SIST EN ISO 52120-1:2022
(Main)Energy performance of buildings - Contribution of building automation, controls and building management - Part 1: General framework and procedures (ISO 52120-1:2021, Corrected version 2022-09)
Energy performance of buildings - Contribution of building automation, controls and building management - Part 1: General framework and procedures (ISO 52120-1:2021, Corrected version 2022-09)
This European Standard specifies:
- a structured list of control, building automation and technical building management functions which contribute to the energy performance of buildings; functions have been categorized and structured according to building disciplines and so called Building automation and control (BAC);
- a method to define minimum requirements or any specification regarding the control, building automation and technical building management functions contributing to energy efficiency of a building to be implemented in building of different complexities;
- a factor based method to get a first estimation of the effect of these functions on typical buildings types and use profiles;
- detailed methods to assess the effect of these functions on a given building.
Table 1 shows the relative position of this standard within the set of EPB standards in the context of the modular structure as set out in EN ISO 52000 1.
NOTE 1 In CEN ISO/TR 52000 2 the same table can be found, with, for each module, the numbers of the relevant EPB standards and accompanying technical reports that are published or in preparation.
NOTE 2 The modules represent EPB standards, although one EPB standard may cover more than one module and one module may be covered by more than one EPB standard, for instance a simplified and a detailed method respectively.
Energieeffizienz von Gebäuden - Einfluss von Gebäudeautomation und Gebäudemanagement - Teil 1: Allgemeiner Rahmen und Verfahren (ISO 52120-1:2021, korrigierte Fassung 2022-09)
Dieses Dokument legt Folgendes fest:
- eine strukturierte Liste von Funktionen der Gebäudeautomation und des technischen Gebäudemanagements, die zur Energieeffizienz von Gebäuden beitragen; die Funktionen wurden entsprechend der Baudisziplinen und der Gebäudeautomation (GA) kategorisiert und strukturiert.
- ein Verfahren zur Festlegung der Mindestanforderungen oder Spezifikationen hinsichtlich der Funktionen der Gebäudeautomation und des technischen Gebäudemanagements, die zur Energieeffizienz von Gebäuden beitragen und die in Gebäuden unterschiedlicher Komplexität umzusetzen sind.
- ein faktorbasiertes Verfahren für eine erste Abschätzung des Einflusses dieser Funktionen auf typische Gebäudetypen und Nutzungsprofile.
- ausführliche Verfahren zur Bewertung des Einflusses dieser Funktionen auf ein bestimmtes Gebäude.
Performance énergétique des bâtiments - Contribution de l’automatisation, de la régulation et de la gestion technique des bâtiments - Partie 1: Cadre général et procédures (ISO 52120-1:2021, Version corrigée 2022-09)
Ce document spécifie:
— une liste structurée des fonctions de régulation, d’automatisation et de gestion technique du bâtiment qui contribuent à la performance énergétique des bâtiments; les fonctions ont été classées en catégories et structurées conformément aux disciplines du bâtiment et de ce qui s’appelle l’automatisation et la régulation du bâtiment (BAC, building automation and control);
— une méthode pour définir les exigences minimales ou toute spécification concernant les fonctions de régulation, d’automatisation et de gestion technique du bâtiment à mettre en œuvre dans des bâtiments de différentes complexités et contribuant à leur efficacité énergétique;
— une méthode basée sur des facteurs pour obtenir une première estimation de l’effet de ces fonctions sur les types de bâtiments et les profils d’utilisation courants;
— des méthodes détaillées pour estimer l’effet de ces fonctions sur un bâtiment donné.
Energijske lastnosti stavb - Vpliv avtomatizacije, regulacije in upravljanja stavb - 1. del: Splošni okvir in postopki (ISO 52120-1:2021, popravljena različica 2022-09)
Ta evropski standard določa:
– strukturiran seznam funkcij za nadzor, avtomatizacijo in tehnično upravljanje stavb, ki prispevajo k energijski učinkovitosti stavb. Funkcije so bile razvrščene v kategorije in strukturirane glede na discipline stavbeništva in t. i. sistem za avtomatizacijo in nadzor stavb (BAC);
– metodo za opredelitev minimalnih zahtev oziroma specifikacije v zvezi s funkcijami za nadzor, avtomatizacijo in tehnično upravljanje stavb, ki prispevajo k energijski učinkovitosti stavb in jih je treba uvesti v različno kompleksnih stavbah;
– metodo, ki temelji na faktorju, za prvo oceno učinka teh funkcij na običajne vrste stavb in profile uporabe;
– natančne metode za oceno učinka teh funkcij na določeno stavbo.
Preglednica 1 prikazuje relativno mesto tega standarda znotraj skupine standardov EPB v kontekstu modularne strukture, kot je opredeljeno v standardu EN ISO 52000-1.
OPOMBA 1: V standardu CEN ISO/TR 52000-2 je za vsak modul mogoče najti enako preglednico s številkami ustreznih standardov EPB in spremnimi tehničnimi poročili, ki so objavljeni ali v pripravi.
OPOMBA 2: Moduli predstavljajo standarde EPB, čeprav lahko en standard EPB zajema več kot en modul, en modul pa je lahko zajet v več kot enem standardu EPB (na primer poenostavljena metoda in podrobna metoda).
General Information
Relations
Buy Standard
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN ISO 52120-1:2022
01-maj-2022
Nadomešča:
SIST EN 15232-1:2018
Energijske lastnosti stavb - Vpliv avtomatizacije, regulacije in upravljanja stavb - 1.
del: Splošni okvir in postopki (ISO 52120-1:2021, popravljena različica 2022-09)
Energy performance of buildings - Contribution of building automation, controls and
building management - Part 1: General framework and procedures (ISO 52120-1:2021,
Corrected version 2022-09)
Energieeffizienz von Gebäuden - Einfluss von Gebäudeautomation und
Gebäudemanagement - Teil 1: Allgemeiner Rahmen und Verfahren (ISO 52120-1:2021,
korrigierte Fassung 2022-09)
Performance énergétique des bâtiments - Contribution de l’automatisation, de la
régulation et de la gestion technique des bâtiments - Partie 1: Cadre général et
procédures (ISO 52120-1:2021, Version corrigée 2022-09)
Ta slovenski standard je istoveten z: EN ISO 52120-1:2022
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
SIST EN ISO 52120-1:2022 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
---------------------- Page: 1 ----------------------
SIST EN ISO 52120-1:2022
---------------------- Page: 2 ----------------------
SIST EN ISO 52120-1:2022
EN ISO 52120-1
EUROPEAN STANDARD
NORME EUROPÉENNE
March 2022
EUROPÄISCHE NORM
ICS 91.120.10 Supersedes EN 15232-1:2017
English Version
Energy performance of buildings - Contribution of building
automation, controls and building management - Part 1:
General framework and procedures (ISO 52120-1:2021,
Corrected version 2022-09)
Performance énergétique des bâtiments - Contribution Energieeffizienz von Gebäuden - Einfluss von
de l'automatisation, de la régulation et de la gestion Gebäudeautomation und Gebäudemanagement - Teil 1:
technique des bâtiments - Partie 1: Cadre général et Allgemeiner Rahmen und Verfahren (ISO 52120-
procédures (ISO 52120-1:2021, Version corrigée 2022- 1:2021, korrigierte Fassung 2022-09)
09)
This European Standard was approved by CEN on 3 December 2021.
