SIST EN 16798-3:2018

Energy performance of buildings - Ventilation for buildings - Part 3: For non-residential buildings - Performance requirements for ventilation and room-conditioning systems (Modules M5-1, M5-4)

This European Standard applies to the design, energy performance of buildings and implementation of ventilation, air conditioning and room conditioning systems for non-residential buildings subject to human occupancy, excluding applications like industrial processes. It focuses on the definitions of the various parameters that are relevant for such systems.
The guidance for design given in this European Standard and accompanying FprCEN/TR 16798-4 are mainly applicable to mechanical supply and/or exhaust ventilation systems. Natural ventilation systems or natural parts of hybrid ventilation systems are not covered by this European Standard. Reference is made to the Technical Report for informative guidance on the design of such systems.
Applications for residential ventilation are not dealt with in this European Standard. Performance of ventilation systems in residential buildings are dealt with in EN 15665 and CEN/TR 14788.
The classification uses different categories. For some values, examples are given and, for requirements, typical ranges with default values are presented. The default values given in this European Standard are not normative as such, and should be used where no other values are specified. Classification should always be appropriate to the type of building and its intended use, and the basis of the classification should be explained if the examples given in the European Standard are not to be used.
NOTE 1   Different standards may express the categories for the same parameters in a different way, and also the category symbols may be different.
Table 1 shows the relative position of this European Standard within the set of EPB standards in the context of the modular structure as set out in EN ISO 52000 1 .
NOTE 2   In FprCEN 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 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. See also Clause 2 and Tables A.1 and B.1.

Energetische Bewertung von Gebäuden - Lüftung von Gebäuden - Teil 3: Lüftung von Nichtwohngebäuden -Leistungsanforderungen an Lüftungs- und Klimaanlagen und Raumkühlsysteme (Module M5-1, M5-4)

Diese Europäische Norm gilt für die Planung, Energieeffizienz von Gebäuden und Ausführung von Lüftungs- und Klimaanlagen sowie Raumkühlsystemen in Nichtwohngebäuden, die für den Aufenthalt von Menschen bestimmt sind; Anwendungen in der Industrie- und Prozesstechnik sind dabei ausgeschlossen. Das Dokument konzentriert sich auf die Definition der verschiedenen Parameter, die für derartige Anlagen relevant sind.
Die in dieser Europäischen Norm und im beigefügten Technischen Bericht FprCEN/TR 16798-4 angegebenen Leitlinien für die Planung gelten hauptsächlich für Anlagen mit maschineller Be- und/oder Entlüftung. Natürliche Lüftungsanlagen oder natürliche Teile von Hybridlüftungsanlagen sind nicht Gegenstand dieser Europäischen Norm. Für informative Hinweise zur Auslegung derartiger Anlagen wird auf den technischen Bericht verwiesen.
Anforderungen an Lüftungsanlagen von Wohngebäuden werden in dieser Europäischen Norm nicht behandelt. Die Leistung von Lüftungsanlagen in Wohngebäuden ist in EN 15665 und CEN/TR 14788 behandelt.
Bei der Klassifizierung wird eine Einteilung in unterschiedliche Kategorien vorgenommen. Für einige Werte sind Beispiele angegeben, und für Anforderungen sind übliche Bereiche mit Standardwerten aufgeführt. Die in dieser Europäischen Norm angegebenen Standardwerte als solche sind nicht normativ und sollten angewendet werden, wenn keine anderen Werte festgelegt sind. Die Klassifizierung sollte stets dem Typ und der vorgesehenen Nutzung des Gebäudes entsprechen; wenn die in dieser Europäischen Norm angegebenen Beispiele nicht angewendet werden, sollte die Klassifizierungsgrundlage erläutert werden.
ANMERKUNG 1   Die Kategorien für die einzelnen Parameter können in unterschiedlichen Normen unterschiedlich benannt sein, und auch die verwendeten Kategoriesymbole können sich voneinander unterscheiden.
Tabelle 1 zeigt die relative Position dieser Europäischen Norm innerhalb des EPB-Normenpakets im Kontext der modularen Struktur, wie in EN ISO 52000-1 ) dargestellt.
ANMERKUNG 2   Dieselbe Tabelle ist in FprCEN ISO/TR 52000-2 zu finden; sie enthält für jedes Modul die Nummern der relevanten EPB-Normen und der beigegebenen Technischen Berichte, die bereits veröffentlicht oder in Vorbereitung sind.
ANMERKUNG 3   Die Module stellen EPB-Normen dar, auch wenn eine EPB-Norm mehr als ein Modul abdecken kann und ein Modul von mehr als einer EPB-Norm abgedeckt sein kann, wie es sich zum Beispiel bei einem vereinfachten und einem detaillierteren Verfahren verhält. Siehe auch Abschnitt 2 und Tabellen A.1 und B.1.

