Carrier C708, C709, C717, C716 Service Manual

Models C708/C709/C716/C717

Heat Treatment

Soft Serve Freezers

Service Manual

059061-S

6/15/05

Table of Contents

Section 1: Introduction 1...............................................

Safety 2.............................................................

Refrigerant 2.........................................................

Model C708 Specifications 4...........................................

Model C709 Specifications 5...........................................

Model C716 Specifications 6...........................................

Model C717 Specifications 7...........................................

General Installation Instructions 8.......................................

Running Specifications 11...............................................

Important to the Operator 12............................................

Section 2: Controls, Systems and Operations 17..........................

Universal Control Programming 18.......................................

Heat Treatment Cycle 33...............................................

Heat Treatment Graph 34...............................................

Freezer Lock-Out 35...................................................

Power Interrupt 38.....................................................

Pump Operation 39....................................................

Timers 40.............................................................

Jumper Pins - UVC3 41.................................................

Beater Stir Cycles 42...................................................

Setting Viscosity 42....................................................

C708/C709 Control Overview 43.........................................

C716/C717 Control Overview 44.........................................

Refrigeration System - Hot Gas Treatment 45.............................

Checking and Setting Refrigeration Valves 46.............................

Refrigeration Schematic 47..............................................

Refrigeration System Components 48....................................

Models C708/C709/C716/C717 Table of Contents

Table of Contents - Page 2

Section 3: Troubleshooting 51...........................................

General Troubleshooting Guide 52.......................................

Electrical Troubleshooting Guide 56......................................

C708/C709 Electrical T r oubleshooting Guide 57...........................

C716/C717 Electrical T r oubleshooting Guide 58...........................

Pump Style Freezer Troubleshooting 59..................................

Solenoid Valve Failure Troubleshooting 60................................

Bacteria Troubleshooting 62.............................................

Section 4: Parts 65......................................................

Parts Warranty Explanation 66...........................................

Model C708 Exploded View 68..........................................

Operator Parts (Model C708) 71........................................

Model C709 Exploded View 72..........................................

Operator Parts (Model C709) 75........................................

Model C716 Exploded View 76..........................................

Operator Parts (Model C716) 79........................................

Model C717 Exploded View 80..........................................

Operator Parts (Model C717) 83........................................

Control A. - X59239- (Model C708) 84....................................

Control A. - X59240- (Model C709) 85....................................

Control A. - X59497- (Model C716) 86....................................

Control A. - X59498- (Model C717) 87....................................

Box A.-Cap & Relay - X56931-27 (Model C708) 88.........................

Box A.-Cap & Relay - X58849-27 (Model C709) 89.........................

Box A.-Cap & Relay - X59499-27 (Model C716) 90.........................

Box A.-Cap & Relay - X59500-27 (Model C717) 91.........................

Switch A.-Draw - X56147 (C708/C709) 92.................................

Switch A.-Dual Lever - X62400 (C716/C717) 93...........................

Actuator A.-Draw Switch - X62401 (C716/C717) 94........................

Pump A.-Mix Simplified - X57029- (C708/C716) 95.........................

Table of Contents Models C708/C709/C716/C717

Table of Contents - Page 3

Door and Beater Assembly (Model C708) 96..............................

Door and Beater Assembly (Model C709) 97..............................

Plate A.-Dec - X56959 (C708) / X58860 (C709) 98.........................

Door and Beater Assembly (Model C716) 99..............................

Door and Beater Assembly (Model C717) 100..............................

Plate A.-Dec - X62127 (C716) / X62128 (C717) 101.........................

Accessories 102........................................................

Parts List 105...........................................................

Wiring Diagrams 127....................................................

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 June, 2005 Taylor

The word T aylor and the Crown design are registered trademarks in the United States of America and certain other countries.

Models C708/C709/C716/C717 Table of Contents

Taylor Company 750 N. Blackhawk Blvd. Rockton, IL 61072

Notes:

Table of Contents Models C708/C709/C716/C717

Section 1: Introduction

S Safety S Refrigerant S Specifications S General Installation Instructions S Running Specifications S Important to the Operator

Models C708/C709/C716/C717

Introduction

Safety

______________________________

Refrigerant

______________________________

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.

