Taylor C708, C709, C716, C717 Service manual

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Page 1

SERVICE MANUAL

Model C708/C709/C716/C717

Heat Treatment

Soft Serve Freezers-R449A Machines

Original Service Instructions

059061-SP

6/13/05 (Original Publication)

(Updated 7/21/2023)

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CAUTION: Information in this manual is intended to be used by authorized Taylor service technicians only.

Note: Continuing research results in steady improvements; therefore, information in this manual is subject to change without notice.

Note: Only instructions originating from the factory or its authorized translation representative(s) are  considered to be the original set of instructions.

059061-SP

Any unauthorized reproduction, disclosure, or distribution of copies by any person of any portion of this work may be a violation of Copyright Law of the United States of America and other countries, could result in the awarding of Statutory Damages of up to $250,000 (17 USC 504) for infringement, and may result in further civil and criminal penalties.  All rights reserved.

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

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Section 1: Introduction

Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

Refrigerant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

Compressor Warranty Disclaimer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

Model C708 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5

Model C709 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7

Model C716 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9

Model C717 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11

General Installation Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-13

Running Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-16

Remote Monitoring Commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-17

To the Operator. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-19

Section 2: Controls

Universal Control Programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

Heat Treatment Cycle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-18

Heat Treatment Graph . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-19

Freezer Lock-Out . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-20

Power Interrupt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-23

Pump Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-24

Timers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-25

Jumper Pin Charts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-27

Beater Stir Cycles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-29

Setting Viscosity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-30

C708/C709 Control Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-31

C716/C717 Control Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-34

Universal Control Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-37

Refrigeration System—Hot Gas Treatment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-44

Checking and Setting Refrigeration Valves. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-45

Refrigeration Schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-46

Refrigeration System Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-47

Table of Contents

Section 3: Troubleshooting

General Troubleshooting Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2

Electrical Troubleshooting Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5

C708/C709 Electrical Troubleshooting Guide. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6

C716/C717 Electrical Troubleshooting Guide. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7

Pump Style Freezer Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8

Solenoid Valve Failure Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9

Bacteria Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-11

059061-S i

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Table of Contents

Section 4: Parts

Parts Warranty Explanation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2

Model C708 Exploded View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3

Operator Parts (Model C708) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6

Model C709 Exploded View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-8

Operator Parts (Model C709) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-11

Model C716 Exploded View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-13

Model C716 Operator Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-16

Model C717 Exploded View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-18

Model C717 Operator Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-21

Control A. - X88194-27 (Model C708) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-23

Control A. - X88195-27 (Model C709) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-25

Control A. - X67558-27 (Model C716) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-27

Control A. - X67559-27 (Model C717) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-29

Box A. - Cap and Relay-X82243-27 (Model C708). . . . . . . . . . . . . . . . . . . . . . . . . . . 4-31

Box A. - Cap and Relay-X82244-27 (Model C709). . . . . . . . . . . . . . . . . . . . . . . . . . . 4-32

Box A. - Cap and Relay-X88095-27 (Models C716/C717) . . . . . . . . . . . . . . . . . . . . . 4-33

Switch A. - Draw-X56147 (C708/C709) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-34

Switch A. - Dual Lever-X69838 (C716/C717) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-35

Actuator A. - Draw Switch-X69835 (C716/C717) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-36

Pump A. - Mix Simplified-X57029-XX (C708/C716) . . . . . . . . . . . . . . . . . . . . . . . . . . 4-37

Door and Beater Assembly (Model C708) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-38

Door and Beater Assembly (Model C709) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-39

Plate A. - Dec-X56959 (C708) / X58860 (C709). . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-40

Door and Beater Assembly (Model C716) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-41

Door and Beater Assembly (Model C717) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-42

Plate A. - Dec-X62127 (C716) / X62128 (C717). . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-43

Line A. - X88179-27 (Models C708/C709) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-44

Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-45

Brush Kit Assembly X44127 (C708/C716) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-46

Brushes – C709/C717 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-47

Section 5: Parts List

Section 6: Wiring Diagrams

ii 059061-S

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Section 1:

Introduction

• Safety

• Refrigerant

• Compressor Warranty Disclaimer

• Model C708 Specifications

• Model C709 Specifications

• Model C716 Specifications

• Model C717 Specifications

• General Installation Instructions

• Running Specifications

Introduction

• Remote Monitoring Commissioning

• To the Operator

Models C708/C709/C716/C717

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INTRODUCTION

Safety

We at Taylor 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 authorized service personnel.

WARNING! This machine must be properly grounded. Failure to do so can result in severe personal injury from electrical shock.

NOTICE! Stationary machines which are not equipped with a power cord and a plug or another device to disconnect the machine from the power source must have an all-pole disconnecting device with a contact gap of at least 0.125 in. (3 mm) in the external installation.

WARNING ! This machine must NOT be installed in an area where a water jet or hose can be used. NEVER use a water jet or hose to rinse or clean the machine. Failure to follow this instruction may result in electrocution.

These machines are designed to operate indoors, under normal ambient temperatures of 70°F to 75°F (21°C to 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 39 in. (1.0 meter) from the surface of the machine and at a height of 63 in. (1.6 m) from the floor.



IMPORTANT! This machine is provided with an equipotential grounding lug that is to be properly attached by the authorized installer to either the rear of the frame or the underside of the base pan near the entry hole for incoming power. The installation location is marked by the equipotential bonding symbol (5021 of IEC 60417-1) on both the removable panel and the machine’s frame, as well as on the diagram.

CAUTION! This machine must be placed on a level surface. Failure to comply may result in personal injury or machine damage.

WARNING! Only install this machine in a location where its use and maintenance is restricted to trained personnel. Failure to comply may result in personal injury.

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Models C708/C709/C716/C717

Introduction

Page 7

Refrigerant

INTRODUCTION

CAUTION! This machine contains fluorinated

greenhouse gases (F-Gas) to provide refrigeration using a hermetically sealed circuit or within foam insulation. This machine’s type of gas, quantity, Global Warming Potential (GWP), and CO

is recorded on the machine’s data label. The refrigerant used is generally considered nontoxic and nonflammable. However any gas under pressure is potentially hazardous and must be handled with caution.

NEVER fill any refrigerant cylinder completely with liquid. Filling the cylinder approximately 80% will allow for normal expansion.

CAUTION! Use only approved refrigerant listed on the machine's data label or authorized through a manufacturer's technical bulletin. The use of any other refrigerant may expose users and operators to unexpected safety hazards.

tonnes equivalent information

NOTICE! Taylor reminds technicians to be aware of government laws regarding refrigerant recovery, recycling, and reclaiming systems. If you have any questions regarding these laws, please contact the factory service department.

IMPORTANT! Refrigerants and their associated lubricants may be 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.

IMPORTANT! If the crossed-out wheeled bin symbol is affixed to this machine, it signifies that this machine is compliant with the EU directives as well as other similar end-of-life 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 delivering the machine to the appropriate collection facility as specified by your local code.

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

WARNING! Refrigerant liquid sprayed onto the

skin may cause serious damage to tissue. Keep eyes and skin protected. If refrigerant burns should occur, flush the area immediately with cold water. If burns are severe, apply ice packs and contact a physician immediately.

Introduction

Models C708/C709/C716/C717

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INTRODUCTION

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 is 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 5-year warranty of the compressor.

Taylor 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 machine in question.

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Models C708/C709/C716/C717

Introduction

Page 9

Model C708 Specifications

INTRODUCTION

Freezing Cylinder

One, 3.4 qt. (3.2 L)

Mix Hopper

One, 20 qt. (18.9 L)

Beater Motor

One, 1.5 HP

Refrigeration Machine

One, approximately 10,100 BTU/hr. compressor. Refrigerant R449A.

Electrical

Table 1-1

One Dedicated Connection

Electrical

208-230/60/1 Air 25 21 2P 3W

208-230/60/1 Water 25 21 2P 3W

Max Fuse

Size

Min Circuit

Ampacity

Poles (P)

Wires (W)

This machine may be manufactured with other electrical characteristics. Refer to the local Taylor distributor for availability. For exact electrical information, see the data label of the machine.

Air-Cooled

Clearance: A minimum of 6 in. (152 mm) is required on both sides, with the back of the machine 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 are on the right side or under the side of the base, 3/8 in. Female Pipe Taper (FPT).

Dimensions

Width: 18-1/4 in. (464 mm) Height: 34 in. (864 mm) Depth: 32-1/4 in. (820 mm) Counter Clearance: Rests on a plastic pad directly on a counter top.

208-230/60/3 Air 20 15 3P 4W

208-230/60/3 Water 15 14 3P 4W

220-240/50/1 Air 25 19 2P 3W

380-415/50/3N~ Air 10 8 4P 5W

Approximate Weights

Net: 425 lb. (193 kg) Crated: 471 lb. (214 kg) Volume: 35.0 cu. ft. (0.99 cu. m)

Introduction

Models C708/C709/C716/C717

1-5

Page 10

INTRODUCTION

Figure 1-1

1-6

Models C708/C709/C716/C717

Introduction

Page 11

Model C709 Specifications

INTRODUCTION

Freezing Cylinder

One, 3.4 qt. (3.2 L)

Mix Hopper

One, 20 qt. (18.9 L)

Beater Motor

One, 1.5 HP

Refrigeration Machine

One, approximately 10,100 BTU/hr. compressor. Refrigerant R449A.

Electrical

Table 1-2

One Dedicated Connection

Electrical

208-230/60/1 Air 25 19 2P 3W

208-230/60/3 Air 15 13 3P 4W

Max Fuse

Size

Min Circuit

Ampacity

Poles (P)

Wires (W)

This machine may be manufactured with other electrical characteristics. Refer to the local Taylor distributor for availability. For exact electrical information, see the data label of the machine.

Air-Cooled

Water-Cooled

Water inlet and drain connections are on the right side or under the side of the base, 3/8 in. Female Pipe Taper (FPT).

Dimensions

Width: 18-1/4 in. (464 mm) Height: 34 in. (864 mm) Depth: 32-1/4 in. (820 mm) Counter Clearance: Rests on a plastic pad directly on a counter top.

208-230/60/3 Water 15 13 3P 4W

220-240/50/1 Air 20 17 2P 3W

380-415/50/3N~ Air 8 7 4P 5W

Approximate Weights

Net: 414 lb. (188 kg) Crated: 425 lb. (193 kg) Volume: 35.0 cu. ft. (0.99 cu. m)

Introduction

Models C708/C709/C716/C717

1-7

Page 12

INTRODUCTION

Figure 1-2

1-8

Models C708/C709/C716/C717

Introduction

Page 13

Model C716 Specifications

INTRODUCTION

Freezing Cylinder

Two, 3.4 qt. (3.2 L)

Mix Hopper

Two, 20 qt. (18.9 L)

Beater Motor

Two, 1.5 HP

Refrigeration Machine

One, approximately 10,100 BTU/hr. compressor. Refrigerant R449A.

Electrical

Table 1-3

Minimum

Circuit

Ampacity

Electrical

Maximum Fuse

Size

This machine may be manufactured with other electrical characteristics. Refer to the local Taylor distributor for availability. For exact electrical information, see the data label of the machine.

Air-Cooled

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

Water-Cooled

Water inlet and drain connections are under the side of the base, 1/2 in. Female Pipe Taper (FPT).

Dimensions

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

*Mounted on standard casters

Left Right Left Right

208-230/60/1 Air 30 25 23 20

208-230/60/1 Air, Syrup 30 25 25 20

208-230/60/1 Water 25 25 21 20

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

208-230/60/3 Air, Syrup 20 15 18 13

380-415/50/3N~ Air 12 9 12 8

Approximate Weights

Net: 827 lb. (375 kg) Crated: 942 lb. (427 kg) Volume: 67.4 cu. ft. (1.91 cu. m)

Introduction

Models C708/C709/C716/C717

1-9

Page 14

INTRODUCTION

Figure 1-3

1-10

Models C708/C709/C716/C717

Introduction

Page 15

Model C717 Specifications

INTRODUCTION

Freezing Cylinder

Two, 3.4 qt. (3.2 L)

Mix Hopper

Two, 20 qt. (18.9 L)

Beater Motor

Two, 1.5 HP

Refrigeration Machine

One, approximately 10,100 BTU/hr. compressor. Refrigerant R449A.

Electrical

Table 1-4

Minimum

Circuit

Ampacity

Electrical

Maximum Fuse

Size

This machine may be manufactured with other electrical characteristics. Refer to the local Taylor distributor for availability. For exact electrical information, see the data label of the machine.

Air-Cooled

Clearance: A minimum of 3 in. (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 in. Female Pipe Taper (FPT).

Dimensions

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

*Mounted on standard casters

Left Right Left Right

208-230/60/1 Air 30 25 22 19

208-230/60/1 Water 25 25 19 19

208-230/60/3 Air 15 15 15 12

208-230/60/3 Water 15 15 12 12

220-240/50/1 Air 20 20 18 17

380-415/50/3N~ Air 10 8 9 6

Approximate Weights

Net: 719 lb. (326 kg) Crated: 824 lb. (374 kg) Volume: 67.4 cu. ft. (1.91 cu. m)

Introduction

Models C708/C709/C716/C717

1-11

Page 16

INTRODUCTION

Figure 1-4

1-12

Models C708/C709/C716/C717

Introduction

Page 17

General Installation Instructions

INTRODUCTION

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

Air-Cooled Machines

C708 and C709: These machines require a minimum of

6 in. (152 mm) air clearance on both sides, with the back of the machine 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 and C717: These machines require a minimum of  3 in. (76 mm) air clearance around all sides. Install the deflector provided to prevent recirculation of warm air.

Beater Rotation

DANGER! The main power supply(s) to the machine must be disconnected prior to performing any installation, maintenance, or repairs. Failure to follow this instruction may result in personal injury or death from electrical shock or hazardous moving parts, as well as poor performance or damage to the machine.

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 key on the control panel. This

activates the beater motor only.

5. Look into the freezing cylinder. The driveshaft should

be turning clockwise. (If necessary, lift the swing panel to view rotation.)

Refrigeration

Main Compressor:

Air-cooled machines: 42 oz. (1,191 g) of R449A. Water-cooled machines: 40 oz. (1,134 g) of R449A.

Gear Alignment and Rear Shell Bearings

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

2. If a driveshaft is binding, the gear could be out of alignment (loose). Check the bolts on the gear to make sure they are tight.

3. Inspect the rear shell bearing for tightness. Make sure the locking tab has been folded over to prevent the nut from loosening.

6. Press the Wash key again to stop the beater motor.

Note: Repeat step 1 through step 6 for the other side on models C716 and C717.

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

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

Introduction

Models C708/C709/C716/C717

1-13

Page 18

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 button on the control panel. This activates 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 step 1 through step 4 for the other side on Models C716 and C717.

Installation of Optional Syrup Rail

X48015-27 (C708 and C709 Only): The syrup rail can

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

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

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

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

Electrical Connections

Each machine requires one power supply for each data label on the machine. Check the data label(s) on the machine for branch circuit overcurrent protection or fuse, circuit ampacity and other electrical specifications. Refer to the wiring diagram provided inside the control box for proper power connections.

In the United States, this machine 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 0.12 in. (3 mm) installed in the external installation.

Figure 1-5

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.



1-14

Models C708/C709/C716/C717

Introduction

Page 19

INTRODUCTION

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

1. Three holes must be created in the side of the chute as shown in tion 048014-DRW included with the Syrup Rail Kit.)

Figure 1-6. (See the Syrup Rail Instruc-

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. [474 mL]). 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 roomtemperature jar.

Figure 1-6

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

1-15

Page 20

INTRODUCTION

Running Specifications

Pressures/Temperatures

The following are the Taylor recommended settings for various components within these models. The freezers in this manual use refrigerant R449A.

Note: These settings apply to both sides of the C716

and C717 machines.

EPR Valve = 60 psi (414 kPa)

OPR Valve = 21 psi (145 kPa)

Expansion Valve (AXV)*

Air-Cooled: 16.5 psi (114 kPa) Water-Cooled: 16.5 psi (114 kPa) *For a normal product of 16°F to 18°F (-8.8°C to -7.7°C).

Expansion Valve Adjustment (AXV)

Place your pressure 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 turns lower the pressure.

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

Low-Side (Suction)

Suction pressure equals expansion valve setting.

High-Side (Discharge)

High-side pressure varies for air-cooled machines, depending on the ambient temperature.

