BS EN 613:2021:2022 Edition

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Independent closed-fronted gas-fired type B11, type C11, type C31 and type C91 heaters

Published By	Publication Date	Number of Pages
BSI	2022	86

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Categories: 97.100.20 - Gas heaters, BSI

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Description

This document specifies the requirements and test methods for the construction, safety, marking and rational use of energy. This document is applicable to types B11AS, B11BS, B11CS, C11, C31 and C91 appliances (see 4.2) and those that: — are closed-fronted; — incorporate a natural draught burner; — are connected directly to an open flue or to a device to evacuate the products of combustion (open-flued appliances, balanced-flued appliances); — are wall mounted, free-standing or built-in; — have a nominal heat input not exceeding 20 kW (based on the net calorific value). This document is not applicable to: — open fronted appliances as specified in EN 13278:2013; — decorative fuel effect appliances as specified in EN 509:1999/A1:2003; — catalytic combustion appliances; — appliances in which the supply of combustion air and/or evacuation of products of combustion is achieved by mechanical means as specified in EN 1266:2002; — ducted-air appliances; — appliances installed by means of a closure plate (see 3.3.3.3). Matters related to quality assurance systems, tests during production and to certificates of conformity of auxiliary devices are not dealt with by this standard.

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PDF Pages	PDF Title
2	undefined
8	1 Scope 2 Normative references
10	3 Terms and definitions 3.1 Independent gas-fired heaters 3.2 Appliance construction 3.2.1 The gas circuit
11	3.2.2 Burner
12	3.2.3 Combustion products circuit
13	3.2.4 Auxiliary equipment
14	3.3 Appliance performance 3.3.1 Gas rates 3.3.2 Gas combustion
15	4 Classification of appliances 4.1 Classification according to the nature of the gases used (categories) 4.1.1 Classification of gases 4.1.2 Appliance categories
16	4.2 Classification according to the method of evacuation of the products of combustion
17	5 Constructional requirements 5.1 General 5.1.1 Conversion to different gases 5.1.1.1 General 5.1.1.2 Category I 5.1.1.3 Category II
18	5.1.2 Materials and method of construction
19	5.1.3 Accessibility for use and maintenance 5.1.4 Connections 5.1.4.1 Appliance inlet connection
20	5.1.4.2 Access to the inlet connection 5.1.5 Soundness of the gas circuit 5.1.6 Soundness of the combustion circuit 5.1.6.1 Type B1 appliances 5.1.6.2 Type C11, C31 and C91 appliances
21	5.1.6.3 Built-in appliances 5.1.7 Supply of combustion air and evacuation of combustion products 5.1.7.1 General 5.1.7.2 Type B1 appliances 5.1.7.3 Type C11, C31 and C91 appliances 5.1.8 Electrical equipment
22	5.1.9 Safety in the event of fluctuation, interruption and restoration of the auxiliary energy 5.1.9.1 Interruption and restoration 5.1.9.2 Fluctuation 5.1.10 Confirmation of operation 5.2 Adjusting, control and safety devices 5.2.1 General 5.2.2 Gas rate adjusters
23	5.2.3 Aeration adjuster 5.2.4 Shut-off valves 5.2.4.1 General 5.2.4.2 Manual valve system 5.2.4.3 Automatic valve systems 5.2.4.4 Control knob
24	5.2.5 Flame supervision devices 5.2.6 Pressure regulators 5.2.7 Thermostats and Overheat Limit devices 5.2.8 Spillage monitoring system
25	5.2.9 Manually operated devices 5.3 Ignition devices 5.3.1 Direct ignition of the main burner 5.3.2 Ignition burner 5.4 Flame supervision systems 5.4.1 Appliances with automatic burner systems
