SIST EN 13053:2020

Ventilation for buildings - Air handling units - Rating and performance for units, components and sections

This European Standard specifies requirements and testing for ratings and performance of air handling units as a whole. It also specifies requirements, recommendations, classification, and testing of specific components and sections of air handling units. For many components and sections it refers to component standards, but it also specifies restrictions or applications of standards developed for stand alone components.
This standard is applicable both to standardised designs, which may be in a range of sizes having common construction concepts, and also to custom-design units. It also applies both to air handling units, which are completely prefabricated, and to units which are built up on site. Generally the units within the scope of this standard include at least a fan, a heat exchanger and an air filter.
This standard is not applicable to the following:
a)   air conditioning units serving a limited area in a building, such as fan coil units;
b)   units for residential buildings;
c)   units producing ventilation air mainly for a manufacturing process.

Lüftung von Gebäuden - Zentrale raumlufttechnische Geräte - Leistungskenndaten für Geräte, Komponenten und Baueinheiten

Dieses Dokument legt Anforderungen für Lüftungsgeräte für Nichtwohngebäude, NRVU-Geräte, und insbesondere Luftbehandlungsgeräte (RLT-Geräte) fest und schreibt die Prüfung der Leistungskenndaten vor. Es legt Anforderungen, Klassifizierung und Prüfung für Bauteile und Baueinheiten von Luftbehandlungsgeräten fest.
Dieses Dokument gilt sowohl für Prüfungen in einem Labor als auch für Vor-Ort-Prüfungen. Dieses Dokument ist sowohl für seriengefertigte als auch für maßgefertigte Luftbehandlungsgeräte anwendbar.
Dieses Dokument gilt für RLT-Geräte und einzelne Baueinheiten von RLT-Geräten mit einem Auslegungsvolumenstrom > 250 m3 · h−1. Dieses Dokument gilt für unidirektionale Lüftungsgeräte (UVU) mit die Filtration ergänzenden Luftbehandlungskomponenten.
Diese Norm gilt nicht für
   unidirektionale und bidirektionale Lüftungsgeräte im Wohnbereich;
   unidirektionale Lüftungsgeräte für Nichtwohngebäude, die lediglich aus einem Gehäuse mit Ventilator und einem oder auch keinem Filter bestehen.
ANMERKUNG 1   Lüftungsgeräte für Wohngebäude werden in EN 13142 behandelt.
ANMERKUNG 2   Unidirektionale Lüftungsgeräte für Nichtwohngebäude, die lediglich aus einem Gehäuse mit Ventilator und einem oder auch keinem Filter bestehen, werden in EN 17291 behandelt.

Ventilation des bâtiments - Caissons de traitement d'air - Classification et performance des unités, composants et sections

Le présent document spécifie les prescriptions et les essais pour la classification et la performance des unités de ventilation non résidentielles, NRVU, spécifiquement les centrales de traitement d'air (CTA). Il spécifie les prescriptions, les classifications et l'essai des composants et sections des centrales de traitement d'air.
Le présent document s'applique aux essais en laboratoire et aux essais in situ. Le présent document s'applique aux centrales de traitement d'air fabriquées en série et aux centrales de traitement d'air fabriquées sur mesure.
Le présent document s'applique aux centrales de traitement d'air (CTA) et aux sections individuelles de centrales de traitement d'air (CTA) ayant un débit d'air de dimensionnement > 250 m3h-1. Le présent document s'applique aux UVU avec des composants de traitement d'air supplémentaires en plus de la filtration.
La présente norme n’inclus pas :
-   les unités de ventilation résidentielles unidirectionnelles et bidirectionnelles ;
-   les unités de ventilation unidirectionnelles non résidentielles qui se composent uniquement d'une enveloppe, d'un ventilateur avec ou sans filtre.
NOTE 1   Les unités de ventilation résidentielles sont couvertes par l'EN 13142.
NOTE 2   Les unités de ventilation unidirectionnelles non résidentielles qui se composent uniquement d'une enveloppe, d'un ventilateur avec ou sans filtre sont couvertes par l'EN 17291.

Prezračevanje stavb - Klimatske naprave - Ocenjevanje in lastnosti naprav, sestavnih delov in sklopov

Ta evropski standard določa zahteve in preskuse za ocenjevanje ter lastnosti klimatske naprave kot celote. Prav tako določa zahteve, priporočila, razvrstitev ter preskušanje določenih sestavnih delov in sklopov klimatskih naprav. Pri številnih sestavnih delih in sklopih se navezuje na standarde sestavnih delov, vendar določa tudi omejitve ali uporabo standardov, pripravljenih za samostojne sestavne dele.
Standard se uporablja tako za standardizirane modele, ki so različno veliki, a imajo skupno konstrukcijsko zasnovo, kot tudi za enote, načrtovane po meri. Uporablja se za predizdelane klimatske naprave in tudi za enote, ki so izdelane in vgrajene na izbrani lokaciji. Enote s področja uporabe tega standarda na splošno vključujejo vsaj ventilator, izmenjevalec toplote in zračni filter. Ta standard se ne uporablja za:
a) klimatske naprave, namenjene omejenemu prostoru stavbe, na primer enote ventilatorskih tuljav;
b) enote za stanovanjske stavbe;
c) enote, ki prezračujejo prostor predvsem za namene proizvodnega procesa.

