EN 15502-1:2021
(Main)Gas-fired heating boilers - Part 1: General requirements and tests
Gas-fired heating boilers - Part 1: General requirements and tests
This European Standard specifies the common requirements and test methods, as well as the classification, marking and energy labelling of gas-fired central heating boilers that are fitted with atmospheric burners, fan assisted atmospheric burners or fully premixed burners, and are hereafter referred to as “boilers”.
This European Standard is to be used in conjunction with the specific Parts 2 (Part 2-1 and following ones).
This European Standard applies to boilers of types B and C.
NOTE For further background information on appliance types see CEN/TR 1749:2014 [1].
a) that use one or more combustible gases of the three gas families at the pressures stated in EN 437;
b) where the temperature of the water is below or above 105 °C during normal operation;
c) where the maximum operating pressure in the water circuit does not exceed 6 bar;
d) which can give rise to condensation under certain circumstances;
e) which are declared in the instructions for installation to be either a "condensing" boiler or a "low temperature boiler" or a "standard boiler" or an "other boiler". If no declaration is given the boiler is to be considered both a "standard boiler" and an "other boiler";
NOTE The Ecodesign Directive defines "other boilers", "low temperature boilers" and "condensing boilers". The Boiler Efficiency Directive defines "standard boilers", "low temperature boilers" and "condensing boilers". Depending on the legislation applied, a boiler can be both "a standard boiler" and an "other boiler"."
f) which are intended to be installed inside a building or in a partially protected place;
g) which are intended to produce also hot water either by the instantaneous or storage principle as a single unit.
This European Standard applies to boilers designed for sealed water systems or for open water systems.
NOTE This general standard and the specific standards (see Part 2) provide requirements for boilers with known constructions. For boilers with any alternative constructions, which might not fully be covered by this standard or a specific standard, the risk associated with this alternative construction will need to be assessed.
An example of an assessment methodology, based upon risk assessment, is given in Clause 11.
This European Standard is not intended to cover appliances intended for connection to gas grids where the quality of the distributed gas is likely to vary to a large extent over the lifetime of the appliance (see Annex EE).
This European Standard is not intended to cover appliances designed and constructed to burn gas containing toxic components.
Heizkessel für gasförmige Brennstoffe - Teil 1: Allgemeine Anforderungen und Prüfungen
Dieses Dokument legt die allgemeinen Anforderungen und Prüfmethoden sowie die Klassifizierung, Kennzeichnung und Energiekennzeichnung" von Heizkesseln fest, die mit atmosphärischen Brennern mit oder ohne Ventilator oder mit Vormischbrenner ausgerüstet sind und nachfolgend kurz „Kessel“ genannt werden.
Dieses Dokument ist in Verbindung mit den Teilen 2 (Teil 2-1 und folgende) anzuwenden.
Dieses Dokument gilt für Kessel der Bauart B und C:
ANMERKUNG Für weitere Hintergrundinformationen zu Gerätearten siehe CEN/TR 1749:2014 [1].
a) die mit einem oder mehreren brennbaren Gasen der drei Gasfamilien mit den in EN 437 genannten Drücken betrieben werden;
b) bei denen die Temperatur des Wassers unter normalen Betriebsbedingungen 105 °C nicht überschreitet;
c) deren maximaler wasserseitiger Betriebsdruck 6 bar nicht überschreitet;
d) bei denen sich unter bestimmten Bedingungen Kondenswasser bildet;
e) die in der Installationsanleitung entweder als „Brennwertkessel“ oder als „Niedertemperaturkessel“ oder als „Standardkessel“ oder als „andere Kessel“ bezeichnet werden. Wenn keine Angabe gemacht wird, wird der Kessel sowohl als „Standardkessel“ als auch als „anderer Kessel“ betrachtet;“
ANMERKUNG Die Verordnung für umweltgerechte Gestaltung definiert „andere Kessel“, „Niedertemperaturkessel“ und „Brennwertkessel“. Die Wirkungsgradrichtlinie (en: Boiler Efficiency Directive) definiert „Standardkessel“, „Niedertemperaturkessel“ und „Brennwertkessel“. Basierend auf der angewendeten Gesetzgebung kann ein Kessel sowohl ein „Standardkessel“ als auch ein „anderer Kessel“ sein.
f) die dafür vorgesehen sind, im Gebäude oder an einer teilweise geschützten Stelle aufgestellt zu werden;
g) die dafür vorgesehen sind, nach dem Durchlaufprinzip oder nach dem Speicherprinzip auch Warmwasser herzustellen, wobei das Ganze als eine Einheit vertrieben wird.
Dieses Dokument ist für Kessel anwendbar, die für geschlossene oder offene Wassersysteme ausgelegt sind.
ANMERKUNG Diese allgemeine Norm und die speziellen Normen (siehe Teil 2) beschreiben die Anforderungen für Kessel mit bekannter Bauweise. Für Kessel mit alternativer Bauweise, die eventuell nicht vollständig durch diese oder eine spezielle Norm abgedeckt werden, bedarf das Risiko, das mit dieser alternativen Bauweise verbunden ist, einer Abschätzung.
Ein Beispiel für eine auf einer Risikoanalyse beruhenden Bewertungsmethode wird in Abschnitt 11 beschrieben.
Dieses Dokument ist nicht für Geräte zum Anschluss an Gasversorgungsnetze bestimmt, bei denen die Qualität des verteilten Gases wahrscheinlich über die Lebensdauer des Geräts stark variiert (siehe Anhang EE).
Dieses Dokument behandelt nicht alle Anforderungen für:
a) Geräte über 1 000 kW;
b) Geräte, die für die Verbrennung von Gas ausgelegt und konstruiert sind, das Kohlenmonoxid und andere giftige Komponenten enthält.
