Model C602
Combination Shake /
Soft Serve Freezer
Service Manual
057888-S
4/6/04
Table of Contents
Section 1: Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
1 |
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
2 |
Refrigerant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
2 |
Model C602 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
4 |
Installation Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
5 |
Section 2: Systems, Controls and Operations . . . . . . . . . . . . . . . . . . . . . . . . . . |
7 |
Running Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
8 |
Refrigeration System Schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
9 |
Control Panel Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
10 |
Freezer Lock-Out . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
14 |
Heat Treatment Cycle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
33 |
Heat Treatment Graph . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
34 |
Timers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
35 |
Glycol System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
37 |
Glycol Path . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
39 |
Setting Viscosity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
40 |
Portion Control (Shake) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
41 |
Adjustable Draw Handle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
42 |
Control Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
43 |
Universal Control (UVC3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
44 |
Electrical System Modes of Operation Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
47 |
Electrical System - L1 Power Path . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
48 |
Shake Draw Sequence Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
50 |
Syrup Delivery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
51 |
Syrup Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
52 |
Shake Dispensing Alignment Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
54 |
Table of Contents |
Model C602 |
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Table of Contents - Page 2 |
Section 3: Troubleshooting . . . . . . . . . . . . . . . . . . . . . |
. . . . . . . . . . . . . . . . . . . . . . 57 |
General Troubleshooting Guide . . . . . . . . . . . . . . . . . . |
. . . . . . . . . . . . . . . . . . . . . 58 |
Air Mix Pump System Troubleshooting . . . . . . . . . . . . |
. . . . . . . . . . . . . . . . . . . . . 63 |
Peristaltic Syrup System Troubleshooting Guide . . . |
. . . . . . . . . . . . . . . . . . . . . 64 |
Shake Dispensing Mechanism Troubleshooting . . . . |
. . . . . . . . . . . . . . . . . . . . . 67 |
Shake Portion Control Troubleshooting . . . . . . . . . . . |
. . . . . . . . . . . . . . . . . . . . . 69 |
Bacteria Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . |
. . . . . . . . . . . . . . . . . . . . . 70 |
Section 4: Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
. . . . . . . . . . . . . . . . . . . . . 73 |
Warranty Explanation . . . . . . . . . . . . . . . . . . . . . . . . . . . |
. . . . . . . . . . . . . . . . . . . . . 74 |
Main Exploded View . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
. . . . . . . . . . . . . . . . . . . . . 76 |
Syrup Cabinet View . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
. . . . . . . . . . . . . . . . . . . . . 79 |
Mix Pump & Tubes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
. . . . . . . . . . . . . . . . . . . . . 80 |
Pump A. - Mix Simplified Shake - X57028-XX . . . . . . |
. . . . . . . . . . . . . . . . . . . . . 81 |
Pump A. - Mix Simplified Soft Serve - X57029-XX . . |
. . . . . . . . . . . . . . . . . . . . . 82 |
Brush Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
. . . . . . . . . . . . . . . . . . . . . 83 |
Control Assembly - X55966-33 . . . . . . . . . . . . . . . . . . . |
. . . . . . . . . . . . . . . . . . . . . 84 |
Dec Plate Assembly - X55963 . . . . . . . . . . . . . . . . . . . |
. . . . . . . . . . . . . . . . . . . . . 86 |
Torque Coupling Assembly - X54722 . . . . . . . . . . . . . |
. . . . . . . . . . . . . . . . . . . . . 87 |
Glycol Heater Assembly - X55965-27 . . . . . . . . . . . . . |
. . . . . . . . . . . . . . . . . . . . . 88 |
Sensor Holder Assembly - X55980 . . . . . . . . . . . . . . . |
. . . . . . . . . . . . . . . . . . . . . 89 |
Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
. . . . . . . . . . . . . . . . . . . . . 90 |
Wiring Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
. . . . . . . . . . . . . . . . . . . . . 110 |
CAUTION: Information in this manual is intended to be used by Taylor Authorized Service Technicians only.
Note: Continuing research results in steady improvements; therefore, information in this manual is subject to change without notice.
E April, 2004 Taylor All rights reserved. 057888-S
Model C602 |
Table of Contents |
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Section 1: Introduction
S Safety
S Refrigerant
S Specifications
S Installation Instructions
Model C602 |
1 |
Introduction |
Safety
______________________________
We at Taylor Company, are committed to manufacturing safe operating and serviceable equipment. The many built-in safety features that are part of all Taylor equipment are aimed at protecting operators and trained service technicians alike.
This manual is intended exclusively for Taylor Company authorized service personnel.
Stationary appliances which are not equipped with a power cord and a plug or other device to disconnect the appliance from the power source must have an all-pole disconnecting device with a contact gap of at least 3 mm installed in the external installation.
This machine must be placed on a level surface. Failure to comply may result in personal injury or equipment damage.
DO NOT install the machine in an area where a water jet could be used to clean or rinse the freezer. Failure to follow this instruction may result in serious electrical shock.
DO NOT remove the door, beater, scraper blades, drive shaft or air/mix pump unless all control switches are in the OFF position. Failure to follow this instruction may result in severe personal injury from hazardous moving parts.
This machine is designed to operate indoors, under normal ambient temperatures of 70°-75°F (21°-24°C). The machine has successfully performed in high ambient temperatures of 104°F (40°C) at reduced capacities.
NOISE LEVEL: Airborne noise emission does not exceed 78 dB(A) when measured at a distance of 1.0 meter from the surface of the machine and at a height of 1.6 meters from the floor.
Refrigerant
______________________________
Taylor Company uses R404A refrigerant. This refrigerant is generally considered non-toxic and non-flammable; however, any gas under pressure is potentially hazardous.
NEVER fill any refrigerant cylinder completely with liquid. Filling the cylinder to approximately 80% will allow for normal expansion.
Refrigerant liquid sprayed onto the skin may cause serious damage to tissue. Keep eyes and skin protected. If refrigerant burns should occur, flush immediately with cold water. If burns are severe, apply ice packs and contact a physician immediately.
The Taylor Company reminds technicians to be cautious of government laws regarding refrigerant recovery, recycling, and reclaiming systems. If you have any questions regarding these laws, please contact the factory Service Department.
WARNING: R404A refrigerant used in conjunction with polyolester oils is extremely moisture absorbent. When opening a refrigeration system, the maximum time the system is open must not exceed 15 minutes. Cap all open tubing to prevent humid air or water from being absorbed by the oil.
Introduction |
2 |
Model C602 |
Compressor Warranty Disclaimer
______________________________
The refrigeration compressor(s) on this machine are warranted for the term indicated on the warranty card accompanying this machine. However, due to the Montreal Protocol and the U.S. Clean Air Act Amendments of 1990, many new refrigerants are being tested and developed; thus seeking their way into the service industry. Some of these new refrigerants are being advertised as drop-in replacements for numerous applications. It should be noted that, in the event of ordinary service to this machine’s refrigeration system, only the refrigerant specified on the affixed data label should be used. The unauthorized use of alternate refrigerants will void your compressor warranty. It will be the owners’ responsibility to make this fact known to any technicians they employ.
