NZS AS 4553.1&.2(Int):2013
Gas space heating appliances - Part 1: Essential safety and Part 2: Efficiency and emissions
This two-part Standard sets out the requirements for gas space heating appliances supplied to New Zealand. Part 1 covers the essential safety requirements, and Part 2 covers efficiency and emissions. Adopted with national modifications from AS 4553-2008. Attention is drawn to the fact that this document was published in 2013 as an interim one. Standards New Zealand extends the invitation to comment on the document from persons and organisations concerned with this subject. The interim period of this standard is extended from 31 March 2014 to 31 March 2016. The reason for this extension is to cover the period during which a proposed joint Australian/New Zealand standard AS/NZS 5263 will be under development, and will eventually replace the Australian standard AS 4553 that this this interim standard has adopted.
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NZS AS 4553(Int) .1 and .2:2013
COMMITTEE REPRESENTATION
ACKNOWLEDGEMENT
COPYRIGHT
NZS AS 4553.1(Int):2013
LATEST REVISIONS
Foreword
Outcome statement
CLAUSE
NZS AS 4553.2(Int):2013
Foreword
Outcome statement
CLAUSE
COMMENT FORM
AS 4553—2008 GAS SPACE HEATING APPLIANCES
PREFACE
CONTENTS
SECTION 1 SCOPE AND GENERAL
1.1 SCOPE
1.2 REFERENCE DOCUMENTS
1.3 DEFINITIONS
1.3.1 Appliance flueway
1.3.2 Appliance flueway terminal
1.3.3 Appliance regulator
1.3.4 Appliance ventilation duct
1.3.5 Atmospheric burner
1.3.6 Authority having jurisdiction
1.3.7 Automatic ignition
1.3.8 Automatic operation
1.3.9 Automatic shut off valve
1.3.10 Available gas (line gas)
1.3.11 Balanced flue appliance
1.3.12 Burner port
1.3.13 Bypass
1.3.14 Calibration
1.3.15 Certified/Certification
1.3.16 Certifying Body
1.3.17 CO/CO2 ratio
1.3.18 Combination gas control
1.3.19 Combustible materials
1.3.20 Combustion products
1.3.21 Combustion products discharge safety device
1.3.22 Compression fitting
1.3.23 Convection heater
1.3.24 Cross lighting
1.3.25 Determined gas consumption
1.3.26 Direct ignition device
1.3.27 Draught diverter
1.3.28 Electronic flame safeguard
1.3.29 Emission class
1.3.30 Excess air
1.3.31 External surfaces
1.3.32 Fan assisted combustion system
1.3.33 Flame abnormality
1.3.34 Flame detector
1.3.35 Flame establishment period
1.3.36 Flame failure response time
1.3.37 Flame proving period
1.3.38 Flame safeguard
1.3.39 Flame safeguard system
1.3.40 Flash tube
1.3.41 Flue
1.3.42 Flue connection
1.3.43 Flue cowl
1.3.44 Flue gases
1.3.45 Flue system
1.3.46 Flue terminal
1.3.47 Forced draught
1.3.48 Gas
1.3.49 Gas consumption
1.3.50 Heat sources
1.3.51 Heating value, gross (at constant pressure)
1.3.52 Hose assembly
1.3.53 Indoor flueless appliance
1.3.54 Induced draught
1.3.55 Injector
1.3.56 Intermittent pilot
1.3.57 Interrupted pilot
1.3.58 Jointing compound
1.3.59 Jointing material
1.3.60 Lift (flame)
1.3.61 Light back
1.3.62 Linting
1.3.63 Lockout
1.3.64 LPG
1.3.65 Manual ignition
1.3.66 Maximum useful heat output (MUHO)
1.3.67 Mixing tube
1.3.68 Natural draught burner
1.3.69 Natural gas
1.3.70 Nominal gas consumption
1.3.71 Nominal test point pressure
1.3.72 Normal test gas pressure
1.3.73 Open flued appliance
1.3.74 Overheat cut-off device
1.3.75 Overload gas consumption
1.3.76 Over-temperature cut-out device
1.3.77 Oxygen depletion system (ODS)
1.3.78 Permanent pilot
1.3.79 Pilot
1.3.80 Portable appliance
1.3.81 Power flued
1.3.82 Primary aeration control
1.3.83 Primary air
1.3.84 Primary air ports
1.3.85 Primary flue
1.3.86 Primary guard
1.3.87 Programmable electronic system (PES)
1.3.88 Programmed ignition
1.3.89 Programming flame safeguard
1.3.90 Protected pilot
1.3.91 Purge volume
1.3.92 Quick-connect device
1.3.93 Radiant convection heater
1.3.94 Radiant heater
1.3.95 Recessed wall heater
1.3.96 Reference gas
1.3.97 Relative density
1.3.98 Room sealed appliance
1.3.99 Safety shutdown
1.3.100 Safety shut off system
1.3.101 Safety shut off valve
1.3.102 Secondary air
1.3.103 Secondary flue
1.3.104 Secondary guard
1.3.105 Self-latching gas valve
1.3.106 Simulated natural gas (SNG)
1.3.107 Specific gravity
1.3.108 Spillage
1.3.109 Star allocation index (SAI)
1.3.110 Start gas
1.3.111 Surface combustion burner
1.3.112 Technical Regulator
1.3.113 Temperature limit device
1.3.114 Tempered liquefied petroleum gas (TLP)
1.3.115 Test gases
1.3.116 Thermostat
1.3.117 Thermostat bypass
1.3.118 Town gas
1.3.119 Turndown gas consumption
1.3.120 Valve
1.3.121 Wobbe index (Wobbe number)
1.3.122 Working surfaces
SECTION 2 DESIGN AND CONSTRUCTION
2.1 GENERAL
2.1.1 Preliminary specification
2.1.2 Physical inspection
2.1.3 Certification of safety components
2.1.4 Programmable electronic systems
2.1.5 Manual shut off gas valves
2.1.6 Classification of safety shut off valves
2.1.7 Compliance of electrical components
2.1.8 Power failure
2.1.9 Fuel storage container
2.1.10 Prohibited burner systems
2.1.11 Positioning of logs or coals
2.1.12 Provision for moving appliances
2.1.13 Sharp edges
2.1.14 Handles and knobs
2.1.15 Continuity of satisfactory operation
2.1.16 Insulation
2.1.17 Protection of vitreous enamel
2.1.18 Means of support
2.1.19 Compliance in alternative forms
2.1.20 Means of ignition for room sealed appliances
2.1.21 Locking means for adjusting devices
2.1.22 Fitting of primary guard
2.1.23 Means for gas pressure measurement
2.1.24 Provision for removal of condensate
2.2 MATERIALS
2.2.1 General
2.2.2 Materials containing asbestos
2.2.3 Materials in contact with gas
2.2.4 Material used in gas appliances
2.2.5 Zinc based alloys
2.2.6 Components required to be placed in a flame
2.2.7 Materials used in electrical construction
2.2.8 Spark electrodes
2.2.9 Protection of aluminium tubing
2.2.10 Thermal insulation
2.2.11 Compression fittings
2.3 ELECTRICAL SYSTEMS
2.3.1 Connection to the mains electrical supply
2.3.2 Accessibility to electrical components
2.3.3 Connection of electrical components
2.3.4 Plug and socket connections
2.3.5 Protection against accidental contact
2.3.6 Protection of low voltage electrical components and wiring
2.3.7 Motor bearings suitability
2.4 INSTALLATION REQUIREMENTS
2.4.1 Fixing of gas inlet connection
2.4.2 Gas inlet connection thread
2.4.3 Access to connections
2.5 MAINTENANCE REQUIREMENTS