This equipment must be properly grounded. Failure to follow this instruction may result in serious electrical shock.

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. Failure to follow this instruction may result in electrocution.

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.

These machines must be placed on a level surface. Failure to comply may result in personal injury or equipment damage.

DO NOT install the unit 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.

These machines are designed to operate indoors, under normal ambient temperatures of 70°-75°F (21°-24°C). The machines have 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.

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.

If the crossed out wheeled bin symbol is affixed to this product, it signifies that this product is compliant with the EU Directive as well as other similar legislation in effect after August 13, 2005. Therefore, it must be collected separately after its use is completed, and cannot be disposed as unsorted municipal waste.

The user is responsible for returning the product to the appropriate collection facility, as specified by your local code.

For additional information regarding applicable local laws, please contact the municipal facility and/or local distributor.

050920

Introduction

Models C708/C709/C716/C717

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.

Models C708/C709/C716/C717

Introduction

Model C708 Specifications

Freezing Cylinder

One, 3.4 quart (3.2 liter)

Mix Hopper

One, 20 quart (18.9 liter)

Beater Motor

One, 1.5 hp

Refrigeration Unit

One, approximately 9,500 btu/hr compressor. Refrigerant R404A.

Electrical

One dedicated connection.

Electrical

208-230/60/1 Air 30 23 208-230/60/3 Air 25 18 220-240/50/1 Air 25 21 220-240/380-415/50/3 Air 12 9

This unit may be manufactured in other electrical characteristics. Refer to the local Taylor Distributor

Maximum Fuse Size

Minimum

CircuitAmpacity

for availability. (For exact electrical information, always refer to the data label of the unit.)

Air Cooled

Clearance: A minimum of 6” (152 mm) is required on both sides, and the back of the unit placed against the wall to prevent recirculation of warm air. An optional air discharge chute is available to direct heated air exhaust upward. No clearance is required on the right side if the air discharge chute is used.

Water Cooled

Water inlet and drain connections on the right side or under the side of the base, 3/8” FPT.

Dimensions

Width: 18-1/4” (464 mm) Height: 33-7/8” (860 mm) Depth: 34” (864 mm) Floor Clearance: Rests on a plastic pad directly on counter top.

Approximate Weights

Net: 369 lbs. (167.4 kgs) Crated: 470 lbs. (213.2 kgs) Volume:30.6cu.ft.(0.86cum)

Introduction

Figure 1

Note: Shown with optional air discharge chute.

Models C708/C709/C716/C717

Model C709 Specifications

Freezing Cylinder

One, 3.4 quart (3.2 liter)

Mix Hopper

One, 20 quart (18.9 liter)

Beater Motor

One, 1.5 hp

Refrigeration Unit

One, approximately 9,500 btu/hr compressor. Refrigerant R404A.

Electrical

One dedicated connection.

Electrical

208-230/60/1 Air 30 22 208-230/60/3 Air 15 13 220-240/50/1 Air 20 18 220-240/380-415/50/3 Air 10 8

This unit may be manufactured in other electrical characteristics. Refer to the local Taylor Distributor

Maximum Fuse Size

Minimum

CircuitAmpacity

for availability. (For exact electrical information, always refer to the data label of the unit.)

Air Cooled

Water Cooled

Water inlet and drain connections on the right side or under the side of the base, 3/8” FPT.

Dimensions

Width: 18-1/4” (464 mm) Height: 33-7/8” (860 mm) Depth: 34” (864 mm) Floor Clearance: Rests on a plastic pad directly on counter top.

Approximate Weights

Net: 335 lbs. (152.0 kgs) Crated: 375 lbs. (170.1 kgs) Volume:30.6cu.ft.(0.86cum)

Models C708/C709/C716/C717

Figure 2

Note: Shown with optional air discharge chute.

Introduction

Model C716 Specifications

Freezing Cylinder

Two, 3.4 quart (3.2 liter)

Mix Hopper

Two, 20 quart (18.9 liter)

Beater Motor

Two, 1.5 hp

Refrigeration Unit

Two, approximately 9,500 btu/hr compressors Refrigerant R404A.

