Stoelting O231-I2F User manual

Model O231-I2F
OPERATORS MANUAL
Manual No. 513717 Rev.1

This manual provides basic information about the machine. Instructions and suggestions are
given covering its operation and care.
The illustrations and specifications 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 pro-
vide new parts for machines built prior to date of change.
DO NOTATTEMPT 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.
White Glove Service Network
Phone: [phone]
© 2018 Stoelting

Safety Alert Symbol:
This symbol Indicates danger, warning or caution.
Attention is required in order to avoid serious per-
sonal 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.
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.
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
specific safety information, the following safety defini-
tions are provided to assist the reader.
The purpose of safety symbols is to attract your at-
tention 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.
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” not preceded by the
safety alert symbol indicates a potentially hazardous
situation, which, if not avoided, may result in equip-
ment/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 Description and Specifications
1.1 Description..................................................................................................1
1.2 Specifications .............................................................................................1
2 Installation Instructions
2.1 Safety Precautions .....................................................................................3
2.2 Shipment and Transit..................................................................................3
2.3 Machine Installation....................................................................................3
2.4 IntelliTec2™ Setup......................................................................................4
3 Initial Set-Up and Operation
3.1 Operator’s Safety Precautions ...................................................................7
3.2 Operating Controls and Indicators..............................................................7
3.3 Emptying the Freezing Cylinder .................................................................8
3.4 Disassembly of Machine Parts...................................................................8
3.5 Cleaning Disassembled Parts ....................................................................9
3.6 Cleaning the Machine.................................................................................9
3.7 Assembling Machine ..................................................................................10
3.8 Sanitizing....................................................................................................10
3.9 Freeze Down and Operation ......................................................................11
3.10 Mix Information...........................................................................................12
4 Maintenance and Adjustments
4.1 Drive Belt Tension Adjustment....................................................................13
4.2 Condenser Cleaning...................................................................................13
4.3 Preventative Maintenance..........................................................................13
4.4 Extended Storage.......................................................................................14
5 Troubleshooting
5.1 Error Codes................................................................................................15
5.2 Troubleshooting - Error Codes ...................................................................15
5.3 Troubleshooting - Machine.........................................................................17
6 Replacement Parts
6.1 Decals and Lubrication...............................................................................19
6.2 Auger Shaft and Faceplate Parts ...............................................................20

Operators Manual #513717 1 O231-I2F Model Machines
SECTION 1
INTRODUCTION
1.1 DESCRIPTION
The Stoelting O231-I2F floor machine is gravity fed. The
machine is equipped with the IntelliTec2 control which
provides a uniform product. The O231-I2F is designed to
operate with almost any type of commercial soft serve or
non-dairy mixes available, including: ice milk, ice cream,
yogurt, and frozen dietary desserts.
This manual is designed to assist qualified service per-
sonnel and operators in the installation, operation and
maintenance of the Stoelting O231-I2F gravity machine.
Figure 1-2 Specification
1.2 SPECIFICATIONS
Figure 1-1 Model O231-I2F

Operators Manual #513717 2 O231-I2F Model Machines
1.2 SPECIFICATIONS
O231-I2F Water Cooled O231-I2F Air Cooled
Dimensions Machine with crate Machine with crate
width 26’’ (66,0 cm) 40-1/4’’ (102,2 cm) 26’’ (66,0 cm) 40-1/4’’ (102,2 cm)
height 62-1/2’’ (158,8 cm) 64-1/2’’ (163,8 cm) 62-1/2’’ (158,8 cm) 64-1/2’’ (163,8 cm)
depth 31-1/2’’ (80,0 cm) 33-1/4’’ (84,5 cm) 31-1/2’’ (80,0 cm) 33-1/4’’ (84,5 cm)
Weight 640 lbs (290,2 kg) 730 lbs (331,1 kg) 640 lbs (290,2 kg) 730 lbs (331,1 kg)
Electrical 1 PH 3 PH 1 PH 3 PH
circuit ampacity
(per barrel) 26A minimum 19A minimum 27A minimum 20A minimum
overcurrent protection
device (per barrel) 40A maximum 30A maximum 40A maximum 30A maximum
Compressor Freezing Cylinders - Two 12,000 Btu/hr (R-404A)
Storage - 1,300 Btu/hr Compressor (R-134a)
Drive Motor Two - 2 hp
Cooling
Water cooled units require 1/2”
N.P.T. water and drain fittings with
2 inlets and 2 outlets or 1/2” N.P.T.
water and drain fittings with 1 inlet
and 1 outlet.
Maximum water pressure of 130 psi.
Minimum water flow rate of 3 GPM.
Ideal EWT of 50°-70°F
Air cooled units require 3” (7,6 cm)
air space at back and sides.
Hopper Volume Two - 6.5 gallon (24,7 liters)
Freezing Cylinder
Volume Two - 1 gallon (3,79 liters)

