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Withdrawn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

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.

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.
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 be installed in the open air, not exposed to the direct action and infiltration of rain, snow or
hail."
Add a footnote to 1.3.4.19
" If a boiler is sold with a casing intended to provide protection, this casing is an integral part of the boiler."
Add a new sub-clause, as follows:
"1.3.4.20 Boilers intended to be installed indoors and/or in a partially protected place
Boilers intended to be installed:
— either only indoors;
— either only in a partially protected place;
— either indoors or in a partially protected place."
2.1.2.1 General
Add to the second paragraph, as follows:
" For boilers intended to be installed in a partially protected place, all materials employed in the construction,
including seals, gaskets and sealing pastes, if any, shall function properly in the environmental conditions
under which they are expected to operate.
The manufacturer shall declare in the technical instructions for the installer the minimum and maximum
ambient temperatures at which the boiler is designed to operate (see 5.2.1)."
2.1.10 Electrical equipment
Add at the end of Clause 2.1.10:
" For boilers intended to be installed in a partially protected place,
— the enclosure protection degree shall be at least IPX4D, in accordance with EN 60529;
— the electrical and/or electronic equipment shall be applied within its specified temperature range.”
2.2.10 Combustion products discharge safety device
Replace the first indent
" — either in the open air"
by
" — in the open air,
— or in a partially protected place,"
Add a new sub-clause, as follows:
" 2.2.11 Protection against frost for boilers intended to be installed in a partially protected
place
If the minimum ambient temperature declared by the manufacturer is less than 0 °C, a boiler intended to
operate in a partially protected place, shall be protected from freezing by a frost protection system."
Add a new footnote to 2.2.11 as follows:
" For combination boilers, the domestic hot water production circuit is also to be protected from damage
caused by frost."
3.4.2.2.1 Resistance to draught
Replace the existing text by:
" 3.4.2.2.1.1 Resistance to draught for boilers not intended to be installed in a partially
protected place
The flames shall be stable under the test conditions of 4.4.2.2.1.1.
3.4.2.2.1.2 Resistance to draught for boilers intended to be installed in a partially
protected place
The flames shall be stable under the test conditions of 4.4.2.2.1.2."
3.5.1 General
Add the following text:
" For boilers intended to be installed in a partially protected place, the devices shall operate correctly at the
temperatures to which they are subjected in the boiler, that is in operation at the maximum and minimum
ambient temperature declared by the manufacturer."
Add a new sub-clause, as follows:
" 3.13 Frost protection system for boilers intended to be installed in a partially protected
place
Under the test conditions of 4.13 the frost protection system, if any, shall act.
The temperature of the water shall remain above 0,5 °C at any point in the boiler during the test of 4.13."
Add a footnote with the following text after the wording "…. if any….":
" Boilers with minimum installation temperatures greater than 0 °C do not need a frost protection system."
Make at the end of 3.13 a
...

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Replace the second paragraph by the following text :
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Replace the 2nd dash of the third paragraph by the following text :
"- condensing boilers;"
Delete the last but one paragraph of EN 303-3 :
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CEN
EN 15502-2-1:2012/FprA1(Amendment)
Gas-fired central heating boilers - Part 2-1: Specific standard for type C appliances and type B2, B3 and B5 appliances of a nominal heat input not exceeding 1 000 kW
SIST EN 15502-2-1:2013/kFprA1:2016

When final draft in CCMC - Double check that a decision (to submit to FV) is taken both by CEN/TC 166 and CEN/TC 109 - See CEN/BT Decision 72/2014

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