• Variable air volume:
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The Castle VAV air terminal units are designed for variable air volume supply in single duct air 
distribution systems Equipped with an airflow sensor and Belimo actuator/controller, they ensure 
pressure-independent control. From 150CFM to 7850CFM, they work effectively in 
both VAV and CAV systems. The SVT units adjust air volume based on room thermostat signals 
to maintain the desired temperature, with the airflow controller managing the supply.
Available accessories include sound attenuators, electric heaters, hot water coils, and more, all factory 
attached with a standard slip and drive connection (except multiple outlet plenums).
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