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A2L Refrigerants Introduction

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A2L Refrigerants Introduction

Included with

Gain insight into a topic and learn the fundamentals.
Beginner level

Recommended experience

2 hours to complete
Flexible schedule
Learn at your own pace
Gain insight into a topic and learn the fundamentals.
Beginner level

Recommended experience

2 hours to complete
Flexible schedule
Learn at your own pace

What you'll learn

  • Identify the unique features of A2L refrigerants, specifically their low flammability and low toxicity levels.

  • Select and utilize the commonly used tools and equipment designed for A2L handling and maintenance.

  • Implement best practices for the safe transportation, storage, and handling of A2L materials in any professional setting.

Details to know

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Recently updated!

June 2026

Assessments

10 assignments

Taught in English

Build your subject-matter expertise

This course is part of the HVAC: Preparing for the Field Specialization
When you enroll in this course, you'll also be enrolled in this Specialization.
  • Learn new concepts from industry experts
  • Gain a foundational understanding of a subject or tool
  • Develop job-relevant skills with hands-on projects
  • Earn a shareable career certificate

There are 7 modules in this course

As the HVAC industry shifts toward more sustainable solutions, staying current with new refrigerant classifications is vital for safety and compliance. This course introduces you to A2L refrigerants, an increasingly popular choice known for their specific environmental and chemical profiles. You will move beyond the basics to master the specialized tools, equipment, and handling protocols required to work with these mildly flammable substances.

By completing this course, you will gain a comprehensive understanding of emergency procedures and preventative maintenance, positioning yourself as a responsible, tech-forward professional in an evolving trade.

This module provides a detailed technical guide on the thermal joining of copper tubing through soldering and brazing techniques.The content emphasizes best practices for cleanliness and heat control to ensure structural integrity and prevent leaks in high-pressure refrigeration systems.

What's included

2 videos1 assignment

2 videos•Total 11 minutes
  • A2L Refrigerant Overview•5 minutes
  • International Code Regulations•6 minutes
1 assignment•Total 5 minutes
  • Knowledge Check: International Code Regulations•5 minutes

This module provides a step-by-step instructional guide on creating high-quality flare joints in copper tubing. It covers the mechanical process of using a flaring tool to expand the end of a tube, allowing it to be secured by a flare nut against a brass fitting. The content highlights critical quality control measures, such as proper tube height in the block and the use of oil to prevent friction damage during the flaring process.

What's included

1 video1 assignment

1 video•Total 11 minutes
  • Characteristics of A2L Refrigerants•11 minutes
1 assignment•Total 7 minutes
  • Knowledge Check: Characteristics of A2L Refrigerants•7 minutes

This module examines the evolution of refrigerant chemistry and the industry-wide transition toward environmentally sustainable solutions. The content also addresses the emergence of A2L refrigerants, focusing on their reduced environmental footprint and their role in the future of the HVACR industry.

What's included

2 videos2 assignments

2 videos•Total 9 minutes
  • A2L-Compliant Tools: Part 1•5 minutes
  • A2L-Compliant Tools: Part 2•4 minutes
2 assignments•Total 8 minutes
  • Knowledge Check: A2L-Compliant Tools: Part 1•4 minutes
  • Knowledge Check: A2L-Compliant Tools: Part 2•4 minutes

This module provides a comprehensive technical deep-dive into the safety protocols and legal requirements for managing A2L refrigerants. The content covers the establishment of safe work zones, including the recommended 10-foot radius and the use of Class B fire extinguishers. Additionally, it details critical site-specific safety measures for the transportation and bulk storage of mildly flammable gases.

What's included

3 videos3 assignments

3 videos•Total 19 minutes
  • Safe Handling, Transport, and Storage: Part 1•6 minutes
  • Safe Handling, Transport, and Storage: Part 2•6 minutes
  • Safe Handling, Transport, and Storage: Part 3•7 minutes
3 assignments•Total 21 minutes
  • Knowledge Check: Safe Handling, Transport, and Storage: Part 1•7 minutes
  • Knowledge Check: Safe Handling, Transport, and Storage: Part 2•7 minutes
  • Knowledge Check: Safe Handling, Transport, and Storage: Part 3•7 minutes

This module introduces essential preventative maintenance measures and regulatory compliance standards for working with A2L refrigerants. It details routine inspection protocols, such as verifying cylinder labels and fire extinguisher status, and emphasizes the installation of advanced leak detection systems.

What's included

1 video1 assignment

1 video•Total 4 minutes
  • Preventive Maintenance•4 minutes
1 assignment•Total 4 minutes
  • Knowledge Check: Preventive Maintenance•4 minutes

This module outlines critical emergency response procedures and first aid protocols for handling A2L refrigerants. It emphasizes the importance of consulting the Safety Data Sheet (SDS) to understand specific chemical hazards, such as those associated with R-454B, including frostbite and respiratory risks.

What's included

1 video1 assignment

1 video•Total 6 minutes
  • Emergency Response•6 minutes
1 assignment•Total 7 minutes
  • Knowledge Check: Emergency Response•7 minutes

This final knowledge check is designed to reinforce key concepts from the lesson and assess your understanding. You’ll apply what you’ve learned through a series of multiple choice questions, helping ensure you’re confident and ready to move forward.

What's included

1 assignment

1 assignment•Total 25 minutes
  • Final Knowledge Check•25 minutes

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Instructor

Interplay Learning
23 Courses•650 learners

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