Application of CO2 sensor in combined air conditioning unit

Application of CO2 sensor in combined air conditioning unit

Carbon dioxide gas sensor, using the principle of non dispersive infrared (NDIR) to detect the presence of CO2 in the air, has good selectivity and oxygen free dependence, and has a long life. Built in temperature compensation, the sensor is a high-performance sensor which combines mature infrared absorption gas detection technology with precise optical path design and excellent circuit design. The carbon dioxide sensor monitors the indoor carbon dioxide concentration. When the carbon dioxide concentration exceeds our set value, the fresh air valve will be opened automatically to increase the outdoor fresh air inlet air volume. So that our indoor carbon dioxide concentration reaches our set value.

The concentration of carbon dioxide not only directly affects the indoor air quality, but also directly reflects the number of people and activities in the air-conditioning environment. At the same time, it means that there is enough fresh air in the current environment, which greatly reduces the risk of building syndrome.

The CO2 concentration index can also reflect the approximate state of other harmful gases in the current environment to a certain extent. Therefore, CO2 sensor plays an important role in the control of heating and ventilation system.

The use of carbon dioxide sensors can control the amount of fresh air according to the needs, meet the green building specifications, and achieve energy saving. Therefore, the monitoring of air quality cannot be separated from the application of high-precision CO2 sensors.

In addition, the energy saving of heating and ventilation system is closely related to the application of CO2 sensor. Through the CO2 sensor, the heating and ventilation system can monitor the indoor CO2 concentration in real time, and timely introduce fresh air from the outdoor according to the current CO2 concentration, without keeping fresh air all the time, thus avoiding unnecessary energy consumption.