2.5.1 Dismantling and replacement by the user
2.5.2 Insertion and removal of gas injectors
2.5.3 Assembly and attachment of handles, dials and pointers
2.5.4 Accessibility for adjustment
2.5.5 Accessibility for replacement
2.5.6 Screwed connections
2.5.7 Inaccessible nuts or bolts
2.6 PRESSURE REGULATORS
2.6.1 Provision of a pressure regulating device
2.6.2 Positioning of pressure regulators
2.7 GAS CONTROLS AND SAFETY SHUT OFF SYSTEMS
2.7.1 General
2.7.2 Accessibility by the user
2.7.3 Accidental change of settings of valves, dials and pointers
2.7.4 Fitting of self-latching valves
2.7.5 Provision of flame safeguard
2.7.6 Flueless appliances—additional shut off provision
2.7.7 Tilt shut off
2.7.8 Main burner shut off provision
2.7.9 Automatic reignition means
2.7.10 Safety controls for exposed burners
2.7.11 Main burner automatic shut off valve
2.8 COMBUSTION AIR SUPPLY AND CONTROLS
2.8.1 Combustion air supply equipment
2.8.2 Combustion air flow proving interlock
2.8.3 Prevention of combustion air backflow
2.9 IGNITION, PILOTS AND MAIN BURNERS
2.9.1 Burners with remote manual ignition
2.9.2 Burners with direct manual ignition
2.9.3 Prevention of injury at ignition
2.9.4 Manually operated burners in an enclosed compartment
2.9.5 Burners interconnected by flues or passages
2.9.6 Means for turning off pilot burner gas supply
2.9.7 Viewing of flames
2.9.8 Proving of burner or pilot ignition
2.9.9 Positive location of flash lighting tubes
2.9.10 Support of pilots, igniters and flame sensing devices
2.9.11 Location of burner mixing tubes
2.9.12 Burner supports
2.9.13 Fixing of gas manifolds
2.9.14 Protection of ports and injectors
2.9.15 Restriction on gauze over primary air ports
2.9.16 Pilot gas filters
2.9.17 Aeration adjustment for Universal LPG appliances
2.10 FLUEING REQUIREMENTS
2.10.1 Design of air entry and combustion product discharge
2.10.2 Design of flue connection
2.10.3 Flue terminal and draught diverter construction
2.10.4 Flue terminal openings
2.10.5 Safety shutdown—combustion products limits
2.11 MARKINGS AND LABELS
2.11.1 Indication of function
2.11.2 Markings on packaging or appliance
2.11.3 Flueless appliances additional markings on packaging
2.11.4 Gas type label
2.11.5 Appliances for use with a flexible connection
2.11.6 Gas type colour code
2.11.7 Identification of injectors
2.11.8 Marking of radiants
2.11.9 Marking of fans
2.11.10 Markings on appliances
2.11.11 Marking of doors and covers
2.11.12 Warning label regarding removing of components
2.11.13 Flue terminal marking
2.11.14 Markings for primary guards
2.11.15 Energy label
2.11.16 Emission label
2.12 INSTRUCTIONS
2.12.1 Documents remaining with user
2.12.2 Installation instructions
2.12.3 Operating instructions
2.12.4 Servicing instructions
2.12.5 Inclusion of warning to prohibit unauthorized servicing
SECTION 3 PRELIMINARY TESTS—LINE GASES
3.1 GENERAL
3.1.1 Introduction
3.1.2 Test gases
3.1.3 Appliances designed for various flue configurations
3.2 PREPARATION FOR TESTING
3.2.1 Electrical safety requirements (earth leakage)
3.2.2 Setting up appliance for testing
3.2.3 Appliance regulators not to be removed during testing
3.2.4 Protection from accidental draughts
3.2.5 Prevention of gas rate variation
3.2.6 Gas pressure and gas volume test equipment
3.3 PRIMARY GUARD AND GRILLE
3.3.1 Primary guard attachment
3.3.2 Primary guard openings
3.3.3 Protection from contact with the heat source
3.3.4 Fabric drape test
3.3.5 Impact resistance
3.3.6 Surface finish
3.4 GAS LEAKAGE
3.4.1 Gas circuit soundness
3.4.2 Control of bleed line gas
3.5 GAS CONSUMPTION
3.5.1 Tolerance on determined gas consumption
3.5.2 Determined gas consumption of permanent pilots
3.6 GAS PRESSURE REGULATORS
3.6.1 Pressure regulator performance
3.7 IGNITION AND SAFETY SHUT OFF SYSTEMS
3.7.1 Requirements applicable to all
3.7.2 Automatic burner ignition systems—Additional requirements
SECTION 4 LIMIT GAS TESTS
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 ABNORMALITY
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 NOISE OF EXTINCTION
4.10 BURNER STABILITY WHEN CHANGING SETTING
4.11 PILOT IGNITION AND STABILITY AT MAXIMUM AND MINIMUM LIMITING CONDITIONS
4.12 EFFECT OF OPENING AND CLOSING DOORS AT TURNDOWN CONDITION
4.13 UNBURNT GAS RELEASE FROM BURNER SYSTEM
4.14 BURNER INTERFERENCE AT IGNITION OR DURING COMBUSTION
4.15 BLOCKED FLUEWAY TERMINAL
4.16 CASE PRESSURE
4.17 SOOTING—LUMINOUS EFFECT APPLIANCES
4.18 LIGHT BACK IN UNFLUED APPLIANCES WITH CONCEALED BURNER(S)
SECTION 5 PERFORMANCE TESTS
5.1 GENERAL
5.2 FLUE OPERATION
5.2.1 Diversion of combustion products
5.2.2 Spillage of combustion products
5.2.3 Circulating air system
5.2.4 Performance with updraught, downdraught and blocked flue
5.3 THERMAL EFFICIENCY
5.3.1 General
5.3.2 Flued forced convection and flued forced radiant convection heaters
5.3.3 Reduction in thermal efficiency with maximum flue length
5.3.4 Rear registers
5.3.5 Thermal efficiency in wind conditions
5.3.6 Flue gases temperatures
5.4 NOISE OF OPERATION
5.5 CONDENSATION
5.5.1 Control of flue gas condensate
5.5.2 Condensate interference with combustion
5.5.3 Blocked condensate drain
5.6 COMBUSTION AIR SUPPLY
5.6.1 Combustion air flow proving
5.6.2 Obstruction of air inlets on appliances with fan assisted combustion systems
5.6.3 Power failure
5.6.4 Response to electrical power variation or failure
5.7 TEMPERATURE HAZARDS
5.7.1 Test conditions
5.7.2 Surrounding surfaces—Temperature limits
5.7.3 Personal safety—Temperature limits
5.7.4 Appliance safety—Temperature limits
5.8 HEAT RESISTANCE
5.8.1 Resistance to temperatures—overload conditions
5.8.2 Resistance to temperatures—burners lit back
5.9 DURABILITY OF HEAT EXCHANGERS
5.9.1 Minimum temperature requirements of heat exchangers during warming-up period
5.9.2 Maximum temperature requirements for heat exchanger materials
5.10 VITIATION AND EMISSIONS TESTS
5.10.1 Limiting operating conditions
5.10.2 Operation of oxygen depletion system
5.10.3 CO/CO2 ratio of the combustion products at 20% of the nominal appliance inlet pressure
5.10.4 Nitrogen dioxide emission rate
5.10.5 CO/CO2 ratio at the manufacturer's specified test point pressure
5.11 WIND TEST - ROOM SEALED APPLIANCES
5.11.1 Power flued appliances
5.11.2 Sealing of room sealed appliances
