Obviously, this control belongs to the variable air volume control (VAV later on control see below), this control is not a lot of the current application, an important reason is that CO2 concentration controller products are not widely available (only a few manufacturers) at the same time, investment demand for new air unit weight of this control method, which requires a detailed analysis of the overall economic efficiency. The safe operation of the construction unit recommendation 2.1 of freezing winter construction to issue new air handling units seriously, pay attention to all the air-conditioning equipment and pipelines of antifreeze. Note that when the outdoor temperature is flush pipeline pressure test, must ensure that the system is thoroughly vented without leaving a security risk after washing. With new air unit temporary heating should be the normal procedure construction inspection, if there is no self-control measures and staff management, do not recommend fresh air equipment for temporary heating carbon dioxide (CO2) concentration control is usually the maximum air flow of new air handling units is based on meeting the health requirements and design ( except to bear the load of the DC-style indoor unit), then press the number of rooms at full consideration. In actual use, the room number is not always full, and when a small number of people, fresh air can be reduced in order to save energy, this method is particularly suitable for certain uses fresh air plus air unit coil system of office building space small meeting rooms and other places use. In order to guarantee the basic quality of indoor air fresh air units, usually measure the indoor CO2 concentration method to measure the new wind generating units, as shown in Figure 4-43. CO2 concentration controller are located in each room to control the degree of opening of new wind electric air manifold on the new air unit choice, but, in order to prevent the system static pressure is too high, set the static pressure controller controls the fan speed on the total air pipe . Therefore, this will not only reduce the load of new air-cooled, and fan energy consumption will decline. The new air unit weight, Xinzhou new wind generating units, Rui Xincheng air conditioning (view) provided by the Texas Air Conditioning Equipment Co., Ltd. Rui Xincheng. Rui Xincheng Texas Air Conditioning Equipment Co. (www.dzrxckt.com) is a professional "axial fans, mixed flow fans, roof fan, Francis fan, fire temperature exhaust fan, the wind," the company. Since its inception, we adhere to the "good faith, sound management" approach, the courage of healthy competition in the market, so that the "Rui Xincheng" brand has a good reputation. We adhere to the "service first, customer first" principle, so 瑞鑫诚 air conditioning won the trust of customers all of the fan, ventilation equipment, and establish a good corporate image. Special Note: This information is for reference only pictures and information, please contact us to obtain the most accurate information, thank you!