SIST EN 15502-1:2012
(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 concerning, in particular the construction, safety, fitness for purpose, and rational use of energy, as well as the classification and marking 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, according to CEN/TR 1749:2009: 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 heat transfer fluid 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 installation instructions to be either a “condensing” boiler or a "low temperature boiler" or a “standard boiler”. If no declaration is given the boiler is to be considered a “standard boiler” f) which are intended to be installed inside a building or in a partially protected place; g) which are intended to produce hot water either by the instantaneous or storage principle, the whole being marketed as a single unit. This European Standard applies to boilers designed for sealed water systems or for open water systems. 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.
Heizkessel fur gasformige Brennstoffe - Teil 1: Allgemeine Anforderungen und Prufungen
Diese Europäische Norm legt die allgemeinen Anforderungen und Prüfmethoden insbesondere für den Bau, die Sicherheit, die Gebrauchstauglichkeit und den Energieeinsatz sowie die Klassifizierung und Kennzeich-nung von Heizkesseln fest, die mit atmosphärischen Brennern mit oder ohne Ventilator oder mit Vormisch-brenner ausgerüstet sind und nachfolgend kurz „Kessel" “ genannt werden.
Die vorliegende Europäische Norm ist in Verbindung mit den Teilen 2 (Teil 2-1 und folgende) anzuwenden.
Die vorliegende Europäische Norm wird für Kessel des Typs B und C nach CEN/TR 1749:2009 angewandt:
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 der Wärme leitenden Flüssigkeit 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 vom Hersteller als Brennwertgeräte, als Niedertemperaturkessel oder als Standardkessel bezeichnet werden. Wenn keine Angabe gemacht wird, wird der Kessel als Standardkessel betrachtet;
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 Warmwasser herzustellen, wobei das Ganze als eine Einheit vertrieben wird.
Diese Europäische Norm ist für Kessel anwendbar, die für geschlossene oder offene Wassersysteme ausgelegt sind.
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.
Diese Europäische Norm ist nicht für Geräte zum Anschluss an Gasversorgungsnetze bestimmt, bei denen sich die Qualität des verteilten Gases wahrscheinlich über die Lebensdauer des Geräts stark erweitert.
Chaudières de chauffage central utilisant les combustibles gazeux - Exigences générales et essais
La présente norme européenne (Norme Générique) spécifie les exigences et les méthodes d’essai communes, en particulier la conception, la sécurité, l’aptitude à la fonction, l’utilisation rationnelle de l’énergie, ainsi que la classification et le marquage concernant les chaudières de chauffage central utilisant les combustibles gazeux et dotées de brûleurs atmosphériques, de brûleurs atmosphériques assistés d’un ventilateur ou de brûleurs à pré-mélange total, ci-après dénommées « chaudières ».
La présente norme européenne est à utiliser conjointement avec la Partie spécifique 2-1 et les suivantes.
La présente norme européenne s’applique aux chaudières de types B et C, conformément au CEN/TR 1749 :
d) utilisant un ou plusieurs combustibles gazeux appartenant aux trois familles de gaz et aux pressions indiquées dans l'EN 437 ;
e) dont la température du fluide caloporteur ne dépasse pas 105 °C en fonctionnement normal ;
f) dont la pression maximale de service dans le circuit d’eau ne dépasse pas 6 bar ;
g) pouvant condenser dans certaines circonstances ;
h) déclarées comme étant des « chaudières à condensation » par le fabricant ;
i) déclarées comme étant des « chaudières à basse température » par le fabricant ;
j) destinées à être installées à un emplacement partiellement protégé ;
k) destinées à produire instantanément de l'eau chaude ou capables de la stocker, l'ensemble étant commercialisé sous forme monobloc.
Pour les utilisations entrant dans le domaine d'application de la Directive 97/23/CE pour les équipements sous pression, des exigences supplémentaires peuvent être nécessaires (par exemple dans des situations où la température admissible maximale dépasse 110 °C, ou lorsque le produit volume par pression maximale admissible est supérieur à 50 bar par litre).
La présente norme européenne s’applique aux chaudières à circuit d’eau fermé ou ouvert.
Plinski kotli za gretje - 1. del: Splošne zahteve in preskusi
Ta evropski standard določa splošne zahteve in preskusne metode, povezane predvsem s konstrukcijo, varnostjo, ustreznostjo namenu in racionalno porabo energije ter klasifikacijo in označevanjem plinskih kotlov za centralno gretje 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 (2-1. del in naslednji deli). Ta evropski standard se uporablja za kotle tipov B in C v skladu s standardom CEN/TR 1749:2009: a) ki uporabljajo enega ali več gorljivih plinov iz treh družin plinov pri tlakih, navedenih v standardu EN 437; b) kadar temperatura tekočine za prenos toplote ne presega 105 °C med običajnim delovanjem; c) kadar 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«. Če ni navedene deklaracije, se kotel šteje za »standardni kotel«, f) ki je namenjen vgradnji v zgradbi ali delno zaščitenem prostoru; g) ki je namenjen ogrevanju vode po takojšnjem principu ali principu shranjevanja, pri čemer se trži kot ena enota. Ta evropski standard se uporablja za kotle za zaprte vodne sisteme ali odprte vodne sisteme. Ta splošni standard in posebni standardi (glejte 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.
