ASHRAE Journal Supplement - AMCA InMotion - November 2023 - 14

Subject to Standards
Not Subject
to Standards
LSSD
(Low-Speed
Small-Diameter)
Standard (CFM/W)
Multi-Mount (CFM/W)
Hugger (CFM/W)
HSSD (CFM/W)*
(High-Speed
Small-Diameter)
HSBD (CFEI)**
(High-Speed
Belt-Driven)
VSD (Very-Small-Diameter) (CFM/W)*
>45deg. from
horizontal
Large-Diameter (CFEI)
>7 feet diameter
Lorem ipsum
*Not analyzed in this NOPR
**Proposed Coverage, not currently subject to standards
FIGURE 1. Scope of federal ceiling-fan regulations. Adapted from " Notice of Proposed Rulemaking (NOPR) for Ceiling Fans. " 4
testing is based on a modifi ed version of " ENERGY STAR®
Laboratory Guidance Manual: Building a Testing Facility
and Performing the Solid State Test Method for ENERGY
STAR Qualifi cation of Ceiling Fans " 7; for large-diameter
(greater than 7 ft [2.1 m]) ceiling fans (LDCF), performance
testing is based on ANSI/AMCA Standard 230-15. During
the recent rulemaking, minor modifi cations were made to
both. Most notably, for LDCF, measured electrical input
power is converted to standard air density. This conversion
generally causes a slight increase (roughly 3 percent) in
published electrical input power. No changes were made
to the effi ciency metrics, while the minimum number of
samples that must be tested remains two per basic model.
When it begins regulating a product, the DOE typically
adopts an industry standard, which it may modify,
for the test procedure. For air-circulating fans that are
not ceiling fans, the DOE adopted ANSI/AMCA Standard
230-23. The DOE's modifi cations to ANSI/AMCA Standard
230-23 include specifi cation of test frequency, phase, voltages,
and test-stability criteria. The effi ciency metric for
air-circulating fans is air-circulating-fan effi cacy (Effcirc)
14
2023 AMCA inmot ion
in cubic feet per minute (cfm) per watt (W) (cfm/W) at
maximum speed. A minimum of two fans per basic model
must be tested to determine product performance data.
Once a DOE test procedure is in place, the DOE typically
provides manufacturers 180 days to update published
performance data to the latest test standard. The DOE
requires manufacturers to make any representations of
energy use or effi ciency in accordance with the results
of testing pursuant to the federal test procedure. Under
certain circumstances, the DOE may provide an extension-typically,
an additional 180 days-for manufacturers
to meet this deadline.
Energy-Conservation Standards
The DOE test procedures provide a uniform method of
rating the performance of ceiling and other air-circulating
fans, including establishing an effi ciency metric.
For ceiling fans, rated performance must exceed the
minimum effi ciency level set forth in the energy-conservation
standard. For example, ceiling-fan energy index
(CFEI) is used for LDCF. CFEI is calculated at maximum
www.amca.org
Belt-Driven other
than HSBDs
Attributes Within
Any Category:
Centrifugal
Highly Decorative
Oscillating
Small-Diameter
< 7 feet diameter
http://www.amca.org
ASHRAE Journal Supplement - AMCA InMotion - November 2023

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