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GB 18111-2021Gas storage water heater (English PDF)

燃气容积式热水器

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Issued by

State Administration for Market Regulation; Standardization Administration of China

Level / Type

National · Mandatory

Issue date

August 10, 2021

Implementation date

September 1, 2022

Scope

GB 18111-2021 is the English-translated version of 燃气容积式热水器.

GB 18111-2021 is the Chinese standard "Gas storage water heater".

Its scope clause reads: This standard specifies the terms and definitions, classification and model, materials, structure and safety of gas volumetric water heaters (hereinafter referred to as water heaters) Device, performance requirements, test methods, inspection rules, signs and instructions, packaging, transportation and storage.

This standard applies to gas volumetric water heaters with a rated thermal load of less than 100kW and a rated volume of less than 500L. The fuel gas referred to in this standard refers to artificial gas, natural gas and liquefied petroleum gas specified in GB/T 13611.

Its clauses include terms and definitions; classification and model; material, structure and safety device; performance requirements; test method; inspection rules; signs and instructions; packaging, transportation and storage.

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Document preview — GB 18111-2021

National Standard of the People's Republic of China

ICS: 91.140
Classification: P 45

Issued by: State Administration for Market Regulation; Standardization Administration of China

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Classification and model
4.1 Classification
4.2 Model
5 Material, structure and safety device
5.1 Material
5.2 Structure
5.3 Safety control device
5.4 Appearance
5.5 Special requirements for condensing gas volumetric water heaters
6 Performance requirements
6.1 Air tightness of the gas system
6.2 Accuracy of heat load
6.3 Combustion conditions
6.4 Structural tightness
6.5 Surface temperature rise
6.6 Heat resistance
6.7 Flue gas temperature
6.8 Hot water performance
6.9 Water temperature control device
6.10 Water tank capacity and drain valve
6.11 Hydrostatic pressure test
6.12 Pressure regulator
6.13 Ignition device
6.14 Exhaust hood strength
6.15 Exhaust/air inlet terminal
6.16 Spray test
6.17 Electrical safety
6.18 EMC safety
6.19 Vibration resistance
6.20 Condensate drainage
6.21 NOx content
7 Test method
7.1 Test conditions and water heater installation
7.2 Appearance and external structure inspection
7.3 Air tightness test of gas system
7.4 Heat load accuracy test
7.5 Combustion condition test
7.6 Structural leak test
7.7 Surface temperature rise test
7.8 Heat resistance test
7.9 Flue gas temperature test
7.10 Hot water performance test
7.11 Water temperature control device test
7.12 Water tank capacity and drain valve test
7.13 Hydrostatic pressure test
7.14 Performance test of pressure regulating device
7.15 Ignition device test
7.16 Exhaust hood strength test
7.17 Exhaust/air inlet terminal test
7.18 Spray test
7.19 Electrical safety test
7.20 EMC safety test
7.21 Vibration resistance test
7.22 Condensate discharge test
7.23 NOx content test
8 Inspection rules
8.1 Factory inspection
8.2 Type inspection
8.3 Inspection items and non-conformity classification
9 Signs and instructions
9.1 Sign
9.2 Instructions
10 Packaging, transportation and storage
10.1 Packaging
10.2 Transportation
10.3 Storage
Appendix A (Normative Appendix) Electrical Safety of Water Heaters Using AC Power
Appendix B (Normative Appendix) Electromagnetic Compatibility Safety
Appendix C (informative appendix) NOx content test

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009.

This standard replaces GB 18111-2000 Gas Storage Water Heater. Compared with GB 18111-2000, except for editorial changes, the main The technical changes are as follows.

a) Modified the scope of application (see Chapter 1, Chapter 1 of the 2000 edition);

b) Some terms and definitions have been added, modified and deleted (see Chapter 3, Chapter 3 of the 2000 edition);

c) Added water heater classification (see 4.1.5, 4.1.6 and 4.1.7);

d) Modified the model compilation method (see 4.2, 4.2.1 of the 2000 edition);

e) Modified asbestos, fire viewing hole, dual-purpose water heater waterway, safety control device, combustion noise, maintenance heat load, water tank capacity and electricity Technical requirements for gas safety (see 5.1.3, 5.2.11, 5.2.19, 5.3.4, 6.3.1.7, 6.8.2, 6.10.1 and Appendix A, 2000 edition 5.3.3, 5.1.10, 5.2.5, 6.3.7, 6.10.2, 6.16 and 6.23);

