Heating boilers - Part 2: Heating boilers with forced draught burners - Special requirements for boilers with atomizing oil burners

This standard is applicable to heating boilers in accordance with EN 303-1 up to a nominal heat output of 1 000 kW and EN 303-4 up to a nominal heat output of 70 kW with atomizing oil burners  in accordance with EN 267 which are designed for operating with liquid fuels.
This European Standard applies to low temperature boilers in accordance with EN 303 1/A1 and specifies the heating related requirements necessary for liquid fuels for low temperature boilers and the required additional duration test for oil fired low temperature boilers.
The performance requirements of this standard apply to type testing to heating boilers (standard, low temperature and condensing boilers) which are tested on a test rig in accordance with the test code given in EN 304.
This standard applies also to room sealed boilers as defined in EN 15035 regarding efficiency and emissions.
This standard specifies the necessary heating technical requirements for heating boilers with liquid fuels.
NOTE   This Standard can also be used as the basis for evaluation of package boiler /burner units.

Heizkessel - Teil 2: Heizkessel mit Gebläsebrenner; Spezielle Anforderungen an Heizkessel mit Ölzerstäubungsbrennern

Diese Europäische Norm gilt für Heizkessel für Zentralheizungen nach prEN 303-1:2016 bis zu einer Nennwärmeleistung von 1 000 kW und EN 303-4 bis zu einer Nennwärmeleistung von 70 kW mit Gebläsebrennern nach EN 267, die für den Betrieb mit flüssigen Brennstoffen konzipiert wurden.
Die Leistungsanforderungen dieser Norm gelten für die Typ-Prüfung von Heizkesseln (Standard-, Niedertemperatur- und Brennwertkessel), die auf einem Prüfstand geprüft werden, in Übereinstimmung mit den in prEN 304 beschriebenen Prüfregeln.
Die Norm gilt auch für raumluftunabhängige Kessel  gemäß der Definition in EN 15035 was Wirkungsgrad und Emissionen betrifft.
Diese Norm kann auch als Grundlage für die Bewertung von Heizkessel-/Brennereinheiten dienen.

Chaudières de chauffage - Partie 2 : Chaudières avec brûleurs à air soufflé, prescriptions spéciales pour chaudières avec brûleurs fioul à pulvérisation

La présente Norme européenne s'applique aux chaudières de chauffage central conformes au prEN 303-1:2016 jusqu'à une puissance thermique nominale de 1 000 kW et à l'EN 303-4 jusqu'à une puissance thermique nominale de 70 kW, pourvues de brûleurs à air soufflé conformes à l'EN 267 et conçues pour fonctionner avec des combustibles liquides.
Les exigences de performance de la présente norme s'appliquent aux essais de type de chaudières de chauffage (chaudières standard, à basse température et à condensation) soumises à essai sur un banc d'essai conformément aux règles d'essai du prEN 304:2016.
La présente norme s'applique également aux chaudières étanches définies dans l'EN 15035, pour ce qui concerne le rendement et les émissions.
La présente norme peut aussi servir de base pour l'évaluation des assemblages de chaudière/brûleur.

Kotli za gretje - 2. del: Kotli z ventilatorskimi gorilniki - Posebne zahteve za kotle z razprševalnimi oljnimi gorilniki

Ta standard se uporablja za kotle za gretje v skladu s standardom EN 303-1 do nazivne toplotne moči 1000 kW in standardom EN 303-4 do nazivne toplotne moči 70 kW z razprševalnimi oljnimi gorilniki v skladu s standardom EN 267, ki so zasnovani za delovanje s tekočimi gorivi. Ta evropski standard se uporablja za nizkotemperaturne kotle v skladu s standardom EN 303-1/A1 in določa z gretjem povezane zahteve, potrebne za tekoča goriva za nizkotemperaturne kotle in potreben dodatni preskus trajanja za naftne nizkotemperaturne kotle. Zahteve glede zmogljivosti v tem standardu veljajo za tipsko preskušanje za ogrevalne kotle (standardne, nizkotemperaturne in kondenzacijske kotle), ki se preskušajo na preskusni napravi v skladu s preskusno kodo, navedeno v standardu EN 304.  Ta standard se glede učinkovitosti in emisij uporablja tudi za kotle za uporabo v zaprtih prostorih, kot je opredeljeno v standardu EN 15035. Ta standard določa potrebne tehnične zahteve glede ogrevanja za kotle za gretje s tekočimi gorivi. OPOMBA: Ta standard je mogoče uporabljati tudi kot osnovo za vrednotenje enot vodnih kotlov/gorilnikov.