Electrical

Maximum

Electrical

208--230/60/1 Air

208--230/60/1 Water 30 30 23 23

208--230/60/3 Air 25 25 20 18

220--240/50/1 Air 30 25 23 20 380--415/50/3N~Air 12 12 12 9

Fuse Size

Left Right Left Right

35 30 26 23

Minimum

Circuit

Ampacity

This unit may be manufactured in other electrical characteristics. Refer to the local Taylor Distributor for availability. (For exact electrical information, always refer to the data label of the unit.)

Air Cooled

Clearance: A minimum of 3” (76 mm) is required around all sides. Install the deflector provided to prevent recirculation of warm air.

Water Cooled

Water inlet and drain connections under the side of the base, 1/2” FPT.

Dimensions

Width: 25-7/16” (646 mm) Height: 60” (1524 mm) Depth: 36-3/16 (919 mm) Floor Clearance*: 4-3/4 (121 mm)

*Mounted on standard casters

Approximate Weights

Net: 778 lbs. (353 kgs) Crated: 816 lbs. (370 kgs) Volume: 66.5 cu. ft. (1.88 cu. m.)

Introduction

Figure 3

Models C708/C709/C716/C717

Model C717 Specifications

Freezing Cylinder

Two, 3.4 quart (3.2 liter)

Mix Hopper

Two, 20 quart (18.9 liter)

Beater Motor

Two, 1.5 hp

Refrigeration Unit

Two, approximately 9,500 btu/hr compressors Refrigerant R404A.

Electrical

Maximum

Electrical

208--230/60/1 Air 208--230/60/3 Air 20 15 16 13

208--230/60/3 Water 15 15 13 13 220--240/50/1 Air 25 20 20 17 380--415/50/3N~Air 12 10 10 7

Fuse Size

Left Right Left Right

30 30 24 21

Minimum

Circuit

Ampacity

Air Cooled

Clearance: A minimum of 3” (76 mm) is required around all sides. Install the deflector provided to prevent recirculation of warm air.

Water Cooled

Water inlet and drain connections under the side of the base, 1/2” FPT.

Dimensions

Width: 25-7/16” (646 mm) Height: 60” (1524 mm) Depth: 36-3/16 (919 mm) Floor Clearance*: 4-3/4 (121 mm)

*Mounted on standard casters

Approximate Weights

Net: 728 lbs. (330 kgs) Crated: 766 lbs. (348 kgs) Volume: 66.5 cu. ft. (1.88 cu. m.)

Models C708/C709/C716/C717

Figure 4

Introduction

General Installation Instructions

The following are general installation instructions. For complete installation details, please see the check out card.

Disconnect Switch

If the unit has no plug, a separate disconnect switch must be installed, or another alternate means to disconnect power must be implemented.

Air Cooled Units

C708 & C709: These units require a minimum of 6” (152 mm) air clearance on both sides, and the back of the unit placed against the wall to prevent recirculation of warm air. An optional air discharge chute is available to direct heated air exhaust upward. No clearance is required on the right side if the air discharge chute is used.

C716 & C717: These units require a minimum of 3” (76 mm) air clearance around all sides. Install the deflector provided to prevent recirculation of warm air.

Refrigeration

Main Compressor:

Air cooled units: 40 oz (1,134 g) of R404A. Water cooled units: 38 oz (1,077g) of R404A.

Gear Alignment and Rear Shell Bearing

1. Make certain the drive shaft(s) can easily slide in and out of the female socket on the gear unit(s).

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.

Beater Rotation

REMEMBER TO DISCONNECT ALL

POWER TO THE FREEZER! Failure to follow this

instruction may result in electrocution or severe personal injury from hazardous moving parts.

1. Remove the door assembly, beater and scraper blades.

2. Place a magnet over the door switch in the front panel. This deactivates the safety feature which prevents the operation of the machine when the door is not installed.

3. Place the power switch in the ON position.

4. Press the WASH symbol on the control panel. This activates the beater motor only.

5. Look into the freezing cylinder. The drive shaft should be turning clockwise. (If necessary, lift the swing panel to view rotation.)

6. Press the WASH symbol again to stop the beater motor.

Note: Repeat these steps for the other side on the model C716 & C717.

To correct rotation on a single-phase unit, exchange leads inside the beater motor. (Follow the diagram printedonthemotor.)

