SIST EN 17175:2020
(Main)Gas-fired overhead radiant strip heaters and multi-burner continuous radiant tube heater systems for non-domestic use - Safety and energy efficiency
Gas-fired overhead radiant strip heaters and multi-burner continuous radiant tube heater systems for non-domestic use - Safety and energy efficiency
This document specifies the requirements and test methods for the construction, safety, classification, marking and efficiency of non-domestic gas-fired overhead radiant strips heaters and multi-burner continuous radiant tube heater systems (referred to in the body of the text as the “system”) with each burner unit under the control of an automatic burner control system.
For radiant strip heaters incorporating a single burner, this standard is applicable to Type B22, B23, B52, B53, C12, C13, C32, C33 C52 and C53 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.
For multi-burner continuous radiant tube heater systems this standard is applicable to type B22, B52, and C52 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.
This standard also includes appliances incorporating a secondary heat exchanger in the flue system.
This standard is not applicable to:
a) appliances designed for use in domestic dwelling;
b) outdoor appliances;
c) radiant strip heaters where the heat input is in excess of 300 KW (based on the net calorific value of the appropriate reference test gas);
d) continuous radiant tube heater systems where the heat input of any individual burner unit is in excess of 70 kW (based on the net calorific value of the appropriate reference test gas);
e) appliances having combustion products evacuation ducts that are non-metallic in the flue system – except ducts downstream of a possible additional condensing exhaust gas heat exchanger.
In addition, for heater systems incorporating multiple tube heaters this standard is not applicable to:
f) appliances that are designed for continuous condensation within the flue system under normal operating conditions – except downstream a possible additional exhaust gas heat exchanger.
This standard is applicable to appliances which are intended to be type tested.
Gasbefeuerte Strahlungsheizstreifen und Dunkelstrahlersysteme mit mehreren Brennern für gewerbliche und industrielle Anwendungen - Sicherheit und Energieeffizienz
Dieses Dokument legt die Anforderungen und Prüfverfahren für den Bau, die Sicherheit, die Klassifizierung, die Kennzeichnung und die Effizienz von gasbefeuerten Bandheizstrahlern und Mehr-Brenner-Dunkelstrahlersystemen für gewerbliche und industrielle Anwendungen fest (im Haupttext als „Geräte“ bezeichnet), bei denen jede Brennereinheit durch einen Gasfeuerungsautomaten gesteuert wird.
Für Bandheizstrahler mit einem einzelnen Brenner gilt diese Norm für Geräte des Typs B22, B23, B52, B53, C12, C13, C32, C33 C52 und C53 für gewerbliche und industrielle Anwendungen, bei denen die Zufuhr der Verbrennungsluft und/oder die Abfuhr von Verbrennungsprodukten auf mechanische Weise erfolgt.
Für durchgehende Mehr-Brenner-Dunkelstrahlersysteme gilt diese Norm für Geräte des Typs B22, B52 und C52 für gewerbliche und industrielle Anwendungen, bei denen die Zufuhr der Verbrennungsluft und/oder die Abfuhr von Verbrennungsprodukten auf mechanische Weise erfolgt.
Diese Norm gilt außerdem für Geräte, die mit einer sekundären Abgasabführung im Abgassystem ausgestattet sind.
Diese Europäische Norm gilt nicht für:
a) Geräte, die für eine Verwendung in Wohnungen gedacht sind;
b) Geräte, die für eine Verwendung im Freien gedacht sind;
c) Bandheizstrahler mit einer Wärmebelastung über 300 kW (bezogen auf den Heizwert des jeweiligen Normprüfgases);
d) Durchgehende Dunkelstrahlersysteme mit einer Wärmebelastung der einzelnen Brennereinheit von mehr als 70 kW (bezogen auf den Brennwert des jeweiligen Normprüfgases);
e) Geräte mit nichtmetallischen Abgasabführungsleitungen im Abgasabführungssystem – außer Leitungen hinter einem möglichen zusätzlichen kondensierenden Abgaswärmetauscher.
Darüber hinaus gilt diese Norm im Fall von Wärmeerzeugersystemen mit mehreren Rohrwärmeerzeugern nicht für:
f) Geräte, die für eine dauerhafte Kondensation im Abgassystem unter Normalbetriebsbedingungen ausgelegt sind – außer hinter einem möglichen zusätzlichen Abgaswärmetauscher.
Diese Norm ist anwendbar für Geräte, die für eine Typprüfung vorgesehen sind.
Bandes radiantes et systèmes à tubes radiants continus à brûleurs multiples suspendus à usage non domestique utilisant les combustibles gazeux - Sécurité et efficacité énergétique
Le présent document définit les exigences et les méthodes d’essai relatives à la construction, la sécurité, la classification, le marquage et l’utilisation rationnelle de l’énergie des bandes radiantes et systèmes à tubes radiants continus à brûleurs multiples suspendus à usage non domestique utilisant les combustibles gazeux (appelés dans le corps du texte le « système »), chaque unité de combustion étant équipé d’un système automatique de commande et de sécurité.
Pour les bandes radiantes comprenant un brûleur unique, la présente norme s’applique aux appareils de type B22, B23, B52, B53, C12, C13, C32, C33 C52 et C53 destinés à être utilisés ailleurs que dans des locaux domestiques où l’arrivée en air comburant et/ou l’évacuation des produits de combustion est/sont assurée(s) par des moyens mécaniques.
Pour les systèmes à tubes radiants continus à brûleurs multiples, la présente norme s’applique aux tubes de types B22, B52, et C52 destinés à être utilisés ailleurs que dans des locaux domestiques où l’arrivée en air comburant et/ou l’évacuation des produits de combustion est/sont assurée(s) par des moyens mécaniques.
Le présent document couvre également des appareils comprenant un échangeur de chaleur secondaire dans le système d’évacuation des produits de combustion.
Le présent document ne s’applique pas :
a) aux appareils conçus pour des locaux domestiques ;
b) aux appareils utilisés en plein air ;
c) aux bandes radiantes dont la puissance calorifique nominale dépasse 300 kW (sur le pouvoir calorifique inférieur du gaz de référence approprié) ;
d) aux systèmes à tubes radiants continus dont le débit calorifique de chaque unité de combustion dépasse 70 kW (sur le pouvoir calorifique inférieur du gaz de référence approprié) ;
e) aux appareils équipés de conduits d’évacuation des produits de combustion non métalliques, à l’exception des conduits en aval d’un éventuel échangeur de chaleur des produits de combustion à condensation.
De plus, pour les systèmes de chauffage comprenant plusieurs tubes, la présente norme ne s’applique pas :
f) aux appareils conçus pour une condensation continue dans le système d’évacuation des produits de combustion dans des conditions de fonctionnement normales, sauf en aval d’un éventuel échangeur de chaleur des produits de combustion.
Le présent document s’applique aux appareils qui sont destinés à subir des essais de type.
