This manual provides basic information about the freezer. 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 freezer without notice, and without incurrring any obligation to modify or provide new parts for freezers built prior to date of change.
DO NOT ATTEMPT to operate the freezer 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 freezer, contact the company
at the following location:
Read and understand the entire manual before
operating or maintaining Stoelting equipment.
This Owner's 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.
T o highlight specific safety information, the following
safety definitions 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 S toelting
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.
NOTICE
The signal word “NOTICE” indicates information or
procedures that relate directly or indirectly to the
safety or personnel or equipment/property .
31S pigot, Front Door and Auger Assembly ............................................................26
SECTION 1
SPECIFICATIONS
1.1 DESCRIPTION
The Stoelting Futura F144 and F131 w/ Blender countertop
combination shake/softserve freezers are gravity fed. The
freezers are equipped with fully automatic controls to
provide uniform product. The freezer is designed to
operate with almost any type of commercial soft serve and
shake mixes available, including ice milk, ice cream,
yogurt, and frozen dietary desserts.
The F144 series freezers allow the operator to dispense
outstanding soft serve from the left pigot, and thick creamy
shakes from the right spigot, with the convenience and cost
of one unit. The freezer is designed to be used with both
barrels in operation. If you desire to use one barrel only,
the freezer must be cleaned, sanitized and filled with fresh
mix daily. The F131 freezer includes a blender for mixing
fruit and berries into the dairy product for making smoothies.
For more information call your authorized Stoelting
Serviceperson.
This manual is designed to assist qualified service personnel and operators in the installation, operation and maintenance of the Stoelting Model Futura 144 gravity freezer.
Figure 1. Model Futura 144/F131 Freezer
(F131 w/ blender shown mounted on
the optional floor stand.)
Figure 2. Specifications
1
1.2 SPECIFICATIONS
MODEL FUTURA 144
COUNTERTOP COMBINATION SHAKE/SOFTSERVE
GRAVITY FREEZER
Dimensions:
Freezer: 22" (56 cm) wide x 28" (72 cm) deep x 34.75" (88 cm) high
Crated: 28" (71 cm) wide x 35 1/2" (89.4 cm) deep x 40.3" (102.4 cm) high
Weight:
Freezer: 385 lbs. (174.6 kg)Crated: 470 lbs. (213.2 kg)
Electrical:
Approximately 11 total running Amps, 20 Amp. maximum fuse or circuit breakers. NEMA 6-20P power cord provided.
Automatic safeguard circuit built into electronic control - protects major freezer components under normal operating
conditions.
Refrigerant:
R404a
Compressor:
12,000 B.T.U.H./hr.
Drive Motor:
(2) 3/4 H.P.
Cooling
Air cooled requires minimum 3" air clearance on right and left hand side and rear. Minimum 10" top clearance
Freezing Cylinder Volume
Two cylinders, .85 gallon, 3.4 Quarts (3,22 liters)
Hopper
2 each, 3 Gallons (11.35 liters) each refrigerated and insulated.
2
SECTION 2
INSTALLATION 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.
T ake notice of all warning labels on the freezer (Fig. 3).
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:
STOEL TING, INC.
ATTENTION: Customer Service
502 HWY 67
Kiel, Wisconsin 53042-1600
Fig. 3. Warning Label Locations
3
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.
CAUTION
Failure to provide adequate ventalation will void
Warranty.
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 damaged 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 INST ALLATION
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. Accurate leveling is necessary for correct drainage
of freezer barrel and to insure correct overrun. Place
a spirit level on top of the freezer at each corner to
check for level condition. If adjustment is necessary ,
level the freezer by turning the bottom part of each
leg in or out. Then separate freezer base gasket and
install with the seam to the back and the flat to the
bottom.
C. Air cooled freezers require correct ventilation. The
right side of the freezer is the air intake and must
have a 3" (7.5cm) clearance. Air discharges out of the
left side of the unit and must have 3" (7.5cm) clearance. Do not obstruct the intake or discharge
(Fig. 4).
D. Place the OFF-ON switch in the OFF position. See
Figure 8.
E. Install the drip trays, drain trays, covers and other
miscellaneous parts on the freezer. (Fig. 5)
Figure 5. Installing Trays and Inserts
(F131 w/ blender shown)
F. Connect the power cord. The plug is designed for
208 or 230 volt/20 amp duty . Check the nameplate
on your freezer for proper supply . 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 (Fig. 6). The use of
an extension cord is not recommended. If one must
be used, use one with a wire size 12 gauge or heavier
with a ground wire. Do not use an adaptor to get
around grounding requirement.
WARNING
Fig. 4. Space and Ventilation Requirements
Do not alter or deform electrical plug in any way.
