At present, as the country develops better and better, people's living standard also improves greatly, so the requirement for indoor air quality is also getting higher and higher, because we spend most of our time indoors. The quality of indoor air directly determines our health. As a result, many people choose to install fresh air systems indoors and often choose a central fresh air system. The central fresh air system can pipe fresh air to each room, which is very convenient for ventilation. However, problems with circuitry, perforations, piping layout and ceilings cannot be avoided during installation. If you do all these things, will you accept them? If you do not know how to check the central fresh air system installation is qualified? Take a look at today's dry goods, Praetay will tell you how to check the installation.

1. Punching acceptance criteria: The location of holes shall be constructed in strict accordance with the requirements of the drawings. The position of the hole should be consistent with the direction of the pipe in the drawing. If changes are required, they shall be approved by Party A and made together with the designer. When opening the outer wall, should not destroy the main structure, should follow the principle of opening fewer doors, avoid the main wall.
2. Host acceptance standard: The lifting and fixing of fresh air system should be fixed with double nuts, that is, two nuts should be fixed and locked on the upper and lower ears of the host. Check whether the connection between the main engine and the duct is firm and whether there is a gap. The connection between the main engine and the hard gas pipe shall be made through a hose. Start up and test run, check whether the host is shaking, touch the connection between the host and the air duct, see if there is any air leakage, and listen to the noise with your ears. Check that the installation is correct and that enough space is maintained in the host location. The host machine shall not exceed the upper limit. Observe if the filter is easy to remove and install.
3. Air duct acceptance Standard When checking the air duct of the fresh air system, first check whether the outside surface of the air duct is cracked or scratched, and then check whether the connection of the air duct is firm. You can electrify a fresh blower to make it run, and then sprinkle soapy water over the air duct to check for leaks.
The air pipe leading to the outdoor shall be connected to the air pipe through the pipe cover or the pipe cover to prevent rain, dust, mosquitoes and other pipes from entering the fresh air system and affecting the air. Future effects.