Model F231 SERVICE MANUAL

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Model F231 SERVICE MANUAL | Manualzz
Model F231
SERVICE MANUAL
Manual No. 513659
Rev.1
INTELLITEC2 FIRMWARE
VERSION UPDATE LOG
The list below shows the history of the firmware versions in the IntelliTec2 control. The information in this manual
refers to Version 20.27.
VERSION 20.27 - CURRENT VERSION
Released on 12/28/10
• Added Unit Serial Number to Service Contact Information and Modify Contact Information
• Added Clean Warning to Clean Options
VERSION 20.15
Released 11/23/10
• Added Enable Control to Basic Settings
• Removed Enable CutOut Temp from Basic Settings
• Changed CutOut Consistency to CutOut Consistency Offset
• Added CutIn Consistency Offset
• Moved Sleep 1 Drive On and Sleep 1 Drive Off to Factory Settings from Advanced Settings
• Moved Stir On and Stir Off to Advanced Settings from Factory Settings
• Added Storage Refrigeration to Storage Settings
• Storage CutIn changed to 37.5°F (was 37°F)
• Moved Pressure Sensing and Liquid Sensing to Factory Settings
• Added Clean Options to Utilities page 1
• Moved Clean Lockout to Clean Options from Utilities page 1
• Added Clean History Log to Clean Options
VERSION 17.19
Released on 9/8/10
Note: They are few initial machines with 15.19 (8/23/10) where cutout consistency was 70, then pulleys were
changed. Two machines with 16.19 had 60 as cutout limit, then some minor internal reset timers were changed
and 17.19 released on 9/8/10
• Consistency Limit changed to 60 (was 110 for 1 phase / 80 for 3 phase)
• Moved Stir On and Stir Off to Factory Settings from Basic Settings
• Enable CutOut Temp and CutOut Temp moved to Basic Settings from Factory Settings
• Sleep 1 Drive Off changed to 600 seconds (was 300 seconds)
• Sleep 2 CutIn changed to 33°F (was 38°F)
• Sleep 2 CutOut changed to 30.5°F (was 30°F)
(continued on next page)
iii
VERSION 17.19 (CONTINUED)
• Storage CutOut changed to 32°F (was 31°F)
• Storage Offset changed to 4°F (was 2°F)
• Storage Off Time changed to 13 min (was 2 min)
• Storage On Time changed to 130 sec (was 200 sec)
• Storage Max On changed to 3 min (was 10 min)
• Storage Recovery changed to 4 min (was 1 min)
• Clean Lockout Period moved to Factory Settings from Storage Settings
• Touchpad Lockup moved to Utilities from User Preferences
• Date Format added to Time and Date
• Added second Utilities page
• Changed Utilities page 1 to be accessible to Manager passcode
• Testing and Manual Operation, Restore Factory Defaults, Clear Error Log and Clear Statistics moved to
Utilities page 2 from page 1
• Added Product Selection, Export Machine Stats to Utilities page 1
• Removed Clear EEPROM Map from Utilities
• Added Motor Zero Load Calibration, Restore Motor Table Defaults and Reset Unit Configuration to Utilities
page 2
iv
Service Manual
For F231
Stoelting Floor Model Gravity Machine
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 provide new parts for freezers 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 the company at the following location:
STOELTING
502 Hwy. 67
Kiel, WI 53042
© 2011 Stoelting, LLC, All Rights Reserved
Ph:
800-558-5807
Fax: 920-894-7029
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 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 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.
NOTICE
The signal word “NOTICE” indicates information or
procedures that relate directly or indirectly to the
safety or personnel or equipment/property.
TABLE OF
CONTENTS
Section
Description
Page
1
Description and Specifications
1.1
Description.................................................................................................. 1
1.2
Specifications ............................................................................................. 2
2
Installation Instructions
2.1
Safety Precautions ..................................................................................... 5
2.2
Shipment and Transit.................................................................................. 5
2.3
Machine Installation .................................................................................... 5
2.4
Installing Permanent Wiring........................................................................ 5
3
Initial Set-Up and Operation
3.1
Operator’s Safety Precautions.................................................................... 7
3.2
Operating Controls and Indicators .............................................................. 7
3.3
Disassembly of Machine Parts ................................................................... 8
3.4
Cleaning Disassembled Parts .................................................................... 9
3.5
Sanitizing Machine Parts ............................................................................ 9
3.6
Cleaning the Machine ................................................................................. 9
3.7
Assembling the Machine ............................................................................ 10
3.8
Sanitizing .................................................................................................... 10
3.9
Freeze Down and Operation ...................................................................... 11
3.10
Mix Information ........................................................................................... 11
4
Maintenance and Adjustments
4.1
Accessing Control Readings and Settings ................................................. 13
4.2
Navigation and Modifying Settings ............................................................. 13
4.3
User Interface Screens ............................................................................... 13
4.4
Performance Screens ................................................................................. 14
4.5
Settings Screens ........................................................................................ 14
4.6
Utilities Screens .......................................................................................... 16
4.7
Errors & Statistics Screens ......................................................................... 19
4.8
Updating Firmware ..................................................................................... 21
4.9
Drive Belt Tension Adjustment .................................................................... 22
4.10
Condenser Cleaning ................................................................................... 22
4.11
Preventative Maintenance .......................................................................... 23
4.12
Extended Storage ....................................................................................... 23
Section
Description
Page
5
Refrigeration System
5.1
Refrigeration System .................................................................................. 25
5.2
Refrigerant Recovery and Evacuation ........................................................ 25
5.3
Refrigerant Charging .................................................................................. 26
5.4
Compressor ................................................................................................ 27
5.5
Condenser .................................................................................................. 28
5.6
Valves ......................................................................................................... 28
A.
Thermostatic Expansion Valve (TXV) .................................................................. 28
B.
Check Valve ......................................................................................................... 29
C.
High Pressure Cutout ........................................................................................... 29
D.
Hot Gas Bypass ................................................................................................... 30
E.
Evaporator Pressure Regulator (EPR) ................................................................. 30
F.
Water Valve (Water Cooled Models Only) ............................................................ 31
5.7
Solenoid...................................................................................................... 32
5.8
Filter Drier ................................................................................................... 33
5.9
Capillary Tube............................................................................................. 34
6
Electrical and Mechanical Control Systems
6.1
Intellitec2 Control ........................................................................................ 35
6.2
Contactors .................................................................................................. 35
6.3
Drive Motor ................................................................................................. 36
6.4
Capacitors .................................................................................................. 37
6.5
Gearbox ...................................................................................................... 37
6.6
Condenser Fan Motor (Air-Cooled Only) .................................................... 37
6.7
Spigot Switch .............................................................................................. 38
6.8
Temperature Control Sensor ...................................................................... 39
7
Troubleshooting
7.1
Error Codes ................................................................................................ 41
7.2
Troubleshooting .......................................................................................... 42
7.3
Troubleshooting - Machine ......................................................................... 44
8
Replacement Parts
8.1
Decals and Lubrication ............................................................................... 45
8.2
Panels and Screws ..................................................................................... 45
8.3
Auger Shaft and Faceplate Parts ............................................................... 46
8.4
Internal Components .................................................................................. 48
8.5
Spigot Assembly ......................................................................................... 50
8.6
Front ........................................................................................................... 50
8.7
Wiring Diagrams ......................................................................................... 51
SECTION 1
INTRODUCTION
1.1 DESCRIPTION
The Stoelting F231 floor machine is gravity fed. The
machine is equipped with the IntelliTec2 control which
provides a uniform product. The F231 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 personnel and operators in the installation, operation and
maintenance of the Stoelting F231 gravity machine.
Figure 1-1 Model F231
1
1.2
SPECIFICATIONS
Figure 1-2 Specification
Model F231
Dimensions
Machine
with crate
width
height
depth
19-1/4’’ (48,9 cm)
58-1/4’’ (148,0 cm)
28’’ (71,1 cm)
40-1/4’’ (102,2 cm)
64-1/2’’ (163,8 cm)
33-1/4’’ (84,5 cm)
Weight
Electrical
running amps
connection type
400 lbs (181,4 kg)
1 Phase, 208-240 VAC, 60Hz
approximately 12A
NEMA 6-20P power cord provided
490 lbs (222,2 kg)
3 Phase, 208-240 VAC, 60Hz
approximately 10A
NEMA L15-20P power cord provided
International Option
Compressor
Drive Motor
1 Phase, 220-240 VAC, 50Hz
12,000 Btu/hr (R-404A)
Two - 3/4 hp
Air Flow
Air cooled units require 3” (7,6 cm) air space on both sides
Water cooled units require 1/2” N.P.T. water and drain fittings.
Plumbing Fittings Maximum water pressure of 130 psi. Minimum water flow rate of 3 GPM. Ideal
EWT of 50°-70°F
Hopper Volume
Freezing Cylinder
Volume
Two - 3 gallon (11,35 liters)
Two - 0.85 gallon (3,22 liters)
2
Menu
Display
F231
Basic
Enable Control
CutOut Consist Offset
CutIn Consist Offset
CutIn Temp
CutOut Temperature
Cycles In Serve Mode
Standby On Time
Standby Off Time
Standby Time
Stir On
Stir Off
Sleep 2 CutIn
Sleep 2 CutOut
Default Off Time
Storage Refrigeration
Storage CutIn
Storage CutOut
Storage Offset
Storage Off Time
Storage On Time
Storage Max On
Storage Recovery
Storage Too Warm
Storage Too Warm
Consistency/Consistency
7
30
19.5 °F
19 °F
20
10 sec
360 sec
120 min
15 sec
600 sec
33 °F
30.5 °F
300 sec
Active
37.5 °F
32 °F
4 °F
13 min
130 sec
3 min
4 min
50 °F
2 hr
Advanced
Storage
F231
Refrigerant
Charge
Suction Pressure
(at 72°F)
R-404A
(W/C) 32 oz
(A/C) 42 oz
One Cylinder 18-22 psig
Both Cylinders 22-27 psig
Hopper Only 14 psig
Discharge Pressure
225-235 psig
Hot Gas Bypass
Pressure
EPR Valve
14 psig (only hopper running)
68-70 psig
3
4
Temperature
CutOut
Consistency
CutIn
Temperature
or
Consistency
Standby Time*
Standby
On Time
Standby
Off Time
Standby Mode
Standby
Time
Sleep 2 CutIn*
Sleep 2 CutIn
Sleep 2 Cutout
Sleep 2 CutIn
Sleep 2 Mode
PUSH TO FREEZE or Spigot Pull
Sleep 1 Mode
PUSH TO FREEZE or Spigot Pull
Note:
1) A stir cycle will start in each mode. The cycle is independent of the freezing cycle.
2) Normal start up mode is Sleep 1 when the number of cycles is set below 99. When cycles are set higher than 99,
the freezer will start up in the Serve mode.
3) Sensor failure will keep the control in Serve and Standby modes only.
4) A freeze cycle will reset the stir cycle.
5) Serve Mode is active for the Temperature/Consistency setting and monitors CutIn Temperature. Serve 2 Mode is
active for the Consistency/Consistency setting and monitors CutIn Consistency. Both use CutOut Consistency.
* Resets any time the PUSH TO FREEZE button is pressed or a spigot is pulled. In order for the mode to change, it has to go through its normal
cycles without reset.
Cycles Until Sleep*
Freezing Cycle
Serve Mode / Serve 2 Mode
PUSH TO FREEZE or Spigot Pull
IntelliTec2 Control Modes of Operation
SECTION 2
INSTALLATION INSTRUCTIONS
2.1 SAFETY PRECAUTIONS
A.
Uncrate the machine.
Do not attempt to operate the machine until the safety
precautions and operating instructions in this manual are
read completely and are thoroughly understood.
B.
Install the four casters. Turn the threaded end
into the machine until no threads are showing. To
level, turn out casters no more than 1/4” maximum,
then tighten all jam nuts.
C.
The machine must be placed in a solid level
position.
Take notice of all warning labels on the machine. 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 machine. Labels should be checked periodically to be sure they can be recognized as warning labels.
NOTE
Accurate leveling is necessary for correct drainage
of freezing cylinder and to insure correct overrun.
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
ATTENTION: Customer Service
502 Hwy. 67
Kiel, Wisconsin 53042
D.
Machines with air cooled condensers require a
minimum of 3” (7,5cm) of space on both sides
for proper circulation. (Fig. 2-1)
E.
Machines that have a water cooled condenser
require 1/2” NPT supply and drain fittings.
2.2 SHIPMENT AND TRANSIT
The machine has been assembled, operated and inspected
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
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 machine 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.
Figure 2-1 Space and Ventilation Requirements
2.4 INSTALLING PERMANENT WIRING
To install wiring follow the steps below:
2.3 MACHINE INSTALLATION
A.
