Over deze norm
|Commissie||Koelinstallaties en warmtepompen|
This document establishes requirements for determining, in accordance with a standardized procedure, the sound power level emitted into the surrounding air by air-conditioners, heat-pumps, liquid chilling packages with electrically driven compressors when used for space heating and/or cooling, as described by the standards EN 14511 and dehumidifiers as described by the standard EN 810. It is emphasized that this measurement standard only refers to airborne noise. This standard applies to factory-made units of either fixed capacity or variable capacity by any means. It covers: - packaged units, single split and multisplit systems, except water cooled multisplit systems, - air-to-air air conditioners which evaporate the condensate on the condenser side, - chillers, shelters, roof-tops. - inverters. In the case of units consisting of several parts, this standard applies only to those designed and supplied as a complete package, except for liquid chilling packages with remote condenser. This standard does not cover: - units having their condenser cooled by air and by the evaporation of external additional water, - heat pumps for sanitary hot water, although some definitions can be applied to these units, - units using transcritical cycles, e.g. with CO2 as refrigerant, - installations used for heating and/or cooling of industrial processes. This standard offers ways to determine the sound power level of units. Some of them are specifically adapted to provide results with low uncertainties, by using laboratory class acoustic methods and highly controlled working conditions. Those measurements are suitable for certification, labelling and marking purposes. In some cases, the target and/or the environment of the measurements do not allow such precision-class results. This standard also offers ways to assess sound power levels with acceptable accuracy even though acoustic methods and/or working conditions are not laboratory-type, e.g. in situ or quality control measurements.
|Nederlandse titel||Luchtbehandelingsapparatuur, koeleenheden voor vloeistof en warmtepompen met elektrisch aangedreven compressoren voor verwarming en koelen - Meting van luchtgeluid - Bepaling van het geluidvermogenniveau|
|Engelse titel||Air conditioners, liquid chilling packages, heat pumps and dehumidifiers with electrically driven compressors for space heating and cooling - Measurement of airborne noise - Determination of the sound power level|