5.11.3 Failure of the fan
5.11.4 Pilot burner ignition under wind conditions
5.11.5 Pilot burner stability under wind conditions
5.11.6 Main burner ignition under wind conditions
5.11.7 Flame safeguard operation under wind conditions
5.11.8 Appliance operation under wind conditions
5.11.9 Appliance safety under wind conditions
5.12 ROOM TEMPERATURE CONTROLS
5.12.1 Appliance temperature controls
5.12.2 Location of temperature controls
5.13 LINTING TESTS
5.13.1 Appliance operation under linting conditions
5.13.2 Construction of aeration controls
5.13.3 Protection of fan and motor bearings
5.14 RAIN TEST
5.14.1 Room sealed appliances
5.15 STRENGTH AND STABILITY
5.15.1 Tilt test
5.15.2 Bearing pressure of floor mounted appliances
5.15.3 Strength of flue connection
5.16 ENERGY LABELLING
5.17 EMISSION LABELLING
5.18 SPECIFICATIONS
APPENDIX A - FIGURES A1 TO A16
APPENDIX B - METHODS OF TEST
B1 M.O.T. 2.2.5 (c)—ZINC ALLOY TEST
B1.1 Scope
B1.2 Principle
B1.3 Apparatus
B1.4 Procedure
B1.5 Result
B2 M.O.T. 2.10.5(a)—SPILLAGE MONITORING SYSTEM FOR APPLIANCES WITH AN ATMOSPHERE SENSING DEVICE
B2.1 Scope
B2.2 Principle
B2.3 Materials
B2.4 Apparatus
B2.5 Preparation of apparatus
B2.6 Procedure
B2.7 Result
B3 M.O.T. 2.10.5(b)—SPILLAGE MONITORING SYSTEM TEST FOR APPLIANCES WITH A COMBUSTION PRODUCTS DISCHARGE SAFETY DEVICE
B3.1 Principle
B3.2 Apparatus
B3.3 Materials
B3.4 Preparation of apparatus
B3.5 Procedure
B3.6 Result
B4 M.O.T. 2.11—MARKINGS AND LABELS
B4.1 Scope
B4.2 Principle
B4.3 Apparatus
B4.4 Materials
B4.5 Procedure
B4.6 Result
B5 M.O.T. 3.3.1—DETERMINATION OF INTEGRITY OF THE PRIMARY GUARD
B5.1 Scope
B5.2 Principle
B5.3 Apparatus
B5.4 Preparation of apparatus
B5.5 Procedure
B5.6 Result
B6 M.O.T. 3.3.4–02FABRIC DRAPE TEST
B6.1 Scope
B6.2 Principle
B6.3 Apparatus
B6.4 Materials
B6.5 Preparation of apparatus
B6.6 Procedure
B6.7 Result
B7 M.O.T. 3.3.5—DETERMINATION OF THE RESISTANCE OF PRIMARY GUARDS TO IMPACT
B7.1 Scope
B7.2 Principle
B7.3 Apparatus
B7.4 Preparation of apparatus
B7.5 Procedure
B7.6 Result
B8 M.O.T. 3.4.1—GAS LEAKAGE
B8.1 Scope
B8.2 Principle
B8.3 Apparatus
B8.4 Materials
B8.5 Preparation of apparatus
B8.6 Procedure
B8.7 Result
B9 M.O.T. 3.5.1/2—GAS CONSUMPTION
B9.1 Scope
B9.2 Principle
B9.3 Apparatus
B9.4 Materials
B9.5 Preparation of apparatus
B9.6 Procedure
B9.7 Result
B10 M.O.T. 3.6.1—GAS PRESSURE REGULATOR PERFORMANCE
B10.1 Scope
B10.2 Principle
B10.3 Apparatus
B10.4 Materials
B10.5 Preparation of apparatus
B10.6 Procedure
B10.7 Result
B11 M.O.T. 3.7.1.1/3.7.1.4—IGNITION—AERATED PILOTS
B11.1 Scope
B11.2 Principle
B11.3 Apparatus
B11.4 Materials
B11.5 Preparation of apparatus
B11.6 Procedure
B11.7 Results
B12 M.O.T. 3.7.1.2/3.7.1.4—IGNITION OF A BURNER PROTECTED BY A FLAME SAFEGUARD SYSTEM
B12.1 Scope
B12.2 Principle
B12.3 Apparatus
B12.4 Materials
B12.5 Preparation of apparatus
B12.6 Procedure
B12.7 Result
B13 M.O.T. 3.7.1.5—IGNITION—OPENING OF FLAME SAFEGUARD SYSTEM
B13.1 Scope
B13.2 Principle
B13.3 Apparatus
B13.4 Materials
B13.5 Preparation of apparatus
B13.6 Procedure
B13.7 Result
B14 M.O.T. 3.7.1.14—OPERATION OF SAFETY SHUT OFF SYSTEM
B14.1 Scope
B14.2 Principle
B14.3 Materials
B14.4 Apparatus
B14.5 Preparation of apparatus
B14.6 Procedure
B14.7 Result
B15 M.O.T. 3.7.2.1.2/3.7.2.2.1—START FLAME ESTABLISHMENT PERIOD DELAYED IGNITION TESTS
B15.1 Scope
B15.2 Principle
B15.3 Apparatus
B15.4 Materials
B15.5 Preparation of apparatus
B15.6 Procedure
B15.7 Result
B16 M.O.T. 3.7.2.1.4—AUTOMATIC BURNER IGNITION SYSTEMS FOR ATMOSPHERIC BURNERS
B16.1 Scope
B16.2 Principle
B16.3 Apparatus
B16.4 Materials
B16.5 Preparation of apparatus
B16.6 Procedure
B16.7 Result
B17 M.O.T. 4.2—DETERMINATION OF CO/CO2 RATIO OF COMBUSTION PRODUCTS—SURFACE COMBUSTION BURNERS—UNDERLOAD
B17.1 Scope
B17.2 Principle
B17.3 Apparatus
B17.4 Materials
B17.5 Preparation of apparatus
B17.6 Procedure
B17.7 Result
B18 M.O.T. 4.3—DETERMINATION OF CO/CO2 RATIO OF COMBUSTION PRODUCTS—INDEPENDENT BURNER—OVERLOAD
B18.1 Scope
B18.2 Principle
B18.3 Apparatus
B18.4 Materials
B18.5 Preparation of apparatus
B18.6 Procedure
B18.7 Result
B19 M.O.T. 4.4—DETERMINATION OF CO/CO2 RATIO OF COMBUSTION PRODUCTS—PERMANENT PILOTS—OVERLOAD
B19.1 Scope
B19.2 Principle
B19.3 Apparatus
B19.4 Materials
B19.5 Preparation of apparatus
B19.6 Procedure
B19.7 Result
B20 M.O.T. 4.5—FLAME ABNORMALITY
B20.1 Scope
B20.2 Principle
B20.3 Apparatus
B20.4 Materials
B20.5 Preparation of apparatus
B20.6 Procedure
B20.7 Result
B21 M.O.T. 4.6—IGNITION TESTS
B21.6 Scope
B21.7 Principle
B21.8 Apparatus
B21.9 Materials
B21.10 Preparation of apparatus
B21.11 Procedure
B21.12 Result
B22 M.O.T. 4.7/2.9.4—DELAYED IGNITION TEST
B22.6 Scope
B22.7 Principle
B22.8 Apparatus
B22.9 Materials
B22.10 Preparation of apparatus
B22.11 Procedure
B22.12 Result
B23 M.O.T. 4.8—FLAME STABILITY TO DRAUGHT
B23.6 Scope
B23.7 Principle
B23.8 Apparatus
B23.9 Materials
B23.10 Preparation of apparatus
B23.11 Procedure
B23.12 Result
B24 M.O.T. 4.11—PILOT FLAMES—IGNITION AND STABILITY
B24.6 Scope
B24.7 Principle
B24.8 Apparatus
B24.9 Materials
B24.10 Preparation of apparatus
B24.11 Procedure
B24.12 Result
B25 M.O.T. 4.12—EFFECT OF APPLIANCE DOOR OPERATION ON BURNER STABILITY
B25.6 Scope
B25.7 Principle
B25.8 Apparatus
B25.9 Materials
B25.10 Preparation of apparatus
B25.11 Procedure
B25.12 Result
B26 M.O.T. 4.13–BURNER OPERATION—UNBURNT GAS SPILLAGE FROM BURNER SYSTEM
B26.6 Scope
B26.7 Principle
B26.8 Apparatus
B26.9 Materials
B26.10 Preparation of apparatus
B26.11 Procedure
B26.12 Result
B27 M.O.T. 4.15—BURNER FLAME STABILITY—BLOCKED FLUEWAY TERMINAL
B27.6 Scope
B27.7 Principle
B27.8 Apparatus
B27.9 Materials
B27.10 Preparation for test
B27.11 Procedure
B27.12 Result
B28 M.O.T. 4.16—CASE PRESSURE TEST
B28.6 Scope
B28.7 Principle
B28.8 Apparatus
B28.9 Materials
B28.10 Preparation of apparatus
B28.11 Procedure
B28.12 Result
B29 M.O.T. 4.17—SOOTING TEST—LUMINOUS EFFECT BURNERS
B29.6 Scope
B29.7 Principle
B29.8 Apparatus
B29.9 Materials
B29.10 Preparation of apparatus
B29.11 Procedure
B29.12 Result
B30 M.O.T. 4.18—LIGHT BACK TEST—UNFLUED HEATERS WITH CONCEALED BURNERS
B30.6 Scope
B30.7 Principle
B30.8 Apparatus
B30.9 Materials
B30.10 Preparation of apparatus
B30.11 Procedure
B30.12 Result
B31 M.O.T. 5.2.1—COMBUSTION PRODUCT IMPINGEMENT ON WALL
B31.6 Scope
B31.7 Principle
