BS EN 303-4-1999 供暖锅炉.带强制通风燃烧器的供暖锅炉.最大操作压力3巴、最高输出达70kW的带强制通风燃油器的锅炉的特殊要求.术语、特殊要求、试验和标记

标准号：BS EN 303-4-1999
中文标准名称：供暖锅炉.带强制通风燃烧器的供暖锅炉.*大操作压力3巴、*高输出达70kW的带强制通风燃油器的锅炉的特殊要求.术语、特殊要求、试验和标记
英文标准名称：Heating boilers - Heating boilers with forced draught burners - Heating boilers with forced draught burners - Special requirements for boilers with forced draught oil burners with outputs up to 70 kW and a maximum operating pressure of 3 bar - Terminology
标准类型：J98
发布日期：1999/8/15 12:00:00
实施日期：1999/8/15 12:00:00
中国标准分类号：J98
国际标准分类号：01.040.91;91.140.10
适用范围：This standard is applicable to heating boilers with forced draught oil burners up to a nominal heat output of 70 kW. They are operated, either with negative pressure (natural draught boiler) or with positive pressure (pressurized boiler) in the combustion chamber, in accordance with the boiler manufacturer's instructions. This standard specifies the necessary terminology, the requirements on the materials and testing of them, and marking requirements for heating boilers. The boilers are suitable for open vented systems up to a maximum allowable pressure of 1 bar (class 1 pressure) and open and closed water systems up to a maximum allowable pressure of 3 bar (class 2 pressure). The boilers are capable of operating with either conventional flues or low level discharge flues as specified by the boiler manufacturer. The boilers are provided as matched units with factory fitted burners for burning kerosene or gas oil. When using a low level flue gas discharge only kerosene may be used (see annex B). The requirements of this standard apply to heating boilers which are tested on an authorized test rig in accordance with EN 304 and annex B of this standard. Boilers in accordance with this standard are designed for the heating of central heating installations in which the heat carrier is water, and the temperature of which is restricted to 95 ℃ at normal operating conditions. For boilers with a built-in or attached water heater (storage or continuous flow heater) this standard only applies to the parts of the water heater which are necessarily subject to the operating conditions of the heating boiler (heating part). This standard does not apply to gas boilers with atmospheric burners, boilers for solid fuels, oil or gas fired condensation boilers, boilers with oil vaporization burners and low temperature boilers. For these boilers there are further requirements. NOTE Low temperature boilers are those operating with a (water) variable temperature up to 40 ℃ or less, or those which cannot be set at a temperature higher than 55 ℃.