AHRI 1290 (I-P) and 1291 (SI): Performance Rating of Zone Dampers

These standards apply to zone dampers, as defined in Section 3 of the standards. They define the performance of zone dampers with respect to pressure drop, airflow leakage, airflow rate, and operational torque. This will provide specifiers and users with the data required to evaluate and compare zone dampers.

AHRI 1290-2017 (R2023) (I-P) Performance Rating of Zone Dampers

​​​​​​​AHRI 1291-2017 (R2023) (SI) Performance Rating of Zone Dampers

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