Refer to the nameplate on the side panel of the
machine for specific electrical requirements. Make
sure the power source in the building matches
the nameplate requirements.
B.
Remove the back panel and the junction box
cover located at the bottom of the machine.
C.
Install permanent wiring according to local code.
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 factory warranty.
Installation of the machine involves moving the machine
close to its permanent location, removing all crating, setting in place, assembling parts, and cleaning.
5
6
SECTION 3
INITIAL SET-UP AND OPERATION
3.1 OPERATOR’S SAFETY PRECAUTIONS
3.2 OPERATING CONTROLS AND INDICATORS
SAFE OPERATION IS NO ACCIDENT; observe these
rules:
Before operating the machine, it is required that the operator know the function of each operating control. Refer
to Figure 3-1 for the location of the operating controls on
the machine. For the information regarding error codes
displayed on the control panel, refer to the troubleshooting
section of this manual.
A.
Know the machine. Read and understand the
Operating Instructions.
B.
Notice all warning labels on the machine.
C.
Wear proper clothing. Avoid loose fitting garments,
and remove watches, rings or jewelry that 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 power for maintenance. Never
attempt to repair or perform maintenance on the
machine until the main electrical power has been
disconnected.
G.
A. INTELLITEC2 TOUCHPAD
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 panels removed.
Main Power On/Off
The Main Power button is used to supply power to the
IntelliTec2 control, the freezing cylinder circuits and the
storage refrigeration system. When the machine is first
plugged in, the control defaults to the On status with power
to the hopper only. If the Main Power On/Off button is
pressed when the machine is on, the machine will turn
off and a status message will be displayed on the screen.
Do not operate under unsafe operating conditions.
Never operate the machine if unusual or excessive
noise or vibration occurs.
IntelliTec2 Control
(See Figure 3-2)
Dispense Rate
Adjustor
Figure 3-1 Machine Controls
7
3.3 DISASSEMBLY OF MACHINE PARTS
Figure 3-2 IntelliTec2 Control
Before using the machine for the first time, complete
machine disassembly, cleaning and sanitizing procedures need to be followed. Routine cleaning intervals
and procedures must comply with the local and state
health codes. Inspection for worn or broken parts should
be made at every disassembly of the machine. All worn
or broken parts should be replaced to ensure safety to
both the operator and the customer and to maintain good
machine performance and a quality product. Check the
wear line on the auger flights on a regular basis (Fig.
3-3) and replace as needed. Frequency of cleaning must
comply with the local health regulations.
Help
Pressing the Help button will display help information
dependant on the cursor’s location. Pressing the Help
button again will exit the help screen.
Selection Button (SEL)
The SEL button is used by technicians to select menu
options.
Wear Line
Set Button (SET)
The SET button is used by technicians to save changes
when modifying control settings.
On/Off Button
Power to the freezing cylinders can then be controlled
with the On/Off Left and On/Off Right switches.
Push to Freeze Button
Pressing the PUSH TO FREEZE button initiates “Serve
Mode”.
Clean Button
Figure 3-3 Auger Flight Wear
To disassemble the machine, refer to the following steps:
A. REMOVING MIX
For the first time cleaning the machine, skip to part B.
Disassembly of Front Door.
1.
Press the Clean button. After mix has melted
(about 5 minutes) open the spigot to drain the
mix.
The arrow buttons are used by technicians to navigate
through the control readings and settings.
2
Fill the hopper with 2 gallons (8 liters) of cool tap
water.
B. SPIGOT SWITCH
3.
Press the Clean button to run the machine. After
30 seconds press the Clean button again to stop
the auger.
4.
Drain the water out of the machine.
The CLEAN button initiates “Clean Mode”.
Arrow Buttons ()
The spigot switch is mounted to the spigot cam assembly
behind the header panel. When the spigot is opened to
dispense product, the spigot switch opens and the “Serve
Mode” begins.
NOTE
C. DISPENSE RATE ADJUSTOR
The dispense rate adjustor is located under the header
panel, to the immediate right of the spigot handles. Turning
the knob counterclockwise will decrease the dispense rate.
If the water does not drain clear, repeat steps 2-4.
5.
Use Stera-Sheen or equivalent sanitizing solution
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 of 90° to 110°F (32°C to 43°C) water. Any
sanitizer must be used only in accordance with
the manufacturer’s instructions.
6.
Pour the sanitizer into the hopper.
7.
Using brushes provided, scrub the hopper.
8.
After 5 minutes, drain the sanitizer out of the
freezing cylinder.
D. MIX LOW LIGHTS
The mix low lights are located at the back of the F231.
There is a light for each freezing cylinder. A steady light
signifies a low mix condition. A blinking light signifies an
error. The light will automatically turn off when the condition has been resolved.
E. USB ACCESS PORT
The USB access port is located on the right side panel
of the machine. The port is used by technicians to import
firmware and export machine statistics.
8
B. DISASSEMBLY OF FRONT DOOR
3.4 CLEANING DISASSEMBLED PARTS
1.
Turn the machine off by pressing the Main Freezer
Power Off/On button on the IntelliTec2 control.
2.
Remove the knobs on the front door.
3.
Remove the front door by pulling it off the studs.
4.
Remove the spigot through the bottom of the front
door.
5.
Remove all o-rings from parts by first wiping off
the lubrication using a clean towel. Then squeeze
the o-ring upward to form a loop (Fig. 3-4). Roll
the o-ring out of the groove.
Disassembled machine parts require complete cleaning,
sanitizing and air drying before assembling. Local and state
health codes will dictate the procedure required. Some
state health codes require a four sink process (pre-wash,
wash, rinse, sanitize, air dry), while others require a three
sink process (without the pre-wash step). The following
procedures are a general guideline only. Consult your
local and state health codes for the procedures required
in your location.
A.
Prepare Stera-Sheen or equivalent in 2 gallons
of 90° to 110°F (32° to 43°C) water following
manufacturers instructions. Place all parts in the
solution and clean with provided brushes.
B.
Rinse all parts with clean 90° to 110°F (32° to
43°C) water.
C.
Wash the hopper and freezing cylinder with the
Stera-Sheen solution and brushes provided.
D.
Clean the rear seal surfaces from the inside of the
freezing cylinder with the Stera-Sheen Solution.
3.5 SANITIZING MACHINE PARTS
A.
Use Stera-Sheen or equivalent sanitizing solution
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 of 90° to 110°F (32°C to 43°C) water. Any
sanitizer must be used only in accordance with
the manufacturer’s instructions.
Place all parts in the sanitizing solution for 5
minutes, then remove and let air dry completely
before assembling in machine.
Figure 3-4 Removing O-Ring
B. DISASSEMBLY OF AUGER
1.
Remove the front auger support and bushing.
2.
Remove the auger assembly from the machine.
Pull the auger out of the machine barrel slowly.
As the auger is being pulled out, carefully remove
each of the plastic flights with springs.
B.
3.
Keep the rear of the auger tipped up once it is
clear of the freezing cylinder to prevent the rear
seal assembly from dropping.
3.6 CLEANING THE MACHINE
4.
Wipe the spline lubricant off of the hex end of the
auger with a paper towel. Remove the rear seal
assembly (Fig. 3-5).
5.
Unscrew the springs from the auger flights.
Figure 3-5 Rear Seal Assembly
The exterior should be kept clean at all times to preserve
the luster of the stainless steel. A high grade of stainless
steel has been used on the machine to ease cleanup. To
remove spilled or dried mix, wash the exterior with 90° to
110°F (32°C to 43°C) Stera-Sheen solution and wipe dry.
Do not use highly abrasive materials, as they will mar the
finish. Use a soft cloth or sponge to apply the solution.
For best results, wipe with the grain of the steel.
9
A.
Clean the rear seal surface from inside of the
freezing cylinder.
B.
Using sanitizing solution and the large barrel
brush provided, sanitize the freezing cylinder by
dipping the brush in the sanitizing solution and
brushing the inside of the freezing cylinder.
C.
Remove the drip tray by pulling from the front
panel. Clean and replace the drip tray.
3.7 ASSEMBLING MACHINE
H.
Apply a thin layer of sanitary lubricant to the inside
and outside of the auger support bushing. Install
the bushing onto the auger support and install the
auger support into the front of the auger. Rotate
the auger support so that one leg of the support
points straight up.
I.
Apply a thin layer of sanitary lubricant to the
o-rings on the spigot body and install the spigot
body through the bottom of the front door.
K.
Apply a thin film of sanitary lubricant to the door
seal o-ring and fit it into the groove on the rear
of the front door.
M.
Place the front door assembly on the mounting
studs and the push front door against the machine
carefully.
N.
Secure the front door to the machine by placing
the knobs on the studs and tightening until finger
tight. Do not overtighten. A proper o-ring seal can
be observed through the transparent front door.
To assemble the machine parts, refer to the following steps:
NOTICE
Petrol-Gel sanitary lubricant or equivalent must be
used when lubrication of machine parts is specified.
NOTICE
The United States 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 all o-rings onto parts dry, without
lubrication. Then apply a thin film of sanitary
lubricant to exposed surfaces of the o-rings.
B.
Lubricate the rear seal area on the auger shaft
with a thin layer of sanitary lubricant. Install the
rear seal o-ring. Lubricate the outside of the rear
seal o-ring with sanitary lubricant.
C.
Lubricate the inside metal surface of the rear
seal and install it onto the auger shaft. DO NOT
lubricate the outside of the rear auger seal (Fig.
3-6).
D.
3.8 SANITIZING
Sanitizing must be done after the machine is clean and
just before the machine is filled with mix. Sanitizing the
night before is not effective. However, you should always
clean the machine and parts after using it.
Lubricate the hex drive end of the auger with a
small amount of spline lubricant. A small container
of spline lubricant is shipped with the machine.
E.
Screw the springs onto the studs in the plastic
flights. The springs must be screwed into the
flights completely to provide proper compression.
F.
Install the two plastic flights onto the rear of the
auger and insert it part way into the freezing
cylinder.
G.
Install the remaining plastic flights, push the auger
into the freezing cylinder and rotate slowly until
the auger engages the drive shaft.
NOTE
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 machine, 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 2 gallons of 90°F to 110°F (32°C to
43°C) 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.
A.
Prepare 2 gallons of Stera-Sheen sanitizing
solution following the manufacturer’s instructions.
B.
Install the mix inlet regulator into the hopper.
C.
Pour the sanitizing solution into the hopper.
D.
Make sure the display shows the freezing cylinder
is off. If it is not, press the On/Off Left or On/Off
Right button to turn it off.
NOTE
If the freezing cylinder is not off, the control will
not go into Clean mode. This is to protect from accidentally going into Clean mode.
Figure 3-6 Lubricate Rear Seal
E.
10
Press the CLEAN button.
F.
Check for leaks.
NOTE
1. Check for leaks at the front door seals.
2. Check the drain tray located under the front
door for leaks coming from the rear of the rear
auger seal.
G.
Using a sanitized soft bristle brush (or equivalent)
dipped in sanitizing solution, clean the hopper
sides, mix inlet regulator and underside of the
hopper cover.
H.
After five minutes, open the spigot to expel
sanitizing solution. Drain all of the solution from
the machine.
I.
When the solution has drained, press the CLEAN
button to stop the auger. Allow the freezing cylinder
to drain completely.
The machine is now sanitized and ready for adding mix.
3.9 FREEZE DOWN AND OPERATION
A.
Sanitize immediately before use.
B.
Make sure the display shows the freezing cylinder
is off. If it is not, press the On/Off Left or On/Off
Right button to turn it off.
C.
Fill the hopper with at least 2.5 gallons of mix.
D.
Place a container under the spigot and open the
spigot to allow the mix to flush out about 8 ounces
(0.23 liters) of sanitizing solution and liquid mix.
E.
Press the On/Off button for the cylinder.
F.
Press the PUSH TO FREEZE button.
NOTE
After the drive motor starts, there is a 3-second
delay before the compressor starts.
G.
When the product is at 75% consistency, the
display will read “SERVE”. Open the spigot to
dispense product.
NOTE
If the product consistency needs to be adjusted, use
the Technician passcode and go to the Basic Settings menu. Adjust the CutOut Consistency higher
to increase the consistency or lower to decrease
the consistency. Make adjustments in increments
of 5 for best results.
H.
The machine dispenses product at a reasonable
draw rate. If the machine is overdrawn, the result
is a soft product or a product that will not dispense
at all. If this occurs, allow the machine to run for
approximately 30 seconds before dispensing more
product. A dispense rate adjustor is located under
the header panel, to the immediate right of the
spigot handle. Turning the knob counterclockwise
will decrease the dispense rate.
I.
Do not operate the machine when the MIX LOW
message is displayed. Refill the mix container
immediately.
