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Carrier C708 User Manual

Carrier C708
148 pages
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Models C708/C709/C716/C717
Heat Treatment
Soft Serve Freezers
Service Manual
059061-S
6/15/05

Table of Contents

Questions and Answers:

Carrier C708 Specifications

General IconGeneral
BrandCarrier
ModelC708
CategoryFreezer
LanguageEnglish

Summary

Section 1: Introduction

Safety

Information regarding safety features and precautions for operators and service technicians.

Refrigerant

Details about the R404A refrigerant used, handling precautions, and EU directive compliance.

Specifications

Detailed specifications for models C708, C709, C716, and C717, including dimensions and electrical.

General Installation Instructions

General guidelines for installing the freezer, including disconnect switches and air clearance.

Running Specifications

Recommended operating pressures and temperatures for the freezer components.

Important to the Operator

Overview of operator controls, indicators, and symbols used on the machine.

Section 2: Controls, Systems and Operations

Universal Control Programming

Explanation of the control system's operating screens, initialization, and data handling.

Heat Treatment Cycle

Description of the heat treatment cycle's function, phases (Heat, Hold, Cool), and lock-out conditions.

Heat Treatment Graph

Visual representation of the heat treatment cycle phases and timing requirements.

Freezer Lock-out

Information on hard lock and soft lock conditions, their causes, and resolution.

Power Interrupt

Details on how the machine recovers from power failures and brush clean requirements.

Pump Operation

Explanation of the mix pump's operation, including pump key and draw timer.

Timers

Description of various timers used in the machine's operation, such as stir, pump, and safety timers.

Jumper Pins - UVC3

Explanation of jumper pin functions for different configurations and interface board jumpers.

Beater Stir Cycles

Description of beater motor operation in STANDBY and HEAT modes.

Setting Viscosity

Guidance on adjusting soft serve viscosity by monitoring beater motor amperage.

Control Overview

Diagrams illustrating the control systems for C708/C709 and C716/C717 models.

Refrigeration System - Hot Gas Treatment

Explanation of the refrigeration system's components and hot gas treatment process.

Checking and Setting Refrigeration Valves

Step-by-step procedures for checking and setting refrigeration valves and system pressures.

Refrigeration Schematic

Diagram illustrating the refrigeration system layout, components, and pressures.

Refrigeration System Components

List and descriptions of the various components within the refrigeration system.

Section 3: Troubleshooting

General Troubleshooting Guide

A table listing common problems, their causes, and suggested remedies.

Electrical Troubleshooting Guide

Table showing component operation across different modes (HEAT, STANDBY, WASH, AUTO, PUMP).

Pump Style Freezer Troubleshooting

Specific troubleshooting steps for issues related to the air/mix pump operation.

Solenoid Valve Failure Troubleshooting

Symptoms and results of solenoid valve failures in hot gas units.

Bacteria Troubleshooting

Information on bacteria counts, causes of contamination, and prevention methods.

Section 4: Parts

Parts Warranty Explanation

Details on warranty periods for different classes of parts and warranty conditions.

Parts Identification

Exploded views and part identification lists for models C708, C709, C716, and C717.

Parts List

Comprehensive list of all available parts with part numbers, quantities, and class information.

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