B31.8 Apparatus
B31.9 Materials
B31.10 Preparation of apparatus
B31.11 Procedure
B31.12 Result
B32 M.O.T. 5.2.2—FLUE OPERATION—SPILLAGE TEST
B32.6 Scope
B32.7 Principle
B32.8 Apparatus
B32.9 Materials
B32.10 Preparation of apparatus
B32.11 Procedure
B32.12 Result
B33 M.O.T. 5.2.4.1—DETERMINATION OF CO/CO2 RATIO OF COMBUSTION PRODUCTS UNDER CONDITIONS OF FLUE BLOCKAGE, DOWNDRAUGHT OR UPDRAUGHT—NATURAL DRAUGHT, OPEN FLUED APPLIANCES
B33.6 Scope
B33.7 Principle
B33.8 Apparatus
B33.9 Materials
B33.10 Preparation of apparatus
B33.11 Procedure
B33.12 Result
B34 M.O.T. 5.2.4.2—DETERMINATION OF CO/CO2 RATIO OF COMBUSTION PRODUCTS UNDER CONDITIONS OF FLUE BLOCKAGE, DOWNDRAUGHT OR UPDRAUGHT—FORCED OR INDUCED DRAUGHT, OPEN FLUED APPLIANCES
B34.6 Scope
B34.7 Principle
B34.8 Apparatus
B34.9 Materials
B34.10 Preparation of apparatus
B34.11 Procedure
B34.12 Result
B35 M.O.T. 5.3.1 (a)—RADIANT EFFICIENCY—RADIANT HEATERS
B35.6 Scope
B35.7 Principle
B35.8 Apparatus
B35.9 Materials
B35.10 Preparation of apparatus
B35.11 Procedure
B35.12 Calculation
B35.13 Result
B36 M.O.T. 5.3.1(b)/(c) and 5.3.3—THERMAL EFFICIENCY—CONVECTION, RADIANT CONVECTION AND ROOM SEALED HEATERS
B36.6 Scope
B36.7 Principle
B36.8 Apparatus
B36.9 Materials
B36.10 Preparation of apparatus
B36.11 Procedure (for open flued appliances)
B36.12 Procedure (for room sealed appliances)
B36.13 Calculation
B36.14 Result
B37 M.O.T. 5.3.4—REAR REGISTER TEST—RECESSED HEATER
B37.6 Scope
B37.7 Principle
B37.8 Apparatus
B37.9 Materials
B37.10 Preparation of apparatus
B37.11 Procedure
B37.12 Result
B38 M.O.T. 5.3.5—FLUE TERMINAL WIND TEST
B38.6 Scope
B38.7 Principle
B38.8 Apparatus
B38.9 Materials
B38.10 Preparation of apparatus
B38.11 Procedure
B38.12 Result
B39 M.O.T. 5.3.6—FLUE GAS TEMPERATURE TEST
B39.6 Scope
B39.7 Principle
B39.8 Apparatus
B39.9 Materials
B39.10 Preparation of apparatus
B39.11 Procedure
B39.12 Result
B40 M.O.T. 5.5.3—BLOCKED CONDENSATE DRAIN
B40.6 Scope
B40.7 Principle
B40.8 Apparatus
B40.9 Materials
B40.10 Preparation of apparatus
B40.11 Procedure
B40.12 Result
B41 M.O.T. 5.6.1/2—FLAME ABNORMALITY ON PROGRESSIVE AIR SUPPLY RESTRICTION
B41.6 Scope
B41.7 Principle
B41.8 Apparatus
B41.9 Materials
B41.10 Preparation of apparatus
B41.11 Procedure
B41.12 Result
B42 M.O.T. 5.6.3/4 AND 2.3.1—SAFE PERFORMANCE WITH ELECTRICITY SUPPLY VARIATION
B42.6 Scope
B42.7 Principle
B42.8 Apparatus
B42.9 Materials
B42.10 Preparation of apparatus
B42.11 Procedure
B42.12 Result
B43 M.O.T. 5.7—TEMPERATURE HAZARDS
B43.6 Scope
B43.7 Principle
B43.8 Apparatus
B43.9 Materials
B43.10 Preparation of apparatus
B43.11 Procedure
B43.12 Result
B44 M.O.T. 5.7.4.5—TEMPERATURE HAZARDS—ELECTRIC MOTORS
B44.6 Scope
B44.7 Principle
B44.8 Apparatus
B44.9 Materials
B44.10 Preparation of apparatus
B44.11 Procedure
B44.12 Calculations
B44.13 Result
B45 M.O.T. 5.8.1—HEAT RESISTANCE—OVERLOAD CONDITION
B45.6 Scope
B45.7 Principle
B45.8 Apparatus
B45.9 Materials
B45.10 Preparation of apparatus
B45.11 Procedure
B45.12 Result
B46 M.O.T. 5.8.2—HEAT RESISTANCE—LIGHT BACK CONDITION
B46.6 Scope
B46.7 Principle
B46.8 Apparatus
B46.9 Materials
B46.10 Preparation of apparatus
B46.11 Result
B47 M.O.T. 5.9.1/2—HEAT EXCHANGERS, MAXIMUM AND MINIMUM TEMPERATURE TEST
B47.6 Scope
B47.7 Principle
B47.8 Apparatus
B47.9 Materials
B47.10 Preparation of apparatus
B47.11 Procedure
B47.12 Result
B48 M.O.T. 5.10.1—SAFETY SYSTEM TEST
B48.6 Scope
B48.7 Principle
B48.8 Materials
B48.9 Apparatus
B48.10 Preparation of apparatus
B48.11 Procedure
B48.12 Result
B49 M.O.T. 5.10.2—VITIATION TEST
B49.6 Scope
B49.7 Principle
B49.8 Materials
B49.9 Apparatus
B49.10 Preparation of apparatus
B49.11 Procedure
B49.12 Result
B50 M.O.T. 5.10.3—COMBUSTION TEST AT REDUCED APPLIANCE INLET PRESSURE
B50.6 Scope
B50.7 Principle
B50.8 Apparatus
B50.9 Materials
B50.10 Preparation of apparatus
B50.11 Procedure
B50.12 Result
B51 M.O.T. 5.10.4/5 and 5.17—EMISSION TESTING AND EMISSION LABELLING
B51.6 Scope
B51.7 Principle
B51.8 Materials
B51.9 Apparatus
B51.10 Preparation of apparatus
B51.11 Procedure
B51.12 Calculations
B51.13 Result
B52 M.O.T. 5.11—WIND TEST—ROOM SEALED APPLIANCES
B52.6 Scope
B52.7 Principle
B52.8 Apparatus
B52.9 Materials
B52.10 Preparation of apparatus
B52.11 Procedure
B52.12 Result
B53 M.O.T. 5.12.1—THERMOSTAT CHARACTERISTICS—SNAP ACTING THERMOSTATS
B53.6 Scope
B53.7 Principle
B53.8 Apparatus
B53.9 Materials
B53.10 Preparation of apparatus
B53.11 Procedure
B53.12 Result
B54 M.O.T. 5.12.2—THERMOSTAT OPERATION
B54.6 Scope
B54.7 Principle
B54.8 Apparatus
B54.9 Materials
B54.10 Preparation of apparatus
B54.11 Procedure
B54.12 Result
B55 M.O.T. 5.13.1/2/3—LINTING TEST
B55.6 Scope
B55.7 Principle
B55.8 Apparatus
B55.9 Materials
B55.10 Preparation of apparatus
B55.11 Procedure
B55.12 Result
B56 M.O.T. 5.14.1—RAIN RESISTANCE OF FLUE TERMINALS OF ROOM SEALED APPLIANCES
B56.6 Scope
B56.7 Principle
B56.8 Apparatus
B56.9 Materials
B56.10 Preparation of apparatus
B56.11 Procedure
B56.12 Result
B57 M.O.T. 5.15.1—PORTABLE APPLIANCES—STABILITY TEST
B57.6 Scope
B57.7 Principle
B57.8 Apparatus
B57.9 Procedure
B57.10 Result
B58 M.O.T. 5.15.2—FLOOR LOADING TEST
B58.6 Scope
B58.7 Principle
B58.8 Apparatus
B58.9 Procedure
B58.10 Result
B59 M.O.T. 5.15.3—STRENGTH—LOADING TEST
B59.6 Scope
B59.7 Principle
B59.8 Apparatus
B59.9 Preparation of apparatus
B59.10 Procedure
B59.11 Result
B60 M.O.T. 5.16.1—ENERGY LABELLING TEST
B60.6 Scope
B60.7 Principle
B60.8 Apparatus
B60.9 Materials
B60.10 Preparation of apparatus
B60.11 Procedure
B60.12 Result
APPENDIX C - METER VOLUME CORRECTION FACTORS
APPENDIX D - GUIDELINES ON PROVIDING WRITTEN APPLIANCE SPECIFICATIONS
APPENDIX E - FLUE GAS SAMPLING AND TEMPERATURE MEASUREMENT
APPENDIX F - FLUE SAMPLING METHOD FOR SMALL FLUES
APPENDIX G - DESIGN OF TESTING DUCT FOR WALL FURNACES FITTED WITH REAR REGISTERS
APPENDIX H - TESTING APPARATUS FOR PRIMARY GUARDS
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Related Information
Gas (Safety And Measurement) Regulations 2010
Ministry: WorkSafe New Zealand: Energy Safety
Section: Schedule 2A4
Citation context:Part 1 is listed as an applicable standard for balanced flue convection heaters, flueless convection heaters, flued radiant/convection heaters, flueless radiant/convection heaters, miscellaneous heaters, and wall furnesses.
