EN 13141-8:2014
(Main)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 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
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 an un-ducted mechanical supply and exhaust ventilation unit used in a single room.
The purpose of this European Standard is not to consider the quality of ventilation but to test the performance of the equipment.
In general, a ventilation unit contains:
- supply and exhaust air fans;
- air filters;
- air to air heat exchanger or air storage mass for exhaust air heat and humidity recovery;
- control system;
- inlet and outlet grilles.
Such equipment can be provided in more than one assembly, the separate assemblies of which are designed to be used together.
Such equipment can contain alternating heat exchangers which provide separate supply and exhaust air flows.
In certain cases, i.e. alternating ventilation unit, the manufacturer may recommend that the equipment can be installed in such a way that it serves more than one room. For the purpose of this European Standard, these products are assessed in a single room.
This European Standard does not deal with ducted units or units with heat pumps.
Safety requirements are given in EN 60335 2 80:2003 [2].
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
Diese Europäische Norm legt die Laborverfahren und die Anforderungen an die Prüfung des aero¬dyna-mischen, thermischen und akustischen Leistungsverhaltens sowie der elektrischen Leistung einer mecha-nischen Zuluft- und Fortlufteinheit ohne Luftführung in einem einzelnen Raum fest.
Der Zweck der vorliegenden Norm besteht nicht in der Feststellung der Qualität der Lüftung, sondern in der Prüfung der Leistung der Ausrüstung.
Im Allgemeinen besteht eine Lüftungseinheit aus:
Zuluft- und Fortluftventilatoren;
Luftfiltern;
Luft/Luft-Wärmeübertragern oder Luftspeichermasse für die Wärme- und Luftfeuchterückgewinnung aus der Fortluft;
Regel- und Steuereinrichtung;
Einlass- und Austrittsluftgitter.
Eine derartige Ausrüstung kann in mehr als einer Baugruppe geliefert werden, wobei die einzelnen Bau¬grup-pen für die gemeinsame Verwendung ausgelegt sind.
Eine derartige Ausrüstung kann Umschalt-Wärmeübertrager mit getrennten Zuluft- und Fortluftströmen um¬fas-sen.
In bestimmten Fällen, d. h. bei einer Umschalt-Lüftungseinheit, darf der Hersteller die Empfehlung abgeben, dass die Ausrüstung so eingebaut wird, dass sie mehr als einen Raum versorgt. Für die Anwendung dieser Norm werden die entsprechenden Produkte in einem einzelnen Raum bewertet.
Einheiten mit Luftführung oder mit Wärmepumpen werden in dieser Europäischen Norm nicht behandelt.
Die Sicherheitsanforderungen sind in EN 60335-2-80:2003 [2] angegeben.
Ventilation des bâtiments - Essais de performance des composants/produits pour la ventilation des logements - Partie 8 : Essais de performance des unités de soufflage et d'extraction (y compris la récupération de chaleur) pour les systèmes de ventilation mécaniques non raccordés prévus pour une pièce
La présente Norme européenne spécifie les méthodes d’essai de laboratoire et les exigences correspondantes pour la détermination des performances aérauliques, thermiques et acoustiques ainsi que de la puissance électrique d’une unité de soufflage et d’extraction non raccordée prévue pour une pièce.
L’objet de la présente Norme européenne n’est pas d’estimer la qualité de la ventilation mais de mesurer la performance de l’équipement.
D’une manière générale, une unité de ventilation comprend :
- des ventilateurs de soufflage et d’extraction d'air ;
- des filtres à air ;
- un échangeur thermique air/air ou un stockage d'air pour la récupération de chaleur et d’humidité de l’air évacué ;
- un système de commande ;
- des grilles d'entrée et de sortie.
Cet équipement peut se composer de plusieurs assemblages conçus pour être utilisés ensemble.
Cet équipement peut contenir des échangeurs de chaleur alternatifs fournissant des flux d'air de soufflage et d’extraction séparés.