General Information

Status
Published
Public Enquiry End Date
31-Jul-2016
Publication Date
12-Nov-2017
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
07-Nov-2017
Due Date
12-Jan-2018
Completion Date
13-Nov-2017

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SLOVENSKI STANDARD
SIST EN 303-2:2017
01-december-2017
1DGRPHãþD
SIST EN 15034:2007
SIST EN 15034:2007/AC:2008
SIST EN 303-2:1999
SIST EN 303-2:1999/A1:2004

Kotli za gretje - 2. del: Kotli z ventilatorskimi gorilniki - Posebne zahteve za kotle z

razprševalnimi oljnimi gorilniki
Heating boilers - Part 2: Heating boilers with forced draught burners - Special
requirements for boilers with atomizing oil burners
Heizkessel - Teil 2: Heizkessel mit Gebläsebrenner; Spezielle Anforderungen an
Heizkessel mit Ölzerstäubungsbrennern

Chaudières de chauffage - Partie 2 : Chaudières avec brûleurs à air soufflé, prescriptions

spéciales pour chaudières avec brûleurs fioul à pulvérisation
Ta slovenski standard je istoveten z: EN 303-2:2017
ICS:
27.060.10 *RULOQLNLQDWHNRþHLQWUGR Liquid and solid fuel burners
JRULYR
91.140.10 Sistemi centralnega Central heating systems
ogrevanja
SIST EN 303-2:2017 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
SIST EN 303-2:2017
---------------------- Page: 2 ----------------------
SIST EN 303-2:2017
EN 303-2
EUROPEAN STANDARD
NORME EUROPÉENNE
August 2017
EUROPÄISCHE NORM
ICS 91.140.10 Supersedes EN 15034:2006, EN 303-2:1998
English Version
Heating boilers - Part 2: Heating boilers with forced
draught burners - Special requirements for boilers with
atomizing oil burners

Chaudières de chauffage - Partie 2: Chaudières avec Heizkessel - Teil 2: Heizkessel mit Gebläsebrennern -

brûleurs à air soufflé - Prescriptions spéciales pour Spezielle Anforderungen an Heizkessel mit

chaudières avec brûleurs fioul à pulvérisation Ölzerstäubungsbrennern
This European Standard was approved by CEN on 26 June 2017.

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, 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: Avenue Marnix 17, B-1000 Brussels

© 2017 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 303-2:2017 E

worldwide for CEN national Members.
---------------------- Page: 3 ----------------------
SIST EN 303-2:2017
EN 303-2:2017 (E)
Contents Page

European foreword ....................................................................................................................................................... 3

1 Scope .................................................................................................................................................................... 5

2 Normative references .................................................................................................................................... 5

3 Terms and definitions ................................................................................................................................... 5

3.1 General terms and definitions .................................................................................................................... 5

3.2 Terms and definitions relevant to eco-design and labelling regulations terms ...................... 6

4 Performance requirements ......................................................................................................................... 6

4.1 General ................................................................................................................................................................ 6

4.2 Boiler efficiency ............................................................................................................................................... 6

4.2.1 Air ratio for efficiency measurement ....................................................................................................... 6

4.2.2 Boilers of heat output ≤ 70 kW ................................................................................................................... 6

4.2.3 Boilers of heat output > 70 kW and ≤ 400 kW ...................................................................................... 7

4.2.4 Boilers of heat output > 400 kW and ≤ 1000 kW ................................................................................. 7

4.3 Draught requirements and gas side resistance.................................................................................... 7

4.4 Emission values ............................................................................................................................................... 7

4.5 Standby heat loss ............................................................................................................................................. 7

4.6 Auxiliary electricity consumption ............................................................................................................ 8

4.7 Sound power level ........................................................................................................................................... 8

4.8 Samples for testing ......................................................................................................................................... 8

5 Material performance .................................................................................................................................... 8

5.1 General ................................................................................................................................................................ 8

5.2 Test specimen and test duration ............................................................................................................... 8

5.3 Adjustment values for the test.................................................................................................................... 8

Annex A (normative) Assembly criteria ............................................................................................................ 11

Annex B (informative) Example of test evaluation for a 3-months duration test .............................. 13

Annex ZA (informative) Relationship between this European Standard and the ecodesign

requirements of Commission Regulation (EU) No [813/2013] aimed to be covered ......... 15

Bibliography ................................................................................................................................................................. 16

---------------------- Page: 4 ----------------------
SIST EN 303-2:2017
EN 303-2:2017 (E)
European foreword

This document (EN 303-2:2017) 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 February 2018, and conflicting national standards

shall be withdrawn at the latest by February 2018.

Attention is drawn to the possibility that some of the elements of this document may be the subject of

patent rights. CEN shall not be held responsible for identifying any or all such patent rights.

