EN 416-1:2009

SLOVENSKI STANDARD
01-julij-2009
1DGRPHãþD
SIST EN 416-1:1999
SIST EN 416-1:1999/A1:2002
SIST EN 416-1:1999/A2:2002
SIST EN 416-1:1999/A3:2003
Stropna cevna sevala s plinskim gorilnikom za nestanovanjske prostore - 1. del:
Varnost
Single burner gas-fired overhead radiant tube heaters for non-domestic use - Part 1:
Safety
Gasgeräte-Heizstrahler - Dunkelstrahler mit einem Brenner mit Gebläse für gewerbliche
und industrielle Anwendung - Teil 1: Sicherheit
Tubes radiants suspendus à monobrûleur à usage non-domestique utilisant les
combustibles gazeux - Partie 1: Sécurité
Ta slovenski standard je istoveten z: EN 416-1:2009
ICS:
97.100.20 Plinski grelniki Gas heaters
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 416-1
NORME EUROPÉENNE
EUROPÄISCHE NORM
March 2009
ICS 91.140.40 Supersedes EN 416-1:1999
English Version
Single burner gas-fired overhead radiant tube heaters for non-
domestic use - Part 1: Safety
Tubes radiants suspendus à monobrûleur à usage non- Gasgeräte-Heizstrahler - Dunkelstrahler mit einem Brenner
domestique utilisant les combustibles gazeux - Partie 1: mit Gebläse für gewerbliche und industrielle Anwendung -
Sécurité Teil 1: Sicherheit
This European Standard was approved by CEN on 10 January 2009.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European
Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national
standards may be obtained on application to the CEN Management Centre or to any CEN member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as the
official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,
Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2009 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 416-1:2009: E
worldwide for CEN national Members.

Contents Page
Foreword . 6
1 Scope. 7
2 Normative references . 8
3 Definitions . 9
3.1 Appliance and its constituent parts . 9
3.2 Combustion circuit . 10
3.3 Adjusting, control and safety devices . 11
3.4 Operation of the appliance . 12
3.5 Gases. 15
3.6 Conditions of operation and measurement. 16
3.7 Country of destination . 17
4 Appliance classification . 17
4.1 Classification according to the nature of the gases used (categories) . 17
4.2 Classification according to the gases capable of being used . 18
4.2.1 Category I . 18
4.2.2 Category II . 19
4.2.3 Category III . 19
4.3 Classification according to the mode of evacuation of the combustion products . 20
4.3.1 General . 20
4.3.2 Type A . 20
4.3.3 Type B . 20
4.3.4 Type C . 21
5 Constructional requirements . 21
5.1 General . 21
5.1.1 Conversion to different gases . 21
5.1.2 Materials and method of construction . 22
5.1.3 Accessibility for maintenance and use . 23
5.1.4 Means of sealing . 23
5.1.5 Supply of combustion air and evacuation of combustion products . 24
5.1.6 Inlet connections . 26
5.1.7 Confirmation of operation . 26
5.1.8 Electrical equipment . 27
5.1.9 Operational safety in the event of fluctuation, interruption and restoration of the
auxiliary energy . 27
5.1.10 Motors and fans . 27
5.2 Requirements for adjusting, control and safety devices . 27
5.2.1 General . 27
5.2.2 Gas rate adjusters . 28
5.2.3 Range-rating devices . 28
5.2.4 Aeration adjusters . 28
5.2.5 Controls and safety devices . 28
5.2.6 Regulators . 29
5.2.7 Multifunctional controls . 29
5.2.8 Automatic shut-off valves . 29
5.2.9 Gas strainers . 30
5.2.10 Thermostats . 30
5.2.11 Air proving device . 30
5.2.12 Automatic burner control system . 31
5.3 Ignition devices . 32
5.3.1 General . 32
5.3.2 Ignition device for the main burner . 32
5.3.3 Ignition burners . 33
5.4 Main burner . 33
5.5 Pressure test points . 33
5.6 Injectors . 33
