SIST EN 13141-6:2015
(Main)Ventilation for buildings - Performance testing of components/products for residential ventilation - Part 6: Exhaust ventilation system packages used in a single dwelling
Ventilation for buildings - Performance testing of components/products for residential ventilation - Part 6: Exhaust ventilation system packages used in a single dwelling
This European Standard specifies laboratory methods for measuring the aerodynamic and acoustic performance characteristics and energy consumption of assembled exhaust ventilation system packages for a single dwelling. If a component of the package is not physically linked to the others (e.g. externally/internally mounted air transfer devices), then it is assumed to have been tested according to the test method related to this component. An example of a typical exhaust package is given in Figure 2.
The object of this standard is to provide tested characteristics for a system package in worst case conditions. It is assumed that better values are achieved on site when the system package is installed in accordance with the manufacturer's instruction and within the limits of the test conditions given in this standard. Safety requirements are given in EN 60335-2-80.
Lüftung von Gebäuden - Leistungsprüfung von Bauteilen/Produkten für die Lüftung von Wohnungen - Teil 6: Baueinheiten für Abluftanlagen für eine einzelne Wohnung
Diese Europäische Norm legt Laborverfahren für die Messung der aerodynamischen und akustischen Leistungskenngrößen sowie des Energieverbrauchs von zusammengesetzten Baueinheiten für Abluftanlagen für eine einzelne Wohnung fest. Wenn ein Bauteil der Baueinheit nicht direkt mit den anderen Bauteilen verbunden ist (z. B. Außenwand- oder Überströmluftdurchlässe), wird davon ausgegangen, dass dieses Bauteil nach dem dafür gültigen Prüfverfahren geprüft wurde. Ein Beispiel einer typischen Abluft-Baueinheit ist in Bild 2 angegeben.
Zweck dieser Norm ist es, Kenngrößen für eine Anlagenbaueinheit zu liefern, die bei Prüfungen unter den ungünstigsten Bedingungen bestimmt wurden. Es wird davon ausgegangen, dass bessere Werte erreicht werden, wenn die Anlagenbaueinheit nach den Herstelleranweisungen und innerhalb der in dieser Norm angegebenen Grenzen der Prüfbedingungen vor Ort eingebaut wurde.
Sicherheitsanforderungen sind in EN 60335 2 80 angegeben.
Ventilation des bâtiments - Essais de performance des composants/produits pour la ventilation des logements - Partie 6: Kits pour systèmes de ventilation par extraction pour le logement individuel
La présente Norme européenne spécifie des méthodes de laboratoire pour le mesurage des caractéristiques de performances aérodynamiques et acoustiques et de la consommation d'énergie de kits pour système de ventilation par extraction pour logement individuel. Si un composant du kit n’est pas physiquement lié aux autres (par exemple dispositifs de transfert d’air monté en interne/externe), il est alors supposé avoir été soumis à essai conformément à la méthode d’essai associée à ce composant. Un exemple d’un kit typique pour extraction est donné à la Figure 2.
L'objet de la présente norme est de fournir des caractéristiques d’essai d’un kit pour système dans des conditions extrêmes. Il est supposé que de meilleures valeurs sont obtenues sur site lorsque le kit pour système est installé conformément aux instructions du fabricant et dans les limites des conditions d'essai données dans la présente norme.
Les exigences de sécurité sont données dans l’EN 60335-2-80.
Prezračevanje stavb - Preskušanje lastnosti stanovanjskih prezračevalnih komponent/izdelkov - 6. del: Odvodni prezračevalni sistemi za eno stanovanje
Ta evropski standard določa laboratorijske metode za merjenje aerodinamičnih in akustičnih lastnosti ter porabo energije v nameščenih odvodnih prezračevalnih sistemih za eno stanovanje. Če komponenta sistema fizično ni povezana z drugimi (npr zunaj/znotraj nameščene naprave za prenos zraka), se domneva, da je bila preskušena v skladu s preskusno metodo, ki velja za to komponento. Primer običajnega odvodnega sistema je prikazan na sliki 2.
