BS-EN-13141-8-2006.pdf
BRITISH STANDARD BS EN 13141-8:2006 Ventilation for buildings Performance testing of components/products for residential ventilation 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 The European Standard EN 13141-8:2006 has the status of a British Standard ICS 91.140.30 ? Licensed Copy: sheffieldun sheffieldun, na, Mon Oct 30 10:44:54 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 13141-8:2006 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 March 2006 © BSI ISBN 0 580 47986 2 National foreword This British Standard is the official English language version of EN 13141-8:2006. The UK participation in its preparation was entrusted to Technical Committee RHE/2, Ventilation for buildings, heating and hot water services, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 18, an inside back cover and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. DateComments Licensed Copy: sheffieldun sheffieldun, na, Mon Oct 30 10:44:54 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM EN 13141-8 March 2006 ICS 91.140.30 English Version Ventilation for buildings - Performance testing of components/products for residential ventilation - 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 Ventilation des bâtiments - Essais des performances des composants/produits pour la ventilation des logements - Partie 8 : Essais des performances des bouches de soufflage et d'extraction (y compris la récupération de chaleur) pour les systèmes de ventilation mécaniques non raccordés prévus pour une pièce Lüftung von Gebäuden - Leistungsprüfung von Bauteilen/Produkten für die Lüftung von Wohnungen - Teil 8: Leistungsprüfung von mechanischen Zuluft- und Ablufteinheiten ohne Luftführung (einschließlich Wärmerückgewinnung) für ventilatorgestützte Lüftungsanlagen von einzelnen Räumen This European Standard was approved by CEN on 20 January 2006. 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 Central Secretariat 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 Central Secretariat has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, 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 STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels © 2006 CENAll rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 13141-8:2006: E Licensed Copy: sheffieldun sheffieldun, na, Mon Oct 30 10:44:54 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 13141-8:2006 (E) 2 Contents Page Foreword3 Introduction.5 1 Scope 6 2 Normative references6 3 Terms, definitions and classification 6 3.1 Terms and definitions .6 3.2 Classification7 4 Symbols and abbreviations8 5 Requirements.9 6 Test methods9 6.1 General9 6.2 Performance testing of aerodynamic characteristics9 6.2.1 Leakages and mixing.9 6.2.2 Air flow.10 6.2.3 Filter bypass leakage (not applicable to filter classes G1 to G4).10 6.3 Performance testing of thermal characteristics.11 6.3.1 Temperature ratios.11 6.3.2 Operation at low outdoor temperatures11 6.4 Performance testing of acoustic characteristics .11 6.4.1 General11 6.4.2 Radiative sound power in the indoor or outdoor space11 6.5 Effective power input 12 7 Test results.12 7.1 Test report12 7.2 Product specifications 13 7.3 Leakages.13 7.4 Air flow14 7.5 Effective power input 14 7.6 Temperature ratios 14 7.7 Derived results.15 7.8 Acoustic characteristics .15 Annex A (informative) Test layouts.16 Bibliography18 Licensed Copy: sheffieldun sheffieldun, na, Mon Oct 30 10:44:54 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 13141-8:2006 (E) 3 Foreword This European Standard (EN 13141-8:2006) 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 September 2006, and conflicting national standards shall be withdrawn at the latest by September 2006. The European Standard is one of a series of standards on residential ventilation. The performance characteristics of the components/products for residential ventilation are given in EN 13142. The position of this European Standard in the field of standards for the mechanical building services is shown in Figure 1. Licensed Copy: sheffieldun sheffieldun, na, Mon Oct 30 10:44:54 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 13141-8:2006 (E) 4 Mechanical building services Control systems Ventilation and air conditioning systems Heating systems Ductwork Air terminal devices Air handling units Mechanical and natural powered residential ventilation Design criteria for the indoor environment System performance Installation Components/products for residential ventilation Performance characteristics Components/products for residential ventilation Performance testing Simplified calculation methods for residential ventilation system Design and dimensioning for residential ventilation system Performance testing for residential ventilation system 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 and mechanical supply and recovery) 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 Figure 1 Position of EN 13141-8 in the field of the mechanical building services According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, 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. Licensed Copy: sheffieldun sheffieldun, na, Mon Oct 30 10:44:54 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 13141-8:2006 (E) 5 Introduction This European Standard specifies methods for the performance testing of components used in residential ventilation systems to establish the main characteristics as identified in EN 13142. Part 1 and Part 2 relate respectively to the externally/internally mounted air transfer devices and the exhaust/supply