It should be noted, that Taylor does not warrant the refrigerant used in its equipment. For example, if the refrigerant is lost during the course of ordinary service to this machine, Taylor has no obligation to either supply or provide its replacement either at billable or unbillable terms. Taylor does have the obligation to recommend a suitable replacement if the original refrigerant is banned, obsoleted, or no longer available during the five year warranty of the compressor.
The Taylor Company will continue to monitor the industry and test new alternates as they are being developed. Should a new alternate prove, through our testing, that it would be accepted as a drop-in replacement, then the above disclaimer would become null and void. To find out the current status of an alternate refrigerant as it relates to your compressor, call the local Taylor Distributor or the Taylor Factory. Be prepared to provide the model/serial number of the unit in question.
Model C602 |
3 |
Introduction |
Model C602 Specifications
Freezing Cylinders
Shake Side: One, 7 quart (6.6 liter)
Soft Serve: One, 3.4 quart (3.2 liter)
Mix Hopper
Two, 20 quart (18.9 liter). Refrigerated to maintain mix below 41°F (5°C).
Beater Motor
Shake: 1.0 HP
Soft Serve: 1.5 HP
Refrigeration System
Shake: 11,000 BTU/hr Soft Serve: 9,500 BTU/hr
Refrigerant: R404A (BTU’s may vary depending on compressor used.)
Main Compressor:
Air Cooled Units:
Shake: 54 oz (1,531 g) of R404A Soft Serve: 46 oz (1,304 g) of R404A
Water Cooled Units:
Shake: 48 oz (1,361 g) of R404A Soft Serve: 32 oz (907 g) of R404A
Note: Specifications are subject to change. Check the data label for proper charging specifications.
Electrical
Standard is 208/230-60-3; however, other electrical characteristics are available. Each unit requires electrical service - Three Phase Maximum Fuse Size: 40 A, Minimum Wire Ampacity: 36 A
Note: McDonald’s specifies Hubbell A460P9 plug for 208-230/60-3 equipment.
Air Cooled
Clearance: A minimum of 3” (76 mm) is required around all sides. Install the deflector provided to prevent recirculation of warm air. Minimum air clearances must be met to assure adequate air flow for optimum performance.
Dimensions
Width: 25-1/4” (641 mm) including cup/cone dispenser: 32-3/8” (822 mm)
Height: 60-7/16” (1535 mm) Depth: 38-7/8” (987 mm)
Floor Clearance: 4-3/4” (121 mm)
Approximate Weights
Net: 815 lbs. (369.7 kgs)
Crated: 1046 lbs. (474.5 kgs)
Volume: 66.5 cu ft (1.88 cu m)
Figure 1
Introduction |
4 |
Model C602 |
Installation Instructions
This machine must be placed on a level surface. Failure to comply may result in personal injury or equipment damage.
DO NOT install the machine in an area where a water jet could be used to clean or rinse the freezer. Failure to follow this instruction may result in serious electrical shock.
Disconnect Switch
Stationary appliances which are not equipped with a power cord and a plug or other device to disconnect the appliance from the power source must have an all-pole disconnecting device with a contact gap of at least 3 mm installed in the external installation.
Air Cooled Units
These units require a minimum of 3” (76 mm) of air clearance around all sides. Install the deflector provided to prevent recirculation of warm air. Minimum air clearances must be met to assure adequate air flow for optimum performance.
Gear Alignment and Rear Shell Bearing
1.Make certain the drive shaft can easily slide in and out of the female socket on the gear unit.
2.If a drive shaft is binding, the gear unit could be out of alignment (loose). Check the bolts on the gear unit to be sure they are tight.
3.Inspect the rear shell bearing for tightness. Be sure the locking tab has been folded over to prevent the nut from loosening.
Note: If the gear unit is out of alignment, refer to the General Service Manual.
Beater Rotation
REMEMBER TO DISCONNECT ALL POWER TO THE FREEZER! Failure to follow this instruction may result in electrocution.
Beater rotation = CLOCKWISE (when viewed from the front of the machine).
Note: This machine is equipped with an interlock circuit that prevents beater motor operation when the freezer door is not installed.
1.Remove the side panels.
2.Place the power switch in the ON position.
3.Select the WASH key on the control panel. This activates the beater motor only.
CAUTION: Hazardous moving components! Keep your hands clear when operating the machine with the panels removed. Failure to follow this instruction may result in severe personal injury from hazardous moving parts.
4.Check the rotation of the drive coupling located on the output shaft of the gear reducer. The coupling should be turning CLOCKWISE as viewed from the front of the machine.
5.Press the WASH key again to stop the beater motor.
If rotation is not correct, exchange any two incoming power lines at the freezer main terminal box only (splice box).
REMEMBER TO DISCONNECT ALL POWER TO THE FREEZER! Failure to follow this instruction may result in electrocution.
Model C602 |
5 |
Introduction |
Pump Motor Rotation
1.Remove the air/mix pump assembly.
2.Connect power to the freezer and place the power switch in the ON position.
3.Press the PUMP key on the control panel. This will activate the pump motor only.
4.Observe the pump ball crank. It should be rotating counterclockwise.
If rotation is not correct, refer to the wiring diagram on the pump motor and re-wire accordingly.
REMEMBER TO DISCONNECT ALL POWER TO THE FREEZER! Failure to follow this instruction may result in electrocution.
Electrical Connections
Each freezer requires one power supply. Check the data label on the freezer for fuse, circuit ampacity and electrical specifications. Refer to the wiring diagram, provided inside the control box, for proper power connections.
In the United States, this equipment is intended to be installed in accordance with the National Electrical Code (NEC), ANSI/NFPA 70-1987. The purpose of the NEC code is the practical safeguarding of persons and property from hazards arising from the use of electricity. This code contains provisions considered necessary for safety. Compliance therewith and proper maintenance will result in an installation essentially free from hazard!
In all other areas of the world, equipment should be installed in accordance with the existing local codes. Please contact your local authorities.
Stationary appliances which are not equipped with a power cord and a plug or other device to disconnect the appliance from the power source must have an all-pole disconnecting device with a contact gap of at least 3 mm installed in the external installation.
Introduction |
6 |
Model C602 |
Section 2:
Systems, Controls and Operations
S |
Running Specifications |
S |
Refrigeration System Schematic |
S |
Control Panel Functions |
S Freezer Lock-Out |
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S |
Heat Treatment Cycle |
S |
Heat Treatment Graph |
S |
Timers |
S |
Adjustable Draw Handle |
S |
Beater Stir Cycles |
S |
Glycol System |
S |
Glycol Path |
S |
Setting Viscosity |
S |
Portion Control (Shake) |
S |
Control Overview |
S Electrical System Modes of Operation Chart
S Electrical System - L1 Power Path
S Shake Draw Sequence Chart
S Syrup Delivery
S Syrup Calibration
S Shake Draw Mechanism Alignment
Model C602 |
7 |
Systems, Controls and Operations |
Running Specifications
Pressures/Temperatures
The following are the Taylor Company recommended settings for various components in the Model C602. (See page 9 for the Refrigeration System Schematic.)
