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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Withdrawn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
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/A2:1997/AC:2006 - 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
Corrects
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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EN 297:1997/A2:1997/AC:2006EN 297:1997/A2:1997/AC:2006
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Corrigendum
EN 297:1997/A2:1997/AC:2006
English, French and German language
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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



SIST EN 297:1997/A2:1997/AC:2006



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



EN 297:1994/A2:1996/AC:2006 (E/F/D) 2 English version Replace Table 12 by the following: Table 12 – Calculation of the useful part load efficiency Conditions of operation Heat input Cycle time (s)
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.
SIST EN 297:1997/A2:1997/AC:2006



EN 297:1994/A2:1996/AC:2006 (E/F/D) 3 Replace Table 13 by the following:
Table 13 – Symbols and quantities needed to calculate the efficiency at part load Operational phases of the main burner Heat input kW Operational time s Measured values at 50 °C
efficiency % Full rate Q1 t1 η1 Reduced rate Q2 t2 η2 Reduced rate > 0,3 Q1 Q21 t21 η21 Reduced rate < 0,3 Q1 Q22 t22 η22 Controlled off Q3 t3 Standby losses Ps (kW) SIST EN 297:1997/A2:1997/AC:2006



EN 297:1994/A2:1996/AC:2006 (E/F/D) 4 Version française Remplacer le tableau 12 par le suivant: Tableau 12 – Détermination du rendement utile à charge partielle Conditions de fonctionnement Débit calorifique Temps de cycle (s) Mesures Rendement utile (%) 1 Débit réduit 30 % QQ2n=⋅03, t2600= η2 ηu = η2 2 Plein débit n1QQ= 1) t Q -
QQ - Q11313180600= η1 u100ηη=×111333113310008 Qt + , Qt - PtQt + Qts
Arrêt par régulation Q3 = brûleur d'allumage permanent 13600tt−= Ps
3 Débit réduit n213,0QQ⋅> t21 =Q - QQ
- Q 321321600180 η21 10080100332121333212121u×=tQ + tQtP - tQ , + tQ sηη
Arrêt par régulation Q3 = brûleur d'allumage permanent 213600tt−= Ps
4 Plein débit Q1 = Qn 1) t1 =180600122122 Q -
QQ - Q η1 uηηη=×11122222211222210010010
...

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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”.
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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.
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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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