Stropna plinska linijska sevala in cevna sevala z več plinskimi gorilniki za gretje nestanovanjskih prostorov - Varnost in energijska učinkovitost
Ta dokument določa zahteve in preskusne metode za izdelavo, varnost, razvrščanje, označevanje in učinkovitost stropnih plinskih linijskih seval in cevnih seval z več plinskimi gorilniki za gretje nestanovanjskih prostorov (v jedru besedila imenovanih »sistem«), pri čemer je vsaka enota gorilnika pod nadzorom avtomatskega sistema za upravljanje gorilnikov.
Za sevalne grelne linije, ki vsebujejo en gorilnik, se ta standard uporablja za aparate tipa B22, B23, B52, B53, C12, C13, C32, C33, C52 in C53, namenjene za uporabo v nestanovanjskih prostorih, v katerih se dovajanje zgorevalnega zraka in/ali odvajanje produktov zgorevanja doseže z mehanskimi sredstvi.
Za cevna sevala z več plinskimi gorilniki za gretje se ta standard uporablja za aparate tipa B22, B52 in C52, namenjene za uporabo v nestanovanjskih prostorih, v katerih se dovajanje zgorevalnega zraka in/ali odvajanje produktov zgorevanja doseže z mehanskimi sredstvi. Ta standard vključuje tudi aparate, ki imajo v dimniškem sistemu vgrajene sekundarne izmenjevalnike toplote.
Ta standard se ne uporablja za:
a) aparate, zasnovane za uporabo v stanovanjskih prostorih;
b) aparate za uporabo na prostem;
c) sevalne grelne linije, pri katerih nazivna moč presega 300 kW (na podlagi neto kalorične vrednosti ustreznega referenčnega preskusnega plina);
d) cevna sevala, pri katerih nazivna moč katerega koli posameznega gorilnika presega 70 kW (na podlagi neto kalorične vrednosti ustreznega referenčnega preskusnega plina);
e) aparate s cevmi za odvajanje produktov zgorevanja v dimniškem sistemu, ki so nekovinske, razen če so cevi v smeri toka za morebitnim dodatnim kondenzacijskim toplotnim izmenjevalnikom izpušnih plinov.
Prav tako se ne uporablja za grelne sisteme, ki vsebujejo več cevnih grelnikov:
f) aparate, ki so zasnovani za stalno kondenzacijo v dimniškem sistemu pri običajnih delovnih pogojih, razen če so v smeri toka za morebitnim dodatnim kondenzacijskim toplotnim izmenjevalnikom izpušnih plinov.
Ta standard se uporablja za aparate, predvidene za tipski preskus.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-januar-2020
Nadomešča:
SIST EN 416-1:2009
SIST EN 416-2:2006
SIST EN 777-4:2009
Stropna plinska linijska sevala in cevna sevala z več plinskimi gorilniki za gretje
nestanovanjskih prostorov - Varnost in energijska učinkovitost
Gas-fired overhead radiant strip heaters and multi-burner continuous radiant tube heater
systems for non-domestic use - Safety and energy efficiency
Gasbefeuerte Strahlungsheizstreifen und Dunkelstrahlersysteme mit mehreren Brennern
für gewerbliche und industrielle Anwendungen - Sicherheit und Energieeffizienz
Bandes radiantes et systèmes à tubes radiants continus à brûleurs multiples suspendus
à usage non domestique utilisant les combustibles gazeux - Sécurité et efficacité
énergétique
Ta slovenski standard je istoveten z: EN 17175:2019
ICS:
97.100.20 Plinski grelniki Gas heaters
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN 17175
EUROPEAN STANDARD
NORME EUROPÉENNE
October 2019
EUROPÄISCHE NORM
ICS 97.100.20 Supersedes EN 416-1:2009, EN 416-2:2006, EN 777-
4:2009
English Version
Gas-fired overhead radiant strip heaters and multi-burner
continuous radiant tube heater systems for non-domestic
use - Safety and energy efficiency
Bandes radiantes et systèmes à tubes radiants continus Gasbefeuerte Strahlungsheizstreifen und
à brûleurs multiples suspendus à usage non Dunkelstrahlersysteme mit mehreren Brennern für
domestique utilisant les combustibles gazeux - Sécurité gewerbliche und industrielle Anwendungen -
et efficacité énergétique Sicherheit und Energieeffizienz
This European Standard was approved by CEN on 26 August 2019.
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-CENELEC 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-CENELEC Management
Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2019 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 17175:2019 E
worldwide for CEN national Members.
Contents Page
European foreword . 6
1 Scope . 7
2 Normative references . 7
3 Terms, definitions and symbols . 9
4 Classification of appliances . 28
5 Constructional requirements . 30
6 Operational requirements . 45
7 Energy Efficiency . 77
8 Requirements of energy efficiency (rational use of energy) . 89
9 Risk assessment . 93
10 Marking and instructions . 93
Annex A (informative) National situations . 101
A.1 General . 101
A.1.1 Categories . 101
A.1.2 Gas rate adjusters, aeration adjusters and regulators . 101
A.1.3 Conversion to different gases . 101
A.2 Gas connections in the various countries . 101
A.3 Flue connections in the various countries . 103
Annex B (informative) Types of appliances . 104
B.1 Single burner overhead radiant strip heaters . 104
B.1.1 Type B appliances with a fan in the combustion circuit . 104
B.1.2 Type C appliances with a fan in the combustion circuit . 106
B.2 Multiple burner overhead continuous radiant tube heater systems - Type B or B
22 52
appliances with a fan in the combustion circuit . 109
Annex C (informative) Equivalence rules . 110
C.1 Conversion to categories within a restricted Wobbe Index range . 110
C.2 Conversion to categories within an identical Wobbe Index range . 110
C.3 Conversion to categories within a wider Wobbe Index range . 111
Annex D (informative) Calculation of the mass flow rate of flue gases . 112
D.1 Flue gas mass flow rate . 112
D.2 Quantity of air in the flue gas . 112
D.3 Flue gas excess air ratio (λ) . 112
D.4 Quantity of water vapour in the flue gas . 113
D.5 Quantity of Nitrogen in the flue gas . 113
D.6 Quantity of Oxygen in the flue gas . 113
D.7 Dry quantity of flue gas . 113
D.8 Quantity of carbon dioxide in the flue gas . 114
Annex E (informative) Identification of the types of gas in use in various countries . 115
Annex F (normative) Special national conditions . 117
Annex G (normative) Calculation of conversions of NO . 118
x
G.1 NO emission conversion factors . 118
x
G.2 NO Conversion — Calculation . 119
x
Annex H (informative) National situations of countries whose national bodies are CEN
associate members . 121
Annex I (informative) Different types of heat input control . 122
Annex J (informative) Radiometer design . 123
J.1 Principle radiometer design features . 123
