Heating boilers - Special requirements for oil fired room sealed units up to 70 kW

This European Standard applies to type CX3 central heating boilers as specified in 4.1, equipped with atomizing oil burners:
   type C13, type C33, and type C53 boilers, including their combustion air supply and combustion products evacuation ducts and their terminals;
   type C43 boilers including their connection ducts but without the chimney which is erected as a shared duct system and which is part of the building;
   type C63 boilers, including the connecting piece as specified in 3.7, if not integrated into the boiler;
   type C83 boilers, including their connection ducts but without the chimney which is part of the building;
   that have a nominal useful heat output below or equal to 70 kW;
   where the temperature of the water does not exceed 100 °C during normal operation;
   where the maximum water-side operating pressure does not exceed 8 bar.
This European Standard is intended to establish specific requirements and test methods for type C atomizing oil burning central heating boilers with respect to construction, safety, fitness for purpose, rational use of energy, classification and marking.
This European Standard only covers standard tests.
For boilers that produce domestic hot water by a drum or exchanger, integrated or juxtaposed, (by accumulation of instant production), this standard only applies to hot water reheating system components that are not subject to operating conditions applicable to the boiler heating system.
This European Standard covers units consisting of boilers equipped with burners that meet the requirements of EN 267, with the following exceptions:
   maximum NOx and CO emission values, estimated for boilers according to the classes defined in
EN 303-2;
   air factor value, defined by the manufacturer and stated in the boiler’s technical specifications;
   marking and/or burner data plate which may provide information for the boiler data plate;
   installation recommendations for installing the burner on the boiler included

Heizkessel - Besondere Anforderungen an ölbefeuerte Units für den raumluftunabhängigen Betrieb bis einschließlich 70 kW

Diese Europäische Norm gilt für folgende Kessel des Typs CX3, die die Festlegungen von 4.1 erfüllen und mit Ölzerstäubungsbrennern ausgerüstet sind:
   Kessel der Typen C13, C33 und C53 einschließlich ihrer Verbrennungsluftzu-/Abgasabführung und der Windschutzeinrichtung(en);
   Kessel des Typs C43 einschließlich ihrer Anschlusskanäle, jedoch ohne den Schornstein, der als Luft-Abgas-Schornstein errichtet wird und Teil des Gebäudes ist;
   Kessel des Typs C63 einschließlich des Anschlussstücks, wie in 3.7 festgelegt, falls dieses nicht Bestand¬teil des Kessels ist;
   Kessel des Typs C83 einschließlich ihrer Anschlusskanäle, jedoch ohne den Schornstein, der Teil des Gebäudes ist;
   mit einer Nennwärmebelastung bis einschließlich 70 kW;
   bei denen die Temperatur des Wassers unter normalen Betriebsbedingungen 100 °C nicht übersteigt;
   deren maximaler wasserseitiger Betriebsdruck 8 bar nicht übersteigt.
Diese Europäische Norm dient zur Festlegung von besonderen Anforderungen und Prüfverfahren für Kessel des Typs C mit Ölzerstäubungsbrennern hinsichtlich Bauweise, Sicherheit, Gebrauchstauglichkeit, rationeller Energieverwendung, Klassifizierung und Kennzeichnung.
Diese Europäische Norm behandelt ausschließlich Normprüfungen.
Bei Kesseln mit Trinkwassererwärmung durch integrierte oder nebeneinander aufgestellte Speicher oder Wärmetauscher mit nachgeschaltetem Trinkwasserspeicher gilt diese Norm nur für die Komponenten des Heizsystems, die nicht den Betriebsbedingungen des Kessels für die Trinkwassererwärmung ausgesetzt sind.
Diese Europäische Norm gilt für Units, die aus Kesseln mit Brennern, die die Anforderungen von EN 267 erfüllen, bestehen, ausgenommen die folgenden:
   maximale NOX- und CO-Emissionswerte, die für Kessel nach den in EN 303 2 festgelegten Klassen vorgegeben sind;
   Luftzahl, die vom Hersteller festgelegt und in den technischen Unterlagen für den Kessel ange¬geben ist;