Performance énergétique des bâtiments - Ventilation des bâtiments - Partie 3: Pour bâtiments non résidentiels - Exigences de performances pour les systèmes de ventilation et de climatisation (Modules M5-1, M5-4)

La présente Norme européenne s’applique à la conception, à la performance énergétique des bâtiments et à l’implantation de systèmes de ventilation, de conditionnement d'air et de climatisation pour les bâtiments non résidentiels sujets à occupation humaine, à l’exception des applications telles que les processus industriels. Elle porte surtout sur les définitions des divers paramètres pertinents pour de tels systèmes.
Les lignes directrices pour la conception données dans la présente Norme européenne et dans le FprCEN/TR 16798 4 associé, s'appliquent principalement aux systèmes de ventilation mécanique d’air fourni et/ou rejeté. Les systèmes de ventilation naturelle ou les parties naturelles des systèmes de ventilation hybride ne sont pas traités dans la présente Norme européenne. Il est fait référence au rapport technique concernant des lignes directrices informatives sur la conception de tels systèmes.
Les applications pour la ventilation résidentielle ne sont pas traitées dans la présente Norme européenne. La performance des systèmes de ventilation dans les bâtiments résidentiels est couverte par l'EN 15665 et le CEN/TR 14788.
La classification utilise différentes catégories. Pour certaines valeurs, des exemples sont donnés et, pour les exigences, des plages types avec des valeurs par défaut sont présentées. Les valeurs par défaut données dans la présente Norme européenne ne sont pas normatives en tant que telles et il convient qu’elles ne soient utilisées que si aucune autre valeur n’est spécifiée. II convient que la classification soit toujours appropriée au type du bâtiment et à son utilisation prévue, et il convient que le fondement de la classification soit expliqué si les exemples donnés dans la Norme européenne ne sont pas utilisés.
NOTE 1   Différentes normes peuvent définir de manière différente des catégories pour les mêmes paramètres et les symboles pour ces catégories peuvent également être différents.
Le Tableau 1 indique la position relative de la présente Norme européenne dans l’ensemble de normes PEB dans le cadre de la structure modulaire donnée dans l'EN ISO 52000 1 .
NOTE 2   Dans le FprCEN ISO/TR 52000 2 le même tableau peut être trouvé avec, pour chaque module, le numéro des normes PEB correspondantes et les rapports techniques associés qui sont publiés ou en cours d'élaboration.
NOTE 3   Les modules représentent des normes PEB, bien qu'une norme PEB puisse couvrir plus d'un module et qu'un module puisse être couvert par plusieurs normes PEB, par exemple une méthode simplifiée et une méthode détaillée respectivement. Voir également l'Article 2 et les Tableaux A.1 et B.1.

Energijske lastnosti stavb - Prezračevanje stavb - 3. del: Prezračevanje nestanovanjskih stavb - Zahtevane lastnosti za sisteme prezračevanja in klimatizacije prostorov - Modula M5-1, M5-4

Ta evropski standard se uporablja za načrtovanje in izvedbo prezračevalnih sistemov, klimatskih naprav in sistemov za klimatizacijo prostorov v nestanovanjskih stavbah za človeško uporabo, razen aplikacij, kot so industrijski procesi. Osredotoča se na opredelitve različnih parametrov, ki so pomembni za takšne sisteme.  
Smernice za načrtovanje, podane v tem standardu in priloženem tehničnem poročilu TR 13779, se v glavnem uporabljajo za prezračevalne sisteme z mehanskim dovajanjem in odvajanjem. Ta standard ne zajema naravnih prezračevalnih sistemov ali naravnih delov hibridnih prezračevalnih sistemov. Glede informativnih navodil za načrtovanje takšnih sistemov se standard sklicuje na tehnično poročilo.
Ta standard ne obravnava aplikacij za prezračevanje stanovanjskih objektov. Učinkovitost prezračevalnih sistemov v stanovanjskih objektih obravnavata standarda EN 15665 in CEN/TR 14788.
Za razvrščanje se uporabljajo različne kategorije. Za nekatere vrednosti so podani primeri, v zvezi z zahtevami pa so navedeni običajni razponi s privzetimi vrednostmi. Privzete vrednosti, podane v tem standardu, same po sebi niso normativne, zato jih je priporočljivo uporabljati, če druge vrednosti niso določene. Razvrščanje mora biti vedno prilagojeno glede na vrsto in predvideno uporabo stavbe, podlago za razvrščanje pa je treba pojasniti, če se primeri iz standarda ne bodo uporabljali.
OPOMBA: v različnih standardih so lahko kategorije enakih parametrov različno izražene, prav tako se lahko razlikujejo simboli za kategorije.

General Information

• Status: Withdrawn
• Public Enquiry End Date: 01-Mar-2015
• Publication Date: 13-Jun-2018
• Withdrawal Date: 27-Nov-2025
• ICS: 91.140.30 - Ventilation and air-conditioning systems
• Technical Committee: OGS - Heating for buildings
• Current Stage: 9900 - Withdrawal (Adopted Project)
• Start Date: 28-Nov-2025
• Due Date: 21-Dec-2025
• Completion Date: 28-Nov-2025
• Directive: 2010/31/EU - Directive 2010/31/eu of the European Parliament and of the Council of 19 May 2010 on the energy performance of buildings (recast)
• Directive: 2017-01-2394 - Pravilnik o pogojih, ki jih mora izpolnjevati kadilnica
• Mandate: M/480 - Mandate to CEN, CENELEC and ETSI for the elaboration and adoption of standards for a methodology calculating the integrated energy performance of buildings and promoting the energy efficiency of buildings, in accordance with the terms set in the recast of the Directive on the energy performance buildings (2010/31/EU)
• Ref Project: EN 16798-3:2017 - Energy performance of buildings - Ventilation for buildings - Part 3: For non-residential buildings - Performance requirements for ventilation and room-conditioning systems (Modules M5-1, M5-4)