J.2 Radiometer technical design . 124
J.3 Pyro-electric detector . 124
J.4 Ulbricht Sphere . 124
J.4.1 General . 124
J.4.2 Dimensions of the Ulbricht sphere . 125
J.4.3 Surface of the Ulbricht sphere. 125
J.4.4 Angular responsivity test of the Ulbricht sphere . 126
Annex K (informative) Radiometer calibration . 127
K.1 Radiometer calibration . 127
K.2 Black body calibration equipment and procedure. 127
K.2.1 General . 127
K.2.2 Temperature calibration at reference condition . 128
K.2.3 Temperature calibration at higher temperatures . 129
K.2.4 Calibration calculation . 130
K.3 Calibration procedure in detail, presented as a worked example . 131
K.3.1 Calibration Measurements . 131
K.3.2 Selecting the average readings . 131
K.3.3 Determination of the 1/S sensitivity per temperature . 132
K.3.4 Determining the 1/S sensitivity of the radiometer . 132
K.3.5 Documentation of calibration results . 132
Annex L (normative) Correction of measured radiant output for absorption by H O and CO . 136
2 2
L.1 General . 136
L.2 Calculation method . 138
Annex M (informative) Radiant heat output data - Recording of results . 139
M.1 General information to be recorded . 139
M.1.1 Test and appliance data . 139
M.1.2 Radiometer technical data . 139
M.1.3 Measuring plane technical data . 139
M.2 Measurement results . 140
M.2.1 Test information . 140
M.2.2 Test ambient conditions . 140
M.2.3 Gas/heat input data . 140
M.2.4 Flue gas data. 141
M.2.5 Absorption of water vapour and CO data . 141
M.2.6 Irradiation measurement data . 141
Annex N (informative) Worked example . 142
N.1 General information . 142
N.2 Radiometer technical data . 142
N.3 Measuring plane technical data . 142
N.4 Measurement results . 143
N.4.1 Test information . 143
N.4.2 Test ambient conditions . 143
N.4.3 Gas/heat input data . 143
N.4.4 Flue gas data. 144
N.4.5 Absorption of water vapour and CO data . 144
N.4.6 Irradiation measurement data . 144
Annex O (normative) Flue test probes . 145
Annex P (normative) Product information required . 150
Annex Q (informative) Derivation of equations to determine thermal efficiency . 152
Annex R (normative) Flue gas heat exchanger . 154
R.1 General . 154
R.2 Materials . 154
R.3 Corrosion resistance . 154
R.4 Thermal insulation . 155
R.5 Gas tightness . 155
R.6 Removal of condensate . 155
R.7 Non-metallic flue system . 155
R.8 Frost protection . 156
R.9 Distance to flammable materials . 156
R.10 Safety-related equipment . 156
R.11 Operation over-pressure when using water as secondary medium . 156
R.12 Calculation of the heat transfer performance . 156
R.12.1 Test requirements . 156
R.12.2 Heat transfer calculations . 156
R.12.2.1 Heat transfer efficiency . 156
R.12.2.2 Determination of thermal energy gain by secondary heat transfer medium. 157
R.12.2.3 Determination of thermal energy of the products of combustion . 157
R.12.3 Minimum requirements . 157
Annex S (normative) Uncertainty of measurements. 158
Annex ZA (informative) Relationship between this European Standard and the ecodesign
requirements of Commission Regulation (EU) No 2015/1188 aimed to be covered. 160
Bibliography . 161
European foreword
This document (EN 17175:2019) has been prepared by Technical Committee CEN/TC 180
“Decentralized gas heating”, 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 month year of DOP, and conflicting national standards
shall be withdrawn at the latest by month year of DOW.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN 416-1:2009, EN 416-2:2006 and EN 777-4:2009.
In comparison with the previous editions, the following technical modifications have been made:
— aspects of safety and energy efficiency of appliances are brought together;
— incorporation recent state of art of overhead radiant strips heaters and multi-burner continuous
radiant tube heater systems;
— unique and more detailed description of method to determine radiant factor;
— incorporating terms and calculation scheme of Ecodesign Regulation (EU) No. 2015/1188;
— minimum requirements of an optional flue gas heat exchanger.
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 EU Directive(s).
For relationship with EU Directive(s), see informative Annex ZA, which is an integral part of this
document.
According to the CEN-CENELEC Internal Regulations, the national standards organisations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland,
Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the
United Kingdom.
1 Scope
This document specifies the requirements and test methods for the construction, safety, classification,
marking and efficiency of non-domestic gas-fired overhead radiant strips heaters and multi-burner
continuous radiant tube heater systems (referred to in the body of the text as the “system”) with each
burner unit under the control of an automatic burner control system.
For radiant strip heaters incorporating a single burner, this standard is applicable to Type B , B , B ,
22 23 52
B , C , C , C , C C and C appliances intended for use in other than domestic dwellings, in which
53 12 13 32 33 52 53
the supply of combustion air and/or the evacuation of the products of combustion is achieved by
mechanical means.
For multi-burner continuous radiant tube heater systems this standard is applicable to type B , B , and
22 52
C 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.
This document also includes appliances incorporating a secondary heat exchanger in the flue system.
This document is not applicable to:
a) appliances designed for use in domestic dwelling;
b) outdoor appliances;
c) radiant strip heaters where the heat input is in excess of 300 KW (based on the net calorific value
of the appropriate reference test gas);
d) continuous radiant tube heater systems where the heat input of any individual burner unit is in
excess of 70 kW (based on the net calorific value of the appropriate reference test gas);
e) appliances having combustion products evacuation ducts that are non-metallic in the flue system –
except ducts downstream of a possible additional condensing exhaust gas heat exchanger.
In addition, for heater systems incorporating multiple tube heaters this standard is not applicable to:
f) appliances that are designed for continuous condensation within the flue system under normal
operating conditions – except downstream a possible additional exhaust gas heat exchanger.
