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-20212 - Section C202.12-L

Current through Register Vol. 24-14, July 15, 2024
LABELED.
Equipment, materials or products to which
				have been affixed a label, seal, symbol or other identifying mark of a
				nationally recognized testing laboratory,
approved agency
or
				other organization concerned with product evaluation that maintains periodic
				inspection of the production of the above-labeled items and whose labeling
				indicates either that the equipment, material or product meets identified
				standards or has been tested and found suitable for a specified purpose.
LARGE-DIAMETER CEILING FAN.
A ceiling fan that is
				greater than seven feet (2134 mm) in diameter. These fans are sometimes
				referred to as High-Volume, Low-Speed (HVLS) fans.
LARGEST NET CAPACITY INCREMENT.
The largest
				increase in capacity when switching between combinations of base compressors
				that is expected to occur under the
compressed air system
control scheme.
LINER SYSTEM (LS).
A system that includes the
				following:
1. A continuous vapor
			 barrier liner membrane that is installed below the purlins and that is
			 uninterrupted by framing members.
2. An uncompressed, unfaced insulation
			 resting on top of the liner membrane and located between the purlins.
For multilayer installations, the last rated
R
-value of insulation is for unfaced insulation draped over
				purlins and then compressed when the metal roof panels are attached.
LISTED.
Equipment, materials, products or services
				included in a list published by an organization acceptable to the
code
				official
and concerned with evaluation of products or services that
				maintains periodic inspection of production of
listed
equipment or materials or periodic evaluation of services and whose listing
				states either that the equipment, material, product or service meets identified
				standards or has been tested and found suitable for a specified purpose.
LOW-CARBON DISTRICT ENERGY EXCHANGE SYSTEM.
Any
				system serving multiple buildings providing energy in the form of a circulated
				fluid that can accept or reject heat from individual buildings. Energy can be
				indirectly converted to meet building heating or cooling loads by serving as
				the heat source or sink for heat-pump systems. Examples include, but are not
				limited to, low temperature condenser water, ground source condenser water, or
				sewer heat recovery.
Low-carbon district energy exchange systems must demonstrate
				that 25 percent of the annual district-system-net-load-met (sum of heating and
				cooling energy provided to attached buildings) comes from heat recovery between
				connected buildings, waste heat, or
renewable energy resources
and no more than 25 percent of the annual heat input to the system comes from
				fossil fuel or electric-resistance sources.
LOW-CARBON DISTRICT HEATING AND COOLING OR HEATING ONLY
				SYSTEM.
Any system serving multiple buildings providing energy in the
				form of direct heating and cooling, or heating only to a building. Energy can
				be directly converted to meet building heating or cooling loads through a heat
				exchanger. Examples include, but are not limited to, steam, hot water, and
				chilled water.
Low-carbon district systems must demonstrate the
				following:
1. Distribution losses must
			 be accounted for and may not exceed 10 percent of the annual load delivered to
			 buildings served by the system.
2.
			 Twenty-five percent of the annual district-system-net-load-met (sum of heating
			 and cooling energy provided to attached buildings) comes from heat recovery
			 between connected buildings, waste heat or
renewable energy
			 resources
and no more than 25 percent of the annual heat input to the
			 system comes from fossil fuel or electric resistance sources; or
3. No more than 10 percent of the system
			 annual heat input to the system comes from fossil fuel or electric resistance
			 sources.
LOW-SLOPED ROOF.
A roof having a slope less than
				2 units vertical in 12 units horizontal.
LOW-VOLTAGE DRY-TYPE DISTRIBUTION TRANSFORMER.
A
				transformer that is air-cooled, does not use oil as a coolant, has an input
				voltage less than or equal to 600 volts and is rated for operation at a
				frequency of 60 hertz.
LOW-VOLTAGE LIGHTING.
A lighting system
				consisting of an isolating power supply, the low voltage luminaires, and
				associated equipment that are all identified for the use.
LUMINAIRE.
A complete lighting unit consisting of
				a lamp or lamps together with the housing designed to distribute the light,
				position and protect the lamps, and connect the lamps to the power
				supply.
LUMINAIRE-LEVEL LIGHTING CONTROL.
A lighting
				system consisting of one or more
lu-minaires
where each
luminaire
has embedded lighting control logic, occupancy and
				ambient light sensors, and local override switching capability, where required.
				Each
luminaire
shall also have local or central wireless
				networking capabilities to detect and share information with other
luminaires
to adjust to occupancy and/or daylight in the
				space.
Statutory Authority:
				  RCW
				    19.27A.020,
				  19.27A.025 and
				  chapters
				  19.27 and
				  34.05 RCW. 13-04-056, §
				  51-11C-20212, filed 2/1/13, effective
				  7/1/13.