General Information

• Status: Published
• Public Enquiry End Date: 04-Apr-2017
• Publication Date: 09-Jan-2020
• ICS: 91.140.30 - Ventilation and air-conditioning systems
• Technical Committee: OGS - Heating for buildings
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 30-Dec-2019
• Due Date: 05-Mar-2020
• Completion Date: 10-Jan-2020
• Directive: 1253/2014 - Commission Regulation (EU) No 1253/2014 of 7 July 2014 implementing Directive 2009/125/EC of the European Parliament and of the Council with regard to ecodesign requirements for ventilation units
• Directive: 1254/2014 - Commission Delegated Regulation (EU) No 1254/2014 of 11 July 2014 supplementing Directive 2010/30/EU of the European Parliament and of the Council with regard to energy labelling of residential ventilation units
• Directive: TP053 - Pravilnik o prezračevanju in klimatizaciji stavb
• Mandate: M/495 - Standardisation mandate to CEN, CENELEC and ETSI under Directive 2009/125/EC relating to harmonised standards in the field of Ecodesign
• Mandate: M/537 - [C2015)8325] Standardisation request to the European Committee for Standardisation as regards ventilation units in support of Regulation (EU) No 1253/2014 and Delegated Regulation (EU) No 1254/2014
• Ref Project: EN 13053:2019 - Ventilation for buildings - Air handling units - Rating and performance for units, components and sections

Relations

• Replaces: SIST EN 13053:2007+A1:2011 - Ventilation for buildings - Air handling units - Rating and performance for units, components and sections
• Effective Date: 01-Feb-2020

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN 13053:2020
01-februar-2020
Nadomešča:
SIST EN 13053:2007+A1:2011
Prezračevanje stavb - Klimatske naprave - Ocenjevanje in lastnosti naprav,
sestavnih delov in sklopov
Ventilation for buildings - Air handling units - Rating and performance for units,
components and sections
Lüftung von Gebäuden - Zentrale raumlufttechnische Geräte - Leistungskenndaten für
Geräte, Komponenten und Baueinheiten
Ventilation des bâtiments - Caissons de traitement d'air - Classification et performance
des unités, composants et sections
Ta slovenski standard je istoveten z: EN 13053:2019
ICS:
91.140.30 Prezračevalni in klimatski Ventilation and air-
sistemi conditioning systems
SIST EN 13053:2020 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 13053:2020

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SIST EN 13053:2020


EN 13053
EUROPEAN STANDARD

NORME EUROPÉENNE

December 2019
EUROPÄISCHE NORM
ICS 91.140.30 Supersedes EN 13053:2006+A1:2011
English Version

Ventilation for buildings - Air handling units - Rating and
performance for units, components and sections
Ventilation des bâtiments - Centrales de traitement Lüftung von Gebäuden - Zentrale raumlufttechnische
d'air - Classification et performance des unités, Geräte - Leistungskenndaten für Geräte, Komponenten
composants et sections und Baueinheiten
This European Standard was approved by CEN on 28 September 2018.

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
© 2019 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 13053:2019 E
worldwide for CEN national Members.

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SIST EN 13053:2020
EN 13053:2019 (E)
Contents Page
European foreword . 5
Introduction . 6
1 Scope . 7
2 Normative references . 7
3 Terms and definitions . 9
4 Symbols and abbreviations . 12
5 Ratings and performance of the entire air handling unit . 15
5.1 General . 15
5.2 Testing of aerodynamic performance . 15
5.2.1 Test method . 15
5.2.2 Characteristics and quantities. 16
5.2.3 Measurement procedure . 18
5.3 Testing of acoustic performance . 20
5.3.1 General . 20
5.3.2 Specific requirements concerning the set-up of acoustic tests . 21
5.4 Testing of internal specific fan power of ventilation components . 25
5.4.1 General . 25
5.4.2 Test method . 28
5.4.3 Measurement uncertainties . 33
5.5 Tolerances . 34
5.6 Test report . 35
6 Ratings and performance of components and sections . 38
6.1 General . 38
6.2 Casing . 38
6.3 Fan section . 41
6.3.1 General . 41
6.3.2 Power input of fans . 42
6.4 Coils . 42
6.4.1 General . 42
6.4.2 Testing . 43
6.4.3 Construction . 43
6.4.4 Cooler/Droplet eliminator. 43
6.5 Heat recovery sections . 44
6.5.1 General . 44
6.5.2 Classifications and requirements . 44
6.5.3 Testing . 46
6.5.4 Construction . 46
6.6 Damper sections . 47
6.6.1 General . 47
6.6.2 Requirements and testing . 47
6.7 Mixing sections . 47
6.7.1 General . 47
6.7.2 Categories and characteristics . 47
6.7.3 Requirements . 48
2

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EN 13053:2019 (E)
6.7.4 Measurements . 50
6.7.5 Field testing of mixing efficiency . 51
6.7.6 Condition for pressure loss measurement of ventilation component due to mixing . 51
6.8 Humidifiers . 51
6.8.1 General . 51
6.8.2 Categories . 52
6.8.3 Requirements . 52
6.9 Filter sections . 55
6.9.1 General requirements . 55
6.9.2 Filters installed in air handling units . 55
6.10 Passive sound attenuation sections . 56
7 Extended hygiene requirements for special applications . 56
7.1 General . 56
7.2 Accessibility . 56
7.3 Smoothness . 57
7.4 Inspection windows and lights . 57
7.5 Drainage/prevention of condensation, humidifiers . 57
7.6 Air leakage . 57
8 Instructions for installation, operation and maintenance . 57
8.1 Installation . 57
8.2 Operation and maintenance . 58
8.3 Documentation and labelling . 58
Annex A (informative) Air handling units - Heat recovery – Defrosting - Requirements and
testing . 59
A.1 General . 59
A.2 Defrosting . 59
A.2.1 Defrosting heat factor . 59
A.2.2 Non-cyclic defrosting . 59
A.2.3 Cyclic defrosting . 59
A.3 Testing . 60
A.3.1 Test rig . 60
A.3.2 Duty points . 60
A.3.3 Test procedures . 61
A.3.4 Testing of defrosting heat factor . 61
A.3.5 Total measuring time . 61
A.4 Test report . 61
A.4.1 Heat recovery device . 61
A.4.2 Defrosting heat factor . 61
Annex B (informative) Air handling units – Heat recovery – Characteristics . 63
B.1 Efficiency of the heat recovery . 63
B.2 Evaluation . 65
B.3 Evaluation of auxiliary energies. 65
B.4 Further characteristics . 66
3

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EN 13053:2019 (E)
B.5 Efficiency . 66
B.6 View of yearly energy . 66
Annex C (informative) Static pressure measurement . 68
C.1 Pressure measurement inside a unit . 68
C.2 Pressure measurements in duct-connections outside the unit . 69
Annex ZA (informative) Relationship between this European Standard and the ecodesign
requirements of Commission Regulation (EU) No 1253/2014 aimed to be covered . 70
Bibliography . 72