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NZS AS 4553(Int) .1 and .2:2013
COMMITTEE REPRESENTATION
ACKNOWLEDGEMENT
COPYRIGHT
NZS AS 4553.1(Int):2013
LATEST REVISIONS
Foreword
Outcome statement
CLAUSE
NZS AS 4553.2(Int):2013
Foreword
Outcome statement
CLAUSE
COMMENT FORM
AS 4553—2008 GAS SPACE HEATING APPLIANCES
PREFACE
CONTENTS
SECTION 1 SCOPE AND GENERAL
1.1 SCOPE
1.2 REFERENCE DOCUMENTS
1.3 DEFINITIONS
1.3.1 Appliance flueway
1.3.2 Appliance flueway terminal
1.3.3 Appliance regulator
1.3.4 Appliance ventilation duct
1.3.5 Atmospheric burner
1.3.6 Authority having jurisdiction
1.3.7 Automatic ignition
1.3.8 Automatic operation
1.3.9 Automatic shut off valve
1.3.10 Available gas (line gas)
1.3.11 Balanced flue appliance
1.3.12 Burner port
1.3.13 Bypass
1.3.14 Calibration
1.3.15 Certified/Certification
1.3.16 Certifying Body
1.3.17 CO/CO2 ratio
1.3.18 Combination gas control
1.3.19 Combustible materials
1.3.20 Combustion products
1.3.21 Combustion products discharge safety device
1.3.22 Compression fitting
1.3.23 Convection heater
1.3.24 Cross lighting
1.3.25 Determined gas consumption
1.3.26 Direct ignition device
1.3.27 Draught diverter
1.3.28 Electronic flame safeguard
1.3.29 Emission class
1.3.30 Excess air
1.3.31 External surfaces
1.3.32 Fan assisted combustion system
1.3.33 Flame abnormality
1.3.34 Flame detector
1.3.35 Flame establishment period
1.3.36 Flame failure response time
1.3.37 Flame proving period
1.3.38 Flame safeguard
1.3.39 Flame safeguard system
1.3.40 Flash tube
1.3.41 Flue
1.3.42 Flue connection
1.3.43 Flue cowl
1.3.44 Flue gases
1.3.45 Flue system
1.3.46 Flue terminal
1.3.47 Forced draught
1.3.48 Gas
1.3.49 Gas consumption
1.3.50 Heat sources
1.3.51 Heating value, gross (at constant pressure)
1.3.52 Hose assembly
1.3.53 Indoor flueless appliance
1.3.54 Induced draught
1.3.55 Injector
1.3.56 Intermittent pilot
1.3.57 Interrupted pilot
1.3.58 Jointing compound
1.3.59 Jointing material
1.3.60 Lift (flame)
1.3.61 Light back
1.3.62 Linting
1.3.63 Lockout
1.3.64 LPG
1.3.65 Manual ignition
1.3.66 Maximum useful heat output (MUHO)
1.3.67 Mixing tube
1.3.68 Natural draught burner
1.3.69 Natural gas
1.3.70 Nominal gas consumption
1.3.71 Nominal test point pressure
1.3.72 Normal test gas pressure
1.3.73 Open flued appliance
1.3.74 Overheat cut-off device
1.3.75 Overload gas consumption
1.3.76 Over-temperature cut-out device
1.3.77 Oxygen depletion system (ODS)
1.3.78 Permanent pilot
1.3.79 Pilot
1.3.80 Portable appliance
1.3.81 Power flued
1.3.82 Primary aeration control
1.3.83 Primary air
1.3.84 Primary air ports
1.3.85 Primary flue
1.3.86 Primary guard
1.3.87 Programmable electronic system (PES)
1.3.88 Programmed ignition
1.3.89 Programming flame safeguard
1.3.90 Protected pilot
1.3.91 Purge volume
1.3.92 Quick-connect device
1.3.93 Radiant convection heater
1.3.94 Radiant heater
1.3.95 Recessed wall heater
1.3.96 Reference gas
1.3.97 Relative density
1.3.98 Room sealed appliance
1.3.99 Safety shutdown
1.3.100 Safety shut off system
1.3.101 Safety shut off valve
1.3.102 Secondary air
1.3.103 Secondary flue
1.3.104 Secondary guard
1.3.105 Self-latching gas valve
1.3.106 Simulated natural gas (SNG)
1.3.107 Specific gravity
1.3.108 Spillage
1.3.109 Star allocation index (SAI)
1.3.110 Start gas
1.3.111 Surface combustion burner
1.3.112 Technical Regulator
1.3.113 Temperature limit device
1.3.114 Tempered liquefied petroleum gas (TLP)
1.3.115 Test gases
1.3.116 Thermostat
1.3.117 Thermostat bypass
1.3.118 Town gas
1.3.119 Turndown gas consumption
1.3.120 Valve
1.3.121 Wobbe index (Wobbe number)
1.3.122 Working surfaces
SECTION 2 DESIGN AND CONSTRUCTION
2.1 GENERAL
2.1.1 Preliminary specification
2.1.2 Physical inspection
2.1.3 Certification of safety components
2.1.4 Programmable electronic systems
2.1.5 Manual shut off gas valves
2.1.6 Classification of safety shut off valves
2.1.7 Compliance of electrical components
2.1.8 Power failure
2.1.9 Fuel storage container
2.1.10 Prohibited burner systems
2.1.11 Positioning of logs or coals
2.1.12 Provision for moving appliances
2.1.13 Sharp edges
2.1.14 Handles and knobs
2.1.15 Continuity of satisfactory operation
2.1.16 Insulation
2.1.17 Protection of vitreous enamel
2.1.18 Means of support
2.1.19 Compliance in alternative forms
2.1.20 Means of ignition for room sealed appliances
2.1.21 Locking means for adjusting devices
2.1.22 Fitting of primary guard
2.1.23 Means for gas pressure measurement
2.1.24 Provision for removal of condensate
2.2 MATERIALS
2.2.1 General
2.2.2 Materials containing asbestos
2.2.3 Materials in contact with gas
2.2.4 Material used in gas appliances
2.2.5 Zinc based alloys
2.2.6 Components required to be placed in a flame
2.2.7 Materials used in electrical construction
2.2.8 Spark electrodes
2.2.9 Protection of aluminium tubing
2.2.10 Thermal insulation
2.2.11 Compression fittings
2.3 ELECTRICAL SYSTEMS
2.3.1 Connection to the mains electrical supply
2.3.2 Accessibility to electrical components
2.3.3 Connection of electrical components
2.3.4 Plug and socket connections
2.3.5 Protection against accidental contact
2.3.6 Protection of low voltage electrical components and wiring
2.3.7 Motor bearings suitability
2.4 INSTALLATION REQUIREMENTS
2.4.1 Fixing of gas inlet connection
2.4.2 Gas inlet connection thread
2.4.3 Access to connections
2.5 MAINTENANCE REQUIREMENTS
2.5.1 Dismantling and replacement by the user
2.5.2 Insertion and removal of gas injectors
2.5.3 Assembly and attachment of handles, dials and pointers
2.5.4 Accessibility for adjustment
2.5.5 Accessibility for replacement
2.5.6 Screwed connections
2.5.7 Inaccessible nuts or bolts
2.6 PRESSURE REGULATORS
2.6.1 Provision of a pressure regulating device
2.6.2 Positioning of pressure regulators
2.7 GAS CONTROLS AND SAFETY SHUT OFF SYSTEMS
2.7.1 General
2.7.2 Accessibility by the user
2.7.3 Accidental change of settings of valves, dials and pointers
2.7.4 Fitting of self-latching valves
2.7.5 Provision of flame safeguard