Expansion Valve
Soft Serve
Air Cooled: 20 - 22 psi. (138 - 152 kPa) Water Cooled: 20 - 22 psi. (138 - 152 kPa)
for a normal product of 16_ - 18_F. (-8.8_to -7.7_C).
Shake
Air Cooled: 38 - 39 psi. (262 - 269 kPa) Water Cooled: 38 - 39 psi. (262 - 269 kPa for a normal product of 24_ - 26_F. (-4_C).
Note: Triple Thick Shake product temperature is 22_24_F. (-5_C).
Expansion Valve Adjustment
Connect your refrigerant gauge to the low side access valve. Turn the access valve counter-clockwise to open the valve.
Adjust the pressure higher or lower by turning the expansion valve adjustment screw. Clockwise turns will raise the pressure and counterclockwise will lower the pressure.
Note: Make expansion valve adjustments with mix in the freezing cylinder and the freezer in the AUTO mode. Be sure to allow adequate time for the pressure to stabilize.
Turn the access valve clockwise to close the valve. Install and securely tighten the access valve caps and the expansion valve cap.
Low Side (Suction)
Suction pressure equals expansion valve setting.
High Side (Discharge)
High side pressure varies for air cooled units, depending on the ambient temperature.
Ambient Temperature |
Normal Operating Head |
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Pressures |
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PSI |
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70_ |
21.1_ |
240 - 270 |
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(1,655 - 1,862 kPa) |
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80_ |
26.7_ |
270 - 300 |
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(1,862 - 2,069 kPa) |
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90_ |
32.2_ |
300 - 340 |
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(2,069 - 2,344 kPa) |
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100_ |
37.8_ |
340 - 380 |
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(2,344 - 2,620 kPa) |
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Water Valve
On a water cooled unit, the water valve should be set to maintain a compressor head pressure of 255 psi. (1,758 kPa).
Water Valve Adjustment
Note: Make this adjustment with mix in the cylinder and the freezer in the AUTO mode. Be sure to allow adequate time for pressure to stabilize.
Connect your refrigerant gauge to the high side access valve. Turn the access valve counterclockwise to open the valve. Turning the adjustment stem on the water valve clockwise will lower the pressure.
Turn the access valve clockwise to close the valve. Install and securely tighten the access valve caps.
Systems, Controls and Operations |
8 |
Model C602 |
Refrigeration System Schematic
Figure 2
Model C602 |
9 |
Systems, Controls and Operations |
Control Panel Functions
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Figure 3 |
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ITEM |
DESCRIPTION |
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FUNCTION |
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1 |
Keypad-Shake |
Used for selecting operating functions on the shake side of the machine. |
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2 |
Display-Vacuum |
Screen which displays menu options and notifies operator if a fault is |
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Fluorescent Menu (VFD) |
detected. |
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3 |
Keypad-Menu (Entry/Exit) |
Used to select the Manager or Service Menu or to exit the Menu Display. |
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4 |
Keypad-Soft Serve |
Used for selecting operating functions on the soft serve side of the |
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machine. |
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5 |
Standby-Soft Serve |
Indicates when the soft serve side is in the Standby mode. |
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6 |
Standby-Shake |
Indicates when the shake side is in the Standby mode. |
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7 |
Keypad-Topping Heater |
Used to activate the topping rail heaters. |
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8 |
Display-LED Dual (Brush |
Displays the number of days before brush cleaning is required. |
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Clean Countdown) |
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9 |
Keypad-Flavor Select |
Used for selecting the desired shake flavor to be dispensed. Also used |
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for opening and closing the draw valve when cleaning, sanitizing, and |
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priming the shake side. |
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10 |
Switch-Power |
When placed in the ON position, allows control panel operation. |
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11 |
Keypad-Calibrate Menu |
Used to access the Calibrate Menu containing options for calibrating the |
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syrup dispensing rate or priming and flushing the syrup lines. |
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12 |
Indicator Light-Mix Low |
Illuminates when the mix hopper has a low supply of mix and should be |
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refilled as soon as possible. |
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13 |
Indicator Light-Mix Out |
Illuminates when the mix hopper has an insufficient supply of mix to |
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operate the freezer. The Auto mode will be locked out and the machine |
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will be placed in the Standby mode. |
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Systems, Controls and Operations |
10 |
Model C602 |
Symbol Definitions
To better communicate in the International arena, the words on many of our operator keys have been replaced by symbols to indicate their functions. Your Taylor equipment is designed with these International symbols.
The following chart identifies the symbol definitions.
=AUTO
=HEAT CYCLE
= WASH
= MIX PUMP
= STANDBY (SHAKE)
= STANDBY (SOFT SERVE)
= FLAVOR SELECTION
= MIX LOW
= MIX OUT
= TOPPING HEATER-LEFT
= TOPPING HEATER-RIGHT
= CALIBRATE
= MENU DISPLAY
Power Switch
When placed in the ON position, the power switch allows control panel operation.
Vacuum Fluorescent Display
The vacuum fluorescent display (VFD) is located on the front control panel. During normal operation the display is blank. The display is used to show menu options and notifies the operator if a fault is detected. On International models, the display will indicate the temperature of the mix in each hopper.
Indicator Lights
MIX LOW - When the MIX LOW symbol 
is illuminated, the mix hopper has a low supply of mix and should be refilled as soon as possible.
MIX OUT - When the MIX OUT 
symbol is illuminated, the mix hopper has been almost completely exhausted and has an insufficient supply of mix to operate the freezer. At this time, the AUTO mode is locked out and the freezer will be placed in the STANDBY mode. To initiate the refrigeration system, add mix to the mix hopper and touch the
AUTO symbol 
. The freezer will automatically begin operation.
Model C602 |
11 |
Systems, Controls and Operations |
Heat Mode Symbol
When the HEAT MODE symbol 
is illuminated, the freezer is in the process of a heat cycle. The heat mode symbol may be selected to start a heat cycle following a freezer soft lock condition.
For some International models, the heat symbol can be selected to manually start a heat cycle at any time.
Brush Clean Countdown - Displays the number of days before the next brush cleaning is required. When the display has counted down to “1”, the machine must be disassembled and brush cleaned within 24 hours.
Power Up
When the machine is powered the control system will initialize to perform a system check. The screen will display “INITIALIZING”. There will be four types of data the system will check: LANGUAGE, SYSTEM DATA, CONFIG DATA, and LOCKOUT DATA.
During the INITIALIZING... LANGUAGE screen, the alarm will be on. If the system detects corrupt data during INITIALIZING, the following display will alert the operator that the control settings may have been changed (See Figure 4.)
SERVICE REQ’D
NVRAM FAULT
RESET TO DEFAULTS < PRESS TO CLEAR
Figure 4
Once the system has initialized, the number of days remaining before the next required brush cleaning is indicated on the control panel and the SAFETY TIMEOUT screen is displayed with the alarm turned on. (See Figure 5.)
SAFETY TIMEOUT
ANY KEY ABORTS
Figure 5
The SAFETY TIMEOUT screen will be displayed with the alarm on, for 60 seconds or until any control symbol is selected.
After the safety timeout has been completed and the power switch is OFF, the following screen is displayed. (See Figure 6.)
