AMCA 207-17 Fan System Efficiency and Fan System Input Power
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The scope of this standard includes all electric motor driven fan systems that use a specific combination of components as defined below: 1. Fan airflow performance tested in accordance with ANSI/AMCA Standard 210  ANSI/AMCA Standard 230 , ANSI/AMCA Standard 260  or ISO Standard 5801  or rated in accordance with AMCA Publication 211 . 2. Polyphase induction motors within the scope of EPCA , IEC 60034-30-1 , or GB 18613 . Other types of motors are explicitly excluded. 3. Pulse-width modulated variable frequency drives (VFDs). 4. Mechanical power transmissions that use V-belts, synchronous belts, or flexible couplings.