2.7.6 Flueless appliances—additional shut off provision
2.7.7 Tilt shut off
2.7.8 Main burner shut off provision
2.7.9 Automatic reignition means
2.7.10 Safety controls for exposed burners
2.7.11 Main burner automatic shut off valve
2.8 COMBUSTION AIR SUPPLY AND CONTROLS
2.8.1 Combustion air supply equipment
2.8.2 Combustion air flow proving interlock
2.8.3 Prevention of combustion air backflow
2.9 IGNITION, PILOTS AND MAIN BURNERS
2.9.1 Burners with remote manual ignition
2.9.2 Burners with direct manual ignition
2.9.3 Prevention of injury at ignition
2.9.4 Manually operated burners in an enclosed compartment
2.9.5 Burners interconnected by flues or passages
2.9.6 Means for turning off pilot burner gas supply
2.9.7 Viewing of flames
2.9.8 Proving of burner or pilot ignition
2.9.9 Positive location of flash lighting tubes
2.9.10 Support of pilots, igniters and flame sensing devices
2.9.11 Location of burner mixing tubes
2.9.12 Burner supports
2.9.13 Fixing of gas manifolds
2.9.14 Protection of ports and injectors
2.9.15 Restriction on gauze over primary air ports
2.9.16 Pilot gas filters
2.9.17 Aeration adjustment for Universal LPG appliances
2.10 FLUEING REQUIREMENTS
2.10.1 Design of air entry and combustion product discharge
2.10.2 Design of flue connection
2.10.3 Flue terminal and draught diverter construction
2.10.4 Flue terminal openings
2.10.5 Safety shutdown—combustion products limits
2.11 MARKINGS AND LABELS
2.11.1 Indication of function
2.11.2 Markings on packaging or appliance
2.11.3 Flueless appliances additional markings on packaging
2.11.4 Gas type label
2.11.5 Appliances for use with a flexible connection
2.11.6 Gas type colour code
2.11.7 Identification of injectors
2.11.8 Marking of radiants
2.11.9 Marking of fans
2.11.10 Markings on appliances
2.11.11 Marking of doors and covers
2.11.12 Warning label regarding removing of components
2.11.13 Flue terminal marking
2.11.14 Markings for primary guards
2.11.15 Energy label
2.11.16 Emission label
2.12 INSTRUCTIONS
2.12.1 Documents remaining with user
2.12.2 Installation instructions
2.12.3 Operating instructions
2.12.4 Servicing instructions
2.12.5 Inclusion of warning to prohibit unauthorized servicing
SECTION 3 PRELIMINARY TESTS—LINE GASES
3.1 GENERAL
3.1.1 Introduction
3.1.2 Test gases
3.1.3 Appliances designed for various flue configurations
3.2 PREPARATION FOR TESTING
3.2.1 Electrical safety requirements (earth leakage)
3.2.2 Setting up appliance for testing
3.2.3 Appliance regulators not to be removed during testing
3.2.4 Protection from accidental draughts
3.2.5 Prevention of gas rate variation
3.2.6 Gas pressure and gas volume test equipment
3.3 PRIMARY GUARD AND GRILLE
3.3.1 Primary guard attachment
3.3.2 Primary guard openings
3.3.3 Protection from contact with the heat source
3.3.4 Fabric drape test
3.3.5 Impact resistance
3.3.6 Surface finish
3.4 GAS LEAKAGE
3.4.1 Gas circuit soundness
3.4.2 Control of bleed line gas
3.5 GAS CONSUMPTION
3.5.1 Tolerance on determined gas consumption
3.5.2 Determined gas consumption of permanent pilots
3.6 GAS PRESSURE REGULATORS
3.6.1 Pressure regulator performance
3.7 IGNITION AND SAFETY SHUT OFF SYSTEMS
3.7.1 Requirements applicable to all
3.7.2 Automatic burner ignition systems—Additional requirements
SECTION 4 LIMIT GAS TESTS
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 ABNORMALITY
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 NOISE OF EXTINCTION
4.10 BURNER STABILITY WHEN CHANGING SETTING
4.11 PILOT IGNITION AND STABILITY AT MAXIMUM AND MINIMUM LIMITING CONDITIONS
4.12 EFFECT OF OPENING AND CLOSING DOORS AT TURNDOWN CONDITION
4.13 UNBURNT GAS RELEASE FROM BURNER SYSTEM
4.14 BURNER INTERFERENCE AT IGNITION OR DURING COMBUSTION
4.15 BLOCKED FLUEWAY TERMINAL
4.16 CASE PRESSURE
4.17 SOOTING—LUMINOUS EFFECT APPLIANCES
4.18 LIGHT BACK IN UNFLUED APPLIANCES WITH CONCEALED BURNER(S)
SECTION 5 PERFORMANCE TESTS
5.1 GENERAL
5.2 FLUE OPERATION
5.2.1 Diversion of combustion products
5.2.2 Spillage of combustion products
5.2.3 Circulating air system
5.2.4 Performance with updraught, downdraught and blocked flue
5.3 THERMAL EFFICIENCY
5.3.1 General
5.3.2 Flued forced convection and flued forced radiant convection heaters
5.3.3 Reduction in thermal efficiency with maximum flue length
5.3.4 Rear registers
5.3.5 Thermal efficiency in wind conditions
5.3.6 Flue gases temperatures
5.4 NOISE OF OPERATION
5.5 CONDENSATION
5.5.1 Control of flue gas condensate
5.5.2 Condensate interference with combustion
5.5.3 Blocked condensate drain
5.6 COMBUSTION AIR SUPPLY
5.6.1 Combustion air flow proving
5.6.2 Obstruction of air inlets on appliances with fan assisted combustion systems
5.6.3 Power failure
5.6.4 Response to electrical power variation or failure
5.7 TEMPERATURE HAZARDS
5.7.1 Test conditions
5.7.2 Surrounding surfaces—Temperature limits
5.7.3 Personal safety—Temperature limits
5.7.4 Appliance safety—Temperature limits
5.8 HEAT RESISTANCE
5.8.1 Resistance to temperatures—overload conditions
5.8.2 Resistance to temperatures—burners lit back
5.9 DURABILITY OF HEAT EXCHANGERS
5.9.1 Minimum temperature requirements of heat exchangers during warming-up period
5.9.2 Maximum temperature requirements for heat exchanger materials
5.10 VITIATION AND EMISSIONS TESTS
5.10.1 Limiting operating conditions
5.10.2 Operation of oxygen depletion system
5.10.3 CO/CO2 ratio of the combustion products at 20% of the nominal appliance inlet pressure
5.10.4 Nitrogen dioxide emission rate
5.10.5 CO/CO2 ratio at the manufacturer's specified test point pressure
5.11 WIND TEST - ROOM SEALED APPLIANCES
5.11.1 Power flued appliances
5.11.2 Sealing of room sealed appliances
5.11.3 Failure of the fan
5.11.4 Pilot burner ignition under wind conditions
5.11.5 Pilot burner stability under wind conditions
5.11.6 Main burner ignition under wind conditions
5.11.7 Flame safeguard operation under wind conditions
5.11.8 Appliance operation under wind conditions