6 Operational requirements . 33
6.1 Soundness . 33
6.1.1 Soundness of the gas circuit . 33
6.1.2 Soundness of the combustion circuit and correct evacuation of the combustion
products . 33
6.2 Heat inputs . 34
6.2.1 Nominal heat input . 34
6.2.2 Start gas heat input . 34
6.2.3 Effectiveness of the range-rating device . 34
6.3 Limiting temperatures . 34
6.3.1 Wall and ceiling temperatures . 34
6.3.2 Component temperatures . 35
6.3.3 Fan motor temperatures . 35
6.3.4 POCED (Type B , B , C and C appliances) . 35
4 5 1 3
6.4 Ignition, cross-lighting and flame stability . 35
6.4.1 All appliances (still air conditions) . 35
6.4.2 Supplementary tests for Type B , B , B and B appliances . 35
12 13 42 43
6.4.3 Supplementary tests for Type C and C appliances . 36
1 3
6.5 Pressure regulator . 36
6.6 Combustion . 36
6.6.1 All appliances (still air conditions) . 36
6.6.2 Supplementary tests under special conditions . 36
6.7 Prolonged performance. 37
6.8 Measurement of oxides of Nitrogen (NO ) . 37
x
7 Test methods . 38
7.1 General . 38
7.1.1 Characteristics of test gases (Reference and limit gases) . 38
7.1.2 Conditions for preparation of the test gases . 38
7.1.3 Practical application of test gases . 41
7.1.4 Test pressures . 42
7.1.5 Test procedures . 43
7.1.6 General test conditions . 44
7.2 Construction and design . 45
7.2.1 Manually operated devices (automatic burner control systems) . 45
7.2.2 Pre-purging . 45
7.2.3 Safety time . 45
7.2.4 Extinction time . 45
7.3 Safety of operation . 46
7.3.1 Soundness . 46
7.3.2 Heat inputs . 47
7.3.3 Limiting temperatures . 50
7.3.4 Ignition, cross-lighting and flame stability . 54
7.3.5 Pressure regulator . 60
7.3.6 Combustion . 60
7.3.7 Prolonged performance. 64
7.4 Other pollutants . 64
7.4.1 General . 64
7.4.2 Weighting . 65
8 Marking and instructions . 68
8.1 Marking of the appliance and the packaging . 68
8.1.1 Data plate . 68
8.1.2 Other marking . 69
8.1.3 Marking of the packaging containing the burner . 69
8.1.4 Utilization of symbols on the appliance and packaging . 69
8.2 Instructions . 71
8.2.1 General . 71
8.2.2 Technical instructions . 72
8.2.3 Instructions for use and maintenance . 74
8.3 Presentation . 74
9 Evaluation of conformity of POCEDs and their associated terminals . 75
9.1 General . 75
9.2 Type testing . 75
9.2.1 Initial type testing . 75
9.2.2 Further type testing . 75
9.2.3 Sampling for type testing . 75
9.3 Factory Production Control (FPC) . 75
9.3.1 General . 75
9.3.2 Equipment . 77
9.3.3 Raw materials and components . 77
9.3.4 Product testing and evaluation . 77
9.3.5 Non-conforming products . 77
Annex A (informative) National situations . 78
A.1 General . 78
A.2 Categories listed in the body of the standard and marketed in different countries . 78
A.3 Appliance supply pressures corresponding to the categories given in A.2 . 80
A.4 Special categories marketed nationally or locally . 82
A.4.1 General . 82
A.4.2 Definition of special categories . 83
A.4.3 Gas rate adjusters, aeration adjusters and regulators . 86
A.4.4 Conversion to different gases . 86
A.5 Test gases corresponding to the special categories given in A.4 . 86
A.6 Gas connections in the various countries . 87
A.7 Flue connections in the various countries . 89
Annex B (normative) Appliance (flue) types . 90
B.1 Type B appliances with a fan in the combustion circuit . 90
B.2 Type C appliances with a fan in the combustion circuit . 94
Annex C (informative) Equivalence rules . 96
C.1 Conversion to categories within a restricted Wobbe Index range . 96
C.2 Conversion to categories within an identical Wobbe Index range . 96
C.3 Conversion to categories within a wider Wobbe Index range. 97