4

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SIST EN 13053:2020
EN 13053:2019 (E)
European foreword
This document (EN 13053:2019) 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 June 2020, and conflicting national standards shall be
withdrawn at the latest by June 2020.
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 13053:2006+A1:2011.
This document has been prepared under a standardization request given to CEN by the European
Commission and the European Free Trade Association, and supports essential requirements of
EU Directive.
For relationship with EU Directive, see informative Annex ZA, which is an integral part of this
document.
This document has been revised and includes new requirements according to Ecodesign requirements
for ventilation units given in EU Commission Regulation No 1253/2014.
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, 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.
5

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SIST EN 13053:2020
EN 13053:2019 (E)
Introduction
This European Standard is a part of a suite of standards for air handling units used for ventilation and
air conditioning of buildings for human occupancy. It considers the ratings and the performance of air
handling units as a whole, the requirements and performance of specific components and sections of air
handling units including hygiene requirements. The position of this standard in the field of mechanical
building services is shown in Figure 1.

Figure 1 — Position of this standard in the field of mechanical building services
6

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SIST EN 13053:2020
EN 13053:2019 (E)
1 Scope
This document specifies requirements and testing for rating and performance of Non Residential
Ventilation Units, NRVU’s, specifically Air Handling Units (AHU’s). It specifies requirements,
classifications and testing of components and sections of air handling units.
This document applies to tests in a laboratory and in situ. This document is applicable both for mass
produced air handling units and tailor-made Air Handling Units.
3 −1
This document applies to AHU and individual sections of AHU with the designed air flow > 250 m · h .
This document applies to UVU's with additional air treatment components in addition to filtration.
This standard does not include:
— residential unidirectional and bidirectional ventilation units;
— nonresidential unidirectional ventilation units which consist of only a casing, a fan with or without
filter.
NOTE 1 Residential ventilation units are covered by EN 13142.
NOTE 2 Nonresidential unidirectional ventilation units which consists only casing, fan with or without filter are
covered by EN 17291.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
EN 308, Heat exchangers — Test procedures for establishing performance of air to air and flue gases heat
recovery devices
EN 1216, Heat exchangers — Forced circulation air-cooling and air-heating coils — Test procedures for
establishing the performance
EN 1751, Ventilation for buildings — Air terminal devices — Aerodynamic testing of damper and valves
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 16211, Ventilation for buildings. Measurement of air flows on site. Methods
EN ISO 3741, Acoustics — Determination of sound power levels and sound energy levels of noise sources
using sound pressure — Precision methods for reverberation test rooms (ISO 3741)
EN ISO 3743-1, Acoustics — Determination of sound power levels and sound energy levels of noise sources
using sound pressure — Engineering methods for small movable sources in reverberant fields — Part 1:
Comparison method for a hard-walled test room (ISO 3743-1)
EN ISO 3744, Acoustics — Determination of sound power levels and sound energy levels of noise sources
using sound pressure — Engineering methods for an essentially free field over a reflecting plane
(ISO 3744)
7

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EN 13053:2019 (E)
EN ISO 3746, Acoustics — Determination of sound power levels and sound energy levels of noise sources
using sound pressure — Survey method using an enveloping measurement surface over a reflecting plane
(ISO 3746)
EN ISO 5136, Acoustics — Determination of sound power radiated into a duct by fans and other air-
moving devices — In-duct method (ISO 5136)
EN ISO 5167-1, Measurement of fluid flow by means of pressure differential devices inserted in circular
cross-section conduits running full — Part 1: General principles and requirements (ISO 5167-1)
EN ISO 5801, Industrial fans — Performance testing using standardized airways (ISO 5801)
EN ISO 7235, Acoustics — Laboratory measurement procedures for ducted silencers and airterminal units
— Insertion loss, flow noise and total pressure loss (ISO 7235)
EN ISO 9614-1, Acoustics — Determination of sound power levels of noise sources using sound intensity —
Part 1: Measurement at discrete points (ISO 9614-1)
EN ISO 9614-2, Acoustics — Determination of sound power levels of noise sources using sound intensity —
Part 2: Measurement by scanning (ISO 9614-2)
EN ISO 9614-3, Acoustics — Determination of sound power levels of noise sources using sound intensity —
Part 3: Precision method for measurement by scanning (ISO 9614-3)
EN ISO 16890-1, Air filters for general ventilation — Part 1: Technical specifications, requirements and
classification system based upon particulate matter efficiency (ePM) (ISO 16890-1)
EN ISO 16890-2, Air filters for general ventilation — Part 2: Measurement of fractional efficiency and air
flow resistance (ISO 16890-2)
EN ISO 16890-3, Air filters for general ventilation — Part 3: Determination of the gravimetric efficiency
and the air flow resistance versus the mass of test dust captured (ISO 16890-3)
EN ISO 16890-4, Air filters for general ventilation — Part 4: Conditioning method to determine the
minimum fractional test efficiency (ISO 16890-4)
ISO 3966, Measurement of fluid flow in closed conduits — Velocity area method using Pitot static tubes
ISO 13347-1, Industrial fans — Determination of fan sound power levels under standardized laboratory
conditions - Part 1: General overview
ISO 13347-2, Industrial fans — Determination of fan sound power levels under standardized laboratory
conditions - Part 2: Reverberant room method
ISO 13347-3, Industrial fans — Determination of fan sound power levels under standardized laboratory
conditions - Part 3: Enveloping surface methods
ISO 13347-4, Industrial fans — Determination of fan sound power levels under standardized laboratory
conditions - Part 4: Sound intensity method
ISO 16956, Thermal performance in the built environment — Determination of air flow rate in building
applications by field measuring methods
8

