Fans - Efficiency classification for fans - Part 5: Jet fans (ISO 12759-5:2021)

This document establishes a classification of fan efficiency for all jet fan types driven by motors with an
electrical input power range from 5,5 kW to 155 kW (and this is likely to be in the size range 500 mm to
1600 mm diameter with motors rated between 5,5 kW and 150 kW from IEC 60034-30-1).
This document is not applicable to jet fans for use in enclosed car parks.
This document can be used by legislators or regulatory bodies for defining future energy saving targets.

Ventilatoren - Effizienzklassifizierung für Ventilatoren - Teil 5: Strahlventilatoren (ISO 12759-5:2021)

Dieses Dokument legt eine Klassifizierung des Ventilatorwirkungsgrades für Strahlventilatoren jeglicher Bauart fest, die von Motoren mit einer elektrischen Eingangsleistung im Bereich von 5,5 kW bis 155 kW angetrieben werden (dies entspricht in etwa dem Größenbereich von 500 mm bis 1 600 mm Durchmesser und Motoren im Nennleistungsbereich zwischen 5,5 kW und 150 kW nach IEC 60034 34 1).
Dieses Dokument ist nicht anwendbar auf Strahlventilatoren für den Einsatz in geschlossenen Parkhäusern.
Dieses Dokument kann durch Gesetzgeber oder Regulierungsbehörden für die Festlegung zukünftiger Ziele zur Energieeinsparung genutzt werden.

Ventilateurs - Classification du rendement des ventilateurs - Partie 5 : Ventilateurs accélérateurs (ISO 12759-5:2021)

Ventilatorji - Klasifikacija učinkovitosti ventilatorjev - 5. del: Potisni ventilatorji (ISO 12759-5:2021)

General Information

Status
Published
Public Enquiry End Date
04-Jun-2019
Publication Date
16-Aug-2021
Technical Committee
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
22-Jul-2021
Due Date
26-Sep-2021
Completion Date
17-Aug-2021

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SLOVENSKI STANDARD
SIST EN ISO 12759-5:2021
01-september-2021
Nadomešča:
SIST EN ISO 12759:2015

Ventilatorji - Klasifikacija učinkovitosti ventilatorjev - 5. del: Potisni ventilatorji

(ISO 12759-5:2021)
Fans - Efficiency classification for fans - Part 5: Jet fans (ISO 12759-5:2021)

Ventilatoren - Effizienzklassifizierung für Ventilatoren - Teil 5: Strahlventilatoren (ISO

12759-5:2021)

Ventilateurs - Classification du rendement des ventilateurs - Partie 5 : Ventilateurs

accélérateurs (ISO 12759-5:2021)
Ta slovenski standard je istoveten z: EN ISO 12759-5:2021
ICS:
23.120 Zračniki. Vetrniki. Klimatske Ventilators. Fans. Air-
naprave conditioners
SIST EN ISO 12759-5:2021 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
SIST EN ISO 12759-5:2021
---------------------- Page: 2 ----------------------
SIST EN ISO 12759-5:2021
EN ISO 12759-5
EUROPEAN STANDARD
NORME EUROPÉENNE
July 2021
EUROPÄISCHE NORM
ICS 23.120
English Version
Fans - Efficiency classification for fans - Part 5: Jet fans
(ISO 12759-5:2021)

Ventilateurs - Classification du rendement des Ventilatoren - Effizienzklassifizierung für Ventilatoren

ventilateurs - Partie 5 : Ventilateurs accélérateurs (ISO - Teil 5: Strahlventilatoren (ISO 12759-5:2021)

12759-5:2021)
This European Standard was approved by CEN on 28 June 2021.