11
The machine has a standby and sleep mode. After
a preset number of freezing cycles, it will enter the
standby mode (followed by sleep mode) and remain
there until someone draws product or presses the
PUSH TO FREEZE button. In the sleep mode, the
machine will keep the product below 41°F (5°C).
Sleep modes do not take the place of cleaning
and sanitizing. Federal, State, and local regulatory
agencies determine frequency of cleaning and
sanitizing.
3.10 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 machine performance that cannot be explained by a
technical problem may be related to the mix.
Proper product serving temperature varies from one
manufacturer’s mix to another. Mixes should provide a
satisfactory product in the 20°F to 24°F range. Diet and
low-carb mixes typically freeze to proper consistency at
higher temperatures.
When checking the temperature, stir the thermometer in
the frozen product to get an accurate reading.
Old mix, or mix that has been stored at too high a temperature, can result in a finished product that is unsatisfactory.
To retard bacteria growth in dairy based mixes, the best
storage temperature range is between 33° to 38°F (0.5°
to 3.3° C).
12
SECTION 4
MAINTENANCE AND ADJUSTMENTS
This section is intended to provide maintenance personnel
with a general understanding of the machine adjustments.
It is recommended that any adjustments in this section
be made by a qualified person.
The Current Status screen gives an overview of the
machine's operation. It shows the mode of the freezing
cylinders and the storage refrigeration. If there is an error,
the error text description replaces the status information.
4.1 ACCESSING CONTROL READINGS AND
SETTINGS
The Service Contact Information screen is accessed from
the Current Status screen. Move the cursor to the Service
Contact Information option and press the SEL button.
The readings and settings on the IntelliTec2 control are
accessed by using a keypad sequence. Press the left
arrow button from the Current Status screen to access
the passcode input screen.
B. Service Contact Information
The specific readings and parameters available depend
on the keypad sequence entered. The lowest level is
Associate and has limited access. The Manager level
has access to the majority of screens except Utilities (2
of 2). The Technician level has full access to the control
including the Associate and Manager level options.
Following are the keypad sequences for the three levels
available.
Associate
Press the right arrow then the SEL button.
Manager
Press the right arrow, up arrow then the
SEL button
Technician
Press the right arrow, SET, then the SEL
button
The Service Contact Information screen provides the
name and telephone number for service. The default is
Stoelting Technical Customer Service. The Manager and
Technician levels can change the default by selecting
the Modify Contact Information option or by uploading
the info.txt file.
C. Main Menu
4.2 NAVIGATION AND MODIFYING SETTINGS
Navigating through the IntelliTec2 screens is done with the
arrow keys on the touchpad. After positioning the cursor
on a desired menu, press the SEL button to select that
option. If the option is a setting, press the SET button to
change the value. Use the arrow keys to change the value.
Press the SET button to save the changes.
The SEL button changes the cylinder selection on screens
that show the cylinder.
Pressing the left arrow button from any menu will go back
one screen. Pressing the left arrow button at the Main
Menu screen goes to the Current Status screen.
The Main Menu screen provides access to all the readings
and settings on the IntelliTec2 control. To access the Main
Menu, use one of the keypad sequences from Section 4.1.
The example above shows the options available when
entering the Manager or Technician keypad sequence.
The Associate will only see the Fine Consistency Adjustment option.
4.3 USER INTERFACE SCREENS
A. Current Status
13
D. Fine Consistency Adjustment
B. Performance (2 of 2)
Product consistency can be adjusted by the Associate
level by using the Fine Consistency Adjustment screen.
Increasing the Fine Consistency number increases the
product consistency (firmer product).
The Consistency Limits show the Fine Consistency adjustment added to the Consistency number.
The Performance screens display the current status of
the machine. This screen shows the current ambient
temperature, storage temperature and number of cycles
since the Push to Freeze button was pressed or the spigot
was pulled. Press the left arrow to go to the first screen.
4.4 PERFORMANCE SCREENS
4.5 SETTINGS SCREENS
A. Performance (1 of 2)
A. Modify Operating Settings
The Performance screens display the current status of
the machine. These screens are available to the Manager
and Technician levels. Press the right arrow to go to the
second screen.
This menu provides access to view and change the different operating settings on the machine. The Manager and
Technician levels have access to these screens.
B. Basic Settings
Cylinder
The performance information displayed is for the selected
cylinder. To change cylinders press the SEL button.
Consistency*
This is the current consistency number of the selected
cylinder. The consistency number represents how thick
or thin the product in the freezing cylinder is. A higher
number means the product is thicker. Go to the Modify
Operating Settings menu to change the operating setting.
Cylinder Temperature
This is the current suction line temperature of the selected
cylinder.
This menu contains settings for the control style, CutIn
and CutOut, cycles in serve mode and auger cycle times.
This screen is available to the Technician level.
Motor Amps*
Cylinder can be changed by pressing the SEL button.
This is the current motor amps of the selected cylinder.
Input Voltage*
This is the current voltage of the selected cylinder.
* Only shown when the drive motor is running
14
The Enable Control setting determines the cutin and
cutout style. The options are Consistency-Consistency,
Temperature-Consistency or Temperature-Temperature.
D. Advanced Settings (2 of 2)
Setting the control to Consistency-Consistency enables
Serve 2 Mode (instead of Serve 1 Mode). Serve 2 Mode
extends the post stir to prevent short cycling the compressor and a possible misread of the consistency in the
freezing cylinder.
CutOut Consistency Offset is a number that represents
the point at which a freezing cycle will end in ConsistencyConsistency or Temperature-Consistency style. The
actual cutout value is the sum of this number, the Cutin
Consistency Offset and the Motor Zero Load numbers.
The Advanced Settings menu contains standby and sleep
mode adjustments and is available to the Manager and
Technician levels. Press the left arrow to go to the first
screen.
CutIn Consistency Offset is a number that represents
the point at which a freezing cycle will start in ConsistencyConsistency style. The actual cutout value is the sum of
this number and the Motor Zero Load number.
Sleep 2 CutIn is the temperature that a freezing cycle
starts in Sleep 2 Mode.
CutIn Temperature is the suction line temperature in the
cylinder when a freezing cycle will start in TemperatureConsistency or Temperature-Temperature style.
Sleep 2 CutOut is the temperature that a freezing cycle
stops in Sleep 2 Mode.
Default Off Time is the maximum time between freezing
cycles during Serve Mode or Serve 2 Mode.
CutOut Temperature is the suction line temperature in the
cylinder when a freezing cycle will stop in TemperatureTemperature style.
E. Storage Settings (1 of 2)
Cycles In Serve Mode is a count of the number of freezing cycles.
C. Advanced Settings (1 of 2)
This Storage Settings menu contains storage refrigeration
parameters and is available to the Technician level. Press
the right arrow to go to the second screen.
The Advanced Settings menu contains standby and
sleep mode adjustments and is available to the Manager
and Technician levels. Press the right arrow to go to the
second screen.
Storage Refrigeration can be set to Active or Suspend.
Active is the normal setting. Suspend is used only for
troubleshooting and setting an AXV. Never have refrigeration set to Suspend during normal operation.
Cylinder can be changed by pressing the SEL button.
Storage CutIn is the temperature at which the storage
refrigeration cycle starts. This is how warm it will get before
starting a storage freezing cycle.
The Standby On Time setting determines the length of
the freezing cycle in Standby Mode.
Storage CutOut is the temperature at which the storage
refrigeration cycle stops. This is how low the temperature
will get before ending the storage freezing cycle.
The Standby Off Time setting determines the length
between freezing cycles in Standby Mode.
The Standby Time setting determines the total amount
of time in Standby Mode.
The Storage Offset value is added to the storage temperature reading to determine if storage refrigeration
starts with a freezing cycle. This setting helps prevent
short cycling and saves energy.
Stir On is the amount of time that the auger rotates during
the stir cycle. Stir cycles occur in Serve Mode, Standby
Mode and Sleep 2 Mode.
The Storage Off setting determines the time between
storage refrigeration cycles during a sensor failure.
Stir Off is the amount of time between stir cycles. Stir
cycles occur in Serve Mode, Standby Mode and Sleep
2 Mode.
The Storage On setting determines the length of a storage refrigeration cycle during a sensor failure.
15
F. Storage Settings (2 of 2)
H. Time and Date
This Storage Settings menu contains storage refrigeration
parameters and is available to the Manager and Technician levels. Press the left arrow to go to the first screen.
The Time and Date menu shows the time and date settings. The Manager and Technician levels can change the
time and date by using the Modify Time and Date option.
The Storage Max On setting is the maximum time that
a storage refrigeration cycle will run.
The Storage Recovery setting is the minimum time
between storage refrigeration cycles if the Storage Max
On time ends the cycle.
The Storage Too Warm values are the temperature and
amount of time. When the temperature is above the set
temperature for the set period, the Storage too Warm
message will be displayed.
G. User Preferences
The User Preferences menu contains language options,
temperature units, service contact information and touchpad lockup. The screen is available to the Manager and
Technician levels.
4.6 UTILITIES SCREENS
The Utilities menu gives access for various settings and
operations in the control. The Utilities menu is available
to the Technician and Manager levels. The Manager level
will only have access to the first screen. The Technician
level has access to both screens.
The Language setting changes the language displayed.
English is the only language currently available.
The Temperature Units setting changes the units displayed to Fahrenheit or Celsius.
NOTE
The Service Contact Information option is used to change
the service contact details including service company
name and number and machine serial number.
Entering the Utilities (2 of 2) screen automatically
shuts off the freezing cylinders.
16
A. Product Selection
E. Clean Options
The Product Selection screen changes CutIn Consistency and CutOut Consistency to a predetermined value
depending on the product type.
The Clean Options Menu gives access to the Clean History Log and Clean Lockout options.
B. Adjust LCD Contrast
The Adjust LCD Contrast screen adjusts the contrast between the background lighting and the text on the screen.
C. Touchpad Lockup
The Clean History Log screen shows the date, time and
duration of the last 32 clean cycles.
The Touchpad Lockup is used to lock and unlock the
keypad for self service locations.
D. Export Machine Stats
The Clean Warning and Clean Lockout screens are
used to enable the clean warning mode or the clean
lockout mode. When one of the modes is enabled and
the machine is not cleaned within a specified period, the
machine will either display a warning (for warning mode)
or remain in sleep mode and not go into serve mode (for
lockout mode).
The Export Machine Stats screen allows you to export
all the data and statistics stored in the control. Connect
a USB flash drive to the port on the side of the machine
and select the yes option.
F. Testing and Manual Operation
17
The Testing and Manual Operation menu provides access
for individual components to be energized to assist with
troubleshooting. There are also test monitoring screens
that provide details of the machine status during testing.
Any energized component will deenergize after leaving
the Testing and Manual Operations menu.
G. Motor Calibration
The Motor Calibration screen is used when a motor is
replaced or the control firmware is updated. Move the
cursor to the correct option and press the SEL button to
calibrate the motor to the control.
H. Clear Error Log
Selecting Left or Right Output Control goes to a screen
that allows motors, solenoids or the compressor to be
individually activated. Activate by moving the cursor to
the desired component and press the SET button.
Selecting Left/Right Monitoring goes to screens that show
current statistics of the selected cylinder.
The Test Monitoring screens can be used for immediate
feedback when troubleshooting. For example the spigot
switch can be tested by opening the spigot and observing
if the status text changes from "Closed" to "Open".
The Clear Error Log screen will clear all the errors in
memory.
I. Clear Statistics
The Clear Statistics screen will clear all the statistics in
memory.
18
J. Restore Motor Table Defaults
B. Machine Statistics (2 of 10)
The Restore Motor Table Defaults screen allows you to
restore the motor defaults.
The Machine Statistics screen 2 of 10 shows the low mix
running time. This is the total time, including serve mode
and sleep mode, that the freezing cylinder was operating
with a low mix error. The screen shows a running total,
the total for the previous day and the total for the previous week.
4.7 ERRORS & STATISTICS SCREENS
C. Machine Statistics (3 of 10)
The Errors & Statistics menu gives the Technician access
to machine statistics and error history.
A. Machine Statistics (1 of 10)
The Machine Statistics screen 3 of 10 provides the time
and date that the freezing cylinder was last cleaned. This
value is recorded when the Clean button is pressed on
the touchpad. The screen also shows how long the most
recent clean mode lasted.
D. Machine Statistics (4 of 10)
The Machine Statistics screen 1 of 10 shows the time in
serve mode and time in sleep mode. The screen shows
a running total, the total for the previous day and the total
for the previous week for both statistics.
The Machine Statistics screen 4 of 10 shows the total time
that the spigot has been open during serve mode. The
screen shows a running total, the total for the previous
day and the total for the previous week. The screen also
shows the total times that the spigot has been opened.
