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Do you know the air outlet and return air outlet of the air conditioner

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Do you know the air outlet and return air outlet of the air conditioner?

There are two types of air vents for air conditioning: air outlets and return air vents. As the name implies, the air outlet of the air conditioner blows out the air-conditioning, and the return air outlet of the air conditioner absorbs indoor air. The small hole next to the air-conditioning vent is a new air vent. The new air vent is small. It is undoubtedly the new air vent that is installed on the wall in each room or is in a straight line with the air-conditioning air outlet. The fresh air outlet is generally grille type, installed on the external wall, and its main function is to exhaust the dirty air in the room to the outdoors. Axial fans are often used because the machine opening is circular, and iron ducts are generally used to connect them for ease of construction. The indoor installation location is mostly in a corner not far from the machine room.
1. Diffuser shape The air outlet of the air conditioner is generally a square diffuser, which is multi-layered and detachable in a square row. It is generally connected with a fireproof canvas without a filter. The surface will be very clean; there may be water droplets hanging when cold air is sent. On the top! Air conditioning return air vents are mostly rectangular, also called single (double) layer louvered air vents, with filters, if not often cleaned, there will be black dust on the surface of the air vents accumulating in the corners, which is easy to distinguish; return air vents The main function is to suck back dirty air.

2. The size of the indoor unit. Generally, only the air-conditioning vents can be seen indoors, so the size of the air-conditioning vents is very important. If the design is unreasonable, it will cause visual pollution in the follow-up and bring a lot of trouble to use. The air outlet of the air conditioner needs to be flexibly adapted according to the home decoration during the actual design and installation process. The size of the outlet/return air outlet depends on the capacity of the indoor unit.

3. The area of ​​the air outlet is different. If the size of the air outlet is too large and the duct is too long, the airflow speed will decrease, which will affect the effect of the air conditioner; if the air conditioner size is too small, the airflow speed will increase, causing the wind to blow directly Discomfort caused by the human body may also cause excessive noise. There are three main ways to send and return air from the air conditioner: side delivery and bottom return, bottom delivery and side return, and side delivery and side return. Since the air speed of the air-conditioning return air outlet is generally greater than that of the air outlet, when the air volume is constant, the area of ​​the air return outlet is larger than that of the air outlet.

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