To correct rotation on a three-phase unit, interchange any two incoming power supply lines at freezer main terminal block only.

REMEMBER TO DISCONNECT ALL

POWER TO THE FREEZER! Failure to follow this

instruction may result in electrocution or severe personal injury from hazardous moving parts.

Introduction

Models C708/C709/C716/C717

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.

Installation of Optional Syrup Rail X48015-27 (C708 & C709 Only)

The syrup rail can mount to only the left side of the C708 or C709 if the top air discharge chute is not used.

3. Press the PUMP symbol 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.

Note: Repeat these steps for the other side on the model C716 & C717.

REMEMBER TO DISCONNECT ALL

POWER TO THE FREEZER! Failure to follow this

instruction may result in electrocution or severe personal injury from hazardous moving parts.

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.

The syrup rail can be mounted to either the left or right side of the C708 or C709 units if a top air discharge chute is used.

Perform the following steps to mount the syrup rail on the side of a unit where a top air discharge chute is not installed:

1. Remove the (4) panel screws as shown in Figure 5.

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.

Models C708/C709/C716/C717

Figure 5

2. Install the Mounting Assembly – Syrup Rail (X57317) using the (4) Spacers (053600) and the (4) Screws-1/4-20X3 HEX CAP (025984) with (4) Washers (000655).

3. Install the (4) Plugs – Square Tubing (057381) in the ends of the Mounting Assembly – Syrup Rail (X57317).

4. Install the (3) Holding Collars (046551) using the (3) Screws-10-32X3/4 OVAL HD-SS.

5. Hang the Syrup Rail Assembly (048015-27) on the holding collars.

Introduction

050920

Perform the following steps to mount the syrup rail on the side of a unit where a top air discharge chute is installed:

1. Three holes must be created in the side of the chute as shown in Figure 6. (See the Syrup Rail Instruction 048014-DRW included with the Syrup Rail Kit.)

Syrup Rail Operating Instructions

1. Remove the stainless steel syrup jar with topping pump from the syrup rail. Check the water level in the well. Make sure the water is filled to the indicating mark on the inside wall (16 oz [454 g]). Check the water level daily.

2. Place the heater switch in the ON position. The heating process will take approximately 1-1/4 hours.

3. Prepare a pail with an approved 100 PPM sanitizing solution. USE WARM WATER AND FOLLOW THE MANUFACTURER’S SPECIFICATIONS.

4. Sanitize the pump by placing the entire assembly in the solution and pump the solution through the pump until sanitized.

5. Fill the heated and room temperature syrup jars with toppings. Place the topping pump in the heated syrup jar. Sanitize the ladle and place it in the room temperature jar.

Figure 6

2. Install the (3) Nutserts (021106) in the panel.

3. Install the (3) Holding Collars (046551) using the (3) Screws-10-32X3/4 OVAL HD-SS.

4. Hang the Syrup Rail Assembly (048015-27) on the holding collars.

Introduction

Models C708/C709/C716/C717

Running Specifications

Pressures/Temperatures

The following are the Taylor Company recommended settings for various components within these models. The freezers in this manual use refrigerant R404A.

Note: These settings apply to both sides of the C716 and C717.

EPR Valve = 60 psi (414 kPa) DBV Valve = 10 - 11 psi (69 - 76 kPa) OPR Valve = 40 psi (276 kPa)

Expansion Valve (AXV)

Air Cooled - 21 psi (145 kPa) Water Cooled - 21 psi (145 kPa) for a normal product of 16° to 18°F (-8.8° to -7.7°C).

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

Pressures

F C PSI

70° 21.1° 240 -270

(1,655 - 1,862 kPa)

80° 26.7° 270 -300

(1,862 - 2,069 kPa)

90° 32.2° 300 -340

(2,069 - 2,344 kPa)

100° 37.8° 340 - 380

(2,344 - 2,620 kPa)

Water Valve

Expansion Valve Adjustment (AXV)

Place your gauge on the access valve on the suction line (located at the compressor).

Adjust higher or lower by turning the adjustment screw. Clockwise turns raise the pressure and counterclockwise lower the pressure.