Altering the plug to fit into an outlet of different
configuration may cause fire, risk of electrical
shock, product damage and will void the warranty.
Figure 6. Power Cord
4
2.4 FLOOR ST AND INST ALLA TION
T o install the F144 on the floor stand, follow the step s
outlined below.
2.5 INST ALLING PERMANENT WIRING
WARNING
1. Uncrate the floor stand and place in an upright posi
tion.
NOTE
Detailed instructions are included with each floor stand.
2. Place a spirit level across the top of the stand to
check for level condition, side to side and front to
back. If adjustment is necessary , level the stand by
turning the bottom part of each caster in or out, then
tighten the lock nut, and lock caster .
3. Remove the four legs from the freezer and replace
with the four leg adapters provided. Adapters must be
fully tightened to the freezer .
4. Place the F144 freezer on the floor stand with the
front of the freezer to the door end of the stand.
Secure the freezer to the stand with the nuts and lock
washers provided. Then separate freezer base gasket
and install the seam to the back and the flat to the
bottom (Fig. 7).
High voltage will shock, burn or cause death. Turn
off and lock out main power disconnect before
proceeding with installation. Do not operate
machine with cabinet panels removed.
Electrical materials, arrangement and grounding must
conform with national and local electrical codes. If permanent wiring is required by local codes, the following
procedure must be performed:
A. Remove the back panel.
B. Disconnect the wires from the terminal block. Discon-
nect the green ground wire from the grounding stud.
Fig. 7. Floor Stand
Figure 8. Power Cord Connection
C. Remove the power cord.
D. Install permanent wiring according to local code.
E. Replace the back panel.
5
6
SECTION 3
INITIAL SET-UP AND OPERATION
3.1 OPERA TOR'S SAFETY PRECAUTIONS
SAFE OPERATION IS NOT AN 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. A void 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.
G. Do not operate under unsafe operating condi
tions. Never operate the freezer if unusual or exces
sive noise or vibration occurs.
3.2 OPERA TION CONTROLS AND INDICA T ORS
Before operating the freezer, it is required that the
operator know the function of each operating control.
Refer to Figure 9 for the location of the operating
controls on the freezer.
A. SPIGOT SWITCH
The SPIGOT switch will automatically actuate the
auger drive and refrigeration systems when the
spigot is opened to dispense product. When the
spigot is closed, the drive motor and compressor will
remain "on" until the product in the barrel reaches
the proper consistency.
Dispense Rate Adjuster
Push To Freeze Switch
Off-On Switch
Hold Ready
Switch
Off-On Switch
Green Light
Clean Switch
Mix Low Light
Figure 9. Controls
7
WARNING
High voltage will shock, burn or cause death. The
OFF-ON switch must be placed in the OFF position
prior to disassembling for cleaning or servicing. Do
not operate machine with cabinet panels removed.
B. OFF-ON SWITCH
The OFF-ON switch is a two position toggle switch
used to supply power to the control circuit. When the
switch is in the OFF position, nothing will turn. When
the switch is in the ON position, the freezer can be
run in the freezing mode or cleaning mode. The
freezer will be in the idle mode until a switch is
activated.
C. PUSH TO FREEZE SWITCH
The PUSH TO FREEZE switch is a "snap" switch
used to start the freezing cycle. During initial freeze
down, the OFF-ON switch is placed in the ON
position. Then the PUSH TO FREEZE switch is
pressed until the drive motor and compressor come
"ON".
NOTE
After the auger drive motor starts, there is a 3
second delay before the compressor starts.
During the normal operation, the red PUSH TO FREEZE
switch light will illuminate after the freezer has been idle
for the preset cycles. Before drawing product, press the
red PUSH TO FREEZE switch if it is illuminated. Wait
until the green light is illuminated before dispensing.
NOTE
If the freezer shuts off and the PUSH TO
FREEZE light flashes, you have an error
condition. Turn the OFF-ON switch to the OFF
position, correct the problem and turn the
freezer back on. (See Troubleshooting.)
E. CLEAN SWITCH
The CLEAN switch is a "snap" switch. When the switch
is pushed the refrigeration system will be OFF and the
auger will rotate for cleaning. When the switch is
pushed again, the auger will stop and the CLEAN light
will flash indicating the freezer is in the CLEAN mode.
To exit the CLEAN mode turn the OFF-ON switch to
the OFF position. If the freezer is left in CLEAN for
more than 30 minutes or is pushed three times in ten
seconds, it will go in error.
F . DRIVE MOTOR OVERLOAD
The internal drive motor overload will trip if the drive
motor is overloaded. It will reset after approximately
10-12 minutes. If the drive motor continues to trip,
refer to Section 4-Troubleshooting.
