Codes and Controls Commercial Building Energy Code Requirements for Light Control. Michael Jouaneh, CEM, LEED AP September 20, 2012

Transcription

1 Commercial Building Energy Code Requirements for Light Control Michael Jouaneh, CEM, LEED AP September 20, 2012

2 Table of Contents What Code/Standard Does Your State Use?... 3 Mandatory Lighting Control Requirements... 4 Renovations or Alterations... 5 Going beyond Minimum Code Requirements... 6 Incentives for Going beyond the Minimum Requirements... 7 LEED... 9 What s Next? About the Author Lutron Energy Code Solutions by State Key Lighting Control Requirements More information... Back cover Note: This document summarizes the lighting control requirements and optional control credits for commercial buildings according to the nation s top energy and green building codes/standards California s Title 24, the International Energy Conservation Code (IECC), ASHRAE 90.1, International Green Construction Code (IgCC), and ASHRAE It is for information purposes only. It is not meant to replace those codes/standards. Please refer to those standards for precise interpretation. 2 Lutron

3 The nation s top building energy codes and standards reflect the importance of using lighting controls to conserve energy. In the ASHRAE Standard, for example, there are mandatory requirements for area controls, automatic lighting shutoff, bi-level lighting, daylight harvesting, exterior lighting control, parking garage lighting control, and stairwell lighting control. Additionally, the designer must ensure that all lighting controls are functionally tested. On October 19, 2011, the U.S. Department of Energy (DOE) issued a ruling that requires all states to certify that they have updated the provisions of their commercial building code regarding energy efficiency to meet or exceed ASHRAE by Oct. 18, Thus, it s expected that these lighting control requirements will be in place for most states for all new construction and major renovations of commercial buildings. What Code/Standard Does Your State Use? California: Title 24 Part 6 Rest of the county split between: IECC (International Energy Conservation Code) and ASHRAE 90.1 (American Society of Heating, Refrigerating, and Air-Conditioning Engineers) Most states currently use ASHRAE or IECC 2009 as the basis for their building energy code. You ll also notice that many states do not have a statewide energy code but some jurisdictions within those states have a local code based on ASHRAE 90.1 or IECC. meets or exceeds ASHRAE Standard or equivalent meets or exceeds ASHRAE Standard or equivalent meets or exceeds ASHRAE Standard or equivalent no statewide code or precedes ASHRAE Standard Get all of the most up-to-date code status maps and other valuable resources at * state has adopted a new code to be effective at a later date NOTE: This map reflects only mandatory statewide codes currently in effect. 3 Lutron

4 Mandatory Lighting Control Requirements Below are the key mandatory lighting control requirements that must be followed for new construction, additions, alterations, or renovations of commercial buildings in jurisdictions that have adopted one of the codes/standards. These requirements are similar among all the codes/standards with some subtle differences among them. These are the minimum energy code requirements in ASHRAE , IECC 2012, and Title For more information see Table Lutron Energy Code Solutions by State (page 12). Area control: Each area enclosed by ceiling-height partitions must have an accessible, independent switching or control device (such as an occupancy sensor, manual switch, or dimmer) to control the general lighting. Automatic shut-off: All indoor lighting systems must include a separate automatic shut-off control, such as an occupancy sensor or time switch (i.e. timeclock). Automatic receptacle control: 50% of power outlets in certain spaces, such as private and open offices, must be controlled with an occupancy sensor or timeclock. Daylight zone control: Areas in daylight zones* shall have a separate control for the general lighting**. Typically, a daylight sensor and dimming ballasts that control at least 50% of the general lighting power, meets this requirement. Switched daylight control also complies with code, but is more disruptive to occupants. Exterior lighting control: Permanently installed outdoor lighting must be controlled by a daylight sensor or astronomical time switch that automatically turns off the lighting during daylight hours. Additionally, in , in most exterior areas, lighting has to be automatically reduced by at least 30% after business hours or when no activity is detected after 15 minutes. Functional testing: Prior to inspection, lighting controls must be tested to ensure that they are working properly. Hotel/motel guest room lighting control (manual): All guestrooms must have a control at the entry which controls all the permanently installed lighting except those in the bathroom. Bathrooms must use an automatic lighting shut-off control (i.e. occupancy sensor) to turn lights off within 60 minutes of vacancy. In California, guest rooms must meet all the Title 24 residential requirements which basically require either high-efficacy lights, dimmers, or vacancy sensors in most spaces. Manual-on or partial-on occupancy control: For most spaces, occupancy sensors shall not automatically turn the lighting to full-on. This effectively requires manual-on/automatic-off controls or a 50% maximum light level for auto-on. These controls are referred to as vacancy sensors or multi-level occupancy sensors. Spaces that allow auto-on include: public corridors and stairwells, restrooms, primary building entrance areas and lobbies, and areas where manual-on operation would endanger safety or security. * Daylight zones are typically one window height (distance from top of window to the floor) into the space, and the width of the window, plus two feet on both sides of the window. ** General lighting is lighting that provides a substantially uniform level of illumination throughout an area or space. General lighting does not include decorative lighting. 4 Lutron