This document is applicable to appliances which are intended to be type tested.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements 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 88-1:2011+A1:2016, Pressure regulators and associated safety devices for gas appliances - Part 1:
Pressure regulators for inlet pressures up to and including 50 kPa
EN 126:2012, Multifunctional controls for gas burning appliances
EN 161:2011+A3:2013, Automatic shut-off valves for gas burners and gas appliances
EN 257:2010, Mechanical thermostats for gas-burning appliances
EN 298:2012, Automatic burner control systems for burners and appliances burning gaseous or liquid
fuels
EN 437:2003+A1:2009, Test gases - Test pressures - Appliance categories
EN 1057:2006+A1:2010, Copper and copper alloys - Seamless, round copper tubes for water and gas in
sanitary and heating applications
EN 1106:2010, Manually operated taps for gas burning appliances
EN 1856-1:2009, Chimneys - Requirements for metal chimneys - Part 1: System chimney products
EN 1859:2009+A1:2013, Chimneys - Metal chimneys - Test methods
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 12067-2:2004, Gas/air ratio controls for gas burners and gas burning appliances - Part 2: Electronic
types
EN 13216-1:2004, Chimneys - Test methods for system chimneys - Part 1: General test methods
EN 13410:2001, Gas-fired overhead radiant heaters - Ventilation requirements for non-domestic premises
EN 14459:2015, Safety and control devices for burners and appliances burning gaseous or liquid fuels -
Control functions in electronic systems - Methods for classification and assessment
EN 14597:2012, Temperature control devices and temperature limiters for heat generating systems
EN 14800:2007, Corrugated safety metal hose assemblies for the connection of domestic appliances using
gaseous fuels
EN 60335-1:2012, Household and similar electrical appliances - Safety - Part 1: General requirements
(IEC60335-1:2010)
EN 60335-2-102:2016, Household and similar electrical appliances - Safety - Part 2-102: Particular
requirements for gas, oil and solid-fuel burning appliances having electrical connection
(IEC 60335-2-102:2004)s
EN 60529:1991, Degrees of protection provided by enclosures (IP code) (IEC 60529:1989)
EN 60584-1:2013, Thermocouples - Part 1: EMF specifications and tolerances (IEC 60584-1:2013)
EN 60730-2-9:2010, Automatic electrical controls for household and similar use - Part 2-9: Particular
requirements for temperature sensing controls (IEC 60730-2-9:2008)
EN 60751:2008, Industrial platinum resistance thermometers and platinum temperature sensors
(IEC 60751:2008)
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 3166-1:2014, Codes for the representation of names of countries and their subdivisions - Part 1:
Country codes (ISO 3166-1:2013)
ISO 7-1, Pipe threads where pressure-tight joints are made on the threads — Part 1: Dimensions,
tolerances and designation
ISO 7005-1:2011, Pipe flanges — Part 1: Steel flanges for industrial and general service piping systems
ISO 7005-2:1988, Metallic flanges — Part 2: Cast iron flanges
ISO 7005-3:1988, Metallic flanges — Part 3: Copper alloy and composite flanges
3 Terms, definitions and symbols
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at http://www.iso.org/obp
3.1 System and its constituent parts
3.1.1
radiant strip
gas fired appliance intended for installation above head level which is designed to heat the space
beneath by radiation by means of a strip or large tubes with diameters from 105 – 400 mm, heated by
the internal passage of recirculated combustion products, producing a max. surface temperature of the
radiant strip tube of 400°C, the radiant strip tubes being thermally insulated on the top with a suitable
and durable thermal isolation and thermally protected on the side
3.1.2
single burner heater
radiant tube heaters which employ a single combustion appliance incorporating independent flame
monitoring and combustion air fan
3.1.3
multi-burner continuous radiant tube heater system
any of the following:
— 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; or
— multi-burner continuous radiant tube heaters which employ two or more, in series and/or parallel
connected, fully premixed gas/air burner units with each unit incorporating independent flame
monitoring; or
— heaters in which individual units without fans are connected to a common duct with a fan. One or
more burner units are situated in each branch tube (see Annex B)
Note 1 to entry: The units may be located in one or more sections of tubing. One or more fans may be used to
assist in the evacuation of products of combustion or the supply of combustion air.
3.1.4
radiant strip tube
strip or large tubes with diameters from 105 – 400 mm in which one burner unit is situated and which
only contains the products of combustion generated by this burner
3.1.5
continuous radiant tube heater branch tube
tube in which one or more burner units is/are situated and which only contains the products of
combustion generated by this, or these, burners
3.1.6
burner and recirculation unit (radiant strips)
unit equipped with a main burner, and if appropriate, an ignition burner, a fan that sucks the exhausted
products of combustion at the end of the radiant strips, recirculating a part of them another time in the
radiant strip
Note 1 to entry: The remaining part of the exhaust products will be evacuate through a flue outlet.
Note 2 to entry: A combustion chamber protects the burner head from the recirculation flow and permits the
mixing of the hot recirculating combustion products with new produced combustion products. The section of the
recirculation, between the fan and the combustion chamber of the recirculation unit, may have a fixed or
adjustable section.
3.1.7
individual burner unit (multi-burner continuous radiant tube heater systems)
unit comprising a main burner and, if appropriate, an ignition burner
Note 1 to entry: In addition, such components which are necessary to ignite the burner(s), monitor the flame
and control the gas supply to the burner(s) are included in the unit
3.1.8
inlet connection
part of the burner intended to be connected to the gas supply
3.1.9
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)
3.1.10
gas circuit
part of the burner unit that conveys or contains the gas between the burner unit gas inlet connection
and the burner(s)
3.1.11
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
3.1.12
gas rate adjuster
component allowing to set the gas rate of the burner to a predetermined value according to the supply
conditions
Note 1 to entry: Adjustment can be progressive (screw adjuster) or in discrete steps (by changing restrictors).
Note 2 to entry: The adjusting screw of an adjustable regulator is regarded as a gas rate adjuster.
Note 3 to entry: The action of adjusting this device is called “adjusting the gas rate”.
Note 4 to entry: A factory sealed gas rate adjuster is considered to be non-existent.
Note 5 to entry: Immobilizing a gas rate adjuster by means as e.g. a screw is called “setting an adjuster”.
Note 6 to entry: 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 is called “sealing an adjuster”.
Note 7 to entry: A gas rate adjuster 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 pressures corresponding to the appliance category.
Note 8 to entry: Putting an adjuster or a control (of temperature, pressure, etc.) out of action and sealing it in
this position is called “putting an adjuster or a control out of service”; the appliance functions as if the adjuster or
control had been removed.
3.1.13
injector
component that admits the gas into a burner
3.1.14
main burner
burner that is intended to ensure the thermal function of the appliance
Note 1 to entry: Main burner is generally called “the 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
Note 1 to entry: This device can operate intermittently or permanently.
3.1.16
ignition burner
burner whose flame is intended to ignite another burner
3.1.17
fully pre-mixed gas/air burner
pre-aerated burner system in which gas is mixed in a pre-determined and adjustable ratio with all of
the air necessary for combustion
3.1.18
aeration orifice
device in a burner unit enabling a volume of combustion air to enter the burner or point of combustion
consistent with the gas flow through the gas orifice and variable with downstream negative pressure
3.1.19
primary aeration adjuster
device enabling the primary air to be set at the desired value according to the supply conditions
3.1.20
System aeration adjuster
one or more devices enabling the air flow condition within a branch tube or common duct to be set to
design values
3.1.21
flue gas heat exchanger
heat exchanger directly mounted in the flue system to transfer heat from the combustion products to a
heat sink
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 1 to entry: A fitting piece is not utilized by appliances of Type C1 or of Type C3. It is necessary to
distinguish 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 or C system that connects with a flue to evacuate the products of combustion
3.2.5
terminal
device fitted to the outside of the building, which are connected to the air supply and combustion
products evacuation ducts for Type C and Type C appliances (one or two devices)
1 3
3.2.6
terminal guard
device that protects the terminal from mechanical damage from outside influences
3.2.7
POCED
combustion products evacuation duct that is intended to be used only with specific appliance/system;
this duct being either supplied with the appliances or specified in the technical instructions
3.3 Adjusting, control and safety devices
3.3.1
automatic burner control system
system comprising at least a programming unit and all the elements of a flame detector device
Note 1 to entry: The various functions of an automatic burner control system may be in one or more housings.
3.3.2
programming unit
device which executes the programme reacting to signals from control and safety devices, gives control
commands, controls the start-up sequence, supervises the burner operation and causes controlled shut-
down, and if necessary safety shut-down and lock-out
Note 1 to entry: The programming unit follows a predetermined sequence of actions and always operates in
conjunction with a flame detector device. Such a sequence of operations involving switching on, starting up,
supervising and switching off the burner is called “programme”.