Relations

• Replaces: SIST EN 13779:2007 - Ventilation for non-residential buildings - Performance requirements for ventilation and room-conditioning systems
• Effective Date: 01-Jul-2018
• Replaced By: SIST EN 16798-3:2025 - Energy performance of buildings - Ventilation for buildings - Part 3: For non-residential buildings - Performance requirements for ventilation and room-conditioning systems (Modules M5-1, M5-4)
• Effective Date: 01-Jul-2025

Standards Content (Sample)

SLOVENSKI STANDARD
01-julij-2018
1DGRPHãþD
SIST EN 13779:2007
(QHUJLMVNHODVWQRVWLVWDYE3UH]UDþHYDQMHVWDYEGHO3UH]UDþHYDQMH
QHVWDQRYDQMVNLKVWDYE=DKWHYDQHODVWQRVWL]DVLVWHPHSUH]UDþHYDQMDLQ
NOLPDWL]DFLMHSURVWRURY0RGXOD00
Energy performance of buildings - Ventilation for buildings - Part 3: For non-residential
buildings - Performance requirements for ventilation and room-conditioning systems
(Modules M5-1, M5-4)
Energetische Bewertung von Gebäuden - Lüftung von Gebäuden - Teil 3: Lüftung von
Nichtwohngebäuden -Leistungsanforderungen an Lüftungs- und Klimaanlagen und
Raumkühlsysteme (Module M5-1, M5-4)
Performance énergétique des bâtiments - Ventilation des bâtiments - Partie 3: Pour
bâtiments non résidentiels - Exigences de performances pour les systèmes de ventilation
et de climatisation (Modules M5-1, M5-4)
Ta slovenski standard je istoveten z: EN 16798-3:2017
ICS:
91.140.30 3UH]UDþHYDOQLLQNOLPDWVNL Ventilation and air-
VLVWHPL conditioning systems
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN 16798-3
EUROPEAN STANDARD
NORME EUROPÉENNE
August 2017
EUROPÄISCHE NORM
ICS 91.120.10; 91.140.30 Supersedes EN 13779:2007
English Version
Energy performance of buildings - Ventilation for buildings
- Part 3: For non-residential buildings - Performance
requirements for ventilation and room-conditioning
systems (Modules M5-1, M5-4)
Performance énergétique des bâtiments - Ventilation Energetische Bewertung von Gebäuden - Lüftung von
des bâtiments - Partie 3: Pour bâtiments non Gebäuden - Teil 3: Lüftung von Nichtwohngebäuden -
résidentiels - Exigences de performances pour les Leistungsanforderungen an Lüftungs- und
systèmes de ventilation et de climatisation (Modules Klimaanlagen und Raumkühlsysteme (Module M5-1,
M5-1, M5-4) M5-4)
This European Standard was approved by CEN on 11 May 2017.

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, 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.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2017 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 16798-3:2017 E
worldwide for CEN national Members.

Contents Page
European foreword . 4
Introduction . 7
1 Scope . 9
2 Normative references . 11
3 Terms and definitions . 12
4 Symbols and subscripts . 13
4.1 Symbols . 13
4.2 Subscripts . 15
5 Brief description of the method and routing . 15
5.1 Output of the method . 15
5.2 General description of the method . 15
6 Output data for energy calculation . 16
7 Indoor environment . 17
7.1 General . 17
7.2 Occupied zone . 18
8 Agreement of design criteria . 20
8.1 General . 20
8.2 Principles . 20
8.3 General building characteristics . 20
8.4 Construction data . 21
8.5 Geometrical description . 21
8.6 Use of the rooms . 21
8.7 Requirements in the rooms . 22
8.8 System requirements . 22
8.9 Heat transmission of surfaces of ventilation systems . 23
8.10 General requirements for control, adjustment and monitoring . 23
8.11 General requirements for maintenance and safety of operation . 23
8.12 Process from project initiation to operation . 24
8.13 Supply air humidity . 24
9 Classification . 25
9.1 Specification of types of air . 25
9.2 Classification of air . 27
9.3 System functions and basic system types . 29
9.4 Design air flow balance . 32
9.5 Specific fan power . 33
9.6 Heat recovery section . 37
9.7 Filtration . 39
9.8 Leakages in ventilation systems . 40
10 Calculation and energy rating . 43
10.1 Ventilation effectiveness and air diffusion . 43
10.2 Calculation of air volume flows . 44
10.3 Energy rating of ventilation systems . 45
Annex A (normative) Input and method selection data sheet — Template . 47
A.1 General . 47
A.2 References . 47
A.3 Design data for energy calculation - Typical range for SFP categories . 48
A.4 Design data . 48
Annex B (informative) Input and method selection data sheet — Default choices . 50
B.1 General . 50
B.2 References . 50
B.3 Default design data for energy calculation . 52
B.4 Default design data . 52
Bibliography . 55

