Near offices or homes, noise is a hard requirement.
1. Sources
Fan airflow first, compressor and structure vibration second.
2. Measures
Low-speed high-flow fan, duct optimization, dampers, acoustic foam, night mode.
3. Results
Standard 50-55dB; custom silent down to 45dB at 1m.
| Type | Noise |
|---|---|
| Standard | 50-55dB |
| Silent custom | <=45dB |
| Night mode | -3-5dB |
HCK silent custom cabinet AC reaches 45dB or lower.