This European Standard was corrected and reissued by the CEN-CENELEC Management Centre on 28 September 2022.
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, Türkiye and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATIO N
EUROPÄISCHES KOMITEE FÜR NORMUN G
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. EN ISO 52120-1:2022 E
worldwide for CEN national Members.
---------------------- Page: 3 ----------------------
SIST EN ISO 52120-1:2022
EN ISO 52120-1:2022 (E)
Contents Page
European foreword . 3
2
---------------------- Page: 4 ----------------------
SIST EN ISO 52120-1:2022
EN ISO 52120-1:2022 (E)
European foreword
This document (EN ISO 52120-1:2022) 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.
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 September 2022, and conflicting national standards
shall be withdrawn at the latest by September 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.
This document supersedes EN 15232-1:2017.
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.
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 52120-1:2021, Corrected version 2022-09 has been approved by CEN as EN ISO 52120-
1:2022 without any modification.
3
---------------------- Page: 5 ----------------------
SIST EN ISO 52120-1:2022
---------------------- Page: 6 ----------------------
SIST EN ISO 52120-1:2022
INTERNATIONAL ISO
STANDARD 52120-1
First edition
2021-12
Corrected version
2022-09
Energy performance of buildings —
Contribution of building automation,
controls and building management —
Part 1:
General framework and procedures
Performance énergétique des bâtiments — Contribution de
l’automatisation, de la régulation et de la gestion technique des
bâtiments —
Partie 1: Cadre général et procédures
Reference number
ISO 52120-1:2021(E)
© ISO 2021
---------------------- Page: 7 ----------------------
SIST EN ISO 52120-1:2022
ISO 52120-1:2021(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 52120-1:2022
ISO 52120-1:2021(E)
Contents Page
Foreword .v
Introduction . vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Symbols, subscripts and abbreviated terms . 5
4.1 Symbols . 5
4.2 Subscripts . . 5
4.3 Abbreviated terms . 5
5 Description of the method . 6
5.1 Output of the method . . 6
5.2 General description of the method(s) . 6
5.3 Selection criteria between the methods . 6
5.4 BAC and TBM functions having an impact on the energy performance of buildings . 7
5.5 BAC efficiency class . 21
5.6 BAC and TBM functions assigned to the BAC efficiency classes .22
5.7 Applying BAC for EnMS and maintaining BAC energy efficiency . 32
5.7.1 General . 32
5.7.2 Applying BAC for EnMS . 32
5.7.3 Maintaining BAC energy efficiency . 32
6 Method 1 - Detailed calculation procedure of the BAC contribution to the energy
performance of buildings (detailed method) .33
6.1 Output data . 33
6.2 Calculation time intervals .34
6.3 Input data - Source of data .35
6.4 Calculation procedure . . 35
6.4.1 Applicable calculation time interval . 35
6.4.2 Energy performance calculation . 35
7 Method 2 - Factor based calculation procedure of the BAC impact on the energy
performance of buildings (BAC factor method) .38
7.1 Output data .38
7.2 Calculation time interval .38
7.3 Calculation procedure — Energy calculation .39
7.3.1 General .39
7.3.2 BAC efficiency factor values .40
7.3.3 Application of the BAC efficiency factors . 41
8 Simplified input data correlations . .42
9 Quality control .42
10 C ompl i a nc e c he c k .42
Annex A (informative) BAC efficiency factors .43
Annex B (normative) Minimum BAC function type requirements .48
Annex C (informative) Determination of the BAC efficiency factors .52
Annex D (informative) Examples of how to use the BAC function list of ISO 16484-3 to
describe functions from this document .70
Annex E (informative) Applying BAC for EnMS specified in ISO 50001:2018 .73
Annex F (informative) Maintain BAC energy efficiency .87
Annex G (informative) Control accuracy .90
iii
© ISO 2021 – All rights reserved
---------------------- Page: 9 ----------------------
SIST EN ISO 52120-1:2022
ISO 52120-1:2021(E)
Bibliography .91
iv
© ISO 2021 – All rights reserved
---------------------- Page: 10 ----------------------
SIST EN ISO 52120-1:2022
ISO 52120-1:2021(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 205, Building environment design, in
collaboration with the European Committee for Standardization (CEN) Technical Committee CEN/
TC 247, Building Automation, Controls and Building Management, in accordance with the Agreement on
technical cooperation between ISO and CEN (Vienna Agreement).
A list of all parts in the ISO 52120 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.
This corrected version of ISO 52120-1:2021 incorporates the following corrections:
— Figure C.12 has been replaced.
v
© ISO 2021 – All rights reserved
---------------------- Page: 11 ----------------------
SIST EN ISO 52120-1:2022
ISO 52120-1:2021(E)
Introduction
This document belongs to the family of standards aimed at international harmonization of the
methodology for the assessment of the energy performance of buildings. Throughout, this group of
standards is referred to as a set of called “EPB set of standards”.
All EPB standards follow specific rules to ensure overall consistency, unambiguity and transparency.
This document is clearly identified in the modular structure developed to ensure a transparent and
coherent set of EPB standards, as set out in ISO 52000-1, the overarching EPB standard. BAC (building
automation and control) is identified in the modular structure as technical building system M10.
However, other International Standards issued by ISO TC 205 deal with control accuracy, control
functions and control strategies using standards communications protocol (these last standards do not
belong to the set of EPB standards).
To avoid a duplication of calculation due to the BAC (avoid double impact), no calculation is done in a
BAC EPB standard set, but in each underlying standard of the set of EPB standards (from M1 to M9 in
the modular structure), an identifier developed and present in the M10 covered by this document is
used where appropriate. This way of interaction is described in detail in ISO/TR 52000-2, the Technical
Report accompanying ISO 52000-1. As consequence, the concept of a normative template for specific
(national) choices in Annex A, and Annex B with informative default choices, as commonly used in the
set of EPB standards is not applicable for this document.
The main target groups of this document are all the users of the set of EPB set of standards (e.g.
architects, engineers, regulators).
Further target groups are parties wanting to motivate their assumptions by classifying the building
energy performance for a dedicated building stock.
[5]
More information is provided in the Technical Report accompanying this document (ISO/TR 52120-2 ).
NOTE 1 Table 1 shows the relative position of this document within the set of EPB standards in the context of
the modular structure as set out in ISO 52000-1.
NOTE 2 In ISO/TR 52000-2 the same table can be found, with, for each module, the numbers of the relevant
EPB standards and accompanying technical reports that are published or in preparation.
