Started seeing 454B condensers come through this week, and our inspector is actually checking A2L labels and leak-check notes; one small thing that helped was bumping my gas detector with a pocket test can before pressurizing, which saved me from chasing a ghost leak caused by a sleepy sensor. Anyone else getting grief about using legacy recovery machines on these?
Yes - our inspector wouldn’t accept the old recovery rig until we showed an A2L listing, so we switched to a 454B/R32‑rated machine and swapped in low‑perm hoses. If your legacy unit has a manufacturer bulletin allowing A2L use, print it and keep it with the machine; that paperwork saved us from a re‑inspection.
Same here — our inspector wouldn’t let the old recovery rig roll without an A2L mark, ugh. I zip‑tied the 454B/R32 rating sheet to the machine, swapped to low‑perm hoses, and do a quick bump on the sniffer with a pocket test can before pressurizing like you said. Anyone else getting dinged on vac pumps or are they just focused on recovery?
I keep a small battery fan on the floor while recovering or charging so any seepage doesn’t sit low — cheap insurance and our inspector notes it. You bump your sniffer; do you jot it on the job sheet so the check goes quicker next time? That little bit of documentation seems to smooth things out.