Explore how refrigerant chemistry, heavier-than-air gases, and real-world brazing hazards highlight critical safety practices for HVAC and mechanical contractor.
We become comfortable with what we perceive to be best practices and believe they are also safe for all involved. Cupric oxide will always be a concern when brazing copper refrigerant line sets, so purging with nitrogen is the best way to keep your refrigerant lines clean and pristine during brazing.
In a here-we-go-again move, we must now transition from HFC to A2L mildly flammable refrigerants. The good news is the operating pressures are virtually the same and this time, the refrigerant oil is the same.
“Healthy Buildings: Designing For Life” announced as new Society theme during Annual Conference in Phoenix.
June 23, 2025
ASHRAE welcomed its 2025–26 Society president, officers, and directors at its Annual Conference in Phoenix. Incoming president Bill McQuade’s theme emphasizes indoor environmental quality as a cornerstone of sustainable, human-centered design.
ASHRAE honors top contributors in HVAC&R and building sciences at 2025 Annual Conference, highlighting achievements in sustainability, innovation, technical leadership and volunteer service.
June 23, 2025
From cutting-edge research to industry-wide impact, ASHRAE celebrated the exceptional achievements of its members during the 2025 Annual Conference in Phoenix. Discover this year’s honorees and the groundbreaking work advancing HVAC&R and the built environment.