European foreword
This document (EN 16798-3:2017) has been prepared by Technical Committee CEN/TC 156 “Ventilation for
buildings”, the secretariat of which is held by BSI.
This European Standard shall be given the status of a national standard, either by publication of an identical
text or by endorsement, at the latest by February 2018, and conflicting national standards shall be
withdrawn at the latest by February 2018.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights.
This standard has been produced to meet the requirements of Directive 2010/31/EU 19 May 2010 on the
energy performance of buildings (recast), referred to as “recast EPDB”.
This document supersedes EN 13779:2007, which was produced to meet the requirements of Directive
2002/91/EC 16 December 2002 on energy performance of buildings referred to as “EPBD”.
This document has been prepared under a mandate given to CEN by the European Commission and the
European Free Trade Association.
For the convenience of Standards users CEN/TC 156, together with responsible Working Group Conveners,
have prepared a simple table below relating, where appropriate, the relationship between the ‘EPBD’ and
‘recast EPBD’ standard numbers prepared by Technical Committee CEN/TC 156 “Ventilation for buildings”.
Recast EPBD EN
EPBD EN Number Title
Number
Energy performance of buildings – Ventilation for buildings -
Part 1: Indoor environmental input parameters for design and
EN 15251 EN 16798-1 assessment of energy performance of buildings addressing
indoor air quality, thermal environment, lighting and acoustics
(Module M1-6)
Energy performance of buildings – Ventilation for buildings -
Part 2: Interpretation of the requirements in EN 16798-1 —
Indoor environmental input parameters for design and
N/A CEN/TR 16798-2
assessment of energy performance of buildings addressing
indoor air quality, thermal environment, lighting and acoustics
(Module M1-6)
Energy performance of buildings – Ventilation for buildings -
Part 3: For non-residential buildings – Performance
EN 13779 EN 16798-3
requirements for ventilation and room-conditioning systems
(Modules M5-1, M5-4)
Energy performance of buildings – Ventilation for buildings -
Part 4: Interpretation of the requirements in EN 16798-3 — For
N/A CEN/TR 16798-4 non-residential buildings – Performance requirements for
ventilation and room-conditioning systems(Modules M5-1, M5-
4)
Energy performance of buildings — Ventilation for buildings –
Part 5-1: Calculation methods for energy requirements of
EN 15241 EN 16798-5-1 ventilation and air conditioning systems (Modules M5-6, M5-8,
M6-5, M6-8, M7-5, M7-8) — Method 1: Distribution and
generation
Energy performance of buildings – Ventilation for buildings -
Part 5-2: Calculation methods for energy requirements of
EN 15241 EN 16798-5-2
ventilation systems (Modules M5-6.2, M5-8.2) - Method 2:
Distribution and generation
Energy performance of buildings - Ventilation for buildings –
Part 6: Interpretation of the requirements in EN 16798-5-1 and
N/A CEN/TR 16798-6 EN 16798-5-2 — Calculation methods for energy requirements
of ventilation and air conditioning systems (Modules M5-6, M5-
8, M 6-5, M6-8 , M7-5, M7-8)
Energy performance of buildings - Ventilation for buildings -
EN 15242 EN 16798-7 Part 7: Calculation methods for the determination of air flow
rates in buildings including infiltration (Module M5-5)
Energy performance of buildings – Ventilation for buildings –
Part 8: Interpretation of the requirements in EN 16798-7 —
N/A CEN/TR 16798-8
Calculation methods for the determination of air flow rates in
buildings including infiltration – (Module M5-5)
Energy performance of buildings – Ventilation for buildings -
EN 15243 EN 16798-9 Part 9: Calculation methods for energy requirements of cooling
systems (Modules M4-1, M4-4, M4-9) - General
Energy performance of buildings – Ventilation for buildings –
Part 10: Interpretation of the requirements in EN 16798-9 —
N/A CEN/TR 16798-10
Calculation methods for energy requirements of cooling
systems (Module M4-1,M4-4, M4-9) – General
Energy performance of buildings – Ventilation for buildings -
EN 15243 EN 16798-13 Part 13: - Calculation of cooling systems (Module M4-8) –
Generation
Energy performance of buildings – Ventilation for buildings -
EN 15243 CEN/TR 16798-14 Part 14: Interpretation of the requirements in EN 16798-13 —
Calculation of cooling systems (Module M4-8) – Generation
Energy performance of buildings – Ventilation for buildings –
N/A EN 16798-15
Part 15: Calculation of cooling systems (Module M4-7) – Storage
Energy performance of buildings – Ventilation for buildings –
N/A CEN/TR 16798-16 Part 16: Interpretation of the requirements in EN 16798-15 —
Calculation of cooling systems (Module M4-7) – Storage
Energy performance of buildings – Ventilation for buildings -
EN 15239 and
EN 16798-17 Part 17: Guidelines for inspection of ventilation and air-
EN 15240
conditioning systems (Module M4-11, M5-11, M6-11, M7-11)
Energy performance of buildings – Ventilation for buildings –
Part 18: Interpretation of the requirements in EN 16798-17 —
N/A CEN/TR 16798-18
Guidelines for inspection of ventilation and air-conditioning
systems (Module M4-11, M5-11, M6-11, M7-11)
The revision concerns mainly the following aspects:
— New structure to clarify designing and calculation aspects;
— Update of filtration aspects;
— Update of heat recovery aspects and leakages in these systems;
— Clear coordination with prEN 16798-1:2015, outdoor air volume flows have been shifted to
prEN 16798-1:2015;
— All indoor air quality aspects have been deleted, supply air quality have been introduced;
— Aspects of energy performance have been updated;
— Update of definitions of systems;
— Update of SPF definitions and links to EU 327/2014 regulation;
— The document was split in a normative part, containing all the normative aspects and a supplementary
technical report containing additional information and informative annexes;
— The standard allows a normative national annex;
— The standard was updated to cover hourly/monthly/seasonal time-step.
According to the CEN-CENELEC Internal Regulations, the national standards organisations of the following
countries are bound to implement this European Standard: 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 the United Kingdom.
Introduction
This European 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 "set of EPB standards".
All EPB standards follow specific rules to ensure overall consistency, unambiguity and transparency.
All EPB standards provide a certain flexibility with regard to the methods, the required input data and
references to other EPB standards, by the introduction of a normative template in Annex A and Annex B with
informative default choices.
For the correct use of this European Standard a normative template is given in Annex A to specify these
choices. Informative default choices are provided in Annex B.
The main target groups of this European Standard are all the users of the set of EPB standards (e.g.
architects, engineers, regulators).
Use by or for regulators: In case the standard is used in the context of national or regional legal
requirements, mandatory choices may be given at national or regional level for such specific applications.
These choices (either the informative default choices from Annex B or choices adapted to national / regional
needs, but in any case following the template of this Annex A) can be made available as national annex or as
separate (e.g. legal) document (national data sheet).
NOTE So in this case:
— the regulators will specify the choices;
— the individual user will apply the standard to assess the energy performance of a building, and thereby use
the choices made by the regulators.
Topics addressed in this European Standard can be subject to public regulation. Public regulation on the
same topics can override the default values in Annex B of this standard. Public regulation on the same topics
can even, for certain applications, override the use of this European Standard. Legal requirements and
choices are in general not published in standards but in legal documents. In order to avoid double
publications and difficult updating of double documents, a national annex may refer to the legal texts where
national choices have been made by public authorities. Different national annexes or national data sheets are
possible, for different applications.
It is expected, if the default values, choices and references to other EPB standards in Annex B are not
followed due to national regulations, policy or traditions, that:
— national or regional authorities prepare data sheets containing the choices and national or regional
values, according to the model in Annex A. In this case the national annex (e.g. NA) refers to this text;
— or, by default, the national standards body will consider the possibility to add or include a national
annex in agreement with the template of Annex A, in accordance to the legal documents that give
national or regional values and choices.
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 (CEN/TR 16798-4).
This European Standard also provides requirements especially for designers, installers, manufacturers,
building owners and users, on ventilation, air-conditioning and room-conditioning systems in order to
achieve a comfortable and healthy indoor environment in all seasons with acceptable installation and
running costs. This European Standard focuses on the system-aspects for typical applications and covers the
following:
— Aspects important to achieve and maintain a good energy performance in the systems without any
negative impact on the quality of the indoor environment.
