ASHRAE Journal Supplement - AMCA InMotion - November 2023 - 8

regulation: " 'Commercial and industrial fan or blower'
means a rotary-bladed machine used to convert electrical
or mechanical power to air power, with an energy
output limited to 25 kilojoule per kilogram (kJ/kg) of air.
ic
pu
ic
oj
A commercial and industrial fan or blower has a rated fan
shaft power greater than or equal to 1 horsepower, or, for
fans without a rated shaft input power, an electrical input
power greater than or equal to 1 kilowatt (kW); and a fan
output power less than or equal to 150 horsepower. They
consist of an impeller, a shaft, bearings, and a structure
or housing. It may include a transmission, driver, and/
or controller at the time of sale. "
The fan types covered by the Title 20 effi ciency regulation
are:
■
■
Axial inline fan.
■ Axial panel fan.
Power roof ventilator (axial supply and exhaust and
centrifugal supply and exhaust).
■ Centrifugal housed.
■ Centrifugal inline.
■
Centrifugal unhoused (includes fans designed for use
in a fan array with partition walls separating them
from other fans in the array).
■
Radial housed.
Per Section 1602, the following are exempt from the
regulation:
■
Safety fans, meaning: " (1) a reversible axial fan in cylindrical
housing that is designed and marketed for use
in ducted tunnel ventilation that will reverse operations
under an emergency ventilation condition; (2) a
fan for use in explosive atmospheres tested and marked
according to ISO 80079-36:2016, Explosive atmospheres
-- Part 36: Non-electrical equipment for explosive atmospheres
-- Basic method and requirements; (3) a Positive
Pressure Ventilator; or (4) fans complying with ANSI/
UL 705 (August 23, 2021) Standard for Safety for Power
Ventilators and listed as 'Power Ventilators for Smoke
Control Systems.' "
■
Ceiling fans as defi ned in Section 430.2 of Code of
Federal Regulations Title 10, meaning " a nonportable
device that is suspended from a ceiling for circulating
air via the rotation of fan blades. "
■ Circulating fans.
■ Induced-fl ow fans.
8
2023 AMCA inmot ion
■
■
■
Jet fans.
■ Cross-fl ow fans.
■
■ Embedded fans as defi ned in ANSI/AMCA Standard
214-21, meaning fans " part of a manufactured assembly
where the assembly includes functions other than air
movement, " including embedded fans sold exclusively
for replacement of another embedded fan.
Fans mounted in or on motor vehicles or other mobile
equipment.
■ Fans that create a vacuum of 30 in. w.g. or more.
■
Air-curtain units, meaning: " equipment that produces a
directionally controlled stream of air with a minimum
width-to-depth aspect ratio of 5:1 and a discharge that
is not intended to be connected to unitary ductwork.
The controlled stream of air spans the entire height
and width of an opening and reduces the infi ltration or
transfer of air from one side of the opening to the other
and/or inhibits the passage of insects, dust, or debris. "
■
Fans designed and marketed to operate at or above
482°F (250°C).
Note that, as of this writing, the defi nition of safety
fan is likely to change and the exemption for embedded
fans is expected to go away with the " language cleanup "
rulemaking.
Note also that covered fans must bear a permanent
label or separate permanent labels noting:
■
■
The name of the manufacturer, the model number, and
the date of manufacture.
Fan-performance boundaries as defi ned in ANSI/AMCA
Standard 214, operating duty points at which FEI is 1.00
or higher and beyond which energy ineffi ciency results.
A label must be affi xed to a fan where it can be read
without parts of the fan being removed or a magnifying
glass or other instrument being used.
Federal Test Procedure
The jurisdiction of the federal test procedure is the United
States, U.S. territories, and, in accordance with a memorandum
of understanding between the DOE and Natural
Resources Canada, Canada. Like all DOE regulations, it
applies at the point of manufacture, meaning imported
products are covered.
When the DOE published the fi nal rule for the federal
test procedure on May 1, 2023, it did so with a 180-day
www.amca.org
http://www.amca.org
ASHRAE Journal Supplement - AMCA InMotion - November 2023

Table of Contents for the Digital Edition of ASHRAE Journal Supplement - AMCA InMotion - November 2023
