Lawyer writing new regulations

Refrigerant Regulatory Updates

The EPA has made some refrigeration regulation updates.Final Rule – Phasedown of Hydrofluorocarbons: Restrictions on the Use of Certain Hydrofluorocarbons under Subsection (i) of the American Innovation and Manufacturing Act of 2020.

As we move forward in this everchanging refrigerant regulation frontier, I want to keep you aware of the changes on the regulatory front regarding the American Innovation and Manufacturing (AIM) Act and how it affects our future equipment designs and planning. The EPA has made some refrigeration regulation updates. Check them out below!

This Final Rule was signed on October 5, 2023 restricting the use of higher GWP HFC’s in new refrigeration, air conditioning, and heat pump products and equipment. We have consolidated the subsections that will affect the products Century Refrigeration could currently manufacture for these industry segments. View full list on the EPA website.

Refrigerant regulations are changing. Here’s how Century is moving forward with these new changes!

As you can see, the majority of subsectors we would be involved in have an “Installation Compliance Date” of January 1, 2026 requiring the use of refrigerants with GWP limits of 300 and 150 depending on the subsector. To this end, Century is currently working to provide equipment designed and rated for R-454c in Q1 of 2024. R-454c has a GWP of 148 so it fits as a regulatory solution for our products.

However, there are refrigerant circuit charge limitations and system safety requirements for the A2L refrigerants based on the room size. Currently, there are two different regulations in play regarding the A2L charge limits. UL 60335-2-89, 2nd Edition has maximum allowable refrigerant charge will be 167 pounds per refrigerant circuit and can be less for smaller room applications or 88 pounds of refrigerant per circuit depending on the location of the system components. This will also require leak monitoring, ventilation capabilities for the conditioned spaces and possibly shut-off valve requirements for the systems. The other standard is ANSI/ASHRAE Standard 15-2022. This standard looks to have higher circuit charge limitations and different safety design requirements than the UL Standard.

We believe the ANSI/ASHRAE Standard will be the overriding standard for Century applications. To be certain of this we are working with an industry testing agency to get clarification on the specific requirements for our system designs with R-454c refrigerant. We want to be certain we meet all the regulatory constraints.

Century Refrigeration is also working to have a natural refrigerant equipment system solution by 2025. This will accommodate the regulation requirements before the January 1, 2026 “Installation Compliance Date”. Hopefully, you provided your thoughts on the Natural Refrigerant Questionnaire sent out previously.

We will provide updates on this information as we get the details determined.