Safe Handling of Refrigerants Course

Lesson 1 • Overview of the Refrigeration Cycle

Traces refrigerant flow through compressor, condenser, expansion device, and evaporator. Provides system context that underpins all practical handling and service tasks.

Lesson 2 • Introduction to Refrigerant Chemistry

Covers molecular structure, chemical families, and naming conventions of common refrigerants. Establishes the chemical baseline needed for all subsequent safety and handling topics.

Lesson 3 • Environmental Impact of Refrigerants

Examines ozone depletion potential, global warming potential, and atmospheric lifetime of refrigerant families. Connects environmental metrics to phase-down regulations and fluid selection.

Lesson 4 • Refrigerant Classification Systems

Presents safety group classifications based on toxicity and flammability. Students apply classification knowledge to select appropriate handling precautions.

Lesson 1 • Workplace Health and Safety Legislation

Addresses occupational exposure limits, hazard communication standards, and employer duties for refrigerant work. Links legal obligations to safe work practices covered later.

Lesson 2 • National and Regional Regulations

Covers functional requirements of national refrigerant regulations including certification, record-keeping, and emission limits. Students map regulatory duties to job roles.

Lesson 3 • Certification and Licensing Pathways

Outlines competency-based certification schemes for handling different refrigerant categories. Students identify the credentials required for their specific work scope.

Lesson 4 • International Environmental Agreements

Reviews global treaties controlling ozone-depleting and high-GWP substances. Provides the policy context that drives national regulations and industry phase-outs.

Lesson 1 • Confined Space and Ventilation Hazards

Addresses refrigerant accumulation in low-lying or enclosed areas and ventilation design requirements. Prepares students to assess and control atmospheric hazards on-site.

Lesson 2 • Formal Risk Assessment Methods

Applies structured risk assessment techniques to refrigerant tasks including charging, recovery, and leak testing. Outputs feed directly into safe work method statements.

Lesson 3 • Safety Data Sheet Interpretation

Teaches systematic reading of safety data sheets for refrigerant products. Students extract first-aid, storage, and emergency response data for field use.

Lesson 4 • Physical and Chemical Hazards

Identifies pressure hazards, asphyxiation risks, flammability, and reactivity of refrigerant fluids. Understanding these hazards is the prerequisite for all risk control decisions.

Lesson 1 • Hand, Eye, and Body Protection

Specifies glove materials, face shields, and protective clothing for cryogenic and pressure hazards. Proper selection prevents frostbite and chemical splash injuries.

Lesson 2 • Respiratory Protection for Refrigerant Work

Covers respirator types, filter selection, and fit-testing requirements for refrigerant atmospheres. Correct respirator choice prevents inhalation injuries during service tasks.

Lesson 3 • Refrigerant Leak Detection Instruments

Introduces electronic, UV dye, and ultrasonic leak detectors and their operating principles. Instrument selection depends on refrigerant type and detection sensitivity needed.

Lesson 4 • Gas Detection and Alarm Systems

Covers fixed and portable gas detection systems, alarm setpoints, and response protocols. Integrated detection systems provide early warning before hazardous concentrations build.

Lesson 1 • Inventory Management and Stock Rotation

Establishes refrigerant inventory tracking, first-in-first-out rotation, and cylinder return procedures. Accurate inventory supports regulatory reporting and prevents expired stock use.

Lesson 2 • Transport Regulations and Documentation

Addresses dangerous goods classification, packaging, marking, and transport documentation for refrigerants. Compliance with transport rules is compulsory for road, air, and sea shipments.

Lesson 3 • Cylinder Handling and Movement

Covers manual handling techniques, trolley use, and valve protection during cylinder movement. Improper handling causes valve damage, drops, and uncontrolled releases.

Lesson 4 • Storage Facility Requirements

Specifies ventilation, temperature control, segregation, and security requirements for refrigerant stores. Compliant storage prevents leaks, fires, and unauthorised access.

Lesson 1 • Refrigerant Reclaim and Destruction

Distinguishes reclaim from recycling and outlines certified reclaim facility requirements. Contaminated or banned refrigerants must be sent for certified reclaim or destruction.

Lesson 2 • Recovery Procedures for Different System Types

Adapts recovery techniques for vapour-only, liquid, and mixed-phase recovery from various system configurations. System type determines the recovery method and equipment settings.

Lesson 3 • On-Site Refrigerant Recycling

Explains oil separation, moisture removal, and filtration steps in field recycling units. Recycled refrigerant may be reused in the same system after meeting purity criteria.

Lesson 4 • Recovered Refrigerant Storage and Labelling

Covers labelling, segregation, and storage of recovered refrigerant pending analysis or disposal. Proper labelling prevents cross-contamination and supports chain-of-custody records.

Lesson 1 • Manifold Gauge Set and Hose Management

Covers manifold gauge set components, hose ratings, and connection procedures for service ports. Correct manifold use prevents cross-contamination and refrigerant loss during service.

Lesson 2 • System Evacuation and Dehydration

Explains vacuum pump operation, micron gauge use, and triple evacuation technique to remove moisture and non-condensables. Inadequate evacuation causes acid formation and compressor failure.

Lesson 3 • Commissioning Checks and Handover

Defines pre-startup checks, performance verification, and documentation required at system commissioning. Thorough commissioning confirms safe operation before handover to the end user.

Lesson 4 • Leak Testing Methods and Standards

Applies nitrogen pressure testing, electronic detection, and bubble solution methods to verify system integrity. Leak testing must be completed before any refrigerant is introduced.

Lesson 1 • Responding to Refrigerant Leaks

Provides step-by-step procedures for isolating, ventilating, and containing refrigerant releases. Rapid isolation limits exposure and prevents escalation to fire or explosion.

Lesson 2 • Emergency Response Planning

Covers site-specific emergency response plan development, roles, and communication protocols. A documented plan ensures coordinated action before an incident occurs.

Lesson 3 • Fire and Explosion Response

Addresses flammable refrigerant ignition scenarios, extinguisher selection, and evacuation triggers. Technicians must recognise when to fight a fire and when to evacuate immediately.

Lesson 4 • First Aid for Refrigerant Exposure

Details first-aid protocols for inhalation, frostbite, and eye or skin contact with refrigerants. Immediate correct first aid reduces injury severity before medical help arrives.