How do the thermodynamic properties of R-410A differ from those of R-22, and what are the implications for HVAC system design?

R-410A has a higher latent heat of vaporization and a lower boiling point than R-22, making it a more efficient refrigerant for air conditioning applications. However, R-410A also has a higher pressure ratio, which requires more powerful compressors and stronger system components. As a result, HVAC systems designed for R-410A must be built to withstand higher operating pressures, and may require additional safety features and controls.