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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Plinski kotli za gretje - 1. del: Splošne zahteve in preskusiHeizkessel fur gasformige Brennstoffe - Teil 1: Allgemeine Anforderungen und PrufungenChaudières de chauffage central utilisant les combustibles gazeux - Exigences générales et essaisGas-fired heating boilers - Part 1: General requirements and tests97.100.20Plinski grelnikiGas heaters91.140.10Sistemi centralnega ogrevanjaCentral heating systemsICS:Ta slovenski standard je istoveten z:EN 15502-1:2012SIST EN 15502-1:2012en,fr,de01-september-2012SIST EN 15502-1:2012SLOVENSKI
STANDARD
SIST EN 15502-1:2012
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 15502-1
July 2012 ICS 27.060.30; 91.140.10 English Version
Gas-fired heating boilers - Part 1: General requirements and tests
Chaudières de chauffage central utilisant les combustibles gazeux - Partie 1: Exigences générales et essais
Heizkessel fur gasförmige Brennstoffe - Teil 1: Allgemeine Anforderungen und Prüfungen This European Standard was approved by CEN on 25 May 2012.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre:
Avenue Marnix 17,
B-1000 Brussels © 2012 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 15502-1:2012: ESIST EN 15502-1:2012
EN 15502-1:2012 (E) 2 Contents Page Foreword . 5Introduction . 61Scope . 72Normative references . 73Terms, definitions and symbols . 93.1Terms and definitions . 93.2Symbols . 194Classification . 194.1Gases and categories . 194.2Mode of air supply and evacuation of the combustion products . 204.3Maximum water-side operating pressure . 205Construction . 205.1General . 205.2Conversion to different gases . 205.3Materials . 215.4Method of construction . 235.5Burners . 275.6Pressure test points . 285.7Requirements for the application of control and safety devices . 286Electrical safety . 357Controls. 357.1General . 357.2Detailed specifications . 357.3Thermostats and water temperature limiting devices . 368Operational requirements . 408.1General . 408.2Soundness . 458.3Hydraulic resistance . 478.4Heat inputs and heat output . 478.5Limiting temperatures . 518.6Ignition, cross lighting, flame stability . 538.7Reduction of the gas pressure . 558.8Defective closure of the gas valve immediately upstream of the main burner . 568.9Pre-purge . 568.10Functioning of a permanent ignition burner when the fan stops during the standby
time . 568.11Adjustment, control and safety devices . 568.12Carbon monoxide. 688.13NOx . 728.14Special provisions for boilers intended to be installed in a partially protected
place . 768.15Formation of condensate . 768.16Temperature of combustion products . 76SIST EN 15502-1:2012
EN 15502-1:2012 (E) 3 9Useful efficiencies . 779.1General . 779.2Useful efficiency at the nominal heat input . 779.3Useful efficiency at part load . 799.4Losses of combination boilers . 8510Electric auxiliary energy . 8810.1General . 8810.2System boundaries. 8810.3Auxiliary energy at nominal heat input . 8810.4Auxiliary energy at part load . 8910.5Auxiliary energy at stand-by . 8911Risk assessment . 8912Marking and instructions . 9012.1Boiler marking . 9012.2Instructions . 9112.3Presentation . 9512.4Supplementary marking and instructions in the case of boilers to be installed in
partially protected places . 95Annex A(informative)
Properties of carbon and stainless steels . 102Annex B(normative)
Minimum requirements for cast iron . 103Annex C(normative)
Parts in aluminium and aluminium alloys. 104Annex D(normative)
Parts in copper or copper alloys . 105Annex E(normative)
Minimum thicknesses for rolled parts. 106Annex F(normative)
Nominal minimum thicknesses of boiler sections of cast materials
under water pressure . 107Annex G(normative)
Parameters for welded joints and welding processes . 108Annex H(informative)
Composition of the gas circuit . 113Annex I(informative)
Compilation of the test conditions for the various gas families . 122Annex J(informative)
Calculation of conversions of NOx . 124Annex K(informative)
Example of calculation of the weighting factors NOx . 125Annex L(informative)
Practical method of calibrating the test rig to enable the heat
loss Dp to be determined . 127Annex M(informative)
Means of determining the ignition time at full rate . 128Annex 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. 129Annex O(informative)
Example of a risk assessment method . 130Annex P(informative)
Examples of risk assessment with a method described in Annex O133Annex Q(informative)
Realisation of a protective measure . 137Annex R(informative)
Overall classification of a basic risk. 139Annex S(informative)
Not exhaustive list of classification examples . 142Annex T(normative)
Correction for the determined efficiency in the low water
temperature test of low temperature boilers (LTB) and condensing
boilers (CB) . 144SIST EN 15502-1:2012
EN 15502-1:2012 (E) 4 Annex U(informative)
Use of test gases . 145Annex V(informative)
Standards intended to be replaced by this standard in
combination with the relevant part 2. 146Annex W(informative)
Alternative Method for the determination of the nominal heat
input or the maximum and minimum heat input (according to 8.4.1)
for appliances using a pneumatic gas/air ratio control system . 147Annex ZA (informative)
Clauses of this European ^tandard addressing essential
requirements or provisions of EU Directive2009/142/EC, "Directive
relating to appliances burning gaseous fuels (codified version)"
(GAD) . 148Annex ZBClauses 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 . 151Bibliography . 152 SIST EN 15502-1:2012
EN 15502-1:2012 (E) 5 Foreword This document (EN 15502-1:2012) 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 January 2013, and conflicting national standards shall be withdrawn at the latest by January 2013. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights. This 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. For relationship with EU Directive(s), see informative Annex ZA and ZB, which are integral parts of this document. Annex V lists which existing standards are intended to be replaced by this standard in combination with the relevant Part 2. The standards listed in Annex V are to be used until the relevant Part 2 cover the types indicated. This European Standard by itself does not replace any European Standard. According to the CEN/CENELEC Internal Regulations, the national standards organisations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. SIST EN 15502-1:2012
EN 15502-1:2012 (E) 6 Introduction A gas-fired heating boiler is an appliance using gas as fuel designed to heat water with the purpose of providing heat to a building (or portion of a building) from one point to multiple rooms using heat emitters such as radiators and convectors to transmit the heat from the water to the room. The boiler may also be used to provide domestic hot water via an indirect hot water storage tank.
