QC/T 1177-2022 English PDF (QCT1177-2022)

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QC/T 1177-2022: Condenser for automotive air conditioning
QC/T 1177-2022
QC
AUTOMOTIVE INDUSTRY STANDARD
OF THE PEOPLE’S REPUBLIC OF CHINA
ICS 43.040.60
CCS T 26
Condenser for automotive air conditioning
ISSUED ON: APRIL 08, 2022
IMPLEMENTED ON: OCTOBER 01, 2022
Issued by: Ministry of Industry and Information Technology of the People's
Republic of China
Table of Contents
Foreword ... 6
1 Scope ... 7
2 Normative references ... 7
3 Terms and definitions ... 7
4 Technical requirements ... 8
5 Test methods ... 11
6 Inspection rules ... 15
7 Marks, packaging, transportation and storage ... 16
Foreword
This document was drafted in accordance with the rules given in GB/T 1.1-2020
"Directives for standardization - Part 1: Rules for the structure and drafting of
standardizing documents".
This document was proposed by and shall be under the jurisdiction of National
Technical Committee on Automobile of Standardization Administration of China
(SAC/TC 114).
The drafting organizations of this document: Longquan Industrial Innovation Service
Center, Automobile Air Conditioning Committee of China Association of Automobile
Manufacturers, Shanghai Kallang Songzhi Automotive Air Conditioning Co., Ltd.,
Longquan Huibo Technology Co., Ltd., Zhejiang Longteng Air Conditioning Co., Ltd.,
South Intel Air Conditioning Co., Ltd., Air Conditioning International (Shanghai ) Co.,
Ltd., Dongfeng Motor Group Co., Ltd. Technology Center, Zhejiang University,
Chongqing Chaoli High-Tech Co., Ltd., Zhejiang Xinjin Air Conditioning Equipment
Co., Ltd., Shanghai Tianmiao Air Treatment Equipment Co., Ltd., Shanghai Satake
Cooling and Heat Control Technology Co., Ltd., Technical Institute of Physics and
Chemistry, Chinese Academy of Sciences, Jilin University, Shenyang Ziweiheng
Testing Equipment Co., Ltd., Tianjin Gertes Testing Equipment Technology
Development Co., Ltd., Shenyang Huifuxiang Precision Machinery Co., Ltd., Yuxin
Automobile Thermal Management Technology Co., Ltd., Hangzhou Three Hua
Research Institute Co., Ltd., Zhongyuan Institute of Technology, Zhengzhou Kelin
Automotive Air Conditioning Co., Ltd., Yinbang Metal Composite Materials Co., Ltd.,
Wuhu Tonglian Auto Parts Co., Ltd., China FAW Group Co., Ltd. Research and
Development Institute, China Automotive Research Institute Inspection Center (Tianjin)
Co., Ltd., Dongfeng Motor Co., Ltd., BYD Auto Industry Co., Ltd., Helong Shuanghao
High-tech Co., Ltd., Zhejiang Lantong Air Conditioning Equipment Co., Ltd., Zhejiang
Innovation Automobile Air Conditioning Co., Ltd.
Main drafters of this document: Xiong Shusheng, Ye Jun, Xue Qingfeng, Guo Guoqi,
Qin Feng, Tong Guohai, Sun Lei, Yang Jinhui, Shen Jie, Jing Xiaoping, Zhou Linsen,
Ye Fangping, He Lijiang, Fan Liqun, Zou Huiming, Li Ming, Zhang Jinsheng, Cai
Zhixiong, Liu Hui, Chen Yong, Wu Zhaosu, Dong Junqi, Ji Liyou, Li Peng, Ji Zhihao,
Liu Liu, Xie Yanan, Liu Zhao, Zhou Guanghui, Shi Hongchen, Zhang Xiaojun, Bian
Jiachen, Xu Minli, Gao Yanan, He Genping, Chen Xuefeng, Chen Dairong, Xu Minwu,
Ye Weifeng, Ye Jianjie, Zhang Li.
