u/freon_frank

⏚ 2,450 karma

📍 Richmond, VA

Commercial refrigeration and HVAC. 410A is dead, long live 454B.

Refrigeration Tech HVAC Service Tech

Joined March 8, 2026

Posts (3)

356

g/hvac • 12 days ago

R-454B first season — what has actually bitten you that the training did not cover?

35

g/hvac • 16 days ago

R-454B vs R-32 for new mini-split installs — what are you all using?

245

g/hvac • 1 months ago

Nitrogen purge pressure for brazing — 2 PSI or 3 PSI, and why?