CEN ISO/TR 52120-2:2022

SLOVENSKI STANDARD
01-maj-2022
Nadomešča:
SIST-TP CEN/TR 15232-2:2018
Energijske lastnosti stavb - Vpliv avtomatizacije, regulacije in upravljanja stavb - 2.
del: Razlaga in utemeljitev ISO 52120-1 (ISO/TR 52120-2:2021)
Energy performance of buildings - Contribution of building automation, controls and
building management - Part 2: Explanation and justification of ISO 52120-1 (ISO/TR
52120-2:2021)
Energieeffizienz von Gebäuden - Einfluss von Gebäudeautomation und
Gebäudemanagement - Teil 2: Erläuterung und Begründung von ISO 52120-1 (ISO/TR
52120-2:2021)
Performance énergétique des bâtiments - Impact de l’automatisation, de la régulation et
de la gestion technique des bâtiments - Partie 2: Explication et justification de l'ISO
52120-1 (ISO/TR 52120-2:2021)
Ta slovenski standard je istoveten z: CEN ISO/TR 52120-2:2022
ICS:
35.240.67 Uporabniške rešitve IT v IT applications in building
gradbeništvu and construction industry
91.120.10 Toplotna izolacija stavb Thermal insulation of
buildings
97.120 Avtomatske krmilne naprave Automatic controls for
za dom household use
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

CEN ISO/TR 52120-2
TECHNICAL REPORT
RAPPORT TECHNIQUE
March 2022
TECHNISCHER BERICHT
ICS 91.120.10 Supersedes CEN/TR 15232-2:2016
English Version
Energy performance of buildings - Contribution of building
automation, controls and building management - Part 2:
Explanation and justification of ISO 52120-1 (ISO/TR
52120-2:2021)
Performance énergétique des bâtiments - Impact de Energieeffizienz von Gebäuden - Einfluss von
l'automatisation, de la régulation et de la gestion Gebäudeautomation und Gebäudemanagement - Teil 2:
technique des bâtiments - Partie 2: Explication et Erläuterung und Begründung von ISO 52120-1
justification de l'ISO 52120-1 (ISO/TR 52120-2:2021) (ISO/TR 52120-2:2021)

This Technical Report was approved by CEN on 23 June 2020. It has been drawn up by the Technical Committee CEN/TC 247.

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
© 2022 CEN All rights of exploitation in any form and by any means reserved Ref. No. CEN ISO/TR 52120-2:2022 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (CEN ISO/TR 52120-2:2022) has been prepared by Technical Committee ISO/TC 205
"Building environment design" in collaboration with Technical Committee CEN/TC 247 “Building
Automation, Controls and Building Management” the secretariat of which is held by SNV.
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 CEN/TR 15232-2:2016.
This document has been prepared under a Standardization Request given to CEN by the European
Commission and the European Free Trade Association.
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 website.
Endorsement notice
The text of ISO/TR 52120-2:2021 has been approved by CEN as CEN ISO/TR 52120-2:2022 without any
modification.
TECHNICAL ISO/TR
REPORT 52120-2
First edition
2021-12
Energy performance of buildings —
Contribution of building automation,
controls and building management —
Part 2:
Explanation and justification of ISO
52120-1
Performance énergétique des bâtiments — Impact de
l’automatisation, de la régulation et de la gestion technique des
bâtiments —
Partie 2: Explication et justification de l'ISO 52120-1
Reference number
ISO/TR 52120-2:2021(E)
ISO/TR 52120-2:2021(E)
© 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/TR 52120-2:2021(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Symbols and abbreviated terms.1
4.1 Symbols . 1
4.2 Abbreviated terms . 1
5 Method description .2
5.1 Effect of building automation and control (BAC) and technical building
management (TBM) . 2
5.1.1 General . 2
5.1.2 Control accuracy . 2
5.1.3 Control function . 3
5.1.4 Control strategy . 4
5.2 Description of BAC functions . 5
5.2.1 General . 5
5.2.2 Heating control . 5
5.2.3 Domestic hot water supply control . 10
5.2.4 Cooling control . 12
5.2.5 Ventilation and air conditioning control . 17
5.2.6 Lighting control .22
5.2.7 Blind control . 24
5.3 Method 1 - Impact of BAC and TBM on the energy performance of buildings
(detailed method) . 24
5.3.1 Rationale . 24
5.3.2 Time steps . 24
5.3.3 Assumptions . 25
5.3.4 Data input . 25
5.3.5 Simplified input . 25
5.3.6 Calculation information .25
5.4 Method 2 – Impact of BAC and TBM on the energy performance of buildings (BACS
factor method) . 39
5.4.1 Rationale . 39
5.4.2 Time steps . 39
5.4.3 Calculation information .39
6 Method selection .40
7 Worked out examples .41
8 Information on the accompanying spreadsheet .42
Bibliography .43
iii
ISO/TR 52120-2:2021(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 o
...