制冷系统和热泵. 安全与环境要求. 第1部分: 定义, 分类和选择标准

[中文适用范围]： 本文档规定了制冷系统的安全要求，提供了环境保护的指导，并建立了制冷系统的操作、维护和维修程序以及制冷剂回收程序。本部分（ISO 5149-1）规定了适用于制冷系统和热泵的分类和选择标准。这些分类和选择标准用于ISO 5149-2、ISO 5149-3和ISO 5149-4。本部分适用于：a) 所有尺寸的制冷系统，包括固定式和移动式，包括热泵；b) 二次冷却或加热系统；c) 制冷系统的位置；d) 在本部分ISO 5149采用后替换的部件和添加的部件，如果它们在功能和容量上不完全相同。本部分适用于固定式或移动式系统，但不包括由特定产品标准（如ISO 13043和SAE J 639）涵盖的车辆空调系统。本部分适用于新制冷系统、现有系统的扩建或修改，以及转移到另一个地点并运行的已用系统。本部分也适用于将系统转换为另一种制冷剂的情况。 [外文原描述]： ISO 5149-1:2014 specifies the requirements for the safety of persons and property, provides guidance for the protection of the environment, and establishes procedures for the operation, maintenance, and repair of refrigerating systems and the recovery of refrigerants. ISO 5149-1:2014 specifies the classification and selection criteria applicable to the refrigerating systems and heat pumps. These classification and selection criteria are used in ISO 5149‑2, ISO 5149‑3, and ISO 5149‑4. ISO 5149-1:2014 applies to: a) refrigerating systems, stationary or mobile, of all sizes including heat pumps; b) secondary cooling or heating systems; c) the location of the refrigerating systems; and d) replaced parts and added components after adoption of this part of ISO 5149 if they are not identical in function and in the capacity. ISO 5149-1:2014 applies to fixed or mobile systems, except to vehicle air conditioning systems covered by a specific product standard, e.g. ISO 13043 and SAE J 639. ISO 5149-1:2014 is applicable to new refrigerating systems, extensions or modifications of already existing systems, and for used systems, being transferred to and operated on another site. ISO 5149-1:2014 also applies in the case of the conversion of a system to another refrigerant. Systems containing refrigerants which are not listed in ISO 817 are not covered in ISO 5149-1:2014.