Bsi bs en 13141 11 2015

BS EN 13141-11:2015 BSI Standards Publication Ventilation for buildings — Performance testing of components/products for residential ventilation Part 11: Supply ventilation units BS EN 13141-11:2015 BRITISH STANDARD National foreword This British Standard is the UK implementation of EN 13141-11:2015 The UK participation in its preparation was entrusted to Technical Committee RHE/2, Ventilation for buildings, heating and hot water services A list of organizations represented on this committee can be obtained on request to its secretary This publication does not purport to include all the necessary provisions of a contract Users are responsible for its correct application © The British Standards Institution 2015 Published by BSI Standards Limited 2015 ISBN 978 580 79754 ICS 91.140.30 Compliance with a British Standard cannot confer immunity from legal obligations This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 May 2015 Amendments issued since publication Date Text affected BS EN 13141-11:2015 EN 13141-11 EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM May 2015 ICS 91.140.30 English Version Ventilation for buildings - Performance testing of components/products for residential ventilation - Part 11: Supply ventilation units Ventilation des bâtiments - Essais de performance des composants/produits pour la ventilation des logements Partie 11 : Unités de ventilation par insufflation Lüftung von Gebäuden - Leistungsprüfung von Bauteilen/Produkten für die Lüftung von Wohnungen - Teil 11: Zuluftsysteme This European Standard was approved by CEN on 16 April 2015 CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC 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 translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels © 2015 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members Ref No EN 13141-11:2015 E BS EN 13141-11:2015 EN 13141-11:2015 (E) Contents Page Foreword Introduction Scope Normative references Terms and definitions Symbols and abbreviations Declaration of intended use 6.1 6.2 6.3 6.3.1 6.3.2 6.4 6.4.1 6.4.2 6.4.3 6.5 Performance testing of aerodynamic characteristics General External leakage 10 Airflow 11 Un-ducted room unit 11 Ducted unit 11 Acoustic characteristic 11 General 11 Un-ducted unit 12 Ducted unit 14 Electrical power input 17 7.1 7.2 7.3 7.4 7.5 7.6 7.7 Test report 18 Presentation of results 18 General information 18 Product specifications 18 External leakage 19 Airflow 19 Acoustic characteristics 20 Electrical power input 20 Annex A (informative) Typical applications 21 Annex B (informative) Sound insulating box 24 Annex C (informative) Acoustic box 25 Annex D (normative) Pressure leakage test method 26 Bibliography 27 BS EN 13141-11:2015 EN 13141-11:2015 (E) Foreword This document (EN 13141-11:2015) has been prepared by Technical Committee CEN/TC 156 “Ventilation for buildings”, the secretariat of which is held by BSI This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by November 2015, and conflicting national standards shall be withdrawn at the latest by November 2015 Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights EN 13141 consists of the following parts, under the general title Ventilation for buildings ― Performance testing of components/products for residential ventilation: — Part 1: Externally and internally mounted air transfer devices — Part 2: Exhaust and supply air terminal devices — Part 3: Range hoods for residential use — Part 4: Fans used in residential ventilation systems — Part 5: Cowls and roof outlet terminal devices — Part 6: Exhaust ventilation system packages used in a single dwelling — Part 7: Performance testing of a mechanical supply and exhaust ventilation units (including heat recovery) for mechanical ventilation systems intended for single family dwellings — Part 8: Performance testing of un-ducted mechanical supply and exhaust ventilation units (including heat recovery) for mechanical ventilation systems intended for a single room — Part 9: Externally mounted humidity controlled air transfer device — Part 10: Humidity controlled extract air terminal device — Part 11: Supply ventilation units According to the CEN/CENELEC Internal Regulations, the national standards organisations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom BS EN 13141-11:2015 EN 13141-11:2015 (E) Introduction The position of this document in the field of standards for the mechanical building services is shown in Figure BS EN 13141-11:2015 EN 13141-11:2015 (E) Figure — Position of EN 13141-11 in the field of the mechanical building services BS EN 13141-11:2015 EN 13141-11:2015 (E) Scope 1.1 This European Standard specifies aerodynamic, acoustic and electrical power performance test measurements for — un-ducted continuous supply ventilation units in a single room; — ducted continuous supply ventilation units in a single room; — un-ducted supply air ventilation units in a single room; — ducted supply air ventilation units in a single room; — centralised unit for whole dwelling; used in residential ventilation In general such units contain the following elements: — fan; — air filter; — control system 1.2 This European Standard does not cover the following: — grilles, air delivery or air supply devices when the unit is ducted; — sound attenuation; — any heating devices or pre-heaters 1.3 Safety requirements are given in EN 60335-2-80:2003 and its A2:2009 [2] Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application For dated references, only the edition cited applies For undated references, the latest edition of the referenced document (including any amendments) applies EN 306, Heat exchangers - Methods of