Chaudières de chauffage central utilisant les combustibles gazeux - Partie 1: Exigences générales et essais
Le présent document spécifie les exigences et les méthodes d’essai communes, ainsi que la classification, le marquage et l’étiquetage énergétique concernant les chaudières de chauffage central utilisant les combustibles gazeux et équipées de brûleurs atmosphériques, de brûleurs atmosphériques assistés d’un ventilateur ou de brûleurs à prémélange total, ci-après dénommées « chaudières ».
Le présent document est à utiliser conjointement avec les Parties 2 spécifiques (Partie 2-1, Partie 2-2 et suivantes).
Le présent document s’applique aux chaudières des types B et C :
NOTE Pour de plus amples informations sur la structure des types d’appareils, voir EN 1749:2020.
a) utilisant un ou plusieurs combustibles gazeux appartenant aux trois familles de gaz et aux pressions indiquées dans l’EN 437:2021 ;
b) dont la température de l’eau ne dépasse pas 105 °C en fonctionnement normal ;
c) dont la pression maximale de service dans le circuit d’eau ne dépasse pas 6 bar ;
d) pouvant condenser dans certaines circonstances ;
e) déclarées dans la notice d’installation comme étant « chaudière à condensation » ou « chaudière à basse température » ou « chaudière standard » ou « autre chaudière ». En l’absence d’information, la chaudière doit être considérée comme une « chaudière standard » ou une « autre chaudière » ;
f) destinées à être installées dans un bâtiment ou à un emplacement partiellement protégé ;
g) destinées à produire aussi instantanément de l’eau chaude ou capables de la stocker, sous forme monobloc.
Le présent document s’applique aux chaudières à circuit d’eau fermé ou ouvert.
NOTE La présente norme et les normes spécifiques (voir Parties 2) fournissent des exigences relatives aux chaudières dont la construction est connue. Pour les chaudières de construction différente susceptibles de ne pas être couvertes par la présente norme ou une norme spécifique, le risque associé à cette construction différente doit être évalué.
L’Article 11 donne un exemple de méthodologie d’évaluation basée sur l’évaluation des risques.
Le présent document ne s’applique pas aux appareils destinés à être raccordés au réseau de gaz lorsque la qualité du gaz distribué peut varier de façon importante pendant la durée de vie de l’appareil (voir Annexe AB).
Le présent document ne couvre pas toutes les exigences pour :
aa) les appareils d’une puissance supérieure à 1 000 kW ;
ab) les appareils conçus et construits pour brûler un gaz contenant du monoxyde de carbone ou d’autres composants toxiques ;
ac) les appareils équipés d’un dispositif de chauffage d’appoint.
Plinski kotli za ogrevanje - 1. del: Splošne zahteve in preskusi
Ta evropski standard določa splošne zahteve in preskusne metode ter klasifikacijo, označevanje in energetsko označevanje plinskih kotlov za centralno ogrevanje z nameščenimi atmosferskimi gorilniki, atmosferskimi gorilniki z ventilatorjem ali gorilniki s popolnim vnaprejšnjim mešanjem (v nadaljevanju: »kotli«).
Ta evropski standard je treba uporabljati v povezavi s posebnimi 2. deli (del 2-1 in naslednji deli).
Ta evropski standard se uporablja za kotle tipov B in C:
OPOMBA: Za dodatne informacije o tipih kotlov glej standard CEN/TR 1749:2014 [1].
a) ki uporabljajo enega ali več gorljivih plinov iz treh družin plinov pri tlakih, navedenih v standardu EN 437;
b) pri katerih temperatura vode pri običajnem delovanju ne presega 105 °C;
c) pri katerih najvišji obratovalni tlak v vodnem omrežju ne presega 6 barov;
d) ki lahko pod določenimi pogoji povzročijo kondenzacijo;
e) ki so v navodilih za namestitev deklarirani kot »kondenzacijski kotli« ali »nizkotemperaturni kotli« ali »standardni kotli« ali »drugi kotli«; Če ni navedene deklaracije, se kotel šteje za »standardni kotel« in »drug kotel«.
OPOMBA: Direktiva o okoljsko primerni zasnovi opredeljuje »druge kotle«, »nizkotemperaturne kotle« in »kondenzacijske kotle«. OPOMBA: Direktiva o učinkovitosti kotlov opredeljuje »standardne kotle«, »nizkotemperaturne kotle« in »kondenzacijske kotle«. Glede na uporabljeno zakonodajo je kotel lahko »standardni kotel« in »drug kotel«.
f) ki so namenjeni vgradnji v zgradbi ali delno zaščitenem prostoru;
g) ki so namenjeni ogrevanju vode po načelu pretočnosti ali načelu shranjevanja.
Ta evropski standard se uporablja za kotle za zaprte ali odprte vodne sisteme.
OPOMBA: Ta splošni standard in posebni standardi (glej 2. del) določajo zahteve za kotle z znanimi konstrukcijami. V zvezi s kotli z drugačnimi konstrukcijami, ki morda niso v celoti zajeti v tem standardu ali posebnem standardu, je treba oceniti tveganje, povezano z drugačno konstrukcijo.
Primer metodologije ocenjevanja, ki temelji na oceni tveganja, je naveden v točki 11.
Ta evropski standard ni namenjen obravnavi aparatov za povezavo s plinskimi omrežji, v katerih bo kakovost distribuiranega plina med življenjsko dobo aparata verjetno znatno nihala (glej dodatek EE).
