On the Brink of Change

blower fans for dissipation. He also alerts contractors to expect equipment prices to rise by about 20%, driven by necessary electrical redesigns and safety features, rather than the usual 7% increase in metal costs. “These extra costs reflect the complexity of redesigning indoor and outdoor components to meet new safety labeling and risk-of-fire protocols,” Kimball says.

Kimball stresses that the transition demands new tooling and enhanced training. “We still use recovery machines, vacuum pumps, and leak detection tools like before, but continuing education is key since there isn’t an EPA A2L certification yet,” he says. Contractors must maintain their EPA 608 licenses, but are encouraged to deepen their expertise through ongoing education.

Job site testing is more involved as well, with fire-offs, nitrogen sweep,s and pressure testing becoming part of the normal procedure. “Leaks are even bigger setbacks now due to the flammability concerns,” Kimball warns.

Navigating safety codes and building requirements around A2L refrigerants presents a steep learning curve. Kimball acknowledges this is “a complex topic, highly technical and evolving beyond my core expertise,” but urges contractors to stay informed. Mechanical room ventilation, refrigerant alarm systems, and compliance with new truck refrigerant load limits (maximum 225 pounds per vehicle) are among the heightened safety protocols.

New storage rules are coming as well. Cylinders containing A2L refrigerants must be kept outside offices and shops, and record-keeping thresholds will be lowered from 50 pounds to 15 pounds starting in 2028. “Updated labeling and safety protocols will be necessary across all equipment,” he says.

For customers, Kimball addressed the changes in a blog post on his website, explaining what the shift means, how costs may differ, and what customers can do based on the types of existing systems they have. Transparency keeps communication lines open with customers and helps to answer any questions or concerns they have, he says.

transitions.