— Definitions of design and performances data.
1 Scope
This European Standard applies to the design, energy performance of buildings and implementation of
ventilation, air conditioning and room conditioning systems for non-residential buildings subject to human
occupancy, excluding applications like industrial processes. It focuses on the definitions of the various
parameters that are relevant for such systems.
The guidance for design given in this European Standard and accompanying CEN/TR 16798-4 are mainly
applicable to mechanical supply and/or exhaust ventilation systems. Natural ventilation systems or natural
parts of hybrid ventilation systems are not covered by this European Standard. Reference is made to the
Technical Report for informative guidance on the design of such systems.
Applications for residential ventilation are not dealt with in this European Standard. Performance of
ventilation systems in residential buildings are dealt with in EN 15665 and CEN/TR 14788.
The classification uses different categories. For some values, examples are given and, for requirements,
typical ranges with default values are presented. The default values given in this European Standard are not
normative as such, and should be used where no other values are specified. Classification should always be
appropriate to the type of building and its intended use, and the basis of the classification should be
explained if the examples given in the European Standard are not to be used.
NOTE 1 Different standards may express the categories for the same parameters in a different way, and also the
category symbols may be different.
Table 1 shows the relative position of this European Standard within the set of EPB standards in the context
of the modular structure as set out in EN ISO 52000-1.
NOTE 2 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 3 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. See also Clause 2 and Tables A.1 and B.1.
Table 1— Position of this standard (in casu M5-1, M5-4), within the modular structure of the set of
EPB standards
Building
Overarching   Technical Building Systems
(as such)
sub sub sub M M M
M1  M2   M4 M5 M6 M9 M10 M11
1 1 1 3 7 8
EN 16798
1 General  1 General  1 General
-3
Common
terms and
Building
definitions;
2  2 Energy  2 Needs
symbols,
Needs
units and
subscripts
(Free)
Maximu
Indoor
Application m Load
3  3 Conditions  3
s and
without
Power
Systems
Ways to Ways to Ways to
Express Express Express
EN 16798
4 Energy  4 Energy  4 Energy
-3
Performan Performanc Performa
ce e nce
Building
Heat
Functions
Transfer by Emission
5 and  5  5
Transmissi & control
Building
on
Boundaries
Building Heat
Occupancy Transfer by Distributi
6 and  6 Infiltration  6 on &
Operating and control
Conditions Ventilation
Aggregatio
n of Energy
Internal Storage &
7 Services  7  7
Heat Gains control
and Energy
Carriers
Building Generatio
Solar Heat
8 Partitionin 8  8 n &
Gains
g control
Descriptions
Descriptions
Descriptions
Heating
Cooling
Ventilation
Humidifi
cation
Dehumidification
Domestic Hot
water
Lighting
Building
automation &
control
PV, wind, .
Load
Calculated Building dispatchi
Energy Dynamics ng and
9  9  9
Performan (thermal operating
ce mass) condition
s
Measured Measured Measured
Energy Energy Energy
10  10  10
Performan Performanc Performa
ce e nce
Inspectio
11 Inspection  11 Inspection  11
n
Ways to
Express
12     12 BMS
Indoor
Comfort
External
Environme
nt
Conditions
Economic
Calculation
NOTE 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.
Default references to EPB standards other than EN ISO 52000-1 are identified by the EPB module code
number and given in Annex A (normative template) and Annex B (informative default choice).
NOTE Example of EPB module code number: M5-5, or M5-5.1 (if module M5-5 is subdivided), or M5-5/1 (if
reference to a specific clause of the standard covering M5-5).
EN 308, Heat exchangers - Test procedures for establishing performance of air to air and flue gases heat
recovery devices
EN 779, Particulate air filters for general ventilation — Determination of the filtration performance
EN 1822-3, High efficiency air filters (EPA, HEPA and ULPA) - Part 3: Testing flat sheet filter media
EN 1886, Ventilation for buildings - Air handling units - Mechanical performance
EN 12599:2012, Ventilation for buildings - Test procedures and measurement methods to hand over air
conditioning and ventilation systems
EN 12792:2003, Ventilation for buildings - Symbols, terminology and graphical symbols
EN 13053:2006+A1:2011, Ventilation for buildings - Air handling units - Rating and performance for units,
components and sections
EN 15780, Ventilation for buildings - Ductwork - Cleanliness of ventilation systems
prEN 16798-1:2015, Energy performance of buildings — Part 1: Indoor environmental input parameters for
design and assessment of energy performance of buildings addressing indoor air quality, thermal environment,
lighting and acoustics — Module M1-6
EN ISO 7345:1995, Thermal insulation - Physical quantities and definitions (ISO 7345:1987)
EN ISO 52000-1, Energy performance of buildings — Overarching EPB assessment — Part 1: General
framework and procedures (ISO 52000-1)
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN 12792:2003, M1-6 and M1-9, EN
ISO 7345:1995, EN ISO 52000-1, and the following apply.
The terms of EN ISO 52000-1 that are indispensable for the understanding of the underlying standard are
repeated here.
3.1
EPB standard
standard that complies with the requirements given in EN ISO 52000-1, CEN/TS 16628 and CEN/TS 16629
Note 1 to entry CEN/TS 16628 and CEN/TS 16629 contain specific rules to ensure overall consistency, unambiguity,
transparency and flexibility, supported by common templates. EN ISO 52000-1, the overarching EPB standard, is
indispensable for each EPB standard, because of the modular structure, common terms and definitions, symbols and
subscripts and because it provides the general framework for the EPB assessment.
[SOURCE: EN ISO 52000-1]
3.2
room conditioning system
combination of appliances designed to keep comfort conditions in a room within a defined range
Note 1 to entry: Air conditioning systems as well as surface based systems, such as embedded systems, chilled
ceilings and chilled beams, are included.
3.3
occupied zone
volume designed for human occupancy specified by horizontal and vertical planes
3.4
ventilation effectiveness
performance of air diffusion system in removing the pollutants from the occupied zone of a room given by
relation between the pollution concentrations in the supply air, the extract air and the indoor air in the
breathing zone (within the occupied zone)
3.5
specific fan power
amount of electric fan power divided by the air volume flow
3.6
demand controlled ventilation
ventilation system where the ventilation rate is controlled by air quality, moisture, occupancy or some other
indicator for the need of ventilation
3.7
ventilation system
combination of appliances designed to supply interior spaces with outdoor air and to extract polluted indoor
air
Note 1 to entry: The system can consist of mechanical components (e.g. combination of air handling unit, ducts and
terminal units). Ventilation system can also refer to natural ventilation systems making use of temperature differences
and wind with facade grills in combination with mechanical exhaust (e.g. in corridors, toilets etc.). Both mechanical and
natural ventilation can be combined with operable windows. A combination of mechanical and non-mechanical
components is possible (hybrid systems).
3.8
Exhaust Air Transfer Ratio (EATR)
level of carry over of extract air to the supply air
3.9
Outdoor Air Correction Factor (OACF)
ratio of outdoor air mass flow (ODA) and supply air mass flow (SUP)
3.10
design nominal air flow condition
-3
declared nominal air volume flow at a density of 1,2 kg m
3.11
reference load condition for air handling units
filter pressure drop of clean filters, dry heat exchangers and humidifiers at reference condition
3.12
air conditioning system
combination of appliances designed to supply conditioned air to a space
3.13
reference conditions P
SFP
reference conditions for pressure drop are: Clean filters and dry conditions for other components (e.g. heat
exchanger, cooling coil and humidifier)
3.14
design load condition P
SFPd
design load condition for pressure drop are: Average of clean filters and recommended maximum pressure
drop and for other components (heat exchanger, cooling coil, humidifier, etc.) the average of dry and wet
values
4 Symbols and subscripts
4.1 Symbols
For the purposes of this document, the symbols given in Clause 4 and Annex C of EN ISO 52000-1, EN 12792
and the specific symbols listed in Table 2 apply.
Table 2 — Symbols and units
Quantity Symbol Unit
Pressure difference Δp Pa
a
Temperature difference Δθ K
Ventilation effectiveness εv -
Coefficient of Performance ε -
Temperature θ °C
Air temperature in the room θ °C
a
Mean radiant temperature θr °C
Operative temperature θ °C
o
-3
Density ρ kg.m
Heating or cooling load Φ W
Temperature ratio Φt -
Area A m
Costs C b
€
-3
Concentration c mg.m
-1 -1
Specific heat capacity at constant pressure cp J.kg .K
Diameter d m
Energy consumption (measured) E J
Energy demand (calculated) E J
Filter Efficiency (total, stage) Et; Es -
Efficiency η -
-3 -1
Specific primary energy use of ventilation E W h m h a
p
Exhaust Air Transfer Ratio EATR -
3 -1 -2
Specific leakage f m .s .m
Primary Energy Factor fP -
Present value factor f -
pv
Height h m
Initial Investment I b
€
Thermal insulation of clothing Icl clo
Length L m
Metabolic rate (activity) M met
Life span n Years
-1
Humidity load kg s

