S41 -- Evaporative Air-Cooling Equipment (SI)

This chapter addresses direct and indirect evaporative equipment, air washers, and their associated equipment used for air cooling, humidification, dehumidification, and air cleaning. Humidification equipment for residential and industrial applications is covered in Chapter 22 of the 2024 ASHRAE Handbook -- HVAC Systems and Equipment. Direct Evaporative Air Coolers Indirect Evaporative Air Coolers Indirect/Direct Combinations Air Washers Humidification/Dehumidification Sound Attenuation Maintenance and Water Treatment VAV Adiabatic Humidification with Heat Recovery Economizer Cold-Climate Adiabatic Humidification