5 Mandatory Lighting Control Requirements (cont.) Light reduction controls: Most spaces must allow the occupants to select a lighting level that is between 30% and 70% of full power (at least 50% or lower for IECC) in addition to OFF by either continuous dimming, stepped dimming (dimming lights to certain, pre-defined, light levels), or stepped switching (separately switching alternate lamps in a fixture or alternate luminaires in a space) while maintaining a reasonably uniform level of illuminance throughout the controlled area. Occupancy sensor or timer switch controls: Occupancy sensors (as well as count-down timers in ) that turn off lighting within 30 minutes of vacancy are required in spaces such as, but not limited to: 1. classrooms and lecture halls 2. conference, meeting, and training rooms 3. employee lunch and break rooms 4. storage and supply rooms Parking garage lighting control: Lighting must be reduced by at least 30% when no activity is detected for 30 minutes. Areas along the perimeter must have automatic daylight controls. And daylight transition zones (i.e. entryways) shall have automatic controls that turn lighting on during the day and off at sunset to help people adapt easier to the change in light level upon entering the garage. Stairwell controls: Lighting in enclosed stairwells shall have one or more control devices to automatically reduce lighting power by at least 50% within 30 minutes of vacancy. Renovations or Alterations Note that the minimum energy code requirements apply to both new construction and renovations or alterations of building lighting. In CA Title and IECC 2012, at least 50% of the luminaires have to be replaced in order to qualify as an alteration. If you replace less than 50% of the luminaires and don t increase the LPD (Lighting Power Density or watts per square foot of lighting power) in the altered space, then you don t need to comply with the minimum energy code requirements for lighting. Note that alterations do not include routine maintenance or repair situations. ASHRAE has pushed the bar higher. This standard requires that if more than 10% of the lighting load is altered (i.e. at least both the lamps and ballasts are changed) in a space, then all the lighting in the space must comply with automatic shut-off and LPD requirements for the space. Title (effective Jan. 2014) is looking at adding similar requirements. 5 Lutron

6 Going beyond Minimum Code Requirements Also known as stretch codes, green building codes/standards such as ASHRAE or IgCC (International Green Construction Code), go beyond energy and include items like indoor environmental quality and site sustainability. In most cases, they are an overlay on top of minimum energy code requirements. For example, the prescriptive lighting requirements of ASHRAE require compliance with the lighting requirements in ASHRAE Similarly, the lighting requirements of IgCC require compliance with the IECC requirements for lighting. Below are some of the requirements in ASHRAE Similar requirements are also in IgCC Automatic Light Reduction Control: Lighting in spaces such as hallways, storage and library stacks must be automatically reduced by at least 50% power when no one is present. Automated Shading: ASHRAE currently has requirements to use building projections (e.g. louvers or light shelves) for reduced solar heat gain and for office space shading for glare control. Automated shades can be used for compliance. This is the first time any code or standard has allowed automated shades to comply with a requirement. Demand Responsive System/Peak Load Reduction: Building projects shall contain automatic systems, such as demand limiting or load shifting, that are capable of reducing lighting and other loads by at least 10%. Energy Consumption Management: Total building energy must be monitored and reported. End uses such as lighting loads have to be broken out separately. Hotel/motel guest room lighting and HVAC Control (Automatic): Lighting, switched outlets, and televisions shall be automatically turned off whenever guest room is empty. HVAC set points shall be automatically raised by 5º F in cooling mode and lowered by 5º F in heating mode when room is empty. Emergency Lighting Control: Lighting in any area within a building that is required to be continuously illuminated for reasons of building security or emergency egress shall not exceed 0.1 W/ft 2. Additional egress and security lighting shall be allowed, provided it is controlled by an automatic control device that turns off the additional lighting. 6 Lutron

