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GB/T 21361-2017: Motor Vehicle Air-conditioning Unit Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedure Status: Valid GB/T 21361: Historical versions
Similar standardsGB/T 21361-2017: Motor Vehicle Air-conditioning Unit---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT21361-2017GB NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 27.200 J 73 Replacing GB/T 21361-2008 Motor Vehicle Air-conditioning Unit Issued on. JULY 12, 2017 Implemented on. FEBRUARY 1, 2018 Issued by. General Administration of Quality Supervision, Inspection and Quarantine; Standardization Administration of the People’s Republic of China. Table of ContentsForeword... 3 1 Scope... 4 2 Normative References... 4 3 Terms and Definitions... 5 4 Models and Basic Parameters... 7 5 Requirements... 8 6 Test Methods... 12 7 Inspection Rules... 18 8 Marking, Packaging, Transportation and Storage... 19 Appendix A (Normative) Test Method of Refrigerating Capacity of Air Conditioning Unit... 22 Appendix B (Normative) Test Method of Noise of Air Conditioning Unit... 36 Appendix C (Normative) Test Method of Vibration of Air Conditioning Unit... 42 Appendix D (Informative) Test Method of Refrigerating Capacity of Air Conditioning Unit on the Site of Usage... 451 ScopeThis Standard specifies the terms, definitions, models, basic parameters, requirements, test methods, inspection rules, marking, packaging, transportation and storage of motor vehicle air-conditioning unit (hereinafter referred to as “air-conditioning unit”). This Standard is applicable to motor vehicle air-conditioning unit for the purpose of refrigeration. NOTE. please refer to GB/T 3730.1 for the definition of motor vehicle.2 Normative ReferencesThe following documents are indispensable to the application of this Standard. In terms of references with a specified date, only versions with a specified date are applicable to this Standard. The latest version (including all the modifications) of references without a specified date is also applicable to this Standard. GB/T 191 Packaging Pictorial Markings for Handling of Goods GB/T 3785.1-2010 Electroacoustics - Sound Level Meters - Part 1.Specifications GB 4706.32 Safety of Household and Similar Electrical Appliances - Particular Requirements for Heat Pumps, Air-conditioner and Dehumidifier GB 5226.1 Electrical Safety of Machinery - Electrical Equipment of Machines - Part 1.General Requirements GB/T 6388 Transport Package Shipping Mark GB 8410 Flammability of Automotive Interior Materials3 Terms and DefinitionsWhat is defined in JB/T 7249, and the following terms and definitions are applicable to this document. 3.1 Motor Vehicle Air-conditioning Unit Motor vehicle air-conditioning unit refers to an air-conditioning system that is constituted of compressor, condenser, throttle element, evaporator, draught fan and necessary control units. It is adopted to adjust the interior temperature and humidity in motor vehicle and provide comfortable environment to passengers. 3.5 Refrigerating Capacity Refrigerating capacity refers to the heat that air conditioning unit drains away from enclosed space, interior space or area of motor vehicle under stipulated refrigerating capacity and test conditions. NOTE. the unit of refrigerating capacity is (W). 3.6 Air Flow Rate Air flow rate refers to the volume flow rate of air that enters air conditioning unit within a unit time under stipulated refrigerating capacity and test conditions. 3.10 Refrigeration Coefficient of Performance; REER Refrigeration coefficient of performance refers to the ratio of air conditioning unit’s refrigerating capacity to the compressor drive power under stipulated engine speed. Refrigeration coefficient of performance shall be calculated in accordance with Formula (1).4 Models and Basic Parameters4.1 Models 4.1.1 In accordance with the drive mode of refrigerating compressor, it can be divided into. 4.1.2 In accordance with structural model of motor vehicle air conditioning unit, it can be divided into. 4.1.3 In accordance with the evaporator’s layout mode of motor vehicle air conditioning unit, it can be divided into. 4.1.4 In accordance with the air supply mode of motor vehicle air conditioning unit, it can be divided into. 4.2 Basic Parameters5 Requirements5.1 General Requirements 5.1.1 Air conditioning unit shall comply with the stipulation in this Standard; air conditioning unit shall be manufactured in accordance with drawings and technical documents that are approved through a stipulated procedure. 