For what purpose must connectors maintain a proper pitch?

Connectors must maintain a proper pitch primarily to prevent condensation buildup within the ductwork. When airflow moves through duct connectors, a correct pitch ensures that any moisture, which can form due to temperature differentials and humidity levels, can effectively drain away. If the pitch is incorrect and does not allow for proper drainage, it can lead to condensation pooling within the ducts. This moisture can cause various issues, including mold growth, damage to the ductwork, and reduced indoor air quality.

While airflow control, thermal insulation, and structural support are important considerations in mechanical systems, they are not the primary reason for maintaining the proper pitch in connectors. The focus on preventing condensation is crucial for maintaining system efficiency and longevity, as well as ensuring a healthy indoor environment.