Which refrigerant is commonly used in modern HVAC systems?

R-410A is commonly used in modern HVAC systems due to its efficiency and environmental compatibility. It is a hydrofluorocarbon (HFC) refrigerant that was specifically developed to replace R-22, which is being phased out due to its ozone-depleting properties. R-410A operates at higher pressures than R-22, which allows for improved cooling performance and energy efficiency in residential and commercial air conditioning systems.

Additionally, R-410A does not contain chlorine, making it more environmentally friendly and acceptable under the regulations aimed at protecting the ozone layer. Its use has become widespread in new installations, aligning with contemporary standards for energy efficiency and sustainability in HVAC practices. Understanding the phase-out of older refrigerants like R-22 is essential for professionals in the HVAC industry, as it underscores the importance of adapting to new technologies and regulations.