G. RED MIX LOW LENS
The red MIX LOW light is designed to alert the
operator to a low mix condition. The lens will illuminate with approximately one gallon of mix in the
hopper . When the MIX LOW lens is lit, refill hopper
immediately.
NOTE
Failure to immediately refill hopper may result in operational problems.
H. HOLD READY SWITCH
The HOLD READY switch is a push button switch.
When pushed in and held for 5 seconds, the hold ready
mode will be activated. The product will remain ready
to serve and the freezer will not go to idle. To return to
normal operation push and hold for 5 seconds.
I. HIGH PRESSURE CUTOUT
The HIGH PRESSURE CUTOUT switch is a safety
switch designed to protect the compressor from damage due to excessive head pressure. When tripped,
the lever will be out, push in to reset.
J. DISPENSE RATE ADJUSTER
The DISPENSE RATE ADJUSTER limits the opening
of the spigot.
D. GREEN LIGHT
The green light is used to indicate that the product
has reached the proper consistency and is ready to
be dispensed. The light begins to flash at 98% of
consistency.
NOTE
If the PUSH TO FREEZE red light is illuminated,
push the PUSH TO FREEZE switch and wait
until the green light illuminates before dispensing.
To adjust product dispense rate, turn the adjusting
knobclockwise for slower flow and counterclockwise
for faster flow.
K. DOOR INTERLOCK SWITCH
When the door is securely fastened, the freezer will
operate normally . When the door is removed, the
drive and compressor will not run.
8
L. BLENDER POWER SWITCH (F131 Models Only)
The blender power switch is a two position toggle
switch used to supply power to the blender. When the
switch is in the OFF position, the agitator will not turn.
When the switch is in the ON position, the agitator
will be activated every time the blender activation
switch is pressed.
M. BLENDER ACTIVA TION SWITCH
(F131 Models Only)
The blender activation switch is a two speed, momen
tary contact switch that will actuate the agitator to
blend product when pressed in and held in either the
HIGH or LOW speed position. The HIGH speed
position is used to blend fruit into dairy mix when
making smoothies. The LOW speed position is used
during cleaning procedures.
3.3 SANITIZING
Sanitizing must be done after the freezer is clean and
just before the hopper is filled with mix. Sanitizing thenight before is not effective. However, you should
always clean the freezer and parts after using it.
Figure 10. Mix Inlet Regulator
B. Prepare 2 gallons (7.5 liters) of sanitizing solution
following manufacturer’s instructions. Pour into
hopper with mix inlet regulator in place (Fig. 1 1).
THE UNITED STATES DEPARTMENT OF AGRICULTURE AND THE FOOD AND DRUG ADMINISTRATION
REQUIRE THAT ALL CLEANING AND SANITIZING SOLUTIONS USED WITH FOOD PROCESSING EQUIPMENT BE CERTIFIED FOR THIS USE.
When sanitizing the freezer, refer to local sanit ary
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 2 gallons (7.5
liters) of 120°F of 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.
CAUTION
Do not allow sanitizer to remain in contact with
stainless steel freezer parts for prolonged
periods. Prolonged contact of sanitizer with freezer
may cause corrosion of stainless steel parts.
Figure 11. Sanitizing Procedure
C. Place the OFF-ON toggle switch in the ON position
while pressing the CLEAN switch. Check for leaks.
(Fig. 12)
In general, sanitizing may be conducted as follows:
A. Push the mix inlet regulator into hopper with air inlet
(long) tube toward the front of the freezer.
(Fig. 10).
Figure 12. Clean Control
9
D. Clean sides of hopper, mix inlet regulator and under-
side of hopper cover using a sanitized soft bristle
brush dipped in the sanitizing solution (Fig. 13).
Figure 13. Sanitizing Hopper
Figure 15. Sanitizing Agitator Shaft
E. After five minutes, place a bucket under the spigot
and open spigot to drain sanitizing solution. When
solution has drained, press the CLEAN snap switch
to stop the auger. Allow the freezer barrel to drain
completely (Fig. 14).
Figure 14. Spigot Opened and Solution Draining
F . Fill a tall cup with sanitizing solution. Completely
immerse the blender's agitator shaft in the sanitizer
solution. Do not wipe dry (Fig. 15).
3.4 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 OFF-ON switch in the OFF position.
C. With spigots open, pour approximately 1 gallon (3.8
liters) of mix into the hopper. Allow the mix to flush
out about 8 ounces (0.23 liters) of sanitizing solution
and liquid mix. Close the spigot.
D. Fill hopper with approximately 3 gallons (11.4 liters)
of prechilled (40°F or 4°C) mix.