Ta evropski standard ni namenjen obravnavi aparatov, zasnovanih in izdelanih za zgorevanje plina, ki vsebuje strupene sestavine.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-april-2022
Nadomešča:
SIST EN 15502-1:2012+A1:2015
Plinski kotli za ogrevanje - 1. del: Splošne zahteve in preskusi
Gas-fired heating boilers - Part 1: General requirements and tests
Heizkessel fur gasförmige Brennstoffe - Teil 1: Allgemeine Anforderungen und
Prüfungen
Chaudières de chauffage central utilisant les combustibles gazeux - Partie 1: Exigences
générales et essais
Ta slovenski standard je istoveten z: EN 15502-1:2021
ICS:
27.060.30 Grelniki vode in prenosniki Boilers and heat exchangers
toplote
91.140.10 Sistemi centralnega Central heating systems
ogrevanja
97.100.20 Plinski grelniki Gas heaters
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN 15502-1
EUROPEAN STANDARD
NORME EUROPÉENNE
November 2021
EUROPÄISCHE NORM
ICS 27.060.30; 91.140.10 Supersedes EN 15502-1:2012+A1:2015
English Version
Gas-fired heating boilers - Part 1: General requirements
and tests
Chaudières de chauffage central utilisant les Heizkessel für gasförmige Brennstoffe - Teil 1:
combustibles gazeux - Partie 1: Exigences générales et Allgemeine Anforderungen und Prüfungen
essais
This European Standard was approved by CEN on 25 July 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 15502-1:2021 E
worldwide for CEN national Members.
Contents Page
European foreword . 9
Introduction . 11
1 Scope . 12
2 Normative references . 13
3 Terms, definitions and symbols. 15
4 Classification . 36
4.1 Gases and categories . 36
4.2 Mode of air supply and evacuation of the combustion products . 36
4.3 Maximum water-side operating pressure . 36
5 Construction . 36
5.1 General . 36
5.1.1 General requirements . 36
5.1.2 General verfication . 37
5.2 Conversion to different gases . 37
5.3 Materials . 37
5.3.1 General . 37
5.3.2 Materials and thicknesses of walls or tubes with water side operating pressure for boilers
of pressure class-3 . 38
5.3.3 Domestic water connections . 39
5.3.4 Thermal Insulation . 39
5.3.5 Materials in contact with water for human consumption . 39
5.3.6 Durability against corrosion of metallic combustion product circuits . 40
5.4 Method of construction . 41
5.4.1 Design . 41
5.4.2 Checking the state of operation . 42
5.4.3 Use and servicing . 42
5.4.4 Connections to the gas and water pipes . 43
5.4.5 Soundness . 43
5.4.6 Supply of combustion air and evacuation of the combustion products . 44
5.4.7 Dampers . 44
5.4.8 Air proving . 44
5.4.9 Gas/air ratio controls . 45
5.4.10 Fan . 46
5.4.11 Drainage . 46
5.4.12 Operational safety in the event of failure of the auxiliary energy . 46
5.4.13 Special provision for Low Temperature Boilers and Condensing Boilers . 46
5.5 Burners . 47
5.6 Pressure test points . 48
5.7 Requirements for the application of control and safety devices . 48
5.7.1 General. 48
5.7.2 Adjusters and range-rating devices . 48
5.7.3 Gas circuit . 49
5.7.4 Gas pressure regulator . 50
5.7.5 Ignition devices. 51
5.7.6 Flame supervision devices . 51
5.7.7 Gas/air ratio control tubes . 52
5.7.8 Thermostats and water flow temperature limiting devices . 52
5.7.9 Remote control . 53
5.7.10 Expansion vessel and pressure gauge . 54
5.7.11 Protection against frost for boilers intended to be installed in a partially protected place
5.7.12 Adjusting, control and safety devices for the domestic hot water circuit . 55
6 Electrical and electromagnetic safety . 55
7 Controls . 55
7.1 General . 55
7.2 Detailed specifications . 56
7.2.1 Control and safety devices . 56
7.2.2 Valves used in boilers . 56
7.2.3 Not relevant aspects for controls tested in combination with the boiler . 56
7.2.4 Relevant aspects for controls tested in combination with the boiler . 57
7.3 Thermostats and flow temperature limiting devices . 57
7.3.1 General. 57
7.3.2 Construction requirements . 58
7.3.3 Performance . 59
8 Operational requirements . 61
8.1 General . 61
8.1.1 Characteristics of the reference and limit gases . 61
8.1.2 General test conditions . 62
8.2 Soundness . 66
8.2.1 Soundness of the gas circuit . 66
8.2.2 Soundness of the combustion circuit . 67
8.2.3 Soundness of the water circuit . 67
8.2.4 Soundness of the domestic water circuit . 68
8.3 Hydraulic resistance . 68
8.3.1 Requirements . 68
8.3.2 Test conditions . 68
8.4 Heat inputs and heat output . 69
8.4.1 Determination of the nominal heat input or the maximum and minimum heat input 69
8.4.2 Adjustment of the heat input by the downstream gas pressure . 71
8.4.3 Ignition rate . 71
8.4.4 Nominal output . 71
8.4.5 Verification of the nominal condensing output . 71
8.4.6 Nominal domestic hot water heat input . 72
8.4.7 Water pressure to obtain the nominal heat input for instantaneous combination boilers
8.4.8 Obtaining the domestic hot water temperature for instantaneous combination boilers
8.4.9 Heating-up time of the domestic hot water . 73
8.5 Limiting temperatures. 73
8.5.1 General . 73
8.5.2 Limiting temperatures of the adjusting, control and safety devices . 73
8.5.3 Limiting temperatures of the side walls, the front and the top . 74
8.5.4 Limiting temperature of the test panels and the floor . 74
8.6 Ignition, cross lighting, flame stability . 75
8.6.1 General . 75
8.6.2 Limit conditions . 75
8.6.3 Special flue conditions . 76
8.6.4 Reduction of the gas rate of the ignition burner . 77
8.7 Reduction of the gas pressure . 77
8.7.1 Requirements . 77
8.7.2 Test conditions . 77
8.8 Defective closure of the gas valve immediately upstream of the main burner . 77
8.8.1 Requirements . 77
8.8.2 Test conditions . 78
8.9 Pre-purge . 78
8.10 Functioning of a permanent ignition burner when the fan stops during the standby time
8.10.1 Requirements . 78
8.10.2 Test conditions . 78
8.11 Adjustment, control and safety devices . 78
8.11.1 Requirement . 78
8.11.2 Test method for determining the operating temperature range . 78
8.11.3 Combination Boilers . 79
8.11.4 Control devices . 82
8.11.5 Ignition devices. 82
8.11.6 Flame supervision device . 84
8.11.7 Gas pressure regulator . 87
8.11.8 Thermostats and flow temperature limiting devices . 88
8.12 Carbon monoxide . 90
8.12.1 General. 90
8.12.2 Limit conditions. 92
8.12.3 Special conditions . 92
8.12.4 Sooting . 93
8.12.5 Condensate discharge blockage test . 94
8.13 NO . 94
x
8.13.1 Requirement . 94
8.13.2 Test methods . 95
8.13.3 Calculation of emissions of NO in mg/kWh based on GCV . 97
X
8.14 Special provisions for boilers intended to be installed in a partially protected place98
8.14.1 Frost protection system for boilers intended to be installed in a partially protected place
8.14.2 Protection against the ingress of rain . 98
8.15 Formation of condensate . 98
8.15.1 Requirements . 98
8.15.2 Test conditions . 98
8.16 Temperature of combustion products . 99
8.16.1 Requirements . 99
8.16.2 Test conditions . 99
8.17 Sound power level L . 99
WA
9 Useful efficiencies . 99
9.1 General . 99
9.1.1 Correction of measured efficiency to reference conditions . 99
9.1.2 Use of the general test conditions . 100
9.2 Useful efficiency at the nominal heat input. 100
9.2.1 Requirements . 100
9.2.2 Tests . 100
9.3 Useful efficiency at part load . 102
9.3.1 Requirements . 102
9.3.2 Tests . 102
9.4 Heat output, Seasonal energy efficiency and energy consumption . 109
9.4.1 Rated heat output (P and P ) . 109
rated 4
9.4.2 Useful heat output at 30% of rated heat output and low-temperature regime (P )109
9.4.3 Useful efficiency (GCV) at rated heat output and high-temperature regime (η ) 109
9.4.4 Useful efficiency (GCV) at 30% of rated heat output and low-temperature regime (η )
9.4.5 Ignition burner power consumption (GCV) (P ) . 110
ign
9.4.6 Calculation of the seasonal space heating energy efficiency (η ) . 110
s
9.4.7 Calculation of the annual energy consumption for space heating (Q ) (GCV) . 112
HE
9.4.8 Water heating energy efficiency and energy consumption of combination boilers for water
heating mode. 112
10 Electric auxiliary energy . 113
10.1 Auxiliary energy consumption . 113
10.1.1 General . 113
10.1.2 System boundaries . 113
10.1.3 Auxiliary energy at nominal heat input . 113
10.1.4 Auxiliary energy at part load . 114
10.1.5 Auxiliary energy at stand-by . 114
10.2 Auxiliary electricity consumption measurements required for eco-design and labelling
regulations . 114
10.2.1 General . 114
10.2.2 System boundaries . 114
10.2.3 Auxiliary electricity consumption [kW] at nominal heat input . 115
10.2.4 Auxiliary electricity consumption at part load [kW] . 115
10.2.5 Auxiliary electricity consumption at stand by [kW] . 115
11 Risk assessment. 115
12 Marking and instructions . 116
12.1 Boiler marking . 116
12.1.1 Data plate . 116
12.1.2 Markings related to the state of adjustment . 117
12.1.3 Packaging . 117
12.1.4 Warnings notices on the boiler and the packaging . 117
12.1.5 Other information . 118
12.2 Instructions . 119
12.2.1 Instructions for installation . 119
12.2.2 Instructions for use and servicing . 124
12.2.3 Conversion instructions . 124
12.3 Presentation . 125
Annex A (normative) Properties of carbon and stainless steels . 133
Annex B (normative) Minimum requirements for cast iron . 134
Annex C (normative) Parts in aluminium and aluminium alloys . 135
Annex D (normative) Parts in copper or copper alloys . 136
Annex E (normative) Minimum thicknesses for rolled parts . 137
Annex F (normative) Nominal minimum thicknesses of boiler sections of cast materials under
water pressure . 138
Annex G (normative) Parameters for welded joints and welding processes . 139
Annex H (informative) Examples of the composition of the gas circuit according to 5.7.3.2144
Annex I (informative) Compilation of the test conditions for the various gas families . 153
Annex J (normative) Calculation of conversions of NOx . 155
Annex K (informative) Example of calculation of the weighting factors NOx . 157
Annex L (informative) Practical method of calibrating the test rig to enable the heat loss Dp to be
determined . 159
Annex M (informative) Means of determining the ignition time at full rate . 160
Annex N (informative) Determination of the heat losses from the test rig of the indirect method
and the contributions of the circulating pump of the test rig . 161
Annex O (informative) Example of a risk assessment method. 162
Annex P (informative) Examples of risk assessment with a method described in Annex O165
Annex Q (informative) Realisation of a protective measure. 170
Annex R (informative) Overall classification of a basic risk . 172
Annex S (informative) Not exhaustive list of classification examples . 175
Annex T (normative) Correction for the determined efficiency in the low water temperature test
of low temperature boilers (LTB) and condensing boilers (CB) . 178
Annex U (normative) Use of test gases . 180
Annex V (informative) Alternative method for heat output as enthalpy difference . 181
Annex AA (informative) Product Information related to Eco-design Regulation and Labelling
Regulation . 184
Annex AB (informative) Variations in gas quality . 188
Annex AC (normative) Non-exhaustive list of materials used in contact with drinking water 193
Annex ZA (informative) Left empty on purpose . 195
Annex ZB (informative) Clauses of this European Standard addressing the methods for the
verification of the efficiency of the EU Directive 92/42/EEC, relating to the efficiency of new hot
boilers with an output of 4 – 400 kW . 196
Annex ZC (informative) Relationship between this European Standard and the ecodesign
requirements of Commission Regulation (EU) No 813/2013 L 239/136 aimed to be covered 197
Annex ZD (informative) Relationship between this European Standard and the energy labelling
requirements of Commission Delegated Regulation (EU) No 811/2013 L 239/1 aimed to be
covered . 200
Annex ZE (informative) Relationship between this European Standard and the essential
requirements of Regulation (EU) 2016/426 of the European Parliament and of the Council of 9
March 2016 on appliances burning gaseous fuels and repealing Directive 2009/142/EC aimed to
be covered . 203
Bibliography . 213
European foreword
This document (EN 15502-1:2021) has been prepared by Technical Committee CEN/TC 109 “Central
heating boilers using gaseous fuels”, the secretariat of which is held by NEN.
