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  1. Each fan or fan array with a combined motor name-plate horsepower greater than 1.00 hp or with a combined fan nameplate electrical input power greater than 0.89 kW shall have a fan energy index (FEI) of 1.00 or higher at fan system design conditions. Each fan and fan array used for a variable-air-volume system that meets the requirements of Section 140.4(c)2 shall have an FEI of 0.95 or higher at fan system design conditions.
    1. The FEI for fan arrays shall be calculated in accordance with ANSI/AMCA 208-18 Annex C.
    2. All FEI values shall be provided by a manufacturer, where fan selection software and/or fan catalogs display third-party-verified FEI values in accordance with ANSI/AMCA 208-18.
      Exception to Section 120.10(a)2: FEI values for embedded fans do not need to be third-party verified.
    Exception 1 to Section 120.10(a): Embedded fans that are part of the equipment listed under Section 110.1 or Section 110.2, computer room air conditioners (CRACs) as defined in 10 CFR 431, and DX-DOAS units.
    Exception 2 to Section 120.10(a): Embedded fans and embedded fan arrays with a combined motor nameplate horsepower of 5 hp or less or with a fan system electrical input power of 4.1 kW or less.
    Exception 3 to Section 120.10(a): Circulation fans, ceiling fans and air curtains.
    Exception 4 to Section 120.10(a): Fans that are intended to operate only during emergency conditions.
NOTE: Authority: Sections 25213, 25218, 25218.5, 25402 and 25402.1, Public Resources Code. Reference: Sections 25007, 25008, 25218.5, 25310, 25402, 25402.1, 25402.4, 25402.8 and 25943, Public Resources Code.

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