As the temperature gradually rises, the frequency of air conditioning is increasing, but the generation of air conditioning noise is inevitable. This is a very serious problem. So how do you reduce the noise generated by air conditioning? Next, follow the decoration home network Xiaobian to understand the cause of air conditioning noise, how to reduce the central air conditioning noise generated related content!
China has strict limits on the central air-conditioning noise standards. For split-unit air conditioners with a cooling capacity of 2500-4500W, the indoor unit noise is less than 48db, and the outdoor unit noise is less than 58db. According to the survey, the noise value of normal sleep and rest is not disturbed. The daytime is 50db and the nighttime is 45db. Many air conditioner users complain that the household air conditioner is noisy and has affected the normal rest. In fact, if you want to reduce the air conditioning noise, there are still ways. Can be followed.
1. Central air conditioning noise standard - noise reduction selection is critical
The performance of air conditioners varies, and the noise values ​​are not the same. Users should look at the noise level of air conditioners when choosing, and try to choose products with low noise and good mute effect. Interested parties can consult the Oaks staff.
2. Central air conditioning noise standard - anti-vibration and noise reduction work during installation
It is well known that sound is generated by vibration, so it is necessary to start from vibration prevention in order to reduce noise. At present, many manufacturers adopt anti-vibration and noise-reduction measures for air conditioners when designing and installing central air conditioners. Transverse scroll compressors with low noise and low vibration should be used, and soundproof covers should be used. Damping bases should be used for compressors and built-in pumps. 13mm thick glass wool sound absorbing composite material in the panel; the fan adopts high-efficiency and low-noise airfoil blade, the fan speed is controlled below 720r/min, and the shifting speed is adopted to reduce nighttime noise; all the pipes and brackets in the unit are By adopting measures such as vibration reduction, noise can be greatly reduced by the above means, creating a relatively quiet living environment for people.
When installing the central air conditioning unit in the home, the outdoor unit should be installed as far as possible on the floor. The base should be cushioned with vibration damping block or rubber of 10 to 15 mm thick to keep the unit stable; all the pipes connected to the outside should be equipped with vibration-damping hose. The air in and out should be smooth, reduce the backflow, and if the exhaust port needs to be connected to the short pipe, it should contact the manufacturer. When installing the central air conditioner, the owner should remind the installation team to do the vibration reduction work and supervise it.
3. Central air conditioning noise standard - specific analysis of specific problems
Many central air conditioners do not meet the indoor noise standard requirements, so pay more attention to the installation, and take certain measures when necessary.
1. Under the central air-conditioning indoor unit of the household, a 25mm thick vibration-damping sound-absorbing board should be placed, and the vibration-damping bracket should be used. The board should be larger than the base area of ​​the unit to reduce the vibration of the unit.
2. If the noise is too large, you can set the air supply and return air silencer static pressure box.
3. Control the internal wind speed of the connecting duct to be no more than 3m/s; the length between the three-way, elbow, valve and other parts of the duct should have a linear distance of 3 to 5 times the diameter of the duct.
4, central air-conditioning indoor unit and air supply, should not be installed in the position where the user often stays, preferably deviated, installed in the aisle and ceiling, beautiful and human body perception of low noise.
The above is a detailed answer to the reasons for the noise generated by the central air-conditioning. I don't know if you are satisfied with the introduction of the decoration home network. If you want to know more about the air conditioning noise related content, please continue to pay attention to our selection manual section!
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