19
E. Machine Statistics (5 of 10)
H. Machine Statistics (8 of 10)
The Machine Statistics screen 5 of 10 gives the estimated
serve amount of the freezing cylinder based on the time
the spigot is open during serve mode. The estimation is
also calculated for the previous day and the previous week.
The screen gives an option to reset the serve amount and
shows when the last reset was done.
The Machine Statistics screen 8 of 10 shows the total run
time for the pump and counts the total cycles. There is
an option to reset the timer and the screen shows when
the last reset was done. The reset should be used if the
pump is changed.
I. Machine Statistics (9 of 10)
F. Machine Statistics (6 of 10)
The Machine Statistics screen 9 of 10 shows the amount
of time the pump hose has been in use and when the
last reposition was completed. There is also an option to
reset the hose timer.
The Machine Statistics screen 6 of 10 shows the total
run time for the compressor and counts the total cycles.
There is an option to reset the timer and the screen shows
when the last reset was done. The reset should be used
if the compressor is changed.
NOTE
The hose timer must be reset each time the hose is
repositioned or replaced to keep an accurate record
of the hose service time.
G. Machine Statistics (7 of 10)
J. Machine Statistics (10 of 10)
The Machine Statistics screen 7 of 10 shows the total run
time for the drive motor and counts the total cycles. There
is an option to reset the timer and the screen shows when
the last reset was done. The reset should be used if the
drive motor is changed.
The Machine Statistics screen 10 of 10 shows when the
machine was last powered on. The screen also gives an
average power consumption per day.
20
B.
K. Error History
Connect the USB flash drive to the port on the
machine. Depending on the model, the USB port
will be located:
1. On the side of the machine. Remove the plug.
2. Behind the header panel. Remove the panel
and locate the USB connector on the display
module.
The Error History screen shows the last error that occurred.
The screen shows the type of error, the time and date and
the cylinder that had the error. Up to 25 errors are stored.
Press the up or down arrow to scroll through the errors.
Select the Status at Time of Error option to view data for
the time the error occurred. The Help option explains the
error and provides quick troubleshooting tips.
E.
Connect power to the machine. On a dual power
supply machine, only the left side needs to be
connected.
F.
The display should say "Stoelting Foodservice
Equipment" in a large font and the new firmware
version will be displayed at the bottom.
NOTE
If the display does not show the "Stoelting Foodservice Equipment" text, make sure the .rom file
is in the top level of the USB flash drive. The .rom
file cannot be in any folders within the flash drive.
L. Status at Time of Error
The Status at Time of Error screen gives data for the time
the error occurred.
G.
From the Current Status screen, press the left
arrow button to get to the passcode entry screen.
H.
Enter the technician password to the control by
pressing the right arrow, SET, then the SEL button.
I.
Navigate to the Utilities menu and select the Next
Utilities Menu.
J.
Go to the Reset Unit Configuration option and
press the SEL button.
K.
On the Reset Unit Configuration screen select
the Yes option and press the SEL button.
L.
Confirm the control settings are the same as the
values in the table below:
4.8 UPDATING FIRMWARE
Machine
Before starting, make sure there is liquid mix or water
in the freezing cylinder. The calibration steps cannot be
completed with frozen product in the freezing cylinders.
Firmware is contained in a .rom file which can be downloaded from the extranet website or sent via email. Download the .rom file onto the top level of a USB drive (don't
put the file in a folder and don’t change the name of the
file) and follow the instructions below..
F231-18
2
2
F231-38
2
2
F231-109
2
3
F231-309
2
3
Machine & Motor Types
NOTE
Updating firmware will not affect any parameter setting in the control. Any setting changes made prior
to changing the firmware will be retained. To reset all
settings, go to the Restore Factory Settings screen.
A.
Machine Type Motor Type
Unplug the machine from electrical power.
M.
Scroll the cursor down to the Accept option
and press the SEL button. The screen will read
“Restoring EEPROM”. This process takes about
three minutes.
N.
Once the control has completed this step, it will
automatically restart.
O.
Enter the technician password to the control by
pressing the right arrow, SET, then the SEL button.
P.
Navigate to the Utilities menu and select the Next
Utilities Menu.
NOTE
On a dual power supply machine, unplug both sides.
21
Q.
Go to the Motor Zero Load Calibration option and
press the SEL button.
NOTE
Calibration must be done with water or liquid mix
in the freezing cylinder. Do not try to calibrate with
frozen mix in the freezing cylinder.
R.
Tension
Adjustment
Nut
Press the SEL button to calibrate the motors for
both freezing cylinders.
NOTE
If the motors do not start, cycle the power and try
again.
S.
Press the left arrow to exit the Utilities menu and
go the Main Menu screen.
T.
Go to the Modify Settings screen, scroll to the
User Preferences option and press SEL at the
Service Contact Information screen.
U.
Figure 4-1 Belt Tension Adjustment
4.10 CONDENSER CLEANING (AIR-COOLED
MACHINES)
Scroll to the serial number and press the SET
button. Enter the serial number for the machine by
scrolling through the numbers. The serial number
is found on the information plate located on the
side or back of the machine. If the last digit is a
blank, scroll past the “z” for the blank space.
4.9
The F231 has an air-cooled or water-cooled condenser.
The air-cooled condenser is a copper tube and aluminum
fin type. Condensing is totally dependent upon airflow. A
plugged 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 machine must have a
minimum of 3” (7.6 cm) of ventilation on the sides of the
unit for free flow of air. Make sure the machine is not pulling
over 100° F (37° C) air from other equipment in the area.
DRIVE BELT TENSION ADJUSTMENT
To check belt tension, refer to Figure 4-4 and follow the
steps below:
The water-cooled condenser is a tube and shell type. The
condenser needs a cool, clean supply of water to properly
cool the machine, inlet and discharge lines must be 3/8”
I.D. minimum.
WARNING
Hazardous voltage
Make sure the machine is off when disassembling
for servicing. The machine must be disconnected
from electrical supply before removing any access
panel. Failure to disconnect power before servicing
could result in death or serious injury.
A.
Remove the back panel.
B.
Use a Burroughs Belt Tension Gauge to set the
tension for the drive belt. Set the belt tension to
35-40 lbs.
C.
D.
The air-cooled condenser requires periodic cleaning. To
clean, refer to the following procedures.
If an adjustment is necessary, loosen the four
motor plate retaining nuts, adjust belt tension
then retighten the four nuts.
A.
Visually inspect the condenser for dirt.
B.
If the condenser is dirty, place a wet towel over
the condenser.
C.
Using compressed air or CO2 tank, blow out the
dirt from the back of the condenser. Most of the
dirt will cling to the wet towel.
D.
An alternative method is to clean with a condenser
brush and vacuum.
NOTE
If the condenser is not kept clean, refrigeration efficiency will be lost.
Using a straightedge, check that the drive motor
pulley is aligned with the speed reducer pulley.
Align the pulley if necessary.
NOTE
Belt life will be increased if new drive belts are
tightened after two or three weeks of operation.
22
4.11
PREVENTATIVE MAINTENANCE
It is recommended that a preventative maintenance
schedule be followed to keep the machine clean and
operating properly. The following steps are suggested as
a preventative maintenance guide.
The United States department of agriculture and the food
and drug administration require that lubricants used in
food zones be certified for this use. Use lubricants only
in accordance with the manufacturer’s instructions.
A.
Daily checks
Check for any unusual noise or condition and
repair immediately.
B.
Monthly checks
Check the condenser for dirt and clean if
necessary.
C.
Quarterly Checks
Check drive belts for wear and tighten belts if
necessary.
4.12
EXTENDED STORAGE
Refer to the following steps for storage of the machine
over any long period of shutdown time:
A.
Clean all the parts that come in contact with mix
thoroughly with a warm detergent water. Rinse
in clear water and dry all parts. Do not sanitize.
NOTE
Do not let cleaning solution stand in the freezing
cylinder or hopper during the shutdown period.
B.
Remove, disassemble, and clean the front door,
and auger shaft. Leave disassembled during the
shutdown period.
C.
Place the auger flights and auger support bushing
in a plastic bag with a moist paper towel. This will
prevent them from becoming brittle if exposed to
dry air over an extended period of time (over 30
days).
23
24
SECTION 5
REFRIGERATION SYSTEM
NOTE
5.1 REFRIGERATION SYSTEM
The F231 refrigeration systems have two functions:
Medium-Temperature - Maintaining mix
temperature in the hopper.
Low-Temperature - Producing and maintaining
high quality product in the freezing cylinders.
The system is designed for efficient use with R404A
refrigerant. The proper charge is indicated on the information plate.
For qualified service personnel only. Anybody working with refrigerants must be certified as a Technician TYPE I as required by 40 CFR 82 Subpart F
and hold all State and/or local refrigerant handling
certifications. In addition, all handling, storage, and
disposal of refrigerants must be in accordance with
Environmental Protection Agency (EPA) guidelines
and standards and all State and local guidelines
and standards.
5.2 REFRIGERANT RECOVERY AND
EVACUATION
Refer to the following procedures to properly recover and
evacuate the refrigeration system. Do not purge refrigerant into the atmosphere.
WARNING
Hazardous voltage
Make sure the machine is off when disassembling
for servicing. The machine must be disconnected
from electrical supply before removing any access
panel. Failure to disconnect power before servicing
could result in death or serious injury.
*-./0
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Figure 5-1 Water Cooled Refrigeration System
25
A. REFRIGERANT RECOVERY
1.
Disconnect the machine from electrical supply
before removing any panels for servicing.
2.
Remove all panels.
3.
Connect the recovery unit to the suction and
discharge service valves of the compressor.
4.
Connect power to the machine.
5.
Turn the machine on by pressing the Main Power
Off/On button.
6.
Press the right arrow, SET, then the SEL button
to access the technician level on the control.
7.
Activate the Liquid Solenoid and the Refer
Solenoid on the left side and right side. Activating
the solenoids is done through the Left Output
Control and Right Output Control menus which are
located under Utilities in the Testing and Manual
Operation screen. Refer to Section 4 for details.
8.
Evacuate the system until the gauge reads 300
microns of mercury (300μ Hg) for 5 continuous
minutes.
10.
If the system will not maintain a standing vacuum
test with the vacuum pump off (gauge increases
towards atmosphere), find the leak, fix it, and
evacuate again.
11.
After evacuating is complete, deactivate the
solenoids by exiting the Testing and Manual
Operation screens.
5.3 REFRIGERANT CHARGING
Refer to the following procedures to properly charge
the refrigeration system. Stoelting recommends liquid
refrigerant charging.
NOTE
For qualified service personnel only. Anybody working with refrigerants must be certified as a Technician TYPE I as required by 40 CFR 82 Subpart F
and hold all State and/or local refrigerant handling
certifications. In addition, all handling, storage, and
disposal of refrigerants must be in accordance with
Environmental Protection Agency (EPA) guidelines
and standards and all State and local guidelines
and standards.
CAUTION
The solenoid valves must be energized to allow all
refrigerant to be recovered and to prevent injury
when brazing.
8.
9.
Operate the recovery unit per manufacturer’s
instructions
A.
Ensure the electrical supply has been removed
before continuing.
B.
If the system has been opened or if there was a
leak, refer to Section 5.2 - Refrigerant Recovery
and Evacuation to evacuate the system prior to
charging.
C.
Refer to machine’s information plate for total
charge requirements.
After recovery is complete, deactivate the
solenoids by exiting the Testing and Manual
Operation screens.
B. EVACUATING THE REFRIGERATION SYSTEM
1.
Close any open ports in the refrigeration system.
2.
Connect a vacuum gauge to one of the Schrader
valves next to an evaporator.
3.
Connect the evacuation unit to the suction and
discharge service valves of the compressor.
4.
Connect power to the machine.
5.
Turn the machine on by pressing the Main Power
Off/On button.
6.
Press the right arrow, SET, then the SEL button
to access the technician level on the control.
7.
Activate the Liquid Solenoid and the Refer
Solenoid on the left side and right side. Activating
the solenoids is done through the Left Output
Control and Right Output Control menus which are
located under Utilities in the Testing and Manual
Operation screen. Refer to Section 4 for details.
NOTE
The refrigeration systems of F231 is critically
charged. Be sure to charge the system to the weight
listed on the machine’s information plate.
26
D.
For liquid refrigerant charging, connect refrigerant
cylinder to the discharge Schrader valve of the
compressor.
E.
Energize all five solenoid valves. There are three
liquid line solenoids and two suction line solenoids.
F.
Add the proper amount of refrigerant according
to the machine’s information plate.
F.
5.4 COMPRESSOR
The F231 has a hermetic reciprocating compressor (Refer
to Figure 5-2).