Cilj tega standarda je zagotoviti preskušene lastnosti za sistemski paket v najslabših možnih pogojih. Predpostavlja se, da se na mestu uporabe dosežejo boljše vrednosti, ko je sistem nameščen v skladu z navodili proizvajalca in v mejah preskusnih pogojev, navedenih v tem standardu. Varnostne zahteve so navedene v standardu EN 60335-2-80.
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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.HYDOQLKLüftung von Gebäuden - Leistungsprüfung von Bauteilen/Produkten für die Lüftung von Wohnungen - Teil 6: Baueinheiten für Abluftanlagen für eine einzelne WohnungVentilation des bâtiments - Essais de performance des composants/produits pour la ventilation des logements - Partie 6: Kits pour systèmes de ventilation par extraction pour le logement individuelVentilation for buildings - Performance testing of components/products for residential ventilation - Part 6: Exhaust ventilation system packages used in a single dwelling91.140.30VLVWHPLVentilation and air-conditioningICS:Ta slovenski standard je istoveten z:EN 13141-6:2014SIST EN 13141-6:2015en,fr,de01-marec-2015SIST EN 13141-6:2015SLOVENSKI
STANDARDSIST EN 13141-6:20041DGRPHãþD
SIST EN 13141-6:2015
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 13141-6
December 2014 ICS 91.140.30 Supersedes EN 13141-6:2004English Version
Ventilation for buildings - Performance testing of components/products for residential ventilation - Part 6: Exhaust ventilation system packages used in a single dwelling
Ventilation des bâtiments - Essais de performance des composants/produits pour la ventilation des logements - Partie 6: Kits pour systèmes de ventilation par extraction pour le logement individuel
Lüftung von Gebäuden - Leistungsprüfung von Bauteilen/Produkten für die Lüftung von Wohnungen - Teil 6: Baueinheiten für Abluftanlagen für eine einzelne Wohnung This European Standard was approved by CEN on 6 September 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 13141-6:2014 ESIST EN 13141-6:2015
EN 13141-6:2014 (E) 2 Contents Page Foreword .4 Introduction .6 1 Scope .8 2 Normative references .9 3 Terms and definitions . 10 4 Symbols and abbreviations . 11 5 Performance testing of aerodynamic characteristics . 12 5.1 General . 12 5.2 Test installation and conditions . 13 5.2.1 Test configuration. 13 5.2.1.1 Test installation . 13 5.2.1.2 Maximum airflow test configuration . 13 5.2.1.3 Minimum airflow test configuration . 14 5.2.1.4 Boosted airflow test configuration . 14 5.2.1.5 Energy efficiency test — reference configuration . 14 5.2.2 Installation of duct connecting roof/wall outlet terminal to the fan unit . 16 5.2.3 Installation of ducts connecting exhaust air terminal devices and fan unit. 16 5.2.4 Test conditions . 17 5.2.4.1 Exhaust conditions . 17 5.2.4.1.1 Normal conditions . 17 5.2.4.1.2 Wind conditions . 18 5.2.4.2 Temperature . 18 5.2.4.3 Electrical conditions . 18 5.3 Test procedure . 18 5.4 Presentation of results . 18 6 Performance testing of external leakages . 19 7 Performance testing of electrical power . 20 7.1 General . 20 7.2 Method . 21 7.3 Analysis of results . 21 7.4 Presentation of results . 21 8 Performance testing of energy efficiency . 21 9 Performance testing of acoustic characteristic . 22 9.1 General . 22 9.2 Determination of the sound power level of the exhaust air terminal devices or range hood . 23 9.2.1 Test installation and conditions for exhaust air terminal devices . 23 9.2.2 Test installation and conditions for range hoods . 24 9.2.3 Test procedure . 24 9.3 Determination of the sound power level of the fan unit . 24 9.3.1 General — Noise radiated through the casing of the unit . 24 9.3.2 Test installation and conditions . 24 SIST EN 13141-6:2015
EN 13141-6:2014 (E) 3 9.3.3 Measurements . 24 9.4 Presentation of the results . 25 Annex A (informative)
Example of compensating mounting for air flow measurement device . 26 Bibliography . 27
SIST EN 13141-6:2015