Note: Make expansion valve adjustments with mix in the cylinder and the freezer in the AUTO mode. Be sure to allow adequate time for the pressure to stabilize.

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

Place your gauge on the high side access port of the compressor. Turning the adjustment stem on the water valve clockwise will lower the pressure.

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.

Models C708/C709/C716/C717

Introduction

Important to the Operator

C716/C717

C708/C709

Figure8

ITEM DESCRIPTION

1 POWER SWITCH 2 VACUUM FLUORESCENT DISPLAY 3 KEYPADS 4 MIX OUT INDICATOR 5 STANDBY INDICATOR 6 MIX LOW INDICATOR 7 SELECT KEY 8 SERVICE MENU KEY 9 BRUSH CLEAN COUNTER

10 ARROW KEYS

11 SYRUP HEATER KEY

NOTE: MODELS C709 & C717 DO NOT HAVE MIX PUMP KEYS.

Figure 9

050622

Introduction

Models C708/C709/C716/C717

C708/C709

C716/C717

Figure 10

Figure 11

Symbol Definitions

To better communicate in the International arena, symbols have replaced words on many of our operator switches, function, and fault indicators. Your Taylor equipment is designed with these International symbols.

ITEM

1 AUTO 2 HEAT CYCLE 3 WASH 4 MIX PUMP (C708/C716 ONLY) 5 MIX OUT 6 STANDBY 7 HEATER-RIGHT SIDE (C716/C717 ONLY) 8 MIX LOW

9 SELECT 10 MENU DISPLAY 11 BRUSH CLEAN COUNTER

Models C708/C709/C716/C717

DESCRIPTION

ITEM DESCRIPTION

12 DOWN ARROW

13 UP ARROW *14 HEATER *15 STANDBY *16 MIX OUT *17 MIX LOW *18 MIX PUMP *19 WASH *20 HEAT CYCLE *21 AUTO

*LEFT SIDE OF C716/C717 ONLY

Introduction

Power Switch

When placed in the ON position, the power switch allows control panel operation.

Fluorescent Display

The fluorescent display 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.

Adjustable Draw Handle

This unit features an adjustable draw handle(s) to provide the best portion control, giving a better, consistent quality to your product and controlling food costs. The draw handle should be adjusted to provide a flow rate of 5 to 7-1/2 oz (142 to 213 g) of product by weight per 10 seconds. To INCREASE the flow rate, turn the screw CLOCKWISE, and COUNTERCLOCKWISE to DECREASE the flow rate. (See Figure 12.)

10354

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.

HEAT MODE - When the HEAT MODE symbol is illuminated, the freezer is in the process of a heat cycle.

BRUSH CLEAN COUNTER - When the BRUSH CLEAN COUNTER display has counted down to “1”, the machine must be disassembled and brush cleaned within 24 hours.

Figure 12

Beater Motor Overload

C708/C709: The beater motor overload is located in

the service panel on the left side. C716/C717: The beater motor overloads are located in the rear panel.

The overload protects the beater motor from an overload condition. Should an overload occur, the reset mechanism will trip. To properly reset the freezer, place the power switch in the OFF position. Press the reset button firmly. Turn the power switch to the ON position. Touch the WASH symbol and observe the freezer’s performance.

WARNING: Do not use metal objects to

press the reset button. Failure to comply may result

in severe personal injury or death from electrical shock.

If the beater motor is turning properly, touch the WASH symbol to cancel the cycle. Touch the AUTO symbol to resume normal operation. If the freezer shuts down again, contact your authorized service technician.

Introduction

Models C708/C709/C716/C717

Air/Mix Pump Reset Mechan ism (C708 & C716 Only)

C708: The reset button for the pump is located on

the left side. C716: The reset buttons for the pumps are located in the rear panel.

The reset protects the pump from an overload condition. Should an overload occur, the reset mechanism will trip. To reset the pump, press the reset button firmly.

WARNING: Do not use metal objects to

press the reset button. Failure to comply may result

in severe personal injury or death.

Condenser Fan Motor

The condenser fan motor is driven by the software. The L1 to the fan is connected to the interface board at J6-6. The condenser fan is programmed to run any time the compressor is on and to stay running for 30 seconds after the compressor cycles off. The fan motor runs constantly through heat cycles regardless of the compressor status, then cycles off 30 seconds after the compressor cycles off at the end of the Heat Cycle and subsequent Standby Mode.