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

© 2021 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 12759-5:2021 E

worldwide for CEN national Members.
---------------------- Page: 3 ----------------------
SIST EN ISO 12759-5:2021
EN ISO 12759-5:2021 (E)
Contents Page

European foreword ....................................................................................................................................................... 3

---------------------- Page: 4 ----------------------
SIST EN ISO 12759-5:2021
EN ISO 12759-5:2021 (E)
European foreword

This document (EN ISO 12759-5:2021) 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 January 2022, and conflicting national standards shall

be withdrawn at the latest by January 2022.

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.

Any feedback and questions on this document should be directed to the users’ national standards

body/national committee. A complete listing of these bodies can be found on the CEN websites.

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 12759-5:2021 has been approved by CEN as EN ISO 12759-5:2021 without any

modification.
---------------------- Page: 5 ----------------------
SIST EN ISO 12759-5:2021
---------------------- Page: 6 ----------------------
SIST EN ISO 12759-5:2021
INTERNATIONAL ISO
STANDARD 12759-5
First edition
2021-06
Fans — Efficiency classification for
fans —
Part 5:
Jet fans
Ventilateurs — Classification du rendement des ventilateurs —
Partie 5: Ventilateurs accélérateurs
Reference number
ISO 12759-5:2021(E)
ISO 2021
---------------------- Page: 7 ----------------------
SIST EN ISO 12759-5:2021
ISO 12759-5:2021(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2021

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.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2021 – All rights reserved
---------------------- Page: 8 ----------------------
SIST EN ISO 12759-5:2021
ISO 12759-5:2021(E)
Contents  Page

Foreword ........................................................................................................................................................................................................................................iv

Introduction ..................................................................................................................................................................................................................................v

1  Scope ................................................................................................................................................................................................................................. 1

2  Normative references ...................................................................................................................................................................................... 1

3  Terms and definitions ..................................................................................................................................................................................... 1

3.1 Fans ................................................................................................................................................................................................................... 1

3.2 Quantities .................................................................................................................................................................................................... 2

3.3 Fan efficiency ............................................................................................................................................................................................ 2

3.4 Fan efficiency grades.......................................................................................................................................................................... 3

4  Fan installation, efficiency and tolerance ................................................................................................................................... 3

4.1 General ........................................................................................................................................................................................................... 3

4.2 Reference configuration of a jet fan ...................................................................................................................................... 3

4.3 Use of installation categories ...................................................................................................................................................... 3

4.3.1 General...................................................................................................................................................................................... 3

4.3.2 Configuration E installations ................................................................................................................................. 3

5  Ratings............................................................................................................................................................................................................................. 3

5.1 General ........................................................................................................................................................................................................... 3

5.2 Jet fans ............................................................................................................................................................................................................ 4

Annex A (informative) Calculation of jet fan efficiency ..................................................................................................................... 7

Annex B (informative) Determination of efficiency grade for a jet fan ............................................................................ 8

Bibliography ................................................................................................................................................................................................................................ 9

© ISO 2021 – All rights reserved iii
---------------------- Page: 9 ----------------------
SIST EN ISO 12759-5:2021
ISO 12759-5:2021(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, in collaboration with the

European Committee for Standardization (CEN) Technical Committee CEN/TC 156, Ventilation for

buildings, in accordance with the Agreement on technical cooperatio
...

SLOVENSKI STANDARD
oSIST prEN ISO 12759-5:2019
01-maj-2019
[Not translated]

Fans - Efficiency classification for fans - Part 5: Jet fans (ISO/DIS 12759-5:2019)

Ventilatoren - Effizienzklassifizierung für Ventilatoren (ISO/DIS 12759:2019)