EN 13141-6:2014 (E) 4 Foreword This document (EN 13141-6:2014) 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 June 2015, and conflicting national standards shall be withdrawn at the latest by June 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. This document supersedes EN 13141-6:2004. In comparison to EN 13141-6:2004 the following changes have been made: — in Clause 3, introduction of the definition of: maximum and minimum air volume flows (qvmax and qvmin), demand control ventilation (DCV), boosted air volume flow (qvboost), short duct and long duct and reference configuration (for the energy efficiency calculation); — in 5.2.2, differentiation of the duct connecting the roof/wall outlet to the fan unit depending if the fan unit outlet is situated on the top of the fan unit or if it is situated on a face of the fan unit; — modification of Figure 6 describing the types of long ducts and long branched ducts (it now explains how to deal with long branched ducts on which there are more than 3 spigots); — modification of Table 1 for the presentation of the aerodynamic characteristics; — adding in Clause 6 of a procedure for the measurement of the external leakage; — adding of Table 2 giving a classification of the external leakage; — in Clause 7, specification of the test conditions for the measurement of the electrical power; — in Clause 8, adding of a paragraph defining the test conditions and the calculation for the obtaining of the energy efficiency; — creation of Table 3 for the presentation of the power consumption results; — in Clause 9, specification of the acoustic test conditions; — in Annex A, modification and explanation of Figure A.1 representing an example of compensating mounting for air flow measurement device. EN 13141 consists of the following parts, under the general title Ventilation for buildings testing of components/products for residential ventilation: — mart k: bxternally and internally mounted air transfer devices — mart l: bxhaust and supply air terminal devices — mart 3: Range hoods for residential use — mart 4: Fans used in residential ventilation systems SIST EN 13141-6:2015
EN 13141-6:2014 (E) 5 — mart o: Cowls and roof outlet terminal devices — mart p: bxhaust ventilation system packages used in a single dwelling — mart q: merformance testing of a mechanical supply and exhaust ventilation units bincluding heat recovery) for mechanical ventilation systems intended for single family dwellings — mart 8: merformance testing of un-ducted mechanical supply and exhaust ventilation units bincluding heat recoveryc for mechanical ventilation systems intended for a single room — mart s: bxternally mounted humidity controlled air transfer device — mart kM: eumidity controlled extract air terminal device — mart kk: mositive pressure ventilation systems According to the CEN-CENELEC Internal Regulations, the national standards organizations 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. SIST EN 13141-6:2015
EN 13141-6:2014 (E) 6 Introduction This European Standard specifies test methods on ventilation system package and permits to avoid tests on each component separately. The performance characteristics of the components/products for residential ventilation are given in EN 13142, [1]. The position of this European Standard in the field of standards for the mechanical building services is shown in Figure 1. SIST EN 13141-6:2015
EN 13141-6:2014 (E) 7
Figure 1— Position of EN 13141-6 in the field of the mechanical building services SIST EN 13141-6:2015
EN 13141-6:2014 (E) 8 1 Scope This European Standard specifies laboratory methods for measuring the aerodynamic and acoustic performance characteristics and energy consumption of assembled exhaust ventilation system packages for a single dwelling. If a component of the package is not physically linked to the others (e.g. air inlets), then it is assumed to have been tested according to the test method related to this component. An example of a typical exhaust package is given in Figure 2. The object of this European Standard is to provide tested characteristics for a ventilation system package in worst case conditions. It is assumed that better values are achieved on site when the ventilation system package is installed in accordance with the manufacturer's instruction and within the limits of the test conditions given in this standard. Safety requirements are given in EN 60335-2-80.
