Titus HVAC DESV-04 4" NO Control Digital VAV

The Titus HVAC DESV-04 NO Control Digital is a variable air volume unit used to regulate airflow delivered to a single zone based on control system demand. It adjusts air passage through an internal damper mechanism in response to digital control signals manage supply air volume within ducted distribution networks. The 4" inlet size supports connection to standard duct layouts, while the NO configuration defines its default airflow position in HVAC system applications. It assists with zone-based air distribution, ventilation balancing, and controlled airflow delivery across connected terminal and duct sections within building air handling systems.