prEN 17291

SLOVENSKI STANDARD
01-december-2018
[Not translated]
Fans - Procedures and methods to determine and evaluate the energy efficiency of non-
residential unidirectional ventilation units
Ventilatoren - Verfahren und Methoden zur Ermittlung und Beurteilung der
Energieeffizienz von Ein-Richtung-Lüftungsgeräten im Nichtwohnbereich
Ta slovenski standard je istoveten z: prEN 17291
ICS:
23.120 =UDþQLNL9HWUQLNL.OLPDWVNH Ventilators. Fans. Air-
QDSUDYH conditioners
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

DRAFT
EUROPEAN STANDARD
NORME EUROPÉENNE
EUROPÄISCHE NORM
October 2018
ICS 23.120
English Version
Fans - Procedures and methods to determine and evaluate
the energy efficiency of non-residential unidirectional
ventilation units
Ventilatoren - Verfahren und Methoden zur Ermittlung
und Beurteilung der Energieeffizienz von Ein-
Richtung-Lüftungsgeräten im Nichtwohnbereich
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee
CEN/TC 156.
If this draft becomes a European Standard, 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.

This draft European Standard was established by CEN 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, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and United Kingdom.
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.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without
notice and shall not be referred to as a European Standard.

EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2018 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 17291:2018 E
worldwide for CEN national Members.

Contents Page
European foreword . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 Requirements . 16
4.1 Eco-design requirements . 16
4.1.1 General . 16
4.1.2 Identify the unit and if intended to be used with a filter . 16
4.2 Information requirements . 17
4.2.1 General . 17
4.2.2 Requirements . 17
5 Testing and calculation methods . 18
5.1 General . 18
5.2 Test method to determine the ventilation unit efficiency (UVU efficiency) in the
reference configuration without a filter . 18
5.2.1 General . 18
5.2.2 Ventilation unit efficiency (UVU efficiency) . 18
5.2.3 Nominal operating conditions . 19
5.3 Determination of internal specific fan power. 20
5.3.1 General . 20
5.3.2 Internal specific fan power calculation method for reference configuration unit with
filter . 20
5.3.3 Calculation with non-ventilation components . 21
6 Evaluation of conformity . 21
6.1 General . 21
6.2 Ventilation unit efficiency (ƞ ) . 21
vu
6.3 Internal Specific Fan Power (SFPint) . 21
6.4 Filter monitoring . 22
6.5 Information requirements . 22
7 Classification and designation . 22
8 Marking, labelling and packaging . 22
8.1 Marking . 22
8.2 Product information requirements on unidirectional ventilation units . 22
9 Installation and maintenance information . 22
Annex A (informative) How to use the standard . 24
A.1 Determine if the product is within scope and what should be applied . 24
Annex B (normative) Internal specific fan power (SFP ) . 25
int
B.1 General . 25
B.2 Method . 25
B.3 Example of calculation method . 30
Annex C (informative) External leakage. 31
C.1 General . 31
C.2 Measurement . 31
Annex D (informative) Overall A-weighted casing sound power level. 36
D.1 General . 36
D.2 Definitions . 36
D.3 Requirements . 37
Annex ZA (informative) Relationship between this European Standard and the essential
requirements of EU Directive 2009/125/EC and Commission Regulation (EC) No
1253/2014 . 40
Bibliography . 42
European foreword
This document (prEN 17291:2018) has been prepared by Technical Committee CEN/TC 156 “Ventilation
for buildings”, the secretariat of which is held by BSI.
This document is currently submitted to the CEN Enquiry.
This document has been prepared under a standardization request given to CEN by the European
Commission and the European Free Trade Association, and supports essential requirements of
EU Directive 2009/125/EC and Commission Regulation (EC) No 1253/2014.
For relationship with EU Directive 2009/125/EC, see informative Annex ZA, which is an integral part of
this document.
1 Scope
This document provides procedures and methods for measuring and calculating the energy efficiency and
associated characteristics of non-residential unidirectional ventilation units when driven by electric
motors.
Unidirectional ventilation units include roof fans and box fans.
This document includes unidirectional ventilation units with and without filters.
Additional air treatment items are considered in this document but are excluded in the determination of
the efficiency of the product.
This document does not include:
— residential unidirectional and bidirectional ventilation units,
— non-residential bidirectional ventilation units.
NOTE 1 Residential unidirectional ventilation units are under the remit of CEN/TC 156/WG 2.
NOTE 2 Non-residential bidirectional ventilation units are under the remit of CEN/TC 156/WG 5.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements 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.
EN 779, Particulate air filters for general ventilation — Determination of the filtration performance
EN 1886, Ventilation for buildings — Air handling units — Mechanical performance
EN ISO 5801, Fans — Performance testing using standardized airways (ISO 5801)
prEN 17166, Fans — Procedures and methods to determine the energy efficiency for the electrical input
power range of 125 W up to 500 kW
EN ISO 12759, Fans — Efficiency classification for fans (ISO 12759)
EN ISO 13349, Fans — Vocabulary and definitions of categories (ISO 13349)
ISO 13347 (all parts), Industrial fans — Determination of fan sound power levels under standardized
laboratory conditions
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN ISO 5801 and prEN 17166 and
the following apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— IEC Electropedia: available at http://www.electropedia.org/
— ISO Online browsing platform: available at http://www.iso.org/obp
3.1
fan
rotary-bladed machine that 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
In this standard, the word fan means an assembly of an impeller, bearing, transmission, housing, motor
and other significant elements within a boundary as defined in prEN 17166 and a variable speed drive if
fitted
[SOURCE: EN ISO 13349:2010, definition 3.1.1]
[SOURCE: prEN 17166]
3.2
ventilation unit (VU)
electrically driven appliance equipped with at least one impeller, one motor and a casing
[SOURCE: Regulation (EU) No 1253/2014, article 2, definition (1)]
3.3
unidirectional ventilation unit (UVU)
ventilation unit producing an air flow in one direction only, either for exhaust or for supply
3.4
non-reside
...