Key 1 fan unit 7 duct for extract air from 6 2 roof/wall outlet 8 exhaust air terminal device (toilets) 3 duct for roof/wall outlet 9 duct for extract air from 8 4 static extraction range hood or exhaust 10 sound attenuators
air terminal device (kitchen) 11 controls 5 duct for range hood 12 set of air inlets 6 exhaust air terminal device (bathroom)
Figure 2 — Example of system package: exhaust ventilation system package SIST EN 13141-6:2015
EN 13141-6:2014 (E) 9 NOTE In Figure 2, ducts, outlets, fan, exhaust air terminal devices, sound attenuators, etc. are presented assembled but they are normally sold disassembled in a single package. 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 12792:2003, Ventilation for buildings - pymbolsf terminology and graphical symbols EN 13141-4, Ventilation for buildings - merformance testing of components/products for residential ventilation - mart 4: cans used in residential ventilation systems EN 13141-7:2010, Ventilation for buildings - merformance testing of components/products for residential ventilation - mart q: merformance testing of a mechanical supply and exhaust ventilation units bincluding heat recoveryc for mechanical ventilation systems intended for single family dwellings EN 60704-2-13, eousehold and similar electrical appliances - qest code for the determination of airborne acoustical noise - mart l-km: marticular requirements for range hoods EN ISO 3741, Acoustics - aetermination of sound power levels and sound energy levels of noise sources using sound pressure - mrecision methods for reverberation test rooms bfpl mq4kc EN ISO 3743-1, Acoustics - aetermination of sound power levels and sound energy levels of noise sources using sound pressure - bngineering methods for small movable sources in reverberant fields - mart k: Comparison method for a hard-walled test room bfpl mq4m-1) EN ISO 3743-2, Acoustics - aetermination of sound power levels of noise sources using sound pressure - Engineering methods for smallf movable sources in reverberant fields - mart l: Methods for special reverberation test rooms bfpl mq4m-2) EN ISO 3744, Acoustics - aetermination 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 bfpl mq44c EN ISO 3745, Acoustics - aetermination of sound power levels and sound energy levels of noise sources using sound pressure - mrecision methods for anechoic rooms and hemi-anechoic rooms bfpl mq4oc EN ISO 5167-1, Measurement of fluid flow by means of pressure differential devices inserted in circular cross-section conduits running full - mart k: deneral principles and requirements bfpl okpq-1) EN ISO 5167-2, Measurement of fluid flow by means of pressure differential devices inserted in circular cross-section conduits running full - mart l: lrifice plates bfpl okpq-2) EN ISO 5167-3, Measurement of fluid flow by means of pressure differential devices inserted in circular cross-section conduits running full - mart m: kozzles and senturi nozzles bfpl okpq-3) EN ISO 5167-4, Measurement of fluid flow by means of pressure differential devices inserted in circular cross-section conduits running full - mart 4: senturi tubes bfpl okpq-4) EN ISO 5801, fndustrial fans - merformance testing using standardized airways bfpl o8Mk) EN ISO 9614-1, Acoustics - aetermination of sound power levels of noise sources using sound intensity - mart k: Measurement at discrete points bfpl spk4-1) SIST EN 13141-6:2015
EN 13141-6:2014 (E) 10 EN ISO 9614-2, Acoustics - aetermination of sound power levels of noise sources using sound intensity - mart l: Measurement by scanning bfpl spk4-2) 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 12792:2003 and the following apply. 3.1 ventilation system package (for a single dwelling) combination of compatible components designed as a single product to obtain a full residential ventilation system when installed as specified by the manufacturer Note 1 to entry
It may exclude ducts and minor parts such as tapes, sealants and screws. 3.2 exhaust ventilation system package system package comprising all components necessary to realize at least the exhaust part of a ventilation system in a dwelling Note 1 to entry
The following components may be part of the package: fan unit, roof/wall outlet, ducts (for roof/wall outlet, for exhaust air terminal devices), exhaust air terminal devices, range hood, controls, sound attenuators, set of externally mounted air transfer devices. 3.3 test-voltage voltage to be used for supplying the components during the testing 3.4 fan unit casing incorporating a fan and provided with spigots [SOURCE: EN 12792:2003, definition 164] 3.5 maximum air volume flow qvmax maximum ventilation air volume flow rate measured in the worst case conditions and corresponding to the operating range declared by the manufacturer, given for standard air conditions [SOURCE: EN 12792:2003] 3.6 minimum air volume flow qvmin minimum ventilation air volume flow rate measured in DCV packages in the worst case conditions and corresponding to the operating range declared by the manufacturer, given for standard air conditions [SOURCE: EN 12792:2003] SIST EN 13141-6:2015
