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SR EN 297+A2:2001

Gas-fired central heating boilers. Type B11 et B11BS boilers fitted with atmosferic burners of nominal heat input not exceeding 70 kW

This European Standard specifies the requirements and test methods for the construction, safety, fitness for purpose, rational use of energy, classification and marking of gas-fired central heating boilers, hereafter referred to as 'boilers'. This standard applies to type B11 and BB11BS boilers: - fitted with atmospheric burners; - that use gases corresponding to the three gas families and to the pressures stated in 4.1.4; - that have a nominal heat input not exceeding 70 kW (on net calorific value); - where the temperature of the water does not exceed 95 oC during normal operation; - where the maximum water-side operating pressure does not exceed 6 bar. This standard does not contain all the necessary requirements for: boilers: - intended to be installed in the open; - having multiple heating units with a single draught diverter; - with fan-assisted combustion; - of the condensing type; i- ntended to be connected to a common flue having mechanical extraction; - fitted with manual or automatic means of adjusting the air supply and/or adjusting the evacuation of the

Status : Withdrawn
Approval date : 5/23/2001
Publish date : 5/24/2001
Withdrawal date : 12/23/2014
Number of pages : 136
ICS : 27.060.30 Boilers and heat exchangers,91.140.10 Central heating systems
Technical Committee : 225 - Central heating boilers

Relations with other standards: