Using dry nitrogen to pressure test a system is a very effective method of verifying a system is leak-free. In fact, I believe it is more reliable than using a standing vacuum test typically performed ...

For HVAC contractors tired of flying blind on leaky VRF systems, help may finally be on the way: A new Texas-Nebraska partnership promises to arm service techs with AI tools that can sniff out ...

Refrigerants with low global warming potential are more sustainable for the planet, but often more flammable than traditional HFCs. UL Solutions’ Zhongshan laboratory is addressing safety concerns ...