3.3.3
flame detector
device by which the presence of a flame is detected and signalled
Note 1 to entry: it can consist of a flame sensor, an amplifier and a relay for signal transmission. These parts,
with the possible exception of the actual flame sensor, may be assembled in a single housing for use in conjunction
with a programming unit
3.3.4
flame signal
signal given by the flame detector device, normally when the flame sensor senses a flame
3.3.5
pressure regulator
device which maintains the outlet pressure constant independent of the variations in inlet pressure
within defined limits
3.3.6
adjustable pressure regulator
regulator provided with means for changing the outlet pressure setting
3.3.7
volume regulator
device which maintains the gas rate constant within a given tolerance, independent of the upstream
pressure
3.3.8
flame supervision device
device that, in response to a signal from the flame detector, keeps the gas supply open and shuts it off in
the absence of the supervised flame
3.3.9
flame simulation
condition which occurs when the flame signal indicates the presence of a flame when in reality no flame
is present
3.3.10
range-rating device
component on the burner unit intended to be used by the installer to adjust the heat input of the burner
unit, within a range of heat inputs stated by the manufacturer, to suit the actual heat requirements of
the installation
Note 1 to entry: This adjustment may be progressive (e.g. by use of a screw adjuster) or in discrete steps (e.g. by
changing restrictors).
3.3.11
zero regulator
device which maintains a specified downstream pressure between it and a gas orifice at zero pressure
within fixed limits independent of variation within a given range of upstream pressure and negative
pressure downstream of the gas orifice
3.3.12
automatic vacuum regulator
device which maintains a constant negative pressure at a specified position within the tube both at
start-up and at thermal equilibrium conditions
3.3.13
automatic shut-off valve
device that automatically opens, closes or varies the gas rate on a signal from the control circuit and/or
the safety circuit
3.4 Operation of the appliance
3.4.1
heat input
Q
in
quantity of energy used in unit time corresponding to the volumetric or mass flow rates; the calorific
value used being the net or gross calorific value
Note 1 to entry: The heat input is expressed in kW
[SOURCE: EN 437:2003+A1:2009]
3.4.2
nominal heat input
Q
in, nom
value of the heat input (kW) declared by the manufacturer
Note 1 to entry: The heat input is expressed in kW
[SOURCE: EN 437:2003+A1:2009]
3.4.3
volume flow rate
V
volume of gas consumed by the appliance in unit time during continuous operation
Note 1 to entry: The volume flow rate is expressed in m3/h, l/min, dm3/h or dm3/s
[SOURCE: EN 437:2003+A1:2009]
3.4.4
mass flow rate
M
mass of gas consumed by the appliance in unit time during continuous operation
Note 1 to entry: The mass flow rate is expressed in kg/h or g/h
[SOURCE: EN 437:2003+A1:2009]
3.4.5
start gas
gas that is supplied at the start gas rate either at the main burner or at a separate ignition burner
3.4.6
start gas rate
restricted gas flow rate admitted either to a separate ignition burner or to the main burner during start
up
3.4.7
start gas flame
flame established at the start gas rate either at the main burner or at a separate ignition burner
3.4.8
flame stability
characteristic of flames which remain on the burner ports or in the flame reception zone intended by
the construction
3.4.9
flame lift
total or partial lifting of the base of the flame away from the burner port or the flame reception zone
provided by the design;
Note 1 to entry: flame lift may cause the flame to blow out i.e. extinction of the air-gas mixture
3.4.10
light-back
entry of a flame into the body of the burner
3.4.11
light-back at the injector
ignition of the gas at the injector, either as a result of light-back into the burner or by the propagation of
a flame outside the burner
3.4.12
sooting
phenomenon appearing during incomplete combustion and characterized by deposits of soot on the
surfaces or parts in contact with the combustion products or with the flame
3.4.13
yellow tipping
yellowing of the tip of the blue cone of an aerated flame
3.4.14
purge
forced introduction of air through the combustion chamber and flue passages in order to displace any
remaining fuel/air mixture and/or products of combustion
3.4.14.1
pre-purge
purge which takes place between the start signal and the energising of the ignition device
3.4.14.2
post-purge
purge which takes place immediately following shut-down
3.4.15
first safety time
interval between the ignition burner valve, the start gas valve or main gas valve, as applicable, being
energized and the ignition burner valve, start gas valve or main gas valve, as applicable, being de-
energized if the flame detector signals the absence of a flame at the end of this interval
Note 1 to entry: where there is no second safety time, this is called the safety time.
3.4.16
second safety time
interval between the main gas valve being energized and the main gas valve being de-energized if the
flame detector signals the absence of a flame at the end of this interval
Note 1 to entry: The first safety time being applicable to either an ignition burner or start gas flame only.
3.4.17
extinction safety time
time which elapses between the moment when the supervised
...
SLOVENSKI STANDARD
01-januar-2020
Nadomešča:
SIST EN 416-1:2009
SIST EN 416-2:2006
SIST EN 777-4:2009
Stropna plinska linijska sevala in cevna sevala z več plinskimi gorilniki za gretje
nestanovanjskih prostorov - Varnost in energijska učinkovitost
Gas-fired overhead radiant strip heaters and multi-burner continuous radiant tube heater
systems for non-domestic use - Safety and energy efficiency
Gasbefeuerte Strahlungsheizstreifen und Dunkelstrahlersysteme mit mehreren Brennern
für gewerbliche und industrielle Anwendungen - Sicherheit und Energieeffizienz
Bandes radiantes et systèmes à tubes radiants continus à brûleurs multiples suspendus
à usage non domestique utilisant les combustibles gazeux - Sécurité et efficacité
énergétique
Ta slovenski standard je istoveten z: EN 17175:2019
ICS:
97.100.20 Plinski grelniki Gas heaters
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN 17175
EUROPEAN STANDARD
NORME EUROPÉENNE
October 2019
EUROPÄISCHE NORM
ICS 97.100.20 Supersedes EN 416-1:2009, EN 416-2:2006, EN 777-
4:2009
English Version
Gas-fired overhead radiant strip heaters and multi-burner
continuous radiant tube heater systems for non-domestic
use - Safety and energy efficiency
Bandes radiantes et systèmes à tubes radiants continus Gasbefeuerte Strahlungsheizstreifen und
à brûleurs multiples suspendus à usage non Dunkelstrahlersysteme mit mehreren Brennern für
domestique utilisant les combustibles gazeux - Sécurité gewerbliche und industrielle Anwendungen -
et efficacité énergétique Sicherheit und Energieeffizienz
This European Standard was approved by CEN on 26 August 2019.
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-CENELEC 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-CENELEC Management
Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2019 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 17175:2019 E
worldwide for CEN national Members.