NOTE
Do not overfill the hopper. Mix level must not be higher
than 2 inches (5 cm) from the top of the air inlet tube on
the mix inlet regulator.
E. The freezer barrel will automatically fill until it is
about 1/2 full. If freezer barrel does not fill, check for
obstruction in the mix inlet regulator. If freezer barrel
fills over 1/2 full, indicated by low overrun, check for
leaks at the mix inlet regulator O-ring or check if
the mix inlet regulator was installed correctly or that
the freezer is level.
F . Place the OFF-ON switch in the ON position, then
press the PUSH TO FREEZE swtich until the freezer
starts.
NOTE
After the auger drive motor starts, there is a 3
second delay before the compressor starts.
10
G. After about 6 to 10 minutes the freezer will shut off
and the green lens will illuminate. The product will be
ready to serve. Freeze down time may be longer for
some frozen diet dessert mixes. High ambient
temperatures may extend freeze down time.
H. For normal dispensing, move the spigot handle fully
open (Fig. 16).
Figure 16. Dispensing Product
3.5 MIX INFORMATION
Mix can vary considerably from one manufacturer to
another. Differences in the amount of butterfat content
and quantity and quality of other ingredients have a
direct bearing on the finished frozen product. A change
in freezer performance that cannot be explained by a
technical problem may be related to the mix.
When changing from one type of mix to another such as
yogurt to Vitari, you may have to change the mix inlet
regulator and/or control settings. Please call your
distributor for further information.
Proper product serving temperature varies from one
manufacturer’s mix to another. Mixes should provide a
satisfactory product in the 18° to 20°F (-7° to -6°C)
range.
When checking the temperature, stir the thermometer in
the frozen product to read the true temperature.
Mix does not improve with age. Old mix, or mix that has
been stored at too high a temperature, can result in a
finished product that is less than satisfactory in taste
and appearance. To retard bacteria growth in dairy
based mixes, the best storage temperature range is
between 36° to 40°F (2.2° to 4.4°C).
I. The freezer is designed to dispense the product at a
reasonable draw rate. If the freezer is overdrawn, the
result is a soft product or a product that will not
dispense at all. If this should occur, allow the freezer
to run for approximately 30 seconds before dispens-
ing additional product. After a while the operator will
sense or feel when the freezer is beginning to fall
behind, and will slow down on the rate of draw so as
not to exceed the capacity.
J. Do not operate the freezer when the MIX LOW light
ison or with less than 1-3/4" (4.4 cm) of mix in the
hopper. Refill the hopper immediately .
NOTE
The freezer has a standby mode sometimes
referred to as a sleep or energy conservation
mode. When the freezer is not used, after a
preset time, it will enter the standby mode and
remain there until someone draws a product or
pushes the push-to-freeze switch. In the
standby mode, the freezer will keep the product
below 45°F . S tandby modes are not to be used
in place of cleaning and sanitizing. Frequency
of cleaning and sanitizing is determined by
Federal, State, and local regulatory agencies.
Some products tend to foam more than others. If excess
foam should occur, skim the foam of f with a sanitized
utensil and discard. Periodically , stir the mix in the
hopper with a sanitized utensil.
3.6 REMOVING MIX FROM THE FREEZER
T o remove the mix from the freezer , refer to the following
steps:
A. Remove the mix inlet regulator from the hopper by
pulling straight up (Fig.17).
11
Figure 17. Removing Mix Inlet Regulator
B. Place the OFF-ON rocker switch in the ON position
and push the CLEAN switch to rotate the auger.
Allow the mix to agitate in the freezer barrel until the
mix has become a liquid, about 5 minutes.
C. Drain the liquid mix by opening the spigot. A bucket
or container should be placed under the spigot to
catch the liquid mix (Fig. 18).
CAUTION
Hazardous Moving Parts
Revolving blender agitator shaft can grab and cause
injury. Remove watches and jewelry prior to
operating blender. Keep hands and clothing away
from revolving agitator. The Power switch must be
placed in the OFF position for cleaning and when
not in use.
E. Fill a tall cup with clean 110°F (43°C) water. Press
the low speed on the blender activation switch and
allow agitator to run for 10 to 15 seconds (See
Figure 19).
Figure 18. Draining Mix
3.7 CLEANING THE FREEZER
NOTE
The frequency of cleaning the freezer and
freezer parts must comply with state and local
health regulations.
After the mix has been removed from the freezer , the
freezer must be cleaned. To clean the freezer, refer to
the following steps:
A. Close the spigot and fill the hopper with 2 gallons
(7.5 liters) of cold tap water .
B. Place the OFF-ON switch in the ON position while
pushing the CLEAN switch to rotate the auger .
C. Allow the water to agitate for approximately five
minutes.