7 Incentives for Going beyond the Minimum Requirements California s Title and ASRHAE provide extra lighting power credits for using additional lighting controls in a space above and beyond the mandatory controls for that space. The additional lighting power credit can be used anywhere in the building, not just in the space with the additional controls. These allowances give the designer more flexibility by letting them use additional lighting in the building for desired spaces. The following table contains the lighting power allowances in Title You ll notice that using dimming ballasts, for instance, provides a factor of 0.10 for any building type. This means that the designer can use 10% of the wattage of the luminaires that are using dimming ballasts as extra lighting power in the building. If all the lights in an office building used dimming ballasts, then the maximum LPD (Lighting Power Density) or watts per square foot of lighting power in the building would increase by 10%. In the case of an office building, this means the LPD would be instead of 0.85 watts per square foot. Title Lighting Power Allowances CONTROL SPACE FACTOR Multi-level occ. sensor Multi-level occ. sensor that reduces lighting power at least 50% when spaces are vacant Manual dimming Multi-scene programmable dimming Manual dimming of dimmable electronic ballasts Demand responsive lighting with dimming ballasts Automatic multi-level daylighting controls Any space less than or equal to 250 ft 2, any classroom, corridor, or conference room Hallways of hotels, multi-family, dormitory, senior housing, commercial and industrial storage stack areas, library stacks Hotels/motels, restaurants, auditoriums, theaters Hotels/motels, restaurants, auditoriums, theaters 0.20 (0.25 with dimming; on top of daylighting controls factor below when used with daylighting controls) 0.15 to 0.25 depending on space type All building types 0.10 All building types 0.15 Sidelit and skylit daylight areas 0.08 to 0.34 depending on Effective Aperture* * Effective aperture (EA) is a measure of the extent that vertical glazing or skylights are effective for providing daylighting, calculated using the following formula: 1 ( da) x n ( A i x T i ) i =1 da = daylight area A = window area T = visible light transmittance n = number of windows in the room Source: CA Title Table 146-C Lighting Power Adjustment Factors. 7 Lutron

8 Incentives for Going beyond the Minimum Requirements (cont.) Below is the summary of the ASHRAE lighting power allowances for using additional lighting controls above what s already mandated in ASHRAE Lighting Power Allowances CONTROL SPACE FACTOR Multi-level occ. sensor Open and private office, classroom, conference room, or retail sales area 0.05 Manual, continuous dimming control or programmable multi-level dimming control Programmable multi-level dimming control using programmable time scheduling Automatic continuous daylight dimming or multi-level daylight switching Workstation luminaire with occupancy sensors controlling dimmable downlight Workstation luminaire with occupancy sensors controlling dimmable downlight and personal dimming control Open and private office, classroom, conference room, or retail sales area Open and private office, classroom, conference room, retail sales area, lobby, atrium, dining area, corridors/stairways, gym/pool, mall concourse, or parking garage Open and private office, classroom, conference room, retail sales area, lobby, atrium, dining area, corridors/stairways, gym/pool, mall concourse, or parking garage Open office 0.25 Open office to 0.10 depending on space type 0.05 to 0.10 depending on space type 0.10 to 0.20 depending on dimming or switching, effective aperture, and space type Source: ASHRAE Table 9.6.2: Control Factors Used in Calculating Additional Interior Lighting Power Allowance 8 Lutron

9 LEED LEED (Leadership in Energy and Environmental Design) has gained tremendous popularity there are over 30,000 registered commercial LEED projects and over 10,000 commercial LEED certified buildings now and counting. While the LEED green building rating system is not a standard or code, it can be a requirement, especially for new government buildings which require LEED certification in many jurisdictions. Many of the requirements in LEED are based on going beyond the minimum energy code requirements. For instance, the Optimize Energy Performance Credit, awards up to 19 LEED points if a new building is shown to outperform an ASHRAE compliant baseline building in terms of energy performance. This chart below shows how the USGBC (U.S. Green Building Council) expects LEED to fit with the traditional building energy codes (ASHRAE 90.1, Title 24, or IECC) and green building codes (ASHRAE or IgCC). According to the USGBC, a LEED certified building today is designed to be more sustainable than an energy code compliant building and about equal to a green code complaint building. A LEED Silver, Gold, or Platinum project is designed to be more sustainable than a green, code-compliant one. Over time, as the codes/standards get more and more stringent so will LEED. The USGBC expects LEED to be pushing the bar higher, above and beyond the minimum energy or green code. Source: USGBC whitepaper Greening the Codes, 9 Lutron

