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CJ/T 421-2013 English PDF (CJT421-2013)

CJ/T 421-2013 English PDF (CJT421-2013)

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CJ/T 421-2013: Electronic controller of household gas burning appliances

This Standard specifies terms and definitions, classification, structure, requirements, test methods, inspection rules, designation, installation and operation instructions, packaging, transportation and storage of electric controller for household gas burning appliances that use urban gas specified in GB/T 13611. This Standard applies to production and inspection of electric controller for household gas burning appliances.
CJ/T 421-2013
ICS 91.140
P 45
PROFESSIONAL STANDARD
OF THE PEOPLE REPUBLIC OF CHINA
Replace CJ/T 3074-1998
Electronic controller of household gas burning
appliances
ISSUED ON. FEBRUARY 28, 2013
IMPLEMENTED ON. JUNE 01, 2013
Issued by. Ministry of Housing and Urban-Rural Development of the
PEOPLE Republic of China
Table of Contents
Foreword ... 3
1 Scope ... 5
2 Normative references ... 5
3 Terms and definitions ... 7
4 Classification ... 10
5 Structure ... 10
6 Requirements ... 12
7 Test methods ... 13
8 Inspection rules ... 19
9 Designation, installation and operation instructions ... 21
10 Packaging, transportation and storage ... 22
Annex A (Normative) Functional module of combustion control ... 24
Annex B (Normative) Combustion product discharge functional module ... 29 Annex C (Normative) Reset functional module ... 32
Annex D (Normative) The gas shutoff functional module ... 34
Annex E (Normative) Temperature control function block ... 36
Annex F (Normative) The failure control technologies and measures of the functional safety-related systems ... 39
Annex G (Normative) Electromagnetic compatibility ... 40
Annex H (Normative) Battery power controller ... 47
Annex I (Normative) The fault modes of the electric/electronic components ... 50 Bibliography ... 55
Foreword
This Standard was drafted according to the rules specified in GB/T 1.1-2009. This Standard replaces CJ/T 3074-1998 Electronic Controller of Household Gas Burning Appliances.
This Standard is the revision of CJ/T 3074-1998 Electronic Controller of Household Gas Burning Appliances, and the main technical changes, compared with CJ/T 3074-1998, are as follows.
a) ADD the controller classification, DELETE the content of ?€?model number?€? (see Chapter 4, Chapter 4 in 1998 version);
b) SUPPLEMENT the controller structure design requirements and circuit structure requirements for internal fault protection (see Chapter 5; 5.3 in 1998 version); c) SUPPLEMENT the electrical safety and electromagnetic compatibility requirements (see 6.5, 6.6, Chapter 5 in 1998 version);
d) MODIFY the requirements for controller function and divided into different modules requirements according to function (see 6.1, 5.1, 5.2 in 1998 version); e) MODIFY the requirements for thermal stress, continuous operating performance and internal fault protection (see 6.2, 6.3, 6.4; 5.1 in 1998 version); f) MODIFY the special requirements for ?€?battery-powered controller?€? (see Annex H, Chapter 5 in 1998 version);
g) DELETE the ?€?salt fog test?€? and ?€?vibration resistance test?€? (see 5.1 in 1998 version). In order to maintain consistency with GB 16914-2012 Technical Condition for Safety of Gas Burning Appliances, this Standard provides corresponding table in Annex J to show those provisions in this Standard that support basic requirements of GB 16914-2012. This Standard was proposed by Standard Rating Institute of Ministry of Housing and Urban-rural Development.
This Standard is under jurisdiction of Gas Technical Committee for Standardization of the Ministry of Housing and Urban-rural Development.
This Standard was drafted by organizations. Guangdong Vanward New Electric Co., Ltd., North China Municipal Engineering Design and Research Institute, Guangdong Macro Gas Appliance Co., Ltd., Qingdao Economic and Technological Development Zone Haier Water Heater Co., Ltd., Sakura Bath and Kitchen Products (China) Co., Ltd., A.O. Smith (China) Water Heater Co., Ltd., Chengdu Qianfeng Electronic Co., Ltd., Zhejiang Dafeng Technology Co., Ltd., Guangdong Baiwei Electronics Co., Ltd., Beijing Viessmann Heating Technology Co., Ltd., Vaillant (Wuxi) Heating Equipment Co., Ltd., BSH Electrical Appliances (Jiangsu) Co., Ltd., Guangdong Huamei Junda Electric Appliances Co., Ltd., and Guangdong Midea Kitchen and Bathroom Appliance Manufacturing Co., Ltd. Main drafters of this Standard. Zhong Jiasong, Chen Bihua, Zhang Jinhuan, Yu Shaoyan, Zhang Wei, Wu Jianfeng, Qiu Bu, Zhu Ningdong, Jiao Yongfan, Shu Chao, Feng Tao, Hu Jian, Liu Songhui, Zhang Jianming, and Liang Guorong.