Ventilateurs - Classification du rendement des ventilateurs - Partie 5 : Ventilateurs

accélérateurs (ISO/DIS 12759-5:2019)
Ta slovenski standard je istoveten z: prEN ISO 12759-5
ICS:
23.120 =UDþQLNL9HWUQLNL.OLPDWVNH Ventilators. Fans. Air-
QDSUDYH conditioners
oSIST prEN ISO 12759-5:2019 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
oSIST prEN ISO 12759-5:2019
---------------------- Page: 2 ----------------------
oSIST prEN ISO 12759-5:2019
DRAFT INTERNATIONAL STANDARD
ISO/DIS 12759-5
ISO/TC 117 Secretariat: BSI
Voting begins on: Voting terminates on:
2019-04-02 2019-06-25
Fans — Efficiency classification for fans —
Part 5:
Jet fans
ICS: 23.120
THIS DOCUMENT IS A DRAFT CIRCULATED
This document is circulated as received from the committee secretariat.
FOR COMMENT AND APPROVAL. IT IS
THEREFORE SUBJECT TO CHANGE AND MAY
NOT BE REFERRED TO AS AN INTERNATIONAL
STANDARD UNTIL PUBLISHED AS SUCH.
IN ADDITION TO THEIR EVALUATION AS
ISO/CEN PARALLEL PROCESSING
BEING ACCEPTABLE FOR INDUSTRIAL,
TECHNOLOGICAL, COMMERCIAL AND
USER PURPOSES, DRAFT INTERNATIONAL
STANDARDS MAY ON OCCASION HAVE TO
BE CONSIDERED IN THE LIGHT OF THEIR
POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN
Reference number
NATIONAL REGULATIONS.
ISO/DIS 12759-5:2019(E)
RECIPIENTS OF THIS DRAFT ARE INVITED
TO SUBMIT, WITH THEIR COMMENTS,
NOTIFICATION OF ANY RELEVANT PATENT
RIGHTS OF WHICH THEY ARE AWARE AND TO
PROVIDE SUPPORTING DOCUMENTATION. ISO 2019
---------------------- Page: 3 ----------------------
oSIST prEN ISO 12759-5:2019
ISO/DIS 12759-5:2019(E)
COPYRIGHT PROTECTED DOCUMENT
© 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.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Fax: +41 22 749 09 47
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2019 – All rights reserved
---------------------- Page: 4 ----------------------
oSIST prEN ISO 12759-5:2019
ISO/DIS 12759-5:2019(E)
Contents  Page

Foreword ........................................................................................................................................................................................................................................iv

Introduction ..................................................................................................................................................................................................................................v

1  Scope ................................................................................................................................................................................................................................. 1

2  Normative references ...................................................................................................................................................................................... 1

3  Terms and definitions ..................................................................................................................................................................................... 1

3.1 Fans — General ....................................................................................................................................................................................... 2

3.2 Fan or test installation categories according to the arrangement of ducting ................................... 2

3.3 Fans — Definitions relating to calculations ................................................................................................................... 2

3.4 Definitions relating to fan efficiency .................................................................................................................................... 4

3.5 Fan efficiency grades.......................................................................................................................................................................... 4

4  Symbols and Units ............................................................................................................................................................................................... 4

5  Fan installation, efficiency and tolerance ................................................................................................................................... 5

5.1 General ........................................................................................................................................................................................................... 5

5.2 Reference Configuration of a Jet Fan can be defined as: ..................................................................................... 5

5.3 Use of installation categories ...................................................................................................................................................... 5

6  Ratings............................................................................................................................................................................................................................. 6

6.1 General ........................................................................................................................................................................................................... 6

6.2 Jet fans ............................................................................................................................................................................................................ 6

Annex A (Normative) Calculation of Jet Fan Efficiency ...................................................................................................................... 9

Annex B (normative) Determination of efficiency grade for a jet fan .............................................................................11

Bibliography .............................................................................................................................................................................................................................12

© ISO 2019 – All rights reserved iii
---------------------- Page: 5 ----------------------
oSIST prEN ISO 12759-5:2019
ISO/DIS 12759-5:2019(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 on 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 the following URL: www .iso .org/iso/foreword .html.

The committee responsible for this document is Technical Committee ISO/TC 117 Fans.

