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eLibrary > BS EN 419:2019 Gas-fired overhead luminous radiant heaters for non-domestic use. Safety and energy efficiency >

BS EN 419:2019 Gas-fired overhead luminous radiant heaters for non-domestic use. Safety and energy efficiency, 2019

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BS EN 419:2019 Gas-fired overhead luminous radiant heaters for non-domestic use. Safety and energy efficiency, 2019

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1 Scope
2 Normative references
3 Terms and definitions [Go to Page]
3.1 Appliance and its constituent parts
3.2 Adjusting, control and safety devices
3.3 Operation of the appliance
3.4 Gases
3.5 Conditions of operation and measurement
3.6 Energy efficiency
3.7 Country of destination
3.8 Symbols
4 Classification of appliances [Go to Page]
4.1 Classification of gases and categories [Go to Page]
4.1.1 Classification of low pressure gases and categories
4.1.2 Classification of medium pressure gases
4.2 Classification according to the mode of evacuation of the combustion products [Go to Page]
4.2.1 General
4.2.2 Type A
5 Constructional requirements [Go to Page]
5.1 General [Go to Page]
5.1.1 Conversion to different gases
5.1.2 Category I
5.1.3 Category II and III
5.1.4 Materials and method of construction
5.1.5 Accessibility for maintenance and use
5.1.6 Means of sealing the gas circuit
5.1.7 Flexible gas connection
5.1.8 Supply of combustion air and evacuation of combustion products [Go to Page]
5.1.8.1 Air inlets
5.1.8.2 Appliance outlet
5.1.9 Gas inlet connection
5.1.10 State of operation
5.1.11 Electrical safety
5.1.12 Operational safety in the event of fluctuation, interruption and restoration of the auxiliary energy
5.2 Requirements for adjusting, control and safety devices [Go to Page]
5.2.1 General
5.2.2 Gas rate adjusters
5.2.3 Range-rating devices
5.2.4 Primary aeration adjusters
5.2.5 Controls and safety devices [Go to Page]
5.2.5.1 General
5.2.5.2 Manual controls
5.2.5.3 Manual valves
5.2.6 Regulators
5.2.7 Flame supervision devices
5.2.8 Multifunctional controls
5.2.9 Automatic shut-off valves
5.2.10 Gas strainers
5.2.11 Automatic burner control system [Go to Page]
5.2.11.1 General
5.2.11.2 Manually operated devices
5.2.11.3 Flame detector
5.2.11.4 Ignition burner flame establishment
5.2.11.5 Direct main burner flame establishment
5.2.11.6 Safety shut-down
5.2.12 Air / gas ratio controls
5.3 Ignition devices [Go to Page]
5.3.1 General [Go to Page]
5.3.1.1 Appliances with manually ignited ignition burners
5.3.1.2 Appliances with automatic ignition
5.3.2 Ignition device for the main burner
5.3.3 Ignition burners
5.4 Main burner
5.5 Pressure test points
5.6 Injectors
6 Operational requirements [Go to Page]
6.1 Test methods [Go to Page]
6.1.1 Characteristics of test gases: reference and limit gases
6.1.2 Conditions for preparation of the test gases
6.1.3 Practical application of test gases [Go to Page]
6.1.3.1 Choice of test gases
6.1.3.2 Conditions of supply and adjustment of the appliance
6.1.4 Test procedures [Go to Page]
6.1.4.1 Tests requiring the use of reference gas
6.1.4.2 Tests requiring the use of the limit gases
6.1.5 General test conditions [Go to Page]
6.1.5.1 Test room
6.1.5.2 Test installation
6.1.5.3 Influence of thermostats
6.1.5.4 Electrical supply
6.1.5.5 Range-rated appliances
6.1.5.6 Two-stage, multi-stage and modulating appliances
6.1.5.7 Pilot flame operation
6.2 Soundness of the gas circuit [Go to Page]
6.2.1 General
6.2.2 Low pressure appliances
6.2.3 Medium pressure appliances
6.3 Heat inputs [Go to Page]
6.3.1 General
6.3.2 Nominal heat input
6.3.3 Ignition burner heat input
6.3.4 Effectiveness of the range-rating device
6.4 Pressure regulator
6.5 Limiting temperatures [Go to Page]
6.5.1 Wall and ceiling temperatures [Go to Page]
6.5.1.1 General
6.5.1.2 Apparatus
6.5.1.3 Procedure
6.5.2 Component temperatures
6.6 Ignition, cross-lighting and flame stability [Go to Page]
6.6.1 Operation in still air conditions [Go to Page]
6.6.1.1 Ignition and cross-lighting
6.6.2 Flame stability
6.6.3 Effect of room draughts [Go to Page]
General
6.6.3.2 Ignition and cross-lighting
6.6.3.3 Flame stability
6.6.4 Flame supervision devices [Go to Page]
6.6.4.1 General
6.6.4.2 Ignition opening time
6.6.4.3 Safety time
6.6.4.4 Extinction safety time
6.6.4.5 Thermo-electric devices
6.6.4.6 Electronic devices
6.6.4.7 Manually operated devices
6.7 Combustion [Go to Page]
6.7.1 Carbon Monoxide CO [Go to Page]
6.7.1.1 General
6.7.1.2 Operation in still air conditions
6.7.1.3 Auxiliary energy variations
6.7.1.4 Air-gas ratio controls
6.7.2 Oxides of Nitrogen NOx [Go to Page]
6.7.2.1 General
6.7.2.2 Weighting
6.7.2.3 Declaration of values of oxides of Nitrogen, NOx
6.8 Determination of electrical power consumption [Go to Page]
6.8.1 General
6.8.2 Auxiliary energy at nominal load
6.8.3 Auxiliary energy at minimum load
6.8.4 Auxiliary energy at stand-by
7 Radiant Efficiency [Go to Page]
7.1 General
