TS 9876 prEN 303-4
Heating boilers-Heating boilers with forced draught burner-Part 4: With outputs up to 70 kW and a maximum operating pressure of 3 bar-Terminology, special requirements, testing and marking
This standard applies to heating boilers with burneis using fans up to a nominal heat output 70 kW. They are opareted, elther with negative pressure (natural draught boiler) or with positive pressure (pressurised boiler) in the combustion chambar, in accordance with the boiler manufacturer’s instructions.
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About This Item
TS 9876 prEN 303-4 is a terminology, special requirements, testing and marking standard for heating boilers with forced draught burners. It addresses boilers with a nominal heat output up to 70 kW, operated in accordance with the boiler manufacturer’s instructions, and used in combustion chambers arranged as either positive-pressure or negative-pressure systems. As a Part 4 document, it belongs to a wider family of standards that treats a specific subset of boiler technology.
Technical framework covered by the standard
The key technical distinction here is between the fan-assisted burner and the pressure condition in the combustion chamber. Forced draught burners mechanically supply combustion air, which is a common approach in compact heating boilers where controlled combustion, stable flame formation and predictable operation are important. Positive-pressure and negative-pressure boilers differ in how the combustion space is managed relative to ambient pressure, so the standard groups these configurations under a shared technical vocabulary. In general technical context, this helps separate product design choices from the broader function of providing heat in small and medium heating systems.
Why terminology, inspection and marking matter
Terminology standards create a common language for manufacturers, testers and specifiers so that the same boiler components and performance concepts are understood consistently. Inspection and marking support identification and traceability, helping documentation match the product that is being described. In broader boiler practice, such standards are used to classify the appliance correctly, align product information with the intended operating conditions and reduce ambiguity in technical communication. This listing is withdrawn, but it still reflects the technical structure and vocabulary of this product family.
- Heating boilers up to a nominal heat output of 70 kW
- Fan-assisted / forced draught burner systems
- Positive-pressure or negative-pressure combustion-chamber arrangements
- Operation in accordance with the boiler manufacturer’s instructions
- Terminology, special requirements, testing and marking
- Publication Date: 18.09.1997
- Standard Status: H (İptal Edilmiş Standard/Withdrawn standard)
- Publisher: TSE
- Document Language: tr, en, fr, de
- ICS Classification: 01.040.91 Yapı Malzemeleri ve Yapılar (Terimler); 27.060.30 Kazanlar ve Isı Eşanjörleri ; 91.140.10 Merkezi Isıtma Sistemleri
- Pages: 30
- Source Standard: prEN 303-4:1994
- International Equivalents: prEN 303-4 (1994)EQV--; DIN EN 303-4(EQV)--; prEN 303-4:1994--
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