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 may include in one design more than one function. It may include for example: a sanitary hot water function; a function to supply the combustion air from the outside of the building; a function to dispose the combustion products to the outside of the building.
The boiler design may 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 installation instructions. Boilers may 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 European Standard was established to deal with aspects related to: a) safety; b) rational use of energy; c) fitness for purpose. This European Standard is a first part of a series of standards that will describe the special requirements for specific boiler types. This European Standard contains the common requirements that are applicable for the majority of the specific boiler types. This European Standard is to be used in conjunction with the specific Part 2. 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.
SIST EN 15502-1:2012
EN 15502-1:2012 (E) 7 1 Scope This European Standard specifies the common requirements and test methods concerning, in particular the construction, safety, fitness for purpose, and rational use of energy, as well as the classification and marking 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, according to CEN/TR 1749:2009:
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 heat transfer fluid 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 installation instructions to be either a “condensing” boiler or a "low temperature boiler" or a “standard boiler”. If no declaration is given the boiler is to be considered a “standard boiler” f) which are intended to be installed inside a building or in a partially protected place; g) which are intended to produce hot water either by the instantaneous or storage principle, the whole being marketed as a single unit. This European Standard applies to boilers designed for sealed water systems or for open water systems. 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. 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 88-1:2011, 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, Flame supervision devices for gas burning appliances — Thermoelectric flame supervision devices EN 126:2012, Multifunctional controls for gas burning appliances EN 161:2011, Automatic shut-off valves for gas burners and gas appliances EN 298:2012, Automatic burner control systems for burners and appliances burning gaseous or liquid fuels SIST EN 15502-1:2012
EN 15502-1:2012 (E) 8 EN 437:2003+A1:2009, Test gases — Test pressures — Appliance categories EN 1057:2006+A1:2010, Copper and copper alloys — Seamless, round copper tubes for water and gas in sanitary and heating applications EN 1092-1:2007, Flanges and their joints —- Circular flanges for pipes, valves, fittings and accessories, PN designated – Part 1: Steel flanges EN 1092-2:1997, Flanges and their joints — Circular flanges for pipes, valves, fittings and accessories, PN designated — Part 2: Cast iron flanges EN 1092-3:2003, Flanges and their joints — Circular flanges for pipes, valves, fittings and accessories, PN designated — Part 3: Copper alloy flanges EN 1092-4:2002, Flanges and their joints — Circular flanges for pipes, valves, fittings and accessories, PN designated — Part 4: Aluminium alloy flanges CR 1404:1994, Determination of emissions from appliances burning gaseous fuels during type-testing CEN/TR 1749:2009, European scheme for the classification of gas appliances according to the method of evacuation of the combustion products (types) EN 10029:2010, Hot-rolled steel plates 3 mm thick or above — Tolerances on dimensions and shape
EN 10226-1:2004, Pipe threads where pressure tight joints are made on the threads — Part 1: Taper external threads and parallel internal threads — Dimensions, tolerances and designation EN 10226-2:2005, Pipe threads where pressure tight joints are made on the threads — Part 2: Taper external threads and taper internal threads — Dimensions, tolerances and designation EN 12067-2:2004, Gas/air ratio controls for gas burners and gas burning appliances — Part 2: Electronic types EN 13203-1:2006, Gas-fired domestic appliances producing hot water — Appliances not exceeding 70 kW heat input and 300 l water storage capacity — Part 1: Assessment of performance of hot water deliveries EN 13611:2007+A2:2011, Safety and control devices for gas burners and gas burning appliances — General requirements EN 14459:2007, Control functions in electronic systems for gas burners and gas burning appliances — Methods for classification and assessment EN 50090 (all parts), Home and Building Electronic Systems (HBES) EN 60335-1:2002, Household and similar electrical appliances — Safety — Part 1: General requirements
(IEC 60335-1:2001, modified) EN 60335-2-102:2006, Household and similar electrical appliances — Safety — Part 2-102: Particular requirements for gas, oil and solid-fuel burning appliances having electrical connections (IEC 60335-2-102:2004, modified) EN 60529:1991, Degrees of protection provided by enclosures (IP code) (IEC 60529:1989) EN 60730-2-9:2010, Automatic electrical controls for household and similar use — Part 2-9: Particular requirements for temperature sensing controls (IEC 60730-2-9:2008, modified) EN ISO 228-1:2003, Pipe threads where pressure-tight joints are not made on the threads — Part 1: Dimensions, tolerances and designation (ISO 228-1:2000) SIST EN 15502-1:2012
EN 15502-1:2012 (E) 9 prEN ISO 2553:2011, Welding and allied processes — Symbolic representation on drawings — Welded, brazed and soldered joints (ISO/DIS 2553:2011) EN ISO 3166-1:2006, Codes for the representation of names of countries and their subdivisions — Part 1: Country codes (ISO 3166-1:2006) EN ISO 4063:2010, Welding and allied processes — Nomenclature of processes and reference numbers