Dans certains cas, c’est-à-dire unité de ventilation alternative, le fabricant peut recommander que l’équipement soit installé de façon à ce qu’il desserve plus d’une pièce. Pour l’application de la présente Norme européenne, ces produits sont évalués dans une pièce.
La présente Norme européenne ne traite pas des bouches raccordées ou équipées de pompes à chaleur.
Les exigences de sécurité sont données dans l’EN 60335-2-80:2003 [2].
Prezračevanje stavb - Preskušanje lastnosti stanovanjskih prezračevalnih komponent/izdelkov - 8. del: Preskušanje lastnosti mehanskih brezkanalnih dovodnih in odvodnih prezračevalnih enot (vključno z rekuperacijo toplote) za mehanske prezračevalne sisteme za mehansko prezračevanje posameznih prostorov
Standard EN 13141-8 določa laboratorijske preskusne metode ter preskusne zahteve za preskušanje aerodinamičnih, toplotnih in akustičnih lastnosti ter električno napajanje brezkanalne dovodne in odvodne prezračevalne enote za posamezne prostore. Ta evropski standard ni namenjen obravnavanju kakovosti prezračevanja, ampak preskušanju lastnosti opreme. Prezračevalna enota na splošno zajema: – dovodne in odvodne zračne ventilatorje; – zračne filtre; – zračni toplotni prenosnik ali maso za skladiščenje zraka za rekuperacijo toplote in vlage iz odvodnega zraka; – nadzorni sistem; – dovodne in odvodne rešetke. Taka oprema se lahko zagotovi v več sestavih, pri čemer so ločeni sestavi oblikovani tako, da se uporabljajo skupaj. Taka oprema lahko zajema izmenične toplotne izmenjevalnike, ki zagotavljajo ločena pretoka dovodnega in odvodnega zraka. V nekaterih primerih, tj. pri izmenični prezračevalni enoti, lahko proizvajalec priporoča, da se oprema namesti tako, da prezračuje več prostorov. Za namen tega evropskega standarda se ti izdelki ocenijo v enem samem prostoru. Ta evropski standard ne obravnava kanalnih enot ali enot s toplotnimi črpalkami. Varnostne zahteve so navedene v standardu EN 60335-2-80:2003
General Information
- Status
- Withdrawn
- Publication Date
- 24-Jun-2014
- Withdrawal Date
- 13-Apr-2025
- Technical Committee
- CEN/TC 156 - Ventilation for buildings
- Drafting Committee
- CEN/TC 156/WG 2 - Natural and mechanical powered residential ventilation
- Current Stage
- 9960 - Withdrawal effective - Withdrawal
- Start Date
- 07-Sep-2022
- Completion Date
- 14-Apr-2025
Relations
- Effective Date
- 02-Jul-2014
- Effective Date
- 14-Sep-2022
Frequently Asked Questions
EN 13141-8:2014 is a standard published by the European Committee for Standardization (CEN). Its full title is "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". This standard covers: 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 an un-ducted mechanical supply and exhaust ventilation unit used in a single room. The purpose of this European Standard is not to consider the quality of ventilation but to test the performance of the equipment. In general, a ventilation unit contains: - supply and exhaust air fans; - air filters; - air to air heat exchanger or air storage mass for exhaust air heat and humidity recovery; - control system; - inlet and outlet grilles. Such equipment can be provided in more than one assembly, the separate assemblies of which are designed to be used together. Such equipment can contain alternating heat exchangers which provide separate supply and exhaust air flows. In certain cases, i.e. alternating ventilation unit, the manufacturer may recommend that the equipment can be installed in such a way that it serves more than one room. For the purpose of this European Standard, these products are assessed in a single room. This European Standard does not deal with ducted units or units with heat pumps. Safety requirements are given in EN 60335 2 80:2003 [2].
