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This Part 2-1 of EN 15502 refers to gas-fired central heating boilers from the types C1 to C9 and the types B2, B3 and B5 according to the classification in CEN/TR 1749:2009 and includes modular boilers that have a nominal heat input (on the basis of net calorific value) not exceeding 1 000 kW. The appliances of the types B21, B31, B51 are not covered by this standard. This European Standard is to be used in conjunction with the superior standard EN 15502-1.
This document replaces DIN EN 15420:2011-11 , DIN EN 483:2000-06 .
This document has been replaced by: DIN EN 15502-2-1:2017-09 .