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CEN

EN 297:1994/A6:2003

(Amendment)

Gas-fired central heating boilers - Type B11 and B11BS boilers, fitted with atmospheric burners of nominal heat input not exceeding 70 kW

Gas-fired central heating boilers - Type B11 and B11BS boilers, fitted with atmospheric burners of nominal heat input not exceeding 70 kW

This amendment 6 will extend the field of application of EN 297 to boilers intended to be installed in the open air in a partially protected place.

Heizkessel für gasförmige Brennstoffe - Heizkessel der Arten B11 und B11BS mit atmosphärischen Brennern, mit einer Nennwärmebelastung kleiner als oder gleich 70 kW

Chaudières de chauffage central utilisant les combustibles gazeux - Chaudières des types B11 et B11BS équipées de brûleurs atmosphériques dont le débit calorifique nominal est inférieur ou égal à 70 kW

Plinski kotli za centralno ogrevanje - Tipa B11 in B11BS z atmosferskimi gorilniki z imensko močjo do vključno 70 kW - Dopolnilo A6

General Information

Status
Withdrawn
Publication Date
11-Mar-2003
Withdrawal Date
29-Jul-2014
ICS
91.140.10 - Central heating systems
Technical Committee
CEN/TC 109 - Central heating boilers using gaseous fuels
Drafting Committee
CEN/TC 109 - Central heating boilers using gaseous fuels
Current Stage
9960 - Withdrawal effective - Withdrawal
Completion Date
30-Jul-2014
Directive
2009/142/EC - DIRECTIVE 2009/142/EC OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL of 30 November 2009 relating to appliances burning gaseous fuels
90/396/EEC - Appliances burning gaseous fuels
Mandate
M/BC/CEN/89/6 - Standardization request to CEN concerning appliances burning gaseous fuels
Ref Project
SIST EN 297:1997/A6:2004 - Gas-fired central heating boilers - Type B11 and B11BS boilers, fitted with atmospheric burners of nominal heat input not exceeding 70 kW

Relations

Replaced By
EN 15502-2-2:2014 - Gas-fired central heating boilers - Part 2-2: Specific standard for type B1 appliances
Effective Date
06-Aug-2014
Amends
EN 297:1994 - Gas-fired central heating boilers - Type B11 and B11BS boilers fitted with atmospheric burners of nominal heat input not exceeding 70 kW
Effective Date
08-Jun-2022

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Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN 297:1997/A6:2004
01-januar-2004
3OLQVNLNRWOL]DFHQWUDOQRRJUHYDQMH7LSD%LQ%%6]DWPRVIHUVNLPLJRULOQLNL]
LPHQVNRPRþMRGRYNOMXþQRN:'RSROQLOR$
Gas-fired central heating boilers - Type B11 and B11BS boilers, fitted with atmospheric
burners of nominal heat input not exceeding 70 kW
Heizkessel für gasförmige Brennstoffe - Heizkessel der Arten B11 und B11BS mit
atmosphärischen Brennern, mit einer Nennwärmebelastung kleiner als oder gleich 70
kW
Chaudieres de chauffage central utilisant les combustibles gazeux - Chaudieres des
types B11 et B11BS équipées de bruleurs atmosphériques dont le débit calorifique
nominal est inférieur ou égal a 70 kW
Ta slovenski standard je istoveten z: EN 297:1994/A6:2003
ICS:
91.140.10 Sistemi centralnega Central heating systems
ogrevanja
97.100.20 Plinski grelniki Gas heaters
SIST EN 297:1997/A6:2004 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------

SIST EN 297:1997/A6:2004

---------------------- Page: 2 ----------------------

SIST EN 297:1997/A6:2004
EUROPEAN STANDARD
EN 297:1994/A6
NORME EUROPÉENNE
EUROPÄISCHE NORM
March 2003
ICS 91.140.10
English version
Gas-fired central heating boilers - Type B11 and B11BS boilers,
fitted with atmospheric burners of nominal heat input not
exceeding 70 kW
Chaudières de chauffage central utilisant les combustibles Heizkessel für gasförmige Brennstoffe - Heizkessel der
gazeux - Chaudières des types B11 et B11BS équipées de Arten B11 und B11BS mit atmosphärischen Brennern, mit
brûleurs atmosphériques dont le débit calorifique nominal einer Nennwärmebelastung kleiner als oder gleich 70 kW
est inférieur ou égal à 70 kW
This amendment A6 modifies the European Standard EN 297:1994; it was approved by CEN on 6 December 2002.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for inclusion of this
amendment into the relevant national standard without any alteration. Up-to-date lists and bibliographical references concerning such
national standards may be obtained on application to the Management Centre or to any CEN member.
This amendment 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 Management Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,
Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, 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
© 2003 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 297:1994/A6:2003 E
worldwide for CEN national Members.

---------------------- Page: 3 ----------------------

SIST EN 297:1997/A6:2004
EN 297:1994/A6:2003 (E)
Foreword
This document (EN 297:1994/A6:2003) has been prepared by Technical Committee CEN/TC 109 "Central heating
boilers using gaseous fuels", the secretariat of which is held by NEN.
This Amendment to the European Standard EN 297:1994 shall be given the status of a national standard, either by
publication of an identical text or by endorsement, at the latest by September 2003, and conflicting national
standards shall be withdrawn at the latest by September 2003.
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).
This Amendment 6 will extend the scope of EN 297 to boilers intended to be installed in a partially protected place.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following
countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal,
Slovakia, Spain, Sweden, Switzerland and the United Kingdom.
2

---------------------- Page: 4 ----------------------

SIST EN 297:1997/A6:2004
EN 297:1994/A6:2003 (E)
1.1 Field of application
Add to the first list of indents
" — intended to be installed indoors and/or in a partially protected place"
1.3 Definitions
Add a new sub-clause including a note, as follows:
"1.3.3.3.27 Frost protection system
System that actively protects the water in the boiler against freezing.
NOTE An anti-freeze solution is not considered as an active frost protection system."
Add a new sub-clause, as follows:
"1.3.4.19 Boilers intended to be installed in a partially protected place
Boilers intended to
...

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ad)   appliances of the types A, B14, B¬2, B3, B4, B5 and C;
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ag)   modular boilers;
ah)   boilers which can give rise to condensation under certain circumstances;
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aj)   surface temperatures of external parts particular to children and elderly people;
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al)   boilers intended to be installed in areas accessible to elderly people and children;
am)   boilers equipped with an adaptive combustion control function (ACCF).
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Replace ab) and ak) and al) by the following:
ab) appliances that are intended to be connected to gas grids where the quality of the distributed gas is likely to vary to a large extent over the lifetime of the appliance (see Annex AB of EN 15502-1:2021), except for fully premixed appliances with a ACCF, as ACCF appliances are designed to adapt to variations in gas quality.
ak) appliances that are intended to burn natural gases of the second family where hydrogen is added to the natural gas, except for fully premixed appliances with a ACCF or PGAR (which are covered by this document);
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Amendment for the addition of ecodesign requirements (Regulation No 813/2013)
and energy labelling requirements (Regulation No 811/2013)
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, marking and energy labelling of gas-fired central heating boilers that are fitted with atmospheric burners, fan assisted atmospheric burners or fully premixed burners, and are hereafter referred to as “boilers”.
This European Standard is to be used in conjunction with the specific Parts 2 (Part 2-1 and following ones).
This European Standard applies to boilers of types B and C, according to CEN/TR 1749:2014:
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.

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