NOTE
If freezer is left in CLEAN for more than 30
minutes, it will go to error. Refer to Section 4 for
instructions on clearing the error.
D. Open the spigot to drain the water. Remember to
place a bucket or container under the spigot to catch
the water. When the water has drained, turn the
OFF-ON switch to the OFF position. Allow the freezer
barrel to drain completely.
Figure 19. Cleaning Agitator Shaft
F . Repeat steps A through E using a mild detergent
solution.
3.8 DISASSEMBL Y OF FREEZER P ARTS
CAUTION
Hazardous Moving Parts
Revolving auger shaft can grab and cause injury.
Place the POWER OFF-ON 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 part s should be replaced to
ensure safety to both the operator and the customer and
to maintain good freezer performance and a quality
product. Two normal wear areas are the auger flight s
and front auger support bushing (Fig. 20). Frequency of
cleaning must comply with the state and local health
regulations.
12
Figure 20. Auger Flight Wear and Front Auger
Support Bushing Wear
D. Place the OFF-ON switch in the OFF position.
T o disassemble the freezer , refer to the following steps:
A. Remove the mix inlet regulator from the hopper by
pulling straight up.
B. Remove the front door by turning off the circular
knobs and then pulling the front door off the studs
(Fig. 21).
Figure 22. Front Door Disassembly
D. Remove the clear acrylic splash gaurd from the
blender.
E. Remove the blender's agitator from the agitator shaft.
Grasp the agitator shaft in one hand, and turn the
agitator in a clockwise direction with the other hand
(Fig. 23).
Figure 21. Removing Front Door
C. Remove the rosette caps from the front door. Push
the spigot body through the bottom of the front door
and remove. (Fig. 22).
Figure 23. Removing Agitator From Shaft
D. Remove the front auger supports and bushings
(Fig. 24).
Figure 24. Removing Auger Supports
13
G. Remove the auger assemblies from the freezer. Pull
the augers out of the freezer barrel slowly. As the
augers are being pulled out, carefully remove each of
the plastic flights with springs.
NOTE
Clean the auger drive socket located inside the
barrel at the rear seal area. Use clean cloth or
paper towel for this purpose.
H. Keep the rear of the auger shafts tipped up once they
are clear of the freezer barrels to avoid dropping rear
seals.
I. Wipe socket lubricant from the drive end (rear) of the
auger with a cloth or paper towel.
J. Remove the rear seals.
K. Remove all O-rings from parts by first wiping off the
lubricant using a clean paper towel. Then squeeze the
O-ring upward with a dry cloth (Fig. 25). When a loop
is formed, roll out of the O-ring groove.
D. Clean the drip trays and insert with a soap solution.
Rinse with clean hot water.
3.10 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 2 gallons (7.5 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.
B. Place all parts in the sanitizing solution, then remove
and let air dry.
C. Using this sanitizing solution and the large barrel
brush provided, sanitize the rear of the barrel and
drive area by dipping the brush in the sanitizing
solution and brushing the rear of the barrel.
3.11 ASSEMBL Y OF FREEZER
T o assemble the freezer p arts, refer to the following
steps:
NOTE
Petrol-Gel sanitary lubricant or equivalent must
be used when lubrication of parts is specified.
Figure 25. Removing O-ring
CAUTION
Do not use any type of sharp object to remove Orings. Using tools to remove O-rings may damage
spigot and O-rings.
3.9 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 mild detergent water and
clean with brushes provided. Rinse all parts with
clean hot water .
B. W ash the hopper and freezer barrel with warm
detergent water and brushes provided.
C. Clean the rear seal surfaces from the inside of the
freezer barrel with warm detergent water .
NOTE
The United States Department of Agriculture and
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 all o-rings onto parts dry, without lubrica-
tion. Then apply a thin film of sanitary lubrication to
exposed surfaces of the O-rings. Apply a thin film
of sanitary lubricant to metal part of rear seal. Also
apply a thin film of sanitary lubricant inside the hole
of the front of the auger .
B. Assemble the rear seals onto the augers with the
large end to the rear. Be sure the O-ring is in place
before installing the rear seal.
C. Lubricate the inside of the auger drive sockets (rear)
with a small amount of white socket lubricant. A
small container of socket lubricant is shipped with
the freezer.
14
D. Screw the springs onto the studs in plastic flights.
Springs must be screwed into the flights com
pletely to provide compression (Fig. 26).
Figure 27. Exploded View of Front Door
Figure 26. Exploded View of Auger
CAUTION
Do not place the mix inlet regulator into the hopper
before installing the auger . Attempting to inst all the
auger with mix inlet regulator in place will damage the
mix inlet regulator .
E. Install the two plastic flights onto rear of the auger
and insert part way into freezer barrel.