7.2 General principle of the measurement and calculation of radiant factor
7.3 Test room
7.4 Test equipment [Go to Page]
7.4.1 Installation
7.4.2 Mechanical equipment and radiometer positioning / measuring grid
7.4.3 Radiometer equipment and calibration [Go to Page]
7.4.3.1 General
7.4.3.2 Radiometer settings
7.4.3.3 Signal acquisition
7.5 Test procedure [Go to Page]
7.5.1 Adjustments
7.5.2 Measurement procedure
7.6 Calculation of radiant factor [Go to Page]
7.6.1 Calculation of heat input
7.6.2 Calculation of radiant output [Go to Page]
7.6.2.1 General
7.6.2.2 Treatment of negative radiometer readings
7.6.2.3 Correction of measured radiant output for radiant absorption by H2O and CO2
7.6.3 Calculation of radiant factor [Go to Page]
7.6.3.1 General
7.6.3.2 Radiant factor at nominal heat input (RFnom)
7.6.3.3 Radiant factor at minimum heat input (RFmin)
7.7 Test report [Go to Page]
7.7.1 General
7.7.2 Worked example of test report
8 Requirements of energy efficiency (rational use of energy) [Go to Page]
8.1 General
8.2 Seasonal energy efficiency [Go to Page]
8.2.1 General
8.2.2 Seasonal space heating efficiency calculation [Go to Page]
8.2.2.1 Seasonal space heating efficiency
8.2.2.2 Correction factor F(1)
8.2.2.3 Correction factor F(4)
8.2.2.4 Correction factor F(5)
9 Risk assessment
10 Marking and instructions [Go to Page]
10.1 Marking of the appliance and the packaging [Go to Page]
10.1.1 Data plate
10.1.2 Other marking
10.1.3 Marking on the packaging
10.1.4 Utilization of symbols on the appliance and packaging [Go to Page]
10.1.4.1 Electrical supply
10.1.4.2 Type of gas
10.1.4.3 Gas supply pressure
10.1.4.4 Category
10.1.4.5 Other information
10.2 Instructions [Go to Page]
10.2.1 General
10.2.2 Technical instructions [Go to Page]
10.2.2.1 Technical instructions for installation and adjustment
10.2.2.2 Instructions for use and maintenance
10.2.2.3 Conversion instructions
10.2.2.4 Instructions for the installation of fittings
10.3 Presentation
10.4 Information Requirements of Local Space Heaters
Annex A (informative)National situations [Go to Page]
A.1 General
A.2 Gas rate adjusters, aeration adjusters and regulators
A.3 Conversion to different gases
A.4 Gas connections in the various countries
Annex B (informative)Equivalence rules [Go to Page]
B.1 Conversion to categories within a restricted Wobbe index range
B.2 Conversion to categories within an identical Wobbe index range
B.3 Conversion to categories within a wider Wobbe index range
Annex C (informative)Identification of the types of gas in use in the various countries
Annex D (normative)Special national conditions
Annex E (normative)Calculation of conversions of NOx [Go to Page]
E.1 NOx emission conversion factors
E.2 NOx conversion calculation
Annex F (informative)National situations of countries whose national bodies are CEN associate members
Annex G (informative)Radiometer design [Go to Page]
G.1 Principle radiometer design features
G.2 Radiometer technical design
G.3 Pyro-electric detector
G.4 Ulbricht Sphere
Annex H (informative)Radiometer calibration [Go to Page]
H.1 Radiometer calibration procedure
H.2 Black body calibration equipment and procedure [Go to Page]
H.2.1 General
H.2.2 Temperature calibration at reference condition
H.2.3 Temperature calibration at higher temperatures
H.2.4 Calibration calculation
H.3 Calibration procedure in detail, presented as a worked example [Go to Page]
H.3.1 Calibration Measurements
H.3.2 Selecting the average readings
H.3.3 Determination of the 1/S sensitivity per temperature
H.3.4 Determining the 1/S sensitivity of the radiometer
H.3.5 Documentation of calibration results
Annex I (normative)Correction of measured radiant output for absorption by H2O and CO2 [Go to Page]
I.1 General
I.2 Calculation method
Annex J (informative)Radiant heat output data - Recording of results [Go to Page]
J.1 General information to be recorded [Go to Page]
J.1.1 Test and appliance data
J.1.2 Radiometer technical data
J.1.3 Measuring plane technical data
J.1.4 Measurement results
J.1.5 Test information
J.1.6 Test ambient conditions
J.1.7 Gas/heat input data
J.1.8 Flue gas data
J.1.9 Absorption of water vapour and CO2
J.1.10 Irradiation measurement data
Annex K (informative)Worked example [Go to Page]
K.1 General information
K.2 Radiometer technical data
K.3 Measuring plane technical data
K.4 Measurement results [Go to Page]
K.4.1 Test information
K.4.2 Test ambient conditions
K.4.3 Gas/heat input data
K.4.4 Flue gas data
K.4.5 Absorption of water vapour and CO2 data
K.4.6 Irradiation measurement data
Annex L (normative)Product information required
Annex M (normative)Accepted heat input deviation [Go to Page]
M.1 General
Annex N (normative)Uncertainty of measurements
Annex O (informative)Different types of heat input control
Annex ZA (informative)Relationship between this European Standard and the ecodesign requirements of Commission Regulation (EU) No 2015/1188 aimed to be covered [Go to Page]

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