Table 1-5

Ambient Temperature

°F °C psi (kPa)

70° 21.1°

80° 26.7°

90° 32.2°

100° 37.8°

Normal Operating Head

Pressures

240 to 270

(1,655 to 1,862)

270 to 300

(1,862 to 2,069)

300 to 340

(2,069 to 2,344)

340 to 380

(2,344 to 2,620)

Water Valve

On a water-cooled machine, the water valve should be set to maintain a compressor head pressure of 255 psi (1,758 kPa).



Water Valve Adjustment

Place your pressure gauge on the high-side access port of the compressor. Turning the adjustment stem on the water valve clockwise lowers the pressure, counterclockwise raises the pressure.

Note: Make this adjustment with mix in the cylinder and the freezer in the Auto mode. Make sure to allow adequate time for pressure to stabilize.



1-16

Models C708/C709/C716/C717

Introduction

Page 21

Remote Monitoring Commissioning

Taylor Gateway Connecting to Wi-Fi

1. From Taylor machine enable Gateway Access Point:

a. Enter the Manager Menu.

b. Scroll down to Enable Wi-Fi menu.

INTRODUCTION

c. Enable the feature.

d. This will activate the Gateway Access Point for 10

minutes, allowing a user to connect directly to the Gateway.

2. From a user device (laptop, cellphone, tablet, etc.) connect to the taylor-gw access point through the Wi-Fi setting on the device.

a. This access point may not be broadcast so the

user may have to use the Add Network function.

b. Enter the password to connect to the access

point.

3. Once the connection is established open an internet browser.

4. Enter 192.168.2.1:8081 into the browser bar.

a. A warning page may be displayed (examples

follow).

b. This warning is due to the configuration page's

certificate and it is ok to proceed.

c. By clicking Details or Advanced the user can

proceed to the URl despite the warning.



Figure 1-8

d. The Gateway configuration webpage will then be

displayed.

Introduction

Figure 1-7

5. Click on the Wi-Fi tab:

a. Enter the name of the customer Access Point you

would like to connect to (Customer’s Wi-Fi).

b. Enter the corresponding password.

c. Click Submit to save the changes.

d. Click reboot to reboot the Gateway, at which time

it will connect to the customer's Wi-Fi.

Models C708/C709/C716/C717

Figure 1-9

1-17

Page 22

INTRODUCTION

Figure 1-10

6. Confirm connection to customer access point (Wi-Fi).

3 blinks: WiFi error

• Confirm the store's WiFi is operational:

• Using a computer, tablet, or phone, try to connect to any website on the store's WiFi.

• Confirm store's current WiFi password:

• If recently changed, follow the procedures to reconnect the gateway board to the store's WiFi.

• Confirm the store's current SSID (WiFi name):

• If recently changed, follow the procedures to reconnect the gateway board to the store's WiFi.

• Confirm the WiFi signal strength using an app on a phone or tablet:

• Minimum DB level -70 dBm

• Suggested apps

• Android : WiFi Analyzer

• iOS: AirPort Utility

Note: Go to app settings and turn on WiFi Scanner options.

Remote Monitoring Gateway Board

Troubleshooting

To troubleshoot issues with the remote monitoring gateway board, observe the blink patterns of the blue LED light at D1. The light will illuminate for approximately 1 second, followed by the code blinks.

LED not lit: No power to the gateway board

• Confirm there is 24V to the power cable at the connector end.

• Confirm the power cable is correctly connected to the transformer.

• Replace the gateway board.

2 blinks: No communication between gateway and UVC4 boards

• Confirm the cable between the gateway and UVC4 boards is connected properly and not damaged.

• Confirm UVC4 is functioning correctly.

• Confirm the UVC4 has the correct software version for remote monitoring system:

• C708/C716: Minimum version 2.03

• C709/C717: Minimum version 2.03

4 blinks: Server connection error

• Follow the procedures to reconnect the gateway board to the store's WiFi.

• Replace the gateway board.

1-18

Models C708/C709/C716/C717

Introduction

Page 23

To the Operator

C716/C717

INTRODUCTION

C708/C709

Figure 1-11

Item Description

1Power Switch

2 Liquid Crystal Display

3Keys

4 Mix-Out Indicator

5 Standby Indicator

6 Mix-Low Indicator

7 SEL (Select) Key

8 Menu Key

9 Brush Clean Counter

10 Arrow Keys

11 Syrup Heater Key

Note: Models C709 and C717 do not have mix pump Keys.

Introduction

Figure 1-12

Models C708/C709/C716/C717

1-19

Page 24

INTRODUCTION

C708/C709

C716/C717

Figure 1-13

Figure 1-14

Symbol Definitions

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

Introduction

1-20

Models C708/C709/C716/C717

Page 25

INTRODUCTION

10354

Item Description

1 Auto Key

2Heat Key

3Wash Key

4 Mix Pump Key (C708/C716 Only)

5 Mix-Out Indicator

6 Standby Key

7 Topping Heater Key-Right Side 

(C716/C717 Only)

8 Mix-Low Indicator

9 SEL (Select) Key

10 Menu Key

11 Brush Clean Counter Display

Power Switch

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

Item Description

12 Down Arrow Key

13 Up Arrow Key

*14 Topping Heater Key

*15 Standby Key

*16 Mix-Out Indicator

*17 Mix-Low Indicator

*18 Mix Pump Key

*19 Wash Key

*20 Heat Cycle Key

*21 Auto Key

*Left side of C716/C717 only.

Heat Cycle Key—When illuminated, the freezer is in a heat cycle. Press the Heat Cycle key (if enabled) to start a Heat cycle. If disabled, the Heat Cycle key is inoperable. By default, the Heat Cycle key is enabled.

Liquid Crystal Display (LCD)

The Liquid Crystal Display (LCD) is located on the front control panel. During normal operation, the display is blank. The display shows menu options and notifies the operator if a fault is detected. On international models, the display shows the temperature of the mix in each hopper.

Indicator Lights

Mix-Low—When the Mix-Low indicator illuminates, the

mix hopper has a low supply of mix and should be refilled as soon as possible.

Mix-Out—When the Mix-Out indicator illuminates, the mix hopper is almost completely exhausted and has an insufficient supply of mix to operate the machine. At this time, the Auto mode is locked out and the machine will be placed in the Standby mode. To initiate the refrigeration system, add mix to the mix hopper and press the Auto key. The machine will automatically begin operation.

Brush Clean Counter—When the Brush Clean Counter display counts down to 1, the machine must be disassembled and brush-cleaned within 24 hours.

Adjustable Draw Handle

The adjustable draw handle(s) provides the best portion control for consistent high quality and helps control food costs. The draw handle should be adjusted to provide a flow rate of 5 oz. to 7-1/2 oz. (142 g to 213 g) of product by weight per 10 seconds. To increase the flow rate, turn the screw clockwise. To decrease the flow rate, turn the screw counterclockwise. (See

Figure 1-15.)

Introduction

Models C708/C709/C716/C717

Figure 1-15

1-21

Page 26

INTRODUCTION

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. Press the Wash key and observe the freezer's performance.

CAUTION! DO NOT use metal objects to press the reset button. Failure to follow this instruction may result in electrocution.

If the beater motor is turning properly, press the Wash key to cancel the cycle. Press the Auto key to resume normal operation. If the freezer shuts down again, contact your authorized Taylor service technician.



Air/Mix Pump Reset Mechanism

(C708 and 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.

CAUTION! DO NOT use metal objects to press the reset button. Failure to follow this instruction may result in electrocution.

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 Treatment Cycle and the subsequent Standby mode.

1-22

Models C708/C709/C716/C717

Introduction

Page 27

Section 2:

Controls

• Universal Control Programming

• Heat Treatment Cycle

• Heat Treatment Graph

• Freezer Lock-Out

• Power Interrupt

• Pump Operation

• Timers

• Jumper Pin Charts

• Beater Stir Cycles

• Setting Viscosity

• C708/C709 Control Overview

• C716/C717 Control Overview

Controls

• Universal Control Board

• Refrigeration System—Hot Gas Treatment

• Checking and Setting Refrigeration Valves

• Refrigeration Schematic

• Refrigeration System Components

Models C708/C709/C716/C717

2-1

Page 28

CONTROLS

Initializing Language

Initializing System Data

Initializing Config Data

Initializing Lockout Data

Universal Control Programming

Operating Screen Descriptions

The LCD located in the center of the control panel is normally blank during daily operation of the machine. The display is activated when the SEL key 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 are four types of data the system checks: Language, System Data, Configuration Data, and Lockout Data.

Language Initialization

The universal control (UVC) platform supports multiple languages by keeping specific strings in battery-backed random-access memory (RAM). After power-up or a central processing unit (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.

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.

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/displayed. An acknowledgment is required (press SEL key).

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.

If configuration data is corrupted, all user and service settings are set to defaults and a CONFIG CRC ERR fault is set/displayed. The system will continue to operate in its previous mode, but according to default settings.

Note: If there is a language initialization fault, the machine will force a language selection prior to the initializing sequence. The standard menu LEDs should light, as if it were in a menu. If a language has been selected, the machine is powered down, the machine should not ask for a language unless there is another language initialization fault. English is the factory default setting.

2-2

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.

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 is displayed.

Models C708/C709/C716/C717

Controls

Page 29

CONTROLS

SAFETY TIMEOUT

ANY KEY ABORTS

POWER SWITCH OFF

Ŧ = Ŧ = Ŧ = Ŧ = Ŧ = Ŧ

UNIT CLEANED

DO NOT DRAW

HOT PRODUCT

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 previous Heat cycle data record is cleared and data for the heat cycle is written to it. The current Heat cycle data is 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

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

page 2-10.)

Heat Treatment Cycle

The Heat Cycle key on the control panel illuminates throughout the Heat Treatment Cycle. Two warning messages will be displayed on the screen. DO NOT DRAW is displayed when the mix temperature is below 130°F (54.4°C).

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.

Power Switch OFF

After the safety timeout has been completed and the power switch is off, the following screen is displayed:

Power Switch ON

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

WARNING! DO NOT attempt to draw product or disassemble the machine during the Heat Treatment cycle (if equipped). The product is hot and under extreme pressure. Severe burns from hot product may result if this instruction is not followed.

In the Heat Treatment Cycle, the mix temperature in the hopper and freezing cylinder must be raised to 151°F (66.1°C) within 90 minutes.

When the Heat Treatment Cycle is complete, the freezer goes into the holding phase of the cycle. The holding phase keeps the temperature above 151°F (66.1°C) for a minimum of 35 minutes for UVC3 machines, and 30 minutes for UVC4 machines.

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 Treatment Cycle has been completed, the Heat Cycle key will no longer be illuminated and the machine enters the Standby mode (Standby key illuminates). The machine can then be placed in Auto mode or left in Standby mode.

Controls

Models C708/C709/C716/C717

2-3

Page 30

CONTROLS

HOPPER 21.0

UNIT CLEANED

ARE YOU SURE

>Yes

13398BR

ENTER ACCESS CODE

83 0 9

13399

International Models Only:

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

If the control is set for international configuration, the following screen appears when the Heat Cycle key is

pressed.

Use the Up Arrow or Down Arrow key to move the cursor to Yes. Press the SEL key to immediately start a Heat Treatment Cycle.

Note: The machine must be in Auto or Standby mode and have sufficient mix in the hopper before the machine can successfully enter the Heat mode of operation.

• Down Arrow key—decreases the value above the cursor and scrolls downward in text displays.

• SEL—advances the cursor position to the right and selects menu options.

There is a 2-minute time-out in effect during the Manager’s Menu. While in the Manager’s Menu, if no activity occurs within a 2-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.

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 2-11.)

Entering Access Code

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

Manager's Menu

Use the Manager's Menu to enter the operator function displays. To access the menu, press the Menu (Cone) key, on the control panel. The Arrow keys, the SEL key and the Menu key will be lit when the ACCESS CODE screen is displayed.

Figure 2-1

In the menu program, the Arrow keys and the SEL key will function as menu keys:

• Up Arrow key—increases the value above the cursor and scrolls upward in text displays.

Enter the access code numbers (8309) until all four numbers are displayed, then press the SEL key. The Manager’s Menu list will display on the screen, provided the correct access code is entered.

If an incorrect access code is entered, the display will exit the menu program when the SEL key is pressed.

Figure 2-2

2-4

Models C708/C709/C716/C717

Controls

Page 31

Manager’s Menu Options

SERVINGS COUNTER

> Next

Reset Counters

ARE YOU SURE?

Yes

>No

SET CLOCK 12:01 00/00/00 NO CHANGES ALLOWED Press Any Key

SET CLOCK 12:01 00/00/0000 Change > Exit

SET CLOCK 12

:01 00/00/0000

> Exit

Press the Arrow keys to move up or down through the menu. Select a menu option by pressing the SEL key. Exit the menu program by selecting EXIT FROM MENU or press the Menu key.

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

EXIT FROM MENU

SERVINGS COUNTER

SET CLOCK

AUTO HEAT TIME

AUTO START TIME

AUTO STANDBY TIME

AGITATOR OPERATION

MIX LEVEL AUDIBLE

FAULT DESCRIPTION

CONTROLS

Set Clock

The SET CLOCK screen 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.

FAULT HISTORY

LOCKOUT HISTORY

HEAT CYCLE SUMMARY

HEAT CYCLE DATA

SYSTEM INFORMATION

CURRENT CONDITIONS

Exit From Menu

Selecting EXIT FROM MENU exits the Manager's Menu and returns the control panel keys to normal operation.

Servings Counter

Use the SERVINGS COUNTER screen to check or reset the number of servings dispensed from the machine. The SERVINGS COUNTER automatically resets to zero when the machine is brush-cleaned.

To change the date or time, select the SET CLOCK option in the menu. Press the Up Arrow key to advance the cursor from Exit to Change, then press the SEL key to select the Change option.

Change the time by pressing the Up Arrow key with the cursor under the hour position. Move the cursor to the minutes position by pressing the SEL key. Once the correct minutes are entered, press the SEL key to advance the cursor to the month.

Reset the SERVINGS COUNTER by pressing the SEL key to advance to the next screen. Press the Up Arrow key to move the cursor to Yes and press the SEL key. The servings counter will reset to zero and exit back to the Manager's Menu.

Controls

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

Models C708/C709/C716/C717

2-5

Page 32

CONTROLS

DAYLIGHT SAVING TIME

ENABLED

> Enable

Disable

MAR Second Sunday NOV First Sunday

Change

> Exit

DST START MONTH > MAR

APR MAY

DST START WEEK > Second Sunday

Third Sunday Fourth Sunday

DST END MONTH

> NOV

DEC

DST END WEEK > First Sunday

Second Sunday Third Sunday

AUTO HEAT TIME

00:00

Change

> Exit

AUTO HEAT TIME

:00

Pressing the Up Arrow or Down Arrow keys moves the cursor to Enable or Disable. Pressing the SEL key next to Disable selects that option and returns to the Manager’s Menu. Pressing the SEL key next to Enable selects that option and displays the next screen.

If the correct Sunday for the time change is not displayed, select Change. Pressing the SEL key with the cursor next to Change displays the third screen. Press the Up Arrow or Down Arrow key to move the cursor to the appropriate month for the start of daylight saving time (DST).

Pressing the SEL key next to the appropriate month will display the following screen. Press the Up Arrow or Down Arrow key to move the cursor to the appropriate week for the end of DST.

Pressing the SEL key selects the week with the cursor next to it and returns to the Manager’s Menu.

Auto Heat Time

The AUTO HEAT TIME screen allows the manager to set the time of day in which the Heat Treatment Cycle will automatically start.

To set the AUTO HEAT TIME, press the Up Arrow key to move the cursor to Change. Then press the SEL key. The screen will display the time with the cursor under the hour position.

Pressing the SEL key with the arrow next to the appropriate month will display the following screen:

Pressing the Up Arrow or Down Arrow key moves the cursor to the appropriate week for the start of daylight savings time. Pressing the SEL key next to the appropriate week will display the following screen. Press the Up Arrow or Down Arrow key to move the cursor to the appropriate month for the end of DST.

2-6

Press the Arrow keys to increase or decrease the hour to the desired setting. Then move the cursor to the minutes position by pressing the SEL key. Adjust the setting for minutes. Then press the SEL key to save the setting and return to the AUTO HEAT TIME screen. Press the SEL key 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.