5.11.9 Appliance safety under wind conditions
5.12 ROOM TEMPERATURE CONTROLS
5.12.1 Appliance temperature controls
5.12.2 Location of temperature controls
5.13 LINTING TESTS
5.13.1 Appliance operation under linting conditions
5.13.2 Construction of aeration controls
5.13.3 Protection of fan and motor bearings
5.14 RAIN TEST
5.14.1 Room sealed appliances
5.15 STRENGTH AND STABILITY
5.15.1 Tilt test
5.15.2 Bearing pressure of floor mounted appliances
5.15.3 Strength of flue connection
5.16 ENERGY LABELLING
5.17 EMISSION LABELLING
5.18 SPECIFICATIONS
APPENDIX A - FIGURES A1 TO A16
APPENDIX B - METHODS OF TEST
B1 M.O.T. 2.2.5 (c)—ZINC ALLOY TEST
B1.1 Scope
B1.2 Principle
B1.3 Apparatus
B1.4 Procedure
B1.5 Result
B2 M.O.T. 2.10.5(a)—SPILLAGE MONITORING SYSTEM FOR APPLIANCES WITH AN ATMOSPHERE SENSING DEVICE
B2.1 Scope
B2.2 Principle
B2.3 Materials
B2.4 Apparatus
B2.5 Preparation of apparatus
B2.6 Procedure
B2.7 Result
B3 M.O.T. 2.10.5(b)—SPILLAGE MONITORING SYSTEM TEST FOR APPLIANCES WITH A COMBUSTION PRODUCTS DISCHARGE SAFETY DEVICE
B3.1 Principle
B3.2 Apparatus
B3.3 Materials
B3.4 Preparation of apparatus
B3.5 Procedure
B3.6 Result
B4 M.O.T. 2.11—MARKINGS AND LABELS
B4.1 Scope
B4.2 Principle
B4.3 Apparatus
B4.4 Materials
B4.5 Procedure
B4.6 Result
B5 M.O.T. 3.3.1—DETERMINATION OF INTEGRITY OF THE PRIMARY GUARD
B5.1 Scope
B5.2 Principle
B5.3 Apparatus
B5.4 Preparation of apparatus
B5.5 Procedure
B5.6 Result
B6 M.O.T. 3.3.4–02FABRIC DRAPE TEST
B6.1 Scope
B6.2 Principle
B6.3 Apparatus
B6.4 Materials
B6.5 Preparation of apparatus
B6.6 Procedure
B6.7 Result
B7 M.O.T. 3.3.5—DETERMINATION OF THE RESISTANCE OF PRIMARY GUARDS TO IMPACT
B7.1 Scope
B7.2 Principle
B7.3 Apparatus
B7.4 Preparation of apparatus
B7.5 Procedure
B7.6 Result
B8 M.O.T. 3.4.1—GAS LEAKAGE
B8.1 Scope
B8.2 Principle
B8.3 Apparatus
B8.4 Materials
B8.5 Preparation of apparatus
B8.6 Procedure
B8.7 Result
B9 M.O.T. 3.5.1/2—GAS CONSUMPTION
B9.1 Scope
B9.2 Principle
B9.3 Apparatus
B9.4 Materials
B9.5 Preparation of apparatus
B9.6 Procedure
B9.7 Result
B10 M.O.T. 3.6.1—GAS PRESSURE REGULATOR PERFORMANCE
B10.1 Scope
B10.2 Principle
B10.3 Apparatus
B10.4 Materials
B10.5 Preparation of apparatus
B10.6 Procedure
B10.7 Result
B11 M.O.T. 3.7.1.1/3.7.1.4—IGNITION—AERATED PILOTS
B11.1 Scope
B11.2 Principle
B11.3 Apparatus
B11.4 Materials
B11.5 Preparation of apparatus
B11.6 Procedure
B11.7 Results
B12 M.O.T. 3.7.1.2/3.7.1.4—IGNITION OF A BURNER PROTECTED BY A FLAME SAFEGUARD SYSTEM
B12.1 Scope
B12.2 Principle
B12.3 Apparatus
B12.4 Materials
B12.5 Preparation of apparatus
B12.6 Procedure
B12.7 Result
B13 M.O.T. 3.7.1.5—IGNITION—OPENING OF FLAME SAFEGUARD SYSTEM
B13.1 Scope
B13.2 Principle
B13.3 Apparatus
B13.4 Materials
B13.5 Preparation of apparatus
B13.6 Procedure
B13.7 Result
B14 M.O.T. 3.7.1.14—OPERATION OF SAFETY SHUT OFF SYSTEM
B14.1 Scope
B14.2 Principle
B14.3 Materials
B14.4 Apparatus
B14.5 Preparation of apparatus
B14.6 Procedure
B14.7 Result
B15 M.O.T. 3.7.2.1.2/3.7.2.2.1—START FLAME ESTABLISHMENT PERIOD DELAYED IGNITION TESTS
B15.1 Scope
B15.2 Principle
B15.3 Apparatus
B15.4 Materials
B15.5 Preparation of apparatus
B15.6 Procedure
B15.7 Result
B16 M.O.T. 3.7.2.1.4—AUTOMATIC BURNER IGNITION SYSTEMS FOR ATMOSPHERIC BURNERS
B16.1 Scope
B16.2 Principle
B16.3 Apparatus
B16.4 Materials
B16.5 Preparation of apparatus
B16.6 Procedure
B16.7 Result
B17 M.O.T. 4.2—DETERMINATION OF CO/CO2 RATIO OF COMBUSTION PRODUCTS—SURFACE COMBUSTION BURNERS—UNDERLOAD
B17.1 Scope
B17.2 Principle
B17.3 Apparatus
B17.4 Materials
B17.5 Preparation of apparatus
B17.6 Procedure
B17.7 Result
B18 M.O.T. 4.3—DETERMINATION OF CO/CO2 RATIO OF COMBUSTION PRODUCTS—INDEPENDENT BURNER—OVERLOAD
B18.1 Scope
B18.2 Principle
B18.3 Apparatus
B18.4 Materials
B18.5 Preparation of apparatus
B18.6 Procedure
B18.7 Result
B19 M.O.T. 4.4—DETERMINATION OF CO/CO2 RATIO OF COMBUSTION PRODUCTS—PERMANENT PILOTS—OVERLOAD
B19.1 Scope
B19.2 Principle
B19.3 Apparatus
B19.4 Materials
B19.5 Preparation of apparatus
B19.6 Procedure
B19.7 Result
B20 M.O.T. 4.5—FLAME ABNORMALITY
B20.1 Scope
B20.2 Principle
B20.3 Apparatus
B20.4 Materials
B20.5 Preparation of apparatus
B20.6 Procedure
B20.7 Result
B21 M.O.T. 4.6—IGNITION TESTS
B21.6 Scope
B21.7 Principle
B21.8 Apparatus
B21.9 Materials
B21.10 Preparation of apparatus
B21.11 Procedure
B21.12 Result
B22 M.O.T. 4.7/2.9.4—DELAYED IGNITION TEST
B22.6 Scope
B22.7 Principle
B22.8 Apparatus
B22.9 Materials
B22.10 Preparation of apparatus
B22.11 Procedure
B22.12 Result
B23 M.O.T. 4.8—FLAME STABILITY TO DRAUGHT
B23.6 Scope
B23.7 Principle
B23.8 Apparatus
B23.9 Materials
B23.10 Preparation of apparatus
B23.11 Procedure
B23.12 Result
B24 M.O.T. 4.11—PILOT FLAMES—IGNITION AND STABILITY
B24.6 Scope
B24.7 Principle
B24.8 Apparatus
B24.9 Materials
B24.10 Preparation of apparatus
B24.11 Procedure
B24.12 Result
B25 M.O.T. 4.12—EFFECT OF APPLIANCE DOOR OPERATION ON BURNER STABILITY
B25.6 Scope
B25.7 Principle
B25.8 Apparatus
B25.9 Materials
B25.10 Preparation of apparatus
B25.11 Procedure
B25.12 Result
B26 M.O.T. 4.13–BURNER OPERATION—UNBURNT GAS SPILLAGE FROM BURNER SYSTEM
B26.6 Scope
B26.7 Principle
B26.8 Apparatus
B26.9 Materials
B26.10 Preparation of apparatus
B26.11 Procedure
B26.12 Result
B27 M.O.T. 4.15—BURNER FLAME STABILITY—BLOCKED FLUEWAY TERMINAL
B27.6 Scope
B27.7 Principle
B27.8 Apparatus
B27.9 Materials
B27.10 Preparation for test
B27.11 Procedure
B27.12 Result
B28 M.O.T. 4.16—CASE PRESSURE TEST
B28.6 Scope
B28.7 Principle
B28.8 Apparatus
B28.9 Materials
B28.10 Preparation of apparatus
B28.11 Procedure
B28.12 Result
B29 M.O.T. 4.17—SOOTING TEST—LUMINOUS EFFECT BURNERS
B29.6 Scope
B29.7 Principle
B29.8 Apparatus
B29.9 Materials
B29.10 Preparation of apparatus
B29.11 Procedure
B29.12 Result
B30 M.O.T. 4.18—LIGHT BACK TEST—UNFLUED HEATERS WITH CONCEALED BURNERS
B30.6 Scope
B30.7 Principle
B30.8 Apparatus
B30.9 Materials
B30.10 Preparation of apparatus
B30.11 Procedure
B30.12 Result
B31 M.O.T. 5.2.1—COMBUSTION PRODUCT IMPINGEMENT ON WALL
