EN 1264-2:2021
(Main)Water based surface embedded heating and cooling systems - Part 2: Floor heating: Methods for the determination of the thermal output using calculations and experimental tests
Water based surface embedded heating and cooling systems - Part 2: Floor heating: Methods for the determination of the thermal output using calculations and experimental tests
The EN 1264 series gives guidelines for surface embedded heating and cooling systems installed in buildings, residential and non-residential (e.g. office, public, commercial and industrial buildings) and focuses on systems installed for the purpose of thermal comfort.
The EN 1264 series gives guidelines for water based heating and cooling systems embedded into the enclosure surfaces of the room to be heated or to be cooled. It also specifies the use of other heating media instead of water, as appropriate.
The EN 1264 series specifies standardized product characteristics by calculation and testing the thermal output of heating for technical specifications and certification. For the design, construction and operation of these systems, see EN 1264-3 and EN 1264-4 for the types A, B, C, D, H, I and J. For the types E, F and G, see the EN ISO 11855 series.
The systems specified in the EN 1264 series are adjoined to the structural base of the enclosure surfaces of the building, mounted directly or with fixing supports. The EN 1264 series does not specify ceiling systems mounted in a suspended ceiling with a designed open air gap between the system and the building structure which allows the thermally induced circulation of the air. The thermal output of these systems can be determined according to the EN 14037 series and EN 14240.
EN 1264-2 specifies hot water floor heating systems. The application of EN 1264-5 requires the prior use of EN 1264-2. EN 1264-5 specifies the conversion of the thermal output of floor heating systems determined in EN 1264-2 into the thermal output of heating surfaces embedded in walls and ceilings as well as into the thermal output of cooling surfaces embedded in floors, walls and ceilings.
EN 1264-2 specifies the boundary conditions and the test methods for the determination of the thermal output of hot water floor heating systems as a function of the temperature difference between the heating medium and the room temperature.
The thermal output is tested by a calculation method and by a measurement method. The calculation method is applicable to systems corresponding to the definitions in EN 1264-1 (type A, B, C, D, H, I and J). The measurement method gives guidance for systems not corresponding to these definitions. The calculation method and the measurement method are consistent with each other and provide correlating and adequate test results.
The test results, expressed depending on further parameters, are the standard specific thermal output and the associated standard temperature difference between the heating medium and the room temperature as well as fields of characteristic curves showing the relationship between the specific thermal output and the temperature difference between the heating medium and the room.
Raumflächenintegrierte Heiz- und Kühlsysteme mit Wasserdurchströmung - Teil 2: Fußbodenheizung: Prüfverfahren für die Bestimmung der Wärmeleistung unter Benutzung von Berechnungsmethoden und experimentellen Methoden
EN 1264 gibt Leitlinien für in Wohn- und anderen Gebäuden (z. B. Bürogebäuden, öffentlichen Gebäuden sowie Gewerbe- und Industriegebäuden) installierte raumflächenintegrierte Heiz- und Kühlsysteme und legt einen Schwerpunkt auf Systeme, die für den Zweck der thermischen Behaglichkeit installiert werden.
Die Normenreihe EN 1264 gibt Leitlinien für Heiz- und Kühlsysteme mit Wasserdurchströmung, die in die Raum¬umschließungsflächen des zu heizenden oder des zu kühlenden Raumes eingebettet sind. Sie legt ggf. auch die entsprechende Verwendung anderer Heizmittel als Wasser fest.
Die Normenreihe EN 1264 legt die Identifizierung standardisierter Produktmerkmale durch Berechnung und Prüfung der Wärmeleistung der Heizung für technische Spezifikationen und die Zertifizierung fest. Für das Design, den Bau und den Betrieb dieser Anlagen siehe EN 1264 3 und EN 1264 4 für die Typen A, B, C, D, H, I und J. Für die Typen E, F und G siehe Normenreihe EN ISO 11855.
Die in der Normenreihe EN 1264 festgelegten Systeme grenzen an den tragenden Untergrund der Umschließungsflächen des Gebäudes an und werden direkt oder mit Befestigungshalterungen angebracht. Die Normenreihe EN 1264 trifft keine Festlegungen für in abgehängten Decken montierte Deckensysteme mit einem auslegungsgemäßen offenen Luftspalt zwischen dem System und der Gebäudestruktur, der eine thermisch induzierte Umwälzung der Luft erlaubt. Die Wärmeleistung dieser Systeme kann nach der Normenreihe EN 14037 und EN 14240 bestimmt werden.