Annex D (informative) Calculation of flue gas mass flow rate . 98
D.1 Flue gas mass flow rate. 98
D.2 Quantity of air in the flue gas . 98
D.3 Flue gas excess air ratio (λ) . 99
D.4 Quantity of water vapour in the flue gas . 99
D.5 Quantity of Nitrogen in the flue gas . 99
D.6 Quantity of Oxygen in the flue gas . 100
D.7 Dry quantity of flue gas . 100
D.8 Quantity of carbon dioxide in the flue gas . 100
Annex E (informative) Identification of gas types in use in various countries . 102
Annex F (normative) Special national conditions . 103
F.1 General . 103
F.1.1 Belgium . 103
F.1.2 Italy . 103
Annex G (informative) Calculation example of the weighting factors for an appliance with
several rates . 104
G.1 Appliance rates . 104
G.2 Weighting of Qpi,% = 20 . 104
G.3 Weighting of Q = 40 . 104
pi,%
G.4 Weighting of Q = 60 . 104
pi,%
G.5 Weighting of Q = 70 . 105
pi,%
G.6 Total weighting . 105
Annex H (informative) NO conversion calculation . 106
x
H.1 NO emission conversion factors. 106
x
H.2 NO conversion calculation . 107
X
Annex I (informative) National situations for countries whose national bodies are CEN
Associate Members . 109
Annex J (informative) An example of sampling plans . 110
J.1 Sampling plans . 110
J.1.1 Acceptable Quality Level (AQL) . 110
J.1.2 The inspection level . 110
J.1.3 Normal, tightened or reduced inspection . 110
J.1.4 Single, double, multiple or sequential sampling . 110
J.1.5 Batch quality . 110
J.2 Inspection levels and procedures . 111
J.2.1 Incoming material . 111
J.2.2 In-process aspects . 111
J.2.3 Finished goods checks . 111
Annex K (informative) . 112
K.1 General conditions of test . 112
K.1.1 Principle of method . 112
K.1.2 Test room . 112
K.1.3 Preparation of appliance . 112
K.2 Test conditions . 112
K.3 Test procedure . 113
K.4 Accuracy of measurement . 117
K.5 Calculation of Flue Loss. 117
Annex ZA (informative) Relationship between this European Standard and the Essential
Requirements of EU Directive 90/396/EEC – The approximation of the laws of
Member States concerning gas appliances . 120
Annex ZB (informative) Clauses of this European Standard addressing the provisions of
the EU Construction Products Directive . 122
ZB.1 Scope and relevant characteristics . 122
ZB.2 Procedure(s) for attestation of conformity of [construction products] . 124
ZB.2.1 System(s) of attestation of conformity . 124
ZB.2.2 EC Certificate and Declaration of conformity . 125
ZB.3  CE marking and labelling . 126
Bibliography . 128

Foreword
This document (EN 416-1:2009) has been prepared by Technical Committee CEN/TC 180 “Domestic
and non-domestic gas fired air heaters and non-domestic gas fired overhead radiant heaters”, the
secretariat of which is held by AFNOR.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by September 2009, and conflicting national standards
shall be withdrawn at the latest by September 2009.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such
patent rights.
This document supersedes EN 416-1:1999.
This revision modifies EN 416-1:1999. It has been prepared to incorporate requirements for
combustion products evacuation ducts, POCEDs, supplied as an integral part of the appliance to
support EU Directive 89/106/EEC on construction products under Mandate M/105. To this end, it
extends the scope of the standard to cover Type B and B appliances.
4 5
Furthermore, the opportunity presented by this amendment has been taken to update the standard in
respect to EN 437:2003.
This document has been prepared under a mandate given to CEN by the European Commission and
the European Free Trade Association, and supports essential requirements of EC Directive(s).