POWER SWITCH OFF
=- = - = - = - = - = - = - UNIT CLEANED
Figure 6
Power Switch ON
When the power switch is placed in the ON position, the control panel touch keys become operative. The VFD will be either blank or indicate that the unit has been cleaned. (See Figure 7.)
UNIT CLEANED
Figure 7
Display for International Models Only:
Some International models will continuously display the temperature of each mix hopper when the power switch is in the ON position. (See Figure 8.)
HOPPERS 21.0 21.1
UNIT CLEANED
Figure 8
Systems, Controls and Operations |
12 |
Model C602 |
Heat Cycle
The HEAT symbols 
on the control panel are illuminated throughout the heat treatment cycle. Two warning messages will be displayed on the screen. “DO NOT DRAW” will be displayed when the mix temperature is below 130°F (54.4°C). (See
Figure 9.)
L:DO NOT DRAW
R:DO NOT DRAW
Figure 9
When the temperature of the mix is above 130°F (54.4°C) the screen will display a message indicating that HOT PRODUCT is in the machine. (See Figure 10.)
L:HOT PRODUCT
R: HOT PRODUCT
Figure 10
DO NOT attempt to draw product or disassemble the unit during the HEAT cycle. The product is hot and under extreme pressure.
In the HEAT cycle, the mix temperature in the hoppers and freezing cylinders must be raised to 151°F (66.1°C) within 90 minutes.
When the heating phase is complete, the freezer goes into the holding phase of the cycle. The holding phase will keep the temperature above 151°F (66.1°C) for a minimum of 30 minutes.
The final phase of the heat treatment cycle is the cooling phase. The freezer must cool the mix below 41°F (5°C) within two hours.
When the entire heat cycle has been completed, the
HEAT symbols 
will no longer be illuminated. The machine will enter the STANDBY mode (STANDBY
symbols 
and 
illuminate). The machine can be placed in AUTO or left in STANDBY.
Model C602 |
13 |
Systems, Controls and Operations |
Freezer Lock-Out
Heat Cycle Failure Messages
To comply with health codes, heat treatment system freezers must complete a heat treatment cycle daily, and must be disassembled and brush cleaned a minimum of every 14 days. Brush cleaning is the normal disassembly and cleaning procedure found in the Operator Manual. Failure to follow these guidelines will cause the control to lock the freezer out of the AUTO mode.
Always comply with local guidelines for the maximum number of days allowed between brush clean cycles. (See the Manager/Service Menu for setting the Brush Clean interval, on page 21.)
If the Heat Treatment Cycle fails, the VFD will display a failure message and return the freezer to the STANDBY mode. A “lock” is defined as a special STANDBY mode of operation which does not allow the machine to operate in the AUTO mode.
There are two types of freezer lock conditions that can occur: Hard Lock or Soft Lock. A Hard Lock requires the machine be disassembled and brush cleaned. A Soft Lock can be corrected by either disassembling and brush cleaning the machine, or by starting another heat treatment cycle.
Hard Lock: There are two causes of a hard lock failure:
1.The brush clean timer has elapsed (maximum setting of 14 days). (See Figure 11.)
BRUSH CLEAN TIMEOUT
FREEZER LOCKED
CLEANING REQ’D
WASH TO BRUSH CLEAN
Figure 11
Selecting the WASH symbol 
will display the following screen. (See Figure 12.)
FREEZER LOCKED
Figure 12
2.There has been a thermistor failure (freezing cylinder, hopper, or glycol) during the heat treatment process. (See Figure 13.)
SYSTEM FAULT
FREEZER LOCKED
SERVICE REQ’D
<PRESS TO CLEAR
Figure 13
Selecting the CALIBRATE symbol 
will indicate which thermistor caused the Hard Lock. (See Figure 14.)
L: HOPPER THERM BAD
FREEZER LOCKED
Figure 14
If the machine has hard locked and an attempt is made to enter AUTO, the machine will enter the STANDBY mode and display the following message. (See Figure 15.)
FREEZER LOCKED
Figure 15
Systems, Controls and Operations |
14 |
Model C602 |
To restore the message that identified the reason for the hard lock, turn the power switch OFF for five seconds and then return the power switch to the ON position. The original message with the reason for the Hard Lock will be displayed. The FAULT DESCRIPTION can also be found in the Manager or Service Menu (See page 22.)
The FREEZER LOCKED message will remain on the display until the brush clean requirements are fulfilled. The freezer must be disassembled in order to activate the five minute timer on the display screen. Once the timer counts down to zero, the lockout is cleared.
Soft Lock: If a heat treatment cycle has not been initiated within the last 24 hours, a soft lock failure will occur. A soft lock allows the operator to correct the cause of the soft lock. The operator has the option of either starting another heat cycle or brush cleaning the machine. When a soft lock occurs, the machine will go into the STANDBY mode. The following message is displayed on the screen. The reason for the soft lock is indicated on the second line. (See Figure 16.)
HEAT TREAT FAILURE
REASON
HEAT FOR HEAT CYCLE
WASH TO BRUSH CLEAN
Figure 16
If the reason for the soft lock has been corrected, selecting the HEAT symbol 
initiates a Heat Cycle
immediately. Selecting the WASH symbol 
when the above message is displayed will hard lock the machine and brush cleaning will be necessary.
Reasons For Soft Lock
Following are the variable messages for soft lock failures that appear on the second line of the screen.
Power Switch Off
This soft lock will occur if the power switch is in the OFF position and greater than 24 hours have passed since the start of the 14 day timer, or the start of the last successful Heat Treatment Cycle.
Mix Out
This soft lock will occur if one or both sides has a mix out condition and greater than 24 hours have passed since the start of the 14 day timer or the start of the last successful Heat Treatment Cycle.
Auto or Standby Off
This soft lock will occur if one or both sides is in the OFF mode and greater than 24 hours have passed since the start of the 14 day timer or the start of the last successful Heat Treatment Cycle.
No Heat Cycle Tried
No Heat Treatment Cycle was performed in the 24 hours after the start of the 14 day timer, or the start of the last successful Heat Treatment Cycle. (AUTO HEAT TIME was advanced,a power loss was experienced at the time the cycle was to occur, or a heat cycle failure not due to a thermistor failure.)
Model C602 |
15 |
Systems, Controls and Operations |
If the following screen appears, a soft lock has occurred during the heat treatment cycle. (See Figure 17.)
HEAT TREAT FAILURE
FREEZER LOCKED
HEAT FOR HEAT CYCLE
WASH TO BRUSH CLEAN
Figure 17
A soft lock can also occur any time during operation when the hopper or freezing cylinder temperature rises above 59°F (15°C), or the temperature rises and remains above 41°F(5°C) for more than four hours. If a PRODUCT OVER TEMPERATURE condition occurs during operation, the following screen will appear. (See Figure 18.)
PRODUCT OVER TEMP
HEAT FOR HEAT CYCLE
WASH TO BRUSH CLEAN
Figure 18
When one of these messages appears, automatic freezer operation cannot take place until the freezer is disassembled and brush cleaned, or has completed a heat treatment cycle. Select the HEAT
symbol 
to start a heat cycle, or select the WASH
symbol 
to disassemble and brush clean the machine.