F . Install the third plastic flight, push the auger into the
freezer barrel and rotate slowly until the auger
engages the drive socket.
G. Install the auger support and bearing into the front of
the augers with one leg of the support at 9 o’clock.
NOTE
Apply a small amount of Petro-Gel to the
surface of the cam on the spigot handle prior to
assembly of handle to the spigot body .
I. Install the front door on the freezer.
J. Install the circular knobs on the freezer studs.
CAUTION
Overtightening or uneven tensioning of circular
knobs may cause damage to front door and cause
leaking. Hand tighten circular knobs evenly .
Look for the proper seal between the freezer barrel, Oring, and front door.
K. Install the mix air regulator into the freezer with the
air tube to the front of the freezer. (Fig. 28).
H. Install the spigot bodies with O-rings into the front
door from the bottom (Fig.27). Push straight up until
the spigots are in place. Install rosette caps.
Figure 28. Install Mix Inlet Regulators
L. Thread agitator onto blender agitator shaft. (Fig. 23).
NOTE
Refer to page 3-2, section 3.3, for sanitizing the
assembled freezer before filling with mix.
15
3.12 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.
3.13 PREVENTIVE MAINTENANCE
It is recommended that a maintenance schedule be followed to keep the freezer clean and operating properly.
A. Cleaning and Sanitizing Information
Soft serve freezers require special consideration
when it comes to food safety and proper cleaning
and sanitizing.
The following information has been compiled by
Purdy Products Company, makers of Stera-Sheen
Green Label Cleaner/Sanitizer and specifically
covers issues for cleaning and sanitizing frozen
dessert machines. This information is meant to
supplement a comprehensive food safety program.
Important Differences Between Cleaning and
Sanitizing
CLEANING vs. SANITIZING
It is important to distinguish between cleaning and
sanitizing. Although these terms may sound
synonymous, they are not. BOTH are required for
adequate food safety and proper machine
maintenance.
CLEANING
·Is the removal of soil materials from a surface.
·Is a prerequisite for effective sanitizing.
NOTE
An UNCLEAN surface will harbor bacteria that can
defy sanitizing efforts.
Bacteria can develop and resist sanitizing efforts
within a layer of soil material (milkstone). Thorough
cleaning procedures that involve milkstone
removal are critical for operators of frozen
dessert machines.
Soil Materials Associated with Frozen Dessert
Machines
MILKFAT/BUTTERFAT – As components of icecream/frozen custard mix, these soils will
accumulate on the interior surfaces of the machine
and its parts. Fats are difficult to remove and help
attribute to milkstone build-up.
MILKSTONE – Is a white/gray film that forms on
equipment and utensils that come in contact with
dairy products. These films will accumulate slowly
on surfaces because of ineffective cleaning, use of
hard water, or both. Milkstone is usually a porous
deposit, which will harbor microbial
contaminants and eventually defy sanitizingefforts.
Once milkstone has formed, it is very difficult to
remove. Without using the correct product and
procedure, it is nearly impossible to remove a thick
layer of milkstone.
(NOTE: general-purpose cleaners DO NOT remove
milkstone.) This can lead to high bacteria counts
and a food safety dilemma.
IT IS BEST TO CONTROL MILKSTONE ON A
DAILY BASIS BEFORE IT CAN BECOME A
SIGNIFICANT FOOD SAFETY PROBLEM.
In addition to food safety, milkstone can cause
premature wear to machine parts which can add to
costs for replacement parts or possibly more
expensive repairs if worn machine parts are not
replaced once they have become excessively worn.
SANITIZING
·Kills bacteria.
·Can be effective on clean surfaces only.
·DOES NOT clean or remove milkstone.
NOTE
Using a SANTITIZER on an unclean surface
will not guarantee a clean and safe frozen
dessert machine.
Proper Daily Maintenance:
The Only Way to Assure Food Safety and
Product Quality
Proper daily maintenance can involve a wide variety
of products and procedures. Overall, the products
and procedures fall into three separate categories.
(Please note that this is a brief overview intended
for informational purposes only.)
1.CLEANING – This involves draining mix from
the freezer barrel and rinsing the machine with
water. Next, a cleaner is run through the
machine. Then, the machine is disassembled
and removable parts are taken to the sink for
cleaning.
2.MILKSTONE REMOVAL – Since almost all
cleaners do not have the ability to remove
milkstone, the use of a delimer becomes
necessary. Although this procedure may not be
needed on a daily basis, it will usually follow the
cleaning procedure. It requires letting a delimer
solution soak in the machine for an extended
period of time. Individual parts are also soaked
in a deliming solution for an extended period of
time (more about delimers in AdditionalInformation).
