AS/NZS 5263.1.10:2019
Gas appliances Part 1.10: Gas direct fired air heaters
The objective of this Standard is to provide manufacturers, designers, regulatory authorities, testinglaboratories and similar organizations with uniform minimum requirements for the safety, performanceand use of gas appliances.This Standard should not be regarded as a design specification or as an instruction manual.Consideration has been given to —(i) continuity of satisfactory operation;(ii) the prevention of fire hazards, and explosions;(iii) the prevention of injury to persons or property;(iv) gas rules and regulations now in force; and(v) relevant International Standards.AS/NZS 5601 series of Standards provides essential requirements and means of conformance for gasinstallations. Any reference to “AS/NZS 5601” in AS/NZS 5263 series of Standards should be consideredas reference to the appropriate part of AS/NZS 5601 series of Standards (i.e. AS/NZS 5601.1 orAS/NZS 5601.2).
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AS/NZS 5263.1.10:2019 Gas appliances Gas direct fired air heaters
Preface
Section 1 Scope and general
1.1 Scope and Application
1.1.1 Scope
1.1.2 Application
1.2 Referenced documents
1.3 Terms and definitions
1.4 Test methods
Section 2 Design and construction
2.1 Scope
2.2 General design requirements
2.2.2 Positioning of removable components
2.2.12 Provision for removal of condensate
2.2.101 Prevention of manual contact with fan impeller
2.3 Materials
2.4 Design for assembly and installation
2.5 Design for maintenance
2.5.8 Means for gas pressure measurement
2.6 Design for operation
2.7 Controls and safety devices
2.7.7 Tip over system
2.7.101 Use of limit devices
2.8 Gas train
2.8.2 Provision of pressure regulators
2.8.101 Control of start gas flow rate
2.8.102 User adjustment of pressure regulator
2.8.103 Low pressure detector
2.9 Combustion air and flue systems
2.10 Fan assisted combustion systems
2.11 Burners and ignition systems
2.11.10 Tray type burners — Turndown limits
2.12 Components
2.13 Cylinders and cylinder compartments
2.14 Markings
2.14.2 Permanent markings on appliances
2.14.101 Provision of marking relating to ventilation
2.15 Instructions
2.15.2 Installation
2.15.3 Operation
2.15.4 Maintenance
Section 3 Preliminary tests — Line gases
3.1 General
3.2 Preparation for testing
3.3 Gas leakage
3.4 Gas consumption
3.5 Gas pressure regulators
3.6 Ignition and safety shut off systems
3.6.1 General requirements
3.6.2 Additional requirements for atmospheric burners with automatic burner ignition systems not based on permanent pilots
3.6.3 Additional requirements for fan assisted combustion systems with automatic ignition not based on permanent pilots
3.6.101 Flame extension
3.6.102 Pilot burner stability
3.6.103 Burner ignition
Section 4 Tests under limiting conditions
Section 5 Performance specifications
5.1 Combustion air supply
5.1.2 Obstruction of air inlets with fan assisted combustion systems
5.2 Flue operation
5.3 Condensate
5.4 Temperature hazards
5.4.2 Appliance operating conditions
5.4.3 Temperature limits — Surrounding surfaces
5.4.5 Temperature limits — Surfaces likely to be accidentally touched
5.4.7 Temperature limits — Protection from contact with the heat source
5.5 Heat resistance of appliance
5.5.1 Resistance to temperatures
5.5.3 Minimum temperature requirements of heat exchangers during warming-up period
5.5.4 Maximum temperature requirements for heat exchanger materials
5.6 Durability
5.7 Electrical supply variation or failure
5.7.101 Power failure
5.8 Appliance operation under linting conditions
5.9 Rain test for outdoor and room sealed appliances
5.10 Operation under windy conditions
5.11 Strength and stability
5.12 Thermal efficiency
5.13 Vitiation and emissions
5.13.1 Operation of oxygen depletion system
5.13.2 Vitiation
5.13.3 Combustion at low appliance inlet pressure
5.13.4 CO/CO2 ratio at manufacturer’s nominal test point pressure
5.13.5 Nitrogen dioxide emission rate (Australia only)
5.101 CO, CO2, NO2 and formaldehyde limits at manufacturer’s rated air throughput
5.102 CO, CO2, NO2 and formaldehyde limits at reduced air throughputs