NOTE 3 The modules represent EPB standards, although one EPB standard can cover more than one module
and one module can be covered by more than one EPB standard, for instance a simplified and a detailed method
respectively. See also Clause 2 and Tables A.1 and B.1.
Table 1 — Position of this document (in casu M10–4,5,6,7,8,9,10), within the modular structure
of the set of EPB standards
Over-arching Building Technical building system
(as such)
sub1 M1 M2 M3 M4 M5 M6 M7 M8 M9 M10 M11
1 General General General
a
The shaded modules are not applicable.
vi
© ISO 2021 – All rights reserved
Submodule
Descriptions
Descriptions
Descriptions
Heating
Cooling
Ventilation
Humidification
Dehumidification
Domestic hot
waters
Lighting
Building automa-
tion and control
PV, wind, etc.
---------------------- Page: 12 ----------------------
SIST EN ISO 52120-1:2022
ISO 52120-1:2021(E)
TTabablele 1 1 ((ccoonnttiinnueuedd))
Over-arching Building Technical building system
(as such)
sub1 M1 M2 M3 M4 M5 M6 M7 M8 M9 M10 M11
Common
terms and
definitions; Building ener-
2 Needs
symbols, gy needs
units and
subscripts
(Free) indoor
Maximum
conditions
3 Application load and
without sys-
power
tems
Ways to ex- Ways to ex- Ways to ex-
4 press energy press energy press energy x
performance performance performance
Building
Heat transfer
functions Emission and
5 by transmis- x
and building control
sion
boundaries
Building Heat transfer
occupancy by infiltration Distribution
6 x
and operating and ventila- and control
conditions tion
Aggregation
of energy
Internal heat Storage and
7 services and x
gains control
energy car-
riers
Building par- Solar heat Generation
8 x
titioning gains and control
Load dis-
Calculated Building dy-
patching and
9 energy per- namics (ther- x
operating
formance mal mass)
conditions
Measured Measured Measured
10 energy per- energy perfor- energy per- x
formance mance formance
11 Inspection Inspection Inspection
Ways to ex-
12 press indoor BMS
comfort
External
13 environment
conditions
Economic
a
14
calculation
a
The shaded modules are not applicable.
vii
© ISO 2021 – All rights reserved
Submodule
Descriptions
Descriptions
Descriptions
Heating
Cooling
Ventilation
Humidification
Dehumidification
Domestic hot
waters
Lighting
Building automa-
tion and control
PV, wind, etc.
---------------------- Page: 13 ----------------------
SIST EN ISO 52120-1:2022
---------------------- Page: 14 ----------------------
SIST EN ISO 52120-1:2022
INTERNATIONAL STANDARD ISO 52120-1:2021(E)
Energy performance of buildings — Contribution of
building automation, controls and building management —
Part 1:
General framework and procedures
1 Scope
This document specifies:
— a structured list of control, building automation and technical building management functions which
contribute to the energy performance of buildings; functions have been categorized and structured
according to building disciplines and building automation and control (BAC);
— a method to define minimum requirements or any specification regarding the control, building
automation and technical building management functions contributing to energy efficiency of a
building to be implemented in building of different complexities;
— a factor-based method to get a first estimation of the effect of these functions on typical buildings
types and use profiles;
— detailed methods to assess the effect of these functions on a given building.
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.
ISO 50001:2018, Energy management systems — Requirements with guidance for use
ISO 52000-1:2017, Energy performance of buildings — Overarching EPB assessment — Part 1: General
framework and procedures
ISO 7345:2018, Thermal performance of buildings and building components — Physical quantities and
definitions
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 7345:2018, ISO 52000-1:2017
and the following apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at https:// www .electropedia .org/
1
© ISO 2021 – All rights reserved
---------------------- Page: 15 ----------------------
SIST EN ISO 52120-1:2022
ISO 52120-1:2021(E)
3.1
auxiliary energy
electrical energy used by technical building systems (3.14) to support energy transformation to satisfy
energy needs
Note 1 to entry: This includes energy for fans, pumps, electronics, etc. Electrical energy input to the ventilation
system for air transport and heat recovery is not considered as auxiliary energy, but as energy used for
ventilation.
Note 2 to entry: In ISO 9488 the energy used for pumps and valves is called “parasitic energy”.
[SOURCE: ISO 13612-2:2014, 3.3, modified — Note 3 to entry was removed.]
3.2
building automation and control
BAC
products, software, and engineering services for automatic controls, monitoring and optimization,
human intervention and management to achieve energy-efficient, economical, and safe operation of
building services equipment
[SOURCE: ISO 52000-1:2017, 3.4.4, modified — The term BAC was added.]
3.3
building automation and control system
BACS
system, comprising all products, software and engineering services for automatic controls (including
interlocks), monitoring, optimization, for operation, human intervention, and management to achieve
energy-efficient, economical, and safe operation of building services
Note 1 to entry: BACS is also referred to as BMS (building management system).
Note 2 to entry: The use of the word ‘control’ does not imply that the system or device is restricted to control
functions (3.5). Processing of data and information is possible.
Note 3 to entry: If a building control system, building management (3.4) system, or building energy management
system complies with the requirements of the ISO 16484 series, it should be designated as a building automation
and control system (BACS).
Note 4 to entry: Building services are divided in technical, infrastructural and financial building services and
energy management is part of technical building management (3.13).
Note 5 to entry: Building energy management system is part of a BMS.
Note 6 to entry: The building energy management system comprises data collection, logging, alarming,
reporting, and analysis of energy usage, etc. The system is designed to reduce the energy consumption, improve
the utilization, increase the reliability, and predict the performance of the technical building systems (3.14), as
well as optimize energy usage and reducing its cost.
[SOURCE: ISO 16484-2:2004, 3.31, modified — Notes to entry 1, 4, 5 and 6 have been added.]
3.4
building management
BM
totality of services involved in the management operation and monitoring of buildings (including plants
and installations)
Note 1 to entry: Building management can be assigned as part of facility management.
[SOURCE: CEN/TS 15379:2009, 3.4, modified – Second part of the definition became Note 1 to entry.]
2
© ISO 2021 – All rights reserved
---------------------- Page: 16 ----------------------
SIST EN ISO 52120-1:2022
ISO 52120-1:2021(E)
3.5
control function
BAC (3.2) effect of programs and parameters
Note 1 to entry: BAC functions are referred to as control functions, I/O, processing, optimization, management
and operator functions. They are listed in the BAC FL (function list) for a specification of work.
Note 2 to entry: Function is a program unit that delivers exactly one data element, which can be a multiple value
(i.e. an array or a structure). Functions can be an operand in a program as described in EN 61131–3.
3.6
delivered energy
energy, expressed per energy carrier (3.7), supplied to the technical building systems (3.14) through the
assessment boundary, to satisfy the uses taken into account or to produce the exported energy
Note 1 to entry: Delivered energy can be calculated for defined energy uses or it can be measured.