This document is issued for the first time.
Condenser for automotive air conditioning
1 Scope
This document specifies the technical requirements, test methods, inspection rules and
marks, packaging, transportation and storage of condensers for automotive air
conditioning (condensers for short).
This document applies to air-cooled condensers for exterior use, heat pump type interior
air-cooled condensers and air-cooled condensers with liquid storage tanks using HFC-
134a and HFO-1234yf as refrigerants.
2 Normative references
The following referenced documents are indispensable for the application of this
document. For dated references, only the edition cited applies. For undated references,
the latest edition of the referenced document (including any amendments) applies.
GB/T 191, Packaging and storage marks
GB/T 6287, Connecting devices - Flat quick-connect terminations for electrical
copper conductors - Safety requirements
GB/T 10125, Corrosion tests in artificial atmospheres - Salt spray tests
GB/T 21361, Motor vehicle air-conditioning unit
3 Terms and definitions
For the purposes of this document, the terms and definitions defined in GB/T 21361 as
well as the followings apply.
3.1 condenser
A heat exchanger that cools and condenses gaseous refrigerant into a liquid state.
3.2 stable state
During the test, the state that the fluctuation range of the relevant test parameters is less
than the specified value.
3.3 heat exchange
Operating under the specified test conditions, the heat dissipated into the air by the
condenser per unit time.
3.4 air pressure drop
Operating under the specified test conditions, the pressure difference1 between the air
inlet surface and the air outlet surface of the condenser.
3.5 refrigerant pressure drop
Operating under the specified test conditions, the pressure difference between the
refrigerant inlet and outlet of the condenser.
3.6 subcooling condenser
A heat exchanger that cools the high-temperature and high-pressure gaseous refrigerant
entering the condenser into a high-temperature and high-pressure liquid refrigerant, and
the liquid refrigerant at the outlet of the condenser has a certain degree of subcooling.
4 Technical requirements
4.1 Dimensional tolerance and appearance requirements
Inspect according to 5.1. The dimensional tolerance and appearance requirements of
the product shall comply with the agreement between the supplier and the purchaser.
4.2 Heat exchange, air pressure drop and refrigerant pressure drop
Test according to 5.2. The air side heat exchange, refrigerant side heat exchange, air
pressure drop and refrigerant pressure drop of the condenser shall be in accordance with
the agreement between the supplier and the purchaser.
4.3 Airtight performance
4.3.1 Airtight performance of helium test
Carry out airtight performance test of helium test according to 5.3.1. The helium
leakage rate of the product shall not be greater than 1×10-3 Pa·L/s (refrigerant
equivalent leakage rate is 2 g/y).
4.3.2 Airtight performance of water test
Carry out airtight performance test of water test according to 5.3.2. The product shall
be free of air bubbles.
4.4 Residual impurities in the inner cavity
1 Pressures in this document are gauge pressures unless otherwise specified.
Carry out the test according to 5.4. The mass of residual impurities in the product cavity
shall not exceed 20 mg/m2. The diagonal outer diameter of particles shall not be greater
than 0.2mm.
4.5 Residual water amount in the inner cavity
Carry out the test according to 5.5. The residual water amount in the inner cavity of the
product shall not exceed 40 mg/m2.
4.6 Pressure resistance
Carry out the test according to 5.6. The product shall be free from damage and abnormal
deformation and meet the requirements of 4.3.2.
4.7 Burst pressure
Carry out the test according to 5.7. The product shall not break under the pressure of
8.8 MPa.
4.8 Vacuum resistance
Carry out the test according to 5.8. The product shall be free from leakage, damage and
abnormal deformation. The pressure rise rate after the test shall not exceed 0.5 kPa/min.
4.9 Pressure alternating performance
Carry out the test according to 5.9. The product shall have no abnormal deformation or
crack and meet the requirements of 4.3.2.
4.10 Vibration resistance
Carry out the test according to 5.10. The product shall ...