desmon GBF-15 Service Manual

desmon GBF-15 Service Manual

Blast chiller
Table of Contents

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Service Manual
Blast Chiller

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Table of Contents
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Summarization of Contents

Safety Precautions
General Safety Warnings
Covers critical safety instructions including electrical, installation, and general handling precautions.
Electrical LOCKOUT/TAGOUT Procedure
Procedure for safely disconnecting and tagging electrical circuits before service.
Repair Work Safety
Ensures repair work is performed by authorized personnel to prevent hazards.
Service Diagnostics
Standard Controller Diagnostics
Alarms, failure codes, service menu, and parameters for standard controllers.
Standard Controller Parameters
Details on accessing and modifying unit configuration settings for standard controllers.
Touch Screen Controller Diagnostics
Alarms, failure codes, service menu, and parameters for touch screen controllers.
Touch Screen Controller Parameters
Guide to accessing and adjusting settings on the touch screen controller.
HACCP Printer Functions
How to print alarm lists and cycle data using the HACCP printer.
Troubleshooting
Probe Issues
Information and troubleshooting for temperature sensing probes.
Switch and Heater Issues
Diagnosing and replacing door switches, pressure switches, and door frame heaters.
Board, Keypad, and Display Issues
Troubleshooting main boards, keypads, and touch screen displays.
Refrigerant Pressure Checks
Guidance on checking refrigerant pressures and related factors.
Service and Repair Procedures
Panel and Door Access
Procedures for removing front panels and reversing door swings.
Condensing and Evaporator Assembly Access
Steps to access the condensing unit and evaporator assembly.
Component Replacement
Detailed steps for replacing fans, probes, switches, heaters, boards, and keypads.
Vacuum and Charge Procedure
Steps for performing vacuum and charging procedures for refrigeration systems.
Schematics and Specifications
Schematics
Diagram illustrating the main components of the refrigeration system.
Airflow Requirements
Required clearances for proper airflow around units and condenser boxes.
Model Number and Data Chart
Guide to understanding model numbers and technical specifications.

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