Chaudières de chauffage central - Exigences spécifiques aux chaudières au fioul étanches de puissance inférieure ou égale à 70 kW

La présente Norme européenne s'applique aux chaudières de chauffage central de type CX3, telles que spécifiées en 4.1, équipées de brûleurs fioul à pulvérisation, à savoir :
   les chaudières de types C13, C33 et C53, y compris leurs conduits d’amenée d’air comburant et d'évacuation des produits de combustion, ainsi que leurs terminaux ;
   les chaudières de type C43, y compris leurs conduits de raccordement, à l'exception toutefois du conduit de fumées qui est installé comme un conduit collectif et fait partie intégrante du bâtiment ;
   les chaudières de type C63, y compris la pièce de raccordement telle que spécifiée en 3.7, si elle n’est pas intégrée à la chaudière ;
   les chaudières de type C83, y compris leurs conduits de raccordement, à l’exception toutefois du conduit de fumées qui fait partie intégrante du bâtiment ;
   dont la puissance nominale utile est inférieure ou égale à 70 kW ;
   dont la température de l’eau ne dépasse pas 100 °C en fonctionnement normal ;
   dont la pression maximale de service d'eau ne dépasse pas 8 bar.
La présente Norme européenne vise à établir des exigences spécifiques et des méthodes d’essai relatives à la construction, la sécurité, l’aptitude à la fonction, l’utilisation rationnelle de l'énergie, la classification et le marquage des chaudières de chauffage central de type C équipées de brûleurs fioul à pulvérisation.
La présente Norme européenne couvre uniquement les essais de type.
Dans le cas des chaudières de production d’eau chaude sanitaire (à accumulation ou instantanée), à ballon ou à échangeur de chaleur, intégré ou juxtaposé, la présente Norme s’applique uniquement aux composants du circuit de réchauffage de l’eau chaude qui ne sont pas assujettis aux conditions de fonctionnement applicables au circuit de chauffage de la chaudière.
La présente Norme européenne traite des unités équipées d’un brûleur conforme aux exigences de l’EN 267, aux exceptions suivantes près :

Kotli za gretje – Posebne zahteve za oljne kotle z zunanjim zajemom zraka do 70 kW

General Information

Status
Published
Publication Date
05-Dec-2006
Withdrawal Date
29-Jun-2007
Current Stage
9060 - Closure of 2 Year Review Enquiry - Review Enquiry
Start Date
03-Mar-2024
Completion Date
03-Mar-2024

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SLOVENSKI STANDARD
01-februar-2007
Kotli za gretje – Posebne zahteve za oljne kotle z zunanjim zajemom zraka do 70
kW
Heating boilers - Special requirements for oil fired room sealed units up to 70 kW
Heizkessel - Besondere Anforderungen an ölbefeuerte Units für den
raumluftunabhängigen Betrieb bis einschließlich 70 kW
Chaudieres de chauffage central - Exigences spécifiques aux chaudieres au fioul
étanches de puissance inférieure ou égale a 70 kW
Ta slovenski standard je istoveten z: EN 15035:2006
ICS:
97.100.40 *UHOQLNLQDWHNRþHJRULYR Liquid fuel heaters
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 15035
NORME EUROPÉENNE
EUROPÄISCHE NORM
December 2006
ICS 97.100.40
English Version
Heating boilers - Special requirements for oil fired room sealed
units up to 70 kW
Chaudières de chauffage - Système de circuit de Heizkessel - Besondere Anforderungen an ölbefeuerte
combustion étanche des chaudières au fioul Units für den raumluftunabhängigen Betrieb bis
einschließlich 70 kW
This European Standard was approved by CEN on 4 November 2006.
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 Central Secretariat 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 Central Secretariat has the same status as the official
versions.
CEN members are the national standards bodies of Austria, Belgium, 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.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36  B-1050 Brussels
© 2006 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 15035:2006: E
worldwide for CEN national Members.