To check if windings are shorted to ground, connect
one ohmmeter lead to a bare metal part on the
compressor (such as any copper line leading to
or from the compressor) and check terminals C,
R, and S.
NOTE
The compressor is equipped with an internal overload protector. If the compressor is warm and ohmmeter readings indicate an open winding, allow up
to one hour for overload to reset.
B. COMPRESSOR REMOVAL
A.
Disconnect the machine from electrical supply
before removing any panels for servicing.
B.
Remove the front panel.
C.
Remove the protective cover from the compressor
terminals and disconnect the wires.
D.
Recover refrigerant charge per the instructions
in Section 5.2.
E.
Leave the suction and discharge ports open to
prevent pressure buildup during compressor
removal.
F.
Remove six inches of insulating tubing on
the suction line going to the compressor and
unsweat the suction and discharge line from the
compressor.
G.
Remove the four nuts and washers from the base
of the compressor.
H.
Remove the compressor through the front of the
machine.
I.
Remove the four rubber compressor mounts from
the compressor.
J.
Crimp and braze all open ports of the old
compressor.
Figure 5-2 Compressor
A. WINDING TEST
To test the compressor motor windings for possible problems, perform the following steps:
A.
Disconnect the machine from electrical supply
WARNING
Hazardous voltage
Make sure the machine is off when disassembling
for servicing. The machine must be disconnected
from electrical supply before removing any access
panel. Failure to disconnect power before servicing
could result in death or serious injury.
NOTE
before removing any panels for servicing.
B.
Remove the front panel.
C.
Remove the protective cover from the compressor
terminals. Disconnect the three terminals; C
(common), R (run), and S (start).
D.
Connect an ohmmeter to the C and R terminals
on the compressor. Resistance through the run
winding should be 1.16±10%.
E.
A compressor returned to Stoelting with any open
ports will void the warranty. ALWAYS crimp and
braze ports on a compressor that has been removed.
C. COMPRESSOR INSTALLATION
Connect an ohmmeter to the C and S terminals
on the compressor. Resistance through the start
winding should be 3.10±10%.
27
A.
Make sure the machine is disconnected from the
electrical supply before removing any panels for
servicing.
B.
Install the four rubber mounts on the compressor.
C.
Install the compressor into the machine, fitting
the base over the four bolt holes.
D.
Install the four washers and nuts onto the bolts
and tighten securely.
E.
Remove all tubing plugs from the replacement
compressor.
TXV TESTING & ADJUSTMENT
NOTE
NOTE
The bulb has an indent which must be positioned
against the tubing. Good contact between the
bulb and the suction line is necessary for proper
operation of the valve. The bulb must also be well
insulated.
The compressor plugs protect the compressor from
moisture in the air. Do not remove the plugs until
you are ready to install. The compressor must not
be opened to the atmosphere for more than 10
minutes.
A.
Leave the suction and discharge ports open to
prevent pressure buildup. Braze the suction and
discharge line to the compressor.
Connect a gauge to the Schrader valve on the
suction line.
B.
Connect a thermocouple to the suction line next
to the evaporator.
G.
Connect the wires to the compressor terminals.
C.
H.
Replace the drier per the instructions in Section
5.9.
Immediately before the refrigeration cycle ends,
the gauge should read between 18-22 psig. The
superheat should be 7-10°F.
I.
Evacuate the system per the instructions in Section
5.2
D.
J.
Recharge the system per the instructions in
Section 5.3.
If the pressure reading is higher than expected
and the superheat is low, check to see if there is
an overcharge of refrigerant.
E.
If the pressure reading is lower than expected and
the superheat is high, check to see if there is a
low refrigerant charge or if there is a restriction
in the system.
F.
K.
Replace the insulating tubing on the suction line.
5.5 CONDENSER
NOTE
The F231 comes with either an air-cooled or a watercooled condenser. The capacity of the machine is directly
related to keeping the condenser clean and free of debris.
The TXV is the LAST component to adjust in the
refrigeration system.
The air-cooled condenser is a copper tube and aluminum
fin type. The machine must have a minimum of 3” of clearance on both sides for proper air flow.
F.
The TXV can be adjusted after the steps above are
completed. When adjusting, do not turn the valve
over 1/4 turn (90°). Turn the valve stem clockwise
to increase the superheat or counterclockwise to
decrease the superheat.
The water-cooled condenser is a tube and shell type. This
condenser requires cool, clean water to function properly.
Inlet and discharge lines must be 3/8” ID minimum.
TXV REMOVAL
CONDENSER TESTING
A.
Disconnect the machine from electrical supply
before removing any panels for servicing. Remove
the front panel.
B.
Recover refrigerant charge per instructions in
Section 5.2.
C.
Leave the suction and discharge ports open to
prevent pressure buildup during TXV removal.
D.
Remove any insulation from the TXV and
immediate surrounding lines.
E.
Apply a heat sink (wet cloth) to the valve dome
(Figure 5-4).
F.
Unsweat the TXV and remove.
The condenser can be checked for leaks using the bubble
test or using a leak detector.
5.6 VALVES
A. THERMOSTATIC EXPANSION VALVE (TXV)
The Thermostatic Expansion Valve (TXV) is used to meter
the refrigerant to the freezing cylinder evaporator. It does
so by maintaining a constant pressure in the evaporator.
The self-regulating TXV is preset by the manufacturer and
adjustment is not recommended. Figure 5-3.
Figure 5-3 TXV
Figure 5-4 TXV Removal
28
TXV REPLACEMENT
To replace the TXV, perform the following procedures:
A.
Position the TXV, with a heat sink, into the system.
B.
With the suction and discharge ports open, braze
the TXV into the system.
C.
Remove the heat sink from the TXV.
E.
Replace insulation to the TXV and surrounding
lines.
F.
Replace the drier per the instructions in Section
5.9.
G.
Evacuate the system per the instructions in Section
5.2.
H.
Recharge the system per the instructions in
Section 5.3.
Figure 5-6 High Pressure Cutout
B.
Disconnect cooling:
In a water-cooled machine, shut off the water
supply.
B. CHECK VALVE
The machine has 3 magnetic check valves (Refer to
Figure 5-5). Each valve is positioned in the suction line
and prevents backflow of refrigerant into the evaporator. If there is reversed flow, the product in the freezing
cylinder softens and liquid refrigerant can flood into the
compressor on startup.
In an air-cooled machine, shut off the fan motor
in the IntelliTec2 control. Refer to Section 4.6 for
details.
C.
If a check valve needs to be replaced, use a heat sink (wet
cloth) when installing the new valve to prevent damage.
High pressure cutout should trip when pressure
reaches 445 psig ±9.
HIGH PRESSURE CUTOUT REMOVAL
A.
Remove the left side panel.
B.
Recover refrigerant charge per instructions in
Section 5.2.
C.
Leave the suction and discharge ports open to
prevent pressure buildup during removal.
D.
Unsweat capillary tube from suction line.
E.
Disconnect terminals from high pressure cutout.
HIGH PRESSURE CUTOUT REPLACEMENT
Figure 5-5 Check Valve
C. HIGH PRESSURE CUTOUT
The high pressure cutout stops the compressor if the
discharge pressure reaches the cutout, 445 psig for the
freezing cylinders. It is an automatic reset when the pressure drops below 350 psig.
HIGH PRESSURE CUTOUT TEST
A.
Connect a gauge to the Schrader valve on the
discharge line.
29
A.
With the suction and discharge ports open, braze
the capillary tube to the discharge line.
C.
Replace the drier per the instructions in Section
5.9.
D.
Braze bulb into place on suction line.
E.
Evacuate the system per the instructions in Section
5.2.
F.
Recharge the system per the instructions in
Section 5.3.
G.
Connect the terminals to the high pressure cutout.
H.
Attach the high pressure cutout using the two
screws with star washers.
D. HOT GAS BYPASS
HOT GAS BYPASS REMOVAL
The hot gas bypass valve is installed parallel to the compressor and helps to regulate the compressor temperature
(Refer to Figure 5-7). When the cab evaporator is the only
part of the system requiring refrigerant, the bypass valve
will allow discharge gas to bypass into the suction line to
prevent liquid refrigerant from entering the compressor.
A.
Remove the left side panel.
B.
Recover refrigerant charge per instructions in
Section 5.2.
C.
Remove insulation around hot gas bypass and
tubing.
D.
Leave the suction and discharge ports open to
prevent pressure buildup during hot gas bypass
removal.
E.
Apply a heat sink (wet cloth) to the hot gas bypass.
F.
Unsweat the hot gas bypass and remove.
HOT GAS BYPASS REPLACEMENT
To replace the hot gas bypass, perform the following
procedures:
A.
Apply a heat sink (wet cloth) to the hot gas bypass.
B.
With an open port, braze the hot gas bypass into
the system.
C.
Remove the heat sink from the hot gas bypass.
D.
Replace the filter drier. Refer to Section 5.8 for
details.
E.
Evacuate and recharge system per instructions
in Section 5.2.
E. EVAPORATOR PRESSURE REGULATOR (EPR)
Figure 5-7 Hot Gas Bypass
There is one EPR in the refrigeration system (Refer to
Figure 5-8). It is located on the suction line of the hopper
evaporators and regulates evaporator refrigerant pressure.
HOT GAS BYPASS ADJUSTMENT
Adjustment to the hot gas bypass must be made when the
hopper refrigeration is the only part of the system running.
NOTE
Before adjusting the hot gas bypass, check the EPR
valve and adjust if necessary.
A.
Turn the machine off by pressing the Main Power
On/Off button.
B.
Connect a gauge to the Schrader valve on the
suction line next to the compressor.
Figure 5-8 EPR Valve
C.
Wait until the gauge stops moving.
D.
Unscrew the seal cap from the top of the valve.
EPR TEST AND ADJUSTMENT
E.
Using a 5/16” Allen wrench, adjust the valve
counterclockwise to decrease pressure and
clockwise to increase pressure.
Adjustment to the EPR must be made when the hopper
refrigeration is the only part of the system running
NOTE
Each 360° turn will change the pressure about 6
psig.
F.
Adjust the hot gas bypass valve to 14 psig ±1.
G.
Wait 2 minutes to ensure pressure remains stable.
H.
Hand-tighten seal cap to valve.
30
A.
Turn the machine off by pressing the Main Power
Off/On button.
B.
Connect a gauge to the Schrader valve on the
suction line between the hopper evaporators and
the EPR.
C.
Press the Main Power OFF/ON button to turn
the machine power on. Listen for the hopper
compressor to start.
D.
If the gauge does not read 60 ±2 then adjustment
is needed.
F.
Remove the plastic cap and loosen the locknut
on the EPR. Using a small screwdriver, turn the
adjustment screw counterclockwise 1/2 turn, then
adjust as necessary. Turn the valve stem clockwise
for higher pressure or counterclockwise for lower
pressure.
G.
The exit water temperature should be 95-107°F.
Allow the system to stabilize for 5 minutes to
ensure pressure remains stable.
E.
If the water temperature and high side pressure
are too low, the opening point pressure should
be increased to slow the water flow. Turn the
adjustment screw counterclockwise.
F.
If the water temperature and high side pressure
are too high, the opening point pressure should
be decreased to increase the flow of water. Turn
the adjustment screw clockwise.
WATER VALVE REMOVAL
EPR REMOVAL
The water valve is connected to the refrigeration system
by capillary tube brazed to the discharge line.
A.
Remove the left side panel and front panel.
B.
Recover refrigerant charge per instructions in
Section 5.2.
A.
Turn off and disconnect the water supply. Blow
out the water lines with compressed air or CO2.
C.
Leave the suction and discharge ports open to
prevent pressure buildup during EPR removal.
B.
Recover refrigerant charge per instructions in
Section 5.2.
D.
Unsweat the EPR and remove.
C.
Leave the suction and discharge ports open
to prevent pressure buildup during water valve
removal.
D.
Unsweat the capillary tube from the discharge
line.
E.
Remove the clamps from the water lines at the
valve.
Remove the two screws holding the water valve
to the frame and remove the valve.
EPR REPLACEMENT
To replace the EPR, perform the following procedures:
A.
Apply a heat sink (wet cloth) to the EPR.
B.
With an open port, braze the EPR into the system.
C.
Remove the heat sink from the hot gas bypass.
D.
Replace the filter drier. Refer to Section 5.8 for
details.
F.
E.
Evacuate and recharge system per instructions
in Section 5.2.
WATER VALVE REPLACEMENT
To replace the water valve, perform the following procedures:
F. WATER VALVE (WATER COOLED MODELS ONLY)
The water valve monitors refrigerant pressure and opens
on an increase of pressure. The opening point pressure
is the refrigerant pressure required to lift the valve disc
off the valve seat. (Figure 5-9)
A.