16
3.SANITIZING – After the machine has been
cleaned and contains no milkstone, the
machine is reassembled. Then a FDA approved
sanitizing solution is run through the machine to
kill bacteria. The machine is then ready for
food preparation.
As a recommended cleaner and sanitizer for your
frozen dessert machine, STERA-SHEEN has proven
to be one of the best daily maintenance products for:
·CLEANING – Thorough removal of all solids
including butterfat and milk fat.
·MILKSTONE REMOVAL – Complete removal of
milkstone.
THE USE OF CHLORINE TEST STRIPS
“Test strips” are used to determine concentrations of
active chlorine in sanitizing solutions. To use the
strips, tear off a small portion and submerge it into
the sanitizing solution. Then, compare the color
change to the color key on the side of the test strip
dispenser to determine the approximate chlorine
concentration.
The ideal concentration of chlorine needs to be 100
ppm (as stated by the FDA).
NOTE
Follow the directions on the container for proper
concentration.
·SANITIZING – FDA-approved no rinse sanitizer
for food contact surfaces.
Additional Information
THE USE OF DELIMERS
A delimer is a strong acid that has the ability to
dissolve milkstone. This type of chemical may
become necessary once high levels of milkstone
have developed. While these products are very
effective for removing HIGH levels of milkstone, they
are not ideal for two reasons:
1.PRODUCT SAFETY – Strong acids are
dangerous chemicals and handling them
requires safety
2.MACHINE DAMAGE – Strong acids will attack
metal and rubber causing premature wear of
parts. The use of a delimer needs to be closely
monitored to avoid damage to machine surfaces
and parts.
With proper daily use of STERA-SHEEN or it’s
equivalent, there is no need for the use of a
DELIMER.
DO NOT USE BLEACH
·BLEACH HAS ABSOLUTELY NO CLEANING
PROPERTIES.
·BLEACH IS CORROSIVE. It can and will
damage components of the machine causing
premature wear and metal corrosion.
GENERAL PURPOSE CLEANERS
General purpose cleaners donot have the ability to
remove milkstone. Milkstone will become a problem
if not remedied with additional products and
procedures.
There are two main factors that contribute to falling
chlorine concentrations in a sanitizing solution.
1.PRODUCT USE – As the chlorine in the
solution is being used, chlorine concentrations
fall.
2.TIME – As time passes, small amounts of
chlorine “evaporate” from the solution. (That is
why you can smell it.)
Sanitizing solutions should not be allowed to fall
below 100 ppm chlorine. New solutions should be
mixed once old solutions become ineffective
B. 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.
CAUTION
Do not use acidic cleansers, stron caustic compounds or abrasive materials to clean any part of
the freezer exterior or plastic parts. Use of these
types of cleaners will cause equipment damage.
C. WEEKLY
1.Check O-rings and rear seal for excessive
wear and replace if necessary.
2.Remove the drip tray by gently lifting up to
disengage from the support and pulling out.
Clean behind the drip tray and front of the
freezer with a soap solution.
17
D. QUARTERLY
WARNING
High voltage will shock, burn or cause death. Turn
off and lock out main power disconnect before
servicing. Do not operate machine with cabinet
panels removed.
The air-cooled condenser is a copper tube and aluminum
fin type. Condensing is totally dependent upon airflow. A
plugged condenser filter, condenser, or restrictions in the
louvered panel will restrict airflow. This will lower the
capacity of the system and damage the compressor.
The condenser must be kept clean of dirt and grease. The
freezer must have a minimum of 3” (7.5 cm) of ventilation
on the right and left sides of the unit for free flow of air
(Figure 29). Make sure the freezer is not pulling over 100°
F (37° C) air from other equipment in the area.
The water-cooled condenser is a tube and shell type. The
condenser needs a cool, clean supply of water to properly
cool the freezer, inlet and discharge lines must be 3/8” I.D.
minimum.
Figure 29. Condenser and Filter
5. Using a vacuum, carefully clean the condenser coil
from the inside and outside of the freezer. A stiff
bristled brush may help in releasing debris from
between the condenser coils.
The condenser and condenser filter require periodic
cleaning. To clean, refer to the following procedures.
1. Remove the Phillips head screw from the bottom of
the right side panel, and then slide the panels down
and out.
2. To remove the condenser filter, grasp the top and pull
off. Visually inspect for dirt. If the filter is dirty, shake
or brush excess dirt off the filter and wash in warm,
soapy water. Once the filter is clean rinse thoroughly
in warm, clear water and shake dry, taking care not
to damage the filter in any way Figure 29).
3. Visually inspect the condenser for dirt by shining a
light through the coil from the back (inside) of the
condenser.
4. If the condenser is dirty, place a wet towel over the
front (outside) of the condenser.