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 an un-ducted mechanical supply and exhaust ventilation unit used in a single room. The purpose of this European Standard is not to consider the quality of ventilation but to test the performance of the equipment. In general, a ventilation unit contains: - supply and exhaust air fans; - air filters; - air to air heat exchanger or air storage mass for exhaust air heat and humidity recovery; - control system; - inlet and outlet grilles. Such equipment can be provided in more than one assembly, the separate assemblies of which are designed to be used together. Such equipment can contain alternating heat exchangers which provide separate supply and exhaust air flows. In certain cases, i.e. alternating ventilation unit, the manufacturer may recommend that the equipment can be installed in such a way that it serves more than one room. For the purpose of this European Standard, these products are assessed in a single room. This European Standard does not deal with ducted units or units with heat pumps. Safety requirements are given in EN 60335 2 80:2003 [2].
EN 13141-8:2014 is classified under the following ICS (International Classification for Standards) categories: 91.140.30 - Ventilation and air-conditioning systems. The ICS classification helps identify the subject area and facilitates finding related standards.
EN 13141-8:2014 has the following relationships with other standards: It is inter standard links to EN 13141-8:2006, EN 13141-8:2022. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
EN 13141-8:2014 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.HYDOQLKNDQDOQLKLKSURVWRURYLüftung 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 RäumenVentilation des bâtiments - Essais de performance des composants/produits pour la ventilation des logements - Partie 8: Essais de performance des unités de soufflage et d'extraction (y compris la récupération de chaleur) pour les systèmes de ventilation mécaniques non raccordés prévus pour une pièceVentilation 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 room91.140.30VLVWHPLVentilation and air-conditioningICS:Ta slovenski standard je istoveten z:EN 13141-8:2014SIST EN 13141-8:2014en,fr,de01-september-2014SIST EN 13141-8:2014SLOVENSKI
STANDARDSIST EN 13141-8:20061DGRPHãþD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 13141-8
June 2014 ICS 91.140.30 Supersedes EN 13141-8:2006English 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 de performance des composants/produits pour la ventilation des logements - Partie 8 : Essais de performance des unités 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 6 February 2014.
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 © 2014 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 13141-8:2014 ESIST EN 13141-8:2014
Test layouts . 36 Annex B (normative)
Pressure leakage test method . 38 B.1 External leakage test . 38 B.2 Internal leakage test . 38 Annex C (normative)
Indoor mixing . 40 C.1 General. 40 C.2 Determination of indoor mixing - First test . 40 C.3 Determination of indoor mixing - Second test . 40 C.4 Indoor mixing calculation . 40 Bibliography . 41
Figure 1 — Position of EN 13141-8 in the field of the mechanical building services SIST EN 13141-8:2014
Temperature ratio of the unit on exhaust air side
=Temperature ratio of the unit on supply air side
x, ex Humidity ratio of the unit on exhaust air side
x, su=Humidity ratio of the unit on supply air side
11 Extract air (see Figure 2)
21 Outdoor air (see Figure 2)
22 Supply air (see Figure 2)
C11 Concentration of tracer gas on extract air side using one of the test configuration a), b), c) or d) of Figure 2 or Figure 4 mg/m3 C22 Concentration of tracer gas on supply air side using one of the test configuration a), b), c) or d) of Figure 2 or Figure 4 mg/m3 C12 Concentration of tracer gas on exhaust air side using one of the test configuration a), b), c) or d) of Figure 2 or Figure 4 mg/m3 Dn,e Airborne sound insulation in third octave bands dB Dn,e,w Global airborne sound insulation index dB LW Sound power level dB LWA A-weighted sound power level dB PE Electric power input W ps Static pressure Pa qm Mass air flow rate kg.s−1 or g.s−1 qm11 Mass extract air flow rate kg.s−1 or g.s−1 qm12 Mass exhaust