How should duct connections to flanges of air distribution system equipment be treated?

Duct connections to the flanges of air distribution system equipment must be both sealed and mechanically fastened to ensure an effective and efficient system. Proper sealing prevents air leaks, which can significantly impact system performance and energy efficiency by maintaining the required airflow and pressure within the ducts. Additionally, mechanical fastening provides structural integrity and stability to the connection, ensuring that components remain securely in place during system operation.

This dual approach not only maximizes the performance of the HVAC system by providing a reliable seal against air leakage but also enhances the longevity of the equipment by preventing stress at connection points that could lead to mechanical failure. Implementing these best practices aligns with industry standards and regulations, promoting safe and efficient operation of air distribution systems.