Position the water valve and attach to the frame
using the two screws.
B.
Install the water lines onto the valve with hose
clamps.
WATER VALVE ADJUSTMENT
C.
Leave the suction and discharge ports open
to prevent pressure buildup during water valve
installation.
D.
Braze the capillary tube into the system.
A.
Remove the right side panel.
B.
Connect a gauge to the compressor discharge
Schrader valve.
C.
Connect the machine to the electrical supply, start
the refrigeration cycle, and read the pressure.
E.
Connect the water supply line and turn on the
water supply.
D.
The proper gauge reading should be 225-235 psig.
F.
Check for leaks in the water lines. If there are no
leaks, turn off the water supply.
G.
Replace the filter drier. Refer to Section 5.8 for
details.
H.
Evacuate and recharge system per instructions
in Section 5.2.
I.
Turn on the water and check for leaks in the water
lines with the refrigeration system running.
J.
Adjust the valve as necessary.
Figure 5-9 Water Valve
31
5.7 SOLENOID
Solenoid valves are installed on the liquid and suction
lines of each freezing cylinder evaporator and on the liquid
line of the hopper evaporators (Refer to Figure 5-10 and
Figure 5-11). A solenoid valve has a magnetic coil that,
when energized, lifts a plunger and allows refrigerant to
flow. The solenoids are activated by the IntelliTec control
and determine which evaporator receives refrigeration.
The suction line solenoid prevents refrigerant flow in the
evaporator when the suction pressure drops due to the
operation of the other evaporators in the system.
Figure 5-10 Liquid Line Solenoid Valve
ACTIVATING A SOLENOID
To open a solenoid, follow these steps:
A.
Turn the machine on by pressing the Main Power
Off/On button.
B.
Press the right arrow, SET, then the SEL button
to access the technician level on the control.
C.
Navigate to the Left Output Control or Right Output
Control menu which is located under Utilities in
the Testing and Manual Operation screen. Refer
to Section 4 for details.
D.
Activate the solenoid by moving the cursor to
the Liquid Solenoid option and pressing the SET
button.
Figure 5-11 Suction Line Solenoid Valve
NOTE
F.
Any energized component will deenergize after
leaving the Testing and Manual Operations menu.
SUCTION LINE SOLENOID TESTING
If the pressure drops more than 3 psi in 30 seconds
on the side being tested, the suction line solenoid
valve seat leaks and should be replaced. Repeat
the procedure for the other side.
LIQUID LINE SOLENOID TESTING
To check for leaking valve seats, follow the procedure
outlined below. The liquid line solenoid must remain open
for this test.
The following test will check if a liquid line solenoid has
a leaking valve seat. The power to the solenoid is disconnected and refrigerant flow is monitored through the
system. If the valve seat does not leak, the suction pressure during the test will be low.
NOTE
Machine barrels must NOT contain frozen product
for this test.
A.
A.
Turn the machine off by pressing the Main Power
On/Off button.
Attach a gauge to the Schrader valve on the
suction line.
B.
B.
Attach a gauge to the Schrader valve located
after the evaporator of the side being tested.
Turn the machine on by pressing the Main Power
Off/On button.
C.
C.
Turn the machine on by pressing the Main Power
Off/On button.
Press the right arrow, SET, then the SEL button
to access the technician level on the control.
D.
D.
Turn the opposite side Freezing Cylinder on by
pressing the On/Off Left or On/Off Right button.
Navigate to the Left Output Control or Right Output
Control menu which is located under Utilities in
the Testing and Manual Operation screen. Refer
to Section 4 for details.
E.
Activate the compressor by moving the cursor
to the compressor option and pressing the SET
button.
F.
The gauge should read well below 21 psig after
1 minute.
G.
A leaking valve seat may also show frost on the
liquid line tubing just past the solenoid and before
the evaporator.
NOTE
If checking the solenoid on the left side, press the
On/Off Right button. For the right side, press the
On/Off Left button.
E.
Start a freezing cycle of the opposite side by
pressing the Push To Freeze button or by pulling
the spigot handle.
32
SOLENOID MAGNETIC COIL REMOVAL
5.8 FILTER DRIER
A.
Remove the side panel.
B.
Disconnect the electrical wires.
C.
Remove the retainer screw from the top of the
solenoid and pull the magnetic coil off.
The filter drier must be replaced every time the refrigeration
system is opened for service. A new filter drier improves
operation of the entire refrigeration system by stopping
the circulation of moisture and by removing harmful contaminants (Refer to Figure 5-12).
SOLENOID MAGNETIC COIL INSTALLATION
To replace the magnetic coil, perform the following procedures:
A.
Connect the two electrical wires to the magnetic
coil.
B.
Push the coil on to the solenoid valve stem.
C.
Make sure there isn’t any foam insulation between
the valve coil and valve body. Trim any excess
insulation.
D.
Install retainer screw onto top of coil.
Figure 5-12 Filter Drier
SOLENOID VALVE REMOVAL
FILTER DRIER REMOVAL
A.
Identify and disconnect the two wires from the
solenoid coil.
A.
B.
Remove the retainer holding the coil to the solenoid
body and remove the coil.
Recover refrigerant charge per instructions in
Section 5.2.
B.
C.
Recover refrigerant charge per instructions in
Section 5.2.
Cut the refrigeration line as close to the filter drier
as possible and remove drier.
C.
D.
Remove insulation around valve and attached
refrigeration lines.
Cap the ends of the drier using the plugs from
the new drier.
E.
Apply heat sinks (wet cloth) to the insulated
refrigerant lines near the valve.
F.
Leave a port open to prevent pressure buildup
during solenoid removal
G.
Unsweat the solenoid and remove.
NOTE
The drier must be capped to prevent moisture from
the environment
FILTER DRIER REPLACEMENT
A.
Position the filter drier so the arrow is pointing
toward the direction of refrigerant flow (pointing
away from the condenser).
To replace the solenoid, perform the following procedures:
B.
Apply a heat sink (wet cloth) to the filter drier.
A.
Position the new solenoid with the arrow pointing
toward the direction of refrigerant flow.
C.
With the suction and discharge ports open, braze
the filter drier into the system.
B.
Apply a heat sink (wet cloth) to the solenoid valve.
D.
C.
With the suction and discharge ports open, braze
the solenoid into the system.
Evacuate the system per instructions in Section
5.2.
E.
Recharge the system per instructions in Section
5.3.
SOLENOID VALVE REPLACEMENT
D.
Remove the heat sink from the valve.
E.
Replace insulation around valve.
F.
Replace the filter drier. Refer to Section 5.8 for
details.
G.
Evacuate and recharge system per instructions
in Section 5.2.
33
5.9 CAPILLARY TUBE
The capillary tube meters refrigerant flow in the mix line
evaporator (Refer to Figure 5-13). The amount of flow is
dependent on the length and ID of the capillary tube as
well as the refrigerant charge.
Figure 5-13 Capillary Tube and Drier Assembly
CAPILLARY TUBE REMOVAL
NOTE
The capillary tube assembly contains a drier. The
entire assembly must be removed.
A.
Recover refrigerant charge per instructions in
Section 5.2.
B.
Leave a port open to prevent pressure buildup
during capillary tube removal.
C.
Remove foam insulation from the capillary tube
at the evaporator inlet.
C.
Unsweat the capillary tube and remove.
CAPILLARY TUBE REPLACEMENT
A.
Position the capillary tube in the refrigeration
system.
B.
Apply a heat sink (wet cloth) to the capillary tube
and drier assembly.
C.
With the suction and discharge ports open, braze
the capillary tube into the system.
D..
Replace foam insulation to the capillary tube at
the evaporator inlet.
E.
Evacuate the system per instructions in Section
5.2.
F.
Recharge the system per instructions in Section
5.3.
34
SECTION 6
ELECTRICAL AND MECHANICAL CONTROL SYSTEMS
NOTE
The wiring diagram is available in Section 8.
6.1
INTELLITEC2 CONTROL
The IntelliTec2 control consists of three main components;
a control board, a display board and a membrane switch
(touchpad).
The control board is modular and consists of a program
board and a relay board. The two boards make it easy to
service and replace. The boards are connected by two
screws.
6.2
CONTACTORS
The F231 has a total of three contactors. One for the compressor and one for each drive motor. The contactors are
located in the electrical box behind the right side panel.
The IntelliTec2 control sends electronic signals to trigger
the contactors. Separate signals are used to control each
drive motor contactor and the compressor contactor. The
signals to the contactors are staggered, so the drive motor
will always start three seconds before the compressor. By
staggering the starting and stopping of the drive motor,
maximum starting torque is available and voltage spikes
are reduced.
A. CONTACTOR TESTS
The following tests will show if a contactor is working
properly.
Figure 6-2 Display Board
1.
Listen for the contactor to close. When the spigot
is opened or the Push To Freeze button is pressed,
the drive motor contactor will close. After three
seconds, the compressor contactor will close.
2.
Check to ensure contactor is receiving signal.
Read voltage across the coils of the contactor
during a freezing cycle. Voltage should be about
230V. If there is no voltage reading, refer to Section
7 Troubleshooting.
Figure 6-1 IntelliTec2 Control Board
35
6.3
DRIVE MOTOR
The F231 has two drive motors. They are used to rotate
the auger assemblies. An internal, normally closed, centrifugal switch starts the drive motor. The motors have an
internal thermal overload.
A. DRIVE MOTOR TEST
1.
Turn the machine off by pressing the Main Power
Off/On button and disconnect the machine from
the electrical supply.
Tension
Adjustment
Nut
WARNING
Hazardous voltage
Make sure the machine is off when disassembling
for servicing. The machine must be disconnected
from electrical supply before removing any access
panel. Failure to disconnect power before servicing
could result in death or serious injury.
Figure 6-3 Belt Tension Adjustment
B. DRIVE MOTOR REMOVAL
1.
Disconnect machine from electrical supply before
removing any panels for servicing.
2.
Remove the back panel and the side panel.
3.
Remove the electrical cover plate from the back
of the motor.
Turn the machine on by pressing the Main Power
Off/On button.
4.
Identify (mark) wires and remove them from the
motor.
6.
Press the right arrow, SET, then the SEL button
to access the technician level on the control.
5.
Loosen the belt tension adjustment bolt and
remove the belt. (Refer to Figure 6-3)
7.
Activate the drive motor through the Left Output
Control or Right Output Control menus which are
located under Utilities in the Testing and Manual
Operation screen. Refer to Section 4 for details.
7.
Remove the motor mounting bolts.
8.
Loosen the two allen head screws from the pulley.
9.
Remove the pulley and key from the motor shaft.
Go to the Test Monitoring screen under Utilities.
The motor current should be as follows:
C. DRIVE MOTOR INSTALLATION
2.
Remove the back panel and a side panel.
3.
Loosen the belt tension adjustment nut and remove
the belt.
4.
Connect power to the machine.
5.
8.
1.
Place the drive motor in position and install the
four mounting bolts.
2.
Place the pulley and key on the motor shaft.
Single Phase Machines: 6.1-6.3 Amps
Three Phase Machines: 4.0-4.2 Amps
NOTE
NOTE
The motor amps are based on 230VAC supply
voltage.
Do not tighten the pulley screws until after the belt
tension has been properly adjusted.
3.
Install the belt and tighten the tension adjustment
bolt.
4.
Use a Burroughs Belt Tension Gauge to set the
tension for the drive belt. Set the belt tension to
35-40 lbs.
Use a Burroughs Belt Tension Gauge to set the
tension for the drive belt. Set the belt tension to
35-40 lbs.
5.
Using a straightedge, align the drive motor pulley
with the gearbox pulley. Tighten the two allen
head screws.
Using a straightedge, align the drive motor pulley
with the gearbox pulley. Tighten the two allen
head screws.
6.
Install wiring according to wiring diagram (located
behind the left side panel). Install electrical cover
plate on the motor.
7.
Install back and side panels.
9.
After the test, stop the motor by exiting the Testing
and Manual Operation section. Turn the machine
off and disconnect from the electrical supply.
10.
Install the belt and tighten the tension bolt.
11.
12.
36
4.
Pull the capacitor out of its holder and replace.
The compressor start and run capacitors are only on single
phase machines. They are accessible by removing the
right side panel.
5.
Connect the leads to the terminals of the new
capacitor.
The start and run capacitors for the drive motors are
mounted directly onto each motor body.
6.5
GEARBOX
A. CAPACITOR TEST
Inspect the gearbox and listen for unusual noise. A grinding sound generally indicates a bad gear.
6.4
1.
CAPACITORS
A. GEARBOX INSPECTION
Disconnect machine from electrical supply before
removing any panels for servicing.
B. GEARBOX REMOVAL
1.
Disconnect machine from electrical supply before
removing any panels for servicing.