Contents Page
Foreword.3
1 Scope .4
2 Normative references .5
3 Terms and definitions .5
4 Boiler classification.6
5 Construction and materials .8
6 Operational requirements .10
7 Test methods.14
8 Marking and instructions .21
Annex A (informative) Classification of type C boilers .32
Annex B (informative) Steel grades.34
Annex ZA (informative) Relationship between this European Standard and the Essential Requirements
of EU Directive 92/42/EEC on efficiency requirements for new hot-water boilers fired with
liquid or gaseous fuels.35
Bibliography .36

Foreword
This document (EN 15035:2006) has been prepared by Technical Committee CEN/TC 57 “Central heating
boilers”, the secretariat of which is held by DIN.
This European Standard shall be given the status of a national standard, either by publication of an identical
text or by endorsement, at the latest by June 2007, and conflicting national standards shall be withdrawn at
the latest by June 2007.
This document has been prepared under a mandate given to CEN by the European Commission and the
European Free Trade Association and supports essential requirements of EU Directive(s).
For relationship with EU Directive(s), see informative Annex ZA, which is an integral part of this document.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following
countries are bound to implement this European Standard: Austria, Belgium, 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.
1 Scope
This European Standard applies to type C central heating boilers as specified in 4.1, equipped with
X3
atomizing oil burners:
 type C , type C and type C boilers, including their combustion air supply and combustion products
13 33, 53
evacuation ducts and their terminals;
 type C boilers including their connection ducts but without the chimney which is erected as a shared
duct system and which is part of the building;
 type C boilers, including the connecting piece as specified in 3.7, if not integrated into the boiler;
 type C boilers, including their connection ducts but without the chimney which is part of the building;
 that have a nominal useful heat output below or equal to 70 kW;
 where the temperature of the water does not exceed 100 °C during normal operation;
 where the maximum water-side operating pressure does not exceed 8 bar.
This European Standard is intended to establish specific requirements and test methods for type C atomizing
oil burning central heating boilers with respect to construction, safety, fitness for purpose, rational use of
energy, classification and marking.
This European Standard covers only standard tests.
For boilers that produce domestic hot water by a drum or a heat exchanger, integrated or juxtaposed, (by
accumulation of instant production), this standard only applies to hot water reheating system components that
are not subject to operating conditions applicable to the boiler heating system.
This European Standard covers units consisting of boilers equipped with burners that meet the requirements
of EN 267, with the following exceptions:
 maximum NO and CO emission values, estimated for boilers according to the classes defined in
x
EN 303-2;
 air factor value, defined by the manufacturer and stated in the boiler’s technical specifications;
 marking and/or burner data plate which may provide information for the boiler data plate;
 installation recommendations for installing the burner on the boiler included in the boiler operating
instructions.
This European Standard modifies EN 303-1, EN 303-2, EN 304 and specifies supplementary requirements
only for room sealed operations.