EN 13141-6:2014 (E) 11 3.7 demand controlled ventilation DCV method providing automatic control of air volume flow of the ventilation system dependent upon the needs of air change rates (occupancy, pollution loads, etc.) using a suitable sensor and without user intervention i.e. automatic 3.8 boosted air volume flow qvboost air volume flow rate dedicated to the ventilation of the dwelling and to the punctual (e.g. on a very short time) removal of localized pollutants Note 1 to entry
The boost function can be used in the kitchen when cooking, in the bathroom during the shower, etc. 3.9 reference configuration configuration defined for the energy efficiency calculation 3.10 short duct duct made of one elbow (where R = D) and whose length is less than or equal to 1,5 m 3.11 long duct duct made of three elbows and whose total length is at least equal to 6,5 m 3.12 collecting duct duct, in a multi family dwelling, that collects the exhaust of several exhaust systems 4 Symbols and abbreviations For the purposes of this document, the symbols and abbreviations given in EN 12792:2003 and the following apply. Symbol Designation Unit ATD Air terminal Device — DCV Demand Control Ventilation — qv Total air volume flow rate m3/s qvt Total air volume flow rate measured downstream the fan m3/s qve External leakage air volume flow rate m3/s qvmin Minimum ventilation air volume flow rate measured in the worst case conditions, with the minimum number of spigots and with the ATD at their minimum setting m3/s qvmax Maximum ventilation air volume flow rate measured in the worst case conditions, with the maximum number of spigots and with the ATD at their maximum setting m3/s qvboost Boosted ventilation air volume flow rate measured in the worst case conditions m3/s SIST EN 13141-6:2015
EN 13141-6:2014 (E) 12 and with the ATD not contributing to the boost function at their minimum setting qvminref Minimum ventilation air volume flow rate in the reference configuration with the ATD at their minimum setting m3/s qvmaxref Maximum ventilation air volume flow rate in the reference configuration with the ATD at their maximum setting m3/s qvboostref Boosted ventilation air volume flow rate in the reference configuration with the ATD not contributing to the boost function at their minimum setting m3/s Fmin Occurrence frequency for qvminref — Fmax Occurrence frequency for qvmaxref — Fboost Occurrence frequency for qvboostref — mE Electric power input W mEminref Electric power input at qvminref W mEmaxref Electric power input at qvmaxref W mEboostref Electric power input at qvboostref W LW Sound power level dB LWA A-weighted sound power level dB pmfw
Weighted specific power input part load W/m3/s 5 Performance testing of aerodynamic characteristics 5.1 General The following aerodynamic characteristics shall be determined: — air volume flow rate qv for each exhaust air terminal device; — total air volume flow rate qvt measured downstream to the fan. When a range hood is incorporated into the system, the total air volume flow rate is the sum of the exhaust air terminal devices and range hood air flow rates. When the ventilation system package allows a range of air volume flow rates, the rate being varied by means of any control device, the aerodynamic characteristics shall be determined for both minimum and maximum levels and any other intermediate levels that may be requested by the manufacturer. The air volume flow rates shall be determined for the conventional configurations specified in 5.2, giving the least favourable extract conditions for aerodynamics. SIST EN 13141-6:2015
EN 13141-6:2014 (E) 13 5.2 Test installation and conditions 5.2.1 Test configuration 5.2.1.1 Test installation Tests shall be carried out with all the components which are directly linked, assembled in the configuration specified in Figure 3 according to the information provided for the package.
Key 1 fan unit 4 exhaust air terminal device 2 long duct 5 flow meter 3 long branched duct 6 electrical power source NOTE One spigot is used for a branched duct (e.g. 2 spigots, 3 extractions). Figure 3 — Example of test installation 5.2.1.2 Maximum airflow test configuration A package is evaluated in the worst case conditions for the maximum setting of the intended use if: — the maximum number of spigots and the maximum number of exhaust air terminal devices are used; and — only long ducts and long branched ducts are connected to the fan unit. The air terminal devices shall be set to their maximum opening. In the case, there is more than one air terminal device connected to one spigot, the air terminal device allowing the highest air volume flow rate shall be connected to the longest duct.
