EN IEC 63159-2-2:2021

SLOVENSKI STANDARD
01-februar-2022
Gospodinjski električni pretočni grelniki vode - Metode za merjenje lastnosti - 2-2.
del: Učinkovitost električnih pretočnih grelnikov vode z eno točko odjema
Household electric instantaneous water heaters - Methods for measuring the
performance - Part 2-2: Efficiency of single point of use electric instantaneous water
heaters
Ta slovenski standard je istoveten z: EN IEC 63159-2-2:2021
ICS:
91.140.65 Oprema za ogrevanje vode Water heating equipment
97.100.10 Električni grelniki Electric heaters
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN IEC 63159-2-2

NORME EUROPÉENNE
EUROPÄISCHE NORM
November 2021
ICS 91.140.65
English Version
Household electric instantaneous water heaters - Methods for
measuring the performance - Part 2-2: Efficiency of single point
of use electric instantaneous water heaters
(IEC 63159-2-2:2021)
Chauffe-eau instantanés électrodomestiques - Méthodes de Elektro-Durchfluss-Wassererwärmer für den Hausgebrauch
mesure de l'aptitude à la fonction - Partie 2-2: Rendement - Prüfverfahren zur Messung der Gebrauchseigenschaften -
des chauffe-eau instantanés électriques à un seul point Teil 2-2: Effizienz von Durchfluss-Wassererwärmern für
d'utilisation eine einzelne Zapfstelle
(IEC 63159-2-2:2021) (IEC 63159-2-2:2021)
This European Standard was approved by CENELEC on 2021-11-25. CENELEC 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 CENELEC 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 CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the
same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the
Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.

European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2021 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 63159-2-2:2021 E

European foreword
The text of document 59C/269/FDIS, future edition 1 of IEC 63159-2-2, prepared by SC 59C
“Electrical heating appliances for household and similar purposes” of IEC/TC 59 “Performance of
household and similar electrical appliances” was submitted to the IEC-CENELEC parallel vote and
approved by CENELEC as EN IEC 63159-2-2:2021.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2022–08–25
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2024–11–25
document have to be withdrawn
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.
This document is read in conjunction with EN IEC 63159-1:2021.
Any feedback and questions on this document should be directed to the users’ national committee. A
complete listing of these bodies can be found on the CENELEC website.
Endorsement notice
The text of the International Standard IEC 63159-2-2:2021 was approved by CENELEC as a
European Standard without any modification.
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
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.
NOTE 1 Where an International Publication has been modified by common modifications, indicated by (mod), the
relevant EN/HD applies.
NOTE 2 Up-to-date information on the latest versions of the European Standards listed in this annex is available
here: www.cenelec.eu.
The Annex ZA of EN IEC 63159-1:2021 applies with the following changes:
Publication Year Title EN/HD Year
Add the following reference:
IEC 63159-1 2021 Household electric instantaneous water EN IEC 63159-1 2021
heaters - Methods for measuring the
performance - Part 1: General aspects

IEC 63159-2-2 ®
Edition 1.0 2021-10
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Household electric instantaneous water heaters – Methods for measuring the

performance –
Part 2-2: Efficiency of single point of use electric instantaneous water heaters

Chauffe-eau instantanés électrodomestiques – Méthodes de mesure de

l'aptitude à la fonction –
Partie 2-2: Rendement des chauffe-eau instantanés électriques à un seul point

d'utilisation
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 91.140.65 ISBN 978-2-8322-1040-7

– 2 – IEC 63159-2-2:2021 © IEC 2021
CONTENTS
FOREWORD . 3
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 General test conditions . 5
4.3 General conditions . 5
4.3.101 Pressure, temperature, flow, and power conditions . 5
4.4 Test setup . 6
5 Energy efficiency . 6
5.1 Test method . 6
5.1.1 General . 6
5.1.1.101 Setpoints . 6
5.1.2 Static efficiency . 6
5.1.3 Start up losses . 6
5.2.2 Daily energy demand . 6
Annex A (normative) Load pattern . 7
Annex B (normative) Test setup . 8
Bibliography . 11

Figure B.1 – Test setup for open-outlet instantaneous heater . 8
Figure B.2 – Test setup for open-outlet instantaneous heater . 9
Figure B.3 – Example of thermocouple housing . 9
Figure B.4 – Outlet funnel . 10

IEC 63159-2-2:2021 © IEC 2021 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
HOUSEHOLD ELECTRIC INSTANTANEOUS WATER HEATERS –
METHODS FOR MEASURING THE PERFORMANCE –

Part 2-2: Efficiency of single point of use electric
instantaneous water heaters
FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international
co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and
in addition to other ac
...