Models C708/C709/C716/C717

Controls

Page 33

Enable the AUTO START TIME by pressing the Up Arrow

AUTO START TIME

DISABLED

Enable

> Disable

AUTO START TIME

00:00

Change

> Exit

AUTO START TIME

:00

AUTO STANDBY TIME

DISABLED

> Enable

Disable

AUTO STANDBY TIME

00:00

Change

> Exit

AUTO STANDBY TIME

:00

AGITATOR OPERATION > Standard operation

with Hopper Refrig Exit

key to move the cursor up to Enable. Press the SEL key to advance to the next screen.

Program the AUTO START TIME by pressing the Up Arrow key to move the cursor to Change. Press the SEL key to advance to the next screen.

CONTROLS

Program the AUTO STANDBY TIME by pressing the Up Arrow key to move the cursor to Change. Press the SEL key to advance to the next screen.

Use the Arrow keys to program the AUTO STANDBY TIME by increasing or decreasing the hour setting above the cursor. Press the SEL key to advance the cursor and program the minutes setting. Press the SEL key to return to the previous screen with the new time setting displayed. Press the SEL key to exit the screen and return to the menu.

Use the Arrow keys to program the AUTO START TIME by increasing or decreasing the hour setting above the cursor. Press the SEL key to advance the cursor and program the minutes setting. Press the SEL key to return to the previous screen with the new time setting displayed. Press the SEL key to exit the screen and return to the menu.

Auto Standby Time

The AUTO STANDBY TIME option allows the manager to set the time of day at which the machine automatically enters the Standby mode from the Auto mode. This allows power saving during slow sales. By default, this feature is disabled.

Enable the AUTO STANDBY TIME by pressing the Up Arrow key to move the cursor up to Enable. Press the SEL key to advance to the next screen.

Agitator Operation

The AGITATOR OPERATION option allows the manager to select either continuous or intermittent agitator operation. Agitator Operation may be set to operate in the Standard mode or with hopper refrigeration. In the Standard mode, the agitator operates during Auto mode, Standby mode, and Heat Treatment Cycle. In the With Hopper Refrig mode, the agitator runs only when the hopper is refrigerating and during the Heat, Hold, and Soak phases of a Heat Treatment Cycle and the Cool phase of a Heat Treatment Cycle if the hopper is refrigerating. The default is standard operation.

Use the Arrow keys to move to the desired operation and press the SEL key to accept the selection.

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:



Controls

Models C708/C709/C716/C717

2-7

Page 34

CONTROLS

MIX LEVEL AUDIBLE

DISABLED

> Enable

Disable

FAULT DESCRIPTION NO FAULT FOUND

FAULT HISTORY 1 00/00/00 00:00

REASON

> Exit

LOCKOUT HISTORY 1 00/00/00 00:00

REASON

> Exit

Disable the audible tone feature by pressing the Down Arrow key to move the cursor to Disable. Press the SEL key 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 screen lists any faults detected by the control and allows the manager or service technician to clear them from the screen. When a fault is detected, it is displayed on the second and/or third line.

Note: Three codes have been set up to assist in diagnosing bad thermistor probes. If a probe has shorted (resistance less than 1 ohm), SHRT will display for its respective machine location. If the probe is open (resistance above 1 megohm), OPEN will display. If the actual probe environment exceeds 200°F (93°C), the respective screen display location will read OVER, indicating the temperature is out of range.

COMP ON TOO LONG—The compressor run time exceeded the 11-minute timer.

Fault History

The FAULT HISTORY screen will display up to 100 faults that have occurred. The most recent fault is displayed on screen 1. The date, time, and fault description is displayed on each screen.

Pressing the SEL key displays the next fault found or returns to the Manager's Menu if no other faults exist. Pressing the SEL key any time faults are displayed will clear the faults, if corrected, upon returning to the menu screen.

Listed below are 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. Wait 5 minutes for the machine to cool. Press the beater reset button firmly. Place the power switch in the ON position and restart in Auto mode.

COMPRESSOR HPCO—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 mode.

HOPPER THERMISTOR BAD—Place the power switch in the OFF position. (See note below.)

Lockout History

The LOCKOUT HISTORY screen displays a history of the last 100 soft locks, hard locks, brush-clean dates, or aborted heat cycles. Page numbers are indicated in the upper right corner. Page 1 always contains the most recent failure.

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.

Use the Arrow keys to move forward or backward to view each screen. Listed below are the variable messages that may appear.

BARREL THERMISTOR BAD—Place the power switch in the OFF position. (See note below.)

2-8

Models C708/C709/C716/C717

Controls

Page 35

CONTROLS

POWER FAILURE

PRESS SEL KEY

Faults Occurring Entering a Heat Treatment Cycle

POWER SWITCH OFF—The power switch is off.

AUTO OR STBY OFF—The control was not in the Auto or Standby mode.

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.

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 90 minutes for UVC3 machines or 120 minutes for UVC4 machines.

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.

(L/R) BRL>41F (5C) AFTER PF—The mix temperature in the freezing cylinder (barrel) was above 41°F (5°C) more than 4 hours following a power failure.

(L/R) HPR>45F (7C) AFTER 1 HR—The mix temperature in the left or right hopper was above 45°F (7°C) more than 1 hour.

(L/R) BRL>45F (7C) AFTER 1 HR—The mix temperature in the left or right freezing cylinder (barrel) was above 45°F (7°C) more than 1 hour.

(L/R) HPR>59F (15C)—The mix temperature in the hopper exceeded 59°F (15°C).

(L/R) BRL>59F (15C)—The mix temperature in the freezing cylinder (barrel) exceeded 59°F (15°C).

Error Messages



Error messages are faults that cannot be monitored after they are detected. An example would be if a CRC error occurs. The software corrects it and then reports it to the operator. Once the error is reported, it stops monitoring it. The following are a list of these errors.

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.

MIX-LOW FAILURE—The mix level in the hopper is too low for a successful Heat cycle.

BEATER OVLD H/C—The overload tripped for the beater motor.

BRL THERM FAIL—The thermistor sensor for the freezing cylinder failed.

HOPPER THERM FAIL—The thermistor sensor for the hopper failed.

HPCO H/C—The 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 hopper was above 41°F (5°C) more than 4 hours.

(L/R) BRL>41F (5C) AFTER 4 HR—The mix temperature in the freezing cylinder (barrel) was above 41°F (5°C) more than 4 hours.

(L/R) HPR>41F (5C) AFTER PF—The mix temperature in the hopper was above 41°F (5°C) more than 4 hours following a power failure.

POWER FAILURE

RESET TO DEFAULTS

CONFIG CRC ERROR

LOCKOUT CRC ERROR

HC DATA CRC ERROR

SYSTEM CRC ERROR

EEPROM CRC ERROR

CORRUPTED LANGUAGE

HOPPER OVER TEMP

BARREL OVER TEMP

PRODUCT DOOR OFF

LANGUAGE TOO SHORT

MISSING LANGUAGE

These errors will be shown on the top line of the display. The fourth line will show PRESS SEL KEY. When the SEL key is pressed, the error displayed will be cleared. If other errors exist, the sequence will be repeated.

Controls

Models C708/C709/C716/C717

2-9

Page 36

CONTROLS

HEAT CYCLE SUMMARY

0CH ECNIS SRH 0051 ECNIS SRH 0CB ECNIS CH

HEAT TREAT CYCLE 00/00 00:00 00:00 No fault found

H: 40.9 B:26.3 L HEAT OVER COOL PEAK 1:12 0:49 h 1:19 161.0 0:46 1:11 b 0:15 169.7

H: 38.0 B:23.7 R HEAT OVER COOL PEAK 1:09 0:52 h 1:11 161.2 0:66 1:00 b 0:11 169.9

Heat Cycle Summary

The HEAT CYCLE SUMMARY screen displays the hours since the last Heat Treatment Cycle, the hours since the product temperature was above 150°F (65.6°C), and the number of Heat Treatment Cycles completed since the last brush-clean date.

Heat Treat Cycle Data

The HEAT TREAT CYCLE 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 has three screens. The first screen displays the month and day of the Heat cycle, the start time and end time, and the fault description. The bottom line displays the record number and indicates if a power failure occurred during the Heat cycle (POWER FAILURE IN HC).

COOL = Total time the hopper (h) and barrel (b) temperature was above 41°F (5°C) during the Cool phase.

PEAK = Highest temperature reading for the hopper (h) and barrel (b) during the Heat Treatment Cycle.

The HEAT time indicates the amount of time taken in each zone to reach 150.9°F (66.1°C). Each zone must remain above 150°F (65.6°C) for a minimum of 35 minutes.

Press the Up Arrow key to advance to the next page or the Down Arrow key to view the previous page. A heat cycle failure message will display on the first screen if a failure occurred.



Press the Up Arrow key to advance forward through the data pages. Press the Down Arrow key to reverse the page direction.

Hopper and barrel temperature records for each side of the freezer are displayed in the second and third screens. The second screen shows the left side (L) side of the freezer.

The third screen shows the right side (R) of the freezer.

The top line of these screens shows the hopper (H) and barrel (B) temperatures recorded at the end of the Heat Treatment Cycle and indicates the side (L or R) of the freezer.

The remaining lines indicate the following:

HEAT = Total time for the hopper (h) and barrel (b) to reach 150.9°F (66.1°C).

OVER = Total time the hopper (h) and barrel (b) temperature was above 150°F (65.6°C).

2-10

Listed below are variable failure code messages which could appear on line 2.

HT—HEAT TIME FAILURE Mix temperature did not rise above 151°F (66.1°C) in less than 90 minutes.

CL—COOL MODE FAILURE Mix temperature in the hopper and freezing cylinder did not fall below 41°F (5°C) in less than 90 minutes for UVC3 machines or 120 minutes for UVC4 machines.

TT—TOTAL TIME FAILURE The Heat Treatment Cycle must be completed in no more than 4 hours.

ML—MIX-LOW FAILURE The Heat phase or Cool phase time was exceeded and a Mix-Low condition was present.

MO—MIX-OUT FAILURE A Mix-Out condition was detected at the start or during the Heat cycle.

BO—BEATER OLVD IN HC A beater overload occurred during the Heat cycle.

Models C708/C709/C716/C717

Controls

Page 37

PF—POWER FAILURE IN HC

SOFTWARE VERSION C708/C709 UVC4 VERSION X.XX > Next

Language V5.01 English

> Next

Bootloader V1.13.000

> Next

B.O.M. C700000000 S/N M0000000 Othr= 00000 > Next

VISC 0.0 HOPPER 41.0 BARREL 41.0

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.

CONTROLS

OP—OPERATOR INTERRUPT Indicates the Heat cycle was aborted in the OPERATOR INTERRUPT option in the Service Menu.

PS—POWER SWITCH OFF The power switch was placed into the OFF position during the Heat cycle.

TH—THERMISTOR FAILURE A thermistor probe has failed.

PD—PRODUCT DOOR OFF A product door is not in place or is loose.

System Information

The system information is displayed on four separate screens. The first screen contains the control and software version installed in the machine.

Press the SEL key to advance to the next system information screen containing the software language version.

Current Conditions

The CURRENT CONDITIONS screen provides the viscosity readings for the product when the machine is running, and the hopper and the freezing cylinder temperatures for the machine.

Current conditions is the only menu screen that returns the control panel keys to normal operation. The menu keys will not be lit when this option is selected but the panel keys will be fully functional. Exit the current conditions screen and return to the menu by pressing the SEL key.

Service Menu

The Service Menu option allows trained service technicians to access and modify critical operating parameters for the machine. The access code for the Service Menu is: 5 2 3 1.

Service Menu Options

The Service Menu screen includes the following options which are also displayed in the Manager’s Menu. (See page 2-4).

Press the SEL key to advance to the next screen.

Press the SEL key to advance to the system information screen containing the model, bill of material, and machine serial number. Pressing the SEL key again will return to the menu list.

Controls

Models C708/C709/C716/C717

EXIT FROM MENU

SERVINGS COUNTER

SET CLOCK

AUTO HEAT TIME

AUTO START TIME

AUTO STANDBY TIME

AGITATOR OPERATION

MIX LEVEL AUDIBLE

FAULT DESCRIPTION

FAULT HISTORY

LOCKOUT HISTORY

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Page 38

CONTROLS

TEMPERATURE SCALE FAHRENHEIT >Fahrenheit Celsius

HEAT TREAT TEMPS

BARREL HOPPER

> Next

BARREL HEAT TEMP HEATING : 160.0 CURRENT : 41.0 > Next

HEAT TREAT TEMPS HOLDING : 160.0 CURRENT : 41.0 > Next

HOPPER HEAT TEMP HEATING : 155.0 CURRENT : 41.0 > Next

HEAT CYCLE SUMMARY

HEAT CYCLE DATA

SYSTEM INFORMATION

CURRENT CONDITIONS

The Service Menu screen also includes the following options which can only be accessed through the Service Menu:

TEMPERATURE SCALE

HEAT TREAT TEMPS

HEAT KEY ENABLE

ABORT HEAT CYCLE

STANDBY KEY ENABLE

STANDBY TEMP

HOPPER TEMP

VISCOSITY SETTING

BARREL PRIORITY

COMPRESSOR CYCLE TIME

COMPRESSOR ON DELAY

BEATER OFF DELAY

Heat Treat Temps

This option allows the technician to adjust the barrel (freezing cylinder) and hopper temperatures used to control the hot gas solenoid in the Heat and Hold phases of the Heat Treatment Cycle.

If the cursor is moved to BARREL, the following screen will display.

Pressing the Up Arrow or Down Arrow buttons increase or decreases the temperature. Pressing the SEL button accepts the setting and displays the barrel holding screen.

MIX PUMP OFF DELAY

EDIT UNIT ID

SELECT LANGUAGE

BRUSH CLEAN CYCLE

MANUAL CONTROL

NET SERVICE PIN

LICENSE FEATURES

SOFTWARE UPDATE

RESET TO DEFAULTS

Temperature Scale

This option allows the service technician to choose the scale in which the machine will display all temperatures.

Pressing the Up Arrow button moves the cursor to Fahrenheit. Pressing the Down Arrow button moves the arrow to Celsius. Pressing the SEL button with the cursor next to the appropriate option selects that option and returns to the Service Menu screen.

2-12

The factory default setting for barrel heating is 160°F (71°C).

Pressing the Up Arrow or Down Arrow buttons increases and decreases the temperature. Pressing the SEL button accepts the setting. If the cursor is moved to HOPPER, the following screen will display.

The factory default setting for hopper heating is 155°F (68°C). Pressing the Up Arrow or Down Arrow buttons increases or decreases the temperature. Pressing the SEL button accepts the setting and displays the hopper holding screen. The factory default setting for hopper hold is 155°F (68°C).

Models C708/C709/C716/C717

Controls

Page 39

Pressing the Up Arrow or Down Arrow buttons increases

HEAT TREAT TEMPS HOLDING : 155.0 CURRENT : 41.0 > Next

HEAT KEY ENABLE

ENABLED

> Enable

Disable

ABORT HEAT CYCLE

Yes > No

STANDBY KEY ENABLE

DISABLED Enable > Disable

STANDBY TEMP CUT IN AT : 37.0 CURRENT : 37.0 > Next

or decreases the temperature. Pressing the SEL button accepts the setting and returns to the Service Menu screen. Pressing the Menu button with any screen showing ignores any changes and returns to the Service Menu screen.

CONTROLS

Standby Key Enable

This option allows the technician to enable or disable the Standby button on the front panel. If enabled, the operator can press the Standby button on the front panel to place the machine in the Standby mode, unless the machine is in the Wash mode, Heat Treat mode, or in lockout.

Heat Key Enable

This option allows the technician to either enable or disable the Heat cycle button when the machine is in the Auto or Standby mode. If enabled, the operator can start a heat cycle by pressing the Heat cycle button on the front panel.

Pressing the SEL button with the cursor next to Enable or Disable accepts the setting and returns to the Service Menu screen.

Abort Heat Cycle

This option allows the technician to abort a Heat cycle. The following screen will be displayed upon selecting this option if the machine is in a Heat cycle.

Pressing the Up Arrow or Down Arrow button moves the cursor to Enable or Disable. Pressing the SEL button with the cursor next to either option selects that option and returns to the Menu screen. Pressing the Menu button with this screen showing ignores any changes and returns to the Menu screen.

Standby Temp

This option allows the technician to adjust the freezing cylinder temperature at which the compressor will turn on in Standby mode.

Standby temperatures must be set to maintain hopper and freezing cylinder temperatures below 40°F (4.4°C).

Note: To accommodate agitator mode (with Hopper Refrig) operation, the hopper and standby temperature setpoint maximum and default values are lowered from 39°F to 37°F (3.9°C to 2.8°C).

