本欧洲标准适用于生产家用热水的太阳能支撑燃气电器。它适用于作为单一单位销售的系统或制造商完全指定的系统: - 气体输入不超过70kW;和 - 热水储存能力不超过500升;和 - 配备至少一个太阳能收集器;和 - 就太阳能液压回路而言，被认为是强制循环系统（根据EN ISO 9488:1999定义）。 本欧洲标准涵盖的电器在附件C中有所描述。 本欧洲标准不适用于热虹吸或集成收集器存储系统（根据EN ISO 9488:1999的定义）。 注意原则上，热虹吸太阳能预热系统和整体式收集器储存预热系统的能耗也可以根据本标准进行评估。为此目的的一个适当的程序是通过使用数字系统模型和根据ISO 9459-5的热太阳能系统性能参数来计算从热太阳能系统中取出的家用热水的温度水平，用于本标准中定义的参考条件。根据从商店取出的热水的温度水平，能量消耗

This European Standard is applicable to solar supported gas-fired appliances producing domestic hot water. It applies to a system marketed as single unit or a system fully specified by a manufacturer that: - has a gas heat input not exceeding 70 kW; and - has a hot water storage capacity not exceeding 500 l; and - is equipped with at least one solar collector; and - is, with regard to the solar hydraulic circuit, considered as a forced circulation system (definition according to EN ISO 9488:1999). The appliances covered by this European Standard are described in Annex C. This European Standard does not apply to thermo-siphon or integral collector storage systems (definitions according to EN ISO 9488:1999). NOTE In principle, the energy consumption of thermo-siphon solar preheat systems and integral collector storage preheat systems can also be assessed on the basis of this standard. One appropriate procedure for that purpose is to calculate the temperature level of the domestic hot water withdrawn from the thermal solar system for the reference conditions defined in this standard by using the numerical system model and the thermal solar system performance parameters according to ISO 9459-5. Based on the temperature level of the hot water withdrawn from the store the energy consumption of the gas appliance should be determined. This determination can either be done by means of calculations or by performing a test according to EN 13203-2 and using instead of the cold water inlet temperature the hot water temperature withdrawn from the store. This standard is not intended to assess the performance: - of the solar collector(s), which should comply with EN 12975-1 and EN 12975-2; and - thermal solar systems and components, which should comply with EN 12976-1 and EN 12976-2. (.)