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SIST EN 13053:2020
EN 13053:2019 (E)
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN 12792:2003 and the following
apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— IEC Electropedia: available at http://www.electropedia.org/
— ISO Online browsing platform: available at http://www.iso.org/obp
3.1
air handling unit
factory made unit encased assembly containing a fan or fans, filtrating device(s) and other necessary
equipment to perform at least one or more of the following functions: heating, cooling, heat recovery,
heat transfer, humidifying, dehumidifying and mixing air
3.2
section
< air handling unit > functional element of an air handling unit consisting of one or more components in
a single casing
3.3
component
< air handling unit > smallest functional element of an air handling unit
3.4
casing
< air handling unit > enclosure of the unit, within which the components are mounted
3.5
damper section
section of air handling unit including a damper or valve
3.6
mixing section
section where e.g. outdoor air flow and the recirculation air flow are mixed in a controlled way
Note 1 to entry: The section generally consists of one damper per air flow and a mixing chamber
3.7
filter section
section including a filter or filters and an associated filterframe
3.8
heat recovery section
section in which heat (and possibly also moisture) is transferred from one airstream into another,
either directly or using an intermediary heat transfer medium
3.9
heating and cooling coils
heat exchangers by means of which heat is transferred from a heat transfer medium to air (heating coil)
or the other way round (cooling coil)
9

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EN 13053:2019 (E)
3.10
sound attenuation section
section in which sound transfer into a ductwork or into ambient air is reduced
3.11
humidifier section
section in which moisture is added to the air
3.12
fan section
section in which one or more fans are installed for moving air
3.13
functions

3.13.1
air treatment
process by which the state of the air is modified with respect to one or more of its characteristics such
as temperature, moisture content, dust content, bacterial count, gas and vapour content
3.13.2
cooling
removal of latent and/or sensible heat
3.13.3
dehumidification
controlled reduction of water vapour from the air
3.13.4
filtration
removal of particulate material from the airstream
3.13.5
heating
transfer of heat from one body or medium to another medium
3.13.6
humidification
controlled addition of water vapour to an air stream or space
3.13.7
sound attenuation
controlled reduction of sound energy
10

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EN 13053:2019 (E)
3.14
characteristics

3.14.1
air flow
movement of air within set boundaries (such as ducts)
3.14.2
air flow rate
volume flow of air passing a given plane divided by time
3.14.3
bypass leakage
unwanted and uncontrolled passing of untreated air into the treated air between the components
within a casing, such as filters and coils
3.14.4
defrosting heat factor
ratio between the energy transferred into the air supply and the maximum recove
...

SLOVENSKI STANDARD
SIST EN 13053:2020
01-februar-2020
Nadomešča:
SIST EN 13053:2007+A1:2011
Prezračevanje stavb - Klimatske naprave - Ocenjevanje in lastnosti naprav,
sestavnih delov in sekcij/sklopov
Ventilation for buildings - Air handling units - Rating and performance for units,
components and sections
Lüftung von Gebäuden - Zentrale raumlufttechnische Geräte - Leistungskenndaten für
Geräte, Komponenten und Baueinheiten
Ventilation des bâtiments - Caissons de traitement d'air - Classification et performance
des unités, composants et sections
Ta slovenski standard je istoveten z: EN 13053:2019
ICS:
91.140.30 Prezračevalni in klimatski Ventilation and air-
sistemi conditioning systems
SIST EN 13053:2020 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 13053:2020

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SIST EN 13053:2020


EN 13053
EUROPEAN STANDARD

NORME EUROPÉENNE

December 2019
EUROPÄISCHE NORM
ICS 91.140.30 Supersedes EN 13053:2006+A1:2011
English Version

Ventilation for buildings - Air handling units - Rating and
performance for units, components and sections
Ventilation des bâtiments - Centrales de traitement Lüftung von Gebäuden - Zentrale raumlufttechnische
d'air - Classification et performance des unités, Geräte - Leistungskenndaten für Geräte, Komponenten
composants et sections und Baueinheiten
This European Standard was approved by CEN on 28 September 2018.

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
© 2019 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 13053:2019 E
worldwide for CEN national Members.

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SIST EN 13053:2020
EN 13053:2019 (E)
Contents Page
European foreword . 5
Introduction . 6
1 Scope . 7
2 Normative references . 7
3 Terms and definitions . 9
4 Symbols and abbreviations . 12
5 Ratings and performance of the entire air handling unit . 15
5.1 General . 15
5.2 Testing of aerodynamic performance . 15
5.2.1 Test method . 15
5.2.2 Characteristics and quantities. 16
5.2.3 Measurement procedure . 18
5.3 Testing of acoustic performance . 20
5.3.1 General . 20
5.3.2 Specific requirements concerning the set-up of acoustic tests . 21
5.4 Testing of internal specific fan power of ventilation components . 25
5.4.1 General . 25
5.4.2 Test method . 28
5.4.3 Measurement uncertainties . 33
5.5 Tolerances . 34
5.6 Test report . 35
6 Ratings and performance of components and sections . 38
6.1 General . 38
6.2 Casing . 38
6.3 Fan section . 41
6.3.1 General . 41
6.3.2 Power input of fans . 42
6.4 Coils . 42
6.4.1 General . 42
6.4.2 Testing . 43
6.4.3 Construction . 43
6.4.4 Cooler/Droplet eliminator. 43
6.5 Heat recovery sections . 44
6.5.1 General . 44
6.5.2 Classifications and requirements . 44
6.5.3 Testing . 46
6.5.4 Construction . 46
6.6 Damper sections . 47
6.6.1 General . 47
6.6.2 Requirements and testing . 47
6.7 Mixing sections . 47
6.7.1 General . 47
6.7.2 Categories and characteristics . 47
6.7.3 Requirements . 48
2