2.
Remove the back panel and the side panel.
3.
Remove the four nuts holding the support bracket
and remove the bracket.
4.
Remove the belts.
5.
Remove the bolts while holding the gearbox
assembly and remove it.
WARNING
Hazardous voltage
Make sure the machine is off when disassembling
for servicing. The machine must be disconnected
from electrical supply before removing any access
panel. Failure to disconnect power before servicing
could result in death or serious injury.
C. GEARBOX INSTALLATION
2.
Remove a lead from one of the capacitor terminals.
3.
Using insulated pliers, discharge the capacitor
by connecting a 20K 5W resistor across the
terminals.
1.
Place the gearbox in position from the rear of the
machine. Fasten the bolts through the gearbox
to the rear of the barrel.
2.
Mount the pulley on the gearbox shaft and align
with the motor pulley, then tighten the allen head
screws.
3.
Install the belt.
4.
Use a Burroughs Belt Tension Gauge to set the
tension for the drive belt. Set the belt tension to
35-40 lbs.
5.
Using a straightedge, align the drive motor pulley
with the gearbox pulley. Tighten the two allen
head screws.
6.
Install the support bracket to the gearbox.
NOTE
Discharge the capacitor even if there is a bleeder
resistor across the terminals. There may be an open
in the bleeder resistor preventing it from working
properly.
4.
Disconnect the bleeder resistor from the circuit.
5.
Measure the capacitance across the terminals.
The results should be as follows:
Rating
Part
MFD
VAC
Drive Motor Start
231095
500 MFD
125 VAC
Drive Motor Run
231078
50 MFD
370 VAC
Compressor Start
231079
145-174 MFD
220 VAC
Compressor Start
230649
130-156 MFD
250 VAC
Compressor Run
231084
30 MFD
370 VAC
Compressor Run
230633
30 MFD
370 VAC
6.6
CONDENSER FAN MOTOR (AIRCOOLED ONLY)
A. FAN MOTOR REPLACEMENT
B. CAPACITOR REPLACEMENT
1.
Disconnect machine from electrical supply before
removing any panels for servicing.
2.
Remove leads from the capacitor terminals.
3.
Using insulated pliers, discharge the capacitor
with a 20K 5W resistor across the terminals.
NOTE
Discharge the capacitor even if there is a bleeder
resistor across the terminals. There may be an open
in the bleeder resistor preventing it from working
properly.
37
1.
Disconnect machine from electrical supply before
removing any panels for servicing.
2.
Remove a side panel and the header panel.
3.
Trace and disconnect the black and white wires
on the fan motor.
4.
Loosen the set screw on the fan blade.
5.
Remove the bolts from the fan motor mounting
plate and remove the motor.
NC
COM
Spigot Glide
Figure 6-5 Spigot Cam Assembly (Center Spigot)
SPIGOT SWITCH TEST - ADJUSTMENT
NOTE
Figure 6-4 Air Cooled Condenser
Adjustments to the spigot switch should be done
after the product is at consistency in “Serve Mode”
or when the machine is empty.
B. FAN MOTOR INSTALLATION
1.
Attach motor to the mounting plate with the three
bolts.
2.
Place fan blade on motor shaft. Make sure the
motor shaft does not extend past the hub of the
fan blade. Tighten the set screw.
1.
Open the spigot slowly and listen for a click when
the spigot switch closes.
2.
The clicking sound should be within the first 1/2”
of the spigot glide movement (Refer to Figure
6-5). If the switch does not close, an adjustment
may be necessary.
NOTE
The fan blades must be at least 3/8” from the fins
on the condenser.
3.
Ensure purple wire is terminated.
4.
Ensure red wire is terminated with blue wire.
5.
Route the white and black wires through the side
panel to the compressor contactor.
6.
Connect black wire to the T1 terminal.
7.
Connect white wire to the T2 terminal.
6.7
SPIGOT SWITCH
NOTE
The center spigot has two switches; one for each
side. When testing the center spigot, there should
be two audible clicks occurring almost simultaneously.
SPIGOT SWITCH TESTING - ELECTRICAL
The spigot switch is a normally closed, held open switch.
When a spigot is pulled, the spigot switch sends a signal
to the IntelliTec2 control to start the auger drive and refrigeration system. This signal moves the control to “Serve
Mode”, or if it already is in “Serve Mode”, it resets the
cycle count. After serving product, the IntelliTec2 continues
a freezing cycle until the product reaches consistency.
1.
Disconnect the switch from the circuit by
unplugging the connectors.
2.
Check resistance readings across the common
(COM) and normally closed (NC) terminals. When
the spigot is closed, the resistance should show
an open. When the spigot is opened, the switch
will close and the resistance should be 0 ohms.
SPIGOT SWITCH ADJUSTMENT
38
1.
Turn the machine off by pressing the Main Power
On/Off button.
2.
Remove the header panel.
3.
Loosen the bolts on the spigot switch.
4.
Using a pencil, mark the spigot glide 1/4” from
the spigot housing.
5.
Adjust the switch to activate when the plastic glide
reaches the mark.
6.
Fully tighten the retaining bolts and remove mark
from spigot glide.
6.8
TEMPERATURE CONTROL SENSOR
The temperature control sensor is a thermistor used to
sense the temperature of the suction line. As the suction
line temperature increases, the internal resistance of
the thermistor will decrease. Refer to Figure 6-7 for the
relationship between sensor resistance and temperature.
The IntelliTec control board monitors this value. In “Serve
Mode”, when the temperature of the sensor equals the
Cut In T value on the control, a freezing cycle will start.
When troubleshooting a sensor, refer to the wiring diagram
and remove the wires from the control board. Measure
the resistance of the sensor and compare it with the table
below. If the resistance is not within this range, replace it.
Figure 6-6 Spigot Switch Replacement
SPIGOT SWITCH REPLACEMENT
1.
Remove the header panel.
2.
Remove the dispense rate adjuster knob located
below the header panel. (Refer to Figure 6-6)
3.
Remove the two Phillips head screws that attach
the spigot cam assembly to the panel. Remove
the assembly.
°F
Resistance
°F
Resistance
-22
176950
40
26100
-20
165200
42
24725
-18
154300
44
23400
-16
144200
46
22175
-14
134825
48
21000
-12
126125
50
19900
-10
118050
52
18875
-8
110550
54
17900
4.
Disconnect the connector from the switch and
remove the switch..
-6
103550
56
17000
-4
97075
58
16125
5.
Install the replacement switch onto the handle
assembly. Do not fully tighten the retaining screws
at this time.
-2
91025
60
15325
0
85400
62
14550
2
80150
64
13825
Using a pencil, mark the spigot glide 1/4” from
the spigot housing. Adjust the switch to activate
when the spigot handle moves the glide to the
mark.
4
75275
66
13150
6
70725
68
12500
8
66475
70
11875
10
62500
72
11300
7.
Fully tighten the retaining screws.
12
58800
74
10750
8.
Attach the connector to the spigot switch.
14
55325
76
10250
9.
Position the spigot handle assembly in the
electrical box and fasten securely with the two
Phillips head screws.
16
52100
78
9750
18
49075
80
9300
20
46250
82
8850
Replace the dispense rate adjuster knob and
tighten.
22
43600
84
8450
24
41125
86
8050
Replace the header panel and secure with the
two Phillips head screws.
26
38800
88
7675
28
36625
90
7325
30
34575
92
7000
32
32675
94
6675
34
30875
96
6375
36
29175
98
6100
38
27600
100
5825
6.
10.
11.
Figure 6-7 Temperature Sensor Resistance
(10K Ohms)
39
40
SECTION 7
TROUBLESHOOTING
Ice crystals in the hopper can clog the mix
inlet regulator and prevent mix from entering
the freezing cylinder. Thoroughly thaw mix per
manufacturer's recommendations. To check for
ice crystals, pour a small amount of product from
the hopper through a clean and sanitized sieve
or strainer. If ice crystals are in the mix, check
the temperature of the walk-in cooler where the
mix is stored or the temperature of the machine’s
hopper. If the hopper is below 34°F (1°C), adjust
the temperature by raising the Storage Cutout
value in the Storage Settings menu.
7.1 ERROR CODES
When the machine experiences a problem, one of the
following error codes will be displayed on the control
panel. Each error code directs you to the system location
of the malfunction.
ERROR CODE MALFUNCTION
2
High Torque
3
Run Time
4
Clean
5
Freezing Cylinder Sensor
6
Hopper Sensor (single hopper machines)
7
Drive Motor
8
Cab Sensor
9
High Pressure Cutout
10
Ambient Sensor
11
Prime (cab units only)
12
Left Storage Sensor
13
Right Storage Sensor
The Run Time Error may also occur if airflow within
the machine has reduced or stopped. Check the
sides and top of the machine for anything that
would restrict airflow. Check the condenser filter
and clean if necessary. Check the evaporator for
frost that could restrict airflow.
The compressor will run continuously if a solenoid
valve fails to open. This could be due to loose
wiring, magnetic coil failure, a stuck valve or a
faulty control board.
After the cause of the problem is found and
remedied press the On/Off button for the cylinder
to turn it off then back on.
To return the machine to normal operation, any error causing condition must be corrected and the freezing cylinder
must be turned off and on again using the On/Off Left or
On/Off Right button.
ERROR CODE 4 - CLEAN
If the machine is left in the Clean Mode for more
than 20 minutes, the control panel will display a
Clean Error (04). This condition does not reflect a
problem with the machine itself. The Clean Error
has been programmed into the controller as a
safeguard to protect the machine from potential
damage caused by the machine being accidentally
left in "Clean Mode". To clear the Clean Error,
press the On/Off button for the cylinder to turn it
off then back on.
7.2 TROUBLESHOOTING
ERROR CODE 2 - HIGH TORQUE
If the control panel displays a High Torque Error
(E2), the drive motor is running at a high load for
10 or more seconds. Very low and/or fluctuating
supply voltages typically cause this error. The error
can also be caused by faulty motor or starting
components which could produce a high amp
draw.
ERROR CODE 3 - RUN TIME
The Run Time Error (E3) occurs when the
compressor runs continuously for an extended
period. This error could happen if the cutout
parameter is not attained. This error is generally
caused by very low mix levels in the hopper or
from product breakdown. Another common cause
results from a restriction preventing mix from
entering the freezing cylinder. Check the mix on
the affected freezing cylinder. If the level mix is
low, add mix. If there is a possibility that the mix
is broken down, clean and sanitize the machine
and replace the mix with fresh product.
41
ERROR CODE 5 - FREEZING CYLINDER SENSOR
ERROR CODE 6 - HOPPER SENSOR
The Freezing Cylinder Sensor Error (E5) indicates
a failure of the barrel sensor or if the sensor is
out of range. If the control panel displays an E5,
press the On/Off button for the cylinder to turn it off
then back on. If the control panel still displays the
error code, refer to the machine's wiring diagram
and the Temperature Sensor Chart (Figure 7-1).
Check each lead of the sensor to ground for
continuity. If continuity is found, replace the sensor.
To check the resistance of the sensor, place a
thermocouple on the suction line at the exit of
the freezing cylinder. Compare temperature and
sensor resistance with the table as reference. If
measured value does not coincide with a value
on the table (± 500 ohms), replace the sensor.
The Hopper Sensor Error (E6) will not occur on
the F231.
ERROR CODE 7 - DRIVE MOTOR
If the control panel displays a Drive Motor Error
(E7), the control does not sense the drive motor.
Press the On/Off button for the cylinder to turn
it off then back on. If the error returns, use the
machine's wiring diagram and check connections
at the IntelliTec control and at the motor. An E7
may also be the result of a faulty drive motor
contactor.
ERROR CODE 8 - CAB SENSOR
A Cab Sensor Error (E8) will not occur on the
F231.
NOTE
ERROR CODE 9 - HIGH PRESSURE CUTOUT
When the machine encounters a Freezing Cylinder
Sensor Error, the machine will continue to run using
preset timers. This mode will allow the operator to
continue serving product until the machine can be
serviced.
°F
Resistance
°F
Resistance
-22
176950
40
26100
-20
165200
42
24725
-18
154300
44
23400
-16
144200
46
22175
-14
134825
48
21000
-12
126125
50
19900
-10
118050
52
18875
-8
110550
54
17900
-6
103550
56
17000
-4
97075
58
16125
-2
91025
60
15325
0
85400
62
14550
2
80150
64
13825
4
75275
66
13150
6
70725
68
12500
8
66475
70
11875
10
62500
72
11300
12
58800
74
10750
14
55325
76
10250
16
52100
78
9750
18
49075
80
9300
20
46250
82
8850
22
43600
84
8450
24
41125
86
8050
26
38800
88
7675
28
36625
90
7325
30
34575
92
7000
32
32675
94
6675
34
30875
96
6375
36
29175
98
6100
38
27600
100
5825
High Pressure Cutout Errors (E9) are usually
caused by a dirty or inefficient condenser. If the
control panel displays an E9, press the On/Off
button for the cylinder to turn it off. Wait for 8-10
minutes for the machine pressures stabilize and
an the internal timer to expire then press the On/
Off button for the cylinder to turn it back on.
