Washington Administrative Code › Title 51 - Enterprise Services, Department of (Building Code Council) › Chapter 51-11C - State Building Code adoption and amendment of the 2021 edition of the International Energy Conservation Code, Commercial › Section 51-11C-20206 - Section C202.6-F

Current through Register Vol. 24-14, July 15, 2024
FAN, EMBEDDED.
A fan that is part of a
				manufactured assembly where the assembly includes functions other than air
				movement.
FAN ARRAY.
Multiple fans in parallel between two
				plenum sections in an air distribution system.
FAN BRAKE HORSEPOWER (BHP).
The horsepower
				delivered to the fan's shaft. Brake horsepower does not include the mechanical
				drive losses (belts, gears, etc.).
FAN ELECTRICAL INPUT POWER (Fan kW
				design).
The electrical input power in kilowatts
				required to operate an individual fan or fan array at design conditions. It
				includes the power consumption of motor controllers, if present.
FAN ENERGY INDEX (FEI).
The ratio of the electric
				input power of a reference fan to the electric input power of the actual fan as
				calculated in accordance with AMCA 208.
FAN SYSTEM.
Includes all the fans that contribute
				to the movement of air through a point of a common duct, plenum, or
				cabinet.
FAN SYSTEM, COMPLEX.
A
fan system
that combines supply, exhaust and/or other fans, or is not captured by other
fan system
types.
FAN SYSTEM, EXHAUST/RELIEF.
A
fan
				system
dedicated to the removal of air from interior spaces to the
				outdoors.
FAN SYSTEM, MULTI-ZONE VARIABLE AIR VOLUME (VAV).
A
fan system
that serves three or more space-conditioning
				zones where airflow to each zone is individually controlled based on heating,
				cooling and/or ventilation requirements, indoor fan airflow varies as a
				function of load, and the sum of the minimum zone airflows is 40 percent or
				less of the fan system design conditions.
FAN SYSTEM, RETURN.
A
fan system
dedicated to removing air from interior where some or all the air is to be
				recirculated except during economizer operation.
FAN SYSTEM, SINGLE-CABINET.
A
fan
				system
where a single fan, single fan array, a single set of fans
				operating in parallel, or fans or fan arrays in series and embedded in the same
				cabinet, that both supplies air to a space and recirculates the air.
FAN SYSTEM, SUPPLY-ONLY.
A
fan
				system
that provides supply air to interior spaces and does not
				recirculate the air.
FAN SYSTEM, TRANSFER.
A fan system that
				exclusively moves air from one occupied space to another.
FAN SYSTEM AIRFLOW (cfm).
The sum of the airflow
				of all fans with
fan electrical input power
greater than 1 kW
				at
fan system design conditions
, excluding the airflow that
				passes through downstream fans with fan input power less than 1 kW.
FAN SYSTEM BHP.
The sum of the fan brake
				horsepower of all fans that are required to operate at fan system design
				conditions to supply air from the heating or cooling source to the
conditioned space(s)
and return it to the source or exhaust it
				to the outdoors.
FAN SYSTEM DESIGN CONDITIONS.
Operating conditions
				that can be expected to occur during normal system operation that result in the
				highest supply fan airflow rate to conditioned spaces served by the system,
				other than during air economizer operation.
FAN SYSTEM ELECTRICAL INPUT POWER (Fan
				kWdesign, system).
The sum of the fan electrical
				input power (Fan kW) of all fans that are required to operate at fan system
				design conditions to supply air from the heating or cooling source to the
				conditioned spaces, return it to the source, exhaust it to the outdoors, or
				transfer it to another space.
FAN SYSTEM MOTOR NAMEPLATE HP.
The sum of the
				motor nameplate horsepower of all fans that are required to operate at design
				conditions to supply air from the heating or cooling source to the
conditioned space(s)
and return it to the source or exhaust it
				to the outdoors.
FAULT DETECTION AND DIAGNOSTICS (FDD) SYSTEM.
A
				software platform that utilizes building analytic algorithms to convert data
				provided by sensors and devices to automatically identify faults in building
				systems and provide a prioritized list of actionable resolutions to those
				faults based on cost or energy avoidance, comfort and maintenance
				impact.
FENESTRATION.
Products classified as either
				skylights or vertical fenestration.
SKYLIGHTS.
Glass or other transparent or
				translucent glazing material installed at a slope of less than 60 degrees
				(91.05 rad) from horizontal, including unit skylights, tubular daylighting
				devices and glazing materials in solariums, sunrooms, roofs,
greenhouses
, and sloped walls.
VERTICAL FENESTRATION.
Windows that are fixed or
				operable, doors with more than 50 percent glazed area and glazed block composed
				of glass or other transparent or translucent glazing materials and installed at
				a slope not less than 60 degrees (91.05 rad) from horizontal. Opaque areas such
				as spandrel panels are not considered vertical fenestration.
CLERESTORY FENESTRATION.
An upper region of
				vertical fenestration provided for the purpose of admitting daylight beyond the
				perimeter of a space. The entire clerestory fenestration assembly is installed
				at a height greater than 8 feet above the finished floor.
FENESTRATION AREA.
Total area of the fenestration
				measured using the rough opening, and including the glazing, sash and
				frame.
FENESTRATION PRODUCT, FIELD-FABRICATED.
A
				fenestration product whose frame is made at the construction site of standard
				dimensional lumber or other materials that were not previously cut, or
				otherwise formed with the specific intention of being used to fabricate a
				fenestration product or exterior door. Field fabricated does not include
				site-built fenestration.
FENESTRATION PRODUCT, SITE-BUILT.
A fenestration
				designed to be made up of field-glazed or field-assembled units using specific
				factory cut or otherwise factory-formed framing and glazing units. Examples of
				site-built fenestration include storefront systems, curtain walls, and atrium
				roof systems.
F
-FACTOR.
The perimeter heat loss
				factor for slab-on-grade floors (Btu/h × ft ×
								°F) [W/(m × K)].
FLOOR AREA, NET.
The actual occupied area not
				including unoccupied accessory areas such as corridors, stairways, toilet
				rooms, mechanical rooms and closets.
FURNACE ELECTRICITY RATIO.
The ratio of furnace
				electricity use to total furnace energy computed as ratio = (3.412 ×
EAE
)/1000 ×
EF
+ 3.412 ×
EAE
) where
EAE
(average annual auxiliary
				electrical consumption) and
EF
(average
				annual fuel energy consumption) are defined in Appendix N to Subpart B of Part
				430 of Title 10 of the Code of Federal Regulations and
EF
is expressed in millions of Btus per
				year.
Reviser's note:
The brackets and enclosed
				  material in the text of the above section occurred in the copy filed by the
				  agency.
Statutory Authority:
				  RCW
				    19.27A.020,
				  19.27A.025 and
				  chapters
				  19.27 and
				  34.05 RCW. 13-04-056, §
				  51-11C-20206, filed 2/1/13, effective 7/1/13.