EN 1264 2 legt Warmwasser-Fußbodenheizsysteme fest. Die Anwendung von EN 1264 5 erfordert die vorherige Anwendung von EN 1264 2. EN 1264 5 legt die Umrechnung der in EN 1264 2 bestimmten Wärmeleistung der Fußbodenheizsysteme in die Wärmeleistung von Heizflächen in Wänden und Decken sowie in die Kühlleistung von Kühlflächen in Fußböden, Wänden und Decken fest.
EN 1264 2 legt die Randbedingungen und die Prüfverfahren für die Bestimmung der Wärmeleistung von Warmwasser-Fußbodenheizsystemen in Abhängigkeit von der Differenz zwischen der Heizmittel- und der Raumtemperatur fest.
Die Wärmeleistung wird durch ein Berechnungsverfahren und ein Messverfahren geprüft. Das Berechnungsverfahren ist auf Systeme anwendbar, die den Definitionen nach EN 1264 1 (Typ A, B, C, D, H, I und J) entsprechen. Bei Systemen, die diesen Definitionen nicht entsprechen, gibt das Messverfahren Leitlinien. Das Berechnungsverfahren und das Messverfahren entsprechen einander und liefern korrelierende, adäquate Prüfergebnisse.
Als Prüfergebnisse werden die spezifische Norm-Wärmeleistung mit der zugehörigen Norm-Differenz zwischen der Heizmittel- und der Raumtemperatur sowie Kennlinienfelder für die Beziehung zwischen der spezifischen Wärmeleistung und der Differenz zwischen der Heizmittel- und der Raumtemperatur in Abhängigkeit von weiteren Parametern angegeben.
Systèmes de surfaces chauffantes et rafraîchissantes hydrauliques intégrées - Partie 2: Chauffage par le sol: Méthodes de démonstration pour la détermination de l'émission thermique utilisant des méthodes par le calcul et à l'aide de méthodes d'essai
La série EN 1264 fournit des lignes directrices pour les systèmes de surfaces chauffantes et rafraîchissantes intégrées dans les bâtiments résidentiels et non résidentiels (par exemple, des bureaux, des bâtiments publics, commerciaux et industriels), et se concentre sur les systèmes installés à des fins de confort thermique.
La série EN 1264 fournit des lignes directrices pour les systèmes de surfaces chauffantes et rafraîchissantes intégrées dans les parois des pièces à chauffer ou à rafraîchir. Elle spécifie également l'utilisation de fluides caloporteurs autres que l'eau, le cas échéant.
La série EN 1264 spécifie les caractéristiques normalisées des produits en calculant et en mettant à l'essai l'émission thermique du chauffage pour les spécifications techniques et la certification. Pour la conception, la construction et le fonctionnement de ces systèmes, voir l'EN 1264-3 et l'EN 1264-4 pour les types A, B, C, D, H, I et J. Pour les types E, F et G, voir la série EN ISO 11855.
Les systèmes spécifiés dans la série EN 1264 sont fixés directement ou à l'aide de supports de fixation au plancher porteur des parois du bâtiment. La série EN 1264 ne spécifie pas les systèmes de plafond montés dans un plafond suspendu, dont l'entrefer ouvert conçu entre le système et la structure du bâtiment permet la circulation de l'air induite par la chaleur. L'émission thermique de ces systèmes peut être déterminée selon la série EN 14037 et l'EN 14240.
L'EN 1264-2 spécifie les systèmes de chauffage hydrauliques par le sol. L'application de l'EN 1264-5 nécessite l'utilisation préalable de l'EN 1264-2. L'EN 1264-5 spécifie la conversion de l'émission thermique des systèmes de chauffage par le sol déterminée dans l'EN 1264-2 en émission thermique des surfaces chauffantes intégrées dans les murs et les plafonds ou en émission thermique des surfaces rafraîchissantes intégrées dans les sols, les murs et les plafonds.
L'EN 1264-2 spécifie les conditions limites et les méthodes d'essai pour la détermination de l'émission thermique des systèmes de chauffage par le sol à circulation d'eau chaude sous la forme d'une fonction de la différence de température entre le fluide caloporteur et la température ambiante.