For relationship with EC Directive(s), see informative Annexes ZA and ZB, which are integral parts of
this document.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland,
Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania,
Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom.
1 Scope
This European Standard specifies the requirements and test methods for the construction, safety,
classification and marking of non-domestic gas fired overhead radiant tube heaters incorporating a
single burner system under the control of an automatic burner control system, referred to in the body
of the text as 'appliances'.
This standard is applicable to Type A , A , B , B , B , B , B , B , B , B , C , C , C and C
2 3 12 13 22 23 42 43 52 53 12 13 32 33
appliances intended for use in other than domestic dwellings, in which the supply of combustion air
and/or the evacuation of the products of combustion is achieved by mechanical means located
upstream of the draught diverter, if provided.
This standard is not applicable to:
a) appliances designed for use in domestic dwelling;
b) outdoor appliances;
c) appliances of heat input in excess of 120 kW (based on the net calorific value of the
appropriate reference test gas);
d) appliances having fully pre-mixed gas and air burners in which:
1) either the gas and all the combustion air are brought together just before the level of the
combustion zone; or
2) the pre-mixing of the gas and all combustion air is carried out in a part of the burner
upstream of the combustion zone;
e) appliances that are designed for continuous condensation within the flue system under
normal operating conditions;
f) appliances having combustion products evacuation ducts that are non-metallic.
This standard is applicable to appliances which are intended to be type tested. It also includes
requirements concerning the evaluation of conformity, including factory production control, but these
requirements only apply to POCEDs and their associated terminals.
NOTE Requirements for appliances which are not intended to be type tested would need to be subject to
further consideration.
Requirements concerning the rational use of energy have not been included in this European
Standard.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.
EN 88-1:2007, Pressure regulators and associated safety devices for gas appliances - Part 1:
Pressure regulators for inlet pressures up to and including 500 mbar
EN 126:2004, Multifunctional controls for gas burning appliances
EN 161:2007, Automatic shut-off valves for gas burners and gas appliances
EN 257:1992, Mechanical thermostats for gas-burning appliances
EN 298:2003, Automatic gas burner control systems gas burners and gas burning appliances with or
without fans
EN 437:2003, Test gases - Test pressures - Appliance categories
EN 10226-1:2004, Pipe threads where pressure-tight joints are made on the threads – Part 1: Taper
external threads and parallel internal threads - Dimensions, tolerances and designation
EN 10226-2:2005, Pipe threads where pressure tight joints are made on the threads – Part 2: Taper
external threads and taper internal threads - Dimensions, tolerances and designation
EN 13410, Gas-fired overhead radiant heaters - Ventilation requirements for non-domestic premises
EN 60335-1:2002, Household and similar electrical appliances - Safety - Part 1: General requirements
EN 60335-2-102:2006, Household and similar electrical appliances - Safety - Part 2-102: Particular
requirements for gas, oil and solid-fuel burning appliances having electrical connections
EN 60529:1992, Degrees of protection provided by enclosures (IP Code)
EN 60584-1:1995, Thermocouples — Part 1: Reference tables
EN 60584-2:1993, Thermocouples — Part 2: Tolerances
EN ISO 228-1:2003, Pipe threads where pressure-tight joints are not made on the threads - Part 1:
Dimensions, tolerances and designation (ISO 228-1:2000)
EN ISO 3166-1:2006, Codes for the representation of names of countries and their subdivisions –
Part 1: Country codes (ISO 3166-1:2006)
EN ISO 6976:2005, Natural gas - Calculation of calorific values, density, relative density and Wobbe
index from composition (ISO 6976:1995 including Corrigendum 1:1997, Corrigendum 2:1997 and
Corrigendum 3:1999)
ISO 274:1975, Copper tubes of circular section — Dimensions
ISO 7005-1:1992, Metallic flanges - Part 1: Steel flanges
ISO 7005-2:1988, Metallic flanges - Part 2: Cast iron flanges
ISO 7005-3:1988, Metallic flanges - Part 3: Copper alloy and composite flanges
CR 1404:1994, Determination of emissions from appliances burning gaseous fuels during type-testing