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 May 2022, and conflicting national standards shall be
withdrawn at the latest by May 2022.
This document supersedes EN 15502-1:2012+A1:2015.
The main technical changes compared to EN 15502-1:2012+A1:2015 are the following:
a) Technical changes related to ecodesign and energy labelling for appliances <= 400 kW:
1) Deletion of the requirements that can be found in the legislation itself.
2) Modification of the Annexes ZC and ZD
b) New or generally reworded requirements:
1) Separation between requirements and test methods in to different clauses;
2) Moving additional common parts from EN 15502-2-1:2012+A1:2016 and/or EN 15502-2-
2:2014 to this standard (for example all definitions used in the parts 2 are moved to part 1);
3) Definitions added for Instructions for installation, Instructions for use and servicing, and
Technical documentation and consequently applied thoughout the document;
4) Improved wording of definitions related to the air supply and combustion products circuit;
5) Improved the references of the annexes Z. The annex Z referring to the GAD has been removed
and an annex Z referring to the GAR has been inserted;
6) Only "instructions for installation" and "instructions for use and servicing" are defined.
Therefore these are the only instructions to be used in this standard;
7) Improved definitions 'ducts / circuits';
8) Definition weighted value of the NOx concentration added. With regard to Ecodesign, it is
clarified that the emissions declared are the emissions when using the references gases.
c) Limitation of the scope compared to the standards superseded by the EN 15502 series (that were
cited in the OJEU under the GAD):
1) Types B and B appliances, as covered in EN 297:1994 /A4:2004 are not covered by this
14 4
standard as there seems to be a limited market for these appliances due to the introduction of
the Ecodesign Directive that only has an exemption for B appliances.
NOTE B and B are non condensing appliances;
14 4
2) This document does not cover all the requirements for appliances designed and constructed to
burn gas containing toxic components. In the past it was always considered that the gases were
not toxic, however this was never clearly indicated in the scope. In fact this is not a change of
scope, but a clarification of the scope;
3) This document is not intended to cover appliances intended for connection to gas grids where
the quality of the distributed gas is likely to vary to a large extent over the lifetime of the
appliance (see Annex AB). In the past no big variation in gas quality occurred. Due to the EASEE-
gas CBP wide variations of gas quality are considered. As these were never covered in this
standard, the scope is modified to make clear that these variations are not covered. In fact this is
not a change of scope, but a clarification of the scope.
4) This document does not cover all the requirements for appliances above 1000 kW. In fact this is
not a change of scope, but a clarification of the scope;
5) This document does not cover all the requirements for appliances having a supplementary
heater. In fact this is not a change of scope, but a clarification of the scope as these appliances
were never included in the past, however due to the Ecodesign Regulation it has become
necessary to mention this more explicitely;
EN 15502 consists of the following parts under the general title “Gas-fired heating boilers":
— Part 1: General requirements and tests (this standard);
— Part 2-1: Specific standard for type C appliances and type B2, B3 and B5 appliances of a nominal heat
input not exceeding 1 000 kW;
—
Part 2-2: Specific standard for type B1 appliances.
This document is to be used in conjunction with the specific Parts 2.
This document has been prepared under mandates M89/6 and M066, given to CEN by the European
Commission and the European Free Trade Association, and supports essential requirements as meant in
article 3 of EU Directive 2009/142/EC, relating to appliances burning gaseous fuels and the verification
methods valid for production and measurements, as meant in article 5.2 of EU Directive 92/42/EEC,
relating to the efficiency requirements for new hot water boilers fired with liquid or gaseous fuels, with
an output of 4 – 400 kW.
This document has been prepared under the mandates M/534 and M/535, given to CEN by the European
Commission and the European Free Trade Association to provide a means of conforming to:
— requirements of Commission Regulation (EC) No 813/2013 of 2 August 2013 implementing Directive
2009/125/EC of the European Parliament and of the Council with regard to ecodesign requirements
for space heaters and combination heaters;
— requirements of Commission Delegated Regulation (EC) No 811/2013 of 18 February 2013
supplementing Directive 2010/30/EC of the European Parliament and of the Council with regard to
energy labelling of space heaters, combination heaters, packages of space heater, temperature
control and solar device and packages of combination heater, temperature control and solar device.
For relationship with EU Directive(s) and Commission Regulations, see informative Annexes ZB, ZC and
ZD, ZE which are integral parts of this document.
Any feedback and questions on this document should be directed to the users’ national standards body.
A complete listing of these bodies can be found on the CEN website.
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 basic function of gas-fired heating boiler is to generate heat by direct heat transfer in a heat
exchanger, from the combustion gasses to the water.
The boiler can include in one design more than one function. It can include for example:
— a sanitary hot water function;
— a function to supply the combustion air from the outside/open air;
— a function to dispose the combustion products to the outside/open air.
The boiler design can be supplied to the market in more than one part. If the boiler is supplied to the
market in multiple parts, the boiler is the assembly of various parts according to the instructions for
installation.
Boilers can be designed to be connected to specific parts of a building. Connection to a chimney and the
means of combustion air supply is particularly relevant.
This document is a first part of a series of standards that will describe the special requirements for
specific appliance types of the boiler. This European Standard contains the common requirements that
are applicable for the majority of the appliance types of the boiler.
