It started with a member’s question: “How do I know if there’s silicone in my A2L press-connect O-ring seals—and why is the EPA warning me about it?” That question sent us down the rabbit hole. What we found buried in the EPA Section 608 training materials is a blanket warning against silicone O-rings in mechanical fittings for A2L refrigerants.
The post Sealing the deal: Why it’s time to revisit the EPA 608 warning on silicone O-rings appeared first on ACCA HVAC Blog.