Once the freezer is unlocked by starting a heat
treatment cycle the HEAT symbol 
will illuminate and the following message will be displayed on the screen. (See Figure 19.)
L: DO NOT DRAW
R: DO NOT DRAW
Figure 19
If the WASH symbol 
is selected to clear the lockout by brush cleaning the machine, the FREEZER LOCKED message will remain on the display until the brush clean requirements are fulfilled. The freezer must be disassembled in order to activate the five minute timer on the display screen. Once the timer counts down to zero, the lockout is cleared. (See Figure 20.)
FREEZER LOCKED
Figure 20
To restore the message that identified the reason for the soft lock, turn the power switch OFF for five seconds, and then return the power switch to the ON position. The original message with the reason for the soft lock will be displayed. (See Figure 21.)
HEAT TREAT FAILURE
REASON
HEAT FOR HEAT CYCLE
WASH TO BRUSH CLEAN
Figure 21
The FAULT DESCRIPTION can also be found in the Manager and Service Menus. (See page 22.)
Note: A record of Heat Cycle Data and Lock Out History can be found in the Manager and Service Menus. (See page 23.)
Systems, Controls and Operations |
16 |
Model C602 |
Service Menu
______________________________
The Service Menu option allows a trained service technician to access and modify critical operating parameters for the machine. All the menu screens found in the Manager’s Menu are also included in the Service Menu. To access the menu, touch the center of the CONE symbol.
13117
Figure 22
The shake AUTO symbol 
, the OPTIONAL
FLAVOR symbol 
and the CONE symbol 
will be illuminated when the ACCESS CODE screen is displayed.
In the Menu program, the shake side AUTO symbol 
, OPTIONAL FLAVOR symbol 
, and
CALIBRATION symbol 
will function as menu keys.
AUTO 
- increases the value above the cursor and used to scroll upward in text displays
OPTIONAL FLAVOR 
- decreases the value above the cursor and used to scroll downward in text displays.
CALIBRATION 
- advances the cursor position to the right and is used to select menu options.
Note: You will not be able to dispense shakes while accessing the Service Menu options, except when the CURRENT CONDITIONS screen is displayed.
The soft serve side will continue operation in the mode it was in when the Menu was selected. However, the soft serve side control keys will not be
illuminated and are non-functional when a menu screen is displayed. The control keys for both sides are only functional when the CURRENT CONDITIONS screen is displayed.
Entering Access Code
With the ACCESS CODE screen on the display use
the AUTO 
or OPTIONAL FLAVOR 
symbols to set the first code number in the cursor position. When the correct number is selected, touch the
CALIBRATION symbol 
to move the cursor to the next number position.
The access code for the Service Menu is 5231. The access code for the Operator Menu is 8309. (See Figure 23.)
ENTER ACCESS CODE 5 2 3 1
_
Figure 23
Continue to enter the proper access code numbers until all four numbers are displayed, and then touch
the CALIBRATION symbol 
. The Service Menu list will display on the screen, provided the correct access code is entered.
If an incorrect number is entered for the access code, the display will exit the Menu program when
the CALIBRATION symbol 
is selected. (See Figure 24.)
13118 |
Figure 24
Model C602 |
17 |
Systems, Controls and Operations |
Service Menu Options
Touch the AUTO symbol 
or OPTIONAL FLAVOR
symbol 
to move up or down through the Menu. Select a Menu option by aligning the option with the arrow on the left side of the screen, and then touch
the CALIBRATION symbol 
. Exit the Menu program by selecting EXIT FROM MENU or touch
the CONE symbol 
.
The following menu options are listed in the Service Menu:
Note: Options “EXIT FROM MENU” through “CURRENT CONDITIONS” can also be accessed through the Manager’s Menu.
EXIT FROM MENU
VERIFY CALIBRATION
RESET DRAW COUNTER
SET CLOCK
AUTO HEAT TIME
AUTO START TIME
STANDBY MODE
BRUSH CLEAN CYCLE
MIX LEVEL AUDIBLE
FAULT DESCRIPTION
LOCKOUT HISTORY
HEAT CYCLE SUMMARY
HEAT CYCLE DATA
SYSTEM INFORMATION
CURRENT CONDITIONS
TEMPERATURE SCALE
STANDBY TEMPERATURE
HOPPER TEMPERATURE
GLYCOL TEMPERATURE
VISCOSITY SETTING
COMPRESSOR CYCLE TIME
COMPRESSOR ON DELAY
BEATER OFF DELAY
MIX PUMP OFF DELAY
WHITESPOT ADJUST
CAL SYRUP TIME
DRAW SAFETY TIME
EDIT UNIT ID
CALIBRATE PROXIMITY SWITCH
SELECT LANGUAGE
ABORT HEAT CYCLE
SYRUP MOTOR SETUP
EXIT FROM MENU
Selecting “EXIT FROM MENU” will exit the Menu and the return the control panel symbols to normal operation.
VERIFY CALIBRATION
The VERIFY CALIBRATION option is used to verify that the amount of syrup dispensed is within the proper specification. (See Figure 25.)
VERIFY CALIBRATION
Select a flavor
<- Press to clear
Figure 25
Remove the syrup valve from the dispensing door. With the line fully primed with syrup, position the syrup valve over the small chamber side of the divided syrup cup, and then select the corresponding favor selection. Syrup will flow into the cup for 5 seconds (7 seconds for Triple Thick Shake Syrup) and then automatically stop flowing. Place the cup on a flat surface and check the amount of syrup dispensed. If the level is not within the correct specification, the flavor will need to be recalibrated.
It is recommended to verify the calibration of each syrup flavor and note any flavors that need to be recalibrated before exiting the Menu to access the CALIBRATION Menu.
Select the CALIBRATION symbol 
to exit the VERIFY CALIBRATION screen and return to the Menu list.
RESET DRAW COUNTER
The SERVING COUNTER screen is used to check or reset the number of servings dispensed from the machine. The SERVING COUNTER will automatically reset to zero when the machine is brush cleaned. (See Figure 26.)
SERVINGS COUNTER
LEFT RIGHT
00
>Next
Figure 26
Systems, Controls and Operations |
18 |
Model C602 |
Reset the SERVING COUNTER by selecting the CALIBRATION symbol 
to advance to the next
screen. Select the AUTO symbol 
to move the arrow (>) to YES and select the CALIBRATION
symbol 
. The servings counter will reset to zero and exit back to the Menu. (See Figure 27.)
RESET DRAW COUNTER
Yes
> No
Figure 27
SET CLOCK
The SET CLOCK option allows the manager or service technician to adjust the control clock date and time. The date and time may only be changed after the freezer has been manually cleaned but before it has been placed in the AUTO or STANDBY mode. The following message will be displayed if the SET CLOCK option is selected when the machine is not in a brush clean state. (See Figure 28.)
SET CLOCK
08:00 04/02/2004
NO CHANGES ALLOWED > Press Any Key
Figure 28
To change the date or time, select the SET CLOCK
option in the menu. Touch the AUTO symbol 
to advance the arrow from Exit to Change, and then
touch the CALIBRATION symbol 
to select the Change option. (See Figure 29.)