Matters related to quality assurance systems, tests during production, and certificates of conformity of
auxiliary devices are not dealt with in this series of European Standards.
1 52BScope
This document specifies the common requirements and test methods, as well as the classification,
marking and energy labelling of gas-fired central heating boilers that are fitted with atmospheric burners,
fan assisted atmospheric burners or fully premixed burners, and are hereafter referred to as “boilers”.
This document is to be used in conjunction with the specific Parts 2 (Part 2-1, Part 2-2 and following
ones).
This document applies to boilers of types B and C:
NOTE For further background information on appliance types see EN 1749:2020.
a) that use one or more combustible gases of the three gas families at the pressures stated in EN
437:2021;
b) where the temperature of the water does not exceed 105 °C during normal operation;
c) where the maximum operating pressure in the water circuit does not exceed 6 bar;
d) which can give rise to condensation under certain circumstances;
e) which are declared in the instructions for installation to be either a "condensing" boiler or a "low
temperature boiler" or a "standard boiler" or an "other boiler". If no declaration is given the boiler is
to be considered both a "standard boiler" and an "other boiler";
f) which are intended to be installed inside a building or in a partially protected place;
g) which are intended to produce also hot water either by the instantaneous or storage principle as a
single unit.
This document applies to boilers designed for sealed water systems or for open water systems.
NOTE This general standard and the specific standards (see Part 2) provide requirements for boilers with known
constructions. For boilers with any alternative constructions, which might not fully be covered by this standard or a specific
standard, the risk associated with this alternative construction will need to be assessed.
An example of an assessment methodology, based upon risk assessment, is given in Clause 11.
This document is not intended to cover appliances intended for connection to gas grids where the quality
of the distributed gas is likely to vary to a large extent over the lifetime of the appliance (see Annex AB).
This document does not cover all the requirements for :
aa) appliances above 1000 kW;
ab) appliances designed and constructed to burn gas containing carbon monoxide or other toxic
components;
ac) appliance having a supplementary heater.
2 53BNormative 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 88-1:2011+A1:2016, Pressure regulators and associated safety devices for gas appliances - Part 1:
Pressure regulators for inlet pressures up to and including 50 kPa
EN 125:2010+A1:2015, Flame supervision devices for gas burning appliances - Thermoelectric flame
supervision devices
EN 126:2012, Multifunctional cont
...
Frequently Asked Questions
EN 15502-1:2021 is a standard published by the European Committee for Standardization (CEN). Its full title is "Gas-fired heating boilers - Part 1: General requirements and tests". This standard covers: This European Standard specifies the common requirements and test methods, as well as the classification, marking and energy labelling of gas-fired central heating boilers that are fitted with atmospheric burners, fan assisted atmospheric burners or fully premixed burners, and are hereafter referred to as “boilers”. This European Standard is to be used in conjunction with the specific Parts 2 (Part 2-1 and following ones). This European Standard applies to boilers of types B and C. NOTE For further background information on appliance types see CEN/TR 1749:2014 [1]. a) that use one or more combustible gases of the three gas families at the pressures stated in EN 437; b) where the temperature of the water is below or above 105 °C during normal operation; c) where the maximum operating pressure in the water circuit does not exceed 6 bar; d) which can give rise to condensation under certain circumstances; e) which are declared in the instructions for installation to be either a "condensing" boiler or a "low temperature boiler" or a "standard boiler" or an "other boiler". If no declaration is given the boiler is to be considered both a "standard boiler" and an "other boiler"; NOTE The Ecodesign Directive defines "other boilers", "low temperature boilers" and "condensing boilers". The Boiler Efficiency Directive defines "standard boilers", "low temperature boilers" and "condensing boilers". Depending on the legislation applied, a boiler can be both "a standard boiler" and an "other boiler"." f) which are intended to be installed inside a building or in a partially protected place; g) which are intended to produce also hot water either by the instantaneous or storage principle as a single unit. This European Standard applies to boilers designed for sealed water systems or for open water systems. NOTE This general standard and the specific standards (see Part 2) provide requirements for boilers with known constructions. For boilers with any alternative constructions, which might not fully be covered by this standard or a specific standard, the risk associated with this alternative construction will need to be assessed. An example of an assessment methodology, based upon risk assessment, is given in Clause 11. This European Standard is not intended to cover appliances intended for connection to gas grids where the quality of the distributed gas is likely to vary to a large extent over the lifetime of the appliance (see Annex EE). This European Standard is not intended to cover appliances designed and constructed to burn gas containing toxic components.
This European Standard specifies the common requirements and test methods, as well as the classification, marking and energy labelling of gas-fired central heating boilers that are fitted with atmospheric burners, fan assisted atmospheric burners or fully premixed burners, and are hereafter referred to as “boilers”. This European Standard is to be used in conjunction with the specific Parts 2 (Part 2-1 and following ones). This European Standard applies to boilers of types B and C. NOTE For further background information on appliance types see CEN/TR 1749:2014 [1]. a) that use one or more combustible gases of the three gas families at the pressures stated in EN 437; b) where the temperature of the water is below or above 105 °C during normal operation; c) where the maximum operating pressure in the water circuit does not exceed 6 bar; d) which can give rise to condensation under certain circumstances; e) which are declared in the instructions for installation to be either a "condensing" boiler or a "low temperature boiler" or a "standard boiler" or an "other boiler". If no declaration is given the boiler is to be considered both a "standard boiler" and an "other boiler"; NOTE The Ecodesign Directive defines "other boilers", "low temperature boilers" and "condensing boilers". The Boiler Efficiency Directive defines "standard boilers", "low temperature boilers" and "condensing boilers". Depending on the legislation applied, a boiler can be both "a standard boiler" and an "other boiler"." f) which are intended to be installed inside a building or in a partially protected place; g) which are intended to produce also hot water either by the instantaneous or storage principle as a single unit. This European Standard applies to boilers designed for sealed water systems or for open water systems. NOTE This general standard and the specific standards (see Part 2) provide requirements for boilers with known constructions. For boilers with any alternative constructions, which might not fully be covered by this standard or a specific standard, the risk associated with this alternative construction will need to be assessed. An example of an assessment methodology, based upon risk assessment, is given in Clause 11. This European Standard is not intended to cover appliances intended for connection to gas grids where the quality of the distributed gas is likely to vary to a large extent over the lifetime of the appliance (see Annex EE). This European Standard is not intended to cover appliances designed and constructed to burn gas containing toxic components.
