Classrooms
Discover the energy-saving potential of classrooms with Rayzeek’s occupancy sensor design guide. Learn how to meet energy code requirements while creating a more efficient learning environment.
Transforming Classrooms into Energy-Efficient Learning Spaces
Classrooms are dynamic spaces that serve as the foundation for learning and development. They are often filled with a variety of lighting fixtures, from overhead lights to task lighting, all of which contribute to a significant amount of energy consumption. The lighting in these spaces is typically left on for extended periods, even when the room is unoccupied, leading to unnecessary energy waste.
In a typical classroom, the lighting needs can vary greatly depending on the time of day, the activities taking place, and the number of occupants. This variability makes it challenging to manage lighting effectively and efficiently. As a result, there is a pressing need for solutions that can automatically control lighting based on occupancy, thereby reducing unnecessary energy consumption.
The need for energy conservation in classrooms is clear, and one of the most effective solutions is the use of occupancy sensors. These devices can automatically turn off lights when a room is vacant, significantly reducing energy consumption. With Rayzeek’s range of occupancy sensors, classrooms can become more energy-efficient, meeting the requirements of energy codes while also reducing operational costs.
符合能源法規
《國際能源節約規範》（International Energy Conservation Code，簡稱 IECC）是由國際規範委員會（International Code Council，簡稱 ICC）制定的示範規範，旨在確立建築物能源效益的最低設計與建造要求。IECC 每三年更新一次，以納入最新的能源節約實踐與技術。
IECC：為何您需要關注
IECC 已被美國各州和地方政府廣泛採用。IECC 涵蓋能源使用的多個方面，包括建築外圍結構（牆壁、屋頂和窗戶）、供暖與制冷系統，以及照明系統。
IECC 強制要求使用特定的照明控制設備（例如佔用感應器），以最大限度地減少各區域無人空間的能源浪費。
ANSI/ASHRAE/IES Standard 90.1（除低層住宅建築外的地點與建築能源標準）是由美國採暖、制冷與空調工程師學會（ASHRAE）發布的廣受認可之能源標準。
ASHRAE 90.1：為何您需要關注
ASHRAE 90.1 被用作全美建築能源法規的基準，並作為 IECC 內部的合規途徑，其中概述了商業建築組件（包括建築外圍結構、HVAC 系統、水加熱系統和照明系統）能源效益表現的最低要求。
ASHRAE 90.1 標準規定了最大允許照明功率密度和最低照明控制要求，包括在特定區域使用佔用感應器。
Title 24 為加州建築標準法規第 6 部分，官方稱為《住宅與非住宅建築能源效益標準》。Title 24 由加州能源委員會管理，並定期更新以反映新的能源效益技術與方法。
Title 24：為何您需要關注
Title 24 以其嚴格的要求而聞名，通常被認為比美國許多其他能源法規更為嚴格。Title 24 對建築施工的所有方面（包括供暖、通風、空調 (HVAC)、水加熱和照明）都制定了嚴格的能源表現標準。
Title 24 要求在商業建築的特定區域安裝佔用感應器，根據房間的佔用情況調節燈光，以確保不會浪費能源。
按州劃分的能源法規採用情況
展開以查看詳細表格 ↓
| 州份 | 現行商業法規 | 商業法規效益類別 |
|---|---|---|
| 阿拉巴馬州 | 90.1-2013 | 90.1-2013 |
| 阿拉斯加州 | 無全州統一規範 | 無全州統一法規 |
| 亞利桑那州 | 地方自治 | <90.1-2007 |
| 阿肯色州 | 2009 IECC 及 90.1-2007 | 90.1-2007 |
| 加利福尼亞州 | 2022年建築能源效益標準 | 90.1-2019 |
| 科羅拉多州 | 地方自治 | 無全州統一法規 |
