A3 Refrigerants: Hydrocarbon Refrigerant Safety

The safe use of refrigerants is one of the most critical responsibilities of today’s HVACR technicians. As our industry transitions away from high-GWP refrigerants toward more sustainable alternatives, hydrocarbon refrigerants, classified as A3 refrigerants, are being reintroduced into a wide range of residential and commercial applications. While these refrigerants offer clear environmental advantages, their high flammability demands specialized training, awareness, and procedures.

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Training Manual

The A3 Refrigerants: Hydrocarbon Refrigerant Safety Manual Covers:

Introduction to Hydrocarbons (HCs)
Standards and Codes for Hydrocarbon Refrigerants
A3 System Field Procedures

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Registered Proctors can review a digital version of the manual by logging in and visiting the Resource Center.

Instructor Resources

PowerPoint presentation: The instructor resource materials include a PowerPoint presentation, 55 slides in all, that correlate directly with the training manual. Each slide within the presentation contains speaker notes that are designed to aid the instructor through the presentation and provide additional talking points.

ESCO proctors should login to purchase the downloadable Instructor Resources. (Once logged in, goto shop and click on “Purchase Digital Media.”)

Certification

The A3 Refrigerants: Hydrocarbon Refrigerant Safety examination validates that a person possesses the knowledge to safely work with A3 refrigerants and helps reduce liability. The 50-question, closed-book exam covers the following competencies:

General Flammable Refrigerant Safety Knowledge
Core ACR Knowledge
Flammable System Service Safety
Flammable System Installation Safety
Flammable Refrigerant Transportation and Handling Safety

A3 Refrigerants: Hydrocarbon Refrigerant Safety