GB/T 39488-2020 in English
VALIDSafety and control devices for gas burners and gas-burning appliances—Particular requirements—Electronic type gas and air ratio control system
- Issued on:2020-11-19
- Implemented on:2021-10-01
- File Format:PDF
- Delivery:Via email within 5 business days
$359.00
《GB/T 39488-2020燃气燃烧器和燃烧器具用安全和控制装置 特殊要求 电子式燃气与空气比例控制系统》由333（住房和城乡建设部）归口，主管部门为住房和城乡建设部。
Introduction
Interpretation of the core content of the standard
This standard specifies the closed-loop control requirements of electronic gas and air ratio control systems (ERC) in gas combustion equipment, with a focus on:
- The system must include an electronic control module, dual actuators (gas/air conditioning unit) and feedback sensors
- The fault response time must not exceed the manufacturer's declared value
- The accuracy declaration must include parameters of sensors, regulators and other components (Appendix E)
Comparison of key technical requirements
| Project | ISO23552-1:2007 | GB/T39488-2020 |
|---|---|---|
| Applicable fuels | Gas/Oil | Gas only (GB/T13611) |
| Requirements for potentiometer | Not specified | Conductive plastic type requires IP5X protection (Appendix D) |
| Inspection rules | None | Added factory/type inspection (Chapter 7) |
Analysis of implementation points
Typical application scenarios
A gas wall-mounted boiler manufacturer should pay special attention when using the ERC system:
- The electronic control module needs to pass 250,000 start-up cycle tests (5.3.6.2)
- The position feedback potentiometer should be verified for mechanical durability at 60°C
- The electromagnetic compatibility test must meet the requirements of 6.3.9 of GB/T30597-2014
Background of Standard Evolution
The main adjustments when this standard is modified and adopted ISO23552-1 are:
- Delete fuel-related clauses and focus on urban gas applications
- Add the correspondence with GB16914-2012 (Appendix C)
- Strengthen the environmental adaptability requirements of electronic components (5.3.6.1)
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