The Difference between Fresh Air System and Central Air Conditioning!
Difference 1: The functions of the two are different.
Although both are members of the air system industry, the difference between the fresh air system and the central air conditioner is still very obvious.
First of all, from a functional point of view, the main function of the fresh air system is to ventilate the air, discharge the turbid indoor air outside, and then introduce fresh outdoor air, so as to realize indoor and outdoor air circulation. The main function of the central air conditioner is cooling or heating, which is to control and adjust the indoor air temperature, and finally make the indoor temperature reach the comfortable and comfortable range for the human body.
Simply put, the fresh air system is used to ventilate and improve air quality. The central air conditioner regulates the indoor temperature through cooling and heating.
Difference 2: The working principles of the two are different.
Let’s judge the different attributes of the two from the working principle. The fresh air system uses the power of the fan, and the technology of pipe introduction and exhaust to connect the outdoor air, form a circulation, and organize the movement of the indoor air flow, thereby improving the indoor air quality.
The central air conditioner uses the power of the fan to form indoor air circulation. The air passes through the cold source or heat source in the air conditioner to absorb or dissipate heat, changes the temperature, and sends it into the room to obtain the desired temperature.
Difference 3: The installation conditions of the two are different.
The ducted fresh air is the same as the central air conditioner. The installation needs to be carried out simultaneously with the house decoration. After the installation is completed, the air duct adopts a hidden design.
The installation of the ductless fresh air system is relatively simple. You only need to open the exhaust holes on the wall, and then fix the machine on the wall, which will not damage the house decoration. Compared with the embedded installation of the central air conditioner, this point has a great advantage.
In addition, unlike fresh air systems, where the installation conditions are almost zero, central air conditioners are not suitable for installation in all homes. For users with ultra-small apartments (<40㎡) or low floor heights (<2.6m), it is not recommended to install a central air conditioner, because a 3-horsepower air-conditioning cabinet is enough to meet the heating and cooling needs of the whole house.
Difference 4: The air ducts for the two are different.
Central air conditioners needs insulated air ducts for keeping the cold or warm air inside the ducts, reducing the temperature loss; while the fresh air systems don’t need insulated air ducts in most cases.
https://www.flex-airduct.com/insulated-flexible-air-duct-with-aluminum-foil-jacket-product/
https://www.flex-airduct.com/flexible-pvc-film-air-duct-product/
The central air conditioner is used in conjunction with the fresh air system to achieve twice the result with half the effort
Although there are many differences between the fresh air system and the central air conditioner, the actual uses of the two do not conflict, and the effect of using them together is better. Because the central air conditioner only solves the indoor temperature adjustment, and does not have the ventilation function. At the same time, it is often necessary to close the doors and windows to turn on the air conditioner. In a closed space, problems such as accumulation of carbon dioxide concentration and insufficient oxygen concentration are prone to occur, which will affect health. The fresh air system can ensure the air quality in the confined space and provide users with clean and fresh air at any time, and its purification module can also provide a certain air purification effect. Therefore, only when the central air conditioner complements the fresh air system can the indoor environment be comfortable and healthy.
Post time: Apr-13-2023