10 LEED (cont.) Light control contributes significantly toward LEED certification. In fact, light control contributes to 6 out of the 7 LEED categories (all of them except Water Efficiency). And light control and light control manufacturer services provide solutions that contribute to up to 40 of the 110 possible points in LEED-NC That s significant because you need a minimum of 40 points to achieve the LEED Certified level. See for more info. LEED Credits that Light Control Contributes to CATEGORY CREDIT Sustainable Sites Light Pollution Reduction (1 pt) Energy & Atmosphere Commissioning (2 pts) Energy Performance (1-19 pts) Measurement and Verification (3 pts) Materials & Resources Indoor Environmental Quality Innovation in Design Regional Priority Recycled Content (1-2 pts) Controllability of Systems (1 pt) Daylight & Views (2 pts) Innovation in Design (1-5 pts) LEED-AP (1 pt) Varies by zip code (1-4 pts) What s Next? The next generation of codes/standards will continue to push the envelope of energy efficiency and sustainability. Requirements expected in the upcoming versions of the codes/standards are: Controllable Lighting (Multiple Light Levels or Dimming): Title (effective Jan. 1, 2014) will require more light levels than ON/OFF. Most spaces using linear fluorescent lights will have to provide full continuous dimming or at least 5 different light levels including ON/OFF. Demand Responsive Lighting: Energy standards such as Title and the green building standards/codes will expand the requirements for demand responsive lighting (lighting that can shed load upon receiving a demand response signal) into more spaces and building types. Title , for instance, is expected to require all the lighting in buildings larger than 10,000 square feet be capable of automatically shedding load by a minimum of 15%. Also, LEED v4 (expected in summer 2013) will have a new credit for Demand Response. 10 Lutron

11 What s Next? (cont.) Energy Monitoring: Energy monitoring is important today in green codes/standards but we should start seeing requirements for energy monitoring in energy codes such as ASHRAE Automatic Receptacle Control: We anticipate requirements for receptacle control in Title ASHRAE will likely require receptacle control in more spaces. Emergency Lighting Control: Lights designated for emergency use must be controlled by automatic shut-off similar to the general lighting. Lighting Quality Requirements: LEED and the green standards such as ASHRAE will have requirements for better lighting that improves indoor environmental quality. The requirements will include controllable lighting (i.e. personal light control) so that occupants can select the desired light level for their task at hand. Other updated codes/standards are expected to be released in 2012 and beyond, namely the ASHRAE 100 energy standard for existing buildings, and ASHRAE 90.2 residential building energy standard. Conclusion Light controls play a vital role toward helping us meet the increasingly stringent energy and green code requirements; requirements which help our nation meet its energy conservation goals in an energy-starved world. To find more information visit About the Author Michael Jouaneh is manager of sustainability and energy standards for Lutron. He is active in the development of the nation s top energy building codes/standards. He is a consultant to the ASHRAE 90.1 Lighting Subcommittee and a voting member of the ASHRAE 189.1, 100, and 90.2 committees. 11 Lutron

12 Lutron Energy Code Solutions by State Number Key Lighting Control Requirements Common Lutron Solutions 1 AL 2 AR CA CO CT DE DC FL GA HI ID IL IN IA KS 2 1 Area Control 2 Automatic Shut-off 3 Daylight Zone Control (Automatic) 4 Daylight Zone Control (Manual) GRAFIK Eye QS Maestro Wireless Dimmer Pico wireless control Energi Savr NodeTM with QS timeclock Radio Powr SavrTM Occupancy Sensor LOS wired occupancy sensors EcoSystem ballasts with wired or wireless daylight sensors Maestro Wireless Switch or Dimmer GRAFIK Eye QS 5 Demand Response Quantum 6 Dimming Ballasts EcoSystem or Hi-lume ballasts 7 Egress Lighting 8 Exterior Control 9 Exterior Light Reduction Radio Powr Savr Occupancy Sensor GRAFIK Eye QS Energi Savr Node with QS timeclock GRAFIK Eye QS Energi Savr Node with QS timeclock 10 Functional Testing Lutron Field Service 11 Guest Room Control (Automatic) 12 Guest Room Control (Manual) 13 Light Reduction Controls 14 Manual ON occupant sensors 15 Occupant Sensor Controls Maestro In-wall Vacancy Sensor Radio Powr Savr Vacancy Sensor Maestro wireless dimmer with Radio Powr Savr Occupancy/Vacancy Sensor Pico wireless control EcoSystem dimming ballasts with wall controls Maestro In-wall Vacancy Sensor Radio Powr Savr Vacancy Sensor Radio Powr Savr Occupancy Sensor LOS wired occupancy sensors 16 Stairwell Control PowPak Stairwell Fixture Notes: This document summarizes the lighting control requirements for commercial buildings according to the nation s top energy codes/standards. It is for information purposes only. It is not meant to replace those codes/standards. Please refer to those standards or to your local AHJ (Authority Having Jurisdiction) for precise interpretation. The following states are not shown because they have no building energy code: AK, AZ, MS, ND, SD, and WY. 1 Additional solutions from Lutron may apply. Contact your Lutron sales representative for more information. 2 The building energy code for these states is not mandatory. 3 The energy code requirements in this state are for public buildings only. 12 Lutron

