Portfolio Booklet Revised - Flipbook - Page 22
58
HVAC Diagram
A Variable Air Volume (VAV) System is an HVAC solution designed to
regulate airflow to different building zones based on specific heating or
cooling needs, ensuring efficient and customizable climate control.
Unlike constant air volume (CAV) systems that deliver a fixed airflow, VAV
systems vary the airflow while maintaining a consistent supply air
temperature, typically through a central Air Handling Unit (AHU). The
AHU conditions and distributes air via ductwork to VAV terminal units in
each zone, which adjust airflow using dampers controlled by zone-specific
thermostats. These systems can include features like reheat coils for
additional heating or fan powered terminal units to enhance air
recirculation. Common configurations include single-duct, dual-duct, and
fan powered VAV systems, offering flexibility for different building
requirements. VAV systems provide numerous advantages, including
energy efficiency, precise zonal control, scalability, and reduced operating
cost. However, they can involve higher initial costs, increased complexity,
and potential noise issues if not designed correctly. VAV systems are a
reliable and efficient choice for most modern buildings.