[SOURCE: ISO 52000-1:2017, 3.4.6]
3.7
energy carrier
substance or phenomenon that can be used to p
...
SLOVENSKI STANDARD
SIST EN ISO 52120-1:2022
01-maj-2022
Nadomešča:
SIST EN 15232-1:2018
Energijske lastnosti stavb - Vpliv avtomatizacije, regulacije in upravljanja stavb - 1.
del: Splošni okvir in postopki (ISO 52120-1:2021)
Energy performance of buildings - Contribution of building automation, controls and
building management - Part 1: General framework and procedures (ISO 52120-1:2021)
Energieeffizienz von Gebäuden - Einfluss von Gebäudeautomation und
Gebäudemanagement - Teil 1: Allgemeiner Rahmen und Verfahren (ISO 52120-1:2021)
Performance énergétique des bâtiments - Contribution de l’automatisation, de la
régulation et de la gestion technique des bâtiments - Partie 1: Cadre général et
procédures (ISO 52120-1:2021)
Ta slovenski standard je istoveten z: EN ISO 52120-1:2022
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
SIST EN ISO 52120-1:2022 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
---------------------- Page: 1 ----------------------
SIST EN ISO 52120-1:2022
---------------------- Page: 2 ----------------------
SIST EN ISO 52120-1:2022
EN ISO 52120-1
EUROPEAN STANDARD
NORME EUROPÉENNE
March 2022
EUROPÄISCHE NORM
ICS 91.120.10 Supersedes EN 15232-1:2017
English Version
Energy performance of buildings - Contribution of building
automation, controls and building management - Part 1:
General framework and procedures (ISO 52120-1:2021)
Performance énergétique des bâtiments - Contribution Energieeffizienz von Gebäuden - Einfluss von
de l'automatisation, de la régulation et de la gestion Gebäudeautomation und Gebäudemanagement - Teil 1:
technique des bâtiments - Partie 1: Cadre général et Allgemeiner Rahmen und Verfahren (ISO 52120-
procédures (ISO 52120-1:2021) 1:2021)
This European Standard was approved by CEN on 3 December 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
© 2022 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 52120-1:2022 E
worldwide for CEN national Members.
---------------------- Page: 3 ----------------------
SIST EN ISO 52120-1:2022
EN ISO 52120-1:2022 (E)
Contents Page
European foreword . 3
2
---------------------- Page: 4 ----------------------
SIST EN ISO 52120-1:2022
EN ISO 52120-1:2022 (E)
European foreword
This document (EN ISO 52120-1:2022) 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.
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 September 2022, and conflicting national standards
shall be withdrawn at the latest by September 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.
This document supersedes EN 15232-1:2017.
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.
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 52120-1:2021 has been approved by CEN as EN ISO 52120-1:2022 without any
modification.
3
---------------------- Page: 5 ----------------------
SIST EN ISO 52120-1:2022
---------------------- Page: 6 ----------------------
SIST EN ISO 52120-1:2022
INTERNATIONAL ISO
STANDARD 52120-1
First edition
2021-12
Energy performance of buildings —
Contribution of building automation,
controls and building management —
Part 1:
General framework and procedures
Performance énergétique des bâtiments — Contribution de
l’automatisation, de la régulation et de la gestion technique des
bâtiments —
Partie 1: Cadre général et procédures
Reference number
ISO 52120-1:2021(E)
© ISO 2021
---------------------- Page: 7 ----------------------
SIST EN ISO 52120-1:2022
ISO 52120-1:2021(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 52120-1:2022
ISO 52120-1:2021(E)
Contents Page
Foreword .v
Introduction . vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Symbols, subscripts and abbreviated terms . 5
4.1 Symbols . 5
4.2 Subscripts . . 5
4.3 Abbreviated terms . 5
5 Description of the method . 6
5.1 Output of the method . . 6
5.2 General description of the method(s) . 6
5.3 Selection criteria between the methods . 6
5.4 BAC and TBM functions having an impact on the energy performance of buildings . 7
5.5 BAC efficiency class . 21
5.6 BAC and TBM functions assigned to the BAC efficiency classes .22
5.7 Applying BAC for EnMS and maintaining BAC energy efficiency . 32
5.7.1 General . 32
5.7.2 Applying BAC for EnMS . 32
5.7.3 Maintaining BAC energy efficiency . 32
6 Method 1 - Detailed calculation procedure of the BAC contribution to the energy
performance of buildings (detailed method) .33
6.1 Output data . 33
6.2 Calculation time intervals .34
6.3 Input data - Source of data .35
6.4 Calculation procedure . . 35
6.4.1 Applicable calculation time interval . 35
6.4.2 Energy performance calculation . 35
7 Method 2 - Factor based calculation procedure of the BAC impact on the energy
performance of buildings (BAC factor method) .38
7.1 Output data .38
7.2 Calculation time interval .38
7.3 Calculation procedure — Energy calculation .39
7.3.1 General .39
7.3.2 BAC efficiency factor values .40
7.3.3 Application of the BAC efficiency factors . 41
8 Simplified input data correlations . .42
9 Quality control .42
10 C ompl i a nc e c he c k .42
Annex A (informative) BAC efficiency factors .43
Annex B (normative) Minimum BAC function type requirements .48
Annex C (informative) Determination of the BAC efficiency factors .52
Annex D (informative) Examples of how to use the BAC function list of ISO 16484-3 to
describe functions from this document .70
Annex E (informative) Applying BAC for EnMS specified in ISO 50001:2018 .73
Annex F (informative) Maintain BAC energy efficiency .87
Annex G (informative) Control accuracy .90
iii
© ISO 2021 – All rights reserved
---------------------- Page: 9 ----------------------
SIST EN ISO 52120-1:2022
ISO 52120-1:2021(E)
Bibliography .91
iv
© ISO 2021 – All rights reserved
---------------------- Page: 10 ----------------------
SIST EN ISO 52120-1:2022
ISO 52120-1:2021(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 205, Building environment design, in
collaboration with the European Committee for Standardization (CEN) Technical Committee CEN/
TC 247, Building Automation, Controls and Building Management, in accordance with the Agreement on
technical cooperation between ISO and CEN (Vienna Agreement).
A list of all parts in the ISO 52120 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.
v
© ISO 2021 – All rights reserved
---------------------- Page: 11 ----------------------
SIST EN ISO 52120-1:2022
ISO 52120-1:2021(E)
Introduction
This document belongs to the family of standards aimed at international harmonization of the
methodology for the assessment of the energy performance of buildings. Throughout, this group of
standards is referred to as a set of called “EPB set of standards”.
All EPB standards follow specific rules to ensure overall consistency, unambiguity and transparency.
This document is clearly identified in the modular structure developed to ensure a transparent and
coherent set of EPB standards, as set out in ISO 52000-1, the overarching EPB standard. BAC (building
automation and control) is identified in the modular structure as technical building system M10.