The previous version of the standard replaced by this Standard is as follows. -- CJ/T 3074-1998.
Electronic controller of household gas burning
appliances
1 Scope
This Standard specifies terms and definitions, classification, structure, requirements, test methods, inspection rules, designation, installation and operation instructions, packaging, transportation and storage of electric controller (hereinafter referred as the controller) for household gas burning appliances that use urban gas specified in GB/T 13611. This Standard applies to production and inspection of electric controller for household gas burning appliances.
2 Normative references
The articles contained in the following documents have become part of this Standard when they are quoted herein. For the dated documents so quoted, all the modifications (Including all corrections) or revisions made thereafter shall be applicable to this Standard.
GB/T 191 Packaging - Pictorial marking for handling of goods (GB/T 191-2008, ISO 780. 1997, MOD)
GB/T 2828 (All parts) Sampling procedures for inspection by attributes
GB 4706.1-2005 Household and similar electrical appliances-Safety - Part 1. General requirements (IEC 60335-1. 2004 (Ed4.1), IDT)
GB/T 13611 Classification and essential property of city gas
GB/T 14004 Fixed capacitors for use in electronic equipment - Part 6. Sectional specification fixed metallized polycarbonate film dielectric d.c. capacitors (GB/T 14004-1992, idt IEC 60384-6. 1987)
GB/T 14472 Fixed capacitors for use in electronic equipment - Part 14. Sectional specification Fixed capacitors for electromagnetic interference suppression and connection to the supply mains (GB/T 14472-1998, idt IEC 60384-14. 1993) GB 14536.1-2008 Automatic electrical controls for household and similar use - Part 1. General requirements (IEC 60730-1. 2003 (Ed3.1), IDT)
GB 14536.6-2008 Automatic electrical controls for household and similar use - Particular requirements for automatic electrical burner control systems (IEC 60730-2-5. 2004, IDT) GB/T 17626.2 Electromagnetic compatibility (EMC) - Testing and measurement techniques - Electrostatic discharge immunity test (GB/T 17626.2-2006, IEC 61000-4-2. 2001, IDT)
GB/T 17626.3 Electromagnetic compatibility - Testing and measurement techniques - Radiated radio-frequency electromagnetic field immunity test (GB/T 17626.3-2006, IEC 61000-4-3. 2002, IDT)
GB/T 17626.4 Electromagnetic compatibility - Testing and measurement techniques - Electrical fast transient/burst immunity test (GB/T 17626.4-2008, IEC 61000-4-4. 2004, IDT)
GB/T 17626.5 Electromagnetic compatibility - Testing and measurement techniques - Surge immunity test (GB/T 17626.5-2008, IEC 61000-4-5. 2005, IDT)
GB/T 17626.6 Electromagnetic compatibility - Testing and measurement techniques - Immunity to conducted disturbances induced by radio-frequency fields (GB/T 17626.6-2008, IEC 61000-4-6. 2006, IDT)
GB/T 17626.8 Electromagnetic compatibility (EMC) - Part 4-8. Testing and measurement techniques - Power frequency magnetic field immunity test (GB/T 17626.8-2006, IEC 61000-4-8. 2001, IDT)
GB/T 17626.11 Electromagnetic compatibility - Testing and measurement techniques - Voltage dips, short interruptions and voltage changes immunity tests (GB/T 17626.11-2008, IEC 61000-4-11. 2004, IDT)
GB/T 17626.28 Electromagnetic compatibility (EMC) - Testing and measurement techniques - Variation of power frequency immunity test (GB/T 17626.28-2006, IEC 61000-4-28. 2001, IDT)
GB 18802.1 Low-voltage surge protective devices - Part 1. Surge protective devices connected to low-voltage power distribution systems - Requirements and tests (GB 18802.1-2011, IEC 61643-1. 2005, MOD)
GB 19212.7 Safety of transformers, reactors, power supply units and similar products for supply voltages up to 1 100 V - Part 7. Particular requirements and test for safety isolating transformers and power supply units incorporating safety isolating transformers (GB 19212.7-2012, IEC 61558-2-6. 2009, IDT)
GB/T 20438.2-2006 Functional safety of electrical/electronic/programmable electronic safety-related systems - Part 2. Requirements for electrical/electronic/programmable electronic safety-related systems (IEC 61508-2. 2000, IDT)
GB/T 20438.7-2006 Functional safety of electrical/electronic/programmable electron...

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