In air cooled condenser models, check the air
filter to make sure it is clean. Replace or clean the
filter as required. Check for proper air clearance
around the machine. Refer to the machine's
Owner's Manual for clearances. Check the
condenser for blockage, and be sure condenser
fan is functioning.
On water cooled condenser models, check for
proper water flow through the condenser coil.
After the cause of the error is determined and
corrected, press the On/Off button for the cylinder
to turn it off then back on.
ERROR CODE 10 - AMBIENT SENSOR
The Ambient Temperature Sensor Error (E10)
indicates a failure of the condenser air inlet
temperature sensor or if the sensor is out of
range. If the control panel displays an E10, press
the On/Off button for the cylinder to turn it off
then back on. If the control panel still displays
the error condition code, refer to the machine's
wiring diagram and the Temperature Sensor Chart
(Figure 7-1). Check each lead of the sensor to
ground for continuity. If continuity is found, replace
the sensor. To check the resistance of the sensor,
place a thermocouple on the suction line at the
exit of the freezing cylinder. Compare temperature
and sensor resistance with the table as reference.
If measured value does not coincide with a value
on the table (± 400 ohms), replace the sensor.
Figure 7-1 Temperature Sensor Resistance
(10K Ohms)
42
ERROR CODE 11 - PRIME
The Prime Error (E11) will not occur on the F231.
ERROR CODE 12 - LEFT HOPPER SENSOR
The Left Hopper Sensor Error (E12) indicates
a failure of the hopper sensor or if the sensor is
out of range. If the control panel displays an E12,
press the On/Off button for the cylinder to turn it
off then back on. If the control panel still displays
the error condition code, refer to the machine's
wiring diagram and the Temperature Sensor Chart
(Figure 4-1). Check each lead of the sensor to
ground for continuity. If continuity is found, replace
the sensor. To check the resistance of the sensor,
place a thermocouple on the suction line at the
exit of the freezing cylinder. Compare temperature
and sensor resistance with the table as reference.
If measured value does not coincide with a value
on the table (± 400 ohms), replace the sensor.
ERROR CODE 13 - RIGHT HOPPER SENSOR
The Right Hopper Sensor Error (E13) indicates
a failure of the hopper sensor or if the sensor is
out of range. If the control panel displays an E13,
press the On/Off button for the cylinder to turn it
off then back on. If the control panel still displays
the error condition code, refer to the machine's
wiring diagram and the Temperature Sensor Chart
(Figure 4-1). Check each lead of the sensor to
ground for continuity. If continuity is found, replace
the sensor. To check the resistance of the sensor,
place a thermocouple on the suction line at the
exit of the freezing cylinder. Compare temperature
and sensor resistance with the table as reference.
If measured value does not coincide with a value
on the table (± 400 ohms), replace the sensor.
43
7.3 TROUBLESHOOTING - MACHINE
PROBLEM
Machine does not
run.
Machine will not
shut off.
Product is too firm.
POSSIBLE CAUSE
REMEDY
1 Power to machine is off.
1 Supply power to machine.
2 Freeze-up (auger will not turn).
2 Turn Clean/Off/On switch Off for 15 minutes,
then restart.
3 Front door not in place.
3 Assemble front door in place.
1 Drive belt failure.
1 Replace drive belt.
2 Consistency temperature setting is too 2 Turn Consistency Adjustment knob counterfirm.
clockwise.
3 Refrigeration problem.
3 Check system. (Call distributor for service)
1 CutOut Consistency setting too high
1 Adjust the CutOut Consistency (See Section 3)
1 No vent space for free flow of cooling 1 A minimum of 3” of air space at the back. (See
air.
Section 2)
Product is too soft.
Product does not
dispense.
2 Condenser is dirty.
2 Clean the condenser. (See Section 3)
3 CutOut Consistency setting too low
3 Adjust the CutOut Consistency (See Section 3)
4 Auger is assembled incorrectly.
4 Remove mix, clean, reassemble, sanitize and
freeze down.
5 Refrigeration problem.
5 Check system. (Call distributor for service)
1 No mix in hopper.
1 Add mix to the hopper.
2 Drive motor overload tripped.
2 Wait for automatic reset. (If condition
continues, call distributor for service.)
3 Drive belt failure.
3 Replace drive belt.
4 Freeze-up (Auger will not turn).
4 Turn off cylinder, wait for 15 minutes, then
restart.
1 Worn drive belt.
1 Replace drive belt.
Drive belt slipping 2 Freeze-up (Auger will not turn).
or squealing.
Rear auger seal
leaks.
Front door leaks.
2 Turn off cylinder, wait for 15 minutes, then
restart.
3 Not tensioned properly.
3 Adjust belt tension
1 Outside surface of rear auger seal is
lubricated.
1 Clean lubricant from outside of rear seal,
lubricate inside of seal and reinstall.
2 Rear seal missing or damaged.
2 Check or replace.
3 Seal o-ring missing, damaged or
installed incorrectly.
3 Check or replace.
4 Worn or scratched auger shaft.
4 Replace auger shaft.
1 Front door knobs are loose.
1 Tighten knobs.
2 Spigot parts are not lubricated.
2 See Section 3.
3 Chipped or worn spigot o-rings.
3 Replace o-rings.
4 O-rings or spigot installed wrong.
4 Remove spigot and check o-ring.
5 Inner spigot hole in front door nicked
or scratched.
5 Replace front door.
44
SECTION 8
REPLACEMENT PARTS
8.1 DECALS AND LUBRICATION
Part
208135
208380
208401
208467
236059
244138
244139
324065
324103
324105
324106
324107
324125
324141
324208
324509
324566
324584
324594
324686
324803
324908
324909
508048
508135
513658
1159501
Description
Brush - 4” X 8” X 16” (Barrel)
Brush - 1/4” X 3” X 14”
Brush - 1” X 3” X 10”
Brush - 3/8” X 1” X 5”
Card - Cleaning Instructions
Caster - Non-Locking (4”) (Each)
Caster - Locking (4”) (Each)
Decal - Water Inlet
Decal - Caution Rotating Shaft
Decal - Caution Electrical Shock
Decal - Caution Electrical Wiring Materials
Decal - Caution Hazardous Moving Parts
Decal - Danger Electric Shock Hazard
Decal - Caution Rotating Blades
Decal - Attention Refrigerant Leak Check
Decal - Cleaning Instructions
Decal - Wired According To
Decal - Adequate Ventilation 3”
Decal - Attention Heat Sensitive
Decal - Danger Automatic Start
Decal - Domed Stoelting Logo (Large) (Header Panel)
Decal - Rear Light
Decal - USB Port
Lubricant - Spline (2 oz Squeeze Tube)
Petrol Gel - 4 oz Tube
Manual - Owner’s
O-Ring & Bushing Kit
Quantity
1
1
1
1
1
2
2
1
1
1
1
1
1
1
1
1
1
3
4
1
1
2
1
1
1
1
1
8.2 PANELS AND SCREWS
Part
647658
647660
649114
2202322
2202323
2202324
2202327
2202328
2202329
2202458
2202459
2202460
Description
Screw - Header Panel
Screw - Sides & Rear Panel
Screw - Upper Front Panel
Panel - R.H. Side (Air-Cooled)
Panel - L.H. Side (Air Cooled)
Panel - Rear (Air-Cooled)
Panel - Header
Panel - Upper Front
Panel - Lower Front
Panel - R.H. Side (Water-Cooled)
Panel - L.H. Side (Water-Cooled)
Panel - Rear (Water-Cooled)
45
Quantity
2
4
1
1
1
1
1
1
1
1
1
8.3 AUGER SHAFT AND FACEPLATE PARTS
694255
381804
149003
666786
624678-5
4157968
3170644
625133
2149243-01
2177428
624677-5
3159696
3158086
624664-5
624598-5
624614-5
744262
417006
744273
46
8.3 AUGER SHAFT AND FACEPLATE PARTS (CONTINUED)
Part
149003
232734
314453
381804
417006
482019
624598-5
624614-5
624664-5
624677-5
624678-5
625133
666786
694255
744262
744273
2149243-01
2177072
2177073
2177074
2177428
3158086
3159696
3170644
4157968
Description
Bushing - Front Auger Support
Cap - Rosette - Teardrop
Cover - Hopper
Auger Flight
Grid - Drip Tray (Metal)
Knob - Front Door (Black)
O-Ring - Outside Spigot - Black (5 Pack)
O-Ring - Top & Bottom Center Spigot - Black (5 Pack)
O-Ring - Middle Center Spigot - Black (5 Pack)
O-Ring - Mix Inlet - Black (5 Pack)
O-Ring - Rear Seal - Black (5 Pack)
O-Ring - Front Door - Red
Seal - Rear Auger - Black
Spring - Auger Flight
Tray - Drain (Black Plastic)
Tray - Drip
Mix Inlet Assembly - 3/16” Hole - Extended Length (2LA)
Extension - Spigot - 1.5”
Extension - Spigot - 2.5”
Extension - Spigot - 3.2”
Door w/Pins
Spigot Body - Center
Spigot Body - Outer
Support - Front Auger
Auger Shaft
47
Quantity
2
3
2
10
1
4
4
2
1
4
2
2
2
8
1
1
2
1
1
2
2
2
8.4 INTERNAL COMPONENTS
2202316
231078
762454
762490
763422
763482
231095
272065
763423
342004
521513
521514
521516
618142
618157
763017
230633
231084
230649
231079
614233
598296
718794
231107
295112
762978
152231
598031
342020
522858-SV
458003
282032
284084
162077
522291
48
8.4 INTERNAL COMPONENTS (CONTINUED)
Part
152234
162077
229148
230633
230649
231079
231084
231107
272065
282032
284084
284104
295112
342004
342020
368140
458003
521513
521514
521516
522291
522858-SV
598032
598540
614233
618142
618157
718537
718794
762359
762454
762490
762978
763017
763181
763422
763423
763482
764385
1158090-SV
2202316
Description
Belt - Gripnotch (AX33) (1 per Side)
Blade - Fan (Air-Cooled Condenser)
Cable - IntelliTec2 (Control Board to Display Board)
Capacitor - Run (50 Hz)
Capacitor - Start (50 Hz)
Capacitor - Start
Capacitor - Run
Cap Tube
Valve Coil - Solenoid (#763423 Valve)
Compressor - Copeland 1 PH - 60 Hz - R404A (No Capacitors)
Condenser (Air-Cooled)
Condenser (Water-Cooled)
Contactor - Compressor / Drive
Drier (Liquid Line)
Drier (Hopper Liquid Line) (Cap Tube)
Filter - Air (Condenser)
Sight Glass
Board - Program (IntelliTec2)
Board - Relay (IntelliTec2)
Board - Program / Relay (IntelliTec2)
Motor - Fan (Air-Cooled Condenser)
Motor - Drive (1 PH)
Pulley - Speed Reducer
Pulley - Drive Motor
Speed Reducer
Relay (50 Hz)
Relay
Switch - Limit (Door Interlock)
Switch - High Pressure Cutout
Valve Core (Schrader)
Valve - Expansion
Valve - Expansion (AXV)
Valve - EPR
Valve - Hot Gas Bypass
Valve - Water
Valve - Solenoid (1/4”) (Liquid Line)
Valve - Solenoid (1/2”) (Suction Side)
Valve Coil - Solenoid (#763422)
Valve Kit - Water Valve Repair
Switch - Door Interlock
Evaporator / Hopper Assembly
49
Quantity
2
1
1
1
1
1
1
1
2
1
1
1
3
1
1
1
1
1
1
1
1
2
2
2
2
1
1
1
1
3
2
2
1
1
1
3
2
3
1
1
8.5 SPIGOT ASSEMBLY
718733
696044
570961
2158082
428045
2187805
Part
428045
570961
696044
718773
2158082
2187805
Description
Knob - Spigot Handle (Black)
Pin - Cotterless Clevis (Spigot Cam)
Spring - Torsion (Spigot Cam)
Switch - Limit (Spigot Cam)
Glide - Spigot Socket
Handle - Spigot (Handle Only)
Quantity
3
3
3
3
3
3
8.6 FRONT
332563
482004
Part
332563
482004
Description
Board - Display Module (Display Only)
Knob (Spigot Adjustment)
50
Quantity
1
3
8.7 WIRING DIAGRAMS
51
52

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