The perception that some new air conditioner (AC) units are noisier compared to older ones can be attributed to several factors:
Advancements in Technology: Modern AC units often incorporate new technologies and features that prioritize energy efficiency and performance. While these advancements have numerous benefits, they can sometimes result in increased noise levels. For example, high-efficiency compressors or fans may generate more noise during operation.
Compact Design: Newer AC units are often designed to be more compact and aesthetically pleasing. This can lead to a reduction in the size of internal components, including fans and motors. Smaller components may need to operate at higher speeds to deliver the desired airflow, resulting in increased noise levels.
Reduced Sound Insulation: In an effort to reduce costs or improve efficiency, some manufacturers may use lighter or thinner materials for AC unit construction. These materials may not provide the same level of sound insulation as older, heavier components, allowing more noise to escape from the unit.
Higher Fan Speeds: To provide faster and more efficient cooling, newer AC units may incorporate variable speed fans or multiple fan settings. While these features offer benefits such as improved airflow control and better temperature distribution, they can result in increased noise when the fan operates at higher speeds.
Improved Sound Perception: It is also worth noting that advancements in other areas of technology, such as reduced noise levels in household appliances or quieter living environments, may make us more sensitive to even minor noises. Thus, even if the newer AC units are not significantly louder than older models, they may be perceived as such due to the overall reduction in background noise.
It is important to consider that not all new AC units are noisy, and there are still many models available that prioritize quiet operation. When selecting an AC unit, it is recommended to review the manufacturer's specifications, including the noise levels indicated in decibels (dB), and read user reviews to gain insights into the unit's noise performance. Additionally, consulting with HVAC professionals or contacting manufacturers directly can provide more information about the noise levels and features of specific AC models.