26	5.5 Burners 5.6 Gas pressure test points 6 Operational requirements 6.1 Soundness of the gas circuit and combustion products circuit, and evacuation of the combustion products 6.1.1 Soundness of the gas circuit 6.1.2 Soundness of the combustion products circuit and evacuation of the combustion products 6.1.2.1 Type B1 appliances 6.1.2.2 Type C11, C31 and C91 appliances
27	6.1.2.3 Supplementary tests 6.1.3 Escape of unburnt gas (type B1 appliances only) 6.2 Heat inputs 6.2.1 Nominal heat input 6.2.2 Start gas heat input 6.2.3 Reduces rate 6.3 Temperature of various parts of the appliance 6.3.1 Temperature of external parts of the appliance
28	6.3.2 Temperature of components 6.3.3 Temperature of floor, shelf and walls 6.4 Ignition, cross-lighting and flame stability 6.4.1 Ignition and cross-lighting 6.4.1.1 All appliances 6.4.1.2 Supplementary tests
29	6.4.2 Flame stability (all appliances) 6.4.2.1 Effect of room draughts (for type B1 appliances) 6.4.2.2 Effect of down draughts (for type B1 appliances) 6.4.2.3 Wind tests (for type C11, C31 and C91 appliances) 6.4.3 Fluctuation of the auxiliary energy 6.5 Pressure regulators 6.6 Combustion 6.6.1 CO concentration for all appliances 6.6.2 Measurement of oxides of nitrogen, NOx, (all appliances)
30	6.7 Sooting (live fuel effect gas-fired heaters only) 6.7.1 Cold condition 6.7.2 Hot condition 6.7.3 Long cycle condition 6.8 Spillage monitoring system 6.8.1 Atmosphere sensing device (type B11AS appliances only) 6.8.2 Combustion products discharge safety device (type B11BS appliances only) 6.8.2.1 Normal operating conditions 6.8.2.2 Blocked flue conditions
31	6.8.3 Type B11CS appliances 6.9 Flame supervision device 6.9.1 Thermoelectric device 6.9.1.1 Cold condition 6.9.1.2 Hot condition 6.9.2 Automatic burner control system 6.9.2.1 Manually operated devices (e.g. push button) 6.9.2.2 Safety time 6.9.2.3 Extinction delay time
32	6.10 Efficiency 7 Test methods 7.1 General 7.1.1 Characteristics of test gases: reference and limit gases 7.1.2 Conditions for preparation of the test gases 7.1.3 Practical application of test gases 7.1.3.1 Choice of test gases 7.1.3.2 Initial adjustment of appliance 7.1.3.3 Supply pressures
33	7.1.3.4 Corrected pressures 7.1.3.5 Adjustment of heat inputs 7.1.4 Test pressures
34	7.1.5 General test conditions 7.1.5.1 General 7.1.5.2 Test room 7.1.5.3 Test installation 7.1.5.4 Electrical supply (where applicable)
35	7.1.5.5 Convection fan (where applicable) 7.2 Soundness of the gas circuit and combustion products circuit and evacuation of the combustion products 7.2.1 Soundness of the gas circuit 7.2.2 Soundness of the combustion products circuit and evacuation of the combustion products 7.2.2.1 Type B1 appliances 7.2.2.2 Type C11, C31 and C91 appliances
36	7.2.2.3 Supplementary tests 7.2.3 Escape of unburnt gas (type B1 appliances only) 7.3 Heat inputs 7.3.1 Nominal heat input
38	7.3.2 Calibrated injector rate of appliance without gas rate adjusters or where these adjusters are put out of action 7.3.3 Performance of gas rate adjusters for ungoverned appliances 7.3.4 Start gas heat input 7.3.5 Reduced rate 7.4 Temperature of various parts of the appliance 7.4.1 General
39	7.4.2 Temperature of external parts of the appliance 7.4.3 Temperature of components 7.4.4 Temperature of floor, shelf and walls 7.4.4.1 General
40	7.4.4.2 Built-in appliances 7.4.4.3 All other appliances 7.5 Ignition, cross-lighting and flame stability 7.5.1 Ignition and cross-lighting 7.5.1.1 All appliances
41	7.5.1.2 Supplementary tests
42	7.5.2 Flame stability 7.5.3 Effects of room draughts (for type B1 appliances)