measuring the parameters necessary for establishing the performance EN 12792:2003, Ventilation for buildings - Symbols, terminology and graphical symbols EN 13141-4:2011, Ventilation for buildings - Performance testing of components/products for residential ventilation - Part 4: Fans used in residential ventilation systems EN ISO 717-1, Acoustics - Rating of sound insulation in buildings and of building elements - Part 1: Airborne sound insulation (ISO 717-1) EN ISO 3741, Acoustics - Determination of sound power levels and sound energy levels of noise sources using sound pressure - Precision methods for reverberation test rooms (ISO 3741) EN ISO 3743-1, Acoustics - Determination of sound power levels and sound energy levels of noise sources using sound pressure - Engineering methods for small movable sources in reverberant fields - Part 1: Comparison method for a hard-walled test room (ISO 3743-1) BS EN 13141-11:2015 EN 13141-11:2015 (E) 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) EN ISO 3744, Acoustics - Determination of sound power levels and sound energy levels of noise sources using sound pressure - Engineering methods for an essentially free field over a reflecting plane (ISO 3744) EN ISO 3745, Acoustics - Determination of sound power levels and sound energy levels of noise sources using sound pressure - Precision methods for anechoic rooms and hemi-anechoic rooms (ISO 3745) EN ISO 5135, Acoustics - Determination of sound power levels of noise from air-terminal devices, air-terminal units, dampers and valves by measurement in a reverberation room (ISO 5135) EN ISO 5136, Acoustics - Determination of sound power radiated into a duct by fans and other air-moving devices - In-duct method (ISO 5136) 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) EN ISO 9614-2, Acoustics - Determination of sound power levels of noise sources using sound intensity - Part 2: Measurement by scanning (ISO 9614-2) EN ISO 9614-3, Acoustics - Determination of sound power levels of noise sources using sound intensity - Part 3: Precision method for measurement by scanning (ISO 9614-3) EN ISO 10140-2, Acoustics - Laboratory measurement of sound insulation of building elements - Part 2: Measurement of airborne sound insulation (ISO 10140-2) EN ISO 5801, Industrial fans - Performance testing using standardized airways (ISO 5801) Terms and definitions For the purposes of this document, the terms and definitions given in EN 12792:2003 and the following apply 3.1 test voltage voltage to be used for supplying the components during the testing [SOURCE: EN 13141-7:2010 [1], definition 3.1.9] 3.2 fan unit casing incorporating a fan and provided with spigots [SOURCE: EN 12792:2003, definition 164] 3.3 external leakage qve leakage to or from the air flowing inside the casing of the unit to or from the surrounding air [SOURCE: EN 13141-7:2010 [1], definition 3.1.1] BS EN 13141-11:2015 EN 13141-11:2015 (E) 3.4 declared maximum air volume flow qvd air volume flow corresponding to the declared total pressure ptUd of the unit at the maximum setting for standard air conditions (20 °C, 101 325 Pa) Note to entry: Not including any boost function used for short time duty (for example purge ventilation) Note to entry: For category A units ptUd = Note to entry: qvd is expressed in m ⋅s −1 −1 or l⋅s 3.5 electric power input PE average electrical power input to the equipment within a defined interval of time obtained from: — the power input of the fan; — the power input of all control and safety devices of the equipment Note to entry PE is expressed in watts 3.6 reference air volume flow qvref airflow at 70 % of qvd Note to entry: selected If the unit’s air volume flow cannot be adjusted to reach (qvref, ptUd/2), the closest value above 70 % is Note to entry: qvref is expressed in m ⋅s −1 −1 or l⋅s 3.7 fan pressure pF pressure increase induced by the fan given as the difference of outlet and inlet total pressure Note to entry: pF is expressed in Pa [Source: EN 13141-4:2011, definition 3.1 with expression of the unit modified] 3.8 declared total pressure ptUd pressure used to set the maximum air volume flow corresponding to 100 Pa, or to a lower total pressure if the intended use declared by the manufacturer is less than 100 Pa Note to entry: ptUd is expressed in Pa 3.9 habitable room room used for purposes such as living rooms, bedrooms or study rooms 3.10 wet room room used for domestic activities such as kitchens, utility rooms, bathrooms or sanitary accommodation BS EN 13141-11:2015 EN 13141-11:2015 (E) Figure gives an example of test installation for measuring the sound power level at the spigots of the unit Key unit under test insulated rigid duct which is the same diameter as the spigot (to reduce noise emission), length = 1,5 m test room distance m minimum from all surfaces Figure — Example of test installation for measuring the sound power level at the spigots of the unit For units with multiple outlets, only one measurement for the outlets of the same diameter shall be done with all the duct connections connected to the room Then the sound power level at each duct connection shall be calculated from the global result and assuming that the connections are equivalent For multiple outlets units with several diameters of spigot, one test shall be made for each type of outlet 16 BS EN 13141-11:2015 EN 13141-11:2015 (E) An example of a test installation for a unit with outlets with identical diameter is given in Figure Key unit under test insulated rigid duct which is the same diameter as the spigot (to reduce noise emission) length = 1,5 m test room distance m minimum from all surfaces Figure — Example of a test installation for a unit