air terminal devices, which are used in the residential ventilation. Part 3 considers performance testing of range hoods for residential use, and is based on an IEC standard. Part 4 consists in some special measurement conditions for fans to be used in the residential systems, when applying the general ISO methods (as ISO 5801). Part 5 gives test methods for cowls and other roof outlets. Part 6 gives test methods for exhaust ventilation system packages used in a single dwelling. Part 7 gives test methods for supply and exhaust ventilation unit used in a single dwelling. Part 8 gives test methods for un-ducted supply and exhaust ventilation unit used in a single room. The standard incorporates many references to other European and International Standards, especially on characteristics other than the aerodynamic characteristics, for instance on acoustic characteristics. In most cases some additional tests or some additional conditions are given for the specific use in residential ventilation systems. The standard can be used for the following applications: ? laboratory testing; ? attestation purposes. Licensed Copy: sheffieldun sheffieldun, na, Mon Oct 30 10:44:54 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 13141-8:2006 (E) 6 1 Scope This European Standard specifies the laboratory test methods and test requirements for the testing of aerodynamic, thermal and acoustic performance, and the electrical power of a un-ducted mechanical supply and exhaust ventilation unit used in a single room. In general, such a unit contains: ? supply and exhaust air fans; ? air filters; ? air to air heat exchanger for exhaust air heat recovery; ? control system. Such equipment can be provided in more than one assembly, the separate assemblies of which are designed to be used together. This European Standard does not deal with ducted units or units with heat pumps. Safety requirements are given in EN 60335-2-80. 2 Normative references The following referenced documents are indispensable for the application of this European Standard. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 308, Heat exchangers Test procedures for establishing performance of air to air and flue gases heat recovery devices EN 1886:1998, Ventilation for buildings Air handling units Mechanical performance EN 12792:2003, Ventilation for buildings Symbols, terminology and graphical symbols EN 13141-4, Ventilation for buildings Performance testing of components/products for residential ventilation Part 4: Fans used in residential ventilation systems EN ISO 3743-2: 1996, Acoustics Determination of sound power levels of noise sources using sound pressure Engineering methods for small, moveable 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) 3 Terms, definitions and classification 3.1 Terms and definitions For the purposes of this European Standard, the terms and definitions given in EN 12792:2003 and the following apply. 3.1.1 external leakage leakage to or from the air flowing inside the casing of the unit to or from the air external to the equipment under test Licensed Copy: sheffieldun sheffieldun, na, Mon Oct 30 10:44:54 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 13141-8:2006 (E) 7 3.1.2 internal leakage leakage inside the unit between the exhaust and the supply air flows 3.1.3 mixing short circuiting mixing of the two airflows external to the equipment under test between discharge and intake ports at both indoor and outdoor terminal points 3.1.4 filter bypass leakage air bypass around filter cells 3.1.5 declared maximum air volume flow air flow corresponding to that at the maximum setting. If the supply and exhaust air volume flows are different, then the declared maximum air volume flow is equal to the smaller 3.1.6 temperature ratio temperature difference between inlet and outlet of one of the airflows divided by the temperature difference between the inlets of both airflows, so that: () () intakeextract intakesupply tt tt t ? ? =? 3.1.7 effective power input average electrical power input to the equipment within a defined interval of time, in Watts, obtained from: ? power input of the fans; ? power input for operation of any power input for defrosting, excluding additional electrical heating devices not used for defrosting; ? power input of all control and safety devices of the equipment 3.1.8 test voltage voltage used for supplying the components during the testing 3.2 Classification Table 1 defines 6 classes of leakage depending of the 3 ratios: internal leakage, mixing and external leakage divided by declared maximum air volume flow. Licensed Copy: sheffieldun sheffieldun, na, Mon Oct 30 10:44:54 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 13141-8:2006 (E) 8 Table 1 Leakage classes Class Internal leakage (at 20 Pa) Mixing External leakage (at 50 Pa) U1 ? 2 % and ? 2 % and ? 2 % U2 ? 5 % and ? 5 % and ? 5 % U3 ? 10 % and ? 10 % and ? 10 % U4 ? 15 % and ? 15 % and ? 15 % U5 ? 20 % and ? 20 % and ? 20 % U6 20 % and 20 % and 20 % Because of measurement uncertainty, the tests for air flow/pressure curve and thermal performances shall not be made if the unit is class U6. 4 Symbols and abbreviations For the purposes of this European Standard, the symbols and abbreviations given in EN 12792:2003 and the following apply. LW sound power level in dB LWA A-weighted sound power level in dB PE effective power input in W qv air volume flow in m³/s or l/s qvd declared maximum air volume flow in m³/s or l/s qve external leakage air volume flow in m³/s or l/s qvi internal leakage air volume flow in m³/s or l/s q