However, other International Standards issued by ISO TC 205 deal with control accuracy, control
functions and control strategies using standards communications protocol (these last standards do not
belong to the set of EPB standards).
To avoid a duplication of calculation due to the BAC (avoid double impact), no calculation is done in a
BAC EPB standard set, but in each underlying standard of the set of EPB standards (from M1 to M9 in
the modular structure), an identifier developed and present in the M10 covered by this document is
used where appropriate. This way of interaction is described in detail in ISO/TR 52000-2, the Technical
Report accompanying ISO 52000-1. As consequence, the concept of a normative template for specific
(national) choices in Annex A, and Annex B with informative default choices, as commonly used in the
set of EPB standards is not applicable for this document.
The main target groups of this document are all the users of the set of EPB set of standards (e.g.
architects, engineers, regulators).
Further target groups are parties wanting to motivate their assumptions by classifying the building
energy performance for a dedicated building stock.
[5]
More information is provided in the Technical Report accompanying this document (ISO/TR 52120-2 ).
NOTE 1 Table 1 shows the relative position of this document within the set of EPB standards in the context of
the modular structure as set out in ISO 52000-1.
NOTE 2 In ISO/TR 52000-2 the same table can be found, with, for each module, the numbers of the relevant
EPB standards and accompanying technical reports that are published or in preparation.
NOTE 3 The modules represent EPB standards, although one EPB standard can cover more than one module
and one module can be covered by more than one EPB standard, for instance a simplified and a detailed method
respectively. See also Clause 2 and Tables A.1 and B.1.
Table 1 — Position of this document (in casu M10–4,5,6,7,8,9,10), within the modular structure
of the set of EPB standards
Over-arching Building Technical building system
(as such)
sub1 M1 M2 M3 M4 M5 M6 M7 M8 M9 M10 M11
1 General General General
a
The shaded modules are not applicable.
vi
© ISO 2021 – All rights reserved
Submodule
Descriptions
Descriptions
Descriptions
Heating
Cooling
Ventilation
Humidification
Dehumidification
Domestic hot
waters
Lighting
Building automa-
tion and control
PV, wind, etc.
---------------------- Page: 12 ----------------------
SIST EN ISO 52120-1:2022
ISO 52120-1:2021(E)
Table 1 (continued)
Over-arching Building Technical building system
(as such)
sub1 M1 M2 M3 M4 M5 M6 M7 M8 M9 M10 M11
Common
terms and
definitions; Building ener-
2 Needs
symbols, gy needs
units and
subscripts
(Free) indoor
Maximum
conditions
3 Application load and
without sys-
power
tems
Ways to ex- Ways to ex- Ways to ex-
4 press energy press energy press energy x
performance performance performance
Building
Heat transfer
functions Emission and
5 by transmis- x
and building control
sion
boundaries
Building Heat transfer
occupancy by infiltration Distribution
6 x
and operating and ventila- and control
conditions tion
Aggregation
of energy
Internal heat Storage and
7 services and x
gains control
energy car-
riers
Building par- Solar heat Generation
8 x
titioning gains and control
Load dis-
Calculated Building dy-
patching and
9 energy per- namics (ther- x
operating
formance mal mass)
conditions
Measured Measured Measured
10 energy per- energy perfor- energy per- x
formance mance formance
11 Inspection Inspection Inspection
Ways to ex-
12 press indoor BMS
comfort
External
13 environment
conditions
Economic
a
14
calculation
a
The shaded modules are not applicable.
vii
© ISO 2021 – All rights reserved
Submodule
Descriptions
Descriptions
Descriptions
Heating
Cooling
Ventilation
Humidification
Dehumidification
Domestic hot
waters
Lighting
Building automa-
tion and control
PV, wind, etc.
---------------------- Page: 13 ----------------------
SIST EN ISO 52120-1:2022
---------------------- Page: 14 ----------------------
SIST EN ISO 52120-1:2022
INTERNATIONAL STANDARD ISO 52120-1:2021(E)
Energy performance of buildings — Contribution of
building automation, controls and building management —
Part 1:
General framework and procedures
1 Scope
This document specifies:
— a structured list of control, building automation and technical building management functions which
contribute to the energy performance of buildings; functions have been categorized and structured
according to building disciplines and building automation and control (BAC);
— a method to define minimum requirements or any specification regarding the control, building
automation and technical building management functions contributing to energy efficiency of a
building to be implemented in building of different complexities;
— a factor-based method to get a first estimation of the effect of these functions on typical buildings
types and use profiles;
— detailed methods to assess the effect of these functions on a given building.
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.
ISO 50001:2018, Energy management systems — Requirements with guidance for use
ISO 52000-1:2017, Energy performance of buildings — Overarching EPB assessment — Part 1: General
framework and procedures
ISO 7345:2018, Thermal performance of buildings and building components — Physical quantities and
definitions
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 7345:2018, ISO 52000-1:2017
and the following apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at https:// www .electropedia .org/
1
© ISO 2021 – All rights reserved
---------------------- Page: 15 ----------------------
SIST EN ISO 52120-1:2022
ISO 52120-1:2021(E)
3.1
auxiliary energy
electrical energy used by technical building systems (3.14) to support energy transformation to satisfy
energy needs
Note 1 to entry: This includes energy for fans, pumps, electronics, etc. Electrical energy input to the ventilation
system for air transport and heat recovery is not considered as auxiliary energy, but as energy used for
ventilation.
Note 2 to entry: In ISO 9488 the energy used for pumps and valves is called “parasitic energy”.
[SOURCE: ISO 13612-2:2014, 3.3, modified — Note 3 to entry was removed.]
3.2
building automation and control
BAC
products, software, and engineering services for automatic controls, monitoring and optimization,
human intervention and management to achieve energy-efficient, economical, and safe operation of
building services equipment
[SOURCE: ISO 52000-1:2017, 3.4.4, modified — The term BAC was added.]
3.3
building automation and control system
BACS
system, comprising all products, software and engineering services for automatic controls (including
interlocks), monitoring, optimization, for operation, human intervention, and management to achieve
energy-efficient, economical, and safe operation of building services
Note 1 to entry: BACS is also referred to as BMS (building management system).
Note 2 to entry: The use of the word ‘control’ does not imply that the system or device is restricted to control
functions (3.5). Processing of data and information is possible.
Note 3 to entry: If a building control system, building management (3.4) system, or building energy management
system complies with the requirements of the ISO 16484 series, it should be designated as a building automation
and control system (BACS).
Note 4 to entry: Building services are divided in technical, infrastructural and financial building services and
energy management is part of technical building management (3.13).
Note 5 to entry: Building energy management system is part of a BMS.
Note 6 to entry: The building energy management system comprises data collection, logging, alarming,
reporting, and analysis of energy usage, etc. The system is designed to reduce the energy consumption, improve
the utilization, increase the reliability, and predict the performance of the technical building systems (3.14), as
well as optimize energy usage and reducing its cost.