m
h
Quantity Symbol Unit
-1
Building air change rate at 50 Pa pressure difference n h
Fan power P W
-3
Specific fan power PSFP W.m .s
Outdoor Air Correction Factor OACF -
b
Present value PV €
Pressure p Pa
Thermal Energy Q kWh
-1
Mass flow rate q kg.s
m
3 -1
Volume flow rate qv m .s
Interest rate r -
Time t s
Volume V m
-1
Air velocity v m.s
3 -1
Specific volume of supply air v m kg dry air
SUP
Auxiliary Energy w kWh
-1
Specific humidity x kg kg dry air
a
EN 12792 prefers θ but t and T may be used as well.
b
Or National currency.
4.2 Subscripts
For the purposes of this document, the subscripts given in Clause 4 and Annex C of EN ISO 52000-1 apply.
5 Brief description of the method and routing
5.1 Output of the method
This European Standard contains designing aspects in Clauses 6 to 8, and EPB calculation aspects in Clause 9.
5.2 General description of the method
5.2.1 Input data for energy calculation
Data in Table 3 is describing input data for EPB calculations.
Table 3— Input data for energy calculation
Validity Varying
Name Symbol Unit Ref
interval
l/s m /h 0 - ∞ no
Ventilation rate per person qV,P l/(sm ) M1-6
3 2
m /(hm )
l/s m /h 0 - ∞ no
Ventilation rate for building
q l/(sm ) M1-6
V,B
emission
3 2
m /(hm )
l/s m /h 0 - ∞ no
breathing zone ventilation qV,bz l/(sm ) M1-6
3 2
m /(hm )
specific heating energy 0 - ∞ no
q 3
required for outdoor air M5-6-1
H Wh/(m /h·a)
treatment
f 0 – 1 no
Delivered energy factor heat - M3-9
H
specific cooling energy 0 - ∞ no