13 Lutron Energy Code Solutions by State Number Key Lighting Control Requirements Common Lutron Solutions 1 KY LA ME MD MA MI MN MO 3 MT NE NV NH NJ NM NY 1 Area Control 2 Automatic Shut-off 3 Daylight Zone Control (Automatic) 4 Daylight Zone Control (Manual) GRAFIK Eye QS Maestro Wireless Dimmer Pico wireless control Energi Savr NodeTM with QS timeclock Radio Powr SavrTM Occupancy Sensor LOS wired occupancy sensors EcoSystem ballasts with wired or wireless daylight sensors Maestro Wireless Switch or Dimmer GRAFIK Eye QS 5 Demand Response Quantum 6 Dimming Ballasts EcoSystem or Hi-lume ballasts 7 Egress Lighting 8 Exterior Control 9 Exterior Light Reduction Radio Powr Savr Occupancy Sensor GRAFIK Eye QS Energi Savr Node with QS timeclock GRAFIK Eye QS Energi Savr Node with QS timeclock 10 Functional Testing Lutron Field Service 11 Guest Room Control (Automatic) 12 Guest Room Control (Manual) 13 Light Reduction Controls 14 Manual ON occupant sensors 15 Occupant Sensor Controls Maestro In-wall Vacancy Sensor Radio Powr Savr Vacancy Sensor Maestro wireless dimmer with Radio Powr Savr Occupancy/Vacancy Sensor Pico wireless control EcoSystem dimming ballasts with wall controls Maestro In-wall Vacancy Sensor Radio Powr Savr Vacancy Sensor Radio Powr Savr Occupancy Sensor LOS wired occupancy sensors 16 Stairwell Control PowPak Stairwell Fixture Notes: This document summarizes the lighting control requirements for commercial buildings according to the nation s top energy codes/standards. It is for information purposes only. It is not meant to replace those codes/standards. Please refer to those standards or to your local AHJ (Authority Having Jurisdiction) for precise interpretation. The following states are not shown because they have no building energy code: AK, AZ, MS, ND, SD, and WY. 1 Additional solutions from Lutron may apply. Contact your Lutron sales representative for more information. 2 The building energy code for these states is not mandatory. 3 The energy code requirements in this state are for public buildings only. 13 Lutron

14 Lutron Energy Code Solutions by State Number Key Lighting Control Requirements Common Lutron Solutions 1 NC OH OK OR PA RI SC TN TX UT VT VA WA WV 2 WI 1 Area Control 2 Automatic Shut-off 3 Daylight Zone Control (Automatic) 4 Daylight Zone Control (Manual) GRAFIK Eye QS Maestro Wireless Dimmer Pico wireless control Energi Savr NodeTM with QS timeclock Radio Powr SavrTM Occupancy Sensor LOS wired occupancy sensors EcoSystem ballasts with wired or wireless daylight sensors Maestro Wireless Switch or Dimmer GRAFIK Eye QS 5 Demand Response Quantum 6 Dimming Ballasts EcoSystem or Hi-lume ballasts 7 Egress Lighting 8 Exterior Control 9 Exterior Light Reduction Radio Powr Savr Occupancy Sensor GRAFIK Eye QS Energi Savr Node with QS timeclock GRAFIK Eye QS Energi Savr Node with QS timeclock 10 Functional Testing Lutron Field Service 11 Guest Room Control (Automatic) 12 Guest Room Control (Manual) 13 Light Reduction Controls 14 Manual ON occupant sensors 15 Occupant Sensor Controls Maestro In-wall Vacancy Sensor Radio Powr Savr Vacancy Sensor Maestro wireless dimmer with Radio Powr Savr Occupancy/Vacancy Sensor Pico wireless control EcoSystem dimming ballasts with wall controls Maestro In-wall Vacancy Sensor Radio Powr Savr Vacancy Sensor Radio Powr Savr Occupancy Sensor LOS wired occupancy sensors 16 Stairwell Control PowPak Stairwell Fixture Notes: This document summarizes the lighting control requirements for commercial buildings according to the nation s top energy codes/standards. It is for information purposes only. It is not meant to replace those codes/standards. Please refer to those standards or to your local AHJ (Authority Having Jurisdiction) for precise interpretation. The following states are not shown because they have no building energy code: AK, AZ, MS, ND, SD, and WY. 1 Additional solutions from Lutron may apply. Contact your Lutron sales representative for more information. 2 The building energy code for these states is not mandatory. 3 The energy code requirements in this state are for public buildings only. 14 Lutron

