This European Standard establishes requirements for determining, in accordance with a standardized procedure, the noise (parameter: sound power level) emitted into the surrounding air by air conditioners, heat pumps or dehumidifiers with electrically-driven compressors. The frequency range used in this pre-standard is from 125 Hz to 4000 Hz. Three methods for determining the sound power levels are specified in order to avoid unduly restricting existing facilities and experience.
Registration number (WIID)
2949
Scope
This European Standard establishes requirements for determining, in accordance with a standardized procedure, the noise (parameter: sound power level) emitted into the surrounding air by air conditioners, heat pumps or dehumidifiers with electrically-driven compressors. The frequency range used in this pre-standard is from 125 Hz to 4000 Hz. Three methods for determining the sound power levels are specified in order to avoid unduly restricting existing facilities and experience.
