EN 297:1994/A2:1996/AC:2006
(Corrigendum)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
TC - Replace Tables 12 and 13
Heizkessel für gasförmige Brennstoffe - Heizkessel des Typs 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 equipées de brûleurs atmosphériques dont le débit calorifique nominal est inférieur ou égal à 70 kW
Plinski kotli za centralno gretje – Tipa B11 in B11BS z atmosferskimi gorilniki z imensko močjo do vključno 70 kW – Popravek AC k dopolnilu A2
General Information
- Status
- Withdrawn
- Publication Date
- 06-Jun-2006
- Withdrawal Date
- 20-Jan-2026
- 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
- Start Date
- 30-Jul-2014
- Completion Date
- 28-Jan-2026
Relations
- Effective Date
- 06-Aug-2014
- Effective Date
- 08-Jun-2022
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Frequently Asked Questions
EN 297:1994/A2:1996/AC:2006 is a corrigendum published by the European Committee for Standardization (CEN). Its full title is "Gas-fired central heating boilers - Type B11 and B11BS boilers fitted with atmospheric burners of nominal heat input not exceeding 70 kW". This standard covers: TC - Replace Tables 12 and 13
TC - Replace Tables 12 and 13
EN 297:1994/A2:1996/AC:2006 is classified under the following ICS (International Classification for Standards) categories: 91.140.10 - Central heating systems. The ICS classification helps identify the subject area and facilitates finding related standards.
EN 297:1994/A2:1996/AC:2006 has the following relationships with other standards: It is inter standard links to EN 15502-2-2:2014, EN 297:1994. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
EN 297:1994/A2:1996/AC:2006 is associated with the following European legislation: EU Directives/Regulations: 2009/142/EC, 90/396/EEC; Standardization Mandates: M/BC/CEN/89/6. When a standard is cited in the Official Journal of the European Union, products manufactured in conformity with it benefit from a presumption of conformity with the essential requirements of the corresponding EU directive or regulation.
EN 297:1994/A2:1996/AC:2006 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Heizkessel für gasförmige Brennstoffe - Heizkessel des Typs B11 und B11BS mit atmosphärischen Brennern mit einer Nennwärmebelastung kleiner als oder gleich 70 kWChaudieres de chauffage central utilisant les combustibles gazeux - Chaudieres des types B11 et B11BS equipées de bruleurs atmosphériques dont le débit calorifique nominal est inférieur ou égal a 70 kWGas-fired central heating boilers - Type B11 and B11BS boilers fitted with atmospheric burners of nominal heat input not exceeding 70 kW97.100.20Plinski grelnikiGas heaters91.140.10Sistemi centralnega ogrevanjaCentral heating systemsICS:Ta slovenski standard je istoveten z:EN 297:1994/A2:1996/AC:2006SIST EN 297:1997/A2:1997/AC:2006en,fr,de01-september-2006SIST EN 297:1997/A2:1997/AC:2006SLOVENSKI
STANDARD
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 297:1994/A2:1996/ACJune 2006Juin 2006Juni 2006ICS 91.140.10English versionVersion FrançaiseDeutsche FassungGas-fired central heating boilers - Type B11 and B11BS boilers fitted withatmospheric burners of nominal heat input not exceeding 70 kWChaudières de chauffage central utilisantles combustibles gazeux - Chaudières destypes B11 et B11BS equipées de brûleursatmosphériques dont le débit calorifiquenominal est inférieur ou égal à 70 kWHeizkessel für gasförmige Brennstoffe -Heizkessel des Typs B11 und B11BS mitatmosphärischen Brennern mit einerNennwärmebelastung kleiner als odergleich 70 kWThis corrigendum becomes effective on 7 June 2006 for incorporation in the three official languageversions of the EN.Ce corrigendum prendra effet le 7 juin 2006 pour incorporation dans les trois versions linguistiquesofficielles de la EN.Die Berichtigung tritt am 7.Juni 2006 zur Einarbeitung in die drei offiziellen Sprachfassungen der ENin Kraft.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2006 CENAll rights of exploitation in any form and by any means reserved worldwide for CEN national Members.Tous droits d'exploitation sous quelque forme et de quelque manière que ce soit réservés dans le monde entier auxmembres nationaux du CEN.Alle Rechte der Verwertung, gleich in welcher Form und in welchem Verfahren, sind weltweit den nationalen Mitgliedernvon CEN vorbehalten.Ref. No.:EN 297:1994/A2:1996/AC:2006 D/E/FSIST EN 297:1997/A2:1997/AC:2006
Meas. Useful efficiency (%) 1 30 % reduced rate QQ2n=⋅03, t2600= η2 ηu = η2 2 Full rate n1QQ= 1) t Q -
QQ - Q11313180600=
η1 u100ηη=×111333113310008 Qt + , Qt - PtQt + Qts
Controlled off Q3 = permanent ignition burner 13600tt−= Ps
3 Reduced rate n213,0QQ⋅> t21 =Q - QQ 600 - Q 180321321
η21 10080100332121333212121u×=tQ + tQtP - tQ , + tQ sηη
Controlled off Q3 = permanent ignition burner 213600tt−= Ps
4 Full rate Q1 = Qn 1) t1 =180600122122 Q -
QQ - Q
η1 uηηη=×111222222112222100100100 Qt + () QtQt + Qt
Reduced rate QQ22n<⋅03, tt221600=− η22
5 Reduced rate 1 QQ21n>⋅03, t21=180 Q - 600 QQ - Q21222122
η21 100 +
100 +
10022222121222222212121×=tQtQtQtQu
Reduced rate 2 QQ22n<⋅03, tt2221600=− η22
6 Full rate Reduced rate Q1 = Qn 1) Q2 t1 = measured value (see annex Q)
t2 =Q - QQ)t - (600 - Q)t - (180323111 η1 η2 ηηηu100100=×11122233311223308100Qt +Qt +, Qt -PtQt + Qt + Qts
Controlled off Q3 = permanent ignition burner )(600213ttt+−= Ps
1) Qn is replaced by the arithmetic mean Qa of the maximum and minimum heat input for range-rated boilers.
Table 13 – Symbols and quantities needed to calculate the efficiency at part l
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