(ISO 4063:2009, Corrected version 2010-03-01) ISO 857-1:1998, Welding and allied processes — Vocabulary — Part 1: Metal welding processes ISO 857-2:2005, Welding and allied processes — Vocabulary — Part 2: Soldering and brazing processes and related terms 3 Terms, definitions and symbols 3.1 Terms and definitions For the purposes of this document, the terms and definitions given in EN 437:2003+A1:2009 and the following apply. 3.1.1 Gas supply 3.1.1.1 aeration adjuster device enabling the primary aeration of a burner to be set to the desired value according to the supply conditions 3.1.1.2 gas circuit assembly of parts of the boiler that carry or contain the combustible gas between the boiler gas inlet connection and the point at which air is admitted 3.1.1.3 gas inlet connection part of the boiler intended to be connected to the gas supply 3.1.1.4 gas rate adjuster component allowing the gas rate of the burner to be brought to a predetermined value according to the supply conditions Note 1 to entry: The action of operating this device is called “adjustment of the gas rate”. 3.1.1.5 injector component that admits gas into the burner 3.1.1.6 putting an adjuster or a control device out of service action intended to put an adjuster or control (rate, pressure, etc.) out of service 3.1.1.7 range-rating device component on the boiler intended to be used by the installer to adjust the nominal heat input of the boiler within the range of maximum and minimum heat inputs stated by the manufacturer, to suit the actual heat requirements of the installation SIST EN 15502-1:2012
EN 15502-1:2012 (E) 10 3.1.1.8 restrictor device (with one or more orifices if any), which is placed in the gas circuit so as to create a pressure drop and thus bring the gas pressure at the burner to a predetermined value for a given supply pressure and a given rate 3.1.1.9 sealing an adjuster or a control arrangements made to make evident any attempt to change its adjustment (e.g. breakage of a device or of a sealing material) Note 1 to entry: A sealed adjuster or control is considered to be non-existent. 3.1.2 Burners 3.1.2.1 alternating ignition burner ignition burner that is extinguished as soon as ignition of the main burner is effected and re-igniting at the main burner flame just before the latter extinguishes 3.1.2.2 automatic ignition system automatic system which ignites the ignition burner or the main burner directly 3.1.2.3 ignition burner burner intended to ignite a main burner 3.1.2.4 ignition device any means (flame, electrical ignition device or other device) used to ignite the gas admitted to the ignition burner or the main burner 3.1.2.5 intermittent ignition burner ignition burner that is ignited before and extinguished at the same time as the main burner 3.1.2.6 interrupted ignition burner ignition burner that operates only during the ignition period 3.1.2.7 main burner burner that is intended to assure the thermal function of the boiler, generally called “the burner” 3.1.2.8 manual ignition device device by means of which the ignition burner is ignited following manual intervention 3.1.2.9 pre-mixed burner burner in which the gas and a quantity of air at least equal to that theoretically necessary for complete combustion are mixed before the flame ports 3.1.2.10 permanent ignition burner ignition burner that operates continuously throughout the whole period that the boiler is in use SIST EN 15502-1:2012
EN 15502-1:2012 (E) 11 3.1.3 Air supply and combustion products circuit 3.1.3.1 combustion circuit circuit from the air inlet to the combustion products outlet of the appliance Note 1 to entry: This will include the combustion chamber and heat exchanger and depending on the type includes the air supply duct, the combustion products evacuation duct, the fitting piece, the connection to the terminal, the inlet terminal, the outlet terminal. 3.1.3.2 air supply circuit means for transporting combustion air to the burner 3.1.3.3 combustion products evacuation duct means for transporting combustion products to the outlet of the appliance or to the terminal 3.1.3.4 damper device placed in the air inlet duct or the combustion products outlet duct to control the volume flow 3.1.4 Adjusting, control and safety devices 3.1.4.1 adjustable control thermostat control thermostat that permits the user to obtain setting temperatures between a minimum and a maximum value 3.1.4.2 adjustable pressure regulator pressure regulator fitted with a means of adjusting the downstream pressure Note 1 to entry: This means is considered as an “adjusting device”. 3.1.4.3 automatic burner control system system that comprises a programming unit and all the elements of a flame detector Note 1 to entry: All the functions of an automatic burner control system may be assembled in one or more housings. 3.1.4.4 automatic valve device that automati
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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Plinski kotli za gretje - 1. del: Splošne zahteve in preskusiHeizkessel fur gasformige Brennstoffe - Teil 1: Allgemeine Anforderungen und PrufungenChaudières de chauffage central utilisant les combustibles gazeux - Exigences générales et essaisGas-fired heating boilers - Part 1: General requirements and tests97.100.20Plinski grelnikiGas heaters91.140.10Sistemi centralnega ogrevanjaCentral heating systemsICS:Ta slovenski standard je istoveten z:FprEN 15502-1kSIST FprEN 15502-1:2012en,fr,de01-januar-2012kSIST FprEN 15502-1:2012SLOVENSKI
STANDARD
kSIST FprEN 15502-1:2012
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
FINAL DRAFT
FprEN 15502-1
November 2011 ICS 27.060.30; 91.140.10 English Version
Gas-fired heating boilers - Part 1: General requirements and tests
Chaudières de chauffage central utilisant les combustibles gazeux - Exigences générales et essais
Heizkessel fur gasformige Brennstoffe - Teil 1: Allgemeine Anforderungen und Prufungen This draft European Standard is submitted to CEN members for second unique acceptance procedure. It has been drawn up by the Technical Committee CEN/TC 109.