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EN 13053:2019 (E)
6.7.4 Measurements . 50
6.7.5 Field testing of mixing efficiency . 51
6.7.6 Condition for pressure loss measurement of ventilation component due to mixing . 51
6.8 Humidifiers . 51
6.8.1 General . 51
6.8.2 Categories . 52
6.8.3 Requirements . 52
6.9 Filter sections . 55
6.9.1 General requirements . 55
6.9.2 Filters installed in air handling units . 55
6.10 Passive sound attenuation sections . 56
7 Extended hygiene requirements for special applications . 56
7.1 General . 56
7.2 Accessibility . 56
7.3 Smoothness . 57
7.4 Inspection windows and lights . 57
7.5 Drainage/prevention of condensation, humidifiers . 57
7.6 Air leakage . 57
8 Instructions for installation, operation and maintenance . 57
8.1 Installation . 57
8.2 Operation and maintenance . 58
8.3 Documentation and labelling . 58
Annex A (informative) Air handling units - Heat recovery – Defrosting - Requirements and
testing . 59
A.1 General . 59
A.2 Defrosting . 59
A.2.1 Defrosting heat factor . 59
A.2.2 Non-cyclic defrosting . 59
A.2.3 Cyclic defrosting . 59
A.3 Testing . 60
A.3.1 Test rig . 60
A.3.2 Duty points . 60
A.3.3 Test procedures . 61
A.3.4 Testing of defrosting heat factor . 61
A.3.5 Total measuring time . 61
A.4 Test report . 61
A.4.1 Heat recovery device . 61
A.4.2 Defrosting heat factor . 61
Annex B (informative) Air handling units – Heat recovery – Characteristics . 63
B.1 Efficiency of the heat recovery . 63
B.2 Evaluation . 65
B.3 Evaluation of auxiliary energies. 65
B.4 Further characteristics . 66
3

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EN 13053:2019 (E)
B.5 Efficiency . 66
B.6 View of yearly energy . 66
Annex C (informative) Static pressure measurement . 68
C.1 Pressure measurement inside a unit . 68
C.2 Pressure measurements in duct-connections outside the unit . 69
Annex ZA (informative) Relationship between this European Standard and the ecodesign
requirements of Commission Regulation (EU) No 1253/2014 aimed to be covered . 70
Bibliography . 72

4

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EN 13053:2019 (E)
European foreword
This document (EN 13053:2019) 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 June 2020, and conflicting national standards shall be
withdrawn at the latest by June 2020.
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 13053:2006+A1:2011.
This document has been prepared under a standardization request given to CEN by the European
Commission and the European Free Trade Association, and supports essential requirements of
EU Directive.
For relationship with EU Directive, see informative Annex ZA, which is an integral part of this
document.
This document has been revised and includes new requirements according to Ecodesign requirements
for ventilation units given in EU Commission Regulation No 1253/2014.
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, 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.
5

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SIST EN 13053:2020
EN 13053:2019 (E)
Introduction
This European Standard is a part of a suite of standards for air handling units used for ventilation and
air conditioning of buildings for human occupancy. It considers the ratings and the performance of air
handling units as a whole, the requirements and performance of specific components and sections of air
handling units including hygiene requirements. The position of this standard in the field of mechanical
building services is shown in Figure 1.

Figure 1 — Position of this standard in the field of mechanical building services
6

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SIST EN 13053:2020
EN 13053:2019 (E)
1 Scope
This document specifies requirements and testing for rating and performance of Non Residential
Ventilation Units, NRVU’s, specifically Air Handling Units (AHU’s). It specifies requirements,
classifications and testing of components and sections of air handling units.
This document applies to tests in a laboratory and in situ. This document is applicable both for mass
produced air handling units and tailor-made Air Handling Units.
3 −1
This document applies to AHU and individual sections of AHU with the designed air flow > 250 m · h .
This document applies to UVU's with additional air treatment components in addition to filtration.
This standard does not include:
— residential unidirectional and bidirectional ventilation units;
— nonresidential unidirectional ventilation units which consist of only a casing, a fan with or without
filter.
NOTE 1 Residential ventilation units are covered by EN 13142.
NOTE 2 Nonresidential unidirectional ventilation units which consists only casing, fan with or without filter are
covered by EN 17291.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
EN 308, Heat exchangers — Test procedures for establishing performance of air to air and flue gases heat
recovery devices
EN 1216, Heat exchangers — Forced circulation air-cooling and air-heating coils — Test procedures for
establishing the performance
EN 1751, Ventilation for buildings — Air terminal devices — Aerodynamic testing of damper and valves
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 16211, Ventilation for buildings. Measurement of air flows on site. Methods
EN ISO 3741, Acoustics — Determination of sound power levels and sound energy levels of noise sources
using sound pressure — Precision methods for reverberation test rooms (ISO 3741)
EN ISO 3743-1, Acoustics — Determination of sound power levels and sound energy levels of noise sources
using sound pressure — Engineering methods for small movable sources in reverberant fields — Part 1:
Comparison method for a hard-walled test room (ISO 3743-1)
EN ISO 3744, Acoustics — Determination of sound power levels and sound energy levels of noise sources
using sound pressure — Engineering methods for an essentially free field over a reflecting plane
(ISO 3744)
7

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SIST EN 13053:2020
EN 13053:2019 (E)
EN ISO 3746, Acoustics — Determination of sound power levels and sound energy levels of noise sources
using sound pressure — Survey method using an enveloping measurement surface over a reflecting plane
(ISO 3746)
EN ISO 5136, Acoustics — Determination of sound power radiated into a duct by fans and other air-
moving devices — In-duct method (ISO 5136)
EN ISO 5167-1, Measurement of fluid flow by means of pressure differential devices inserted in circular
cross-section conduits running full — Part 1: General principles and requirements (ISO 5167-1)
EN ISO 5801, Industrial fans — Performance testing using standardized airways (ISO 5801)
EN ISO 7235, Acoustics — Laboratory measurement procedures for ducted silencers and airterminal units
— Insertion loss, flow noise and total pressure loss (ISO 7235)
EN ISO 9614-1, Acoustics — Determination of sound power levels of noise sources using sound intensity —
Part 1: Measurement at discrete points (ISO 9614-1)
EN ISO 9614-2, Acoustics — Determination of sound power levels of noise sources using sound intensity —
Part 2: Measurement by scanning (ISO 9614-2)
EN ISO 9614-3, Acoustics — Determination of sound power levels of noise sources using sound intensity —
Part 3: Precision method for measurement by scanning (ISO 9614-3)
EN ISO 16890-1, Air filters for general ventilation — Part 1: Technical specifications, requirements and
classification system based upon particulate matter efficiency (ePM) (ISO 16890-1)
EN ISO 16890-2, Air filters for general ventilation — Part 2: Measurement of fractional efficiency and air
flow resistance (ISO 16890-2)
EN ISO 16890-3, Air filters for general ventilation — Part 3: Determination of the gravimetric efficiency
and the air flow resistance versus the mass of test dust captured (ISO 16890-3)
EN ISO 16890-4, Air filters for general ventilation — Part 4: Conditioning method to determine the
minimum fractional test efficiency (ISO 16890-4)
ISO 3966, Measurement of fluid flow in closed conduits — Velocity area method using Pitot static tubes
ISO 13347-1, Industrial fans — Determination of fan sound power levels under standardized laboratory
conditions - Part 1: General overview
ISO 13347-2, Industrial fans — Determination of fan sound power levels under standardized laboratory
conditions - Part 2: Reverberant room method
ISO 13347-3, Industrial fans — Determination of fan sound power levels under standardized laboratory
conditions - Part 3: Enveloping surface methods
ISO 13347-4, Industrial fans — Determination of fan sound power levels under standardized laboratory
conditions - Part 4: Sound intensity method
ISO 16956, Thermal performance in the built environment — Determination of air flow rate in building
applications by field measuring methods
8