Operators Manual #513717 3 O231-I2F Model Machines
SECTION 2
INSTALLATION INSTRUCTIONS
2.1 SAFETY PRECAUTIONS
Do not attempt to operate the machine until the safety
precautionsandoperatinginstructionsinthismanualare
read completely and are thoroughly understood.
Take notice of all warning labels on the machine. The la-
bels have been put there to help maintain a safe working
environment.Thelabelshavebeendesignedtowithstand
washing and cleaning. All labels must remain legible for
thelifeofthemachine.Labelsshouldbecheckedperiodi-
callytobesuretheycanberecognizedaswarninglabels.
If danger, warning or caution labels are needed, indicate
thepartnumber,typeoflabel,locationoflabel,andquantity
required along with your address and mail to:
STOELTING
ATTENTION: Customer Service
502 Hwy. 67
Kiel, Wisconsin 53042
2.2 SHIPMENT AND TRANSIT
Themachinehasbeenassembled,operatedandinspected
at the factory. Upon arrival at the final destination, the
entire machine must be checked for any damage which
may have occurred during transit.
With the method of packaging used, the machine should
arriveinexcellentcondition.THECARRIERISRESPON-
SIBLE FOR ALL DAMAGE IN TRANSIT, WHETHER
VISIBLE OR CONCEALED. Do not pay the freight bill
until the machine has been checked for damage. Have
the carrier note any visible damage on the freight bill. If
concealeddamageand/or shortage isfoundlater, advise
the carrier within 10 days and request inspection. The
customermustplaceclaimfordamagesand/orshortages
in shipment with the carrier. Stoelting, Inc. cannot make
any claims against the carrier.
2.3 MACHINE INSTALLATION
WARNING
Installation must be completed by a qualified
electrician/refrigeration specialist.
Incorrect installation may cause personal injury,
severe damage to the machine and will void fac-
tory warranty.
Installation of the machine involves moving the machine
close to its permanent location, removing all crating, set-
ting in place, assembling parts, and cleaning.
TOOLS NEEDED
• Level
• Screwdrivers, wrenches, channel locks
• Straight edge
• Thermometer
PRIOR TO INSTALLATION
A. On the startup form, complete the following:
1. Buyer Information
2. Distributor Information
3. Authorized Service Provider Information
4. Verify with Store Operator Checklist
5. Freezer Configuration Information
B. Prepare a USB flash drive with your service
contact information:
1. Locate a copy of the service contact file (info.
txt)
2. Modify the info.txt file with information from
your service company using the instructions
in the file.
3. Save the service contact file to the root level
of the USB flash drive (do not put the file into
any folder).
INSTALLATION
A. Uncrate the machine and install the casters.
Screw the casters into the threaded holes and
tighten them using a pair of channel locks. Set
the machine in place.
B. Accuratelevelingisnecessaryforcorrectdrainage
of the freezing cylinder and to ensure correct
overrun. Place a level on top of the machine
at each corner to check for level condition. If
adjustment is necessary, level the machine by
turning the bottom part of each caster in or out
then tighten the lock nut.

Operators Manual #513717 4 O231-I2F Model Machines
C. In air cooled machines correct ventilation is
required. The left side of the machine is the air
intakeandrightandbacksidesarethedischarge.
All sides must have 3” minimum clearance.
CAUTION
Failure to provide adequate ventilation will void
warranty.
In water cooled machines, make sure to use
1/2” supply and discharge lines. Follow all local
and state codes for connecting the supply and
discharge lines. Turn on the water supply and
check all connections for leaks.
D. Open the rear panel and check the belt tension
withaBurroughsBeltTensionGauge.Thetension
should be 50-55 lbs. Adjust as necessary and
check the pulley alignment with a straightedge.
NOTE
Belt life is increased if the new drive belts are tight-
ened after two or three weeks of operation.
E. Connect the power cord to the proper power
supply. Refer to the nameplate on your machine
for proper supply. The unit must be connected to
a properly grounded receptacle. The use of an
extensioncordisnotrecommended.Donotusean
adaptertocircumventthegroundingrequirement.
WARNING
Do not alter or deform electrical plug in any way.
Alteringtheplugtofitintoanoutlet of differentcon-
figuration may cause fire, risk of electrical shock,
product damage and will void warranty.
F. On the startup form, complete the following:
1. Technical Equipment Inspection, Check-Out,
Startup and Training Checklist (excluding
IntelliTec2™ checks)
2. Refrigeration Cooling Checks
2.4 INTELLITEC2™ SETUP
EveryStoeltingsoftservemachineneedstobesetonsite.
The following procedures provide optimal product con-
sistency while prolonging product life.
NOTE
The machine is designed for correct operation in
ambient temperatures between 50°F and 110°F.
Temperaturesoutof thatrangemaycauserefrigera-
tion problems and product quality issues.
A. Disassemble, clean, lubricate, assemble, and
sanitizethemachinefollowingthestepsinSection
3. Train store personnel at this time.
B. On the startup form, complete the following:
1. Owner/OperatorManualReview&Equipment
Training
2. Startup Operation/Technical Issues
3. Trainee Information
4. Startup Survey
5. Equipment Startup & Training Check Out &
Acceptance
ADDING MIX
A. Sanitize the machine immediately before use.
B. Fill the hopper with at least 2.5 gallons of mix.
C. Place a container under the spigot and open the
spigottoallowthemixtoflushoutabout8ounces
(0.23 liters) of sanitizing solution and liquid mix.
Close the spigot.
MOTOR CALIBRATION
A. Pressthe On/OffLeftorOn/OffRightbutton.The
Motor Calibration screen will be displayed.
B. Move the cursor over the Left side and press the
SEL button then move the cursor over the Right
side and press the SEL button.
NOTE
The motor calibration can be done for both sides
simultaneously.
C. After the calibration is complete, press the left
arrow button.
SETTING CONTACT INFORMATION (OPTIONAL)
A. Plug your USB flash drive into the control if it is
not already plugged in.
B. From the Current Status screen, press the left
arrow button to access the passcode selection
screen. Press the right arrow, SET, and then the
SEL button.
Figure 2-1