Noise control measures directly on the device
Main noise sources are the fan, compressor, piping and air ducts. At the fan blades, vortexes and pressure fluctuations. Slow-moving fans generate less noise. The speed should be controllable – it could, for example be reduced at night. What is important, on the cross section of the air ducts. Larger cross-sections to reduce the flow velocity of the air stream. The compressor, also called compressor, generates both air and solid-borne sound. It results in free vortex at the inlet and outlet openings and turbulence in the flow around obstacles and edges. solid-borne sound is avoided by a vibration-isolated installation, as well as by rubber buffer bearings, noise protection plugs and curved hoses. The most effective protection should provide a complete enclosure of the unit. Inlets and outlets are to be isolated acoustically.
Choosing the installation site
Ideally, air heat pumps as far as possible away to set up the neighborhood. The wind direction has an influence on the transmission of sound. The west-east direction is particularly critical. The orientation of the fan should not directly access the next residence, but at a 90 – degree angle done. In winter, the heat pump requires more current than in summer. Therefore also buzzing louder. The noise test in the winter is the safer option. A dialogue with the neighborhood is advised. A compliance with the noise standard is not always sufficient. Nevertheless, a annoying buzzing sound bring the neighborhood so on the palm that harmonious coexistence is no longer given.