q 3
required for outdoor air M5-6-1
C
Wh/(m /h·a)
treatment
f 0 – 1 no
Delivered energy factor cold  M4-8
C
specific humidification 0 - ∞ no
e M6-8
HU
Wh/(m /h·a)
generation input
Primary energy factor 0 – 1 no
F  M6-8
P,cr
humidifier
primary energy factors 0 – 1 no

f
p,S
M1-9
electricity
primary energy factors 0 – 1 no

f
p,H
M4-9
heating
5.2.2 Source of data for energy calculation
Input data about products that are required for the calculation described in this standard shall be the data
supplied by the manufacturer if they are declared according to relevant EN product standards. If such data
are not declared by the manufacturer or if the required data are not product data (system data etc.), default
values are given in Annex B.
Default data given in Annex B may be replaced by other data, for example nationally determined data. To
ensure consistency with this calculation method, input data shall be presented according to the template
given in Annex A.
NOTE Compliance with the template given in Annex A does not guarantee that the new data set is consistent.
6 Output data for energy calculation
Data in Table 4 is describing output data for EPB calculations.
Table 4 — Output data for energy calculation
Range Intended Varying
Name Symbol Unit
destination
l/s m /h 0 - ∞ no
average demand controlled air
qV,dc l/(sm ) M5-2
volume flow
3 2
m /(hm )
l/s m /h 0 - ∞ no
ventilation outdoor air volume
q l/(sm ) M5-2
V;ODA
flow
3 2
m /(hm )
0 - ∞ M5-2 no
-3
Specific fan power PSFP W.m .s M5-6
M5-10
0 - 1 M5-6 no
overall fan motor efficiency η -
e
M5-10
Heat recovery coefficient of 0 – 1 no