L'émission thermique est mise à l'essai par une méthode de calcul et par une méthode de mesure. La méthode de calcul s'applique aux systèmes correspondant aux définitions données dans l'EN 1264-1 (types A, B, C, D, H, I et J). La méthode de mesure fournit des recommandations pour les systèmes ne correspondant pas à ces définitions. Ces deux méthodes sont convergentes et fournissent des résultats d'essai concordants.
Les résultats de l'essai, exprimés en fonction d'autres paramètres, constituent l'émission thermique surfacique normalisée et la différence de température normalisée associée entre le fluide caloporteur et la pièce, ainsi que les familles des courbes caractéristiques qui montrent la relation existant entre l'émission thermique surfacique et la différence de température entre le fluide caloporteur et la pièce.
Ploskovni sistemi za ogrevanje in hlajenje z vodo - 2. del: Talno ogrevanje - Metode za določevanje oddaje toplote z izračuni in preskušanjem
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Standards Content (Sample)
SLOVENSKI STANDARD
01-julij-2021
Nadomešča:
SIST EN 1264-2:2009+A1:2013
Ploskovni sistemi za ogrevanje in hlajenje z vodo - 2. del: Talno ogrevanje -
Metode za določevanje oddaje toplote z izračuni in preskušanjem
Water based surface embedded heating and cooling systems - Part 2: Floor heating:
Methods for the determination of the thermal output using calculations and experimental
tests
Raumflächenintegrierte Heiz- und Kühlsysteme mit Wasserdurchströmung - Teil 2:
Fußbodenheizung: Prüfverfahren für die Bestimmung der Wärmeleistung unter
Benutzung von Berechnungsmethoden und experimentellen Methoden
Systèmes de surfaces chauffantes et rafraîchissantes hydrauliques intégrées - Partie 2:
Chauffage par le sol: Méthodes de démonstration pour la détermination de l'émission
thermique utilisant des méthodes par le calcul et à l'aide de méthodes d'essai
Ta slovenski standard je istoveten z: EN 1264-2:2021
ICS:
91.140.10 Sistemi centralnega Central heating systems
ogrevanja
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN 1264-2
EUROPEAN STANDARD
NORME EUROPÉENNE
May 2021
EUROPÄISCHE NORM
ICS 91.140.10 Supersedes EN 1264-2:2008+A1:2012
English Version
Water based surface embedded heating and cooling
systems - Part 2: Floor heating: Methods for the
determination of the thermal output using calculations and
experimental tests
Systèmes de surfaces chauffantes et rafraîchissantes Raumflächenintegrierte Heiz- und Kühlsysteme mit
hydrauliques intégrées - Partie 2: Chauffage par le sol: Wasserdurchströmung - Teil 2: Fußbodenheizung:
Méthodes de démonstration pour la détermination de Prüfverfahren für die Bestimmung der Wärmeleistung
l'émission thermique utilisant des méthodes par le unter Benutzung von Berechnungsmethoden und
calcul et à l'aide de méthodes d'essai experimentellen Methoden
This European Standard was approved by CEN on 12 April 2021.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2021 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 1264-2:2021 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
Introduction . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 6
4 Thermal boundary conditions . 6
5 Documents for testing . 7
6 Calculation of the specific thermal output (characteristic curves and limit curves) . 7
6.1 General approach . 7
6.2 Systems with pipes installed inside the screed (types A, C, H, I, J) . 9
6.3 Systems with pipes installed below the screed or timber floor (type B) . 11
6.4 Systems with surface elements (plane section systems, type D) . 12
6.5 Limits of the specific thermal output . 13
6.6 Influence of pipe material, pipe wall thickness and pipe sheathing on the specific
thermal output . 15
6.7 Thermal conductivity of screed with inserts . 15
7 Thermal conductivity of the materials . 16
8 Downward heat loss . 16
9 Test procedure for the determination of the thermal output of systems that cannot
be calculated in accordance with Clause 6 . 17
10 Test report . 20
11 Test system . 20
11.1 General . 20
11.2 Master samples . 20
11.3 Verification of test equipment . 21
11.4 Determination of the values s and ϕ (q , q (R = 0,15)) of primary
m M,s N,M,s G,M,s λ;B
master samples . 21
11.5 Verification of software . 21
12 Calculation of the specific heat capacity of the system (C-Value) . 22
Annex A (normative) Figures and tables . 23
Annex B (normative) Influence of the heat exchange coefficient inside the pipe on the
specific thermal output . 38
Annex C (normative) Material data . 39
Bibliography . 41
European foreword
This document (EN 1264-2:2021) has been prepared by Technical Committee CEN/TC 130 “Space
heating appliances without integral heat sources”, the secretariat of which is held by UNI.