This document has been prepared under a mandate given to CEN by the European Commission and the

European Free Trade Association, and supports essential requirements of Regulation (EU) No

813/2013.

For relationship with EU Regulation(s), see informative Annex ZA, which is an integral part of this

document.
This document supersedes EN 303-2:1998 and EN 15034:2006.
The main technical changes compared to EN 303-2:1998 are the following:
a) Complete new structure;
b) Technical changes related to ecodesign and energy labelling:
1) 4.2, boiler efficiency and seasonal space heating efficiency;
2) 4.4, limitation of the emissions;
3) 4.5, standby heat loss;
4) 4.6, auxiliary electrical consumption;
5) 4.7, sound power level.
c) Additions related to ecodesign and energy labelling:
1) Annex ZA.
The following structure is intended for the standards for heating boilers:

— EN 303-1, Heating boilers — Part 1: Heating boilers with forced draught burners — Terminology,

general requirements, testing and marking

— EN 303-2, Heating boilers — Part 2: Heating boilers with forced draught burners — Special

requirements for boilers with atomizing oil burners

— EN 303-3, Heating boilers — Part 3: Gas fired central heating boilers — Assembly comprising a boiler

body and a forced draught burner
---------------------- Page: 5 ----------------------
SIST EN 303-2:2017
EN 303-2:2017 (E)

— 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 303-5, Heating boilers — Part 5: Heating boilers for solid fuels, manually and automatically

stoked, — nominal heat output of up to 500 kW - Terminology, requirements, testing and marking

— EN 304, Heating boilers — Test code for heating boilers for atomizing oil burners

— EN 303-6, Heating boilers - Part 6: Heating boilers with forced draught burners; specific

requirements for the domestic hot water operation of combination boilers with atomizing oil burners

of nominal heat input not exceeding 70 kW

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, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,

Turkey and the United Kingdom.
---------------------- Page: 6 ----------------------
SIST EN 303-2:2017
EN 303-2:2017 (E)
1 Scope

This European Standard is applicable to boilers used for central heating in accordance with

EN 303-1:2017 up to a nominal heat output of 1 000 kW and EN 303-4 up to a nominal heat output of

70 kW with forced draught burners in accordance with EN 267 that are designed for operating with

liquid fuels.

The performance requirements of this standard apply to type testing to heating boilers (standard, low

temperature and condensing boilers) which are tested on a test rig in accordance with the test code

given in EN 304.

This standard applies also to room sealed boilers as defined in EN 15035 regarding efficiency and

emissions.

This standard can also be used as the basis for evaluation of boiler-/burner units.

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 267:2009+A1:2011, Automatic forced draught burners for liquid fuels

EN 303-1:2017, Heating boilers - Part 1: Heating boilers with forced draught burners - Terminology,

general requirements, testing and marking

EN 303-4:1999, 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 304:2017, Heating boilers - Test code for heating boilers for atomizing oil burners

EN 15035:2006, Heating boilers - Special requirements for oil fired room sealed units up to 70 kW

EN 15036-1:2006, Heating boilers - Test regulations for airborne noise emissions from heat generators -

Part 1: Airborne noise emissions from heat generators

EN 15316-4-1:2017, Energy performance of buildings - Method for calculation of system energy

requirements and system efficiencies - Part 4-1: Space heating and DHW generation systems, combustion

systems (boilers, biomass), Module M3-8-1, M8-8-1
3 Terms and definitions

For the purposes of this document, the terms and definitions given in EN 303-1:2017 and the following

apply.
3.1 General terms and definitions
3.1.1
range rated boiler
appliance where the heat output is fixed in a given range
3.1.2
modulating boiler
appliance where the heat output is varying in a given range automatically
---------------------- Page: 7 ----------------------
SIST EN 303-2:2017
EN 303-2:2017 (E)
3.1.3
standby heat loss
stby

the heat loss of a boiler space heater, boiler combination heater in operating mode without heat

demand, expressed in kW
3.1.4
combination boiler (combi boiler)

boiler designed both for central heating and for the production of domestic hot water

Note 1 to entry: Depending on its type of domestic hot water production, the combination boiler is classified in

accordance with the manufacturer's declaration as instantaneous type or storage type.

3.2 Terms and definitions relevant to eco-design and labelling regulations terms
3.2.1
sound power level
A-weighted sound power level, indoors, expressed in dB(A)
3.2.2
package

unit of boilers or combination boilers, temperature control and/or solar devices means a package

offered to the end-user containing one or more boilers or combination boilers combined with one or

more temperature controls and/or one or more solar devices

Note 1 to entry: Definition based on Labelling Regulation 811/2013 Article 2 - (19) and (20).

4 Performance requirements
4.1 General
All the following performance tests are carri
...

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