5.103 Flame characteristics
5.104 Burner stability when changing settings
Appendix ZA (normative) Preliminary test methods
Appendix ZB (normative) Limiting conditions test methods
Appendix ZC (normative) Performance test methods
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AS/NZS 5263.1.10:2019 Gas appliances Gas direct fired air heaters
Preface
Section 1 Scope and general
1.1 Scope and Application
1.1.1 Scope
1.1.2 Application
1.2 Referenced documents
1.3 Terms and definitions
1.4 Test methods
Section 2 Design and construction
2.1 Scope
2.2 General design requirements
2.2.2 Positioning of removable components
2.2.12 Provision for removal of condensate
2.2.101 Prevention of manual contact with fan impeller
2.3 Materials
2.4 Design for assembly and installation
2.5 Design for maintenance
2.5.8 Means for gas pressure measurement
2.6 Design for operation
2.7 Controls and safety devices
2.7.7 Tip over system
2.7.101 Use of limit devices
2.8 Gas train
2.8.2 Provision of pressure regulators
2.8.101 Control of start gas flow rate
2.8.102 User adjustment of pressure regulator
2.8.103 Low pressure detector
2.9 Combustion air and flue systems
2.10 Fan assisted combustion systems
2.11 Burners and ignition systems
2.11.10 Tray type burners — Turndown limits
2.12 Components
2.13 Cylinders and cylinder compartments
2.14 Markings
2.14.2 Permanent markings on appliances
2.14.101 Provision of marking relating to ventilation
2.15 Instructions
2.15.2 Installation
2.15.3 Operation
2.15.4 Maintenance
Section 3 Preliminary tests — Line gases
3.1 General
3.2 Preparation for testing
3.3 Gas leakage
3.4 Gas consumption
3.5 Gas pressure regulators
3.6 Ignition and safety shut off systems
3.6.1 General requirements
3.6.2 Additional requirements for atmospheric burners with automatic burner ignition systems not based on permanent pilots
3.6.3 Additional requirements for fan assisted combustion systems with automatic ignition not based on permanent pilots
3.6.101 Flame extension
3.6.102 Pilot burner stability
3.6.103 Burner ignition
Section 4 Tests under limiting conditions
Section 5 Performance specifications
5.1 Combustion air supply
5.1.2 Obstruction of air inlets with fan assisted combustion systems
5.2 Flue operation
5.3 Condensate
5.4 Temperature hazards
5.4.2 Appliance operating conditions
5.4.3 Temperature limits — Surrounding surfaces
5.4.5 Temperature limits — Surfaces likely to be accidentally touched
5.4.7 Temperature limits — Protection from contact with the heat source
5.5 Heat resistance of appliance
5.5.1 Resistance to temperatures
5.5.3 Minimum temperature requirements of heat exchangers during warming-up period
5.5.4 Maximum temperature requirements for heat exchanger materials
5.6 Durability
5.7 Electrical supply variation or failure
5.7.101 Power failure
5.8 Appliance operation under linting conditions
5.9 Rain test for outdoor and room sealed appliances
5.10 Operation under windy conditions
5.11 Strength and stability
5.12 Thermal efficiency
5.13 Vitiation and emissions
5.13.1 Operation of oxygen depletion system
5.13.2 Vitiation
5.13.3 Combustion at low appliance inlet pressure
5.13.4 CO/CO2 ratio at manufacturer’s nominal test point pressure
5.13.5 Nitrogen dioxide emission rate (Australia only)
5.101 CO, CO2, NO2 and formaldehyde limits at manufacturer’s rated air throughput
5.102 CO, CO2, NO2 and formaldehyde limits at reduced air throughputs
5.103 Flame characteristics
5.104 Burner stability when changing settings
Appendix ZA (normative) Preliminary test methods
Appendix ZB (normative) Limiting conditions test methods
Appendix ZC (normative) Performance test methods
AS/NZS 5263.1.10:2019
Online Library subscription pricing
The cost of your subscription will depend on which standards you want to access, and how many people in your organisation need to be able to access the Online Library subscription at the same time (concurrent users). During your subscription period, we are also able to make any necessary changes and ensure you are aware of any pricing changes that result. For a quote, contact our Online Library team by emailing onlinelibrary@standards.govt.nz.