Heating boilers - Heating boilers with forced draught burners. Terminology, general requirements, testing and marking Ingestion-build-256245 Cylindrical barrelled delivery spools according

Cylindrical barrelled delivery spools according to BS EN 60264-2-3 shall be identified by dimension d1 as specified in IEC 60264-2-1

Identification and terms and definitions

and twisted pair cables

Fundamentals and vocabulary about

Heating boilers - Heating boilers with forced draught burners. Terminology, general requirements, testing and marking Ingestion-build-256245 Cylindrical barrelled delivery spools according1 Scope This European Standard applies to boilers used for central heating (heating boilers) with forced draught burners with a nominal heat output not exceeding 1 000 kW, which are operated either with negative pressure (natural draught boilers) or with positive pressure (pressurized boiler) in the combustion chamber, in accordance with the boiler instructions. This European Standard specifies the necessary terminology, the requirements on the