Pressing the Up Arrow button moves the cursor to Yes. Pressing the Down button moves the cursor to No. Pressing the SEL button with the cursor next to Yes will abort the Heat cycle. Pressing the SEL button with the cursor next to No has no effect and will return to the Service Menu screen.

Controls

Pressing the Up Arrow or Down Arrow buttons increases or decreases the temperature 0.5°F (0.27°C) respectively. Pressing the SEL button accepts the setting and returns to the Service Menu screen.

The temperature differential is 2°F (1°C) for Standby temperature.

Models C708/C709/C716/C717

2-13

Page 40

CONTROLS

HOPPER TEMP CUT IN AT : 37.0 CURRENT : 37.0 > Next

VISCOSITY SETTING VISC = 2.8 AMPS CURRENT > Exit

BARREL PRIORITY DISABLED

Enable > Disable

COMP CYCLE TIME CYCLE TIME : 10 MIN

> Exit

COMP ON DELAY

SDNOCES 2:EMIT

> Exit

Hopper Temp

This option allows the technician to adjust the hopper temperature in Auto mode and Standby mode. The following screen is displayed upon selecting this option.

Note: To accommodate agitator mode (with Hopper Refrig) operation, the hopper and standby temperature

setpoint maximum and default values were lowered from 39°F (3.9°C) to 37°F (2.8°C).

Pressing the Up Arrow or Down Arrow buttons increases and decreases the temperature 0.5°F (0.27°C) respectively. Pressing the SEL button accepts the setting and returns to the Service Menu screen. The temperature differential is 2°F (1°C) for the hopper temperature.

Barrel Priority (C716/C717 Only)

This option allows the technician to set barrel priority. The factory default setting has this feature disabled. The following screen is displayed upon entering this option.

If barrel priority is selected, the hopper will not cool until the barrel set-point is reached. Pressing the SEL button accepts the setting and returns to the Service Menu screen.

Comp Cycle Time

This option allows the technician to set the Compressor Cycle Time. The following screen is displayed upon entering this option.

Viscosity Setting

This option allows the service technician to adjust the viscosity at which the compressor turns off in Auto mode. The first screen is displayed upon entering this function.

Pressing the Up Arrow button increases the viscosity setting by 0.1 amp. Pressing the Down Arrow button decreases the viscosity setting by 0.1 amp. Pressing the SEL button accepts the viscosity setting and returns to the Service Menu screen.

Pressing the Up Arrow or Down Arrow button increases or decreases the cycle time by one minute respectively. Pressing the SEL button accepts the setting and returns to the Service Menu screen.

Comp On Delay

This option allows the technician to adjust the Compressor On Delay. The following screen is displayed upon entering this option.

Pressing the Up Arrow or Down Arrow button increases or decreases the time delay by 1 second respectively. Pressing the SEL button accepts the setting and returns to the Service Menu screen.

2-14

Note: The minimum setting for COMP ON DELAY is 2 seconds.

Models C708/C709/C716/C717



Controls

Page 41

CONTROLS

BEATER OFF DELAY

SDNOCES 0:EMIT

> Exit

MIX PUMP OFF DELAY > Standard operation

With Barrel Refrig Exit

MIX PUMP OFF DELAY TIME: 10 SECONDS

> Exit

ENTER FREEZER BOM C 7 0 0 0 0 0 0 0 0

ENTER FREEZER SN M 0 0 0 0 0 0 0

ENTER STORE ID. 0

0 0 0 0

> English Espanol Dansk Francais

Beater Off Delay

This option allows the technician to set the time the beater motor continues to run after the compressor has cycled off. The following screen is displayed upon entering this option.

Pressing the Up Arrow or Down Arrow button increases or decreases the time DELAY by one second respectively. Pressing the SEL button accepts the setting and returns to the Service Menu screen.

Mix Pump Off Delay (C708 and C716 Only)

This option allows the technician to set the amount of time that the mix pump runs after the draw valve has closed (switch opened). It may be set to operate in Standard mode or with Barrel Refrig. In the Standard mode, the agitator operates in the Auto mode, Standby mode, or during a Heat cycle. In the with Hopper Refrig mode, it runs only when the hopper is refrigerating and during the Heat, Hold, and Soak phases of a heat cycle and during the Cool phase of a Heat cycle if the hopper is refrigerating. The default is Standard operation.

Edit Unit ID

This option allows the technician to enter the factory Bill of Materials (BOM) code used to assemble the freezer, the freezer serial number, and the store ID number. The freezer BOM screen is displayed first.

Pressing the SEL button scrolls the cursor to the right one place for each button press. Pressing the Up Arrow or Down Arrow button increases or decreases respectively, with rollover, the selected digits. After the correct freezer BOM has been entered, the freezer serial number screen displays.

After the freezer serial number has been entered, pressing the SEL button displays the STORE ID screen.

Use the arrow buttons to move to the appropriate option and press the SEL button to accept the selection and move to the next screen.

Pressing the Up Arrow or Down Arrow button increases or decreases the time DELAY by 1 second respectively. Pressing the SEL button accepts the setting and returns to the Service Menu screen.

Controls

After the store ID has been entered, pressing the SEL button accepts the setting and returns to the Service Menu screen.

Select Language

This option allows the technician to select one of seven languages available. The following screen will be displayed upon selecting this option:

Pressing the Up Arrow and Down Arrow button moves the cursor to the selection. Pressing the SEL button with the arrow next to one of the seven choices selects that choice and returns to the Service Menu screen. If no language is selected, the factory default is English.

Models C708/C709/C716/C717

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Page 42

CONTROLS

BRUSH CLEAN CYCLE

No Changes Allowed

Press any Key

BRUSH CLEAN CYCLE TIME 14 DAYS

Change

> Exit

MANUAL CONTROL

ERROR MACHINE MUST

BE IN (OFF) MODE

PRESS SEL KEY

MANUAL CONTROL Beater Motor

> START

Exit

MANUAL CONTROL Beater Motor

> OFF

Exit

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:

The following screen will display if the machine is in a brush clean state:

L SYRUP HEATER

R BEATER MOTOR

R COMPRESSOR

R MIX PUMP

R SUCTION VALVE

R BRL LIQ VALVE

R HPR LIQ VALVE

R BRL HEAT VALVE

R HPR HEAT VALVE

R AGITATOR

R SYRUP HEATER

FAN

The freezer must be in the Off mode to use this feature.

Change the number of days between brush clean intervals by using the arrow buttons. Press the SEL button to save the setting and exit back to the Menu.

Always comply with local guidelines on the number of days allowed between Brush Clean Cycles.

Manual Control

This option allows the technician to start and stop key components to test their performance. When selected manually, power will be supplied to each component until the technician selects OFF or exits the screen. The technician must manually select OFF or exit the menu.

> EXIT

L BEATER MOTOR

L COMPRESSOR

L MIX PUMP

L SUCTION VALVE

Press the SEL button to enter the manual control option. See example below:

Pressing the SEL button with the cursor on START sends voltage to the component selected.

Pressing the SEL button with the arrow on OFF turns the component off. Moving the arrow to Exit turns the component off and exits this menu option.

L BRL LIQ VALVE

L HPR LIQ VALVE

L BRL HEAT VALVE

L HPR HEAT VALVE

L AGITATOR

2-16

Models C708/C709/C716/C717

Controls

Page 43

CONTROLS

NET SERVICE PIN ARE YOU SURE? Yes

>No

SOFTWARE UPDATE ARE YOU SURE? Yes

>No

RESET TO DEFAULT ARE YOU SURE?

>Yes

Net Service Pin

The NET SERVICE PIN screen allows the service technician to initialize a network connection for networking kitchens.

Pressing the Up Arrow or Down Arrow button moves the cursor to Yes or No. Pressing the SEL button with the cursor next to either option selects that option and returns to the Menu screen.

Software Update

This option allows the service technician to load a new program from the USB drive.

Note: Only factory supplied USB drives may be used to perform the software update. Do not make copies of factory supplied USB drives with generic USB drives. Failure to follow this instruction can cause issues in successfully completing the software update.)

Reset to Default

The RESET TO DEFAULT option allows the service technician to clear all RAM memory. This screen was added because it will not be possible to remove the RAM chip on future iterations of the UVC3 control. The machine must be in a Unit Cleaned status in order to restore the default settings. Selecting this option in the menu will display a screen asking ARE YOU SURE?

Moving the cursor to Yes and selecting the SEL button restores all factory default values.

Pressing the Up Arrow or Down Arrow button moves the cursor to Yes or No. Pressing the SEL button with the cursor next to either option selects that option and returns to the Menu screen.

Controls

Models C708/C709/C716/C717

2-17

Page 44

CONTROLS

Heat Treatment Cycle

The function of the Heat Treatment Cycle is to raise the temperature of the mix in the freezing cylinder and hopper high enough and quickly enough to destroy bacteria. When this has been accomplished, the temperatures must then be returned to a temperature low enough and quickly enough to retard spoilage.

The Heat Treatment Cycle must be successfully completed at least once every 24 hours or the freezer will automatically lock itself in the Standby mode.

The Heat Treatment Cycle may be started automatically according to the auto heat cycle time.

Important! The freezer must be operating in either the Standby mode or Auto mode before a heat treatment cycle can be started.

There are three phases in a Heat Treatment Cycle: heat, hold, and cool.

The Heat Phase

During this phase, the temperatures of the product in the freezing cylinder and hopper are raised over 150°F (65°C) in 90 minutes or less.

The heat phase timer times out the maximum allowable amount of time the machine can remain in the heat phase of the Heat Treatment Cycle. If the timer exceeds 90 minutes, the machine will lock-out.

The Hold Phase

During the hold phase, the temperature of the product is held over 150°F (65°C) for a minimum of 35 minutes for UVC3 machines / 30 minutes for UVC4 machines to ensure the destruction of all harmful bacteria in the product.

The hold phase timer times out after 35 minutes for UVC3 machines / 30 minutes for UVC4 machines as long as all freezing cylinder and hopper temperatures remain above 150°F (65°C) for the duration of the hold phase.

The Cool Phase

During the cool phase, the product in the freezing cylinder and the hopper are lowered to 41°F (5°C) or less. The machine must complete this phase in less than 90 minutes for UVC3 machines/120 minutes for UVC4 machines.

The cool phase timer measures the maximum allowable time the machine can remain in the cool phase. If the timer exceeds 90 minutes for UVC3 machines or 120 minutes for UVC4 machines, the machine will  lock-out.

The heat cycle TT (Total Time) timer times out the maximum allowable time the machine can remain in the Heat Treatment Cycle (6 hours). If the timer exceeds 6 hours, the machine will lock out. This timer is a combination of the heat, hold, and cool phase times.



2-18

When the entire Heat Treatment Cycle has been completed, the normal display will appear, indicating that the machine is operating in the Standby mode.

Models C708/C709/C716/C717

Controls

Page 45

Heat Treatment Graph

CONTROLS

The purpose of the heat phase is to raise the product temperature above 150°F (65°C) within 90 minutes. To satisfy the control system, the product must actually reach 160°F (71°C) in the freezing cylinder and 155°F (68°C) in the hopper. This requirement ensures that the 150°F (65°C) requirement has been met. Health laws require these parameters to be 150°F (65°C) in 90 minutes; however, the actual amount of time the freezer takes to accomplish this requirement is closer to 60 minutes.

While in the cool phase, the hopper and freezing cylinder



are maintained at standby temperatures.

Note: To accommodate agitator mode operation (with hopper refrigeration), the hopper and standby temperature setpoint maximum and default values are lowered from 39°F to 37°F (3.9°C to 2.8°C).

The cool phase concludes when the hopper and freezing cylinder reach 41°F (5°C). At this point the machine enters Standby mode. While the time given for the cool phase is 90 minutes for UVC3 machines and 120 minutes for UVC4 machines, the actual time is closer to 30 minutes.

Figure 2-3

Note: The maximum allowable cool phase for UVC4 machines is 120 minutes.

Controls

Models C708/C709/C716/C717

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Page 46

CONTROLS

BRUSH CLEAN TIMEOUT FREEZER LOCKED CLEANING REQ’D

> BRUSH CLEAN

FREEZER LOCKED

SYSTEM FAULT FREEZER LOCKED SERVICE REQ’D

> BRUSH CLEAN

HOPPER THERM BAD

FREEZER LOCKED

BARREL THERM BAD

FREEZER LOCKED

Freezer Lock-Out

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.

Important! Always comply with local guidelines for the maximum number of days allowed between brush clean cycles. (See the Manager's Menu for setting the Brush

Clean interval.)

Brush cleaning is the normal disassembly and cleaning

procedure found in the Operator’s Manual. Failure to follow these guidelines will cause the control to lock the freezer out of the Auto mode.

If the Heat Treatment Cycle fails, the screen will display a failure message and return the freezer to the Standby 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.

Thermistor Failure

The following screen is displayed if there has been a thermistor failure (freezing cylinder or hopper) during the heat treatment process:

Pressing the SEL button will indicate which thermistor caused the hard lock.

Hard Lock

There are two causes of a hard lock failure. The freezer will hard lock if either the Brush Clean Timer has elapsed or if a thermistor failure (freezing cylinder or hopper) occurred during a Heat cycle.

Brush Clean Timeout

The following screen will be displayed if a brush clean cycle timeout has occurred:

Pressing the SEL button displays the following screen:

2-20

Note: Three codes have been set up to assist in diagnosing bad thermistor probes. If a probe has shorted (resistance less than 1 ohm), SHRT is displayed on the screen for its respective machine location. If the probe is open (resistance above 1 megohm), OPEN is displayed. If the actual probe environment exceeds 200 °F (93°C), the respective screen display location will read OVER indicating the temperature is out of range.

If the machine has hard locked and an attempt is made to enter Auto mode, the machine will enter the Standby mode and display the following message.

To restore the message that identified the reason for the hard lock, turn the power switch OFF for 5 seconds and then return the power switch to the ON position. The original message with the reason for the hard lock will be displayed.

Models C708/C709/C716/C717

Controls

Page 47

CONTROLS

NO HEAT CYCLE START

REASON

> HEAT CYCLE

BRUSH CLEAN

HEAT TREAT FAILURE FREEZER LOCKED

> HEAT CYCLE

BRUSH CLEAN

PRODUCT OVER TEMP

> HEAT CYCLE

BRUSH CLEAN

DO NOT DRAW

The FREEZER LOCKED message remains on the display until the brush clean requirements are fulfilled. The freezer must be disassembled in order to activate the 5-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.

If the following screen appears, a soft lock has occurred during the heat treatment cycle.

A soft lock can also occur any time during operation when the hopper or freezing cylinder temperature rises above 59°F (15°C), the temperature rises and remains above 45°F (7°C) for more than 1 hour, or the temperature rises and remains above 41°F (5°C) for more than 4 hours.

If a product over temperature condition occurs during operation, the following screen will appear.

If the reason for the soft lock has been corrected, selecting HEAT CYCLE initiates a heat cycle immediately. Selecting BRUSH CLEAN when the previous message is displayed will hard lock the machine and brush cleaning will be necessary.

Following are the variable messages for soft lock failures that appear on the second line of the screen.

POWER SWITCH OFF Power switch was in the OFF

position.

MIX-OUT PRESENT There was a Mix-Out condition

present.

AUTO OR STANDBY OFF

NO HEAT CYCLE TRIED

The machine was not in the Auto or Standby mode.

A heat treatment cycle was not attempted in the last 24 hours. (AUTO HEAT TIME was advanced or a power loss was experienced at the time the cycle was to occur.)

Additional faults which will result in a soft lock condition if they occur during a Heat Treatment Cycle are listed below, along with an explanation of the corrective action.

• 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 mode.

• COMP ON TOO LONG—The compressor run time exceeded the 11-minute timer. Make sure the beater rotation is clockwise. Check the scraper blades and the refrigeration system.

When a soft lock condition has occurred, automatic freezer operation cannot take place until the freezer is disassembled and brush cleaned, or has completed a Heat Treatment Cycle.

Once the freezer is unlocked by starting a Heat Treatment Cycle, the Heat Cycle button will illuminate and the following message is displayed on the screen.

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CONTROLS

FREEZER LOCKED

HEAT TREAT FAILURE

REASON

> HEAT CYCLE

BRUSH CLEAN

If BRUSH CLEAN 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 5-minute timer on the display screen. Once the timer counts down to zero, the lockout is cleared.

To restore the message that identified the reason for the soft lock, turn the power switch OFF for 5 seconds, and then return the power switch to the ON position. The original message with the reason for the soft lock is displayed.