Figure 30. Cleaning Condenser
NOTE
If the condenser is not kept clean, loss of refrigeration efficiency will result; causing extended run
time or soft product consistency.
Water-cooled condensers need an unrestricted supply
of cold, clean water.
18
20
SECTION 4
TROUBLESHOOTING CHARTS
MELBORPESUACELBISSOPYDEMER
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rofrotubirtsidllaC(.metsyskcehC.5
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ecapstnevfosehcni3fomuminimA.2
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).ecivresrofrotubirtsidllaC(.tsujdaeR.3
).ecivresrofrotubirtsidllaC(.e
).ecivresrofrotubirtsidllaC(.kcehC.5
21
MELBORPESUACELBISSOPYDEMER
seodtcudorP
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S.3
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.gnilaeuqs
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.desugniebximrof
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.dedeecxe
.deppirtdaolrevorotomevirD.5
(.teser
.eruliaftlebevirD.6
).nruttonlliwreguA(.pu-ezeerF.7
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.)nruttonlliwreguA(pu-ezeerF.2
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.gnissimrotalugertelnixiM.2
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.nwodkaerbtcudorP.5
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rof
22
ERROR CODE SYSTEM
CODEP.T.F. LIGHT FLASHES MEANING
01Sequence of one* Program board
02Sequence of two* Power board
03Sequence of three* Low torque error
04Sequence of four** Clean error
05Sequence of five* Barrel sensor
06Sequence of six* Hopper sensor
07Sequence of seven* Drive motor
*Refer to Page 19 for Troubleshooting.
**If the Clean switch is operated three times within 10 seconds, this will
cause the Push-T o-Freeze light to flash and the clean function will be
disabled for 10 minutes. The power switch must remain on or the 10
minute timer will not time out. A flashing clean light is not an error .
NOTE
Flashing CLEAN light is not an error. It indicates the freezer is in the CLEAN mode. To exit, turn the OFF-ON
switch to the OFF position.
23
24
SECTION 5
REPLACEMENT PARTS
5.1 HOW TO ORDER PARTS
To assure receipt of the proper replacement parts, supply
your dealer or distributor with the following information:
A. Model number of equipment.
O-RING IDENTIFICATION SHEET
MODEL FUTURA 144
B. Serial number of model, stamped on nameplate.
C. Part number, part name and quantity needed. Common part
names and numbers are listed in this manual.
Spigot (4)
624598-5
5/8" ID x 1/8" CS
Front Door (1)
625133
4" ID x 3/16" CS
Mix Inlet Regulator (1)
624677-5
1-1/8" ID x 1/8" CS
O-rings are drawn to
Approximate Size
25
16
2
1
4
3
6
5
12
11
2
3
7
8
9
13
9
14
17
18
19
10
15
7
Figure 31. Spigot, Front Door and Auger Assembly
Item No.Part No.DescriptionQty.
12183047Front Door Only1
21770721.5" S pigot Extension
21770732.5" S pigot Extension
and Spigot Extension (5 Pack)6
113170644Front Auger Support2
12149003Auger Bushing2
134157968Auger Shaft2
14624678O-ring Auger Shaft Seal (5 Pack)2
15666786Auger Shaft Seal2
16522839Blender Motor1
17274031Blender Agitator Collar1
18674147Blender Agitator Shaft1
19521026Blender Agitator1
20744299Blender Drip T ray (Not Shown)1
21681514Clear Swing S plash Shield (Not Shown) 1
26
WARRANTY
SOFT SERVE / SHAKE FREEZERS
1. Scope:
Stoelting, LLC warrants to the first user (the “Buyer”) that the freezer cylinders, hoppers, compressors, drive motors,
speed reducers, auger and auger flights of Stoelting soft serve / shake freezers 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 STOEL TING HEREBY DISCLAIMS ANY IMPLIED WARRANTY OF MERCHANT ABILITY OR FITNESS FOR PA RTICULAR 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
Checklist/Warranty Registration Card 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,
auger seals, auger support bushings and drive belts. All such parts are sold
AS IS.
Further, S toelting 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 W ARRANTY SHALL BE THE SOLE LIABILITY STOEL TING
AND THE EXCLUSIVE REMEDY OF BUYER WITH RESPECT TO EQUIPMENT SUPPLIED BY
STOEL TING; AND IN NO EVENT SHALL ST OELTING BE LIABLE FOR ANY INCIDENT AL OR
CONSEQUENTIAL DAMAGES, WHETHER FOR BREACH OF W ARRANTY OR OTHER CONTRACT BREACH, NEGLIGENCE OR OTHER T ORT, OR ON ANY STRICT LIABILITY THEORY .
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