#Product Trends
Complying with Title 24：Advanced CO2 Sensor for Demand Control Ventilation System
High-Precision CO2 Sensor Compliant with Title 24
Title 24, California Building Energy Efficiency Standards, is a set of energy efficiency standards, which establishes multiple requirements for building design and construction, aiming to reduce energy consumption and improve indoor air quality (IAQ).
It is worth noting that in the field of indoor ventilation, Title 24 mandates the application of the DCV system in certain spaces and presents specific requirements for the CO2 sensors incorporated within the DCV system.
“CO2 sensors shall be certified by the manufacturer to be accurate within plus or minus 75 ppm at a 600 and 1000 ppm concentration when measured at sea level and 25℃ factory calibrated, and certified by the manufacturer to require calibration no more frequently than once every 5 years. Upon detection of sensor failure, the system shall provide a signal which resets to supply the minimum quantity of outside air to levels required by Section 120. 1(b)2 to the zone serviced by the sensor at all times that the zone is occupied.”
Based on the rules outlined in Title 24, CO2 sensors should meet the following five key points:
1)CO2 sensors in the DCV system should be highly accurate, meeting the accuracy requirements within the concentration range of 600 ppm to 1000 ppm, with a deviation not exceeding +/- 75 ppm.
2)CO2 sensors in DCV should be free from frequent calibration and maintain stability for at least five years.
3)CO2 sensors should have a long lifespan, consistent with a fresh air system.
4)CO2 sensors should provide continuous monitoring and measurement capabilities.
5)CO2 sensors should be cost-effective to be integrated into the DCV system on a large scale.
Specializing in smart gas sensors and superior gas analyzers, Cubic has established a gas sensing technology platform based on NDIR technology to provide CO2 sensors with the advantages of high accuracy, long lifespan, auto-zero-calibration mechanism, and continuous monitoring capability. In compliance with Title 24 regulations and requirements for fresh air systems, Cubic has specially designed the NDIR CO2 Sensor, CM1106H-NS, which can be used in DCV systems to realize meticulous control to improve indoor air quality and energy efficiency.
CM1106H-NS, developed from NDIR technology, is ideal for the DCV system, which stands at the forefront of technological innovation. It is designed with specific infrared wavelengths and exhibits the critical advantage of high accuracy at ± (30ppm+3% of reading) @ -10°C~50°C, 0-85%RH), ensuring excellent performance in diverse environments.
CM1106H-NS sensor is developed from NDIR technology, leveraging Cubic's extensive 20-year expertise in the field. Adopted with matrix calibration at low (-10℃), normal (25℃), and high (40℃) temperatures and multiple points of CO2 concentration, the CM1106H-NS sensor ensures high accuracy across a wider temperature and measurement range. Additionally, selecting a strict component for the NDIR CO2 sensor guarantees a 15-year lifespan. Based on Cubic’s auto-zero-calibration mechanism, CM1106H-NS can autonomously maintain accuracy across its entire lifetime without frequent manual calibration. Besides, CM1106H-NS also features continuous monitoring of CO2 concentration levels to provide real-time concentration data to the DCV system.
Conclusively, with a 20-year dedication to gas sensing technology, Cubic, as a leading manufacturer, will pay continuous attention to policy shifts in Title24 regulations to provide qualified and reliable gas sensing solutions to customers all over the world. Cubic will also keep to devote the best efforts in the DCV and HVAC application for more influential technological innovations.
