The October 2020 issue of Engineered Systems features: taking sustainability into the space age, choosing the right dehumidification technology, reducing the probability of COVID-19 transmission in buildings, and much more!
When replacing R-410A, engineers should consider commercially available, single-component, or azeotrope refrigerants that meet AHRI Standard 700 with zero ODP and a maximum 750 GWP.
The existing central air system with eight terminal reheat coils shall provide space temperature and humidity control to maintain 40%-60% relative humidity within each room while maintaining 68°F in the heating season, 74° in the cooling season, and space pressure maintained at 0.05-inch gage positive pressure.