The largest moisture load in many
commercial and industrial buildings
is directly related to outdoor air.
Fresh air must be brought into buildings
to maintain proper indoor air quality.
Building codes require large quantities
of outside air to promote healthy
indoor air quality.
This air can bring with it large quantities
of water vapor, which can be difficult
to control using conventional cooling-based
equipment. The function of a dedicated
outdoor air unit is to reduce the
humidity before it enters the space.