EN 15502-1:2021 is classified under the following ICS (International Classification for Standards) categories: 27.060.30 - Boilers and heat exchangers; 91.140.10 - Central heating systems. The ICS classification helps identify the subject area and facilitates finding related standards.
EN 15502-1:2021 has the following relationships with other standards: It is inter standard links to EN 15502-1:2012+A1:2015, EN 15502-1:2021+A1:2023, EN 15502-1:2021/AC:2022. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
EN 15502-1:2021 is associated with the following European legislation: EU Directives/Regulations: 2016/426, 811/2013, 813/2013; Standardization Mandates: M/066, M/534, M/535, M/BC/CEN/89/6. When a standard is cited in the Official Journal of the European Union, products manufactured in conformity with it benefit from a presumption of conformity with the essential requirements of the corresponding EU directive or regulation.
You can purchase EN 15502-1:2021 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of CEN standards.
EN 15502-1:2021は、ガス焚き暖房ボイラーに関する包括的な基準であり、エネルギー効率と安全性の向上を目指しています。この標準の適用範囲は、アトモスフェリックバーナー、ファンアシストアトモスフェリックバーナー、または完全に混合されたバーナーを装備したガス焚き中央暖房ボイラーに関する一般的な要件と試験方法を定めています。これにより、ボイラーの分類、マーキング、エネルギーラベリングが統一されています。 この標準は、ボイラーの設計が密閉水系统または開放水系统を対象としているため、さまざまなタイプのボイラーに適用可能です。特に、圧力が6バールを超えず、通常の運転中の水温が105°C以下またはそれ以上となるボイラーに関する要求を明確に示しています。また、結露を引き起こす可能性がある機器についても取り扱っており、ボイラーが「凝縮型ボイラー」または「低温ボイラー」として指定される場合の要件も明記されています。 強みとしては、EN 15502-1:2021は、ボイラーとその設計に関するリスク評価手法を提供しており、特定の構造に関する要件を確立している点です。これは、特定の基準や類似の構造に完全にカバーされない代替構造を考慮する際に重要です。特に、リスクアセスメントに基づく評価方法論が、第11条において示されています。 この標準の関連性は、家屋内でのボイラー設置に関する明確なガイドラインを提供し、ユーザーに対して安全で効率的な暖房ソリューションを保証するところにあります。さらに、特定の法律に基づくボイラーの種類の定義が含まれ、多様な市場ニーズにも対応しています。これにより、業界全体の品質向上と持続可能なエネルギー使用を促進する重要な役割を果たしています。
La norme EN 15502-1:2021, intitulée "Chaudières à gaz - Partie 1 : Exigences générales et essais," définit des exigences communes et des méthodes d'essai pour les chaudières de chauffage central à gaz. Cette norme européenne est pertinente pour les chaudières équipées de brûleurs atmosphériques, de brûleurs atmosphériques assistés par ventilateur ou de brûleurs entièrement prémélangés, catégorisées comme chaudières de type B et C. L'un des principaux atouts de cette norme est sa portée détaillée qui couvre un large éventail d'appareils fonctionnant avec des gaz combustibles de trois familles, selon les pressions stipulées dans la norme EN 437. De plus, elle établit des critères pour la température de l'eau, s'assurant ainsi que les chaudières puissent fonctionner efficacement à des températures sous ou au-dessus de 105 °C et à une pression maximale de 6 bar. Ce cadre normatif est essentiel pour garantir la sécurité et l'efficacité des chaudières, notamment celles qui peuvent entraîner de la condensation. Un autre point fort est l'instruction claire concernant la déclaration des types de chaudières, qu'il s'agisse de chaudières à condensation, à basse température ou standards. Grâce à la norme, ces distinctions sont non seulement reconnues mais également accompagnées d'exigences précises pour leur installation et leur utilisation. La norme EN 15502-1:2021 se montre particulièrement pertinente à l'ère actuelle, où les enjeux écologiques sont au cœur des préoccupations. En incluant des directives sur le marquage et l'étiquetage énergétique, elle facilite l'adoption de solutions énergétiques plus durables, favorisant ainsi l'efficacité énergétique des chaudières à gaz. Enfin, le fait que cette norme soit conçue pour être utilisée en complément avec les parties spécifiques de la norme (Partie 2 et suivantes) témoigne de son approche systémique et intégrée, garantissant que tous les aspects des chaudières à gaz soient couverts de manière exhaustive. En résumé, la norme EN 15502-1:2021 constitue un cadre solide et pertinent pour la conception, l'évaluation et l'installation de chaudières à gaz, tout en se conformant aux exigences de sécurité et d'efficacité énergétique modernes.