| 康涅狄格州 | 2021 IECC 及 90.1-2019 | 90.1-2019 |
| 特拉華州 | 2018 IECC 及 90.1-2016 | 90.1-2013 |
| 哥倫比亞特區 | 90.1-2013^ | 90.1-2019 |
| 佛羅里達州 | 2021 IECC 及 90.1-2019^ | 90.1-2016 |
| 佐治亞州 | 2015 IECC 及 90.1-2013^ | 90.1-2013 |
| 夏威夷州 | 地方自治 | 90.1-2013 |
| 愛達荷州 | 2018 IECC 及 90.1-2016 | 90.1-2013 |
| 伊利諾伊州 | 2021 IECC 及 90.1-2019 | 90.1-2019 |
| 印第安納州 | 90.1-2007 | 90.1-2007 |
| 愛荷華州 | 2012 IECC 與 90.1-2010 | 90.1-2007 |
| 堪薩斯州 | 地方自治 | 無全州統一法規 |
| 肯塔基州 | 2012 IECC 與 90.1-2010 | 90.1-2007 |
| 路易斯安那州 | 2021 IECC 及 90.1-2019^ | 90.1-2016 |
| 緬因州 | 2015 IECC 與 90.1-2013 | 90.1-2013 |
| 馬里蘭州 | 2021 IECC 及 90.1-2019^ | 90.1-2019 |
| 麻省 | 2018 IECC 與 90.1-2016^ | 90.1-2019 |
| 密歇根州 | 2015 IECC 及 90.1-2013^ | 90.1-2013 |
| 明尼蘇達州 | 90.1-2019^ | 90.1-2019 |
| 密西西比州 | 無全州統一規範 | 無全州統一法規 |
| 密蘇里州 | 地方自治 | 無全州統一法規 |
| 蒙大拿州 | 2021 IECC 及 90.1-2019 | 90.1-2019 |
| Nebraska | 2018 IECC 及 90.1-2016 | 90.1-2013 |
| Nevada | 2018 IECC 及 90.1-2016 | 90.1-2013 |
| New Hampshire | 2018 IECC 與 90.1-2016^ | 90.1-2013 |
| New Jersey | 90.1-2019 | 90.1-2019 |
| New Mexico | 2021 IECC 及 90.1-2019^ | 90.1-2019 |
| New York | 2018 IECC 與 90.1-2016^ | 90.1-2016 |
| North Carolina | 2015 IECC 及 90.1-2013^ | 90.1-2010 |
| North Dakota | 地方自治 | 無全州統一法規 |
| Ohio | 2021 IECC 及 90.1-2019^ | 90.1-2016 |
| Oklahoma | 2006 IECC and 90.1-2004 | <90.1-2007 |
| Oregon | 90.1-2019 | 90.1-2019 |
| Pennsylvania | 2018 IECC 及 90.1-2016 | 90.1-2013 |
| Rhode Island | 2018 IECC 與 90.1-2016^ | 90.1-2013 |
| South Carolina | 2009 IECC 及 90.1-2007 | 90.1-2007 |
| South Dakota | 地方自治 | 無全州統一法規 |
| Tennessee | 2021 IECC and 90.1-2013 | 90.1-2007 |
| Texas | 2015 IECC 與 90.1-2013 | 90.1-2013 |
| Utah | 2021 IECC 及 90.1-2019^ | 90.1-2019 |
| Vermont | 2021 IECC 及 90.1-2019^ | 90.1-2019 |
| Virginia | 2021 IECC 及 90.1-2019^ | 90.1-2019 |
| Washington | 2018 Washington State Energy Code | 90.1-2019 |
| Tennessee | 2012 IECC 與 90.1-2010 | 90.1-2007 |
| Texas | 2015 IECC 與 90.1-2013 | 90.1-2013 |
| Utah | 2021 IECC 及 90.1-2019^ | 90.1-2019 |
| Vermont | 2018 IECC 與 90.1-2016^ | 90.1-2019 |
| Virginia | 2021 IECC 及 90.1-2019^ | 90.1-2019 |
| Washington | 2018 Washington State Energy Code | 90.1-2019 |
| West Virginia | 90.1-2013 | 90.1-2013 |
| Wisconsin | 2015 IECC 及 90.1-2013^ | 90.1-2010 |
| Wyoming | 地方自治 | 無全州統一法規 |
- ^ When an amendment impacting energy efficiency can be quantified using DOE Prototype Building Models, they were captured in the analysis.
- For states adopting both IECC and 90.1, the IECC code is usually analyzed as the state current code in this study except for states with extensive amendments to the IECC.