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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland 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
Management Centre:
Avenue Marnix 17,
B-1000 Brussels © 2011 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. FprEN 15502-1:2011: EkSIST FprEN 15502-1:2012
FprEN 15502-1:2011 (E) 2 Contents Page Foreword . 5Introduction . 61Scope . 72Normative references . 73Terms, definitions and symbols . 93.1Terms and definitions . 93.2Symbols . 194Classification . 194.1Gases and categories . 194.2Mode of air supply and evacuation of the combustion products . 204.3Maximum water-side operating pressure . 205Construction . 205.1General . 205.2Conversion to different gases . 205.3Materials . 215.4Method of construction . 235.5Burners . 275.6Pressure test points . 285.7Requirements for the application of control and safety devices . 286Electrical safety . 357Controls. 357.1General . 357.2Detailed specifications . 357.3Thermostats and water temperature limiting devices . 368Operational requirements . 408.1General . 408.2Soundness . 458.3Hydraulic resistance . 478.4Heat inputs and heat output . 478.5Limiting temperatures . 518.6Ignition, cross lighting, flame stability . 538.7Reduction of the gas pressure . 558.8Defective closure of the gas valve immediately upstream of the main burner . 568.9Pre-purge . 568.10Functioning of a permanent ignition burner when the fan stops during the standby time . 568.11Adjustment, control and safety devices . 568.12Carbon monoxide. 688.13NOx . 728.14Special provisions for boilers intended to be installed in a partially protected
place . 768.15Formation of condensate . 768.16Temperature of combustion products . 769Useful efficiencies . 77kSIST FprEN 15502-1:2012
FprEN 15502-1:2011 (E) 3 9.1General . 779.2Useful efficiency at the nominal heat input . 779.3Useful efficiency at part load . 799.4Losses of combination boilers . 8510Electric auxiliary energy . 8810.1General . 8810.2System boundaries. 8810.3Auxiliary energy at nominal heat input . 8810.4Auxiliary energy at part load . 8910.5Auxiliary energy at stand-by . 8911Risk assessment . 8912Marking and instructions . 9012.1Boiler marking . 9012.2Instructions . 9112.3Presentation . 9512.4Supplementary marking and instructions in the case of boilers to be installed in
partially protected places . 95Annex A(informative)
Properties of carbon and stainless steels . 102Annex B(normative)
Minimum requirements for cast iron . 103Annex C(normative)
Parts in aluminium and aluminium alloys. 104Annex D(normative)
Parts in copper or copper alloys . 105Annex E(normative)
Minimum thicknesses for rolled parts. 106Annex F(normative)
Nominal minimum thicknesses of boiler sections of cast materials under water pressure . 107Annex G(normative)
Parameters for welded joints and welding processes . 108Annex H(informative)
Composition of the gas circuit . 113Annex I(informative)
Compilation of the test conditions for the various gas families . 121Annex J(informative)
Calculation of conversions of NOx . 123Annex K(informative)
Example of calculation of the weighting factors NOx . 124Annex L(informative)
Practical method of calibrating the test rig to enable the heat loss Dp to be determined
.................................................................................................................................................... 126Annex M(informative)
Means of determining the ignition time at full rate . 127Annex 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 . 128Annex O(informative)
Example of a risk assessment method . 129Annex P(informative)
Examples of risk assessment with a method described in Annex O . 132Annex Q(informative)
Realization of a protective measure . 136Annex R(informative)
Overall classification of a basic risk. 138Annex S(informative)
Not exhaustive list of classification examples . 141Annex T(normative)
Correction for the determined efficiency in the low water temperature test of low temperature boilers (LTB) and condensing boilers (CB) . 143Annex U(informative)
Use of test gases . 144kSIST FprEN 15502-1:2012
FprEN 15502-1:2011 (E) 4 Annex V(informative)
Standards intended to be replaced by this standard in combination with the relevant part 2 . 145Annex W(informative)
Alternative Method for the determination of the nominal heat input or the maximum and minimum heat input (according to 8.4.1) for appliances using a pneumatic gas/air ratio control system . 146Annex ZA (informative)
Clauses of this European standard addressing essential requirements or provisions of EU Directive2009/142/EC, "Directive relating to appliances burning gaseous fuels (codified version)" (GAD) . 147Annex ZBClauses 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 . 150 kSIST FprEN 15502-1:2012
FprEN 15502-1:2011 (E) 5 Foreword This document (FprEN 15502-1:2011) has been prepared by Technical Committee CEN/TC 109 “Central heating boilers using gaseous fuels”, the secretariat of which is held by NEN. This document is currently submitted to the second Unique Acceptance Procedure. 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. For relationship with EU Directive(s), see informative Annex ZA and ZB, which are integral parts of this document. This document has been out for a first UAP from 2010-07-22 to 2010-12-22 (WI 00109038). This present document deals with the comments of that first UAP.
kSIST FprEN 15502-1:2012
FprEN 15502-1:2011 (E) 6 Introduction A Gas-fired heating boiler is an appliance using gas as fuel designed to heat water with the purpose of providing heat to a building (or portion of a building) from one point to multiple rooms using heat emitters such as radiators and convectors to transmit the heat from the water to the room. The boiler may also be used to provide domestic hot water via an indirect hot water storage tank.
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 may include in one design more than one function. It may include for example: a sanitary hot water function; a function to supply the combustion air from the outside of the building; a function to dispose the combustion products to the outside of the building.
The boiler design may be supplied to the marketed in more than one part. If the boiler is supplied to the marketed in multiple parts, the boiler is the assembly of various parts according to the installation instructions. Boilers may be designed to be connected to specific parts of a building. Especially connection to a chimney and the means of combustion air supply is relevant. This European standard was established to deal with aspects related to: a) safety; b) rational use of energy; c) fitness for purpose. This European Standard is a first part of a series of standards that will describe the special requirements for specific boiler types. This European Standard contains the common requirements that are applicable for the majority of the specific boiler types. This European Standard is to be used in conjunction with the specific Part 2. 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. Annex V lists which existing standards are intended to be replaced by this standard in combination with the relevant Part 2. The standards listed in Annex V are to be used until the relevant Part 2 cover the types indicated. This European standard by itself does not replace any European standard.