Contents Page
European foreword . 6
1 Scope . 7
2 Normative references . 7
3 Terms, definitions and symbols . 9
4 Classification of appliances . 28
5 Constructional requirements . 30
6 Operational requirements . 45
7 Energy Efficiency . 77
8 Requirements of energy efficiency (rational use of energy) . 89
9 Risk assessment . 93
10 Marking and instructions . 93
Annex A (informative) National situations . 101
A.1 General . 101
A.1.1 Categories . 101
A.1.2 Gas rate adjusters, aeration adjusters and regulators . 101
A.1.3 Conversion to different gases . 101
A.2 Gas connections in the various countries . 101
A.3 Flue connections in the various countries . 103
Annex B (informative) Types of appliances . 104
B.1 Single burner overhead radiant strip heaters . 104
B.1.1 Type B appliances with a fan in the combustion circuit . 104
B.1.2 Type C appliances with a fan in the combustion circuit . 106
B.2 Multiple burner overhead continuous radiant tube heater systems - Type B or B
22 52
appliances with a fan in the combustion circuit . 109
Annex C (informative) Equivalence rules . 110
C.1 Conversion to categories within a restricted Wobbe Index range . 110
C.2 Conversion to categories within an identical Wobbe Index range . 110
C.3 Conversion to categories within a wider Wobbe Index range . 111
Annex D (informative) Calculation of the mass flow rate of flue gases . 112
D.1 Flue gas mass flow rate . 112
D.2 Quantity of air in the flue gas . 112
D.3 Flue gas excess air ratio (λ) . 112
D.4 Quantity of water vapour in the flue gas . 113
D.5 Quantity of Nitrogen in the flue gas . 113
D.6 Quantity of Oxygen in the flue gas . 113
D.7 Dry quantity of flue gas . 113
D.8 Quantity of carbon dioxide in the flue gas . 114
Annex E (informative) Identification of the types of gas in use in various countries . 115
Annex F (normative) Special national conditions . 117
Annex G (normative) Calculation of conversions of NO . 118
x
G.1 NO emission conversion factors . 118
x
G.2 NO Conversion — Calculation . 119
x
Annex H (informative) National situations of countries whose national bodies are CEN
associate members . 121
Annex I (informative) Different types of heat input control . 122
Annex J (informative) Radiometer design . 123
J.1 Principle radiometer design features . 123
J.2 Radiometer technical design . 124
J.3 Pyro-electric detector . 124
J.4 Ulbricht Sphere . 124
J.4.1 General . 124
J.4.2 Dimensions of the Ulbricht sphere . 125
J.4.3 Surface of the Ulbricht sphere. 125
J.4.4 Angular responsivity test of the Ulbricht sphere . 126
Annex K (informative) Radiometer calibration . 127
K.1 Radiometer calibration . 127
K.2 Black body calibration equipment and procedure. 127
K.2.1 General . 127
K.2.2 Temperature calibration at reference condition . 128
K.2.3 Temperature calibration at higher temperatures . 129
K.2.4 Calibration calculation . 130
K.3 Calibration procedure in detail, presented as a worked example . 131
K.3.1 Calibration Measurements . 131
K.3.2 Selecting the average readings . 131
K.3.3 Determination of the 1/S sensitivity per temperature . 132
K.3.4 Determining the 1/S sensitivity of the radiometer . 132
K.3.5 Documentation of calibration results . 132
Annex L (normative) Correction of measured radiant output for absorption by H O and CO . 136
2 2
L.1 General . 136
L.2 Calculation method . 138
Annex M (informative) Radiant heat output data - Recording of results . 139
M.1 General information to be recorded . 139
M.1.1 Test and appliance data . 139
M.1.2 Radiometer technical data . 139
M.1.3 Measuring plane technical data . 139
M.2 Measurement results . 140
M.2.1 Test information . 140
M.2.2 Test ambient conditions . 140
M.2.3 Gas/heat input data . 140
M.2.4 Flue gas data. 141
M.2.5 Absorption of water vapour and CO data . 141
M.2.6 Irradiation measurement data . 141
Annex N (informative) Worked example . 142
N.1 General information . 142
N.2 Radiometer technical data . 142
N.3 Measuring plane technical data . 142
N.4 Measurement results . 143
N.4.1 Test information . 143
N.4.2 Test ambient conditions . 143
N.4.3 Gas/heat input data . 143
N.4.4 Flue gas data. 144
N.4.5 Absorption of water vapour and CO data . 144
N.4.6 Irradiation measurement data . 144
Annex O (normative) Flue test probes . 145
Annex P (normative) Product information required . 150
Annex Q (informative) Derivation of equations to determine thermal efficiency . 152
Annex R (normative) Flue gas heat exchanger . 154
R.1 General . 154
R.2 Materials . 154
R.3 Corrosion resistance . 154
R.4 Thermal insulation . 155
R.5 Gas tightness . 155
R.6 Removal of condensate . 155
R.7 Non-metallic flue system . 155
R.8 Frost protection . 156
R.9 Distance to flammable materials . 156
R.10 Safety-related equipment . 156
R.11 Operation over-pressure when using water as secondary medium . 156
R.12 Calculation of the heat transfer performance . 156
R.12.1 Test requirements . 156
R.12.2 Heat transfer calculations . 156
R.12.2.1 Heat transfer efficiency . 156
R.12.2.2 Determination of thermal energy gain by secondary heat transfer medium. 157
R.12.2.3 Determination of thermal energy of the products of combustion . 157
R.12.3 Minimum requirements . 157
Annex S (normative) Uncertainty of measurements. 158
Annex ZA (informative) Relationship between this European Standard and the ecodesign
requirements of Commission Regulation (EU) No 2015/1188 aimed to be covered. 160
Bibliography . 161
European foreword
This document (EN 17175:2019) has been prepared by Technical Committee CEN/TC 180
“Decentralized gas heating”, 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 month year of DOP, and conflicting national standards
shall be withdrawn at the latest by month year of DOW.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN 416-1:2009, EN 416-2:2006 and EN 777-4:2009.
In comparison with the previous editions, the following technical modifications have been made:
— aspects of safety and energy efficiency of appliances are brought together;
— incorporation recent state of art of overhead radiant strips heaters and multi-burner continuous
radiant tube heater systems;
— unique and more detailed description of method to determine radiant factor;
— incorporating terms and calculation scheme of Ecodesign Regulation (EU) No. 2015/1188;
— minimum requirements of an optional flue gas heat exchanger.
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 EU Directive(s).
For relationship with EU Directive(s), see informative Annex ZA, which is an integral part of this
document.
According to the CEN-CENELEC Internal Regulations, the national standards organisations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland,
Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the
United Kingdom.
1 Scope
This document specifies the requirements and test methods for the construction, safety, classification,
marking and efficiency of non-domestic gas-fired overhead radiant strips heaters and multi-burner
continuous radiant tube heater systems (referred to in the body of the text as the “system”) with each
burner unit under the control of an automatic burner control system.
For radiant strip heaters incorporating a single burner, this standard is applicable to Type B , B , B ,
22 23 52
B , C , C , C , C C and C appliances intended for use in other than domestic dwellings, in which
53 12 13 32 33 52 53
the supply of combustion air and/or the evacuation of the products of combustion is achieved by
mechanical means.