with two outlets with identical diameters Whatever the number of outlets, if their diameter is identical, the sound power level of a single duct connection shall be calculated from the global sound power level of the N identical duct connections using the following formula: LWsingle = LWglobalN + 10lg(1 N) The duct end correction shall be applied using the single connection section and not the sum of sections discharging in the reverberation room The fan unit shall be positioned in the test room according to the manufacturer specification in such a way that the noise source is as far as possible from all axis of symmetry of the room and walls Where the manufacturer specifies an anti-vibration material then the installation shall include it The installation specifications of the fan unit shall be noted down in the test report NOTE 6.5 Most usually the fan unit is suspended Electrical power input The electric power input PE of a unit shall be measured in several settings when possible In active setting, the unit is connected to the mains power source and is providing the intended service This means the controls system is operating and the unit provides suitable ventilation rates according to the control strategy The electric power input PE shall be measured according to EN 13141-4 during the test specified in 6.3 and shall be reported 17 BS EN 13141-11:2015 EN 13141-11:2015 (E) If the unit includes a setting in which the fans are not operating and control components are still active (necessary for function of the unit internal or external), then the electric power input shall also be measured in this setting If the unit can be switched off manually or with any remote control system and if the end of this setting is also given by a manual action, the electric power input shall be measured with the mains power in operation 7.1 Test report Presentation of results Fan performance results shall be presented according to EN ISO 5801 7.2 General information The test report shall include at least the following information: a) name and address of testing laboratory and location where the test is carried out when different from the address of the testing laboratory; b) unique identification of test report (such as serial number) and of each page, and total number of pages of the test report; c) name and address of the client; d) description and identification of the test item; e) date of receipt of test item and date(s) of performance of test; f) identification of the test specification or description of the procedure; g) description of the sampling procedure, where relevant; h) any deviations, additions to or exclusions from the test specification, and any other information relevant to a specific test; i) identification of any non-standard test method or procedure utilized; j) measurements, examinations and derived results, supported by tables, graphs, sketches and photographs as appropriate, and any failures identified; k) a statement on measurement uncertainty (where relevant); l) a signature and title or an equivalent marking of person(s) accepting technical responsibility for the test report and date of issue; m) a statement to the effect that the results are only for the items tested; n) 7.3 a reference to this European Standard (i.e EN 13141-11) Product specifications The product specification shall be given in the test report as follows: — 18 maximum air volume flow: qvd in m ⋅s −1 −1 or l⋅s BS EN 13141-11:2015 EN 13141-11:2015 (E) 7.4 External leakage The test report shall include the following: — all operating details not specified in this European Standard, or regarded as optional, together with details of any incidents which may have influenced the test result(s); — any unusual features (anomalies) observed during the test; — external leakage air volume flow qve at over and/or under pressure; — comparison of qve to the declared maximum air volume flow of the unit as a percentage 7.5 Airflow The test report shall include the following: a) general: — all operating details not specified in this European Standard, or regarded as optional, together with details of any incidents which may have influenced the test result(s); — any unusual features (anomalies) observed during the test; b) un-ducted room unit: — measurements at + 20 Pa and - 20 Pa; — measurement of the airflow at no pressure (0 Pa); — minimum air volume flow; — maximum air volume flow; — reference air volume flow (or closest to if possible); c) ducted unit: — total pressure of the unit ptu at different air volume flows qv and at different fan control adjustments for at least the test voltage; — description of the connection box if relevant 19 BS EN 13141-11:2015 EN 13141-11:2015 (E) 7.6 Acoustic characteristics The test installation and conditions shall be clearly described in the test report All the information concerning the measurements shall be recorded according to the specifications of the standard chosen for the tests According to the measured characteristics, the test report shall include the following: — overall sound power levels LW and A-weighted LWA; — sound power levels in octave bands between 125 Hz and 000 Hz; — declared maximum air volume flow qvd and/or the following: — overall sound insulation Dn,e,w and Dn,e,w + Ctr, calculated according to EN ISO 717-1; — sound insulation Dn,e in octave bands between 125 Hz and 000 Hz 7.7 Electrical power input The test report shall include the following: — all operating details not specified in this European Standard, or regarded as optional, together with details of any incidents which may have influenced the test result(s); — any unusual features (anomalies) observed during the test; — electric