kSIST FprEN 15502-1:2012
FprEN 15502-1:2011 (E) 7 1 Scope This European Standard specifies, the common requirements and test methods concerning, in particular the construction, safety, fitness for purpose, and rational use of energy, as well as the classification and marking 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, according to CEN/TR 1749:2009:
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 heat transfer fluid 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 installation instructions to be either a “condensing” boiler or a "low temperature boiler" or a “standard boiler”. If no declaration is given the boiler is to be considered a “standard boiler” f) which are intended to be installed in a partially protected place; g) which are intended to produce hot water either by the instantaneous or storage principle, the whole being marketed as a single unit. This European Standard applies to boilers designed for sealed water systems or for open water systems. 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 shall 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 to being connected to gas grids where the quality of the distributed gas is likely to vary to a large extend over the lifetime of the appliance. 2 Normative references The following referenced documents are indispensable for the application 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, 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, Flame supervision devices for gas burning appliances — Thermoelectric flame supervision devices EN 126:2004, Multifunctional controls for gas burning appliances EN 161:2011, Automatic shut-off valves for gas burners and gas appliances EN 298:2003, Automatic gas burner control systems for gas burners and gas burning appliances with or without fans kSIST FprEN 15502-1:2012
FprEN 15502-1:2011 (E) 8 EN 437:2003, Test gases — Test pressures — Appliance categories EN 1057:2006+A1:2010, Copper and copper alloys — Seamless, round copper tubes for water and gas in sanitary and heating applications EN 1092-1:2007, Flanges and their joints —- Circular flanges for pipes, valves, fittings and accessories, PN designated – Part 1: Steel flanges EN 1092-2:1997, Flanges and their joints — Circular flanges for pipes, valves, fittings and accessories, PN designated — Part 2: Cast iron flanges EN 1092-3:2003, Flanges and their joints — Circular flanges for pipes, valves, fittings and accessories, PN designated — Part 3: Copper alloy flanges EN 1092-4:2002, Flanges and their joints — Circular flanges for pipes, valves, fittings and accessories, PN designated — Part 4: Aluminium alloy flanges CR 1404:1994, Determination of emissions from appliances burning gaseous fuels during type-testing CEN/TR 1749:2009, European scheme for the classification of gas appliances according to the method of evacuation of the combustion products (types) EN 10029:2010, Hot-rolled steel plates 3 mm thick or above — Tolerances on dimensions and shape
EN 10226-1:2004, Pipe threads where pressure tight joints are made on the threads — Part 1: Taper external threads and parallel internal threads — Dimensions, tolerances and designation EN 10226-2:2005, Pipe threads where pressure tight joints are made on the threads — Part 2: Taper external threads and taper internal threads — Dimensions, tolerances and designation EN 12067-1:1998, Gas/air ratio controls for gas burners and gas burning appliances — Part 1: Pneumatic types EN 12067-2:2004, Gas/air ratio controls for gas burners and gas burning appliances — Part 2: Electronic types EN 13203-1:2006, Gas-fired domestic appliances producing hot water — Appliances not exceeding 70 kW heat input and 300 l water storage capacity — Part 1: Assessment of performance of hot water deliveries EN 13611:2007, Safety and control devices for gas burners and gas burning appliances — General requirements EN 13836:2006, Gas fired central heating boilers — Type B boilers of nominal heat input exceeding 300 kW, but not exceeding 1 000 kW EN 14459:2007, Control functions in electronic systems for gas burners and gas burning appliances — Methods for classification and assessment EN 15456:2008, Heating boilers — Electrical power consumption for heat generators — System boundaries — Measurements EN 50090 (all parts), Home and Building Electronic Systems (HBES) EN 60335-1:2002, Household and similar electrical appliances — Safety — Part 1: General requirements
(IEC 60335-1:2001, modified) kSIST FprEN 15502-1:2012
FprEN 15502-1:2011 (E) 9 EN 60335-2-102:2006, Household and similar electrical appliances — Safety — Part 2-102: Particular requirements for gas, oil and solid-fuel burning appliances having electrical connections (IEC 60335-2-102:2004, modified) EN 60529:1991, Degrees of protection provided by enclosures (IP code) (IEC 60529:1989) EN 60730-2-9:2010, Automatic electrical controls for household and similar use — Part 2-9: Particular requirements for temperature sensing controls (IEC 60730-2-9:2008, modified) EN ISO 228-1:2003, Pipe threads where pressure-tight joints are not made on the threads — Part 1: Dimensions, tolerances and designation (ISO 228-1:2000) prEN ISO 2553:2011, Welding and allied processes — Symbolic representation on drawings — Welded, brazed and soldered joints (ISO/DIS 2553:2011) EN ISO 3166-1:2006, Codes for the representation of names of countries and their subdivisions — Part 1: Country codes (ISO 3166-1:2006) EN ISO 4063:2010, Welding and allied processes — Nomenclature of processes and reference numbers (ISO 4063:2009, Corrected version 2010-03-01) ISO 857-1:1998, Welding and allied processes — Vocabulary — Part 1: Metal welding processes ISO 857-2:2005, Welding and allied processes — Vocabulary — Part 2: Soldering and brazing processes and related terms 3 Terms, definitions and symbols 3.1 Terms and definitions For the purposes of this document, the terms and definitions given in EN 437:2003 and the following apply. 3.1.1 Gas supply 3.1.1.1 aeration adjuster device enabling the primary aeration of a burner to be set to the desired value according to the supply conditions 3.1.1.2 gas circuit assembly of parts of the boiler that carry or contain the combustible gas between the boiler gas inlet connection and the point at which air is admitted 3.1.1.3 gas inlet connection part of the boiler intended to be connected to the gas supply 3.1.1.4 gas rate adjuster component allowing the gas rate of the burner to be brought to a predetermined value according to the supply conditions NOTE The action of operating this device is called “adjustment of the gas rate”. kSIST FprEN 15502-1:2012
