ISO 13256的本部分涵盖加热和冷却系统，通常称为“水源热泵”这些系统通常包括一个带空气移动装置的室内盘管、一个压缩机和一个制冷剂-水或制冷剂-盐水热交换器。系统可以同时提供加热和冷却、仅冷却或仅加热功能。ISO 13256的本部分为工厂制造的住宅、商业和工业、电动、机械压缩型、水对水和盐水对水热泵建立了性能测试和评级标准。ISO 13256本部分中包含的测试和评级要求基于匹配组件的使用。 根据ISO 13256本部分的规定，设计用于一次应用的设备可能不适用于ISO 13256本部分涵盖的所有应用。ISO 13256的本部分不适用于单独使用的单个组件的测试和评级，也不适用于具有两个或两个以上室内部分连接到单个室外部分的单元。它不适用于ISO 5151、ISO 13253或ISO 13256-1中涵盖的热泵。关键词:水源热泵，热泵设备，热泵，热泵效率，热泵额定值，热泵容量，制冷量，制热量

This part of ISO 13256 covers heating and cooling systems which are generally referred to as "water-source heat pumps." These systems generally include an indoor coil with air-moving means, a compressor, and a refrigerant-to-water or refrigerant-to-brine heat exchanger. A system may provide both heating and cooling, cooling-only, or heating-only functions. This part of ISO 13256 establishes performance testing and rating criteria for factory-made residential, commercial and industrial, electrically driven, mechanical-compression type, water-to-water and brine-to-water heat pumps. The requirements for testing and rating contained in this part of ISO 13256 are based on the use of matched assemblies. Equipment designed for rating at one application under this part of ISO 13256 may not be suitable for rating at all applications covered in this part of ISO 13256. This part of ISO 13256 does not apply to the testing and rating of individual assemblies for separate use or to units having two or more indoor sections connected to a single outdoor section. It does not apply to heat pumps covered in ISO 5151, ISO 13253, or ISO 13256-1.Keywords:Water Source Heat Pumps, Heat Pump Equipment, Heat Pump, Heat Pump Efficiency, Heat Pump Rating, Heat Pump Capacity, Cooling Capacity, Heating Capacity