A record of Heat Cycle Data and Lock Out History can be found in the Manager's Menu.

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Page 49

Power Interrupt

POWER SWITCH OFF

TIME: 5:00 HOPPER 41.0 BARREL 41.0

POWER SWITCH OFF Ŧ = Ŧ = Ŧ = Ŧ = Ŧ = Ŧ UNIT CLEANED

UNIT CLEANED

CONTROLS

All operating modes and setpoints are stored in the battery-backed memory. Having been in the Auto, Standby, or any of the Heat mode phases, recovery from a power failure will return the machine to its previous mode of operation after a Memory Initialization function has occurred. If a power failure has occurred, the SAFETY TIME OUT screen will display a Power Failure message on the first line and the audio alarm will be on. This message must be cleared.

If the freezing cylinder or hopper temperature rises above 41°F (5°C) and stays above 41°F (5°C) for 4 hours, the machine will soft lock when power is restored. If the temperature rises above 59°F (15°C) the machine will lock immediately.

14 Day Brush Clean

For the control to recognize that the machine has been brush cleaned, the following criteria must be met.

1. The freezing cylinder and hopper temperatures must be above 60°F (16°C).

2. The Mix-Out and Mix-Low probes must not be satisfied.

A screen showing the status of the elements required for a brush clean are displayed when the power switch is in the OFF position and the machine is not in a brush clean state.

Line 1: Indicates the power switch is OFF.

Line 2: Shows the time (in minutes and seconds)

remaining for the system to enter a Brush Clean state.

Line 3: Shows the hopper temperature.

Line 4: Shows the barrel temperature.

If any of the requirements for a brush clean have not been met, the time displayed will remain at 5:00 minutes. When all the requirements for a brush cleaning are met, and the 5 minutes expire, the screen will change to the second screen, which is the standard POWER SWITCH OFF screen.

3. The door must be removed.

Note: The power switch must be OFF to view the 5 minute countdown timer.

Note: The criteria in Steps 1 to 3 must be met simultaneously for 5 minutes. These criteria are met when the machine is properly brush cleaned according to the Taylor Operator's Manual.

Completion of a successful brush clean resets the Brush Clean Cycle timer and removes the locked condition. A new brush clean date is calculated the first time that the Auto or Standby mode is entered.



When the power switch is placed in the ON position, the third line of the screen displays UNIT CLEANED.

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CONTROLS

Pump Operation

Pump Button

When the Pump button is pressed, the pump is active by itself or with the Wash mode of operation.

Mix Pump

The mix pump will be active for 30 seconds whenever the Auto mode is entered. If a Mix-Out condition forces the

machine into the Standby mode of operation, the mix pump will not be active.

Mix Pump Draw Timer

During the Auto mode, the mix pump will operate for 5 to 30 seconds after every draw of product. The factory setting is 10 seconds.

Item Description Part No.

1 Screw-1/4-20X-3/4 Socket 020128-2

2 Motor-Reducer 32 RPM 036955-34

3 Mount-Motor 036934

4 Sleeve A.-Mix Pump X44761

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Figure 2-4

Item Description Part No.

5 Coupling-Motor-Flexible 047936

6 Seal-Motor Reducer Input 048836

7 Seal-Motor Reducer-Out 048837

8 Nut-Pump Sleeve 036933

Controls

Page 51

Timers

CONTROLS

Stir Cycle Timer

Standby Mode

When the standby temperature setpoint is satisfied, the beater motor activates for 6 seconds every 2 minutes if the stir cycle jumper (W3) is not installed.

If the stir cycle jumper (W3) is installed, the beater motor activates for 6 seconds every 6 minutes.

Note: When the 6-minute stir cycle is selected, the standby barrel temperatures are automatically set to 30°F (-1.1°C) and cannot be adjusted.

Auto Mode

The stir cycle time corresponds with the compressor cycle time. If the compressor cycle time is 5 minutes, the stir cycle will be 5 minutes. If the barrel viscosity is below setpoint, the beater motor and compressor continue to run until the viscosity setpoint is reached.

Heat Mode (Heat Cycle)

The beater motor continues the 2-minute stir cycle until the freezing cylinder temperature rises above 100°F (38°C). Once this temperature is reached, the beater motor runs continuously.

Manual Clean Indicator

The two-digit LED display in the user interface displays the number of days until the next required manual brush cleaning.

24 Hour Last Heat Cycle Event

If the machine runs longer than 24 hours without a successful Heat Treatment Cycle, the machine will soft lock.

Brush Clean Cycle Timer

If the machine runs longer than the programmed number of days (2 to 14) without a successful brush cleaning, the machine will hard lock.

Heat Phase Timer

The heat phase timer times out the maximum allowable time the machine can be in the heat phase of the Heat Treatment Cycle (90 minutes). If the timer exceeds 90 minutes, the machine will lock out.



Heat Mode (Cool Cycle)

The barrel must satisfy the standby temperature setpoint. If the setpoint is satisfied, the beater motor will activate 6 seconds every 2 minutes. The beater motor and compressor will activate if the barrel temperature rises above the standby temperature setpoint.

Mix Pump Timer

Mix pump operation is determined by the selection made in the Mix Pump Off Delay menu item.

If Standard is selected, the mix pump runs for  30 seconds when entering Auto mode. It also runs as long as the draw switch is active and continues for the time programmed in the Mix Pump Off Delay menu.

If Barrel Refrig is selected, the mix pump runs for 30 seconds when entering Auto mode. It also runs as long as the draw switch is active and continues for the time programmed in the Mix Pump Off Delay menu. Each time the barrel begins refrigeration, the mix pump runs the amount of time programmed in the Mix Pump Off Delay and then stops.

Hold Phase Timer

This timer assures that product in the freezing cylinder



and the hopper are held above 150°F (65°C) for a minimum of 35 continuous minutes for UVC3 machines and 30 continuous minutes for UVC4 machines.

Cool Phase Timer

The cool phase timer times out the maximum allowable time the machine can remain in the cool phase of the heat treatment cycle (90 minutes). If the timer exceeds 90 minutes, the machine will soft lock.

Heat Cycle Total Time Timer

The heat cycle TT timer times out the maximum allowable time the machine can be in the heat cycle, which is 6 hours. If the timer exceeds 6 hours, the machine locks.



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CONTROLS

Safety Timeout

Once power is applied to the machine, a 60-second timer places the machine in an Idle state. The tone is turned on in 1-second intervals, and a Safety Timeout message appears on the LCD. This timer can be aborted by pressing any button.

Compressor On Timer

The compressor run time is monitored while the barrel temperature is below 41°F (5°C). The timer is disabled if

product in barrel is above 41°F (5°C), if compressor is not running, or if draw switch is on. In Auto mode, when 11 minutes is counted down, a fault is generated and stored in Fault History, and the compressor is turned off. The compressor starts again with the next compressor cycle time or with the draw switch. Whenever the draw switch is on, the compressor on timer is reset to 11 minutes. In Standby mode, when 11 minutes is counted down, if the product in the barrel is above the standby temperature 37°F (5°C) default) a fault generates, tone sounds, and compressor turns off. The compressor starts again with the next stir cycle.

Brush Clean Timer

This timer times out in 5 minutes when all conditions for a successful brush cleaning are met.

Barrel Hot Gas Solenoid Timer

This timer opens if the barrel temperature is below the barrel heat temp setpoint of 28°F (-2° C). This operation is disabled during the first 10 minutes of the heat cycle.

Compressor Rest

A 120-second compressor rest keeps the compressor from activating after shutting off for 120 seconds, unless a draw event occurs. If a draw event occurs, the compressor starts regardless of the time of last activation.



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Jumper Pin Charts

Jumper Chart—UVC3

CONTROLS

Table 2-1

C708/C709

Feature

Force Brush Clean Status W2 W2

Syrup Heater Enable W3

Open All Left Solenoids W4 W4

Open All Right Solenoids W4

Clock/Calendar Override W5 W5

Force Glycol Pump On

59F Fault Detection Enable J10 - 1 and 2 W2**

Standby Stir Cycle Disable W3 W5

Reduced Mix-Low Sensitivity W6 W6

Reduced Mix-Out Sensitivity W7 W7

7°C/45°F 90 Min. Cool Phase

Unused W1 W1

Unused W3

Left Interface

X58482-SER

C716/C717

Left Interface

X59485-SER

Right Interface

C716/C717

X59485-SER

Disable Control Panel (Self Serve) J10 - 7 and 8 J10 - 7 and 8

**Jumper initially installed at factory.

Table 2-2

UVC3 Control Feature Jumper

Note:

1. Left and right are determined while facing the front of machine.

>41°F for 4 hours and >45°F for 1 hr JP1 - 1 and 2**

Reserved (do not install) JP1 - 3 and 4

Domestic/International (See note 3) JP2 - 1 and 2 **

Reserved (do not install) JP2 - 3 and 4

2. Specified feature is established when the jumper is installed.

3. International mode (jumper removed) enables direct use of Heat Cycle and Standby buttons and hopper temperature display.

Audible enable (do not install) JP3 - 1 and 2

Unused JP3 - 3 and 4

**Jumper initially installed at factory.

Table 2-3

Personality Board

0–6 Beater Motor Amperage (do not use) A

0–12 Beater Motor Amperage B**

**Jumper initially installed at factory.

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CONTROLS

Jumper Chart—UVC4

Table 2-4

C708/C709

Feature

Force Brush Clean Status W2 W2

Syrup Heater Enable W3

Open All Left Solenoids W4 W4

Open All Right Solenoids W4

Clock/Calendar Override W5 W5

Force Glycol Pump On

59°F Fault Detection Enable J10 - 1 and 2 W2**

Standby Stir Cycle Disable W3 W5

Reduced Mix-Low Sensitivity W6 W6

Reduced Mix-Out Sensitivity W7 W7

7°C/45°F 90 Min. Cool Phase

Unused W1 W1

Unused

Left Interface

X58482-SER

C716/C717

Left Interface

X59485-SER

C716/C717

Right Interface

X59485-SER

Disable Control Panel (Self Serve) J10 - 7 and 8 J10 - 7 and 8

**Jumper initially installed at factory.

Table 2-5

UVC4 Control Feature Jumper

>41°F for 4 hours and >45°F for 1 hr JP1 - 1 and 2**

Reserved (do not install) JP1 - 3 and 4

Domestic/International (See Note 3) JP2 - 1 and 2 **

Reserved (do not install) JP3 - 1 and 2

Reserved (do not install) JP4 - 1 and 2

0–6 Beater Motor Amperage (do not use) A

0–12 Beater Motor Amperage B**

**Jumper initially installed at factory.

Note:

1. Left and right are determined while facing the front of

Table 2-6

Personality Board

machine.

Proximity Sensor (See Note 4) JP5 - 1 and 2**

2. Specified feature is established when the jumper is

Reserved (do not install) JP6 - 1 and 2

Reserved (do not install) JP7 - 1 and 2

Reserved (do not install) RTCK - 1 and 2

Reserved (do not install) DBGEN - 1 and

**Jumper initially installed at factory.

installed.

3. International mode (jumper removed) enables direct use of Heat Cycle and Standby buttons and hopper temperature display.

4. Jumper should be installed on shake machines to enable proximity sensor. It is not active on soft serve machines; jumper can remain installed.

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Page 55

Beater Stir Cycles

CONTROLS

Standby

When the machine is in the Standby mode, the stir cycle will be activated. The beater stir cycle timer counts down 2 minutes (in seconds) and then activates the beater motor for 6 seconds. After the stir cycle, the process repeats; the timer counts down 2 minutes, and the beater runs for 6 seconds.

Hopper Temperature

To accommodate agitator mode (with Hopper Refrig) operation, the hopper and standby temperature setpoint maximum and default values are lowered from 39°F to 37°F (3.9°C to 2.8°C). In the Auto or Standby mode, the compressor starts when the hopper temperature is above the setpoint and stops when the hopper temperature reaches the setpoint 28°F (-2°C).

The hopper liquid solenoid opens when the hopper temperature rises above this setpoint and closes when the hopper temperature is below its setpoint 28°F (-2°C).

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CONTROLS

VISCOSITY SETTING VISC = 2.8 AMPS CURRENT = 0.0

Setting Viscosity

Viscosity

Viscosity is the term used when referring to product appearance, temperature, thickness, and firmness.

Soft serve viscosity is measured by monitoring the amperage load of the beater motor. The amperage load of the beater motor is low when the product in the freezing cylinder is liquid. As the product freezes (thickens), the amperage load increases. When the

amperage load reaches the setpoint, the refrigeration cycle discontinues.

The factory setting (setpoint) for soft serve viscosity is

2.8 amps. The amperage measurement is determined by

monitoring the L1 leg of power being delivered to the beater motor. To adjust the serving viscosity, it may be necessary to raise or lower the amperage setpoint. Adjust in increases of 0.1 amps.

The serving temperature of soft serve product may vary throughout the day. The serving temperature may range from 16°F to 19°F (-8.8°C to -7.2°C).

Figure 2-5

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Controls

Page 57

C708/C709 Control Overview

UVC3

CONTROLS

Controls

Figure 2-6

Models C708/C709/C716/C717

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Page 58

CONTROLS

C708/C709 Control Overview – UVC4

2-32

Figure 2-7

Models C708/C709/C716/C717

Controls

Page 59

C708/C709 Control Overview – UVC4 Field Updated

CONTROLS

Controls

Figure 2-8

Models C708/C709/C716/C717

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Page 60

CONTROLS

C716/C717 Control Overview

UVC3

2-34

Figure 2-9

Models C708/C709/C716/C717

Controls

Page 61

C716/C717 Control Overview—UVC4

CONTROLS

Controls

Figure 2-10

Models C708/C709/C716/C717

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Page 62

CONTROLS

C716/C717 Control Overview—UVC4 Field Updated

2-36

Figure 2-11

Models C708/C709/C716/C717

Controls

Page 63

Universal Control Board

Universal Control Board Connections—UVC3

CONTROLS

Item Description Function

1 5 VDC Power Supply Supplies power to UVC3 Board (Range: 4.75 - 5.25 VDC)

2 LED When board is powered, LED flashes On (0.5 sec.) and Off (0.5 sec.)

3 RAM Chip Stores program settings from menu in memory

4 EPROM Chip PLCC Chip Software Version Number

5 JP1 Pins See table on page 2-28

6 JP3 Pins See table on page 2-28

7 Audible Tone Device See table on page 2-28

8 JP2 Pins See table on page 2-28

9 USB Cable Connection Communication to control panel interface board

Figure 2-12

Controls

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Page 64

CONTROLS

Universal Control Board Connections—UVC4

Beginning in January 2011, Taylor started transitioning from the UVC3 to the UVC4.

Note: UVC4 can only be used to replace UVC3 boards. UVC4 is not compatible with UVC1 or UVC2.

The following chart identifies the connections on the board:

Table 2-7

Item Jumper No. Function

1 J1 5 VDC power input

2 J11 50 pin digital cable-right side

3 J10 50 pin digital cable-left side

4 J12 Local On-site Network (LON) cable

5 D2 Heartbeat LED

Figure 2-13

Important: See “UVC4 Electrostatic Discharge and Proper Handling Procedures” on page 2-39 before handling a UVC4 board.

Item Jumper No. Function

6 J4 USB program port

7 J2 18 pin power loss analog cable

8 J7 18 pin amp draw and thermistor

probe data analog cable

9 J13 User interface cable

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CONTROLS

Universal Control

The Universal Control is the command center for the machine. The software program for the UVC3 control, including multiple language selections, resides in the erasable programmable read-only memory (EPROM) chip. The EPROM chip is not used on the UVC4 Universal Control.

The settings in the menus are saved in the random access memory (RAM) chip. Removing and reinstalling the RAM chip restores the factory default settings in the menus. The RAM chip must be inserted with the notch towards the side of the socket with the notch.

Power is supplied to the 5 VDC terminal on the UVC3/ UVC4 board from the interface board. The operating voltage range for the control is 4.75VDC to 5.25VDC.

Note: Beginning with software version 1.07, the default settings can be restored in the Service Menu. This can only be done when the machine is in a Unit Cleaned State. The machine must be cleaned or the W-2 on the shake side interface board must be jumped out to enter a Unit Cleaned State. (See “Reset to Defaults” on page 2-17.)

Note: For installations with low voltage supply (210V or less) it may be necessary to wire the 16 VAC transformer on the low voltage tap. Low voltage supplied to the interface board, in turn reduces the voltage supplied to the UVC3/UVC4 board and may cause intermittent power failure tripping or the control panel keys do not function when the machine is powered.