43	7.5.4 Wind tests for type C11, C31 and C91 appliances 7.5.4.1 For type C11 appliances
44	7.5.4.2 Type C31 and Type C91 appliances 7.6 Pressure regulators 7.6.1 Operational pressure regulator
45	7.6.2 Pressure regulator out of service 7.7 Combustion 7.7.1 General 7.7.1.1 Introduction
46	7.7.1.2 Type B1 appliances 7.7.1.3 Type C11, C31 and C91 appliances
47	7.7.2 Tests under limit conditions 7.7.2.1 Reference gas 7.7.2.2 Incomplete combustion gas 7.7.3 Supplementary tests under special conditions 7.7.3.1 Safety in the event of fluctuation, interruption and restoration of the auxiliary energy
48	7.7.3.2 Type B1 appliances 7.7.3.3 Type C11, C31 and C91 appliances 7.7.4 Measurement of oxides of nitrogen (all appliances)
49	7.8 Sooting (live fuel effect gas-fired heaters only) 7.8.1 General 7.8.2 Determination of the smoke number
50	7.8.3 Test conditions 7.8.3.1 General 7.8.3.2 Cold condition 7.8.3.3 Hot condition 7.8.3.4 Long cycle condition (only if soot is found on the burner/fuel bed) 7.9 Spillage monitoring system 7.9.1 General 7.9.2 Atmosphere sensing device (type B11AS appliances) 7.9.2.1 Sealed room (see Figure 9)
51	7.9.2.2 Test method 7.9.3 Combustion products discharge safety device (type B11BS appliances) 7.9.3.1 General 7.9.3.2 Nuisance shutdown
52	7.9.3.3 Shutdown times 7.10 Flame supervision device 7.10.1 Thermoelectric device 7.10.1.1 Cold condition 7.10.1.2 Hot condition
53	7.10.2 Automatic burner control systems 7.10.2.1 Manually operated devices (e.g. push button) 7.10.2.2 Safety time 7.10.2.3 Extinction time 7.11 Efficiency 7.11.1 Installation and gas supply 7.11.1.1 General 7.11.1.2 Type B1 appliances 7.11.1.3 Type C11, C31 and C91 appliances
54	7.11.2 Determination of efficiency
55	8 Marking and instructions 8.1 Marking 8.1.1 Marking of the appliance 8.1.2 Other marking
56	8.1.3 Marking of the packaging 8.1.3.1 General 8.1.3.2 Additional 8.1.4 Utilization of symbols on the appliance and packaging 8.1.4.1 Electrical supply 8.1.4.2 Type of gas
57	8.1.4.3 Gas supply pressure 8.1.4.4 Country of destination 8.1.4.5 Category 8.1.4.6 Other information
58	8.2 Instructions 8.2.1 Instructions for installation and adjustment 8.2.1.1 All appliances
59	8.2.1.2 For type B1 appliances 8.2.1.3 Built-in appliances 8.2.2 Instructions for use and servicing
73	Annex A (normative)Hood test method (type B appliances) A.1 Installation A.2 Hood adjustment
77	Annex B (informative)Gas designations in force in the various EU countries
79	Annex C (normative)Apparatus for the determination of the smoke number C.1 Pump C.2 Sampling tube C.3 Filter paper C.4 Grey scale
80	Annex D (informative)Symbols and abbreviations
81	Annex E (normative)Calculation of conversions of NOx
82	Annex F (normative)Arrangement for measuring the leakage rate
83	Annex G (normative)Special national conditions G.1 General G.2 Belgium

Additional information

Status	Definitive
Pages	86
Publication Date	2022-01-31
ISBN	978 0 580 52466 0
Standard Number	BS EN 613:2021
Title	Independent closed-fronted gas-fired type B11, type C11, type C31 and type C91 heaters
Identical National Standard Of	EN 613
Replaces	BS EN 613:2001
Descriptors	Thermal testing, Marking, Fire tests, Classification systems, Heaters, Gas space heating, Design, Fuel-effect appliances, Flued heaters, Air heaters, Gas-powered devices, Gas-fired heaters, Fire safety, Performance testing, Convection heaters, Ignition systems (heat engineering), Type testing, Heating equipment, Combustion products
Publisher	BSI
Committee	GSE/36
ICS Codes	97.100.20 - Gas heaters

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