SET CLOCK
08:00 04/02/2004 Change
>Exit
Figure 29
Change the time by touching the AUTO 
or
OPTIONAL FLAVOR symbol 
with the cursor under the hour position. Move the cursor to the
minutes by selecting the CALIBRATION symbol 
. Once the correct minutes are entered, select the
CALIBRATION symbol 
to advance the cursor to the month. (See Figure 30.)
SET CLOCK
08:00 04/02/2004
_ _
> Exit
Figure 30
Enter the correct month, day, and year. Then select
the CALIBRATION symbol 
to advance to the DAYLIGHT SAVING TIME screen. (See Figure 31.)
DAYLIGHT SAVING TIME
ENABLED
>Enable Disable
Figure 31
The Daylight Saving Time feature, when enabled, will automatically adjust the control clock for daylight saving time. To Disable the Daylight Saving Time
feature, select the AUTO symbol 
to move the arrow to Disable. Then touch the CALIBRATION
symbol 
to save the new setting.
AUTO HEAT TIME
The AUTO HEAT TIME screen allows the manager or service technician to set the time of day in which the heat treatment cycle will start. (See Figure 32.)
AUTO HEAT TIME 0 0 : 0 0
Change
>Exit
Figure 32
Note: Do not advance the Auto Heat Time setting except on the day the unit is brush cleaned. Increasing the time between heat cycles will cause the machine to soft lock if the start of the cycle does
Model C602 |
19 |
Systems, Controls and Operations |
not begin within 24 hours from the start of the previous heat treatment cycle.
To set the AUTO HEAT TIME select the AUTO symbol 
to move the arrow to Change. Then
select the CALIBRATION symbol 
. The screen will display the time with the cursor under the hour position. (See Figure 33.)
AUTO HEAT TIME 0 0 : 0 0
_ _
Figure 33
Select the AUTO symbol 
or the OPTIONAL
FLAVOR symbol 
to increase or decrease the hour to the desired setting. Then move the cursor to the minutes position by selecting the CALIBRATION
symbol 
. Adjust the setting for minutes, then
select the CALIBRATION symbol 
to save the setting and return to the AUTO HEAT TIME screen.
Select the CALIBRATION symbol 
to exit the screen and return to the Menu.
AUTO START TIME
The AUTO START TIME option allows the manager or service technician to set the time of day at which the machine automatically enters the AUTO mode from the STANDBY mode. The machine must be in the STANDBY mode without a freezer lock condition in order to AUTO start at the programmable time. The AUTO START TIME can be disabled and will require starting the AUTO mode manually. (See Figure 34.)
AUTO START TIME
DISABLED
Enable
> Disable
Figure 34
Enable the AUTO START TIME by selecting the AUTO symbol 
to move the arrow up to Enable.
Select the CALIBRATION symbol 
to advance to the next screen. (See Figure 35.)
AUTO START TIME 0 0 : 0 0
Change
>Exit
Figure 35
Program the AUTO START TIME by selecting the AUTO symbol 
to move the arrow to Change.
Select the CALIBRATION symbol 
to advance to the next screen. (See Figure 36.)
AUTO START TIME 0 0 : 0 0
_ _
Figure 36
Program the AUTO START TIME by increasing (AUTO symbol 
) or decreasing (OPTIONAL FLAVOR symbol 
) the hour setting above the
cursor. Select the CALIBRATION symbol 
to advance the cursor and program the minutes setting.
Select the CALIBRATION symbol 
to return to the previous screen with the new time setting displayed.
Select the CALIBRATION symbol 
to exit the screen and return to the Menu.
Systems, Controls and Operations |
20 |
Model C602 |
STANDBY MODE
The Standby option is used only on models which have the control panel Standby keys disabled.
The STANDBY option is used to manually place the left or right side in the standby mode during long, no draw periods. Select the STANDBY screen from the
Menu. Select the AUTO symbol 
to move the arrow up to the left (shake) or right (soft serve) side.
Select the CALIBRATION symbol 
to activate Standby for the selected side.
Repeat the steps to activate Standby on the remaining side. (See Figure 37.)
STANDBY MODE
LEFT
RIGHT
>Exit
Figure 37
Discontinue Standby operation for either side by exiting the Menu and select the AUTO mode.
BRUSH CLEAN CYCLE
The BRUSH CLEAN CYCLE option allows the manager or service technician to select the maximum number of days between brush cleaning the machine. The brush clean cycle may only be changed after the freezer has been manually cleaned but before it has been placed in the AUTO or STANDBY mode.
The following message will be displayed if the BRUSH CLEAN CYCLE option is selected when the machine is not in a brush clean state.
(See Figure 38.)
BRUSH CLEAN CYCLE
TIME 14 DAYS
NO CHANGES ALLOWED
Press Any Key
Figure 38
Change the number of days between brush clean
intervals by selecting the AUTO symbol 
to decrease the days or the OPTIONAL FLAVOR
symbol 
to increase the number of days. Select
the CALIBRATION symbol 
to save the setting and exit back to the Menu. The number of days displayed on the brush clean counter will change to the new setting. (See Figure 39.)
BRUSH CLEAN CYCLE
TIME 14 DAYS
Figure 39
Always comply with local guidelines on the number of days allowed between brush clean cycles.
MIX LEVEL AUDIBLE
The MIX LEVEL AUDIBLE option, when enabled, will alert the operator with an audible tone when there is mix low or mix out condition. The following screen is displayed upon selecting this option. (See Figure 40.)
MIX LEVEL AUDIBLE
ENABLED
>Enable Disable
Figure 40
Disable the audible tone feature by selecting the OPTIONAL FLAVOR symbol 
to move the arrow
to DISABLE. Select the CALIBRATION symbol 
to save the new setting and return to the Menu. The control panel icons for Mix Low and Mix Out will illuminate as the mix level drops in the hopper but the audible tone will be disabled.
Model C602 |
21 |
Systems, Controls and Operations |
FAULT DESCRIPTION
The FAULT DESCRIPTION display will indicate if there is a fault with the freezer and the side of the freezer where the fault occurred. When no faults are detected the following screen will be displayed. (See Figure 41.)
FAULT DESCRIPTION
L: NO FAULT FOUND
R: NO FAULT FOUND
Figure 41
Select the CALIBRATION symbol 
to display the next fault found or return to the Menu if no other
faults exist. Selecting the CALIBRATION symbol 
any time faults are displayed will clear the faults if corrected, upon returning to the Menu screen.
Listed below are the variable messages which will appear, along with an explanation for the corrective action.
NO FAULT FOUND - There was no fault found in the freezer. Nothing will appear on the screen after this variable message appears.
BEATER OVERLOAD - Press the beater reset button firmly for the side of the freezer with the fault.
HPCO COMPRESSOR - Place the power switch in the OFF position. Wait 5 minutes for the machine to cool. Place the power switch in the ON position and restart each side in AUTO.
HOPPER THERMISTOR BAD - Place the power switch in the OFF position. Replace the bad probe.