[SOURCE: ISO 16484-2:2004, 3.31, modified — Notes to entry 1, 4, 5 and 6 have been added.]
3.4
building management
BM
totality of services involved in the management operation and monitoring of buildings (including plants
and installations)
Note 1 to entry: Building management can be assigned as part of facility management.
[SOURCE: CEN/TS 15379:2009, 3.4, modified – Second part of the definition became Note 1 to entry.]
2
© ISO 2021 – All rights reserved
---------------------- Page: 16 ----------------------
SIST EN ISO 52120-1:2022
ISO 52120-1:2021(E)
3.5
control function
BAC (3.2) effect of programs and parameters
Note 1 to entry: BAC functions are referred to as control functions, I/O, processing, optimization, management
and operator functions. They are listed in the BAC FL (function list) for a specification of work.
Note 2 to entry: Function is a program unit that delivers exactly one data element, which can be a multiple value
(i.e. an array or a structure). Functions can be an operand in a program as described in EN 61131–3.
3.6
delivered energy
energy, expressed per energy carrier (3.7), supplied to the technical building systems (3.14) through the
assessment boundary, to satisfy the uses taken into account or to produce the exported energy
Note 1 to entry: Delivered energy can be calculated for defined energy uses or it can be measured.
[SOURCE: ISO 52000-1:2017, 3.4.6]
3.7
energy carrier
substance or phenomenon that can be used to produce mechanical work or heat or to operate chemical
or physical processes
[SOURCE: ISO 52000-1:2017, 3.4.9]
3.8
energy need for heating and cooling
heat to be delivered to or extracted from a thermally conditioned space to maintain the intended space
temperature conditions during a given period of time
Note 1 to entry: The energy need can include additional heat transfer resulting from non-uniform temperature
distribution and non-ideal temperature control, if they are taken into account by increasing (
...
SLOVENSKI STANDARD
oSIST prEN ISO 52120-1:2020
01-februar-2020
Energijske lastnosti stavb - 1. del: Vpliv avtomatizacije, regulacije in upravljanja
stavb - 1. del: Moduli M10-4, 5, 6, 7, 8, 9, 10 (ISO/DIS 52120-1:2020)
Energy performance of buildings - Contribution of building automation and controls and
building management - Part 1: Modules M10-4,5,6,7,8,9,10 (ISO/DIS 52120-1:2020)
Energieeffizienz von Gebäuden - Einfluss von Gebäudeautomation und
Gebäudemanagement - Teil 1: Module M10‑4, 5, 6, 7, 8, 9, 10 (ISO/DIS 52120-1:2019)
Performance énergétique des bâtiments - Impact de l’automatisation, de la régulation et
de la gestion technique des bâtiments - Partie 1: Modules M10-4,5,6,7,8,9,10 (ISO/DIS
52120-1:2020)
Ta slovenski standard je istoveten z: prEN ISO 52120-1
ICS:
91.120.10 Toplotna izolacija stavb Thermal insulation of
buildings
97.120 Avtomatske krmilne naprave Automatic controls for
za dom household use
oSIST prEN ISO 52120-1:2020 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
---------------------- Page: 1 ----------------------
oSIST prEN ISO 52120-1:2020
---------------------- Page: 2 ----------------------
oSIST prEN ISO 52120-1:2020
DRAFT INTERNATIONAL STANDARD
ISO/DIS 52120-1
ISO/TC 205 Secretariat: ANSI
Voting begins on: Voting terminates on:
2020-01-03 2020-03-27
Energy performance of buildings — Contribution
of building automation and controls and building
management —
Part 1:
Modules M10-4,5,6,7,8,9,10
Performance énergétique des bâtiments — Impact de l'automatisation, du contrôle et de la gestion
techniques des bâtiments —
Partie 1: Modules M10-4,5,6,7,8,9,10
ICS: 91.120.10
IMPORTANT Please use this updated version dated 2019-11-04, and discard any
previous version of this DIS.
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 52120-1:2020(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 2020
---------------------- Page: 3 ----------------------
oSIST prEN ISO 52120-1:2020
ISO/DIS 52120-1:2020(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2020
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 2020 – All rights reserved
---------------------- Page: 4 ----------------------
oSIST prEN ISO 52120-1:2020
ISO/DIS 52120-1:2020(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 2
3 Terms and definitions . 3
4 Symbols, subscripts and abbreviations . 6
4.1 Symbols . 6
4.2 Subscripts . 6
5 Description of the method . 6
5.1 Output of the method . 6
5.2 General description of the method(s) . 7
5.3 Selection criteria between the methods . 7
5.4 BAC and TBM functions having an impact on the energy performance of buildings . 8
5.5 BAC Efficiency Class .21
5.6 BAC and TBM functions assigned to the BAC efficiency classes .22
5.7 Applying BAC for EMS and maintaining BAC energy efficiency .32
5.7.1 General.32
5.7.2 Applying BAC for EMS .32
5.7.3 Maintaining BAC energy efficiency .32
6 Method 1 - Detailed calculation procedure of the BAC contribution to the energy
performance of buildings (Detailed method) .32
6.1 Output data .32
6.2 Calculation time steps .34
6.3 Input data - Source of data .34
6.4 Calculation procedure .34
6.4.1 Applicable timestep .34
6.4.2 Energy performance calculation .35
7 Method 2 - Factor based calculation procedure of the BAC impact on the energy
performance of buildings (BAC factor method) .37
7.1 Output data .37
7.2 Calculation interval .38
7.3 Calculation procedure - Energy calculation .38
8 Simplified input data correlations .42
9 Quality control .42
10 Compliance check .42
Annex A (informative) BAC efficiency factors.43
Annex B (informative) Minimum BAC function type requirements .48
Annex C (informative) Determination of the BAC efficiency factors .52
Annex D (informative) Examples of how to use the BAC function list of ISO 16484-3 to
describe functions from this European Standard .70
Annex E (informative) Applying BAC for EMS specified in ISO 50001.73
Annex F (informative) Maintain BAC energy efficiency .84
Annex G (informative) Control accuracy .87
Bibliography .88
© ISO 2020 – All rights reserved iii
---------------------- Page: 5 ----------------------
oSIST prEN ISO 52120-1:2020
ISO/DIS 52120-1:2020(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 WTO principles in the Technical
Barriers to Trade (TBT) see the following URL: Foreword - Supplementary information
ISO 52120-1 was prepared by International Standardization Organisation (ISO) technical committee
ISO/TC 205 “Building Environmental Design” under Vienna Agreement with ISO Lead.).
ISO 52120 consists of the following parts, under the general title Impact of Building Automation,
Controls and Building Management:
— Part 1: General framework and procedures
— Part 2: Explanation and justification of ISO 52120-1
iv © ISO 2020 – All rights reserved
---------------------- Page: 6 ----------------------
oSIST prEN ISO 52120-1:2020
ISO/DIS 52120-1:2020(E)
Introduction
This International Standard is part of a series of standards aiming at international harmonization of the
methodology for the assessment of the energy performance of buildings, called “EPB set of standards”.