power input PE 20 BS EN 13141-11:2015 EN 13141-11:2015 (E) Annex A (informative) Typical applications Figure A.1 to Figure A.3 give examples of typical applications Figure A.1 gives examples of typical applications for single room supply ventilation units Figure A.1 a) shows whole dwelling ventilation through the use of single room units installed in the habitable rooms Figure A.1 b) shows a single room supply ventilation unit ventilating a single room a) for multi-room b) for single room Key habitable room unit wet room internally mounted air transfer device habitable room externally mounted air transfer device wet room Figure A.1 — Example of typical applications for supply ventilation unit Figure A.2 gives an example of a centralised supply ventilation unit It shows multiple rooms being ventilated by a centralised unit The unit is supplying air directly in to the habitable rooms and ventilating the entire dwelling 21 BS EN 13141-11:2015 EN 13141-11:2015 (E) Key habitable room unit wet room internally mounted air transfer device habitable room externally mounted air transfer device wet room Figure A.2 — Example of a typical application for multiple room supply ventilation unit Figure A.3 gives an example of a centralised supply ventilation unit installed in the roof void of a house, providing whole dwelling ventilation 22 BS EN 13141-11:2015 EN 13141-11:2015 (E) Key supply fan internally mounted air transfer device externally air transfer device Figure A.3 — Example of typical application for roof void and whole house ventilation 23 BS EN 13141-11:2015 EN 13141-11:2015 (E) Annex B (informative) Sound insulating box The sound insulating box shall be internally lined with sound absorbing material, in order to eliminate the influence of the side (inner or outer) which is not being measured Particular attention should be paid to seal the gaps between the unit under test and the box The insertion loss of the insulating walls of the box shall be at least 15 dB in each one-third octave band of measurement, to make negligible the sound radiated by the box It is possible to evaluate the insertion loss of the insulating box by a comparison of sound power measurement of a sound source in the test room with and without the insulating box (in this case the sound source, i.e a loudspeaker; shall be placed in the box with the unit opening closed and sealed) The measurement of radiated sound power from the sound source and from the box shall be made according to the relevant standard for the test room 24 BS EN 13141-11:2015 EN 13141-11:2015 (E) Annex C (informative) Acoustic insulation box The purpose of the acoustic insulation box is to give a way to attenuate the sound radiated by the discharge or suction side respectively of the un-ducted unit, when the measurement is performed on the suction or discharge side respectively The insertion loss of the insulating walls of the box shall be at least 15 dB in each one-third octave band of measurement, to make negligible the sound radiated by the box walls It is possible to evaluate the insertion loss of the insulating box according to EN ISO 11546-1 [3] The design shall allow the air to go in or out the box The use of chicanes is recommended to keep a high level of sound insulation, despite the air openings 25 BS EN 13141-11:2015 EN 13141-11:2015 (E) Annex D (normative) Pressure leakage test method The external leakage test shall be carried out by blanking off and sealing all ducts and connecting a fan to the supply side of the device as shown in Figure D.1 Static pressure tapping’s are located on a blanking off plate on the inlet side of the device and are connected to a pressure measuring instrument The external leakage flow rates in the casing at over and under pressure are established with suitable air flow measuring equipment The accuracy of the measured values shall be kept within ± % for the flow rates and ± % for the static pressure of the casing Measurement device shall comply with EN 306 Key adjustable fan air flow measuring equipment ventilation unit static pressure measuring equipment Figure D.1 — Test setup for leakage 26 BS EN 13141-11:2015 EN 13141-11:2015 (E) Bibliography [1] EN 13141-7, Ventilation for buildings - Performance testing of components/products for residential ventilation - Part 7: Performance testing of a mechanical supply and exhaust ventilation units (including heat recovery) for mechanical ventilation systems intended for single family dwellings [2] EN 60335-2-80:2003 and its A2:2009, Household and similar electrical appliances — Safety — Part 280: Particular requirements for fans (IEC 60335-2-80:2002+A2:2008) [3] EN ISO 11546-1, Acoustics - Determination of sound insulation performances of enclosures - Part 1: Measurements under laboratory conditions (for declaration purposes) (ISO 11546-1) 27 This page deliberately left blank This page deliberately left blank NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW British Standards Institution (BSI) BSI is the national body responsible for preparing British Standards and other standards-related publications, information and services BSI is incorporated by Royal Charter British Standards and other standardization products are published by BSI Standards Limited About us Revisions We bring together business, industry, government, consumers, innovators and others to shape their combined experience and expertise into standards -based solutions Our British Standards and other publications are updated by amendment or revision The knowledge embodied in our standards has been carefully assembled in a dependable format and refined through our 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