EN ISO 12759-4:2019
(Main)Fans - Efficiency classification for fans - Part 4: Driven fans at maximum operating speed (ISO 12759-4:2019)
Fans - Efficiency classification for fans - Part 4: Driven fans at maximum operating speed (ISO 12759-4:2019)
This document establishes a system for the classification of fan efficiency for all fan types driven by motors of nominal rating 0,125 kW and above. It applies to driven fans only, but not to the system (finished original equipment manufacturer's product, for example box fans and roof fans or ventilation system) in which they might be installed. This document describes a number of different procedures to classify the efficiency of a fan or to apply a minimum efficiency limit (MEL). Those procedures are described in:
— ISO 12759-3;
— this document (ISO 12759-4);
— ISO 12759-5;
— ISO 12759-6.
There is no method described to compare these classifications and MEL's.
Ventilatoren - Effizienzklassifizierung für Ventilatoren - Teil 4: Angetriebene Ventilatoren bei maximaler Betriebsdrehzahl (ISO 12759-4:2019)
Diese Internationale Norm legt ein System für die Klassifizierung des Ventilator-Wirkungsgrads bei allen Ventilatortypen fest, die von einem Motor mit einer Nennleistung von mindestens 0,125 kW angetrieben werden. Dies bezieht sich nur auf angetriebene Ventilatoren, aber nicht auf das System (Endprodukt des Originalgeräteherstellers, also z. B. Kastenventilatoren und Dachventilatoren oder Lüftungsanlagen), in das diese eingebaut sind. In diesem Dokument wird eine Reihe von verschiedenen Verfahren zur Klassifizierung des Ventilator-Wirkungsgrads bzw. zur Anwendung der Mindestwirkungsgradgrenze (en: minimum efficiency limit; MEL) beschrieben. Diese Verfahren werden in den folgenden Dokumenten beschrieben:
- ISO 12759 3;
- dieses Dokument (ISO 12759 4);
- ISO 12759 5;
- ISO 12759 6.
Es wird kein Verfahren zum Vergleich dieser Klassifizierungen und MELs beschrieben.
Ventilateurs - Classification du rendement des ventilateurs - Partie 4: Ventilateurs entraînés à vitesse maximale de fonctionnement (ISO 12759-4:2019)
Le présent document établit un système de classification du rendement de tous les types de ventilateurs entraînés par des moteurs dont la puissance nominale est de 125 kW et au-delà. Il est applicable aux ventilateurs (entraînés) uniquement. Il n'est pas applicable au système dans lequel les ventilateurs sont installés (produits finis du fabricant d'équipement d'origine, par exemple, les ventilateurs en caisson, les ventilateurs de toiture ou le système de ventilation). Le présent document décrit un nombre de procédures variées permettant de classifier le rendement d'un ventilateur ou d'appliquer une limite de rendement minimale (MEL). Ces procédures sont décrites dans:
— ISO 12759‑3;
— le présent document (ISO 12759‑4);
— ISO 12759‑5;
— ISO 12759‑6.
Il n'existe pas de méthode décrite permettant de comparer ces classifications et les MEL.
Ventilatorji - Klasifikacija učinkovitosti ventilatorjev - 4. del: Ventilatorji s pogonom pri največji obratovalni hitrosti (ISO 12759-4:2019)
Ta standard določa le besedišče vilic in priključkov za pretovarjanje. Dokument ne vsebuje varnostnih zahtev za vilice in priključke za pretovarjanje. V tem dokumentu izraz priključek opisuje napravo, nameščeno na industrijski tovornjak, ki omogoča alternativni način uporabe dvižnega sistema.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-februar-2020
Nadomešča:
SIST EN ISO 12759:2015
Ventilatorji - Klasifikacija učinkovitosti ventilatorjev - 4. del: Ventilatorji s pogonom
pri največji obratovalni hitrosti (ISO 12759-4:2019)
Fans - Efficiency classification for fans - Part 4: Driven fans at maximum operating speed
(ISO 12759-4:2019)
Ventilatoren - Effizienzklassifizierung für Ventilatoren - Teil 4: Angetriebene Ventilatoren
bei maximaler Betriebsdrehzahl (ISO 12759-4:2019)
Ventilateurs - Classification du rendement des ventilateurs - Partie 4: Ventilateurs
entraînés à vitesse maximale de fonctionnement (ISO 12759-4:2019)
Ta slovenski standard je istoveten z: EN ISO 12759-4:2019
ICS:
23.120 Zračniki. Vetrniki. Klimatske Ventilators. Fans. Air-
naprave conditioners
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN ISO 12759-4
EUROPEAN STANDARD
NORME EUROPÉENNE
November 2019
EUROPÄISCHE NORM
ICS 23.120 Supersedes EN ISO 12759:2015
English Version
Fans - Efficiency classification for fans - Part 4: Driven fans
at maximum operating speed (ISO 12759-4:2019)
Ventilateurs - Classification du rendement des Ventilatoren - Effizienzklassifizierung für Ventilatoren
ventilateurs - Partie 4: Ventilateurs entraînés à vitesse - Teil 4: Angetriebene Ventilatoren bei maximaler
maximale de fonctionnement (ISO 12759-4:2019) Betriebsdrehzahl (ISO 12759-4:2019)
This European Standard was approved by CEN on 4 October 2019.
