Standard
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AS/NZS 5263.1.6:2020
[Current]Gas appliances, Part 1.6: Indirect gas-fired ducted air heaters
This Standard provides particular requirements for indirect gas-fired ducted air heaters that apply in addition to or in place of the general requirements for gas appliances set out in AS/NZS 5263.0, Gas appliances, Part 0: General requirements.
Published: 24/01/2020
Pages: 60
Table of contents
Cited references
Content history
Table of contents
Header
About this publication
Preface
1 Scope and general
1.1 Scope and application
1.1.1 Scope
1.1.2 Application
1.2 Normative references
1.3 Terms and definitions
1.4 Test methods
2 Design and construction
2.1 Scope
2.2 General design requirements
2.2.8 Protection of electric lamps
2.2.14 Provision for moving appliances
2.3 Materials
2.4 Design for assembly and installation
2.5 Design for maintenance
2.6 Design for operation
2.7 Controls and safety devices
2.7.101 Thermostatic control
2.8 Gas train
2.9 Combustion air and flue systems
2.9.101 Fluing
2.9.102 Circulating air system
2.10 Fan assisted combustion systems
2.11 Burners and ignition systems
2.11.10 Tray type burners-turndown limits
2.11.101 Programmed ignition
2.12 Components
2.13 Cylinders and cylinder compartments
2.14 Markings
2.14.14 Markings on packaging
2.14.101 Design conditions
2.14.102 Energy label (Australia only)
2.15 Instructions
2.15.2 Installation
2.15.2.1 Instructions supplied with the appliance
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
3.7 Ignition of draped fabric
4 Tests under limiting conditions
4.1 General
4.2 CO/CO2 ratio limits for any independent surface combustion burner — Underload
4.3 CO/CO2 ratio limits for any independent burner — Overload
4.4 CO/CO2 ratio limits for permanent pilots — Overload
4.5 Flame characteristics at maximum and minimum limiting conditions
4.6 Burner ignition at maximum and minimum limiting conditions
4.7 Delayed ignition at maximum and minimum limiting conditions
4.8 Reignition at turndown under draught conditions
4.9 Pilot ignition and stability at maximum and minimum limiting conditions
4.10 Burner stability when changing setting
4.11 Unburnt gas release from burner system
4.12 Blocked flueway terminal
4.13 Case pressure test
4.14 Effect of opening and closing doors at turndown condition
4.15 Sooting — Luminous effect appliances
4.16 Burner interference at ignition or during combustion
5 Performance specifications
5.1 Combustion air supply
5.2 Flue operation
5.3 Condensate
5.4 Temperature hazards
5.4.2 Appliance operating conditions
5.4.6 Temperature limits — Appliance safety
5.4.6.101 Maximum outlet air temperature
5.5 Heat resistance of appliance
5.5.1 Resistance to temperatures
5.5.1.2 Test conditions
5.6 Durability
5.6.3 Effect of spillover on ignition systems
5.6.101 Durability of heat exchangers
5.7 Electrical supply variation or 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 (Australia only)
5.12.101 General
5.12.102 Reduction in thermal efficiency with maximum flue length
5.12.103 Thermal efficiency in wind conditions
5.12.104 Efficiency to be consistent over operating range
5.13 Vitiation and emissions
5.101 Obstruction of filters
5.102 Room air fan performance
Appendix AA
Appendix BB
BB.1 General
BB.2 Notation
BB.3 Data sources
BB.3.1 Heating values of fuel gases
BB.3.2 Carbon ratio
BB.3.3 Mean specific heat of dry flue gases
BB.4 Thermal efficiency calculation
BB.4.1 Method of this Standard
BB.4.2 Method of EN 613
BB.5 Comparison of methods
Appendix ZA
Appendix ZB
ZB.2 Determination of CO/CO2 ratio for any independent burner — Overload test
ZB.2.5 Preparation of apparatus
Appendix ZC
ZC.4 Performance with downdraught, updraught and blocked flue test
ZC.4.5 Preparation of apparatus
ZC.4.6 Procedures
ZC.4.6.1 Open flued appliances with a draught diverter or alternative system
ZC.4.6.2 Open flued appliances without a draught diverter or similar device
ZC.8 Temperature hazards test
ZC.8.1 Scope
ZC.8.2 Principle
ZC.8.3 Apparatus
ZC.8.4 Materials
ZC.8.5 Preparation of apparatus
ZC.8.6 Procedure
ZC.8.7 Test report
ZC.101 Blocked filter test
ZC.101.1 Scope
ZC.101.2 Principle
ZC.101.3 Apparatus
ZC.101.4 Materials
ZC.101.5 Preparation of apparatus
ZC.101.6 Procedure
ZC.101.7 Test report
ZC.102 Thermal efficiency test
ZC.102.1 Scope
ZC.102.2 Principle
ZC.102.3 Apparatus
ZC.102.4 Materials
ZC.102.5 Preparation of apparatus
ZC.102.6 Procedure 1: Open-flued appliances
ZC.102.7 Procedure 2: Room-sealed or power-flued appliances
ZC.102.8 Calculation
ZC.102.9 Test report
ZC.103 Thermal efficiency in wind conditions test
ZC.103.1 Scope
ZC.103.2 Principle
ZC.103.3 Apparatus
ZC.103.4 Materials
ZC.103.5 Preparation of apparatus
ZC.103.6 Procedure
ZC.103.7 Test report
ZC.104 Durability of heat exchangers — Short test
ZC.104.1 Scope
ZC.104.2 Principle
ZC.104.3 Apparatus
ZC.104.4 Materials
ZC.104.5 Preparation of apparatus
ZC.104.6 Procedure
ZC.104.7 Test report
ZC.105 Durability of heat exchangers — Long test
ZC.105.1 Scope
ZC.105.2 Principle
ZC.105.3 Apparatus
ZC.105.4 Materials
ZC.105.5 Preparation of apparatus
ZC.105.6 Procedure
ZC.105.7 Test report
ZC.106 Fan performance test
ZC.106.1 Scope
ZC.106.2 Principle
ZC.106.3 Apparatus
ZC.106.4 Preparation of apparatus
ZC.106.5 Procedure
ZC.106.6 Test report
ZC.107 Energy labelling test
ZC.107.1 Scope
ZC.107.2 Principle
ZC.107.3 Apparatus
ZC.107.4 Materials
ZC.107.5 Preparation of apparatus
ZC.107.6 Procedure
ZC.107.6.1 General
ZC.107.6.2 Heavy load test for appliances where b1 > 0
ZC.107.6.3 Heavy load test for appliances where b1 = 0
ZC.107.6.4 Light load test for appliances where b2 > 0
ZC.107.6.5 Light load test for appliances where b2 = 0
ZC.107.6.6 Standby energy consumption
ZC.107.6.7 Efficiency to be consistent over operating range
ZC.107.7 Calculations
ZC.107.7.1 Preliminary
ZC.107.7.2 Appliance efficiency
ZC.107.7.3 System factor calculation
ZC.107.8 Results
ZC.107.8.1 Energy star rating
ZC.107.8.2 Annual energy consumption (AEC)
ZC.107.8.3 “Red band” shading
ZC.107.9 Test report
Bibliography
Cited references in this standard
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