air flow rate kg.s−1 or g.s−1 qm21 Mass outdoor air flow rate kg.s−1 or g.s−1 qm22 Mass supply air flow rate kg.s−1 or g.s−1 qme Outdoor mixing (calculated) % qmi Indoor mixing m3.s−1 or l.s−1 qv Volume air flow rate m3.s−1 or l.s−1 qvd Maximum air flow rate m3.s−1 or l.s−1 qvmax Maximum air volume flow rate m3.s−1 or l.s−1 qve External leakage air volume flow rate m3.s−1 or l.s−1 qvi Internal leakage air volume flow rate m3.s−1 or l.s−1 qvio Average volume flow rate for alternating ventilation unit m3.s−1 or l.s−1 qvies Internal leakage from exhaust to supply flow m3.s−1 or l.s−1 qvise Internal leakage from supply to exhaust flow m3.s−1 or l.s−1 qvmeasured Measured air volume flow rate m3.s−1 or l.s−1 SIST EN 13141-8:2014
t1 “On” period of the cycle with alternating ventilation units working in one way s t2 “Off” period of the cycle for alternating ventilation units s t3 “On” period of the cycle with alternating ventilation units working in the other way s t4 “Off” period of the cycle for alternating ventilation units s tcycle Time of an operating cycle for alternating ventilation units s x Water content kg water / kg dry air x11 Water content for extract air kg water / kg dry air x12 Water content for exhaust air kg water / kg dry air x21 Water content for outdoor air kg water / kg dry air x22 Water content for supply air kg water / kg dry air 5 Test methods 5.1 General Tests shall be conducted with a unit containing all components (including wall ducts and grilles, if applicable) as supplied for intended use, and installed according to the manufacturer's instructions. The mass flows qm11 and qm22 shall be balanced to within 3 % without any pressure difference between the two climatic test chambers unless the manufacturer specifies otherwise. Over 3 %, the unit is declared unbalanced and the imbalance shall be reported. The mass flows qm11 and qm22 shall be measured in steady-state conditions at the same time. Where a single value is assigned by the manufacturer as rated voltage, this shall be the test voltage. Where a voltage range is assigned to the product by the manufacturer that includes 230 VAC, the test shall be conducted at 230 VAC. This voltage shall be maintained throughout the testing to ± 1 %. Where a product requires a voltage regulation device (transformer), this device shall also be supplied or clearly specified. The power consumption of this device shall be taken into account. The tests shall be conducted at the primary voltage. 5.2 Performance testing of aerodynamic characteristics 5.2.1 General If one of the tests (leakage or mixing) describe in Figure 2 a), b), c) or d) give a value of internal leakage and mixing over 10 %, all further tests shall not be carried out (see Table 7). 5.2.2 Internal leakages and mixing SIST EN 13141-8:2014
a) internal leakages b) internal leakages + outdoor mixing
c) internal leakages on outdoor air d) internal leakages on outdoor air + indoor mixing Key 21 outdoor air 5 deflector 11 extract air 6 tracer gas introduction 22 supply air 7 tracer gas measurement 12 exhaust air
Figure 2 — Test configurations for internal leakages and mixing The internal leakages and mixing are calculated using Formulae (1) to (4): internal leakage = aCC1222 (1) outdoor mixing = abCCCC−12221222 (2) internal leakage on outdoor air = cCC2212 (3) indoor mixing = cdCCCC−22122212 (4) where terms a, b, c and d refer to subfigures a, b, c and d of Figure 2. 5.2.2.2 External leakage The external leakage shall be measured according to Annex B. The external leakage air volume flow qve at over and under-pressure of 50 Pa shall be reported as such and also compared to the maximum air volume flow of the unit as a percentage. During the tests, the fans of the unit under test shall be switched off. SIST EN 13141-8:2014