Models C708/C709/C716/C717

Introduction

Notes:

Introduction

Models C708/C709/C716/C717

Section 2:

Controls, Systems and Operations

S Universal Control Programming S Heat Treatment Cycle S Heat Treatment Graph S Freezer Lock-out S Power Interrupt S Pump Operation S Timers S Jumper Pins - UVC3 S Beater Stir Cycles S Setting Viscosity S Control Overview S Refrigeration System - Hot Gas Treatment S Checking and Setting Refrigeration Valves S Refrigeration Schematic S Refrigeration System Components

Models C708/C709/C716/C717

Controls, Systems and Operations

Universal Control Programming

Operating Screen Descriptions

______________________________

The fluorescent display located in the center of the control panel is normally blank during the daily operation of the machine. The display is activated when the SEL symbol or the Manager’s Menu is selected. The display screen will also alert the operator of specific faults detected by the control.

Note: The displays illustrated in this section are those seen on the Models C708/C709. The Model C716/C717 versions may vary slightly.

Power Up Memory (Initializing)

The seven segment display should display “00” during the initializing sequence.

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.

Language Initialization

is another language initialization fault. English is the factory default setting.

System Data

System data is protected separately from the rest of the data in memory. System data includes variables that change frequently such as the mode the machine is in, lockout status, serving counters, fault codes, and others. While System Data is being checked the following screen is displayed.

Initializing

System Data

If the System Data is corrupted, the machine is set to OFF, the serving counters are set to zero, and the faults are cleared. A “SYSTEM CRC ERR” fault is set and displayed on the VFD. An acknowledgement (SEL key) is required.

The UVC platform supports multiple languages by keeping specific strings in battery backed RAM. After power-up or a CPU reset, the strings are tested to see if the language strings are present and not corrupted. If the strings are present and not corrupted, initialization continues. Otherwise, the operator is prompted to select a language. While language strings are being checked for integrity, the following screen is displayed.

Initializing

Language

Note: If there is a language initialization fault, the machine will force a language selection prior to the initializing sequence. The standard menu LED’s should light, as if it were in a menu. If a language has been selected, the unit is powered down, the machine should not ask for a language unless there

Configuration Data

Configuration data is separate from the rest of the data in the memory. Configuration data is information entered through operator and service menus. While Configuration Data is being checked the following screen is displayed.

Initializing

Config Data

If Configuration data is corrupted, all user and service settings are set to defaults. A “CONFIG CRC ERR” fault is set and displayed on the VFD. The system will continue to operate in its previous mode but according to default settings.

Controls, Systems and Operations

Models C708/C709/C716/C717

Lockout Data

Lockout data is protected separately from the rest of the data in the memory. While the Lockout Data is being checked, the following screen is displayed.

Once the system has initialized, the number of days until brush cleaning is required is indicated on the control panel. The SAFETY TIMEOUT screen will be displayed with the alarm on for 60 seconds or until any control symbol is touched.

Initializing

Lockout Data

If Lockout Data is corrupted, all lockout history data is cleared. A “LOCKOUT CRC ERR” fault is displayed.

After the memory integrity has been tested, the Safety Timeout screen will be displayed.

Heat Cycle Data

Heat cycle data is checked separately from the rest of the data in memory. Each individual Heat Cycle Data record is monitored for corruption individually. At the start of a heat cycle, the next Heat Cycle data record is cleared and data for the heat cycle is writtentoit.ThecurrentHeatCycleDatais displayed as the first heat cycle record in the HEAT CYCLE DATA menu option.

The heat cycle data records are checked for integrity when the record is accessed, presently only through the HEAT CYCLE DATA menu option. (For

additional Heat Cycle Data information, see page 26.)

SAFETY TIMEOUT

ANY KEY ABORTS

Power Switch OFF

After the safety timeout has been completed and the power switch is OFF, the following screen is displayed.

POWER SWITCH OF F

-- = -- = -- = -- = -- = -UNIT CLEANED

Power Switch ON

When the power switch is placed in the ON position, the control panel touch keys become operative. The fluorescent display will be either blank or indicate that the unit has been cleaned.

