pump thru the pump and hoses.
3. Make sure all the sanitizer has been pumped out and the container is completely empty,
then fill with mix and start the pump pushing out any sanitizer that may be remaining in the
hoses. The freezer barrel and hopper can now be filled.
17
Mix Outlet
Ë
Gas Inlet
Ë
É
Mix
Inlet
Ë
Gas
Outlet
Figure 11. Fill-o-matic III
18
6.3 Fill-O-Matic Connections
Gas Powered
7
To Freezer
6
From
Auto Fill
=
Electric
19
Note: Tubing Sold Separately
WARRANTY
FROZEN UNCARBONATED BEVERAGE EQUIPMENT
1. Scope:
PW Stoelting, L.L.C. (“Stoelting”) warrants to the first user (the “Buyer”) that the evaporator assembly,
compressors, drive motors, and speed reducers of Stoelting frozen uncarbonated beverage
equipment will be free from defects in materials and workmanship under normal use and proper
maintenance appearing within five (5) years, and that all other components of such equipment
manufactured by Stoelting will be free from defects in material and workmanship under normal use
and proper maintenance appearing within twelve (12) months after the date that such equipment is
originally installed.
2. Disclaimer of Other Warranties:
THIS WARRANTY IS EXCLUSIVE; AND STOELTING, HEREBY DISCLAIMS ANY
IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR PARTICULAR
PURPOSE.
3. Remedies:
Stoelting’s sole obligations, and Buyer’s sole remedies, for any breach of this warranty shall be the
repair or (at Stoelting’s option) replacement of the affected component at Stoelting’s plant in Kiel,
Wisconsin, or (again, at Stoelting’s option) refund of the purchase price of the affected equipment,
and, during the first twelve (12) months of the warranty period, deinstallation/reinstallation of the
affected component from/into the equipment. Those obligations/remedies are subject to the
conditions that Buyer (a) signs and returns to Stoelting, upon installation, the Start-Up and Training
Checklist for the affected equipment, (b) gives Stoelting prompt written notice of any claimed breach
of warranty within the applicable warranty period, and (c) delivers the affected equipment to Stoelting
or its designated service location, in its original packaging/crating, also within that period. Buyer shall
bear the cost and risk of shipping to and from Stoelting’s plant or designated service location.
4. Exclusions and Limitations:
This warranty does not extend to parts, sometimes called “wear parts”, which are generally expected
to deteriorate and to require replacement as equipment is used, including as examples but not
intended to be limited to o-rings, hoses, seals, and drive belts. All such parts are sold
AS IS.
Further, Stoelting shall not be responsible to provide any remedy under this warranty with respect to
any component that fails by reason of negligence, abnormal use, misuse or abuse, use with parts or
equipment not manufactured or supplied by Stoelting, or damage in transit.
THE REMEDIES SET FORTH IN THIS WARRANTY SHALL BE THE SOLE LIABILITY
STOELTING AND THE EXCLUSIVE REMEDY OF BUYER WITH RESPECT TO
EQUIPMENT SUPPLIED BY STOELTING; AND IN NO EVENT SHALL STOELTING
BE LIABLE FOR ANY INCIDENTAL OR CONSEQUENTIAL DAMAGES, WHETHER
FOR BREACH OF WARRANTY OR OTHER CONTRACT BREACH, NEGLIGENCE OR
OTHER TORT, OR ON ANY STRICT LIABILITY THEORY.
SFWARR-105
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