The UVC3/UVC4 communicates with the control panel interface board through a USB Cable.

There are three sets of pins on the UVC3 board and four sets of pins on the UVC4 board. Refer to the following chart to identify their function.

Note: Use Part No. 040084-001 Connector-Programing Shunt to jumper pins.

Starting Serial Numbers Built With UVC4

C708/C709 M1084626 X69354-SER C716/C717 M1066352 X69356-SER

UVC3 to UVC4 Conversion Kit Part Numbers

C708/C709 X69354-SER1 C716/C717 X69356SER1

UVC4 Electrostatic Discharge and Proper Handling Procedures

The UVC4 board is more susceptible to electrostatic discharge than the UVC3 board. Always use the following procedures to prevent damage when handling the board.

1. Leave boards in their anti-static packaging until they

are ready to be installed.

2. Dissipate static electricity before handling the board

by touching a grounded metal object, such as the machine's unpainted metal chassis.

3. If possible, use anti-static devices such as wrist

straps and floor mats.

4. Always hold the board by its edges. Avoid touching

the contacts and components on the board.

5. Take care when connecting or disconnecting cables.

A damaged cable can cause a short in the electrical circuit.

6. Prevent damage to the connectors by aligning the

connector pins before connecting the cable. Misaligned connector pins can cause damage to components at power-on.

7. When disconnecting a cable, always pull on the cable

connector or strain-relief loop, not on the cable itself.



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CONTROLS

UVC4 Cables – Factory Installed

Figure 2-14

Boards installed at the factory have two cables connected to the UVC4 board. Connected at J13 is the USB cable part number 069023.

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Important! See “UVC4 Electrostatic Discharge and Proper Handling Procedures” on page 2-39 before handling a UVC4 board.

Controls

Page 67

UVC4 Cables – Conversion Kit For Field Replacements

CONTROLS

Figure 2-15

The UVC4 board is interchangeable with the UVC3 board. When replacing a UVC3 board in the field, adapter cables are needed. Cable part number 069024 (1) connects to the existing USB cable.

Controls

Models C708/C709/C716/C717

Important! See “UVC4 Electrostatic Discharge and Proper Handling Procedures” on page 2-39 before handling a UVC4 board.

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CONTROLS

C708/C709 UVC4 Update Instructions

Estimated Time: 35 minutes

Important!

• See “UVC4 Electrostatic Discharge and Proper Handling Procedures” on page 2-39 before handling a UVC4 board.

• Before performing the software update, reset the control to defaults. This will clear the RAM memory so the new software can be loaded.

• Only use factory supplied USB drives to perform

1. Enter the Service menu (5231) to copy the current

2. Place the machine in the Off mode and turn the syrup

software update. Do not make copies of factory supplied USB drives with generic USB drives. Failure to follow this instruction can cause issues in successfully completing the software update.

• Wear appropriate personal protective equipment.

machine settings.

heaters off.

12. Check jumper position JP7. Remove the jumper, if present, and do not re-install.

13. Access the Service Menu. Go to Software Update and select Yes to begin Update process.

14. Wait 3 minutes for the software to complete the update.

15. After the Lamp Test enter the Service Menu and clear any faults. Reset machine to defaults.

16. Re-enter all settings copied earlier.

17. Remove the USB flash drive from the UVC4 board and store it in the tool kit.

18. Place the machine in the Auto mode. Turn the syrup heaters back on, if that was the original state before the installation.

19. Verify the machine is operating properly (shutting off at proper viscosity and no faults).

20. Draw at least one soft serve cone to verify that the product appearance is acceptable.

21. Carefully reinstall the control box cover, side panel, and drip tray.

WARNING! Always disconnect electrical power prior to cleaning the condenser. Failure to follow this instruction may result in electrocution.

3. Remove the drip tray from the left side of the

machine and place it on top of the machine.

4. Remove the 4 screws from Panel-Side-Left C708,

C709 (056963).

5. Remove the 4 screws from the Cover-Control Box

C708, C709 (056929).

6. Install a jumper on the W2 on the interface board.

7. Reconnect power to the machine and turn the power

on. Verify that the display says UNIT CLEANED.

8. Remove the jumper from W2 on the interface board.

9. Enter the Service menu and go to the option, Reset

to Defaults.

10. Perform a Reset to Defaults by selecting YES to

clear all RAM memory.

11. Install the USB flash drive in the J4 port on the UVC4

board.

C716/C717 UVC4 Update Instructions

Estimated Time: 35 minutes

Important!

• See “UVC4 Electrostatic Discharge and Proper Handling Procedures” on page 2-39 before handling a UVC4 board.

• Before performing software update, reset the control to defaults. This will clear the RAM

memory so the new software can be loaded.

• Only use factory supplied USB drives to perform software update. Do not make copies of factory supplied USB drives with generic USB drives. Failure to follow this instruction can cause issues in successfully completing the software update.

• Wear appropriate personal protective equipment.

1. Enter the Service Menu (5231) to copy the current machine settings.

2. Place both sides of the machine in the Off mode and turn the syrup heaters off.

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CONTROLS

12. Check jumper position JP7. Remove the jumper, if

present, and do not reinstall.

WARNING! Always disconnect electrical power prior to cleaning the condenser. Failure to follow this instruction may result in electrocution.

3. Remove the two drip trays from the upper rear of the

machine and place them on top of the machine.

4. Remove the two screws at the bottom of the 

Panel-Rear-Upper C716, C717 (064258).

5. Remove the six screws from the Cover-Control Box

C16, C717 (067984).

6. Install a jumper on the W2 on the left side interface

board.

7. Reconnect power to the machine and turn power on.

Verify that the display says UNIT CLEANED.

8. Remove the jumper from W2 on the left side interface

board.

9. Enter the Service menu and go to the option, Reset

to Defaults.

10. Perform a Reset to Defaults by selecting Yes to clear

all RAM memory.

13. Access the Service Menu. Go to Software Update and select Yes to begin update process.

14. Wait 3 minutes for the software to complete the update.

15. After the lamp test, enter the Service Menu and clear any faults. Reset machine to defaults.

16. Re-enter all settings copied earlier.

17. Remove the USB flash drive from the UVC4 board and store it in the tool kit.

18. Place both sides of the machine in the Auto mode. Turn the syrup heaters back on, if that was the original state before the installation.

19. Verify both sides of the machine are operating properly (shutting off at proper viscosity and no faults).

20. Draw at least one soft serve cone per side to verify that the product appearance is acceptable.

21. Carefully reinstall the control box cover, back panel, and drip trays.

11. Install the USB flash drive in the J4 port on the UVC4 board.

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CONTROLS

Refrigeration System—Hot Gas Treatment

The refrigeration system utilizes a main compressor that provides heating and cooling for the freezing cylinder and the hopper. An AXV expansion valve is used on the freezing cylinder to provide consistent product quality by maintaining the evaporating temperature at

-15°F (-26°C).

A capillary tube on the hopper system for the cool phase provides the required control of refrigerant mass flow to control refrigerant floodback to the compressor.

There is a provision for liquid refrigerant injection to the compressor suction to control excessive compressor discharge temperature during the cool phase. The bulb is located on the discharge line near the compressor to sense when the discharge temperature approaches 250°F (121°C).

Note: The valve opens at 230°F (110°C).

There are two liquid line solenoid valves to provide control over the refrigeration to the hopper and freezing cylinder during the cool phase. Both liquid line solenoids are closed during the hot gas heat phase.



Two hot gas solenoid valves are used during the heat phase to direct the compressor discharge gas to the freezing cylinder and hopper, bypassing the condenser, freezing cylinder AXV and the hopper capillary tube.

When only the hopper is being cooled, a hot gas bypass valve is used to divert refrigerant gas to the suction line.

In order to maintain product temperature above 150°F (65.5°C) for 35 minutes during the hold phase, the compressor will cycle on and off.

The main system condenser is a 3-row 5/16 in. tube and raised lance fin condenser. The liquid line receiver helps control the variable amount of free refrigerant in the system. A filter dryer is provided. There is a liquid line - suction line heat exchanger on the main refrigeration system.

Note: This information applies to both sides on the C716 and C717 - independent systems.



2-44

Models C708/C709/C716/C717

Controls

Page 71

Checking and Setting Refrigeration Valves

CONTROLS

All Machines

This machine is equipped with a safety door lock. Freezer operation is not allowed in the Auto, Standby, or Wash modes if the door is off. In order to perform a frost check or a beater rotation check, the technician must use a magnet to bypass the reed switch located behind the front panel.

Note: To check various pressures in the refrigeration system, the machine must be assembled and have product in both the hopper and the freezing cylinder.

Gauges should not be installed on these freezers unless a problem is suspected with the refrigeration system. Once you have determined there is a problem, perform the following procedures:

1. Install refrigeration gauges on the service valves located behind the lower front panel. Remove the safety cover for complete access.

2. Install a suction line gauge on the Schrader valve fitting on the EPR valve. (See the refrigeration schematic.)

4. When the compressor has cycled off, place the machine in Auto mode. Set the freezing cylinder expansion valve to 20 psi to 22 psi (138 kPa to 145 kPa) and the water valve to 255 psi (1,758 kPa) if so equipped.

5. Place the freezer into a Heat Cycle. The hopper only will heat for the first 10 minutes and then the freezing cylinder will begin to heat.

6. Once the hopper and freezing cylinder are above 100°F (38°C), set the OPR valve to 21 psi (145 kPa) by reading the pressures at the service valves. Failure to follow these procedures will result in improperly set valves and poor freezer performance. To reclaim and recharge a system, install a jumper on W4 on the interface board to open all solenoids. Remove the jumper upon completion of the recharge and check valve settings as outlined above.

Note: Each side must be set individually on the C716 and C717.

3. Place the freezer in the Standby mode. When the freezing cylinder is satisfied and the hopper only is cooling, adjust the evaporator pressure regulator (EPR) valve to 60 psi (414 kPa) by reading the suction gauge on the EPR access fitting.

Note: The coarse adjustment of the EPR valve can be made starting immediately after the hopper only is still cooling. It gets easier to make the final adjustments when the hopper gets closer to the cycle off temperature. After the coarse adjustment is made, observe, and make the final adjustment when the temperature reaches 37°F (2.8°C).

Controls

Models C708/C709/C716/C717

2-45

Page 72

CONTROLS

Refrigeration Schematic

Figure 2-16

Note: Refrigeration diagram shows only one side of the Models C716 and C717.

2-46

Models C708/C709/C716/C717

Controls

Page 73

Refrigeration System Components

Table 2-8

Name Description

Mix Hopper 20 qt. capacity, wrapped with 40 ft. of 5/16 in. copper tubing

Freezing Cylinder Conventional, 3.4 qt. (3.2 L) flooded evaporator

Condenser Lanced fin

Fans-Condenser Motor A.-Fan 185 W 1400 RP

CONTROLS

Compressor Bristol (see Parts Update #196)

AXV Automatic expansion valve for the freezing cylinder

TXV Thermo controlled expansion valve for the mix hopper / Replaced w/Tube-

capillary S/N M603657

SV01 Barrel liquid solenoid valve

SV02 Hopper liquid solenoid valve

SV03 Barrel hot gas solenoid valve

SV04 Hopper hot gas solenoid valve

SV05 Barrel suction solenoid valve

SV06 Discharge bypass line solenoid valve

EPR Alco, IPR-6, Inlet Pressure Upstream Regulator

OPR Alco, OPR-10, Outlet Pressure Downstream Regulator

TREV Temperature Responsive Expansion Valve

Filter/Dryer Dryer-Filter-HP62-3/8 x 1/4S

Heat Exchanger 15.25 joined length

Receiver Accumulator

Controls

Models C708/C709/C716/C717

2-47

Page 74

CONTROLS

Table 2-9

Comp Label Description Function Basic Operating Logic

Mix Hopper 20 qt. (18.9 L) capacity,

conventional copper wrap.

Freezing Cylinder

Condenser Lanced fin. Cooling of compressed refrigerant.

Fan Condenser

3.4 qt. (3.2 L) capacity, conventional copper wrap.

Compact fan. Provides air flow to remove heat from

Compressor Hermetically sealed. Compresses the refrigerant. Used for

TXV Thermostatically controlled

expansion valve in the hopper circuit.

AXV Automatic expansion valve of the

freezing cylinder circuit.

SV01 Barrel liquid solenoid valve. Controls the flow of refrigerant to the AXV. Enabled in the Auto mode,

Storage of product mix, evaporator.

Freezing of product, evaporator.

condenser heat exchanger.

barrel and hopper cooling in Auto, Standby, and the cooling phase of the heat mode.

Controls the refrigerant flow during cooling of the hopper.

Controls the refrigerant flow during the cooling of the freezing cylinder.

On with the compressor in Auto mode, Standby mode, and the cooling phase of the Heat mode. Operates for 30 seconds after the compressor shuts off.

Enabled in Auto mode, Standby mode, and the Heat modes, Off in Wash and Off modes.

Standby mode, and the cooling phase of the Heat mode. Off in the Wash mode, Off mode, and heating phase of the Heat mode.

SV02 Hopper liquid solenoid valve. Controls the flow of refrigerant to the

TXV01.

SV03 Barrel hot gas solenoid valve. Controls the flow of hot gas refrigerant to

the barrel.

SV04 Hopper hot gas solenoid valve. Controls the flow of hot gas refrigerant to

the hopper.

SV05 Barrel suction solenoid valve. Controls the flow of refrigerant at the low

pressure side of the barrel.

Enabled in the Auto mode, Standby mode, and the cooling phase of the Heat mode. Off in the Wash mode, Off mode, and heating phase of the Heat modes.

Enabled in the heat phase of the Heat mode. Off in the Auto mode, Standby mode, and the cooling phase of the Heat mode.

Enabled anytime the barrel is being heated or cooled. Its purpose is to prevent refrigerant flow when the hopper only is being refrigerated to prevent barrel freeze up.

2-48

Models C708/C709/C716/C717

Controls

Page 75

CONTROLS

Comp Label Description Function Basic Operating Logic

EPR Inlet Pressure Upstream Regulator. Limits the minimum refrigerant pressure in

the hopper (currently set to 60 psig).

OPR Outlet Pressure Downstream

Regulator.

TREV Temperature Responsive

Expansion Valve.

Filter/Dryer This keeps moisture, dirt, metal, and chips

Heat Exchanger (sub cooler)

Receiver The liquid receiver is a storage tank for

Limits the maximum pressure in the compressor inlet (currently set to 21 psig).

Controls the injection of liquid refrigerant into the suction line.

from entering the refrigerant flow control valves.

This allows the liquid refrigerant to be cooled before it reaches the AXV and TXV.

liquid refrigerant.

Limits the minimum refrigerant pressure in the hopper prevents freezing of product mix on the hopper wall.

Limits the inlet pressure to the compressor helps prevent overloading of the compressor.

Liquid refrigerant is injected into the suction line to lower the discharge temperature of the compressor during the cooling phase of the Heat mode.

When the liquid is sub-cooled before it reaches the refrigerant control, the refrigeration effect per unit mass of refrigerant is increased.

The use of a liquid receiver makes the quantity of refrigerant in a system less critical.

Controls

Models C708/C709/C716/C717

2-49

Page 76

CONTROLS

Notes:

2-50

Models C708/C709/C716/C717

Controls

Page 77

Section 3:

Troubleshooting

• General Troubleshooting Guide

• Electrical Troubleshooting Guide

• C708/C709 Electrical Troubleshooting Guide

• C716/C717 Electrical Troubleshooting Guide

• Pump Style Freezer Troubleshooting

• Solenoid Valve Failure Troubleshooting

• Bacteria Troubleshooting

Troubleshooting

Models C708/C709/C716/C717

3-1

Page 78

TROUBLESHOOTING

General Troubleshooting Guide

Table 3-1

Problem Cause Remedy

1. Compressor will not run. a. The power switch is in the OFF position. a. Place the switch in the ON position.

b. An error has been made in keypad

selection.

c. The contactor is faulty. c. Replace the contactor.

d. The compressor has burned out. d. Replace the compressor.

e. The fuse or circuit breaker has blown. e. Replace the fuse, or turn on the breaker.

f. Tripped overload (compressor). f. Place the power switch in the OFF position.

g. Off on reset (beater motor). g. Press the RESET button.