5.2 Requirements of Components and Materials 5.2.1 All the components and materials of air conditioning unit shall respectively comply with the stipulation in relevant standards; satisfy the requirements of functional performance and guarantee the safety. 5.3 Structural Requirements 5.3.1 The drainage structure of air conditioning unit shall be reliable. During the operation, condensation water and raindrops shall not leak into the car. The air outlet of air conditioning unit shall not spray with water. 5.4 Requirements of Assembly 5.4.1 Before assembly, the various components of the refrigerating system of air conditioning unit shall be clean and dry. 5.5 Performance Requirements 5.5.1 Air-tightness The test shall be conducted in accordance with Method a) in 6.3.1 or Method b) in 6.3.1. 5.5.2 Operation When the test is conducted in accordance with the method in 6.3.2, the assembly of the evaporator and the condenser shall be able to function normally. The safety protection device shall be sensitive and reliable; the motion of control components, such as temperature and electrical appliances, shall be normal. All the test items shall comply with the requirement in design.6 Test Methods6.1 Test Conditions 6.1.1 Please refer to Appendix A for the test device of air conditioning unit. 6.1.2 The working condition of the test shall comply with the stipulation in Table 1. 6.1.3 The speed of the compressor shall comply with the stipulation in Table 2. Table 2 -- Compressor Speed 6.1.4 The motor terminal voltage for the draught fan shall comply with the stipulation in Table 3. 6.2 General Requirements 6.2.1 All the tests of the air conditioning unit shall comply with the nominal voltage and nominal frequency on the plate. 6.2.2 In terms of the split type of air conditioning unit, the pipe that connects the indoor unit and the outdoor unit shall be tested in accordance with the full length or 10 m pipe provided by the manufacturer. 6.3 Test Methods 6.3.1 Air-tightness test 6.3.2 Operation test Test the operative condition of the assembly of the evaporator and the condenser; the sensitivity and reliability of safety protection devices. Test whether the motion of control components, such as temperature and electrical appliances, is normal. 6.3.10 Noise test Under nominal voltage and nominal frequency, test the noise of the air conditioning unit in accordance with the stipulation in Appendix B. 6.3.11 Vibration test Conduct the vibration test of the air conditioning unit in accordance with the stipulation in Appendix C. 6.3.12 Test of safety property of electrical appliance7 Inspection Rules7.1 Exit-factory Inspection Each air conditioning unit shall receive exit-factory inspection. Inspection items, technical requirements and test methods shall comply with the stipulation in Table 10. 7.2 Sampling Inspection 7.2.1 In sampling inspection, air conditioning unit samples shall be taken from products that are qualified in the exit-factory inspection. Inspection items and test methods shall comply with the stipulation in Table 10. 7.3 Model Inspection When there is significant improvement in new products or stereotyped products, or when the first set of products is released, model inspection shall be conducted. Inspection items shall comply with the stipulation in Table 10. Table 10 -- Inspection Items8 Marking, Packaging, Transportation and Storage8.1 Marking 8.1.2 Air conditioning unit shall have a mark that displays its operating status, such as an arrow of the draught fan’s rotation direction, indicating instrument and grounding mark, etc. 8.1.3 When exit-factory, each air conditioning unit shall be equipped with the following technical documents. 8.1.4 The code number of the standard being implemented shall be marked in a corresponding position (such as nameplate and product instruction, etc.). 8.2 Packaging 8.2.3 The packaging box of air conditioning unit shall have the following marks. 8.3 Transportation and Storage 8.3.1 During the transportation and storage, air conditioning unit shall not be collided, inclined or damaged by rain or snow. 8.3.2 Products shall be stored in a dry warehouse with good ventilation. ......Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al. 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