FprEN 15502-1:2011 (E) 10 3.1.1.5 injector component that admits gas into the burner 3.1.1.6 putting an adjuster or a control device out of service action intended to put an adjuster or control (rate, pressure, etc.) out of service 3.1.1.7 range-rating device component on the boiler intended to be used by the installer to adjust the nominal heat input of the boiler within the range of maximum and minimum heat inputs stated by the manufacturer, to suit the actual heat requirements of the installation 3.1.1.8 restrictor device (with one or more orifices if any), which is placed in the gas circuit so as to create a pressure drop and thus bring the gas pressure at the burner to a predetermined value for a given supply pressure and a given rate 3.1.1.9 sealing an adjuster or a control arrangements made to make evident any attempt to change its adjustment (e.g. breakage of a device or of a sealing material) NOTE A sealed adjuster or control is considered to be non-existent. 3.1.2 Burners 3.1.2.1 alternating ignition burner ignition burner that is extinguished as soon as ignition of the main burner is effected and re-igniting at the main burner flame just before the latter extinguishes 3.1.2.2 automatic ignition system automatic system which ignites the ignition burner or the main burner directly 3.1.2.3 ignition burner burner intended to ignite a main burner 3.1.2.4 ignition device any means (flame, electrical ignition device or other device) used to ignite the gas admitted to the ignition burner or the main burner 3.1.2.5 intermittent ignition burner ignition burner that is ignited before and extinguished at the same time as the main burner 3.1.2.6 interrupted ignition burner ignition burner that operates only during the ignition period 3.1.2.7 main burner burner that is intended to assure the thermal function of the boiler, generally called “the burner” kSIST FprEN 15502-1:2012
FprEN 15502-1:2011 (E) 11 3.1.2.8 manual ignition device device by means of which the ignition burner is ignited following manual intervention 3.1.2.9 pre-mixed burner burner in which the gas and a quantity of air at least equal to that theoretically necessary for complete combustion are mixed before the flame ports 3.1.2.10 permanent ignition burner ignition burner that operates continuously throughout the whole period that the boiler is in use 3.1.3 Air supply and combustion products circuit 3.1.3.1 combustion circuit circuit from the air inlet to the combustion products outlet of the appliance NOTE This will include the combustion chamber and heat exchanger and depending on the type includes the air supply duct, the combustion products evacuation duct, the fitting piece, the connection to the terminal,
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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Plinski kotli za gretje - 1. del: Splošne zahteve in preskusiHeizkessel fur gasformige Brennstoffe - Teil 1: Allgemeine Anforderungen und PrufungenChaudières de chauffage central utilisant les combustibles gazeux - Exigences générales et essaisGas-fired heating boilers - Part 1: General requirements and tests97.100.20Plinski grelnikiGas heaters91.140.10Sistemi centralnega ogrevanjaCentral heating systemsICS:Ta slovenski standard je istoveten z:FprEN 15502-1kSIST FprEN 15502-1:2010en,fr,de01-oktober-2010kSIST FprEN 15502-1:2010SLOVENSKI
STANDARD
kSIST FprEN 15502-1:2010
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
FINAL DRAFT
FprEN 15502-1
July 2010 ICS 27.060.30; 91.140.10 English Version
Gas-fired heating boilers - Part 1: General requirements and tests
Chaudieres de chauffage central utilisant les combustibles gazeux - Partie 1: Exigences et essais generales
Heizkessel fur gasformige Brennstoffe - Teil 1: Allgemeine Anforderungen und Prufungen This draft European Standard is submitted to CEN members for unique acceptance procedure. It has been drawn up by the Technical Committee CEN/TC 109.
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 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, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
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
Management Centre:
Avenue Marnix 17,
B-1000 Brussels © 2010 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. FprEN 15502-1:2010: EkSIST FprEN 15502-1:2010
FprEN 15502-1:2010 (E) 2 Contents Page Foreword . 61Scope . 72Normative references . 73Terms, definitions and symbols . 93.1Terms and definitions . 93.1.1Gas supply . 93.1.2Burners. 103.1.3Air supply and combustion products circuit . 113.1.4Adjusting, control and safety devices . 113.1.5Operation of the boiler . 143.1.6Outputs . 153.1.7Combustion . 153.1.8Times . 163.1.9Auxiliary energy . 173.1.10Design types of boilers . 173.1.11Installation . 173.2Symbols . 184Classification . 184.1Gases and categories . 184.2Mode of air supply and evacuation of the combustion products . 194.3Maximum water-side operating pressure . 195Construction . 195.1General . 195.2Conversion to different gases . 195.3Materials . 205.3.1General . 205.3.2Materials and thicknesses of walls or tubes with water side operating pressure for boilers of pressure class-3
............................................................................................................................................................................ 205.3.3Domestic water connections ........................................................................................................................... 215.3.4Thermal Insulation ............................................................................................................................................ 215.4Method of construction ...................................................................................................................................... 225.4.1Design ................................................................................................................................................................ 225.4.2Checking the state of operation ...................................................................................................................... 225.4.3Use and servicing ............................................................................................................................................. 225.4.4Connections to the gas and water pipes ........................................................................................................ 235.4.5Soundness ......................................................................................................................................................... 235.4.6Supply of combustion air and evacuation of the combustion products ..................................................... 245.4.7Dampers ............................................................................................................................................................. 245.4.8Air proving ......................................................................................................................................................... 255.4.9Gas/air ratio controls ........................................................................................................................................ 