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-405028 - Section C405.2.8-Advanced lighting controls

Current through Register Vol. 24-14, July 15, 2024
C405.2.8
Advanced
			 lighting controls.
Any contiguous open office area larger than 5,000
			 square feet shall have its
general lighting
controlled by
			 either:
1.
Luminaire-level lighting
			 controls
(LLLC) conforming to the requirements of Section
			 C405.2.8.1.
2. Networked lighting
			 control (NLC) conforming to the requirements of Section C405.2.8.2.
C405.2.8.1
Luminaire-level lighting
			 controls.
Where
luminaire-level lighting controls
are
			 required, they shall be configured to provide the controls or equivalent
			 control function specified in Sections C405.2.1, C405.2.3, and C405.2.5. In
			 addition, each LLLC luminaire shall be independently configured to:
1. Provide for continuous full range
			 dimming.
2. Monitor occupant
			 activity to brighten or dim lights when occupied or unoccupied,
			 respectively.
3. Monitor ambient
			 lighting, both electric and daylight, and brighten or dim artificial light to
			 maintain desired light level. A maximum of 8 fixtures are permitted to be
			 controlled together to maintain uniform light levels within a single daylight
			 zone.
4. Allow configuration and
			 reconfiguration of performance parameters for each control strategy including:
			 High trim and low trim set-points, timeouts, dimming fade rates, and sensor
			 sensitivity adjustment.
5.
			 Construction documents shall include a submittal of a sequence of operations
			 including a specification outlining each of the functions required by this
			 section.
6. Luminaires shall be
			 configured with high end trim in accordance with Section C405.2.8.3.
C405.2.8.2
Networked
			 lighting control (NLC).
Where NLC are required, they shall be configured
			 to provide controls and minimum function as specified in Section C405.2. In
			 addition, each NLC luminaire shall be independently configured to:
1. Provide for continuous full range
			 dimming.
2. Each luminaire shall be
			 individually addressed.
EXCEPTIONS TO ITEM 2:
1. Multiple luminaires mounted on no more than 12
						  linear feet of a single lighting track and addressed as a single
						  luminaire.
2. Multiple linear luminaires that are ganged together
						  to create the appearance of a single longer fixture and addressed as a single
						  luminaire, where the total length of the combined luminaires is not more than
						  12 feet
.
3.
			 Monitor occupant activity to brighten or dim lighting when occupied or
			 unoccupied, respectively.
4.
			 Monitor ambient lighting, both electric and daylight, and brighten or dim
			 artificial light to maintain desired light level. A maximum of 8 fixtures are
			 permitted to be controlled together to maintain uniform light levels within a
			 single daylight zone.
5. Allow
			 configuration and reconfiguration of performance parameters for each control
			 strategy including: High trim and low trim set-points, timeouts, dimming fade
			 rates, and sensor sensitivity adjustment.
6. Allow for demand response load
			 shed.
7. Construction documents
			 shall include a submittal of a sequence of operations including a specification
			 outlining each of the functions required by this section.
8. Luminaires shall be configured with high
			 end trim in accordance with Section C405.2.8.3.
C405.2.8.3
High end trim.
Luminaires subject to high end trim shall be initially configured with the
			 following:
1. Programmed to limit the initial
			 maximum lumen output or maximum lighting power to 85 percent or less of full
			 light output or full power or to meet the target light level documented in
			 project sequence of operations using the least amount of power.
2. High end trim power levels are allowed to
			 automatically reset to accommodate lumen maintenance.
3. High end trim controls shall be accessible
			 only to authorized personnel.