Standard
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AS 3645:2017
[Current]Essential requirements for gas equipment
The objective of this Standard is to ensure that gas equipment is designed and constructed in accordance with good engineering practice such that it does not endanger the safety of persons (particularly children, the elderly and people with disabilities), domestic animals or property, when correctly installed and maintained, and used in applications for which it was intended.
Published: 19/09/2017
Pages: 11
Table of contents
Cited references
Content history
Table of contents
Header
About this publication
Preface
1 Scope and general
1.1 Scope
1.2 Objective
1.3 Referenced documents
1.4 Definitions
2 Essential requirements
2.1 General conditions
2.1.1 General
2.1.2 Instructions and marking
2.1.3 Content of instructions for installation and commissioning
2.1.4 Content of instructions for users
2.1.5 Content of markings
2.1.6 Design of accessories
2.1.7 Instructions for accessories
2.2 Materials
2.2.1 Suitability of materials
2.2.2 Effect on water used for sanitary purposes or foodstuffs
2.3 Design and construction
2.3.1 General
2.3.1.1 Durability
2.3.1.2 Condensation
2.3.1.3 Risk of explosion
2.3.1.4 Contamination of gas circuit
2.3.1.5 Normal electricity supply variation
2.3.1.6 Abnormal electricity supply variation
2.3.1.7 Electrical hazards
2.3.1.8 Pressurized parts
2.3.1.9 Controls and safety devices
2.3.1.10 Redundancy of controls
2.3.1.11 Hierarchy of safety controls
2.3.1.12 Protection of preset controls
2.3.1.13 Protection of adjustment
2.3.1.14 Prevention of accidental operation
2.3.1.15 Marking of controls
2.3.1.16 Normal gas supply pressure variations
2.3.1.17 Abnormal gas supply pressure variation
2.3.1.18 Gas quality
2.3.2 Unburnt gas release
2.3.2.1 Gas leakage
2.3.2.2 Release of unburnt gas during ignition
2.3.2.3 Accumulation of unburnt gas during operation
2.3.3 Ignition
2.3.4 Combustion
2.3.4.1 Quality of combustion
2.3.4.2 Release of combustion products
2.3.4.3 Abnormal draught conditions
2.3.4.4 Emissions from flueless appliances
2.3.5 Temperature
2.3.5.1 Surrounding surfaces
2.3.5.2 Gas equipment controls
2.3.5.3 Surfaces likely to be touched
2.3.5.4 Dangers to children and infirm and elderly persons
2.3.6 Rational use of energy
2.3.7 Mechanical safety
2.3.8 Stability and support
2.3.9 Maintenance
3 Means of conformance
Appendix A
A1 Appliances
A1.1 AS/NZS 5263.0, Gas appliances, Part 0: General requirements
A1.2 AS/NZS 5263.1.1, Gas appliances, Part 1.1: Domestic gas cooking appliances
A1.3 AS/NZS 5263.1.2, Gas appliances, Part 1.2: Gas fired water heaters for hot water supply and/or central heating
A1.4 AS/NZS 5263.1.3, Gas appliances, Part 1.3: Gas space heating appliances
A1.5 AS 4554, Gas laundry dryers
A1.6 AS 4555 (AG 105), Domestic gas refrigerators
A1.7 AS/NZS 5263.1.6, Gas appliances, Part 1.6: Indirect gas-fired ducted air-heaters
A1.8 AS/NZS 5263.1.7, Gas appliances, Part 1.7: Domestic outdoor gas barbecues
A1.9 AS/NZS 5263.1.8, Gas appliances, Part 1.8: Decorative effect gas appliances
A1.10 AS 4560, Gas pool heaters
A1.11 AS/NZS 5263.1.4, Gas appliances, Part 1.4: Radiant gas heaters
A1.12 AS 5262, LP Gas mobile industrial direct fired air heaters
A1.13 AS 4563, Commercial catering gas equipment
A1.14 AS 2658, LP Gas—Portable and mobile appliances
A2 Components
A2.1 AS 4617, Manual shut off gas valves
A2.2 AS 4618, Gas appliance regulators
A2.3 AS 4619, Gas appliance thermostats
A2.4 AS 4620, Thermoelectric flame safeguards
A2.5 AS 4621, Regulators for use with liquefied petroleum—Vapour phase
A2.6 AS 4622, Electrical and electronic ignition devices for gas appliances
A2.7 AS 4623, Jointing compounds and materials for use in gas pipe joints
A2.8 AS 4624, Combination controls for gas
A2.9 AS 4625, Electronic flame safeguards and flame detectors
A2.10 AS 4627, Quick-connect devices for gas
A2.11 AS 4628, Pressure and temperature limit devices for use with gas burners
A2.12 AS 4629, Automatic shutoff valves and vent valves
A2.13 AS 4630, Leakage detection systems
A2.14 AS 4631, Limited flexibility connectors for gas
A2.15 AS 4632, Over-pressure and under-pressure cut off devices
A2.16 AS 4566, Flue cowls—Gas appliances
A2.17 AS 4567, Twin wall metal flues—Gas appliances
A2.18 AS/NZS 1425, LP Gas fuel systems for vehicle engines
A2.19 AS/NZS 1869, Hose and hose assemblies for liquefied petroleum gases (LP Gas), natural gas and town gas
A2.20 EN 298, Automatic burner control systems for burners and appliances burning gaseous or liquid fuels
Cited references in this standard
[Current]
Gas installations, Part 2: LP Gas installations in caravans and boats for non-propulsive purposes
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