For multi-burner continuous radiant tube heater systems this standard is applicable to type B , B , and
22 52
C 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.
This document also includes appliances incorporating a secondary heat exchanger in the flue system.
This document is not applicable to:
a) appliances designed for use in domestic dwelling;
b) outdoor appliances;
c) radiant strip heaters where the heat input is in excess of 300 KW (based on the net calorific value
of the appropriate reference test gas);
d) continuous radiant tube heater systems where the heat input of any individual burner unit is in
excess of 70 kW (based on the net calorific value of the appropriate reference test gas);
e) appliances having combustion products evacuation ducts that are non-metallic in the flue system –
except ducts downstream of a possible additional condensing exhaust gas heat exchanger.
In addition, for heater systems incorporating multiple tube heaters this standard is not applicable to:
f) appliances that are designed for continuous condensation within the flue system under normal
operating conditions – except downstream a possible additional exhaust gas heat exchanger.
This document is applicable to appliances which are intended to be type tested.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements 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 88-1:2011+A1:2016, Pressure regulators and associated safety devices for gas appliances - Part 1:
Pressure regulators for inlet pressures up to and including 50 kPa
EN 126:2012, Multifunctional controls for gas burning appliances
EN 161:2011+A3:2013, Automatic shut-off valves for gas burners and gas appliances
EN 257:2010, Mechanical thermostats for gas-burning appliances
EN 298:2012, Automatic burner control systems for burners and appliances burning gaseous or liquid
fuels
EN 437:2003+A1:2009, Test gases - Test pressures - Appliance categories
EN 1057:2006+A1:2010, Copper and copper alloys - Seamless, round copper tubes for water and gas in
sanitary and heating applications
EN 1106:2010, Manually operated taps for gas burning appliances
EN 1856-1:2009, Chimneys - Requirements for metal chimneys - Part 1: System chimney products
EN 1859:2009+A1:2013, Chimneys - Metal chimneys - Test methods
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 12067-2:2004, Gas/air ratio controls for gas burners and gas burning appliances - Part 2: Electronic
types
EN 13216-1:2004, Chimneys - Test methods for system chimneys - Part 1: General test methods
EN 13410:2001, Gas-fired overhead radiant heaters - Ventilation requirements for non-domestic premises
EN 14459:2015, Safety and control devices for burners and appliances burning gaseous or liquid fuels -
Control functions in electronic systems - Methods for classification and assessment
EN 14597:2012, Temperature control devices and temperature limiters for heat generating systems
EN 14800:2007, Corrugated safety metal hose assemblies for the connection of domestic appliances using
gaseous fuels
EN 60335-1:2012, Household and similar electrical appliances - Safety - Part 1: General requirements
(IEC60335-1:2010)
EN 60335-2-102:2016, Household and similar electrical appliances - Safety - Part 2-102: Particular
requirements for gas, oil and solid-fuel burning appliances having electrical connection
(IEC 60335-2-102:2004)s
EN 60529:1991, Degrees of protection provided by enclosures (IP code) (IEC 60529:1989)
EN 60584-1:2013, Thermocouples - Part 1: EMF specifications and tolerances (IEC 60584-1:2013)
EN 60730-2-9:2010, Automatic electrical controls for household and similar use - Part 2-9: Particular
requirements for temperature sensing controls (IEC 60730-2-9:2008)
EN 60751:2008, Industrial platinum resistance thermometers and platinum temperature sensors
(IEC 60751:2008)
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 3166-1:2014, Codes for the representation of names of countries and their subdivisions - Part 1:
Country codes (ISO 3166-1:2013)
ISO 7-1, Pipe threads where pressure-tight joints are made on the threads — Part 1: Dimensions,
tolerances and designation
ISO 7005-1:2011, Pipe flanges — Part 1: Steel flanges for industrial and general service piping systems
ISO 7005-2:1988, Metallic flanges — Part 2: Cast iron flanges
ISO 7005-3:1988, Metallic flanges — Part 3: Copper alloy and composite flanges
3 Terms, definitions and symbols
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at http://www.iso.org/obp
3.1 System and its constituent parts
3.1.1
radiant strip
gas fired appliance intended for installation above head level which is designed to heat the space
beneath by radiation by means of a strip or large tubes with diameters from 105 – 400 mm, heated by
the internal passage of recirculated combustion products, producing a max. surface temperature of the
radiant strip tube of 400°C, the radiant strip tubes being thermally insulated on the top with a suitable
and durable thermal isolation and thermally protected on the side
3.1.2
single burner heater
radiant tube heaters which employ a single combustion appliance incorporating independent flame
monitoring and combustion air fan
3.1.3
multi-burner continuous radiant tube heater system
any of the following:
— 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; or
— multi-burner continuous radiant tube heaters which employ two or more, in series and/or parallel
connected, fully premixed gas/air burner units with each unit incorporating independent flame
monitoring; or
— heaters in which individual units without fans are connected to a common duct with a fan. One or
more burner units are situated in each branch tube (see Annex B)
Note 1 to entry: The units may be located in one or more sections of tubing. One or more fans may be used to
assist in the evacuation of products of combustion or the supply of combustion air.
3.1.4
radiant strip tube
strip or large tubes with diameters from 105 – 400 mm in which one burner unit is situated and which
only contains the products of combustion generated by this burner
3.1.5
continuous radiant tube heater branch tube
tube in which one or more burner units is/are situated and which only contains the products of
combustion generated by this, or these, burners
3.1.6
burner and recirculation unit (radiant strips)
unit equipped with a main burner, and if appropriate, an ignition burner, a fan that sucks the exhausted
products of combustion at the end of the radiant strips, recirculating a part of them another time in the
radiant strip
Note 1 to entry: The remaining part of the exhaust products will be evacuate through a flue outlet.
Note 2 to entry: A combustion chamber protects the burner head from the recirculation flow and permits the
mixing of the hot recirculating combustion products with new produced combustion products. The section of the
recirculation, between the fan and the combustion chamber of the recirculation unit, may have a fixed or
adjustable section.
3.1.7
individual burner unit (multi-burner continuous radiant tube heater systems)
unit comprising a main burner and, if appropriate, an ignition burner
Note 1 to entry: In addition, such components which are necessary to ignite the burner(s), monitor the flame
and control the gas supply to the burner(s) are included in the unit
3.1.8
inlet connection
part of the burner intended to be connected to the gas supply
3.1.9
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)
3.1.10
gas circuit
part of the burner unit that conveys or contains the gas between the burner unit gas inlet connection
and the burner(s)
3.1.11
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
3.1.12
gas rate adjuster
component allowing to set the gas rate of the burner to a predetermined value according to the supply
conditions
Note 1 to entry: Adjustment can be progressive (screw adjuster) or in discrete steps (by changing restrictors).
Note 2 to entry: The adjusting screw of an adjustable regulator is regarded as a gas rate adjuster.
Note 3 to entry: The action of adjusting this device is called “adjusting the gas rate”.
Note 4 to entry: A factory sealed gas rate adjuster is considered to be non-existent.