UNIT CLEANED

Models C708/C709/C716/C717

Controls, Systems and Operations

Heat Cycle

The HEAT symbol on the control panel is 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).

International Models Only:

Some International models will continuously display the temperature of the mix hopper when the power switch is in the ON position.

HOPPER 21.0

UNIT CLEANED

DO NOT DRAW

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.

HOT PRODUCT

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 hopper and freezing cylinder 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 35 minutes.

If the control is set for international configuration, the following screen will appear when the heat symbol is touched.

ARE YOU SURE

>Yes

Use the up or down arrow symbol to move the cursor to “YES”. Touch the SEL symbol to immediately start a heat cycle.

Note: The machine must be in AUTO or STANDBY and have sufficient mix in the hopper before the machine can successfully enter the HEAT mode of operation.

Manager’s Menu

______________________________

The Manager’s Menu is used to enter the operator function displays. To access the Menu, touch the center of the CONE symbol on the control panel. The arrow symbols, the SEL symbol and the CONE symbol will be lit when the ACCESS CODE screen is displayed.

13201

The final phase of the heat treatment cycle is the cooling phase. The freezer must cool the mix below 41°F (5°C) within 90 minutes.

When the entire heat cycle has been completed, the HEAT symbol will no longer be illuminated. The machine will enter the STANDBY mode (STANDBY symbol illuminates). The machine can be placed in AUTO or left in STANDBY.

Controls, Systems and Operations

SEL

Figure 13

Models C708/C709/C716/C717

In the Menu program, the arrow symbols and the SEL symbol will function as menu keys.

S UP ARROW - increases the value above the

cursor and is used to scroll upward in text displays.

S DOWN ARROW - decreases the value

above the cursor and is used to scroll downward in text displays.

S SEL - advances the cursor position to the

right and is used to select menu options.

There is a two minute time-out in effect during the Manager’s Menu. While in the Manager’s Menu, if no activity occurs within a two minute period, the display will exit to the Main Menu. There is one exception to this time-out, and that is the Current Conditions Display.

If an incorrect number is entered for the access code, the display will exit the Menu program when the SEL symbol is touched.

13202

SEL

Figure 14

Note: The machine will continue operation in the mode it was in when the Menu was selected. However, the control keys will not be lit and are non--functional when the Manager’s Menu is displayed. The control keys are functional in the Manager’s Menu when the CURRENT CONDITIONS screen is displayed. (See CURRENT CONDITIONS on page 28.)

Entering Access Code

With the ACCESS CODE screen on the display, use the SEL symbol to set the first code number in the cursor position. When the correct number is selected, touch the SEL symbol to move the cursor to the next number position.

ENTER ACCESS CODE

83 0 9

Continue to enter the proper access code numbers (8309) until all four numbers are displayed, then touch the SEL symbol. The Manager’s Menu list will display on the screen, provided the correct access code is entered.

Manager Menu Options

Touch the ARROW symbols to move up or down through the Menu. Select a Menu option by touching the SEL symbol. Exit the Menu program by selecting EXIT FROM MENU or touch the CONE symbol.

The following menu options are listed in the Manager’s Menu.

EXIT FROM MENU

RESET DRAW COUNTER

SET CLOCK

AUTO HEAT TIME

AUTO START TIME

STANDBY MODE

BRUSH CLEAN CYCLE

MIX LEVEL AUDIBLE

F AULT DESCRIPTION

LOCKOUT HISTORY

HEAT CYCLE SUMMARY

HEAT CYCLE DATA

SYSTEM INFORMATION

CURRENT CONDITIONS

Models C708/C709/C716/C717

Controls, Systems and Operations

Exit From Menu

Selecting “EXIT FROM MENU” will exit the Manager’s Menu and the return the control panel symbols to normal operation.

To change the date or time, select the SET CLOCK option in the menu. Touch the UP arrow symbol to advance the arrow from Exit to Change, then touch the SEL symbol to select the Change option.

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.

SERVINGS COUNTER

> Next

Reset the SERVING COUNTER by touching the SEL symbol to advance to the next screen. Touch the UP arrow symbol to move the arrow (>) to YES and touch the SEL symbol. The servings counter will reset to zero and exit back to the Manager’s Menu.