Key h∆ vertical distance L horizontal distance Figure 3 — Illustration of terms “horizontal distance” and “vertical distance” used in Table 2 5.2.2.4.2 Indoor mixing − aetermination of the test needs Due to the small dimensions of a single room unit the distance between the air inlets and outlets can be very small and thus there is a risk of mixing extract air with fresh outdoor air. Tests are not necessary when the maximum air flow rate in l.s−1 is according or below the values given in Table 2. 5.2.2.4.3 Method of testing and calculation When the deflector is removed the concentration of the tracer gas at the indoor supply grille is now the sum of the internal leakage and the mixing between discharge and intake grilles, expressed as a percentage of the supply flow. The mixing is therefore calculated as the difference between the percentages measured during this test and the internal leakage. A separate mixing measurement is made at both the indoor and outdoor grille locations, the measurement with the highest percentage figure is used for the calculations. The method is described in Annex C (normative). NOTE The duration of the test is limited such that any influence of the contamination/saturation of the test room from the gas is reduced to a minimum 5.2.3 Air flow The air flow, for both supply and exhaust air flows, shall be determined according to EN 13141-4 simultaneously or not, as convenient. This is illustrated in Annex A, using a duct with a cross section area sufficient for the flow velocity to be less than 1 m.s−1 and an additional fan to ensure that the pressure at the port is atmospheric. Tests shall be made in accordance with Category A installation (free inlet and outlet) as defined in EN 13141-4. The fans shall be switched on. In order to determine the air flow at no pressure difference between the indoor and outdoor space at least three measurements shall be carried out as follows (these measurements are used to classify maximum deviation of air flow, see Table 3 for temperature conditions): — two measurements at + 20 Pa and - 20 Pa respectively; — one measurement of the airflow at no pressure (0 Pa), this point shall not be an interpolation between the two measurements at + 20 Pa and - 20 Pa. For multiple air volume flow fans the following set points shall be measured: SIST EN 13141-8:2014
a) period 1: fan working in extraction mode during t1 b) period 2: fan off during t2
c) period 3: fan working in supply mode during t3 d) period 4: fan off during t4 Key
1 outdoor air 21 2 extract air 11 3 supply air 22 4 exhaust air 12 Figure 4 — Schematic diagram for one unit of alternating heat exchangers The corrected mass air flow rate for one unit (two paired devices) is calculated using Formula (5). ∫∫=31.;.m22m11cyclemMIN2ttdtqdtqtq (5) NOTE Total air change for the test room is considered with paired devices working synchronised in opposite way (only the minimum air flow is considered). qm11 and qm22 can be measured in steady-state conditions and the simpler Formula (6) can be used. ()cycle31m22m11m;MINtttqqq+⋅= (6) The graph for mass air flow rate for one unit is given in Figure 5. SIST EN 13141-8:2014
Figure 5 — Mass air flow rate for one unit It would be possible to consider the rise and fall times for calculate qm but as they are quite similar in each direction, the simplify Formula (6) is used. 5.3.2 Leakages 5.3.2.1 External leakage The external leakage shall be measured according to Annex B. The external leakage air volume flow veq at over-pressure and under-pressure of 50 Pa shall be reported as such and also compared to the maximum air volume flow of the unit as a percentage. During the tests, the fans of the unit under test shall be switched off. 5.3.2.2 Internal leakage Internal leakage measurements are not applicable. 5.3.2.3 Outdoor mixing and carry over The volume inside the unit is carried over at each cycle and shall not be incorporated for calculating the air volume flows. Depending on the frequency of reverse mode and stop time, the percentage of the maximum air volume flow shall be determined. Due to the fact that one duct is used for the air inlets and outlets, there is a risk of mixing fresh outdoor air with used indoor air because the used air can be recirculated for the next period. The measurement of the outdoor mixing air by using the tracer gas method is mandatory. The test method is described below: — Spaces 1 (outdoor air side) and 4 (exhaust air side) (see Figure 4) shall be open to the outside. — Introduce gas in the extract side 2 (see Figure 4) during the first part of the cycle t1. — Measure the concentration of tracer gas C11. — Stop the sending of the gas after t1. SIST EN 13141-8:2014
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.
Loading comments...