GB/T 21361-2017 English PDF (GBT21361-2017)

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GB/T 21361-2017: Motor vehicle air-conditioning unit
GB/T 21361-2017
GB
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 Contents
Foreword ... 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 ... 45 
Foreword
This Standard is drafted in accordance with stipulations in GB/T 1.1-2009.
This Standard serves as a replacement of GB/T 21361-2008 Motor Vehicle Air-
conditioning Unit. In comparison with GB/T 21361-2008, there are the following main
technical changes.
---The definition of refrigeration coefficient of performance is added (please refer
to 3.10);
---The requirements of radio disturbance characteristics and air quality are added
(please refer to 5.2);
---The requirement of operation test is modified (please refer to 5.5.2);
---The requirement of airtightness is modified (please refer to 5.5.1);
---The requirement of noise is modified (please refer to 5.5.10);
---The requirement of measuring grounding resistance is deleted (please refer to
5.6.4.3);
---The method of measuring the refrigerating capacity of motor vehicle air-
conditioning unit on the scene of usage is added (please refer to Appendix D).
This Standard was proposed by China Machinery Industry Federation.
This Standard shall be under the jurisdiction of National Technical Committee (238) on
Refrigeratory Equipment of Standardization Administration of China (SAC/TC 238).
The responsible drafting organizations of this Standard. Hefei General Machinery and
Electrical Products Inspection Institute, Shanghai SONGZ Automobile Air Conditioning
Co., Ltd., Hefei General Machinery Research Institute.
The participating drafting organizations of this Standard. Zhejiang Dun’an Artificial
Environment Co., Ltd., Nanjing Aotecar New Energy Technology Co., Ltd., EMERSON
Climate Technologies (Suzhou) Co., Ltd., Guangzhou JYAC Automobile Air
Conditioner, Suzhou Xin Tong Chuang Automobile Air Conditioning Co., Ltd., Zhejiang
Chunhui Industrial Group.
The main drafters of this Standard. Rongye, Qinfeng, Xie Hongxi, Cai Peiyu, Chen
Xiangji, Liuqiang, Ouyang Yong, Pengfei, Yang Chenguang, Wu Weixin.
The release of previous versions of the standard replaced by this Standard is as follows.
---GB/T 21361-2008.
Motor Vehicle Air-conditioning Unit
1 Scope
This 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 References
The 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 Materials
GB 9237-2001 Mechanical Refrigerating Systems Used for Cooling and Heating -
Safety Requirements
GB/T 13306 Plates
GB/T 18655 Vehicles, Boats and Internal Combustion Engines - Radio
Disturbance Characteristics - Limits and Methods of Measurement for the
Protection of On-board Receivers
GB/T 27630 Guideline for Air Quality Assessment of Passenger Car
JB/T 7249 Terminology of Refrigeration Equipment
SAE J 1627-1995 Performance Criteria for Electronic Refrigerant Leak Detectors
SAE J 1628 Technician Procedure for Using Electronic Refrigerant Leak Detectors
for Service of Mobile Air-conditioning Systems
3 Terms and Definitions
What 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.
3.2 Indirect Drive Air-conditioning Unit
Indirect drive air-conditioning unit refers to air-conditioning unit whose compressor is
driven by an independent auxiliary power.
3.3 Direct Drive Air-conditioning Unit
Direct drive air-conditioning unit refers to air-conditioning unit whose compressor is
driven by motor vehicle’s main power.
3.4 Air Enthalpy Difference
Air enthalpy difference refers to a method of measuring air conditioning unit’s capacity.
It measures air conditioning unit’s air supply parameter, air return parameter and
circulating air volume; determines air conditioning unit’s refrigerating capacity through
the product of air volume, air supply and air return enthalpy difference.
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.
NOTE. the unit of air flow rate is (m3/h).
3.7 Compressor Drive Power
Compressor drive power refers to the power consumed by driving the compressor
under stipulated refrigerating capacity and test conditions.
NOTE. the unit of compressor drive power is (W).
3.8 Accessory Electric Power
Accessory electric power refers to the total power of evaporator fan, condenser fan,
electromagnetic clutch and electronic control system of air conditioning unit under
stipulated refrigerating capacity and test conditions.
NOTE. the unit of auxiliary power consumption is (W).
3.9 Energy Efficiency Ratio; EER
Energy efficiency ratio refers to the ratio of air conditioning unit’s refrigerating capacity
to the compressor drive power under stipulated refrigerating capacity and test
conditions. <...