f) Added small fire burner, pipe connection thread, natural exhaust type water heater anti-smoke safety protection device, and condensing gas volume Technical requirements for water heaters, electromagnetic compatibility safety and NOx classification (see 5.2.8, 5.2.20, 5.2.21, 5.3.6, 6.3.2.3, 5.5, 6.18, 6.21, Appendix B and Appendix C);

g) Deleted the technical requirements for water heater leakage protectors (see 5.2.4 of the 2000 edition);

h) Modified the technical requirements and test methods for thermal efficiency and hot water production rate (see 6.8.1, 7.10.1, 6.8.3, 7.10.3, 2000 edition 6.10.1, 7.11.1, 6.10.3 and 7.11.3).

1 Scope

This standard specifies the terms and definitions, classification and model, materials, structure and safety of gas volumetric water heaters (hereinafter referred to as water heaters) Device, performance requirements, test methods, inspection rules, signs and instructions, packaging, transportation and storage.

This standard applies to gas volumetric water heaters with a rated thermal load of less than 100kW and a rated volume of less than 500L.

The fuel gas referred to in this standard refers to artificial gas, natural gas and liquefied petroleum gas specified in GB/T 13611.

2 Normative references

The following documents are indispensable for the application of this document. For dated reference documents, only the dated version applies to this article Pieces. For undated reference documents, the latest version (including all amendments) is applicable to this document.

GB/T 191 Packaging, storage and transportation pictorial signs

GB/T 2828.1 Sampling Inspection Procedures by Attributes Part 1: Batch Inspection Sampling Plan Retrieved by Acceptance Quality Limit (AQL)

GB/T 4208 Shell protection grade (IP code)

GB 4706.1-2005 Safety of household and similar electrical appliances Part 1: General requirements

GB/T 4857.23 Basic test of packaging and transportation package Part 23: Random vibration test method

GB/T 5013.1 Rubber insulated cables with rated voltages of 450/750V and below Part 1: General requirements

GB/T 5023.1 Polyvinyl chloride insulated cables with rated voltages of 450/750V and below Part 1: General requirements

GB/T 7306 (all parts) 55° sealed pipe thread

GB/T 7307 55° unsealed pipe thread

GB/T 9124.1 Steel pipe flange Part 1: PN series

GB/T 12113-2003 Measurement method of touch current and protective conductor current

GB/T 13611 Classification and basic characteristics of urban gas

GB/T 16411-2008 General test methods for household gas appliances

GB/T 17626.2-2018 Electromagnetic compatibility test and measurement technology Electrostatic discharge immunity test

GB/T 17626.4-2018 Electromagnetic compatibility test and measurement technology Electrical fast transient pulse group immunity test

GB/T 17626.5 Electromagnetic compatibility test and measurement technology surge (impact) immunity test

GB/T 17626.6 Electromagnetic compatibility test and measurement technology Radio frequency field induced conducted disturbance immunity

GB/T 17626.11 Electromagnetic compatibility test and measurement technology Voltage sag, short-term interruption and voltage change immunity test

GB/T 17627 High-voltage test technology definition, test and procedure requirements, test equipment for low-voltage electrical equipment

GB/T 19212.1-2016 Safety of transformers, reactors, power supply units and their combinations Part 1: General requirements and tests

GB/T 20910 Temperature and pressure safety valve for hot water system

GB/T 37499 Special requirements for safety and control devices for gas burners and burning appliances Automatic and semi-automatic valves

GB/T 38595 Special requirements for safety and control devices for gas burners and burning appliances Mechanical temperature control devices

GB/T 38603 Special requirements for safety and control devices for gas burners and burning appliances Electronic controllers

GB/T 38693 Special requirements for safety and control devices for gas burners and burning appliances Thermoelectric flameout protection devices

GB/T 38756 Special requirements for safety and control devices for gas burners and burning appliances Ignition devices

GB/T 39485 Special requirements for safety and control devices for gas burners and burning appliances Manual gas valves

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 57 pages — is available in the English PDF.

Referenced standards

Normative references

GB 4706.1-2005 · GB/T 7306

Cited by

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