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ISO 22967:2010 Forced draught gas burners, 2010
- 1 Scope
- 2 Normative references
- 3 Terms and definitions [Go to Page]
- 3.1 General
- 3.2 Combustible gases
- 3.3 Test rig and combustion chamber
- 3.4 Composition of the gaseous combustion products
- 3.5 Burner operation [Go to Page]
- 3.5.1 Gas rate
- 3.5.2 Running conditions
- 3.6 Gas line components
- 3.7 Adjustment, control and safety devices
- 3.8 Sequencing times
- 3.9 Combustion
- 3.10 Diagrams
- 4 Constructional and operational requirement [Go to Page]
- 4.1 Operation with different fuels [Go to Page]
- 4.1.1 Conversion to different gases
- 4.1.2 Operation with dual fuel supply or simultaneous supply
- 4.2 Construction [Go to Page]
- 4.2.1 Design
- 4.2.2 Accessibility for maintenance and use
- 4.2.3 Soundness
- 4.2.4 Materials
- 4.2.5 Mounting
- 4.2.6 Connections
- 4.3 Equipment [Go to Page]
- 4.3.1 Motors and fans
- 4.3.2 Electrical safety [Go to Page]
- 4.3.2.1 Controls conformant with IEC 60730 and ISO 23550
- 4.3.2.2 Electrical safety of the burner [Go to Page]
- 4.3.2.2.1 General
- 4.3.2.2.2 Modifications, additions and replacements
- 4.3.3 Adjustable air damper
- 4.3.4 Installation of the automatic burner control unit
- 4.3.5 Gas line components [Go to Page]
- 4.3.5.1 General
- 4.3.5.2 Manually operated shut-off valve
- 4.3.5.3 Filter/strainer
- 4.3.5.4 Gas pressure regulator
- 4.3.5.5 High gas pressure overload protection device
- 4.3.5.6 Low gas pressure protection device
- 4.3.5.7 Adjustment devices
- 4.3.5.8 Automatic safety shut-off valves
- 4.3.5.9 Pressure test points
- 4.3.5.10 Valve tightness check (VTC) [Go to Page]
- 4.3.5.10.1 Closed position indicator (CPI)
- 4.3.5.10.2 Proof of closure indicator (POC)
- 4.3.5.10.3 Valveproving system (VPS)
- 4.3.6 Ignition device
- 4.3.7 Flame detector device
- 4.3.8 Air-proving device
- 4.3.9 Gas/air ratio control device
- 4.3.10 Automatic burner control unit
- 4.3.11 Interfacing with appliances
- 4.4 Functional and operational requirements [Go to Page]
- 4.4.1 General [Go to Page]
- 4.4.1.1 Burner start-up
- 4.4.1.2 Pre-purge
- 4.4.1.3 Start heat input
- 4.4.1.4 Start gas ignition
- 4.4.1.5 Main burner ignition [Go to Page]
- 4.4.1.5.1 Establishment by means of a start gas flame
- 4.4.1.5.2 Direct establishment of the main gas flame
- 4.4.1.5.3 Energizing the main gas safety shut-off valves
- 4.4.1.6 Safety times [Go to Page]
- 4.4.1.6.1 First safety time
- 4.4.1.6.2 Flame extinction safety time
- 4.4.1.6.3 Total closing time
- 4.4.1.7 Failure to ignite
- 4.4.1.8 Flame failure during the running condition
- 4.4.1.9 Burner shut-down
- 4.4.2 Operational requirements [Go to Page]
- 4.4.2.1 External soundness
- 4.4.2.2 Resistance of the burner to overheating
- 4.4.2.3 Temperatures of the control and safety devices
- 4.4.2.4 Ignition, operation and flame stability
- 4.4.3 Heat input range of the burner
- 4.4.4 Dual-fuel burner
- 4.4.5 Working and test diagrams [Go to Page]
- 4.4.5.1 Working diagram
- 4.4.5.2 Test diagram
- 4.4.6 Determination of flame stability and the safe range of operation
- 4.4.7 Limiting values for combustion emissions [Go to Page]
- 4.4.7.1 General
- 4.4.7.2 Carbon monoxide (CO)
- 4.4.7.3 Nitrogen oxide (NOx)
- 4.4.7.4 Emission classes for burners
- 4.4.8 Starting characteristics
- 4.4.9 Burner gas supplies
- 5 Test methods [Go to Page]
- 5.1 General [Go to Page]
- 5.1.1 Test gases for forced draught burners
- 5.1.2 Test pressures
- 5.1.3 Combustion test chamber [Go to Page]
- 5.1.3.1 General
- 5.1.3.2 Test rig for a heat input of less than or equal to 2,4 MW
- 5.1.3.3 Test rig for a heat input greater than 2,4 MW
- 5.1.3.4 Heat-transfer medium
- 5.1.3.5 Ambient test conditions
- 5.1.3.6 Evacuation of the combustion products
- 5.1.3.7 Electrical supply
- 5.1.3.8 Installation
- 5.1.3.9 Measurement accuracies [Go to Page]
- 5.1.3.9.1 Measuring instrument accuracies
- 5.1.3.9.2 Measurement uncertainties
- 5.1.4 Test types [Go to Page]
- 5.1.4.1 General
- 5.1.4.2 Structural testing
- 5.2 Functional tests [Go to Page]
- 5.2.1 General
- 5.2.2 Startup
- 5.2.3 Pre-purge
- 5.2.4 Start-up heat input
- 5.2.5 Ignition
- 5.2.6 Safety times [Go to Page]
- 5.2.6.1 General
- 5.2.6.2 Flame extinction safety time
- 5.2.6.3 Failure to ignite
- 5.2.6.4 Flame failure during the running condition
- 5.3 Operation [Go to Page]
- 5.3.1 External soundness
- 5.3.2 Resistance of the burner to overheating [Go to Page]
- 5.3.2.1 General
- 5.3.2.2 Nozzle-mixed burners
- 5.3.2.3 Total pre-mixed burners
- 5.3.3 Temperature of the control and safety devices
- 5.3.4 Ignition — Flame stability
- 5.3.5 Operation — Flame stability
- 5.4 Tests to be carried out at points identified on working and test diagrams [Go to Page]
- 5.4.1 Test point 1
- 5.4.2 Test point Hp1
- 5.4.3 Test points 2, 5 (single-, multi-stage and modulating burners) and 6 (multi-stage and modulating burners)
- 5.4.4 Test points Hp2 (single-, multi-stage and modulating burners) and Hp6 (multi-stage and modulating burners)
- 5.4.5 Test point 3
- 5.4.6 Test point 4
- 5.4.7 Tests at first stage points or minimum heat input
- 5.4.8 Summary
- 5.4.9 Functional test
- 5.5 Combustion
- 5.6 Start-up
- 5.7 Obtaining the nominal heat input
- 5.8 Electrical safety
- 6 Marking, labelling and packaging [Go to Page]
- 6.1 General
- 6.2 Data plate
- 6.3 Other markings
- 6.4 Instructions for application, installation, adjustment, commissioning, maintenance and operation
- 6.5 Marking on the packaging [Go to Page]