As part of the “EPB set of standards” it complies with the requirements for the set of basic EPB
documents ISO 52000-1 (see Normative references), CEN/TS 16628 and CEN/TS 16629 (see
[2] [3]
Bibliography and ) developed under a mandate given to CEN by the European Commission and the
European Free Trade Association (Mandate M/480).
This standard is clearly identified in the modular structure developed to ensure a transparent and
coherent EPB standard set in ISO 52000-1. BAC (Building Automation and Control) is identified in the
modular structure as Technical Building System M10However, other standards issued by ISO TC 205
deal with control accuracy, control functions and control strategies using standards communications
protocol (these last standards do not belong to the EPB standards set).
To avoid a duplication of calculation due to the BAC (avoid double impact), no calculation are done in
BAC EPB standard set, but in each underlying standard of EPB set of standards (from M1 to M9 in the
Modular Structure), an IDENTIFIER developed and present in the M10 covered by ISO DIS 52120-1
is used where appropriate. These way of interaction is described in detailed in the Technical Report
( ISO/TR 52000-2) accompanying the over-arching standard. As consequence, the Annex A and Annex B
concept as EXCEL sheet with the calculation formulas used in the EPB standards are not applicable for
this standard.
The main target groups of this standard are all the users of the set of EPB standards (e.g. architects,
engineers, regulators).
Further target groups are parties wanting to motivate their assumptions by classifying the building
energy performance for a dedicated building stock.
More information is provided in the Technical Report accompanying this standard (draft
[5]
ISO TR 52120-2 ).
© ISO 2020 – All rights reserved v
---------------------- Page: 7 ----------------------
oSIST prEN ISO 52120-1:2020
---------------------- Page: 8 ----------------------
oSIST prEN ISO 52120-1:2020
DRAFT INTERNATIONAL STANDARD ISO/DIS 52120-1:2020(E)
Energy performance of buildings — Contribution
of building automation and controls and building
management —
Part 1:
Modules M10-4,5,6,7,8,9,10
1 Scope
This International Standard specifies:
— a structured list of control, building automation and technical building management functions which
contribute to the energy performance of buildings; functions have been categorized and structured
according to building disciplines and so called Building automation and control (BAC);
— a method to define minimum requirements or any specification regarding the control, building
automation and technical building management functions contributing to energy efficiency of a
building to be implemented in building of different complexities;
— a factor based method to get a first estimation of the effect of these functions on typical buildings
types and use profiles;
— detailed methods to assess the effect of these functions on a given building.
Table 1 shows the relative position of this standard within the set of EPB standards in the context of the
modular structure as set out in ISO 52000-1.
NOTE 1 In ISO/TR 52000-2 the same table can be found, with, for each module, the numbers of the relevant
EPB standards and accompanying technical reports that are published or in preparation.
NOTE 2 The modules represent EPB standards, although one EPB standard may cover more than one module
and one module may be covered by more than one EPB standard, for instance a simplified and a detailed method
respectively.
Table 1 — Position of this standard (in casu M10–4,5,6,7,8,9,10), within the modular structure
of the set of EPB standards
Over-arch- Building Technical Building System
ing (as such)
Building PV,
Domes-
Submod- Descrip- Descrip- Descrip- Heat- Cool- Ventila- Humidifica- Dehumid- Light- automa- wi
tic Hot
ule tions tions tions ing ing tion tion ification ing tion and nd,
waters
control .
sub1 M1 M2 M3 M4 M5 M6 M7 M8 M9 M10 M11
1 General General General
Common
terms and
defini- Building
2 tions; Energy Needs
symbols, Needs
units and
subscripts
a
The shaded modules are not applicable.
© ISO 2020 – All rights reserved 1
---------------------- Page: 9 ----------------------
oSIST prEN ISO 52120-1:2020
ISO/DIS 52120-1:2020(E)
Table 1 (continued)
Over-arch- Building Technical Building System
ing (as such)
Building PV,
Domes-
Submod- Descrip- Descrip- Descrip- Heat- Cool- Ventila- Humidifica- Dehumid- Light- automa- wi
tic Hot
ule tions tions tions ing ing tion tion ification ing tion and nd,
waters
control .
sub1 M1 M2 M3 M4 M5 M6 M7 M8 M9 M10 M11
(Free)
Indoor Maximum
Applica-
3 Conditions Load and
tion
without Power
Systems
Ways to Ways to Ways to
Express Express Express
4 Energy Energy Energy x
Perfor- Perfor- Perfor-
mance mance mance
Building
Heat
Functions Emission
Transfer
5 and Build- and con- x
by Trans-
ing Bound- trol
mission
aries
Building Heat
Occupan- Transfer Distribu-
6 cy and by Infiltra- tion and x
Operating tion and control
Conditions Ventilation
Aggre-
gation of
Energy Storage
Internal
7 Servic- and con- x
Heat Gains
es and trol
Energy
Carriers
Building Genera-
Solar Heat
8 Partition- tion and x
Gains
ing control
Load
Calculated Building
dispatch-
Energy Dynamics
9 ing and x
Perfor- (thermal
operating
mance mass)
conditions
Measured Measured Measured
Energy Energy Energy
10 x
Perfor- Perfor- Perfor-
mance mance mance
11 Inspection Inspection Inspection
Ways to
Express
12 BMS
Indoor
Comfort
External
Environ-
13
ment Con-
ditions
Economic
a
14 Calcula-
tion
a
The shaded modules are not applicable.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
2 © ISO 2020 – All rights reserved
---------------------- Page: 10 ----------------------
oSIST prEN ISO 52120-1:2020
ISO/DIS 52120-1:2020(E)
ISO 50001:2011, Energy management systems — Requirements with guidance for use (ISO 50001:2011)
ISO 52000-1:2017, Energy performance of buildings — Overarching EPB assessment — Part 1: General
framework and procedures
ISO 52016-1, Energy performance of buildings — Energy needs for heating and cooling, internal
temperatures and sensible and latent heat loads — Part 1: Calculation procedures
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 7345:1995, in ISO 52000-1:2017
and the following apply.
3.1
auxiliary energy
electrical energy used by technical building systems to support energy transformation to satisfy
energy needs
Note 1 to entry: This includes energy for fans, pumps, electronics etc. Electrical energy input to the ventilation
system for air transport and heat recovery is not considered as auxiliary energy, but as energy use for ventilation.
Note 2 to entry: In ISO 9488 the energy used for pumps and valves is called “parasitic energy”.
[SOURCE: ISO 52000-1]
3.2
building automation and control
BAC
products, software, and engineering services for automatic controls, monitoring and optimization,
human intervention, and management to achieve energy-efficient, economical, and safe operation of
building services equipment
[SOURCE: ISO 52000-1:2017, modified – The symbol BAC was added.]