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SIST EN 13053:2020
EN 13053:2019 (E)
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN 12792:2003 and the following
apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— IEC Electropedia: available at http://www.electropedia.org/
— ISO Online browsing platform: available at http://www.iso.org/obp
3.1
air handling unit
factory made unit encased assembly containing a fan or fans, filtrating device(s) and other necessary
equipment to perform at least one or more of the following functions: heating, cooling, heat recovery,
heat transfer, humidifying, dehumidifying and mixing air
3.2
section
< air handling unit > functional element of an air handling unit consisting of one or more components in
a single casing
3.3
component
< air handling unit > smallest functional element of an air handling unit
3.4
casing
< air handling unit > enclosure of the unit, within which the components are mounted
3.5
damper section
section of air handling unit including a damper or valve
3.6
mixing section
section where e.g. outdoor air flow and the recirculation air flow are mixed in a controlled way
Note 1 to entry: The section generally consists of one damper per air flow and a mixing chamber
3.7
filter section
section including a filter or filters and an associated filterframe
3.8
heat recovery section
section in which heat (and possibly also moisture) is transferred from one airstream into another,
either directly or using an intermediary heat transfer medium
3.9
heating and cooling coils
heat exchangers by means of which heat is transferred from a heat transfer medium to air (heating coil)
or the other way round (cooling coil)
9

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3.10
sound attenuation section
section in which sound transfer into a ductwork or into ambient air is reduced
3.11
humidifier section
section in which moisture is added to the air
3.12
fan section
section in which one or more fans are installed for moving air
3.13
functions

3.13.1
air treatment
process by which the state of the air is modified with respect to one or more of its characteristics such
as temperature, moisture content, dust content, bacterial count, gas and vapour content
3.13.2
cooling
removal of latent and/or sensible heat
3.13.3
dehumidification
controlled reduction of water vapour from the air
3.13.4
filtration
removal of particulate material from the airstream
3.13.5
heating
transfer of heat from one body or medium to another medium
3.13.6
humidification
controlled addition of water vapour to an air stream or space
3.13.7
sound attenuation
controlled reduction of sound energy
10

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EN 13053:2019 (E)
3.14
characteristics

3.14.1
air flow
movement of air within set boundaries (such as ducts)
3.14.2
air flow rate
volume flow of air passing a given plane divided by time
3.14.3
bypass leakage
unwanted and uncontrolled passing of untreated air into the treated air between the components
within a casing, such as filters and coils
3.14.4
defrosting heat factor
ratio between the energy transferred into the air supply and the maximum
...

SLOVENSKI STANDARD
oSIST prEN 13053:2017
01-marec-2017
3UH]UDþHYDQMHVWDYE.OLPDWL2FHQLWHYLQODVWQRVWLNOLPDWRYVHVWDYQLKGHORYLQ
VHNFLM
Ventilation for buildings - Air handling units - Rating and performance for units,
components and sections
Lüftung von Gebäuden - Zentrale raumlufttechnische Geräte - Leistungskenndaten für
Geräte, Komponenten und Baueinheiten
Ventilation des bâtiments - Caissons de traitement d'air - Classification et performance
des unités, composants et sections
Ta slovenski standard je istoveten z: prEN 13053
ICS:
91.140.30 3UH]UDþHYDOQLLQNOLPDWVNL Ventilation and air-
VLVWHPL conditioning systems
oSIST prEN 13053:2017 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN 13053:2017

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oSIST prEN 13053:2017


DRAFT
EUROPEAN STANDARD
prEN 13053
NORME EUROPÉENNE

EUROPÄISCHE NORM

February 2017
ICS 91.140.30 Will supersede EN 13053:2006+A1:2011
English Version

Ventilation for buildings - Air handling units - Rating and
performance for units, components and sections
Ventilation des bâtiments - Caissons de traitment d'air Lüftung von Gebäuden - Zentrale raumlufttechnische
- Classification et performance des caissons, Geräte - Leistungskenndaten für Geräte, Komponenten
composants et sections und Baueinheiten
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee
CEN/TC 156.

If this draft becomes a European Standard, CEN members are bound to comply with the CEN/CENELEC Internal Regulations
which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.

This draft European Standard was established by CEN in three official versions (English, French, German). A version in any other
language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC
Management Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.

Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are
aware and to provide supporting documentation.

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


EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2017 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 13053:2017 E
worldwide for CEN national Members.