SIST EN 13141-6:2015
EN 13141-6:2014 (E) 14 When automatic control devices are supplied as part of the system, the test shall be carried out with the air terminal devices manually adjusted to the maximum required position. In case there is a boost function, qvmax doesn’t take into account the boosted air volume flow rate. 5.2.1.3 Minimum airflow test configuration A package is evaluated in the worst case conditions for the minimum setting of the intended use if: — the minimum number of air terminal devices is used; and — if only long ducts and long branched ducts are connected to the fan unit. At least, the following air terminal devices shall be connected to the fan unit: one for the kitchen and one for the bathroom. The air terminal devices shall be set, according to the manufacturer instructions, to obtain the minimum air volume flow rate. When automatic control devices are supplied as part of the system, the test shall be carried out with the air terminal devices manually adjusted to the minimum required position. 5.2.1.4 Boosted airflow test configuration The boosted air volume flow rate shall be measured in the worst case conditions if only long ducts and long branched ducts are connected to the fan unit. The air terminal devices contributing to the boost function shall be set at their boosted setting and the air terminal devices not contributing to the boosted airflow shall be set, according to the manufacturer instructions, to obtain the minimum airflow. When automatic control devices are supplied as part of the system, the test shall be carried out with the air terminal devices that don’t contribute to the boosted airflow manually adjusted to the minimum required position. 5.2.1.5 Energy efficiency test — reference configuration The configuration for this test is intended to represent the setting of the fan unit and the configuration of spigots and air terminal devices typical of an average dwelling. Only long ducts or long branched ducts are connected to the fan unit. When automatic control devices are supplied as part of the system, the air volume flow rate extracted from the dwelling for reference configuration can vary from a minimum (qvminref) to a maximum (qvmaxref) value with the possibility of a boosted value (qvboostref) as shown in Figure 4. When the system does not include automatic control devices, there is only one reference air volume flow rate with the possibility of a boosted value (qvboostref) as shown in Figure 5. In this case qvminref equals to a qvmaxref. qvmaxref is defined as follows: air volume flow rate measured with a number of spigots and air terminal devices adjusted to achieve 70 % of qvmax or a value of air volume flow rate immediately superior to 70 % of qvmax. When automatic control devices are supplied as part of the system, the test shall be carried out with the air terminal devices manually adjusted to the maximum required position. qvminref is measured in the reference configuration with the air terminal devices at their minimum setting. When automatic control devices are supplied as part of the system, the test shall be carried out with the air terminal devices manually adjusted to the minimum required position. The same number of spigots and air terminal devices than by qvmaxref shall be used. qvboostref is measured in the reference configuration with the air terminal devices that don’t contribute to the boost function set, according to the manufacturer instructions, to obtain the minimum air volume flow rate. When automatic control devices are supplied as part of the system, the air terminal devices not contributing to the boost function shall be manually adjusted to the minimum required position. SIST EN 13141-6:2015
EN 13141-6:2014 (E) 15 The maximum number of spigots shall be used to obtain qvmaxref. At least the following air terminal devices shall be connected to the fan unit: one for the kitchen, one for the bathroom and one for the toilets. qvmaxref shall be obtained by choosing a combination of air terminal devices among those used for qvmax.
Key 1 total flow rate qv 2 fan unit settings
boost Figure 4 — Example for the choice of the reference configuration for systems with automatic control devices SIST EN 13141-6:2015
EN 13141-6:2014 (E) 16
Key 1 total flow rate qv 2 fan unit settings
boost Figure 5 — Example for the choice of the reference configuration for systems without automatic control devices 5.2.2 Installation of duct connecting roof/wall outlet terminal to the fan unit If the system exhausts the air directly to outside, the exhaust fan unit shall be connected to the roof/wall outlet terminal by the following ducting: — if the fan unit outlet is located on the top of the fan unit (and the extract spigots on the faces): straight duct of 2 m long (see Figure 3); — if the fan unit ou
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