EN 12102:2008

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Klimageräte, Flüssigkeitskühlsätze, Wärmepumpen und Entfeuchter mit elektrisch angetriebenen Verdichtern zur Raumbeheizung und Kühlung - Messung der Luftschalllemissionen - Bestimmung des SchallleistungspegelsClimatiseurs, groupes refroidisseurs de liquide, pompes à chaleur et déshumidificateurs avec compresseur entraîné par moteur électrique pour le chauffage et la réfrigération - Mesure de bruit aérien émis - Détermination du niveau de puissance acoustiqueAir 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 level27.080Heat pumps91.140.30VLVWHPLVentilation and air-conditioning17.140.20Emisija hrupa naprav in opremeNoise emitted by machines and equipment23.120QDSUDYHVentilators. Fans. Air-conditionersICS:Ta slovenski standard je istoveten z:EN 12102:2008SIST EN 12102:2008en,fr,de01-september-2008SIST EN 12102:2008SLOVENSKI
STANDARDSIST ENV 12102:20011DGRPHãþD

EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 12102May 2008ICS 91.140.30; 17.140.20Supersedes ENV 12102:1996
English VersionAir conditioners, liquid chilling packages, heat pumps anddehumidifiers with electrically driven compressors for spaceheating and cooling - Measurement of airbone noise -Determination of the sound power levelClimatiseurs, groupes refroidisseurs de liquide, pompes àchaleur et déshumidificateurs avec compresseur entraînépar moteur électrique pour le chauffage et la réfrigération -Mesure de bruit aérien émis - Détermination du niveau depuissance acoustiqueKlimageräte, Flüssigkeitskühlsätze, Wärmepumpen undEntfeuchter mit elektrisch angetriebenen Verdichtern zurRaumbeheizung und Kühlung - Messung derLuftschalllemissionen - Bestimmung desSchallleistungspegelsThis European Standard was approved by CEN on 21 March 2008.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the CEN Management Centre or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as theofficial versions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2008 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 12102:2008: ESIST EN 12102:2008

Energy labelling application.22 A.1 General.22 A.2 Test procedure.22 A.3 Tolerances permitted on declared values.22 Annex B (normative)
Specific measurement for variable capacity units.23 B.1 General requirements.23 B.2 Test mode.23 B.3 Measurements process.23 Bibliography.24
1 Scope This European Standard 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, including water cooled multisplit systems, as described in EN 14511 and dehumidifiers as described in EN 810. It is emphasized that this measurement standard only refers to airborne noise.
This European 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 methods. This European 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. This European Standard gives two classes of measurements and results, according to the test environment:
- Class A measurements correspond to controlled working conditions (standard or application rating conditions). It is defined by the respect to the tolerances of Table 2. - Class B measurements correspond to the case where the range defined by the tolerances of Table 2 cannot be fulfilled.
In both classes, precision or engineering class acoustic methods should be applied. The choice of the acoustic measurement method is done in accordance with EN ISO 3740 and EN ISO 9614 depending on the type of surrounding acoustic fields (diffuse or free field, enclosed or open space), and the available instrumentation. Whatever the current working conditions, the reference of acoustic standard shall be reported, with explicit mention of its accuracy class. NOTE 1 The use of EN ISO 3746 and EN ISO 3747 as survey grade methods are not recommended due to the high level of uncertainties. Their use is only allowed for non controlled environments. Three methods for determining the sound power levels are specified in order to avoid unduly restricting existing facilities and experience.
- the first methodology is based on reverberation room measurement (see EN ISO 3741, EN ISO 3743 and EN ISO 3747 in some favourable cases when the engineering grade can be fulfilled);
- the second method is based on measurements in an essentially free field over a reflecting plane (see EN ISO 3744 and EN ISO 3745);
- the third method is based on sound intensity measurement (see EN ISO 9614) in preferably free field environment. NOTE 2 The references in this European Standard to EN ISO 3743 should be understood as EN ISO 3743-1 or EN ISO 3743-2 as well. The necessity to regulate the test conditions obviously leads to recommend test methods implemented in acoustically designed (enclosed) spaces, such as EN ISO 3741, EN ISO 3743, EN ISO 3745 and also EN ISO 9614 when implemented in enclosed space.
NOTE 3 Intensity measurement methods are quite robust and are well suited for tests to be done in environments without or with a light acoustic treatment (the better the acoustic treatment, the easier the implementation). 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 810:1997, Dehumidifiers with electrically driven compressors - Rating tests, marking, operational requirements and technical data sheet EN 14511-1:2007, Air conditioners, liquid chilling packages and heat pumps with electrically driven compressors for space heating and cooling – Part 1: Terms and definitions EN 14511-2, Air conditioners, liquid chilling packages and heat pumps with electrically driven compressors for space heating and cooling – Part 2: Test conditions EN 14511-3:2007, Air conditioners, liquid chilling packages and heat pumps with electrically driven compressors for space heating and cooling – Part 3: Test methods EN 14511-4, Air conditioners, liquid chilling packages and heat pumps with electrically driven compressors for space heating and cooling – Part 4: Requirements EN ISO 3740, Acoustics - Determination of sound power levels of noise sources - Guidelines for the use of basic standards (ISO 3740:2000) EN ISO 3741, Acoustics - Determination of sound power levels of noise sources using sound pressure - Precision methods for reverberation rooms (ISO 3741:1999) EN ISO 3743-1, Acoustics - Determination of sound power levels of noise sources - Engineering methods for small, movable sources in reverberant fields - Part 1: Comparison method for hard-walled test rooms (ISO 3743-1:1994) EN ISO 3743-2, Acoustics - Determination of sound power levels of noise sources using sound pressure - Engineering methods for small, movable sources in reverberant fields - Part 2: Methods for special reverberation test rooms (ISO 3743-2:1994) EN ISO 3744, Acoustics - Determination of sound power levels of noise sources using sound pressure - Engineering method in an essentially free field over a reflecting plane (ISO 3744:1994) EN ISO 3745, Acoustics - Determination of sound power levels of noise sources using sound pressure - Precision methods for anechoic and semi-anechoic rooms (ISO 3745:2003) EN ISO 3746, Acoustics - Determination of sound power levels of noise sources using sound pressure -Survey method using an enveloping measurement surface over a reflecting plane (ISO 3746:1995) EN ISO 3747, Acoustics - Determination of sound power levels of noise sources using sound pressure -Comparison method for use in situ (ISO 3747:2000) EN ISO 9614-1, Acoustics - Determination of sound power levels of noise sources using sound intensity - Part 1: Measurement at discrete points (ISO 9614-1:1993) SIST EN 12102:2008