2. Machine operates long. a. Scraper blades are worn. a. Replace scraper blades.

b. High overrun product (C708/C716). b. Check pump operation for correct air/mix

3. Head pressure is too high.

a. Condenser is dirty. a. Clean condenser.

b. Water valve is out of adjustment or is

restricted.

c. Insufficient air space around machine. c. Make sure there is sufficient air space

b. Press the correct button for Auto mode

operation.

Allow the compressor to cool and the overload to close before returning the power switch to the ON position. Check the connections of the bulbs.

ratio.

b. Check the adjustment and the water supply.

surrounding the machine (see specifications on pages 1-5,1-7,1-9, and 1-11).

d. Refrigerant overcharge. d. Correct refrigerant charge.

e. Blower is faulty. e. Replace the blower.

4. Head pressure is too low. a. Refrigerant shortage. a. Repair leak and recharge.

5. Liquid line is hot. a. Shortage of refrigerant. a. Repair leak and recharge.

6. Excessive mix leakage through the rear of the machine into the drip pan.

7. Low overrun. a. Bad scraper blades. a. Replace scraper blades.

a. Worn or missing drive shaft seal. a. If worn, nicked, or missing, replace the drive

shaft seal.

b. Inadequate lubrication. b. Lubricate properly.

c. Drive shaft rotates forward. c. Check gear alignment.

b. Faulty air/mix pump components 

(C708/C716).

c. Restricted air intake (air/mix pump) 

(C708/C716).

d. Long on cycles. d. See Problem 2.

b. Inspect air/mix pump components and

replace those found faulty.

c. Clear restriction.

3-2

Models C708/C709/C716/C717

Troubleshooting

Page 79

TROUBLESHOOTING

Problem Cause Remedy

8. Draw valve leaking. a. Worn or missing draw valve O-rings. a. Replace regularly.

b. Inadequate lube on draw valve O-rings. b. Lubricate properly.

c. Wrong type of lubricate being used. c. Use proper lubricant. Example: Taylor Lube

High Performance.

9. Product is not being fed into the freezing cylinder.

10. No product being dispensed with draw valve open and machine in “AUTO” mode.

11. Product too soft. a. Not enough air space surrounding

a. Inadequate mix in the hopper (Mix-Out light

is illuminated).

b. Air/mix pump incorrectly assembled (C708/

C716).

c. Incorrect usage of the mix feed tube

(C709/C717).

a. Plugged door spout. a. Break down the machine and dislodge the

b. Beater rotating counterclockwise. b. Correct beater rotation to clockwise.

c. Inadequate mix in the hopper (Mix-Out light

is illuminated).

machine.

b. Bad scraper blades. b. Replace scraper blades.

c. Dirty air-cooled condenser. c. Clean monthly.

d. Outdated mix. d. Use fresh mix.

e. Refrigerant shortage. e. Locate leak and repair.

a. Fill hopper with mix.

b. Assemble pump according to instructions in

the Operator's Manual.

c. Follow the correct feed tube procedures and

use of the air orifice.

door spout clog.

c. Fill hopper with mix.

a. Allow 6 in. (152 mm.) minimum clearance

around machine. Allow 7-1/2 in. floor clearance.

f. Product viscosity set too warm. f. Adjust product viscosity.

g. Incorrect usage of the mix feed tube

(C709/C717).

12. Plugged door spout. a. Poor scraping. a. Replace scraper blades.

b. Damaged draw valve O-rings. b. Replace O-rings.

c. Damaged beater assembly. c. Inspect and replace if necessary.

d. Worn rear shell bearing. d. Inspect and replace if necessary.

13. No freezer operation when placing machine in any mode of operation.

14. Product too stiff. a. Product viscosity set too cold. a. Adjust product viscosity.

15. Mix in the hopper is too

cold.

a. Machine unplugged. a. Plug in machine.

b. Circuit breaker is turned off or fuse is

blown.

c. Power switch is in the OFF position. c. Place power switch in the ON position.

b. Incorrectly assembled or malfunctioning

air/mix pump (C708/C716).

a. Temperature is out of adjustment. a. Adjust hopper temperature.

b. Agitator paddle is not installed. b. Install the agitator paddle.

g. Follow the correct feed tube procedures and

use of the air orifice.

b. Turn on circuit breaker or replace fuse.

b. Reassemble pump or replace faulty

components.

Troubleshooting

Models C708/C709/C716/C717

3-3

Page 80

TROUBLESHOOTING

Problem Cause Remedy

16. Mix in the hopper is too warm.

17.Drive shaft is stuck in the gear box coupling.

18. Freezing cylinder walls

are scored.

19. Product is popping when

drawn.

20.Freezer shuts off and produces a fault tone.

a. Temperature is out of adjustment. a. Adjust hopper temperature.

b. Agitator not installed. b. Install the agitator.

a. Corners of the drive shaft, coupling, or both

are rounded.

b. Mix and lubricant are collected in the drive

coupling.

a. Bent beater assembly. a. Replace beater.

b. Missing or worn front bearing. b. Install or replace front bearing.

c. Scraper blades incorrectly installed. c. Install scraper blades over the appropriate

a. Draw rate set too fast. a. Set the draw rate at 5 ounces to 7.5 ounces

b. Pump is assembled/lubed incorrectly

(C708/C716).

c. Freezer has been turned on and off several

times.

a. Fault alert. a. Check the fault screen in the operator's

a. Replace the necessary component(s). Do

not lubricate the end of the drive shaft.

b. Brush clean the rear shell bearing area

regularly.

securing pin on the beater assembly.

of product per 10 seconds.

b. Assemble pump according to instructions in

the Operator's Manual.

c. Place the machine in the OFF position only

when necessary.

menu.

b. Insufficient air space. b. Allow 6 in. (152 mm) minimum clearance

around both sides of machine and place the back against a wall.

21. Soft lock. a. No heat cycle tried. a. Press the Auto button to place freezer in the

Heat Treatment Cycle, or press the Wash button and brush clean the freezer.

22.When the Auto button is pressed, freezer goes into Standby mode.

23.Machine changes modes

or shuts itself off.

24.Machine enters a heat treatment cycle at odd times.

25.Product Door Off

message is displayed.

a. Mix-out condition. a. Add mix.

b. Hard lock. b. Check the display screen for instructions.

a. Faulty connections of membrane switch. a. Replace faulty components.

a. Faulty interface board. a. Replace interface board.

a. The door is off or is loose. a. Install the door and tighten the handscrews.

b. Door switch is faulty. b. Replace the switch.

c. The door switch is not properly installed. c. Make sure the door switch is fully inserted.

d. The 24V relay is faulty. d. Replace the relay.

e. The agitator motor is faulty. e. Replace the motor.

3-4

f. There is low voltage from the 24V

transformer.

Models C708/C709/C716/C717

f. Check the power supply connections,

shorts, replace transformer.

Troubleshooting

Page 81

TROUBLESHOOTING

Electrical Troubleshooting Guide

Modes of Operation

Table 3-2

Heat

Component

Heat Hold Cool

Compressor X X X X X

Beater Motor X X X X X X

Fan X X X X X

Air/Mix Pump Motor XX

Agitator X X X X X

Standby Wash Auto Pump

Troubleshooting

Models C708/C709/C716/C717

3-5

Page 82

TROUBLESHOOTING

C708/C709 Electrical Troubleshooting Guide

Power Cord Plugged In/Power Switch in the

OFF Position

L1 power from the power cord connection travels through the EMI filter to the 16 volt transformer. The transformer supplies 16 VAC to terminals A and B on the interface board.

The interface board sends 5 VDC to terminal J1 on the universal board.

Power Switch in the ON Position

L1 power from the power cord connection is supplied to

the terminals marked L1 on the interface board. To supply power to the L1 terminal on the interface board, L1 travels through the following switches: the power switch, the beater motor overload switch, the compressor high limit switch, and the 15 amp. fuse.

Power Switch ON - Select: WASH

With L1 power supplied to the L1 terminal of the interface board, power is supplied through pin-7 of the J6 terminal, beater interlock relay, and to the beater motor contactor coil.

To operate the agitator, L1 is supplied to the agitator motor power transformer (24V) from the power switch. The transformer supplies power to terminal J5, pin-1 of the interface board. From pin-1, power is supplied through the following pin:

Pin-4 for agitator motor

Power Switch ON - Select: Auto Mode

(Draw Switch Activated)

Power is sent from the L1 terminal on the interface board through the following pins on the J6 terminal:

Pin-7 for the beater motor contactor coil Pin-6 for the condenser fan Pin-5 for the air/mix pump (The pump runs for 10 seconds after the draw handle is closed.) Pin-4 for the suction solenoid Pin-2 for the barrel liquid solenoid Pin-1 for the compressor contactor coil

At the completion of a draw, the beater motor and compressor are cycled off by the personality board amp. monitor.



Power Switch ON - Select: Auto Mode

Power Switch ON - Select: PUMP

With L1 power supplied to the L1 terminal of the interface board, power is supplied through pin-5 of the J6 terminal to the air/mix pump motor overload, and then to the air/mix pump motor.



Power Switch ON - Select: Auto Mode

Power is sent from the L1 terminal of the interface board through the following pins on the J6 terminal:

Pin-7 for the beater motor contactor coil Pin-6 for the condenser fan Pin-5 for the air mix pump (30 seconds only) Pin-4 for the barrel suction solenoid Pin-3 for the hopper liquid solenoid

Pin-2 for the barrel liquid solenoid Pin-1 for the compressor contactor coil

(Heat Cycle Activated)

Power is sent from the L1 terminal on the interface board through the following pins of the J6 terminal:

Pin-7—Beater Motor Pin-6—Condenser Fan Pin-4—Refrigeration Evaporator Suction Solenoid Pin-1—Main Refrigeration Compressor Contactor Coil

L1 is supplied to the power transformer (24 VAC) from the power switch. The transformer supplies power to terminal J5, pin 1 of the interface board. From pin 1, power is supplied through the following pins:

Pin-6—Barrel Hot Gas Solenoid Relay Pin-5—Hopper Hot Gas Solenoid Relay Pin-4—Agitator Motor

3-6

Models C708/C709/C716/C717

Troubleshooting

Page 83

C716/C717 Electrical Troubleshooting Guide

TROUBLESHOOTING

Power Cord Plugged In/Power Switch in the

OFF Position

L1 power from the power cord connection travels through the EMI filter to the 16 volt transformer. The transformer supplies 16 volts AC to terminals A and B on the interface board.

The interface board sends 5 volts DC to terminal J1 on the universal board.

Power Switch in the ON Position

L1 power from the power cord connection is supplied to the terminals marked L1 on the interface board. To supply power to the L1 terminal on the interface board, L1 travels through the following switches: the power switch, the beater motor overload switch, the compressor high limit switch and the 15 amp fuse.

Power Switch ON - Select: Wash

With L1 power supplied to the L1 terminal of the interface board, power is supplied through pin-7 of the J6 terminal, beater interlock relay and to the beater motor contactor coil.

Power Switch ON - Select Pump

With L1 power supplied to the L1 terminal of the interface board, power is supplied through pin-5 of the J6 terminal to the air/mix pump motor overload and then to the air/mix pump motor.



the interface board. From pin-1, power is supplied through the following pin-4 for the agitator motor.

Power Switch ON - Select Auto Mode

(Draw Switch Activated)

Power is sent from the L1 terminal on the interface board through the following pins on the J6 terminal:

Pin-7 for the beater motor contactor coil Pin-5 for the air/mix pump (The pump runs for 10 seconds after the draw handle is closed.) Pin-4 for the suction solenoid Pin-2 for the barrel liquid solenoid Pin-1 for the compressor contactor coil

At the completion of a draw, the beater motor and compressor are cycled off by the personality board amp. monitor.



Power Switch ON - Select Auto Mode

(Heat Cycle Activated)

Power is sent from the L1 terminal on the interface board through the following pins of the J6 terminal:

Pin-7—Beater Motor Pin-4—Refrigeration Evaporator Suction Solenoid Pin-1—Main Refrigeration Compressor Contactor Coil

L1 is supplied to the power transformer (24 vac) from the power switch. The transformer supplies power to terminal J19, pin-1 of the interface board.

From pin-1, power is supplied through the following pins:

J18

Power Switch ON - Select Auto

Power is sent from the L1 terminal of the interface board through the following pins on the J6 terminal:

Pin-7 for the beater motor contactor coil Pin-5 for the air mix pump (30 seconds only) Pin-4 for the barrel suction solenoid Pin-3 for the hopper liquid solenoid

Pin-2 for the barrel liquid solenoid Pin-1 for the compressor contactor coil

To operate the agitator, L1 is supplied to the agitator motor power transformer (24V) from the power switch. The transformer supplies power to terminal J5, pin-1 of

Troubleshooting

Models C708/C709/C716/C717

Pin-2—Agitator Motor Pin-1—Barrel Hot Gas Solenoid Relay Pin-2—Hopper Hot Gas Solenoid Relay

3-7

Page 84

TROUBLESHOOTING

Pump Style Freezer Troubleshooting

Table 3-3

Problem Probable Cause Remedy

1. Air/mix pump will not operate in the Auto mode when the draw valve is opened.

2. Excessive pump cylinder wear.

3. Not enough pressure in the freezing cylinder.

a. The pump drive motor is off on reset. a. Allow the machine to cool and press the

RESET button.

b. Malfunctioning interface board. b. Replace interface board.

c. Faulty pump motor. c. Replace motor.

d. Faulty connection or draw switch. d. Check connections or replace switch.

a. Inadequate or incorrect lubrication of pump

cylinder.

b. Ball crank rotates clockwise. b. Rewire ball crank rotation to rotate

a. Malfunctioning draw switch. a. Reposition or replace the microswitch.

a. Lubricate properly.

counterclockwise.

3-8

Models C708/C709/C716/C717

Troubleshooting

Page 85

TROUBLESHOOTING

Solenoid Valve Failure Troubleshooting

These hot gas machines were tested to determine symptoms exhibited by the machines when the solenoid valves fail. The following are the test results.

Barrel Hot Gas Solenoid Valve

a. Stuck Closed: b. Stuck Open/Leaking:

Will cause a failure of the heat cycle, heat phase. Will cause a failure of the heat cycle, cool phase. Product in the barrel will not freeze down to temperature, or if frozen at time of malfunction will

cause poor product quality. The initial draw with compressor off will be sloppy. Suction Pressure will be high (about 5 psi [35 kPa] above setting).

Hopper Hot Gas Solenoid Valve

a. Stuck Closed: b. Stuck Open/Leaking:

Will cause a failure of the heat cycle, heat phase. Will cause a failure of the heat cycle, cool phase. Will warm product in the hopper above acceptable level. Pressures: Suction was 30 psi (207 kPa), discharge was 175 psi (1,207 kPa).

Barrel Suction Solenoid Valve

a. Stuck Closed: Compressor Will Fail b. Stuck Open/Leaking:

Product will not freeze properly in Auto mode, and will fail heat cycle. Compressor sump temperature rose to 200°F (93°C) in 30 minutes. Product in barrel will cool while the hopper cools with the beater off. The belt is squealing, and

there is low suction psi. Will not cause a heat cycle failure but will be an issue after long hopper cooling period in

Standby after heat cycle.

Barrel Liquid Solenoid Valve

a. Stuck Closed: Compressor Will Fail

b. Stuck Open/Leaking:

Product will not freezer down in the Auto mode or cool in the Standby mode. Suction pressure was in a vacuum, discharge pressure was 175 psi. The compressor cut out on internal overload in 9 minutes. Will fail the heat cycle in the heat phase. The product will be cold and lumpy, and there will be poor ejection.

Hopper Liquid Solenoid Valve

a. Stuck Closed: b. Stuck Open/Leaking:

Will fail heat cycle, cool phase. Product will not cool in Auto or Standby modes. Will fail the heat cycle in the heat phase. In Auto or Standby modes, the hopper product cools to 32°F (0°C).

Troubleshooting

Models C708/C709/C716/C717

3-9

Page 86

TROUBLESHOOTING

Expected results with metering valves out of adjustment:

AXV:

EPR:

OPR:

Too low will cause lower evaporator and product temperatures. Possible heavy scraping of blades and barrel freeze up.

Too high will cause longer run times, warmer evaporator and product temperatures. Too low will cause hopper product to freeze to the sides. Too high will cause longer run times and could cause the hopper product to be warmer than 40°F (4.4°C). Too low will cause extended heat cycle heat phase times, less efficiency. Too high will cause over amping of the compressor in the heat cycle heat phase and high pressure cut out in the

cool phase. The outlet pressure regulator (OPR) is very sensitive to high ambient conditions. Must be set in the ambient the

machine will run in.