The standard EN 15502-1:2021 serves as a crucial framework for gas-fired heating boilers, specifically targeting the general requirements and tests applicable to these appliances. Its comprehensive scope encompasses boilers that utilize various types of gas burners, including atmospheric burners, fan assisted atmospheric burners, and fully premixed burners. The standard is meticulously designed to apply to boilers classified under types B and C, ensuring that a wide range of heating appliances is covered. One of the significant strengths of this standard is its detailed specification of test methods and requirements, which assist manufacturers in ensuring compliance and safety. The inclusion of expectations related to gas families and pressure ratings, as referenced in EN 437, reinforces the reliability of boiler operation under diverse conditions. Additionally, the standard delineates the thermal performance of boilers, whether they operate below or above 105 °C, and addresses the implications of condensation, marking a critical consideration for efficiency and longevity. The clarity provided in the classification of boilers, including distinctions between "condensing," "low temperature," "standard," and "other boilers," offers essential guidance for manufacturers and consumers alike. This categorization aligns with the Ecodesign Directive and the Boiler Efficiency Directive, promoting eco-friendly practices within the heating industry. Another notable aspect of EN 15502-1:2021 is its emphasis on installation environments, acknowledging that these boilers can be installed inside buildings or in partially protected areas. It also addresses the production of hot water through both instantaneous and storage methods, highlighting the versatility of the appliances covered by this standard. Importantly, the standard recognizes the necessity for a tailored assessment approach for boilers with alternative constructions not fully covered within its provisions, thus supporting innovation while ensuring safety through a risk-assessment methodology. This aspect illustrates the standard's adaptability to evolving technologies. However, EN 15502-1:2021 explicitly excludes appliances meant for variable quality gas grid connections and those designed to combust toxic gas components, ensuring that focus remains on safety and clarity in certification processes. In conclusion, EN 15502-1:2021 stands out as a relevant and robust standard that addresses the essential operational, safety, and environmental considerations for gas-fired heating boilers. Its systematic structure and detailed guidance make it an indispensable resource for stakeholders in the heating industry, paving the way for higher efficiency and increased consumer protection.
Die EN 15502-1:2021 ist eine bedeutende europäische Norm, die umfassende Anforderungen und Prüfmethoden für gasbetriebene Heizkessel festlegt. Sie konzentriert sich auf die allgemeinen Anforderungen sowie die Klassifizierung, Kennzeichnung und Energiekennzeichnung von Heizkesseln, die mit verschiedenen Typen von atmosphärischen Brennern, ventilatorunterstützten atmosphärischen Brennern oder vollständig vorvermischten Brennern ausgestattet sind. Der Anwendungsbereich dieser Norm umfasst Heizkessel des Typs B und C, die mit einem oder mehreren brennbaren Gasen aus den drei Gasfamilien betrieben werden. Diese Norm ist anwendbar auf Systeme, bei denen die Wassertemperatur unter oder über 105 °C liegen kann, sowie auf Heizkessel, die unter bestimmten Umständen zur Kondensation führen können. Die Regelungen zur Deklaration der unterschiedlichen Kesseltypen, wie "kondensierende Heizkessel", "Niedertemperaturkessel" und "Standardkessel", bieten klare Richtlinien zur Einstufung und zum Verständnis der Eigenschaften verschiedener Heizkessel. Ein besonders starkes Merkmal der EN 15502-1:2021 ist die detaillierte Anleitung zur Installation von Heizkesseln, die entweder in geschlossenen oder offenen Wassersystemen eingesetzt werden können. Dies gewährleistet, dass die Norm sowohl für Standard- als auch für alternative Kesselbauarten anwendbar ist, wobei die Sicherheitsbewertung bei alternativen Konstruktionen berücksichtigt wird. Durch die Bereitstellung einer Methodik zur Risikobewertung wird sichergestellt, dass Hersteller und Anwender die Einhaltung der sicherheitsrelevanten Aspekte angemessen prüfen können. Die Relevanz dieser Norm wird weiter durch den klaren Ausschluss von Geräten, die für den Anschluss an Gasnetze bestimmt sind, bei denen die Qualität des verteilten Gases erheblich variieren könnte, unterstrichen. Zudem behandelt die Norm keine Geräte, die dazu bestimmt sind, Gas mit toxischen Komponenten zu verbrennen, was die Sicherheit und Benutzerfreundlichkeit weiter erhöht. Insgesamt ist die EN 15502-1:2021 ein aufschlussreiches Dokument, das die standardisierten Verfahren und Anforderungen an gasbetriebene Heizkessel klar und präzise definiert, sodass sowohl Hersteller als auch Verbraucher über die notwendigen Informationen zur sicheren und effizienten Nutzung von Heizkesseln verfügen.
SIST EN 15502-1:2022는 가스 연료 난방 보일러에 대한 유럽 표준으로, 일반 요구 사항 및 테스트 방법을 제시합니다. 이 표준의 적용 범위는 대기식 버너, 팬 보조 대기식 버너 또는 완전히 미리 혼합된 버너가 장착된 가스 연료 중앙 난방 보일러에 대한 것으로, 보일러의 분류, 표기 및 에너지 라벨링까지 포괄하고 있습니다. 이 표준의 강점 중 하나는 보일러 유형 B와 C에 대한 명확한 정의를 통해 사용자가 다양한 보일러 안전 규정을 이해하고 준수할 수 있도록 돕는다는 점입니다. 또한, 이 표준은 가연성 가스를 사용하는 보일러를 대상으로 하며, 물의 온도 및 최대 작동 압력 조건에 대한 구체적인 요구 사항을 제공합니다. 이러한 요소들은 보일러의 사용성과 안전성을 보장하는 데 중요한 역할을 합니다. EN 15502-1:2021은 특정 설치 및 작동 조건을 수립하여 사용자에게 안전한 보일러 운영을 가능하게 하며, "응축 보일러", "저온 보일러", "표준 보일러" 및 "기타 보일러"에 대한 분류를 명확히 하여 에너지 효율적인 기기 사용을 촉진합니다. 또한, 건물 내부 또는 부분적으로 보호된 장소에 설치되는 보일러에 대한 요구 사항을 규정하여 다양한 설치 환경에 대한 적응력을 강화합니다. 전반적으로 이 표준은 보일러의 안전성과 효율성을 높이는 데 매우 유용하며, 관련 법규와 연계하여 보일러 설계 및 운영에 있어 중요한 지침을 제공합니다. 이러한 점에서 SIST EN 15502-1:2022는 현재의 기술적 요구와 환경적 요건을 충족하는 중요한 문서로 자리잡고 있으며, 보일러 산업의 지속 가능한 발전을 지원하는 필수 표준이라고 할 수 있습니다.
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