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oSIST prEN 13053:2017
prEN 13053:2016 (E)
Contents Page
European foreword . 5
1 Scope . 7
2 Normative references . 7
3 Terms and definitions . 8
4 Symbols and abbreviations . 12
5 Ratings and performance of the entire air handling unit . 15
5.1 General . 15
5.2 Testing of aerodynamic performance . 15
5.2.1 Characteristics and quantities . 15
5.2.2 Test method. 17
5.2.3 Measurement procedure . 17
5.2.4 Evaluation of results . 20
5.3 Testing of acoustic performance . 20
5.3.1 General . 20
5.3.2 Specific requirements concerning the set-up of acoustic tests . 20
5.4 Testing of internal specific fan power of ventilation components . 25
5.4.1 General . 25
5.4.2 Test method. 27
5.4.3 Measurement uncertainties . 31
5.5 Tolerances . 32
5.6 Test report . 33
6 Ratings and performance of components and sections . 36
6.1 General . 36
6.2 Fan section . 39
6.2.1 General . 39
6.2.2 Power input of fans . 39
6.3 Coils . 40
6.3.1 General . 40
6.3.2 Testing . 40
6.3.3 Construction . 41
6.3.4 Cooler/Droplet Eliminator . 41
6.4 Heat recovery sections . 41
6.4.1 General . 41
6.4.2 Classifications and requirements . 42
6.4.3 Testing . 44
6.5 Damper sections . 44
6.5.1 General . 44
6.5.2 Requirements and testing . 45
6.6 Mixing sections . 45
6.6.1 General . 45
6.6.2 Categories and characteristics . 45
6.6.3 Requirements . 46
6.6.4 Measurements . 48
6.6.5 Field testing of mixing efficiency . 49
6.6.6 Condition for pressure loss measurement of ventilation component due to
mixing . 49
2

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prEN 13053:2016 (E)
6.7 Humidifiers. 49
6.7.1 General . 49
6.7.2 Categories . 50
6.7.3 Requirements . 50
6.8 Filter sections . 52
6.8.1 General requirements . 52
6.8.2 Filters installed in air handling units . 53
6.9 Passive sound attenuation sections . 54
7 Extended hygiene requirements for special applications . 54
7.1 General . 54
7.2 Accessibility . 54
7.3 Smoothness . 54
7.4 Inspection windows and lights . 54
7.5 Drainage/prevention of condensation, humidifiers . 55
7.6 Air leakage . 55
8 Instructions for installation, operation and maintenance . 55
8.1 Installation . 55
8.2 Operation and maintenance . 55
8.3 Documentation and labelling . 56
Annex A (informative) Air handling units - Heat recovery – Defrosting -
Requirements and testing . 57
A.1 General . 57
A.2 Defrosting . 57
A.2.1 Defrosting heat factor . 57
A.2.2 Non-cyclic defrosting . 57
A.2.3 Cyclic defrosting . 57
A.3 Testing . 58
A.3.1 Test rig . 58
A.3.2 Duty points . 58
A.3.3 Test procedures . 59
A.3.4 Testing of defrosting heat factor . 59
A.3.5 Total measuring time . 59
A.4 Test report . 60
A.4.1 The heat recovery device . 60
A.4.2 The defrosting heat factor . 60
Annex B (informative) Air handling units – Heat recovery – Characteristics. 61
B.1 Efficiency of the heat recovery . 61
B.2 Evaluation . 63
B.3 Evaluation of auxiliary energies . 63
B.4 Further characteristics . 64
B.5 Efficiency . 64
B.6 View of yearly energy . 64
3

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oSIST prEN 13053:2017
prEN 13053:2016 (E)
Annex ZA (informative) Relationship between this European Standard and the
energy labelling requirements of Commission Regulation (EU) No 1253/2014
of 7 July 2014 aimed to be covered . 65
Bibliography . 67

4

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oSIST prEN 13053:2017
prEN 13053:2016 (E)
European foreword
This document (prEN 13053:2016) has been prepared by Technical Committee CEN/TC 156
“Ventilation for buildings”, the secretariat of which is held by BSI.
This document is currently submitted to the CEN Enquiry.
This document will supersede EN 13053:2006+A1:2011.
This document has been revised and includes new requirements according to Ecodesign
requirements for ventilation units given in EU Commission Regulation No 1253/2014.
This European Standard is a part of a series of standards for air handling units used for
ventilation and air conditioning of buildings for human occupancy. It considers the ratings and
the performance of air handling units as a whole, the requirements and performance of specific
components and sections of air handling units including hygiene requirements. The position of
this standard in the field of mechanical building services is shown in Figure 1.
This document has been prepared under a mandate given to CEN by the European Commission
and the European Free Trade Association, and supports essential requirements of
EU Directive(s).
For relationship with EU Directive(s), see informative Annex ZA, which is an integral part of this
document.
5

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oSIST prEN 13053:2017
prEN 13053:2016 (E)


Figure 1 — Position of this standard in the field of mechanical building services
6

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oSIST prEN 13053:2017
prEN 13053:2016 (E)
1 Scope
This European Standard specifies requirements and testing for rating and performance of non-
residential Air Handling Units (AHU). It specifies requirements, classifications and testing of
components and sections of ventilation units.
For many components and sections it refers to component standards, but it also specifies
restrictions or applications of standards developed for stand-alone components.
This European Standard applies to tests in a laboratory and in situ. This European Standard is
applicable both for mass produced air handling units and tailor made Air Handling Units.
This European Standard applies to AHU and individual sections of AHU with the designed air
3
flow > 250 m /h.
NOTE Units complying with this European Standard can be used in multi dwelling residential
buildings.
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.
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 1216, Heat exchangers — Forced circulation air-cooling and air-heating coils — Test
procedures for establishing the performance
EN 1751, Ventilation for buildings — Air terminal devices — Aerodynamic testing of damper and
valves
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 ISO 3741, Acoustics — Determination of sound power levels and sound energy levels of noise
sources using sound pressure — Precision methods for reverberation test rooms (ISO 3741)
EN ISO 3743-1, Acoustics — Determination of sound power levels and sound energy levels of noise
sources using sound pressure — Engineering methods for small movable sources in reverberant
fields — Part 1: Comparison method for a hard-walled test room (ISO 3743-1)
EN ISO 3744, Acoustics — Determination of sound power levels and sound energy levels of noise
sources using sound pressure — Engineering methods for an essentially free field over a reflecting
plane (ISO 3744)
EN ISO 3746, Acoustics — Determination of sound power levels and sound energy levels of noise
sources using sound pressure — Survey method using an enveloping measurement surface over a
reflecting plane (ISO 3746)
7

