CJ/T 421-2013 PDF English
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Electronic controller of household gas burning appliances
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CJ/T 421-2013: PDF in English (CJT 421-2013) CJ/T 421-2013
ICS 91.140
P 45
PROFESSIONAL STANDARD
OF THE PEOPLE’S 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’s 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 & Research Institute, Guangdong Macro Gas
Appliance Co., Ltd., Qingdao Economic & Technological Development Zone Haier Water
Heater Co., Ltd., Sakura Bath & 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 & 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...
......
Source: Above contents are excerpted from the PDF -- translated/reviewed by: www.chinesestandard.net / Wayne Zheng et al.
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