The HVACR industry will soon be using low-GWP refrigerant blends, some of which have a temperature glide when evaporating and condensing. As these refrigerant blends change phase, there’s a change in their composition, which technicians must be able to calculate while in the field.

Understanding what the terms superheat, subcooling, and saturation mean can be helpful when troubleshooting an air conditioning or refrigeration system.

Inexperienced service technicians have a tendency to add refrigerant to a troubled system in order to remedy a problem. Because of this, many systems are operating with an overcharge of refrigerant.

In its recent online summit, the NASRC offered details on common sources of refrigerant leaks and what causes them to occur.

The refrigerant transition has caused concern among HVAC contractors who wonder whether it is safe to work with mildly flammable refrigerants.

So-called natural refrigerants such as CO2 and propane are becoming more popular, due to changing regulations at the state level – and likely the federal level soon.

With the phaseout of HCFC refrigerants and the impending phasedown of HFCs, food retailers are looking at lower-GWP solutions for their refrigeration equipment.

During regular inspections, CARB investigators found that Albertsons failed to comply with the program’s requirements across Albertsons stores between 2016 and 2018.