B31.6 Scope
B31.7 Principle
B31.8 Apparatus
B31.9 Materials
B31.10 Preparation of apparatus
B31.11 Procedure
B31.12 Result
B32 M.O.T. 5.2.2—FLUE OPERATION—SPILLAGE TEST
B32.6 Scope
B32.7 Principle
B32.8 Apparatus
B32.9 Materials
B32.10 Preparation of apparatus
B32.11 Procedure
B32.12 Result
B33 M.O.T. 5.2.4.1—DETERMINATION OF CO/CO2 RATIO OF COMBUSTION PRODUCTS UNDER CONDITIONS OF FLUE BLOCKAGE, DOWNDRAUGHT OR UPDRAUGHT—NATURAL DRAUGHT, OPEN FLUED APPLIANCES
B33.6 Scope
B33.7 Principle
B33.8 Apparatus
B33.9 Materials
B33.10 Preparation of apparatus
B33.11 Procedure
B33.12 Result
B34 M.O.T. 5.2.4.2—DETERMINATION OF CO/CO2 RATIO OF COMBUSTION PRODUCTS UNDER CONDITIONS OF FLUE BLOCKAGE, DOWNDRAUGHT OR UPDRAUGHT—FORCED OR INDUCED DRAUGHT, OPEN FLUED APPLIANCES
B34.6 Scope
B34.7 Principle
B34.8 Apparatus
B34.9 Materials
B34.10 Preparation of apparatus
B34.11 Procedure
B34.12 Result
B35 M.O.T. 5.3.1 (a)—RADIANT EFFICIENCY—RADIANT HEATERS
B35.6 Scope
B35.7 Principle
B35.8 Apparatus
B35.9 Materials
B35.10 Preparation of apparatus
B35.11 Procedure
B35.12 Calculation
B35.13 Result
B36 M.O.T. 5.3.1(b)/(c) and 5.3.3—THERMAL EFFICIENCY—CONVECTION, RADIANT CONVECTION AND ROOM SEALED HEATERS
B36.6 Scope
B36.7 Principle
B36.8 Apparatus
B36.9 Materials
B36.10 Preparation of apparatus
B36.11 Procedure (for open flued appliances)
B36.12 Procedure (for room sealed appliances)
B36.13 Calculation
B36.14 Result
B37 M.O.T. 5.3.4—REAR REGISTER TEST—RECESSED HEATER
B37.6 Scope
B37.7 Principle
B37.8 Apparatus
B37.9 Materials
B37.10 Preparation of apparatus
B37.11 Procedure
B37.12 Result
B38 M.O.T. 5.3.5—FLUE TERMINAL WIND TEST
B38.6 Scope
B38.7 Principle
B38.8 Apparatus
B38.9 Materials
B38.10 Preparation of apparatus
B38.11 Procedure
B38.12 Result
B39 M.O.T. 5.3.6—FLUE GAS TEMPERATURE TEST
B39.6 Scope
B39.7 Principle
B39.8 Apparatus
B39.9 Materials
B39.10 Preparation of apparatus
B39.11 Procedure
B39.12 Result
B40 M.O.T. 5.5.3—BLOCKED CONDENSATE DRAIN
B40.6 Scope
B40.7 Principle
B40.8 Apparatus
B40.9 Materials
B40.10 Preparation of apparatus
B40.11 Procedure
B40.12 Result
B41 M.O.T. 5.6.1/2—FLAME ABNORMALITY ON PROGRESSIVE AIR SUPPLY RESTRICTION
B41.6 Scope
B41.7 Principle
B41.8 Apparatus
B41.9 Materials
B41.10 Preparation of apparatus
B41.11 Procedure
B41.12 Result
B42 M.O.T. 5.6.3/4 AND 2.3.1—SAFE PERFORMANCE WITH ELECTRICITY SUPPLY VARIATION
B42.6 Scope
B42.7 Principle
B42.8 Apparatus
B42.9 Materials
B42.10 Preparation of apparatus
B42.11 Procedure
B42.12 Result
B43 M.O.T. 5.7—TEMPERATURE HAZARDS
B43.6 Scope
B43.7 Principle
B43.8 Apparatus
B43.9 Materials
B43.10 Preparation of apparatus
B43.11 Procedure
B43.12 Result
B44 M.O.T. 5.7.4.5—TEMPERATURE HAZARDS—ELECTRIC MOTORS
B44.6 Scope
B44.7 Principle
B44.8 Apparatus
B44.9 Materials
B44.10 Preparation of apparatus
B44.11 Procedure
B44.12 Calculations
B44.13 Result
B45 M.O.T. 5.8.1—HEAT RESISTANCE—OVERLOAD CONDITION
B45.6 Scope
B45.7 Principle
B45.8 Apparatus
B45.9 Materials
B45.10 Preparation of apparatus
B45.11 Procedure
B45.12 Result
B46 M.O.T. 5.8.2—HEAT RESISTANCE—LIGHT BACK CONDITION
B46.6 Scope
B46.7 Principle
B46.8 Apparatus
B46.9 Materials
B46.10 Preparation of apparatus
B46.11 Result
B47 M.O.T. 5.9.1/2—HEAT EXCHANGERS, MAXIMUM AND MINIMUM TEMPERATURE TEST
B47.6 Scope
B47.7 Principle
B47.8 Apparatus
B47.9 Materials
B47.10 Preparation of apparatus
B47.11 Procedure
B47.12 Result
B48 M.O.T. 5.10.1—SAFETY SYSTEM TEST
B48.6 Scope
B48.7 Principle
B48.8 Materials
B48.9 Apparatus
B48.10 Preparation of apparatus
B48.11 Procedure
B48.12 Result
B49 M.O.T. 5.10.2—VITIATION TEST
B49.6 Scope
B49.7 Principle
B49.8 Materials
B49.9 Apparatus
B49.10 Preparation of apparatus
B49.11 Procedure
B49.12 Result
B50 M.O.T. 5.10.3—COMBUSTION TEST AT REDUCED APPLIANCE INLET PRESSURE
B50.6 Scope
B50.7 Principle
B50.8 Apparatus
B50.9 Materials
B50.10 Preparation of apparatus
B50.11 Procedure
B50.12 Result
B51 M.O.T. 5.10.4/5 and 5.17—EMISSION TESTING AND EMISSION LABELLING
B51.6 Scope
B51.7 Principle
B51.8 Materials
B51.9 Apparatus
B51.10 Preparation of apparatus
B51.11 Procedure
B51.12 Calculations
B51.13 Result
B52 M.O.T. 5.11—WIND TEST—ROOM SEALED APPLIANCES
B52.6 Scope
B52.7 Principle
B52.8 Apparatus
B52.9 Materials
B52.10 Preparation of apparatus
B52.11 Procedure
B52.12 Result
B53 M.O.T. 5.12.1—THERMOSTAT CHARACTERISTICS—SNAP ACTING THERMOSTATS
B53.6 Scope
B53.7 Principle
B53.8 Apparatus
B53.9 Materials
B53.10 Preparation of apparatus
B53.11 Procedure
B53.12 Result
B54 M.O.T. 5.12.2—THERMOSTAT OPERATION
B54.6 Scope
B54.7 Principle
B54.8 Apparatus
B54.9 Materials
B54.10 Preparation of apparatus
B54.11 Procedure
B54.12 Result
B55 M.O.T. 5.13.1/2/3—LINTING TEST
B55.6 Scope
B55.7 Principle
B55.8 Apparatus
B55.9 Materials
B55.10 Preparation of apparatus
B55.11 Procedure
B55.12 Result
B56 M.O.T. 5.14.1—RAIN RESISTANCE OF FLUE TERMINALS OF ROOM SEALED APPLIANCES
B56.6 Scope
B56.7 Principle
B56.8 Apparatus
B56.9 Materials
B56.10 Preparation of apparatus
B56.11 Procedure
B56.12 Result
B57 M.O.T. 5.15.1—PORTABLE APPLIANCES—STABILITY TEST
B57.6 Scope
B57.7 Principle
B57.8 Apparatus
B57.9 Procedure
B57.10 Result
B58 M.O.T. 5.15.2—FLOOR LOADING TEST
B58.6 Scope
B58.7 Principle
B58.8 Apparatus
B58.9 Procedure
B58.10 Result
B59 M.O.T. 5.15.3—STRENGTH—LOADING TEST
B59.6 Scope
B59.7 Principle
B59.8 Apparatus
B59.9 Preparation of apparatus
B59.10 Procedure
B59.11 Result
B60 M.O.T. 5.16.1—ENERGY LABELLING TEST
B60.6 Scope
B60.7 Principle
B60.8 Apparatus
B60.9 Materials
B60.10 Preparation of apparatus
B60.11 Procedure
B60.12 Result
APPENDIX C - METER VOLUME CORRECTION FACTORS
APPENDIX D - GUIDELINES ON PROVIDING WRITTEN APPLIANCE SPECIFICATIONS
APPENDIX E - FLUE GAS SAMPLING AND TEMPERATURE MEASUREMENT
APPENDIX F - FLUE SAMPLING METHOD FOR SMALL FLUES
APPENDIX G - DESIGN OF TESTING DUCT FOR WALL FURNACES FITTED WITH REAR REGISTERS
APPENDIX H - TESTING APPARATUS FOR PRIMARY GUARDS
NZS AS 4553.1&.2(Int):2013
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