A list of all parts in the ISO 12759:— series can be found on the ISO website.
iv © ISO 2019 – All rights reserved
---------------------- Page: 6 ----------------------
oSIST prEN ISO 12759-5:2019
ISO/DIS 12759-5:2019(E)
Introduction

The last decade has seen not only an escalation in the price, but also an increasing recognition of the

finite life of many of the fossil fuels in use. There is also a belief that climatic change is due to an increase

in the levels of carbon dioxide in the atmosphere. This has resulted in many nations reviewing methods

of energy generation and usage.

Therefore, there is a need to promote energy efficiency in order to maintain economic growth. This

requires better selection of equipment by users and better design of this equipment by manufacturers.

Fans of all types are used for ventilation and air conditioning, process engineering (drying, pneumatic

conveying), combustion air supply and agriculture, etc. Indeed, the energy usage by fans has been

calculated as nearly 20 % of worldwide demand.

The fan industry is of a global nature, with a considerable degree of exporting and licensing. To ensure

that defined fan performance characteristics are common throughout the world, a series of International

Standards has been developed. It is the belief of the industry that there is a need for the recognition of

minimum efficiency standards. To encourage their implementation, a classification system is proposed

which incorporates a series of efficiency bands. With improvements in technology and manufacturing

processes, the minimum efficiency levels can be reviewed and increased over time.

This International Standard can be used by legislators or regulatory bodies for defining future energy

saving targets.
Part 5 is specific to Jet Fans whose efficiency ratings are based on Thrust.
© ISO 2019 – All rights reserved v
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oSIST prEN ISO 12759-5:2019
---------------------- Page: 8 ----------------------
oSIST prEN ISO 12759-5:2019
DRAFT INTERNATIONAL STANDARD ISO/DIS 12759-5:2019(E)
Fans — Efficiency classification for fans —
Part 5:
Jet fans
1  Scope

This International Standard establishes a classification of fan efficiency for all jet fan types driven by

motors with an electrical input power range from 5.5 kW to 155 kW (and this is likely to be in the size

range 500 to 1600 mm diameter with motors rated between 5.5 kW to 150 kW from IEC 60034-34-1).

This standard 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 parts 3, 4, 5 and 6. There is no

method described to compare these classifications and MEL’s. Direct comparison shall not be made

between the classifications and MEL’s described in parts 3, 4, 5 and 6.
This International Standard is not applicable to:
a) Jet fans for use in enclosed car parks
2  Normative references

The following referenced documents are indispensable for the application of this document. For dated

references, only the edition cited applies. For undated references, the latest edition of the referenced

document (including any amendments) applies.

ISO 13348:2007, Industrial fans — Tolerances, methods of conversion and technical data presentation

ISO 13349:2010, Fans — Vocabulary and definitions of categories
ISO 13350:2015, Fans — Performance testing of jet fans

EN 12101-3:2015, Smoke and heat control systems. Specification for powered smoke and heat control

ventilators (Fans)

IEC 60034-2-1, Rotating electrical machines — Part 2-1: Standard methods for determining losses and

efficiency from tests (excluding machines for traction vehicles)

IEC 60034-30-1, Rotating electrical machines — Part 30-1: Efficiency classes of single-speed, three-phase,

squirrel-cage induction motors
3  Terms and definitions
For the purposes of this document, the following terms and definitions apply.
© ISO 2019 – All rights reserved 1
---------------------- Page: 9 ----------------------
oSIST prEN ISO 12759-5:2019
ISO/DIS 12759-5:2019(E)
3.1  Fans — General
3.1.1
Fan

Rotary bladed machine which receives mechanical energy and utilizes it by means of one or more

impellers fitted with blades to maintain a continuous flow of air or other gas passing through it and

whose work per unit mass does not normally exceed 25 kJ/kg

Note 1 to entry: Fans are defined according to their installation category, function, fluid path and operating

conditions.
Note 2 to entry: Adapted from ISO 13349:2010, definition 3.1.1.
3.1.2
Jet fan

fan used for producing a jet of air in a space and not connected to any ducting, that is t

...

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