ε
- M5-6
performance
Heat recovery energy 0 – 1 no
- M5-6
ηe
efficiency
Heat recovery temperature 0 – 1 no
ηt - M5-2
ration
Heat recovery humidity ratio ηh - 0 – 1 M5-2 no
0 - ∞ M5-9 no
primary energy performance
E 3
P,V Wh/(m /h·a)
HVAC unit
M5-10
7 Indoor environment
7.1 General
Ventilation, air-conditioning or room-conditioning systems influence the following parameters:
— thermal environment;
— indoor air quality;
— indoor air humidity;
— acoustic environment.
NOTE The comfort and the performance of persons in a room is also dependent on other influences such as: type
of work and configuration of working place, lighting and colours, size of room, furniture, view to the outside, working
conditions and working relationships and individual factors.

Symbol according to EU 327/2011.
Symbol according to EN 13053.
The design assumptions for the indoor environment are based on design agreements. Typical design
assumptions are given in 8.3 to 8.7, more basic information including categories and default values about the
design criteria in M1-6 and further guidance on air quality is given in 8.7 and 8.8. The agreed requirements
for the thermal environment, indoor air quality, indoor air humidity and the acoustic environment are valid
for occupied zone as defined in 7.2 only. A system shall be designed for the specific needs of the project.
7.2 Occupied zone
The requirements for the indoor environment shall be satisfied in the occupied zone. This means that all
measurements dealing with comfort criteria shall be related to this zone. The total area of a room can be
used to evaluate the requirements, but the comfort criteria are not guaranteed beyond the occupied zone.
The occupied zone is dependent on the geometry and the use of the room and shall be specified case by case.
Typical dimensions for the occupied zone are given in Table 5 and indicated in Figure 1.
Table 5 — Dimensions for the occupied zone
Distance from the inner surface of Typical range (m) Default value (m)
Floors (lower boundary) A 0,00 to 0,20 0,05
Floors (upper boundary) B 1,30 to 2,00 1,80
External windows and doors C 0,50 to 1,50 1,00
HVAC appliances  D 0,50 to 1,50 1,00
External walls  E 0,15 to 0,75 0,50
Internal walls  F 0,15 to 0,75 0,50
Doors, transit zones etc. G Special agreement -
a)
b)
Key
A vertical section
B plan view
Figure 1 — Description of the occupied zone
Special agreements should also be considered for the following types of zone, in which it could be difficult to
meet the requirements to the thermal environment, especially with respect to draught and temperature:
a) transit zones;
b) zones close to doors that are often used or open;
c) zones close to supply air terminals;
d) zones close to units with high heat production or airflow rate.
Except when indicated or agreed otherwise, zones a) and b) are not considered part of the occupied zone,
but zones c) and d) are considered part of the occupied zone.
If the use of a room is not based on the room dimensions but on other factors, the occupied zone can be
defined according to the arrangement of working areas and equipment therein or by the location of the
breathing zone.
8 Agreement of design criteria
8.1 General
The design criteria specify the information needed to design the system. These criteria also constitute the
basis for the measurements that shall be carried out during the hand-over process. They provide the
common language between all the parties including the client, designer, contractor and the operation and
maintenance personnel.
Information necessary to design the system is organised on the basis of various documents outlined in 8.3 to
8.13. If the method used for dimensioning the system requires more details, they shall be provided.
Calculation procedure for the energy requirements of the ventilation and air conditioning system is
presented in M5-6-1, M5-5, M4-1, M4-4, M4-9, M4-3, M4-8 considering M1-9.
8.2 Principles
Although in this standard the terms “client”, “designer” or “contractor” are used to describe the function, the
responsibilities are dependent on the contract. The use of these terms does not presuppose any definition of
responsibility for the information. Nevertheless, if one party does not provide the information, the other
shall ask for it or make and record the necessary assumptions. All key design decisions shall be agreed and
documented.
The description of the characteristics of the environment and the structure of the building shall be obtained
for design. The desired results required at the time of hand-over and during normal operation shall be
specified and documented.
The description of the building with construction data, use and requirements is an evolving process with an
increasing degree of detail and accuracy with the evolution of the project. Therefore the use of all
specifications shall always be stated clearly. The details about the information needed are also dependent on
the calculation method that is employed.
A classification system for the use of the building entities (M1-6) and specifying the requirements (according
to this standard) shall be used throughout the design.
The design requirements of all entities and usage schemes shall be specified according to this standard.
8.3 General building characteristics
8.3.1 Location, outdoor conditions, neighbourhood
Information about the location of the relevant building, the significant neighbourhood characteristics such as
adjacent buildings, shading, reflections, emissions, roads, airfields, sea coast, special requirements and all
other information that influence the building design shall be specified in design. The category of outdoor air
shall be defined in accordance with Table 8.
8.3.2 Design weather data
Information shall be given on climate data; as a minimum, design conditions for winter and summer are
required, as well as annual data for energy calculation. The most important climate parameters for the
design are:
— Winter: outdoor temperature and wind velocity;
— Summer: outdoor temperature, humidity and solar radiation.
...