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This refrigerant safety bundle includes the ESCO Institute's Low GWP Refrigerant Safety: Flammable & Mildly Flammable Refrigerants Manual and the A3 Refrigerant Safety: Hydrocarbon Refrigerant Safety manual.
Book Descriptions:
Low GWP Refrigerant Safety: Flammable & Mildly Flammable Refrigerants Manual
The EPA began the phasedown of HFC refrigerants, including R-410A, on January 1, 2022. As a result, the HVACR industry is transitioning to Low GWP Refrigerants including R-32, R-454B, and equipment that runs on them. HVACR professionals need to know the codes and standards for safe handling, storage, and transportation of these mildly flammable refrigerants (A2L).
Did You Know?
* A2L cylinders will be equipped with a spring-loaded pressure relief valve instead of a rupture disc.
* * A2L cylinders will be color-coded red.
* * Most A2L equipment will require refrigerant detection systems.
* There are new National Fire Protection Association (NFPA) fire safety storage requirements for Low GWP Refrigerants.
These are some of the things you NEED TO KNOW to work on new equipment!
Training Manual © 2022 ESCO 90 Pages
Refrigerant safety
Introduction to Low GWP refrigerants
Refrigerant properties and characteristics
The refrigeration cycle
Working with refrigerant blends
Proper installation and service guidelines
Flammable refrigerant considerations
Explanation of the associated codes and standards for A2L refrigerants
Click here to view a sample of this book.
Registered Proctors can review a digital version of the manual by logging in and visiting the resource center.
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.
This book was developed by the ESCO Institute to serve as both an instructional resource and a field reference for working with A3 hydrocarbon refrigerants such as propane (R-290) and isobutane (R-600a). It combines essential background knowledge with step-by-step safety practices, guided by the latest codes, standards, and regulatory requirements.
Technicians using this manual will gain:
A clear understanding of hydrocarbon refrigerant properties, environmental considerations, and system applications.
Knowledge of the governing codes and standards that define safe installation, servicing, transportation, and storage.
Practical field procedures designed to minimize hazards and ensure compliance with best practices.
Tools such as pressure–temperature charts and sample safety data sheets to support daily service activities.
Whether used in the classroom or on the job, this book and its accompanying certification are intended to protect technicians, customers, and the environment, while supporting a successful transition to next-generation refrigerants.
Click here to view a sample of this book.
Registered Proctors can review a digital version of the manual by logging in and visiting the resource center.