15 Key Lighting Control Requirements 1. Area control: Each area enclosed by ceiling-height partitions must have an accessible, independent switching or control device (such as an occupancy sensor, manual switch, or dimmer) to control the general lighting. 2. Automatic lighting shut-off: All indoor lighting systems must include a separate automatic shut-off control, such as an occupancy sensor or time switch (i.e. timeclock). 3. Daylight zone control (Automatic): Areas in daylight zones shall have AUTOMATIC control for the general lighting based on the daylight in the space. Typically, a daylight sensor and dimming ballasts that control at least 50% of the general lighting power, meets this requirement. Switched daylight control also complies with code, but is more disruptive to occupants. 4. Daylight zone control (Manual): Areas in daylight zones shall have a separate MANUAL control for the general lighting. 5. Demand respone: Building projects shall contain automatic systems, such as demand limiting or load shifting, that are capable of reducing lighting and other loads by at least 15%. In CA Title , this is required for a large retails facilities only. 6. Dimming ballasts: Hard-wired fluorescent electronic dimming ballasts with photocell or programmable dimming control are required for all lamps in all zones if the space uses more than 0.8 W/ft 2 of lighting power. 7. Egress lighting: Egress lighting shall be controlled to shut off during periods that the building space served by the means of egress is unnoccupied. 8. Exterior control: Permanently installed outdoor lighting must be controlled by a daylight sensor or astronomical time switch that automatically turns off the lighting during daylight hours. 9. Exterior light reduction: Certain exterior lighting must be automatically reduced by at least 30% when no activity is detected or during nighttime hours. 10. Functional testing: Prior to inspection, lighting controls must be tested to ensure that they are working properly. 11. Guest room control (Automatic): Guestrooms must have be capable of automatically turning OFF all the permanently installed lighting and switched receptacles with the room is vacant. 12. Guest room control (Manual): All guestrooms must have a control at the entry which controls all the permanently installed lighting except those in the bathroom. Bathrooms must use an automatic lighting shut-off control (i.e. occupancy sensor) to turn lights off within 60 minutes of vacancy. In California, guest rooms must meet all the Title 24 residential requirements which basically require either high-efficacy lights, dimmers, or vacancy sensors in most spaces. 15 Lutron

16 Key Lighting Control Requirements (cont.) 13. Light reduction controls: Most spaces must allow the occupants to select a lighting level that is between 30% and 70% of full power (at least 50% or lower for IECC) in addition to OFF by either continuous dimming, stepped dimming (dimming lights to certain, pre-defined, light levels), or stepped switching (separately switching alternate lamps in a fixture or alternate luminaires in a space) while maintaining a reasonably uniform level of illuminance throughout the controlled area. 14. Manual ON occupant sensors: Occupancy sensors used in most spaces must be manual-on or auto-on to not more than 50% lighting power. For the Oregon State Code, occupancy sensors in daylight zones must be manual ON. 15. Occupant sensor controls: Occupancy sensors or count-down timers that turn off lighting within 30 minutes of vacancy are required in spaces such as, but not limited to: 1. classrooms and lecture halls 2. conference, meeting, and training rooms 3. employee lunch and break rooms 4. storage and supply rooms 16. Stairwell control: Lighting in enclosed stairwells shall have one or more control devices to automatically reduce lighting power by at least 50% within 30 minutes of vacancy. 16 Lutron

17 More Information Questions? Contact: Michael Jouaneh, CEM, LEED AP Lutron Electronics Co., Inc office Telephone: International: World Headquarters Lutron Electronics Co., Inc Suter Road Coopersburg, PA USA 09/2012 Lutron Electronics Co. Inc. P/N REV B