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 November 2021 and conflicting national standards
shall be withdrawn at the latest by November 2021.
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 1264-2:2008+A1:2012.
The main changes compared to the previous edition are listed below:
a) Modification of the Title;
b) Clarification of the Scope;
c) Improved wording, especially the term “prove method”;
d) Modification of Clause 9;
e) Deletion of Clause 10, Test procedure for the determination of the effective thermal resistance of
carpets and all references to this Clause;
f) Deletion of Figures A.9, A.10 and A.11;
g) Table A.13, Heat conductivities for materials was moved to the new Annex C and was modified;
h) Deletion of Annex B, Test procedure for the determination of parameters for application in the
EN 15377 series;
i) Addition of new Clause 12, Calculation of the specific heat capacity of the system (C-Value).
EN 1264, Water based surface embedded heating and cooling systems, consists of the following parts:
— Part 1: Definitions and symbols;
— Part 2: Floor heating: Methods for the determination of the thermal output using calculations and
experimental tests;
— Part 3: Dimensioning;
— Part 4: Installation;
— Part 5: Determination of the thermal output for wall and ceiling heating and for floor, wall and ceiling
cooling.
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.
Introduction
The EN 1264 series is based on the realization that in the field of commercial trade, the thermal output
of heating and cooling systems represents the basis of rating. In order to be able to evaluate and
compare different heating and/or cooling systems, it is therefore necessary to refer to values
determined using one single, unambiguously defined method. The basis for doing so is the test methods
for the determination of the thermal output of floor heating systems specified in EN 1264-2. In analogy
to EN 442-2, Radiators and convectors — Part 2: Test methods and rating, these test methods provide
characteristic partial load curves under defined boundary conditions as well as the characteristic
output of the system represented by the standard thermal output together with the associated standard
temperature difference between the heating medium and the room temperature.
1 Scope
The EN 1264 series gives guidelines for surface embedded heating and cooling systems installed in
buildings, residential and non-residential (e.g. office, public, commercial and industrial buildings) and
focuses on systems installed for the purpose of thermal comfort.
The EN 1264 series gives guidelines for water based heating and cooling systems embedded into the
enclosure surfaces of the room to be heated or to be cooled. It also specifies the use of other heating
media instead of water, as appropriate.
The EN 1264 series specifies standardized product characteristics by calculation and testing the
thermal output of heating for technical specifications and certification. For the design, construction and
operation of these systems, see EN 1264-3 and EN 1264-4 for the types A, B, C, D, H, I and J. For the
types E, F and G, see the EN ISO 11855 series.
The systems specified in the EN 1264 series are adjoined to the structural base of the enclosure
surfaces of the building, mounted directly or with fixing supports. The EN 1264 series does not specify
ceiling systems mounted in a suspended ceiling with a designed open air gap between the system and
the building structure which allows the thermally induced circulation of the air. The thermal output of
these systems can be determined according to the EN 14037 series and EN 14240.
EN 1264-2 specifies hot water floor heating systems. The application of EN 1264-5 requires the prior
use of EN 1264-2. EN 1264-5 specifies the conversion of the thermal output of floor heating systems
determined in EN 1264-2 into the thermal output of heating surfaces embedded in walls and ceilings as
well as into the thermal output of cooling surfaces embedded in floors, walls and ceilings.
EN 1264-2 specifies the boundary conditions and the test methods for the determination of the thermal
output of hot water floor heating systems as a function of the temperature difference between the
heating medium and the room temperature.
The thermal output is tested by a calculation method and by a measurement method. The calculation
method is applicable to systems corresponding to the definitions in EN 1264-1 (type A, B, C, D, H, I
and J). The measurement method gives guidance for systems not corresponding to these definitions.
The calculation method and the measurement method are consistent with each other and provide
correlating and adequate test results.
The test results, expressed depending on further parameters, are the standard specific thermal output
and the associated standard temperature difference between the heating medium and the room
temperature as w
...
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