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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, 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: Rue de la Science 23, B-1040 Brussels
© 2019 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 12759-4:2019 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
European foreword
This document (EN ISO 12759-4:2019) has been prepared by Technical Committee ISO/TC 117 "Fans"
in collaboration with 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 May 2020, and conflicting national standards shall be
withdrawn at the latest by May 2020.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN ISO 12759:2015.
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, France, Germany, Greece, Hungary, Iceland,
Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the
United Kingdom.
Endorsement notice
The text of ISO 12759-4:2019 has been approved by CEN as EN ISO 12759-4:2019 without any
modification.
INTERNATIONAL ISO
STANDARD 12759-4
First edition
2019-10
Fans — Efficiency classification for
fans —
Part 4:
Driven fans at maximum operating
speed
Ventilateurs — Classification du rendement des ventilateurs —
Partie 4: Ventilateurs entraînés à vitesse maximale de fonctionnement
Reference number
ISO 12759-4:2019(E)
©
ISO 2019
ISO 12759-4:2019(E)
© ISO 2019
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting
on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address
below or ISO’s member body in the country of the requester.
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Published in Switzerland
ii © ISO 2019 – All rights reserved
ISO 12759-4:2019(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Symbols . 5
5 General information . 5
5.1 General . 5
5.2 Use of installation categories . 6
5.3 Efficiency calculation . 7
5.4 Tolerances . 8
6 Ratings. 8
6.1 General . 8
6.2 Driven fans . 8
6.3 Axial, forward curved centrifugal, radial and mixed flow driven fan efficiency grades . 9
6.4 Centrifugal backward bladed fan with and without housing driven fan efficiency grades 11
6.5 Cross flow driven fan efficiency grades .13
Annex A (normative) Examples of applying efficiency lines to driven fans .15
Annex B (informative) Compensation factors .18
Annex C (informative) The variation of fan performance between installation categories .19
Annex D (informative) Selection of fans for best efficiency .20
Annex E (informative) Explanatory note .23
Bibliography .25
ISO 12759-4:2019(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/ directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www .iso .org/ patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to the
World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see www .iso .org/
iso/ foreword .html.
This document was prepared by Technical Committee ISO/TC 117, Fans.
1)
This first edition of ISO 12759-4, together with ISO 12759-1, ISO 12759-2, ISO 12759-3, ISO 12759-5
2)
and ISO 12759-6 , cancels and replaces ISO 12759:2010, which has been technically revised. It also
incorporates the Amendment ISO 12759:2010/Amd.1:2013.
A list of all parts in the ISO 12759 series can be found on the ISO website.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www .iso .org/ members .html.
1) Under preparation. Stage at the time of publication: ISO/DIS 12759-5:2019.
2) Under preparation. Stage at the time of publication: ISO/CD 12759-6:2019.
iv © ISO 2019 – All rights reserved
ISO 12759-4:2019(E)
Introduction
The last decade has seen an escalation in the price and an increasing recognition of the finite life of
many of the fossil fuels currently used. There is also a belief by many that climatic change is due to
increasing levels of carbon dioxide in the atmosphere. This has led to many nations reviewing methods
of energy generation and usage.
To maintain economic growth there is therefore a need to promote energy efficiency. This requires
better selection of equipment by users and thus better design of this equipment by manufacturers.
Fans of all types are used for ventilation, air conditioning, process engineering – drying, pneumatic
conveying – combustion air supply and agriculture. Indeed, the energy use of fans has been calculated
to account for nearly 20 % of the global electricity usage.
The fan industry is global in nature, with a considerable degree of exporting and licensing. To ensure
that the definitive fan performance characteristics are common throughout the world, a series of
standards has been developed. It is the belief of the industry that there is now a need for minimum
efficiency standards to be recognised. To encourage their implementation, a classification system is
proposed which incorporates a series o
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