3-10

Models C708/C709/C716/C717

Troubleshooting

Page 87

Bacteria Troubleshooting

TROUBLESHOOTING

Periodic product sampling is taken by a sanitarian. Bacteria counts should not exceed the following figures:

Standard Plate Count (SPC)........ 50,000

Coliform....................................... 10

the operator about how to prevent high bacteria counts.

Note: High bacteria counts in soft serve yogurt is normal and necessary. Coliform, however, cannot be accepted in any product. The following information will help solve high coliform count problems.

If the counts exceed the numbers listed, steps should be taken to locate the cause. Failure to solve the high counts

If sample results indicate a problem, one of these areas may be a source of contamination. (See Table 3-4.)

will result in an unsafe product for consumption. Educate

Table 3-4

Cause Of Contamination Prevention

1. Human contamination. a. Wash hands and arms past elbows.

b. Wear rubber gloves if cuts or skin conditions exist.

c. Wash hands periodically throughout the day.

2. Residue product deposits on mix contact surfaces (milkstone build-up).

3. Worn, damaged, or cracked parts. a. Provide a food-grade lubricant (Example: Taylor Lube).

a. Provide the proper brushes.

b. Brush clean all parts and components thoroughly.

Ignoring this will allow formation of milkstone, a porous substance which will house bacteria and can lead to contamination of fresh mix.

b. Inspect O-rings for holes or tears. O-rings, seals, and

other wear items must be supplied by the freezer company to meet food industry standards.

c. During the operating hours, periodically inspect the rear

drip pan for excessive leakage.

Troubleshooting

Models C708/C709/C716/C717

3-11

Page 88

TROUBLESHOOTING

Cause Of Contamination Prevention

4. Improper cleaning and sanitation procedures. a. For cleaning procedures, scrub the sink and strainers thoroughly before each use. The level of solution in each basin must allow the largest component to be submerged. Sanitize and prime the freezer prior to freezing the product. After sanitizing a freezer, use fresh mix to flush remaining sanitizer from the freezing cylinder.

b. Provide the proper brushes, lubricants, and single service

towels.

c. Store sanitizer in a cool, dry place. Use chemicals

according to their labels.

d. Use a few good employees to follow the cleaning

procedure correctly and consistently. Allow the employee uninterrupted time to complete the cleaning procedure.

e. Hold sanitizing solution in the hopper and the freezing

cylinder for 5 minutes.

f. Wash and sanitize the tube of lubricant; after each use,

always recap the tube.

g. Parts, components, and brushes should be air-dried

overnight. Never store the equipment in the storage cooler.

h. Do not neglect daily cleaning practices: wipe the external

areas of the freezer periodically throughout the day, remove the design caps and sanitize the area, check the drip trays and splash shield.

5. Mix stored improperly. a. Rotate stock to use older date code mix first. Shelf life of mix is normally 10 days.

b. Mix must never be stacked outside or under direct

sunlight while waiting to be placed in the cooler.

c. Place the mix directly in the cooler. Always leave 1 inch

between the mix and other products to allow air to circulate around the product.

d. Mix must not remain at room temperature for long periods

of time.

3-12

e. Hopper storage must maintain a temperature of 39

(3.9

°C). Storage temperatures above 45°F (7.2°C) will

allow cell division in as little as 1 hour.

f. Once the mix is placed in the hopper, covers must be

properly installed to maintain adequate refrigeration and to prevent airborne contaminants from entering the mix.

Models C708/C709/C716/C717

°F

Troubleshooting

Page 89

Section 4:

• Parts Warranty Explanation

• Exploded Views

• Parts Identification

Parts

Models C708/C709/C716/C717

4-1

Page 90

PARTS

Parts Warranty Explanation

Class 103 Parts: The warranty for new equipment parts is one year from the original date of

machine installation, with a replacement parts warranty of 3 months.

Class 212 Parts: The warranty for new equipment parts is two years from the original date of

machine installation, with a replacement parts warranty of 12 months.

Class 512 Parts: The warranty for new equipment parts is five years from the original date of

machine installation, with a replacement parts warranty of 12 months.

Class 000 Parts: Wear Items—no warranty.

Note: Warranty is valid only if the parts are authorized Taylor parts, purchased from an authorized Taylor distributor, and the required service work is provided by an authorized Taylor service technician.

Note: Taylor reserves the right to deny warranty claims on equipment or parts if unapproved parts or refrigerant were installed in the machine, system modifications were performed beyond factory recommendations, or it is determined that the failure was caused by neglect or abuse.

Note: See your authorized Taylor distributor for possible labor warranty.

4-2

Models C708/C709/C716/C717

Parts

Page 91

Model C708 Exploded View

58a

58d

58f

58g

58b

58c

58e

58h

58i

30 49

21a

22a

36a

PARTS

Parts

Figure 4-1

Models C708/C709/C716/C717

4-3

Page 92

PARTS

Model C708 Exploded View Parts Identification

Item Description Part No.

1 Shell A.-Insulated X56969-SER

1a Bearing-Rear Shell 031324

1b Washer-Bearing Lock 012864

1c Nut-Bearing 028991

1d Guide-Drip Seal 028992

2 Coupling-Drive 3/4 Hex 012721

3 Gear A.*Reducer 4.21:1 021286-SER

4 Screw-5/16-18X2-3/4 Hex 004191

5 Motor-Reducer-Service 036955-34S

6 Screw-1/4-20X-3/4 Socket 020128-2

7 Pulley-2AK74-5/8 027822

8 Belt-AX39 023874

9 Motor-1.5 HP Caps 056865-27

10 Pulley-2AK22 X .625-.6265 016403

11 Nut-1/4-20 Flange Lock 017523

12 Clamp-Mounting 012257

13 Bushing-Rubber Mount 012258

14 Screw-1/4-20X5/8 Serrated 017522

15 Screw-5/16-18X7/8 SERR. 017973

16 Hinge A.-Motor X25796

17 Spring-Comp.970X.115X2.00 025707

18 Cap-Rubber Mount 011844

19 Washer-5/16 USS Flat CR3 000651

20 Nut-5/16-18 Flange Nut 017327

21 Kit A.-Valve-OPR X57008-3

21a Strainer-Cone Mesh ⅝ OD 062299

22 Kit A.-Valve-EPR X57009-3

22a Strainer-Cone Mesh ⅝ OD 062299

23 Filter-Air-19.25LX15.50HX.7 052779-16

24 Guide-Filter-Left 056941

25 Guide-Filter-Right 081476

26 Condenser-AC 16X16 3 row 056944

27 Shroud A.-Condenser X81478

Item Description Part No.

28 Ring A.-Air Flow-Cond. X57006

29 Motor-Fan 185W 500302-27

30 Screw-10-32X1/2 Serrated 020982

31 Screw-10-32X3/8 UNSL HWH 039381

32 Accumulator-Copper 047062

33 Switch-Press 220 CO/270 CI 064282

34 Screw-10X3/8 Slotted Hex 015582

35 Dryer-Filter-HP62-3/8 048901

Tube-Capillary (See page 4-44) or

*36

Thermostatic Expansion Valve

36a Strainer-Cone Mesh 1/4 062298

37 KIT-MTG-Compressor X88073

38 Screw-5/16-18X1-1/2 Hex 001894

39 Compressor AWA2480ZXN 081487-27

40 Valve-Access-1/4MFL X 3/8 053565

41 Switch-Pressure 440 PSI 048230

42 Panel A.-Front-Lower X81480

43 Cover-Access-Front-R. 056933

44 Screw-1/4-20X3/8 SLTD 011694

45 Cover-Access-Left 056946

46 Box A.-Cap and Relay See page 4-31

47 Guide-Drip Pan-*SERV* 087637

48 Stud-Nose Cone 055987

49 Nut-10-32 Flange Locknut 020983

50 Panel A.-Front-Upper X59423

51 Switch-Toggle-DPDT 054809

52 Plate A.-DEC See page 4-40

53 Switch A.-Draw See page 4-34

54 Screw-8X1/4 SLTD Hex 009894

55 Control A. See page 4-23

56 Cover-Control Box 056929

57 Blade A.-Agitator X56591

084538

057002

4-4

Models C708/C709/C716/C717

Parts

Page 93

PARTS

Item Description Part No.

58a Cap-Agitator Housing 080827

58b O-ring-1-3/8 OD X .070W 017395

58c Magnet A.-Agitator-Inner 066937

58d Screw-4-40X1/4 Socket 600165

58e Plate-Holding-Agitator 056587

58f Bushing-Agitator Magnet 057342

58g Screw-8-32X3/16 Socket 006812

58h Motor-Agitator-24VAC 050535-03

58i Body-Agitator Housing 056588

59 Probe A.-Mix X56912

60 Spacer-Probe-Mix-Upper 056910

61 O-ring-1-3/8 OD X .070W 017395

62 Spacer-Probe-Mix-Middle 056907

Item Description Part No.

63 Spacer-Mix Probe 056985

64 Clip-Retainer-Mix Pump 044641

65 Pump A.-Mix Simplified S.S. See page 4-37

66 Tube A.-Feed-Hopper S.S. X56521

67 Pin-Retaining-Hopper CVR 043934

68 Kit-Valve Repair 069559-1

69 Screw-10-32X2-1/4 Slot. RD 057610

70 Probe-Mix-Out 056908

71 Nut-10-32 Hex Mach Screw 005598

72 Nut-1/4-20 Finished Hex 000707

73 Valve-TREV 1/4ODFX3/8 W/

Strainer

063951-1

*Not Shown

Parts

Models C708/C709/C716/C717

4-5

Page 94

PARTS

Operator Parts (Model C708)

Figure 4-2

4-6

Models C708/C709/C716/C717

Parts

Page 95

C708 Operator Parts Identification

PARTS

Item Description Part No.

1 Panel-Side-Left 056963

2 Pan-Drip 11-5/8 Long 027503

3 Pin-Retaining-Hopper CVR 043934

4 Kit A.-Cover-Hopper X65368

5 Blade A.-Agitator X56591

6 Pump A.-Mix Simplified S.S. See page 4-37

7 Panel-Rear 056077

8 Pan A.-Drip 5 1/2" Long X56074

9 Screw-1/4-20X3/8 011694

10 Panel A-Side-Right X57871

Item Description Part No.

11 Panel A.-Front-Upper X59423

12 Cover-Access-Front-R. 056933

13 Stud-Nose Cone 055987

14 Screw-10X3/8 Slotted Hex 015582

15 Cover-Access-Left 056946

16 Filter-Air-19.25LX15.50HX.70 052779-16

17 Panel A.-Front-Lower X81480

18 Shelf-Tray-Drip 056076

19 Tray-Drip *Black 056858

20 Shield-Splash *SS 049203

Parts

Models C708/C709/C716/C717

4-7

Page 96

PARTS

56g

56f

56d

56a

56b

56c

56e

56h

56i

125 42

32a

26a

66a

Model C709 Exploded View

4-8

Figure 4-3

Models C708/C709/C716/C717

Parts

Page 97

Model C709 Exploded View Parts Identification

PARTS

Item Description Part No.

1 Shell A.-Insulated X58858-SER

1a Bearing-Rear Shell 031324

1b Washer-Bearing Lock 012864

1c Nut-Bearing 028991

1d Guide-Drip Seal 028992

2 Coupling-Drive 3/4 Hex 012721

3 Gear A.*Reducer 4.21:1 021286-SER

4 Screw-5/16-18X2-3/4 Hex 004191

5 Pulley-2AK74-5/8 027822

6 Belt-AX39 023874

7 Motor-1.5 HP Caps 056865-27

8 Pulley-2AK22 X .625-.6265 016403

9 Nut-1/4-20 Flange Lock 017523

10 Clamp-Mounting 012257

11 Screw-1/4-20X5/8 Serrated 017522

12 Bushing-Rubber Mount 012258

13 Screw-5/16-18X7/8 SERR 017973

14 Hinge A.-Motor X25796

15 Spring-Comp.970X.115X2.00 025707

16 Washer-5/16 USS Flat CR3 000651

17 Nut-5/16-18 Flange Nut 017327

18 Filter-Air-19.25LX15.50HX.70 052779-16

19 Guide-Filter-Left 056941

20 Guide-Filter-Right 081476

21 Condenser-AC 16X16 3 Row 056944

22 Shroud A.-Condenser X56922

23 Ring A.-Air Flow-Cond. X57006

24 Motor-Fan 185W 500302-27

25 Screw-10-32X1/2 Serrated 020982

26 Kit A.-Valve-OPR X57008-3

26a Strainer-Cone Mesh 5/8 OD 062299

27 Kit-Valve Repair 069559-1

28 Accumulator-Copper 047062

Item Description Part No.

29 Switch-Press 220 CO/270 CI 064282

30 Screw-10X3/8 Slotted Hex 015582

31 Dryer-Filter-HP62-3/8 048901

Tube-Capillary (See page 4-44) or

*32

Thermostatic Expansion Valve

32a Strainer-Cone Mesh 1/4 062298

33 Cap-Rubber Mount 011844

34 Kit-Mounting-Compressor X88073

35 Screw-5/16-18X1-3/4 019691

36 Compressor AWA2480ZXN 081487-27

37 Valve-Access-1/4MFL X 3/8 053565

38 Switch-Pressure 440 PSI 048230

39 Panel A.-Front-Lower X81480

40 Screw-1/4-20X3/8 SLTD 011694

41 Cover-Access-Front-R. 056933

42 Nut-10-32 Flange Locknut 020983

43 Cover-Access-Left 056946

44 Box A.-Cap and Relay See page 4-32

45 Guide-Drip Pan-*SERV* 087637

46 Stud-Nose Cone 055987

47 Panel A.-Front-Upper X59423

48 Switch-Toggle-DPDT 054809

49 Plate A.-DEC X58860-SER

50 Screw-8X1/4 SLTD Hex 009894

51 Switch A.-Draw See page 4-34

52 Control A. See page 4-25

53 Cover-Control Box 056929

54 Pin-Retaining-Hopper CVR 043934

55 Blade A.-Agitator X56591

56a Cap-Agitator Housing 080827

56b O-ring-1-3/8 OD X .070W 017395

56c Magnet A.-Agitator-Inner 066937

084538

057002

Parts

Models C708/C709/C716/C717

4-9

Page 98

PARTS

Item Description Part No.

56d Screw-4-40X1/4 Socket 600165

56e Plate-Holding-Agitator 056587

56f Bushing-Agitator Magnet 057342

56g Screw-8-32X3/16 Socket 006812

56h Motor-Agitator-24VAC 050535-03

56i Body-Agitator Housing 056588

57 Probe A.-MIX X56912

58 Spacer-Probe-Mix-Upper 056910

59 Probe-Mix-Out 056908

Item Description Part No.

60 Spacer-Probe-Mix-Middle 056907

61 Spacer-Mix Probe 056985

62 Screw-10-32X2-1/4 Slot RD 057610

63 O-ring-1-3/8 OD X .070 W 017395

64 Nut-10-32 Hex Mach Screw 005598

65 Nut-1/4-20 Finished Hex 000707

66 Kit A.-Valve-EPR X57009-3

66a Strainer-Cone Mesh 5/8 062299

67 Valve-Trev 1/4ODFX3/8 W/

Strainer

063951-1

4-10

Models C708/C709/C716/C717

Parts

Page 99

Operator Parts (Model C709)

PARTS

Parts

Figure 4-4

Models C708/C709/C716/C717

4-11

Page 100

PARTS

C709 Operator Parts Identification

Item Description Part No.

1 Panel-Side-Left 056963-SP1

2 Pin-Retaining-Hopper CVR 043934

3 Blade A.-Agitator X56591

4 Kit A.-Cover-Hopper X65368

5 Orifice 022465-100

6 O-ring-3/8 OD X .070W 016137

7 Tube A.-Feed-SC-Inner-5/32 X32824-2

8 Tube A.-Feed-Outer-HT X34641

9 O-ring-.643 OD X .077W 018572

10 Panel-Rear 056077-SP1

Item Description Part No.

11 Screw-1/4-20X3/8 011694

12 Pan-Drip 11-5/8 Long 027503

13 Panel A-Side-Right X57871

14 Panel A.-Front-Upper X59423

15 Panel A.-Front-Lower X81480

16 Stud-Nose Cone 055987

17 Shelf-Tray-Drip 056076

18 Tray-Drip 056858

19 Shield-Splash 049203

4-12

Models C708/C709/C716/C717

Parts