3 Definitions
For the purposes of this standard the following definitions apply:
3.1 Appliance and its constituent parts
3.1.1
overhead radiant tube heater
gas fired appliance intended for installation above head level which is designed to heat the space
beneath by radiation by means of a tube or tubes, heated by the internal passage of combustion
products
3.1.2
single burner systems
those radiant tube heaters which employ a single combustion system incorporating independent flame
monitoring and combustion air fan
3.1.3
inlet connection
the part of the appliance intended to be connected to the gas supply
3.1.4
mechanical joint
means of ensuring the soundness of an assembly of several parts (e.g. metal to metal joints, conical
joints, toroidal sealing rings ('O' rings), flat joints without the use of liquids (e.g. pastes and tapes)
3.1.5
gas circuit
part of the appliance that conveys or contains the gas between the appliance gas inlet connection and
the burner(s)
3.1.6
restrictor
device with an orifice, which is placed in the gas circuit so as to create a pressure drop and thus
reduce the gas pressure at the burner to a predetermined value for a given supply pressure and rate
3.1.7
gas rate adjuster
component allowing an authorised person to set the gas rate of the burner to a predetermined value
according to the supply conditions
NOTE 1 Adjustment can be progressive (screw adjuster) or in discrete steps (by changing restrictors).
NOTE 2 The adjusting screw of an adjustable regulator is regarded as a gas rate adjuster.
NOTE 3 The action of adjusting this device is called 'adjusting the gas rate'.
NOTE 4 A factory sealed gas rate adjuster is considered to be non-existent.
3.1.8
setting an adjuster
immobilizing a gas rate adjuster by such means as e.g. a screw, after the gas rate has been adjusted
by the manufacturer or installer
3.1.9
sealing an adjuster
term applied to any arrangement in respect of the adjuster such that any attempt to change the
adjustment breaks the sealing device or sealing material and makes this interference apparent
NOTE 1 A factory sealed adjuster is considered to be non-existent.
NOTE 2 A regulator is considered to be non-existent if it has been factory sealed in a position such that it is
not operational in the range of supply pressure corresponding to the appliance category.
3.1.10
putting an adjuster or a control out of service
putting an adjuster or a control (of temperature, pressure, etc.) out of action and sealing it in this
position. The appliance then functions as if the adjuster or control had been removed.
3.1.11
injector
component that admits the gas into a burner
3.1.12
main burner
burner that is intended to ensure the thermal function of the appliance and is generally called the
burner
3.1.13
premixed burner
burner in which the gas and a quantity of air, at least equal to that theoretically necessary for
complete combustion, are mixed before the flame port(s)
3.1.14
ignition burner
burner whose flame is intended to ignite another burner
3.1.15
ignition device
means (e.g. flame, electrical ignition device or other device) used to ignite the gas at the ignition
burner or at the main burner
3.1.16
primary aeration adjuster
device enabling the primary air to be set at the necessary value according to the supply conditions
3.2 Combustion circuit
3.2.1
combustion products circuit
circuit including the combustion chamber, the radiant tube, the combustion products evacuation duct
and either the fitting piece or the connection to the terminal, if any
3.2.2
air supply and combustion products evacuation ducts
means for transporting combustion air to the burner and combustion products to the terminal or fitting
piece
NOTE A fitting piece is not utilised by appliances of Type C or of Type C . It is necessary to distinguish
1 3
between:
a) completely surrounded ducts where the combustion products evacuation duct is surrounded by
combustion air throughout its length; and
b) separate ducts where the combustion products evacuation duct and the combustion air supply duct are
neither concentric nor completely surrounded ducts
3.2.3
combustion chamber
enclosure inside which combustion of the air-gas mixture takes place
3.2.4
flue outlet
part of a Type B appliance that connects with a flue to evacuate the products of combustion
3.2.5
draught diverter
device placed in the combustion products circuit to reduce the influence of flue-pull and that of down-
draught on the burner performance and combustion
3.2.6
terminal
...