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 267, Forced draught oil burners — Definitions, requirements, testing, marking
EN 303-1, Heating boilers — Part 1: Heating boilers with forced draught burners — Terminology, general
requirements, testing and marking
EN 303-2:1998, Heating boilers — Part 2: Heating boilers with forced draught burners — Special
requirements for boilers with atomizing oil burners
EN 303-4, Heating boilers — Part 4: Heating boilers with forced draught burners — Special requirements for
boilers with forced draught oil burners with outputs up to 70 kW and a maximum operating pressure of 3 bar
— Terminology, special requirements, testing and marking
EN 304:1992, Heating boilers — Test code for heating boilers for atomizing oil burners
EN 1443, Chimneys — General requirements
EN 1457, Chimneys — Clay/Ceramic Flue Liners - Requirements and test methods
EN 1856-1, Chimneys — Requirements for metal chimneys — Part 1: System chimney products
EN 1856-2, Chimneys — Requirements for metal chimneys — Part 2: Metal liners and connecting flue pipes
EN 13063-1, Chimneys — System chimneys with clay/ceramic flue liners — Part 1: Requirements and test
methods for sootfire resistance
EN 13063-2, Chimneys — System chimneys with clay/ceramic flue liners — Part 2: Requirements and test
methods under wet conditions
EN 13216-1, Chimneys — Test methods for system chimneys — Part 1: General test methods
EN 14471, Chimneys — System chimneys with plastic flue liners — Requirements and test methods
EN 15034, Heating boilers — Condensing heating boilers for fuel oil
3 Terms and definitions
For the purposes of this European Standard, the following terms and definitions apply.
3.1
required draught
difference in pressure between the static pressure of the air in the area where the boiler is installed and the
static pressure of combustion products leaving the boiler (combustion products measuring hole), required to
ensure good working order
3.2
room-sealed boiler
boiler in which the combustion circuit is sealed off from the area where the boiler is installed
3.3
combustion circuit
circuit including the air supply duct, burner, combustion chamber, heat exchanger, combustion products
evacuation duct and either the connection piece or terminal connection (where applicable)
3.4
air supply and combustion products evacuation ducts
means for transporting combustion air to the burner and combustion products to the terminal or connection
piece.
It is necessary to distinguish between:
 completely surrounded ducts: combustion products evacuation duct is surrounded by combustion air
throughout its length;
 separate ducts: combustion products evacuation duct and the combustion air supply duct are neither
concentric nor completely surrounded ducts
3.5
terminal
device fitted to the outside of a building, to which are connected:
 air supply and combustion products evacuation ducts for type C and type C boilers (one device);
13 33
 air supply duct and the combustion products evacuation duct for type C boilers (two devices);
 air supply duct for type C boilers (no device)
3.6
terminal guard
device that protects the terminal from mechanical damage from outside influences
3.7
connection piece
device which allows the fitting of a sealed boiler to any system for combustion air supply and combustion
products boiler classification
4 Boiler classification
4.1 General
A type C boiler is a boiler in which the combustion circuit is sealed from the area of the building where the
boiler is installed.
The air supply and combustion products evacuation ducts and the terminal or the fitting piece which is used to
connect the boiler to a chimney or duct system may or may not be part of the unit as stated in 4.2. They admit
fresh air from outside the building to the burner as well as discharge the combustion products to the outside.
Boilers are classified into several types according to the combustion products mode of evacuation and supply
of combustion air (see examples attached in Annex A).
)
The types are defined by two subscripts:
 first subscript number is based on the possible boiler installation with respect to the mode of air supply
and evacuation of the combustion products (see 4.2);
 second subscript number is based upon the presence and position of an integral fan in the boiler (see
4.2.8).
4.2 Type of boiler installation
4.2.1 General
Types of installation given below are in line with CR 1749.
4.2.2 Type C
A type C boiler connected via its ducts to a horizontally installed terminal at the wall or on the roof. The orifices
of the ducts are either concentric or close enough to come under similar wind conditions.
4.2.3 Type C
A type C boiler which is connected via its ducts to a vertically installed terminal. The orifices of the ducts are
either concentric or close enough to come under similar wind conditions.
4.2.4 Type C
A type C boiler which is fitted via its ducts possibly by means of a fitting piece to a shared duct system
consisting of a duct for the supply of the combustion air and a duct for the discharge of the combustion
products. The orifices of this shared duct system are either concentric or close enough to come under similar
wind conditions.
4.2.5 Type C
A type C boiler which is connected via its separate ducts to two terminals that may terminate in zones of
different pressure.
4.2.6 Type C
A type C boiler connected to a separately approved and marketed system for the supply of combustion air and
discharge of the combustion products.
4.2.7 Type C
A type C boiler which is connected via its ducts by means of a fitting piece to an air supply terminal and fitted
to an individual or shared chimney.
4.2.8 Presence and position of a fan
 Type C boiler that does not incorporate a fan is identified by the second subscript number “1” (e.g. C ).
...

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