AHRI 840 (I-P/2021): Performance Rating of Unit Ventilators
Standard Scope
This standard applies to unit ventilators, defined in Section 3.6.
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© 2021, by Air-Conditioning, Heating, and Refrigeration Institute
This standard applies to unit ventilators, defined in Section 3.6.
© 2021, by Air-Conditioning, Heating, and Refrigeration Institute