255.4.10Fan ...................................................................................................................................................................... 255.4.11Drainage ............................................................................................................................................................. 255.4.12Operational safety in the event of failure of the auxiliary energy ................................................................ 255.4.13Special provision for Low Temperature Boilers and Condensing Boilers ................................................. 265.5Burners ................................................................................................................................................................ 265.6Pressure test points ............................................................................................................................................ 275.7Requirements for the application of control and safety devices ................................................................... 275.7.1General ............................................................................................................................................................... 275.7.2Adjusters and range-rating devices ................................................................................................................ 275.7.3Gas circuit .......................................................................................................................................................... 28kSIST FprEN 15502-1:2010
FprEN 15502-1:2010 (E) 3 5.7.4Gas pressure regulator . 295.7.5Ignition devices . 295.7.6Flame supervision devices . 305.7.7Gas/air ratio controls . 315.7.8Thermostats and water temperature limiting devices . 315.7.9Remote control . 325.7.10Expansion vessel and pressure gauge . 335.7.11Protection against frost for boilers intended to be installed in a partially protected place . 335.7.12Adjusting, control and safety devices for the domestic hot water circuit . 336Electrical safety . 337Controls . 347.1General . 347.2Detailed specifications . 347.3Thermostats and water temperature limiting devices . 357.3.1General . 357.3.2Construction requirements . 367.3.3Performance . 378Safety of operation. 388.1General . 388.1.1Characteristics of the reference and limit gases . 398.1.2General test conditions . 398.2Soundness . 438.2.1Soundness of the gas circuit . 438.2.2Soundness of the combustion circuit . 448.2.3Soundness of the water circuit . 448.2.4Soundness of the domestic water circuit . 458.3Hydraulic resistance . 468.4Heat inputs and heat output . 468.4.1Determination of the nominal heat input or the maximum and minimum heat input . 468.4.2Adjustment of the heat input by the downstream gas pressure . 488.4.3Ignition rate. 488.4.4Nominal output . 488.4.5.Verification of the nominal condensing output . 488.4.6Nominal domestic hot water heat input . 498.4.7Water pressure to obtain the nominal heat input for instantaneous combination boilers . 498.4.8Obtaining the domestic hot water temperature for instantaneous combination boilers . 498.4.9Heating-up time of the domestic hot water . 498.5Limiting temperatures . 508.5.1General . 508.5.2Limiting temperatures of the adjusting, control and safety devices . 508.5.3Limiting temperatures of the side walls, the front and the top . 518.5.4Limiting temperature of the test panels and the floor . 518.6Ignition, cross lighting, flame stability . 528.6.1General . 528.6.2Limit conditions . 528.6.3Special conditions . 538.6.4Reduction of the gas rate of the ignition burner . 538.7Reduction of the gas pressure . 548.8Defective closure of the gas valve immediately upstream of the main burner . 548.9Pre-purge . 548.10Functioning of a permanent ignition burner when the fan stops during the standby time . 548.11Adjustment, control and safety devices . 558.11.1General . 558.11.2Boilers intended to be installed in a partially protected place . 558.11.3Combination Boilers . 55kSIST FprEN 15502-1:2010
FprEN 15502-1:2010 (E) 4 8.11.4Control devices . 588.11.5Ignition devices . 598.11.6Flame supervision device . 608.11.7Gas pressure regulator . 638.11.8Thermostats and water temperature limiting devices . 648.12Carbon monoxide . 668.12.1General . 668.12.2Limit conditions . 678.12.3Special conditions . 688.12.4Sooting . 698.12.5Supplementary test for low temperature boilers and condensing boilers . 698.13NOx . 708.13.1Requirement . 708.13.2Test methods . 708.14Special provisions for boilers intended to be installed in a partially protected
place . 738.14.1Frost protection system for boilers intended to be installed in a partially protected place . 738.14.2Protection against the ingress of rain . 748.15Formation of condensate . 748.16Temperature of combustion products . 749Useful efficiencies . 759.1General . 759.1.1Use of correction formulae . 759.1.2Use of the general test conditions . 759.2Useful efficiency at the nominal heat input . 759.2.1Requirements . 759.2.2Tests . 769.3Useful efficiency at part load . 779.3.1Requirements . 779.3.2Tests . 779.4Losses of combination boilers . 839.4.1Requirements for losses of combination boilers . 839.4.2Test of losses of combination boilers . 8310Electric auxiliary energy . 8610.1General . 8610.2System boundaries . 8610.3Auxiliary energy at nominal heat input . 8610.4Auxiliary energy at part load . 8710.5Auxiliary energy at stand-by . 8711Risk assessment . 8712Marking and instructions . 8812.1Boiler marking . 8812.1.1Data plate . 8812.1.2Supplementary markings . 8912.1.3Packaging . 8912.1.4Warnings on the boiler and the packaging . 8912.1.5Other information . 8912.2Instructions . 8912.2.1Technical instructions . 8912.2.2User’s instructions . 9212.2.3Conversion instructions . 9212.3Presentation . 93kSIST FprEN 15502-1:2010
FprEN 15502-1:2010 (E) 5 12.4Supplementary marking and instructions in the case of boilers to be installed in
partially protected places . 9312.4.1General information . 9312.4.2Warning on the boilers and the packaging . 9312.4.3Technical instructions . 93Annex A(informative)
Properties of carbon and stainless steels. 100Annex B(normative)
Minimum requirements for cast iron . 101Annex C(normative)
Parts cast in aluminium and aluminium alloys . 102Annex D(normative)
Parts cast in copper or copper alloys . 103Annex E(normative)
Minimum thicknesses for rolled parts . 104Annex F(normative)
Nominal minimum thicknesses of boiler sections of cast materials under water pressure
................................................................................................................................................................. 105Annex G(normative)
Parameters for welded joints and welding processes . 106Annex H(informative)
Composition of the gas circuit . 111H.1Minimum requirements for: .
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