Design Guide Key Concepts for Classrooms
Designing an energy-efficient lighting control solution for classrooms involves strategic placement of occupancy sensors to ensure comprehensive coverage of the space.
Designing an energy-efficient classroom with occupancy sensors involves careful planning and strategic placement of sensors:
- Wall Occupancy/Vacancy Sensors: Install these sensors near the main entrance of the classroom. These sensors can detect when someone enters or leaves the room, and can automatically turn the lights on or off accordingly. They can also be manually controlled to turn all lights on or off.
- Ceiling Occupancy Sensors: These sensors should be installed in the center of the classroom, ensuring they have a clear view of the entire room to cover key areas such as the teacher’s desk, student desks, and any separate learning areas. They can detect any movement in the room, including minor movements such as students writing at their desks. When no movement is detected for a set period, the lights will automatically turn off.
- Additional Sensors for Specific Areas: If the classroom has specific areas such as a reading corner or a lab area, additional sensors may be needed. These sensors can control the lighting in these specific areas based on occupancy, ensuring that lights are not left on unnecessarily.
- Sensor Placement Considerations: Avoid placing sensors near air vents or other sources of movement that could trigger the sensor falsely. Also, ensure the sensors’ view is not obstructed by tall furniture or fixtures.
- Consideration of Natural Light: If the classroom has windows, the sensors should be programmed to consider the natural light coming into the room. This can help to further reduce energy consumption by utilizing natural light whenever possible.
- Integration with Manual Control: All occupancy/vacancy sensors should be integrated with manual controls. This allows teachers to manually turn off the lights during activities like video presentations, even if the room is occupied.
Featured Products & Solutions
Wall Sensor Switches
RZ020/021 Motion Sensor Switches
- 2-wire, 3-wire, 4-wires wiring options
- Occupancy, Vacancy, Manual ON/OFF
- Adjustive time delay and ambient light control
Multi-Location Wireless Wall Sensors
RZ020A/021A + RZ022W Kits
- Hardwired RZ021A/022A occupancy sensor switch
- Wireless companion switch (RZ022W) for multi-location control
Ceiling Occupancy Sensors
RZ036
- Hardwired occupancy sensors
- Auto ON, auto OFF
- Line voltage and Low voltage available
Core features included:
- Integrated manual ON/OFF control for all lighting
- Vacancy sensors (Manual ON only): Lights must be turned on manually only
- Adjustable time-delay, lighting is automatically turned full OFF after 15mins
- Additional: multi-location wireless kits to expand the control range without re-wring
- Additional: multiple wiring options available for both new constructions and retrofit projects.
Meets the Mandatory Provisions
IECC – 2011
C405.2.1 Occupant sensor controls
Occupant sensor controls shall be installed to control lights in the space.
C405.2.1.1 Occupant sensor control functions
- Manual on or partial on to no more than 50% power.
- Full off within 20 minutes after all occupants have left the space
- A manual control to turn off the lights.
ASHRAE 90.1 – 2022
9.4.1.1 a Local control
There shall be one or more manual lighting control device that provides ON and OFF control
of all lighting in the space.
9.4.1.1 b Restricted to manual ON
None of the lighting shall be automatically turned on
9.4.1.1 c Restricted to partial automatic ON
No more than 50% of the lighting power for the general lighting shall be allowed to be automatically turned on
** NOTE: At least one 9.4.1.1 b or 9.4.1.1 c shall be implemented.
For classrooms except shop classrooms (all other classrooms/lecture halls/training rooms):
9.4.1.1 h Automatic full OFF control
All lighting in the space shall be automatically shut off within 20 minutes of all occupants leaving the space
Title 24 – 2022
130.1 (a) Manual area controls.
Each area enclosed by ceiling-height partitions shall provide lighting controls that allow the lighting in that area to be manually turned on and off.
130.1 (c) Shut-OFF Controls.
Lighting shall be controlled with occupant sensing controls to automatically shut OFF all of the lighting in 20 minutes or less after the control zone is unoccupied that shall function either as:
- A. Occupant sensing controls (if 130.1(b) not required to have multi-level lighting controls); or
- B. Partial-ON occupant sensing controls, or
- C. Vacancy sensing controls, where all lighting responds to a manual ON input only
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