3.3
building automation and control system
BACS
system, comprising all products, software and engineering services for automatic controls (including
interlocks), monitoring, optimization, for operation, human intervention, and management to achieve
energy–efficient, economical, and safe operation of building services
Note 1 to entry: BACS is also referred to as BMS (Building management system).
Note 2 to entry: The use of the word ‘control’ does not imply that the system/device is restricted to control
functions. Processing of data and information is possible.
Note 3 to entry: If a building control system, building management system, or building energy management
system complies with the requirements of the ISO 16484- series, it should be designated as a building automation
and control system (BACS).
Note 4 to entry: Building services is divided in technical, infrastructural and financial building services and
energy management is part of technical building management.
Note 5 to entry: Building energy management system is part of a BMS.
Note 6 to entry: Building energy management system comprising data collection, logging, alarming, reporting,
and analysis of energy usage etc. The system is designed to reduce the energy consumption, improve the
utilization, increase the reliability, and predict the performance of the technical building systems, as well as
optimize energy usage and reducing its cost.
[SOURCE: ISO 16484-2:2004, modified – Notes 1, 4 and 5 have been added.]
© ISO 2020 – All rights reserved 3
---------------------- Page: 11 ----------------------
oSIST prEN ISO 52120-1:2020
ISO/DIS 52120-1:2020(E)
3.4
building management
BM
totality of services involved in the management operation and monitoring of buildings (including plants
and installations)
Note 1 to entry: Building management can be assigned as part of facility management.
[SOURCE: CEN/TS 15379:2006, modified – Second part of the definition became Note 1 to entry.]
3.5
control function
BAC effect of programs and parameters
Note 1 to entry: BAC functions are referred to as control functions, I/O, processing, optimization, management
and operator functions. They are listed in the BAC FL (function list) for a specification of work.
Note 2 to entry: Function is a program unit that delivers exactly one data element, which can be a multiple value
(i.e. an array or a structure). Functions can be an operand in a program. [EN 61131–3]
3.6
delivered energy
energy, expressed per energy carrier, supplied to the technical building systems through the assessment
boundary, to satisfy the uses taken into account or to produce the exported energy
Note 1 to entry: Delivered energy can be calculated for defined energy uses or it can be measured.
[SOURCE: ISO 52000-1]
3.7
energy carrier
substance or phenomenon that can be used to produce mechanical work or heat or to operate chemical
or physical processes
[SOURCE: ISO 52000-1]
3.8
energy need for heating or cooling
heat to be delivered to or extracted from a thermally conditioned space to maintain the intended space
temperature conditions during a given period of time
Note 1 to entry: The energy need can include additional heat transfer resulting from non-uniform temperature
distribution and non-ideal temperature control, if they are taken into account by increasing (decreasing) the
effective temperature for heating (cooling) and not included in the heat transfer due to the heating (cooling) system.
3.9
energy efficiency
ratio or other quantitative relationship between an output of performance, service, goods or energy,
and an input of energy
EXAMPLE Efficiency conversion energy; energy required/energy used; output/input; theoretical energy
used to operate/energy used to operate.
Note 1 to entry: Both input and output need to be clearly specified in quantity and quality, and be measureable.
[SOURCE: ISO 50001-1:2011 modified - Symbol removed]
3.10
energy efficiency improvement
increase in energy efficiency as a result of technological, behavioural or economic changes
[SOURCE: ISO 50001-1:2011]
4 © ISO 2020 – All rights reserved
---------------------- Page: 12 ----------------------
oSIST prEN ISO 52120-1:2020
ISO/DIS 52120-1:2020(E)
3.11
integrated building automation and control systems
BACS designed to be interoperable and with the ability to be connected to one or more specified 3rd
party building automation and control devices/systems through open data communication network
or interfaces performed by standardized methods, special services and permitted responsibilities for
system integration
EXAMPLE Interoperability between 3rd party BACS devices/systems for HVAC, domestic hot water, lighting,
electrical power distribution, energy metering, elevators and escalators, other plants, as well as systems for
communications, access control, security, life safety etc.
3.12
integrated function
BAC effect of programs, shared data points and parameters for multi-discipline interrelationships
between various building services and technologies
3.13
measured energy performance
energy performance based on measured amounts of delivered and exported energy
Note 1 to entry: The measured rating is the weighted sum of all energy carriers used by the building, as
measured by meters or derived from measured energy by other means. It is a measure of the in-use performance
of the building after correction or extrapolation. This is particularly relevant to certification of actual energy
performance.
Note 2 to entry: Also known as “operational rating”.
[SOURCE: ISO 52000-1]
3.14
set-point temperature of a conditioned zone
internal (minimum) temperature, as fixed by the control system in normal heating mode, or internal
(maximum) temperature, as fixed by the control system in normal cooling mode
Note 1 to entry: The corrected value of a temperature setpoint is used for the calculation of energy performance.
It enables the impact of the accuracy of the control system on the energy performance to be taken into account.
3.15
thermally activated building systems
TABS
massive building fabric actively heated or cooled by integrated air or water based systems
3.16
technical building management
TBM
process(es) and services related to operation and management of buildings and technical building
system through the interrelationships between the different disciplines and trades
Note 1 to entry: The disciplines and trades comprise all technical building services for the purpose of optimized
maintenance and energy consumption.
EXAMPLE Optimization of buildings through interrelationships ranging from heating, ventilation and air
conditioning (HVAC) to lighting and day lighting to life safety and security to electric power systems and energy
monitoring and metering; to its services, including communications and maintenance and to its management.
3.17
technical building system
technical equipment for heating, cooling, ventilation, humidification, dehumidification, domestic hot
water, lighting and electricity production
Note 1 to entry: A technical building system can refer to one or to several building services (e.g. heating, heating
and DHW).
© ISO 2020 – All rights reserved 5
---------------------- Page: 13 ----------------------
oSIST prEN ISO 52120-1:2020
ISO/DIS 52120-1:2020(E)
Note 2 to entry: A technical building system is composed of different subsystems.
Note 3 to entry: Electricity production can include cogeneration and photovoltaic systems.
[SOURCE: ISO 52000-1]
4 Symbols, subscripts and abbreviations
4.1 Symbols
For the purposes of this document, the symbols given in ISO 52000-1:2017, Clause 4 and Annex C and
the specific symbols listed in Table 2 apply.
Table 2 — Symbols and units
Symbol Quantity Unit
a normalized level, e.g. occupancy or gains -
− mean part load -
β
Φ heat flow rate, thermal power kW
4.2 Subscripts
For the purposes of this document, the subscript given in ISO 52000-1:2017, Clause 4 and Annex C and
the specific subscripts listed in Table 3 apply.
Table 3 — Subscripts
Subscript Term Subscript Term Subscript Term
amb ambient end end th thermal
BAC building automation r room trans transfer
and control
cor correction ref reference
DHW domestic hot water sta start
5 Description of the method
5.
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.