BARREL THERMISTOR BAD - Place the power switch in the OFF position. Replace the bad probe.
GLYCOL THERMISTOR BAD - Place the power switch in the OFF position. Replace the bad probe.
LOCKOUT HISTORY
The LOCKOUT HISTORY screen displays a history of the last 40 soft locks, hard locks, brush clean dates, or aborted heat cycles. Page numbers are indicated in the upper right hand corner. Page 1 always contains the most recent failure. (See Figure 42.)
LOCKOUT HISTORY 2 00/00/00 00:00
REASON
> Exit
Figure 42
The second line of the screen displays the date and time a failure occurs. The third line indicates the reason for a failure, or will indicate if a successful brush cleaning has occurred. Some failures occur with multiple reasons. When this occurs, a page will be generated for each reason.
Select the AUTO symbol 
or OPTIONAL FLAVOR
symbol 
to advance forward or backward to view each screen. Listed below are the variable messages that may appear.
Faults Occurring While Entering a Heat Treatment
Cycle
POWER SWITCH OFF - The power switch is OFF.
AUTO OR STBY OFF - The control was not in AUTO or STANDBY.
MIX OUT FAILURE - A mix out condition was present.
NO HEAT CYCLE TRIED - The Auto Heat Time was set to attempt a heat cycle more than 24 hours after the last successful heat cycle.
Systems, Controls and Operations |
22 |
Model C602 |
Faults Occurring While in Heat Mode
HEAT MODE FAILURE - The maximum allowable heat mode time exceeded 90 minutes.
COOL MODE FAILURE - The maximum allowable cool mode time exceeded 120 minutes.
TOTAL TIME FAILURE - The maximum allowable total heat treatment time exceeded 4 hours.
BRUSH CLEAN TIMEOUT - The total days in operation exceeded the brush clean cycle setting.
POWER SWITCH OFF - The power switch was turned OFF during the heat cycle.
POWER FAIL IN H/C - A power failure occurred during the heat treatment cycle.
(L/R) MIX LOW FAILURE - The mix level in the (left/right) Hopper is too low for a successful heat cycle.
(L/R) BEATER OVLD H/C - The overload tripped for the (left/right) side beater motor.
(L/R) BRL THERM FAIL - The thermistor sensor for the (left/right) side barrel failed.
(L/R) HOPPER THERM FAIL - The thermistor sensor for the (left/right) side hopper failed.
(L/R) HPCO H/C - The (left/right) side high pressure switch opened during the heat treatment cycle.
Faults Occurring While in AUTO Mode
(L/R) HPR>41F (5C) AFTER 4 HR - The mix temperature in the left or right hopper was above 41°F (5°C) more than four hours.
(L/R) BRL>41F (5C) AFTER 4 HR - The mix temperature in the left or right barrel was above 41°F (5°C) more than four hours.
(L/R) HPR>41F (5C) AFTER PF - The mix temperature in the left or right hopper was above 41°F (5°C) more than four hours following a power failure.
(L/R) BRL>41F (5C) AFTER PF - The mix temperature in the left or right barrel was above 41°F (5°C) more than four hours following a power failure.
(L/R) HPR>59F (15C) - The mix temperature in the left or right hopper exceeded 59°F (15°C).
(L/R) BRL>59F (15C) - The mix temperature in the left or right barrel exceeded 59°F (15°C).
HEAT CYCLE SUMMARY
The HEAT CYCLE SUMMARY screen displays the hours since the last heat cycle, the hours since the product temperature was above 150°F (65.6°C), and the number of heat cycles completed since the last brush clean date. (See Figure 43.)
HEAT CYCLE SUMMARY
HRS SINCE HC |
0 |
HRS SINCE 150.0 |
0 |
HRS SINCE BC |
0 |
Figure 43
HEAT CYCLE DATA
The HEAT CYCLE DATA screen contains a record of up to 366 heat treatment cycles. The most recent heat cycle data will be shown first. Each heat cycle record or page has two screens. The first screen displays the month and day of the heat cycle, the start time and end time, and which side of the machine underwent the heat treatment cycle; L for Left side, R for Right side, and B for both sides. Line 3 displays the total time in each heat cycle phase. Line 4 displays the glycol temperature at the completion of the heat cycle and the page number.
Model C602 |
23 |
Systems, Controls and Operations |
Select the AUTO symbol 
to advance forward through the data pages. Select the OPTIONAL
FLAVOR symbol 
to reverse the page direction. (See Figure 44.)
00/00 |
00:00 |
00:00 |
B |
HEAT |
OVER |
COOL |
RC |
00:00 |
00:00 |
00:00 |
* |
TEMP AT END |
0.0 |
1 |
|
Figure 44
The second screen will have the same page number and display the temperature recorded in each hopper, barrel, and the temperature of the glycol when the heat cycle was terminated. The left hopper and barrel temperature is displayed on line 2 and the right side temperatures on are line 3. The time in the last phase of heat cycle, whether successful or failed, is displayed on line 4.
Select the AUTO symbol 
to advance to the next
page or the OPTIONAL FLAVOR symbol 
to view the previous page. (See Figure 45.)
HOPPER BARREL GLYCOL
000.0000.0 000.0
000.0000.0
PHASE TIME: 00:00 1
Figure 45
Heat Cycle Failure codes will display on the first screen on line 2 if a failure occurred.
(See Figure 46.)
HOPPER BARREL |
GLYCOL |
|
000.0 |
000.0 |
000.0 HT |
000.0000.0
PHASE TIME: 00:00 1
Figure 46
Listed below are variable failure code messages which could appear on line 2.
HT |
Heat Time Too Long |
|
Mix temperature did not rise above 151°F |
|
(66.1°C) in less than 90 minutes. |
CL |
Cool Time Too Long |
|
Mix temperature in the hopper and freezing |
|
cylinder did not fall below 41°F (5°C) in less |
|
than 120 minutes. |
TTTotal Time Too Long
The heat treatment cycle must be completed in no more than 4 hours.
MO |
Mix Out Condition |
|
A mix out condition was detected at the start |
|
or during the heat cycle. |
ML |
Mix Low Condition |
|
The Heat Phase or Cool Phase time was |
|
exceeded and a mix low condition was |
|
present. |
BO |
Beater Overload Condition |
|
A beater overload occurred during the heat |
|
cycle. |
HO |
High Pressure Cut-Out Condition |
|
A high pressure cut-out condition occurred |
|
during the heat cycle. |
PF |
Power Failure |
|
A power failure caused the Heat Phase, |
|
Cool Phase, or Total Cycle Time to exceed |
|
the maximum allowed time. If a power failure |
|
occurs, but the heat treatment cycle does |
|
not fail, an asterisk(*) will appear on the third |
|
line of the display. |
PS |
Power Switch OFF |
|
The power switch was placed into the OFF |
|
position during the heat cycle. |
TH |
Thermistor Switch OFF |
|
A thermistor probe has failed. |
RC |
Record Cleared |
|
Data has not been written to the page or |
|
cleared due to corrupt data. |
OP |
Operator Abort |
|
Indicates the heat cycle was aborted in the |
|
OPERATOR ABORT option in the service |
|
menu. |
PD |
Product Door Not in Place |
|
A product door is not in place or is loose. |
Systems, Controls and Operations |
24 |
Model C602 |
SYSTEM INFORMATION
The SYSTEM INFORMATION is displayed on three separate screens. The first screen contains the control and software version installed in the machine. (See Figure 47.)