RESET DRAW COUNTER

Yes

>No

Set Clock

SET CLOCK 12:01 2/21/2004

Change

>Exit

Change the time by touching the UP arrow with the cursor under the hour position. Move the cursor to the minutes position by touching the SEL symbol. Once the correct minutes are entered, touch the SEL symbol to advance the cursor to the month.

SET CLOCK

:01 2/21/2004

>Exit

Enter the correct month, day, and year. Then touch the SEL symbol to advance to the DAYLIGHT SAVING TIME screen.

The SET CLOCK option allows the Manager 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.

SET CLOCK 12:01 2/21/2004

NO CHANGES ALLOWED

Press Any Key

Controls, Systems and Operations

DAYLIGHT SAVING TIME

ENABLED

> Enable

Disable

The Daylight Saving feature, when enabled, will automatically adjust the control clock for daylight saving time. To disable the Daylight Saving Time feature, touch the DOWN arrow to move the arrow to “Disable”. Then touch the SEL symbol to save the new setting.

Models C708/C709/C716/C717

Auto Heat Time

The AUTO HEAT TIME screen allows the Manager to set the time of day in which the heat treatment cycle will start.

AUTO HEAT TIME

00:00

Change

>Exit

To set the AUTO HEAT TIME, touch the UP arrow symbol to move the arrow to “Change”. Then touch the SEL symbol. The screen will display the time with the cursor under the hour position.

AUTO HEAT TIME

:00

Touch the arrow symbols to increase or decrease the hour to the desired setting. Then move the cursor to the minutes position by touching the SEL symbol. Adjust the setting for minutes. Then touch the SEL symbol to save the setting and return to the AUTO HEAT TIME screen. Touch the SEL symbol to exit the screen and return to the Menu.

AUTO START TIME

00:00

Change

>Exit

Program the AUTO START TIME by touching the UP arrow symbol to move the arrow to “Change”. Touch the SEL symbol to advance to the next screen.

AUTO START TIME

:00

Use the arrow symbols to program the AUTO START TIME by increasing or decreasing the hour setting above the cursor. Touch the SEL symbol to advance the cursor and program the minutes setting. Touch the SEL symbol to return to the previous screen with the new time setting displayed. Touch the SEL symbol to exit the screen and return to the Menu.

Auto Start Time

The AUTO START TIME option allows the Manager 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 also be Disabled and require starting the AUTO mode manually.

AUTO START TIME

DISABLED

Enable

> Disable

Enable the AUTO START TIME by touching the UP arrow symbol to move the arrow up to Enable. Touch the SEL symbol to advance to the next screen.

Standby Mode

The STANDBY option is used to manually place the machine in the standby mode during long, no draw periods. Select the STANDBY screen from the Manager’s Menu. Touch the SEL symbol to activate Standby. Standby may also be entered by touching the STANDBY key when not in the Manager’s Menu.

Discontinue Standby operation by exiting the Manager’s Menu and select the AUTO mode.

STANDBY MODE

> EXIT

Models C708/C709/C716/C717

Controls, Systems and Operations

Brush Clean Cycle

The BRUSH CLEAN CYCLE option allows the Manager 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.

BRUSH CLEAN CYCLE

No Changes Allowed

Press any Key

Disable the audible tone feature by touching the DOWN arrow symbol to move the arrow to “Disable”. Touch the SEL 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.

Fault Description

The FAULT DESCRIPTION display will indicate if there is a fault with the freezer and where the fault occurred. When no faults are detected, the following screen will be displayed.

Change the number of days between brush clean intervals by using the arrow symbols. Touch the SEL 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.

BRUSH CLEAN CYCLE

TIME 14 DAYS

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.

MIX LEVEL AUDIBLE

> Enable

Disable

FAULT DESCRIPTION NO FAULT FOUND

Touch the SEL symbol to display the next fault found or return to the Menu if no other faults exist. Touching the SEL 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 - Place the power switch in the OFF position. Press the beater reset button firmly. Place the power switch in the ON position and restart in AUTO.

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 in AUTO.

Controls, Systems and Operations

Models C708/C709/C716/C717

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Carrier C708, C709, C717, C716 Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual