AHRI 840 (I-P) and 841 (SI): Performance Rating of Unit Ventilators

This standard applies to unit ventilators, defined in Section 3.6.

• ANSI/AHRI 840-2021 (I-P): Performance Rating of Unit Ventilators


• ANSI/AHRI 841-2021 (SI) Performance Rating of Unit Ventilators


• AHRI 840-2015 (I-P) Performance Rating of Unit Ventilators


• AHRI 841-2015 (SI) Performance Rating of Unit Ventilators

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