Basic Documentation

Table Of Contents
Glossary
variable-air-volume (VAV)
Ventilation system that changes the amount of air supplied to and exhausted from the rooms
served. The specific quantities of air supplied to various rooms is automatically adjusted to
accommodate heating, cooling, or ventilation needs of the zone at a given point in time. See
constant-air-volume.
velocity pressure
Difference between the total pressure and static pressure of an air stream that is moving in a duct.
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