where W is the sound power and W0 is the reference sound power = 1 pW (10-12 W) 3.2 Symbols 3.2.1 Non ducted units The suffix "i" denotes the indoor side of units and "o" the outdoor ones. LWi : sound power level radiated by the indoor side. LWo : sound power level radiated by the outdoor side. 3.2.2 Ducted units For ducted unit, the attended value is the sound power level travelling into the duct. It is assessed from the sound power level radiated by the air outlet opening of the duct, corrected by the "duct end correction" factor E (cf. 6.2.2). The suffix "d" denotes the "in duct" sound power level. LWd = sound power level travelling into the (discharge or suction) duct. For the case of a ducted indoor side of a split unit: LWdi = sound power level travelling into the (discharge or suction) duct of indoor unit. For the case of a ducted unit on the outdoor side: LWdo = sound power travelling into the (discharge or suction) duct of outdoor unit. The sound radiated by the casing does not require any specific suffix. Use the same symbols as in 3.2.1 to specify which unit is concerned, indoor or outdoor side. 3.3 Standard operating conditions The "standard operating conditions" are defined as the conditions for the operating points of the unit in accordance with the relevant parts of EN 14511 series and EN 810. The definitions given in these European Standards also apply. SIST EN 12102:2008

- temperature inlet/outlet
- volume flow
°C m3/s
± 0,3 K ± 3 %
Air
- dry bulb temperature
- wet bulb temperature
- static pressure difference
- volume flow
°C °C
Pa
m³/s
± 0,5 K ± 0,8 K
± 8 Pa (∆p ≤ 100 Pa) ± 8 % (∆p > 100 Pa) ± 10 % Refrigerant
- pressure at compressor outlet
- temperature
kPa °C
± 3 % ± 1 K Concentration
- heat transfer medium
%
± 6 % Electrical quantities
- voltage
V
± 1 % Rotation speed
min-1 ± 1 %
NOTE 1 Wet bulb temperature measurement involves the generation of air flow around a wet thermometer which may generate unwanted noise in the sound power measurement. It is then recommended to preferably determine relative humidity or dew point instead. NOTE 2 Suitable windshields are recommended to be fitted on microphones if they have to be affected by air velocity (above about 2 m/s) which may be produced by the appliance to be tested or by the laboratory facilities. Adjustment should be made to the measured sound pressure levels to compensate for any alteration in the sensitivity of shielded microphones. Above 10 m/s, windshields are usually not efficient enough and care must be taken to reduce the air velocity (by changing the location of microphones) or to change the type of windshields. NOTE 3 For intensity probes, windshields are recommended to be fitted on the probe if they have to be affected by air velocity because they are much more sensitive to that parameter. For instance, the maximum air velocity admitted by EN ISO 9614-1 is 2 m/s. SIST EN 12102:2008

Table 2 —
Permissible deviations from set values
Measured quantity Permissible deviation of the arithmetic mean values from set values Permissible deviations of individual measured values from set values Liquid
- inlet temperature
- ∆ T
- volume flow
± 1 K ± 1 K ± 5 %
± 1,5 K ± 1,5 K ± 10 %
Air
-inlet temperature (dry bulb or wet bulb)
- HR
- rpm of fan
± 2 K a ± 10 % ± 3 %
± 3 K ± 15 % ± 6 %
Airflow
- Static pressure difference
- Airflowb
-
± 5
...