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oSIST prEN 13053:2017
prEN 13053:2016 (E)
EN ISO 5136, Acoustics — Determination of sound power radiated into a duct by fans and other
air-moving devices — In-duct method (ISO 5136)
EN ISO 5167-1, Measurement of fluid flow by means of pressure differential devices inserted in
circular cross-section conduits running full — Part 1: General principles and requirements (ISO
5167-1)
EN ISO 5801:2008, Industrial fans — Performance testing using standardized airways (ISO
5801:2007 including Cor 1:2008)
EN ISO 7235, Acoustics — Laboratory measurement procedures for ducted silencers and air-
terminal units — Insertion loss, flow noise and total pressure loss (ISO 7235)
EN ISO 9614-1, Acoustics — Determination of sound power levels of noise sources using sound
intensity — Part 1: Measurement at discrete points (ISO 9614-1)
EN ISO 9614-2, Acoustics — Determination of sound power levels of noise sources using sound
intensity — Part 2: Measurement by scanning (ISO 9614-2)
EN ISO 9614-3, Acoustics — Determination of sound power levels of noise sources using sound
intensity — Part 3: Precision method for measurement by scanning (ISO 9614-3)
ISO 3966, Measurement of fluid flow in closed conduits — Velocity area method using Pitot static
tubes
ISO 16956, Thermal performance in the built environment — Determination of air flow rate in
building applications by field measuring methods
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN 12792:2003 and the
following apply.
3.1
air handling unit
factory made encased assembly consisting of sections containing a fan or fans and other
necessary equipment to perform one or more of the following functions:, filtrating, heating,
cooling, heat recovery, humidifying, dehumidifying and mixing air
3.2
section of air handling unit
functional element of an air handling unit consisting of one or more components in a single
casing
3.3
component of air handling unit
smallest functional element of an air handling unit
3.4
blow-through unit
air handling unit with a section or sections downstream of the supply air fan
3.5
casing of an air-handling unit
enclosure of the unit, within which the components are mounted
8

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oSIST prEN 13053:2017
prEN 13053:2016 (E)
3.6
openings for outdoor air, supply air, extract air, recirculation air and exhaust air
aperture through which air is taken in or discharged from the air handling unit, such as
openings for outdoor air, supply air, recirculation air and exhaust air
3.7
damper section
section of air handling unit including a damper or valve
3.8
mixing section
section where e.g. outdoor air flow and the recirculation air flow are mixed in a controlled way.
The section generally consists of one damper per air flow and a mixing chamber
3.9
filter section
section including a filter or filters and an associated filterframe
3.10
heat recovery section
section in which heat (and possibly also moisture) is transferred from one airstream into
another, either directly or using an intermediary heat transfer medium
3.11
air heating and cooling coils
heat exchangers by means of which heat is transferred from a heat transfer medium to air
(heating coil) or the other way round (cooling coil)
3.12
sound attenuation section
section in which sound transfer into a ductwork or into ambient air is reduced
3.13
humidifier section
section in which moisture is added to the air
3.14
fan section
section in which one or more fans are installed for moving air
3.15
combined section
section within which two or more functions are combined
3.16
functions
3.16.1
air treatment
process by which the state of the air is modified with respect to one or more of its
characteristics such as temperature, moisture content, dust content, bacterial count, gas and
vapour content
9

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oSIST prEN 13053:2017
prEN 13053:2016 (E)
3.16.2
air type
designation of air moving through a ventilation, air conditioning or air treatment installation as
a function of its location relative to the installation, e.g. outdoor air, exhaust air, extract air etc
3.16.3
cooling
removal of latent and/or sensible heat
3.16.4
dehumidification
controlled reduction of water vapour from the air
3.16.5
filtration
removal of particulate material from the airstream
3.16.6
heating
transfer of heat from one body or medium to another medium
3.16.7
humidification
controlled addition of water vapour to an air stream or space
3.16.8
sound reduction
controlled reduction of sound energy
3.17
characteristics
3.17.1
air flow
movement of air within set boundaries (such as ducts)
3.17.2
air flow rate
mass or volume flow of air passing a given plane divided by time
3.17.3
bypass factor
ratio of the diverted air flow to the sum of the main air flow and the diverted air flow
3.17.4
bypass leakage
unwanted and uncontrolled passing of untreated air into the treated air between the
components within a casing, such as filters and coils
3.17.5
deflection of a casing
deformation in mm of the external surfaces of the enclosure when subjected to a positive
(bulging) or negative (caving) pressure. It is given as the measured difference in distance
between a reference plane and the maximum point of deflection when subjected to air pressure
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oSIST prEN 13053:2017
prEN 13053:2016 (E)
3.17.6
defrosting heat factor
ratio between the energy transferred into the air supply and the maximum recoverable energy
in exhaust air, excluding the energy input for defrosting
3.17.7
air leakage factor f
L
air tightness expressed as the air leakage per unit envelope area and pressure difference
(external air leakage)
3.17.8
external total pressure difference
difference between the total pressure at the outlet of the air handling unit and the total pressure
at the inlet
3.17.9
external static pressure difference
difference between the static pressure at the outlet of the air handling unit and the static
pressure at the inlet
3.17.10
humidification efficiency
ratio between the mass of water evaporated by the humidifier and the theoretical mass needed
to achieve saturation at a given temperature
3.17.11
internal air leakage rate
air leakage in between the two air streams within a section
3.17.12
thermal bridging factor
ratio between the lowest temperature difference between any point on the external surface and
the mean internal air temperature and the mean air to air temperature difference
3.17.13
thermal transmittance
heat flow per unit of area and temperature difference
3.18
mass produced air handling unit
air handling units manufactured to the same design and by the same manufacturing process,
with a range of performance characteristics for which the duty point is not defined
Note 1 to entry: Mass produced air handling units (AHUs) are designed for an undefined duty point and
mostly produced in large quantities. Their capacity is generally given in ranges so that they can be used in
different buildings and/or applications.
3.19
tailor made air handling unit
air handling unit individually designed and manufactured for a specific duty point, with defined
and known parameters, designed on a specific order and for a
...