SOFTWARE VERSION
C602 CONTROL UVC3
VERSION 1.00
>Next
Figure 47
Select the CALIBRATION symbol 
to advance to the next system information screen containing the software language version. (See Figure 27.)
Language
V1.11r00 English 515
>Next
Figure 48
Select the CALIBRATION symbol 
to advance to the third system information screen containing the model bill of material and machine serial number.
Selecting the CALIBRATION symbol 
again will return to the Menu list. (See Figure 49)
B.O.M. C60233H000
S/N K0000000
>Next
Figure 49
CURRENT CONDITIONS
The CURRENT CONDITIONS screen provides the viscosity readings for the product when the side is running and hopper and barrel temperatures for both sides of the machine. The left column displays the readings for the shake side and the right column displays the soft serve side readings. The bottom line in the display indicates the current glycol temperature. (See Figure 50.)
VISC |
0 |
0.0 |
HOPPER |
41.0 |
41.0 |
BARREL |
41.0 |
41.0 |
GLYCOL |
|
41.0 |
|
|
|
Figure 50
CURRENT CONDITIONS is the only Menu screen that will return the left and right side control panel keys to normal operation. The Menu keys will not be illuminated when this option is selected so shakes can be dispensed and all panel touch keys are fully functional. Use this screen when you wish to remain in the Menu and dispense a shake. Exit the CURRENT CONDITIONS screen and return to the
Menu by selecting the CALIBRATION symbol 
.
Note: All screens from this point forward can only be accessed through the service menu.
TEMPERATURE SCALE
The TEMPERATURE SCALE option allows the service technician to choose the scale in which the machine will display all temperatures. (See
Figure 51.)
TEMPERATURE SCALE
FAHRENHEIT
>Fahrenheit Celsius
Figure 51
To change the scale setting, use the AUTO
symbol 
or OPTIONAL FLAVOR symbol 
to move the cursor along side of the desired temperature scale then touch the CALIBRATION
symbol 
to save the selection and return to the service menu.
Model C602 |
25 |
Systems, Controls and Operations |
STANDBY TEMPERATURE
The STANDBY TEMPERATURE option allows the service technician to adjust the freezing cylinder temperature in the Standby mode. In Standby, the machine will cycle the compressor (and beater) on if the temperature of the product in the freezing cylinder rises above the setpoint. The compressor will cycle off when the temperature of the product in the freezing cylinder drops 4°F (2.2°C) or more below the set point. (See Figure 52.)
STANDBY TEMP
L CUT IN AT : 30.5
CURRENT : 30.5
>Next
Figure 52
Adjust the temperature setting using the AUTO symbol 
to increase the temperature or
OPTIONAL FLAVOR symbol 
to decrease the temperature. Save the setting by selecting the
CALIBRATION symbol 
to advance to the next screen for the right side freezing cylinder Standby temperature setting. (See Figure 53.)
STANDBY TEMP
R CUT IN AT : 30.5
CURRENT : 30.5
>Next
Figure 53
Select the CALIBRATION symbol 
to save the setting and return to the Service Menu.
HOPPER TEMPERATURE
The HOPPER TEMPERATURE menu allows the service technician to adjust the hopper temperature by which the glycol pump and the left and right glycol solenoids are controlled when the machine is operating in AUTO or STANDBY modes.
Hopper cooling is activated when the mix temperature rises above the set point temperature. When the temperature drops 2°F (1°C) below the set point the hopper cooling is discontinued. (See Figure 54.)
HOPPER TEMP
L CUT IN AT : 39.0
CURRENT : 39.0
>Next
Figure 54
Adjust the temperature setting using the AUTO symbol 
to increase the temperature or
OPTIONAL FLAVOR symbol 
to decrease the temperature. Save the setting by selecting the
CALIBRATION symbol 
to advance to the next screen for the right side Hopper temperature setting. (See Figure 55.)
HOPPER TEMP
R CUT IN AT : 39.0
CURRENT : 39.0
>Next
Figure 55
Select the CALIBRATION symbol 
to save the setting and return to the Service Menu.
Systems, Controls and Operations |
26 |
Model C602 |
GLYCOL TEMPERATURE
The GLYCOL TEMPERATURE allows the Service Technician to adjust the glycol temperature used to control the glycol heater in the HEAT and HOLD phases of the Heat Treatment Cycle.
When the glycol temperature falls 6°F (3.3°C) or more below the set point, the glycol heater is activated. When the glycol temperature rises above the set point, the heater is de-activated. The factory glycol temperature setting is 178°F (81°C). (See Figure 56.)
GLYCOL TEMPS
HEATING : 178.0
CURRENT : 41.0
>Next
Figure 56
Adjust the temperature setting using the AUTO symbol 
to increase the temperature or
OPTIONAL FLAVOR symbol 
to decrease the temperature. Save the setting by selecting the
CALIBRATION symbol 
to advance to the next screen for the right Glycol temperature setting in the HOLDING phase. (See Figure 57.)
GLYCOL TEMPS
HOLDING : 177.0
CURRENT : 41.0
>Next
Figure 57
The GLYCOL HOLDING TEMPERATURE set point controls the glycol heater in the HOLDING phase of the Heat Treatment Cycle. When the glycol temperature is 6°F (3.3°C) or more below the set point, the glycol heater is activated. When the glycol temperature rises above the set point, the heater is de-activated. The factory setting for the glycol holding temperature is 177°F (81°C).
Adjust the temperature setting using the AUTO symbol 
to increase the temperature or OPTIONAL FLAVOR symbol 
to decrease the
temperature. Select the CALIBRATION symbol 
to save the setting and return to the Service Menu.
VISCOSITY SETTING
The viscosity setting option allows the service technician to adjust the viscosity at which the compressor cycles off during the AUTO mode of operation.
Select the AUTO symbol 
to move the cursor up to the left or right side viscosity setting. (See Figure 58.)
VISCOSITY SETTING
LEFT
RIGHT
>Exit
Figure 58
Shake Viscosity Setting (Left):
Select the AUTO symbol 
to increase the viscosity
setting or the OPTIONAL FLAVOR symbol 
to decrease the setting. (See Figure 59.)
VISCOSITY SETTING
LEFT = 4000HD
CURRENT = 0
Figure 59
Note: A Hedlund (HD) is a Taylor factory defined unit of measure representing the relative product viscosity (thickness). Product in the shake machines is normally set at a viscosity ranging from 4,000 to 7,500 HD’s to accomplish a neutral frozen product temperature around 23° - 26°F (-5 to -3.3°C).
While the beater motor is on, the current viscosity indicated on the display is updated continually. When the beater motor is off, this value is zero.
Select the CALIBRATION symbol 
to save the setting and return the Service Menu.
Model C602 |
27 |
Systems, Controls and Operations |
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