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Stoelting O231 User Manual

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Model O231
SERVICE MANUAL
Manual No. 513646 Sept. 2010

Table of Contents

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Stoelting O231 Specifications

General IconGeneral
BrandStoelting
ModelO231
CategoryBeverage Dispenser
LanguageEnglish

Summary

Safety Information and Symbols

Safety Alert Symbol

Explains the purpose and meaning of the safety alert symbol used in the manual.

Signal Word Definitions

Defines signal words like WARNING and CAUTION used to alert readers to hazards.

Installation Instructions

2.1 Safety Precautions

Outlines crucial safety precautions to be followed before and during installation.

2.4 Permanent Wiring Installation

Instructs on connecting permanent electrical wiring according to local codes and machine requirements.

Initial Set-Up and Operation

3.1 Operator Safety Precautions

Lists essential safety rules for operators to ensure safe machine operation.

IntelliTec2 Controls and Mix Information

IntelliTec2 Touchpad Functions

Details the functions of the Main Power, Help, SEL, SET, On/Off, Push to Freeze, Clean, and Arrow buttons.

Cleaning and Sanitizing Importance

Emphasizes the importance of cleaning and sanitizing for food safety and machine maintenance.

Cleaning and Sanitizing Procedures

Cleaning vs. Sanitizing Distinction

Differentiates between cleaning and sanitizing and their roles in food safety and maintenance.

Machine Disassembly and Part Cleaning

3.4 Machine Parts Disassembly

Provides step-by-step instructions for disassembling machine parts, including front door and auger.

3.5 Cleaning Disassembled Parts

Outlines procedures for cleaning and sanitizing disassembled machine parts.

Sanitizing, Assembly, and Lubrication

3.6 Sanitizing Machine Parts

Details the procedure for sanitizing disassembled machine parts using a sanitizing solution.

3.8 Machine Assembly

Guides the user through the process of reassembling the machine parts after cleaning.

Sanitizing and Freeze Down Operations

3.9 Machine Sanitizing Procedure

Explains the correct procedure for sanitizing the machine before use.

3.10 Freeze Down and Operation

Guides on filling the hopper, initiating freezing, and dispensing product.

Maintenance and Control Settings

4.1 Accessing Control Readings

Explains how to access machine settings and readings via keypad sequences for different user levels.

4.2 Navigation and Modifying Settings

Details how to navigate menus and modify settings using the IntelliTec2 touchpad.

Performance and Settings Screens

4.5 Settings Screens

Details accessing and modifying basic, advanced, and storage settings.

Advanced and Storage Settings

Advanced Settings Configuration

Covers settings related to standby, sleep modes, and cycle times for technicians.

Storage Settings Configuration

Details parameters for the storage refrigeration cycle, including cut-in, cut-out, and offset.

User Preferences and Utilities

4.6 Utilities Screens

Explains access to testing, manual operation, factory defaults, LCD contrast, and logs.

System Testing and Maintenance Utilities

Testing and Manual Operation

Provides access for testing individual components and monitoring machine status during tests.

Machine Statistics and Data Export

4.7 Errors & Statistics Screens

Provides access to machine statistics and error history for technicians.

Firmware Update and Belt Tension Adjustment

4.8 Updating Firmware

Guides on updating the IntelliTec2 control firmware using a USB flash drive.

4.9 Drive Belt Tension Adjustment

Details how to check and adjust the drive belt tension for optimal performance.

Condenser Cleaning, Maintenance, and Storage

4.10 Condenser Cleaning Procedures

Provides instructions for cleaning air-cooled and water-cooled condensers.

Refrigeration System Overview

5.1 Refrigeration System Description

Describes the three separate refrigeration systems within the O231 model.

5.2 Refrigerant Recovery and Evacuation

Details procedures for safely recovering and evacuating refrigerant from the system.

Refrigerant Charging Procedures

5.3 Refrigerant Charging

Provides instructions for properly charging the refrigeration system with liquid refrigerant.

Compressor Service Procedures

5.4 Compressor Winding Test

Explains how to test the compressor motor windings for potential problems.

Compressor Removal

Guides on removing a compressor from the machine.

Compressor Installation and Condenser Service

Compressor Installation

Guides on installing a new compressor, including mounts, lines, and wiring.

Refrigerant Flow Control Valves

5.6 Valves - TXV

Explains the function of the TXV in metering refrigerant to the evaporator.

TXV Testing and Adjustment

Details how to test and adjust the TXV for proper operation.

Valves and Pressure Control Devices

Automatic Expansion Valve (AXV)

Describes the AXV used in YG2 models for metering refrigerant.

High Pressure Cutout Function

Details the function of high pressure cutouts for protecting the compressor.

Pressure Controls and Refrigerant Regulators

High Pressure Cutout Testing

Provides steps to test the high pressure cutout's functionality.

Pressure Regulators and Water Valves

Water Valve and Solenoid Service

Solenoid and Filter Drier Service

Electrical and Mechanical Control Systems

Contactor and Drive Motor Service

Drive Motor, Capacitor, and Gearbox Service

Gearbox and Condenser Fan Motor Service

Condenser Fan Motor and Spigot Switch Service

Spigot Switch and Temperature Sensor

Troubleshooting Error Codes

7.1 Error Codes List

Lists common error codes displayed on the control panel and their meanings.

Troubleshooting Specific Errors

Troubleshooting Machine Issues

Common Machine Operation Issues

Lists causes and remedies for machine not running, not shutting off, or dispensing problems.

Internal Components List

Internal Components List (Continued)

Electrical Wiring Diagrams

8.7 Wiring Diagrams

Presents the electrical wiring diagrams for the machine.

Electrical Wiring Diagrams (Continued)

Wiring Diagrams (Continued)

Continues the electrical wiring diagrams for the machine.

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