Note 5 to entry: Immobilizing a gas rate adjuster by means as e.g. a screw is called “setting an adjuster”.
Note 6 to entry: 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 is called “sealing an adjuster”.
Note 7 to entry: A gas rate adjuster 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 pressures corresponding to the appliance category.
Note 8 to entry: Putting an adjuster or a control (of temperature, pressure, etc.) out of action and sealing it in
this position is called “putting an adjuster or a control out of service”; the appliance functions as if the adjuster or
control had been removed.
3.1.13
injector
component that admits the gas into a burner
3.1.14
main burner
burner that is intended to ensure the thermal function of the appliance
Note 1 to entry: Main burner is generally called “the 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
Note 1 to entry: This device can operate intermittently or permanently.
3.1.16
ignition burner
burner whose flame is intended to ignite another burner
3.1.17
fully pre-mixed gas/air burner
pre-aerated burner system in which gas is mixed in a pre-determined and adjustable ratio with all of
the air necessary for combustion
3.1.18
aeration orifice
device in a burner unit enabling a volume of combustion air to enter the burner or point of combustion
consistent with the gas flow through the gas orifice and variable with downstream negative pressure
3.1.19
primary aeration adjuster
device enabling the primary air to be set at the desired value according to the supply conditions
3.1.20
System aeration adjuster
one or more devices enabling the air flow condition within a branch tube or common duct to be set to
design values
3.1.21
flue gas heat exchanger
heat exchanger directly mounted in the flue system to transfer heat from the combustion products to a
heat sink
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 1 to entry: A fitting piece is not utilized by appliances of Type C1 or of Type C3. It is necessary to
distinguish 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 or C system that connects with a flue to evacuate the products of combustion
3.2.5
terminal
device fitted to the outside of the building, which are connected to the air supply and combustion
products evacuation ducts for Type C and Type C appliances (one or two devices)
1 3
3.2.6
terminal guard
device that protects the terminal from mechanical damage from outside influences
3.2.7
POCED
combustion products evacuation duct that is intended to be used only with specific appliance/system;
this duct being either supplied with the appliances or specified in the technical instructions
3.3 Adjusting, control and safety devices
3.3.1
automatic burner control system
system comprising at least a programming unit and all the elements of a flame detector device
Note 1 to entry: The various functions of an automatic burner control system may be in one or more housings.
3.3.2
programming unit
device which executes the programme reacting to signals from control and safety devices, gives control
commands, controls the start-up sequence, supervises the burner operation and causes controlled shut-
down, and if necessary safety shut-down and lock-out
Note 1 to entry: The programming unit follows a predetermined sequence of actions and always operates in
conjunction with a flame detector device. Such a sequence of operations involving switching on, starting up,
supervising and switching off the burner is called “programme”.
3.3.3
flame detector
device by which the presence of a flame is detected and signalled
Note 1 to entry: it can consist of a flame sensor, an amplifier and a relay for signal transmission. These parts,
with the possible exception of the actual flame sensor, may be assembled in a single housing for use in conjunction
with a programming unit
3.3.4
flame signal
signal given by the flame detector device, normally when the flame sensor senses a flame
3.3.5
pressure regulator
device which maintains the outlet pressure constant independent of the variations in inlet pressure
within defined limits
3.3.6
adjustable pressure regulator
regulator provided with means for changing the outlet pressure setting
3.3.7
volume regulator
device which maintains the gas rate constant within a given tolerance, independent of the upstream
pressure
3.3.8
flame supervision device
device that, in response to a signal from the flame detector, keeps the gas supply open and shuts it off in
the absence of the supervised flame
3.3.9
flame simulation
condition which occurs when the flame signal indicates the presence of a flame when in reality no flame
is present
3.3.10
range-rating device
component on the burner unit intended to be used by the installer to adjust the heat input of the burner
unit, within a range of heat inputs stated by the manufacturer, to suit the actual heat requirements of
the installation
Note 1 to entry: This adjustment may be progressive (e.g. by use of a screw adjuster) or in discrete steps (e.g. by
changing restrictors).
3.3.11
zero regulator
device which maintains a specified downstream pressure between it and a gas orifice at zero pressure
within fixed limits independent of variation within a given range of upstream pressure and negative
pressure downstream of the gas orifice
3.3.12
automatic vacuum regulator
device which maintains a constant negative pressure at a specified position within the tube both at
start-up and at thermal equilibrium conditions
3.3.13
automatic shut-off valve
device that automatically opens, closes or varies the gas rate on a signal from the control circuit and/or
the safety circuit
3.4 Operation of the appliance
3.4.1
heat input
Q
in
quantity of energy used in unit time corresponding to the volumetric or mass flow rates; the calorific
value used being the net or gross calorific value
Note 1 to entry: The heat input is expressed in kW
[SOURCE: EN 437:2003+A1:2009]
3.4.2
nominal heat input
Q
in, nom
value of the heat input (kW) declared by the manufacturer
Note 1 to entry: The heat input is expressed in kW
[SOURCE: EN 437:2003+A1:2009]
3.4.3
volume flow rate
V
volume of gas consumed by the appliance in unit time during continuous operation
Note 1 to entry: The volume flow rate is expressed in m3/h, l/min, dm3/h or dm3/s
[SOURCE: EN 437:2003+A1:2009]
3.4.4
mass flow rate
M
mass of gas consumed by the appliance in unit time during continuous operation
Note 1 to entry: The mass flow rate is expressed in kg/h or g/h
[SOURCE: EN 437:2003+A1:2009]
3.4.5
start gas
gas that is supplied at the start gas rate either at the main burner or at a separate ignition burner
3.4.6
start gas rate
restricted gas flow rate admitted either to a separate ignition burner or to the main burner during start
up
3.4.7
start gas flame
flame established at the start gas rate either at the main burner or at a separate ignition burner
3.4.8
flame stability
characteristic of flames which remain on the burner ports or in the flame reception zone intended by
the construction
3.4.9
flame lift
total or partial lifting of the base of the flame away from the burner port or the flame reception zone
provided by the design;
Note 1 to entry: flame lift may cause the flame to blow out i.e. extinction of the air-gas mixture
3.4.10
light-back
entry of a flame into the body of the burner
3.4.11
light-back at the injector
ignition of the gas at the injector, either as a result of light-back into the burner or by the propagation of
a flame outside the burner
3.4.12
sooting
phenomenon appearing during incomplete combustion and characterized by deposits of soot on the
surfaces or parts in contact with the combustion products or with the flame
3.4.13
yellow tipping
yellowing of the tip of the blue cone of an aerated flame
3.4.14
purge
forced introduction of air through the combustion chamber and flue passages in order to displace any
remaining fuel/air mixture and/or products of combustion
3.4.14.1
pre-purge
purge which takes place between the start signal and the energising of the ignition device
3.4.14.2
post-purge
purge which takes place immediately following shut-down
3.4.15
first safety time
interval between the ignition burner valve, the start gas valve or main gas valve, as applicable, being
energized and the ignition burner valve, start gas valve or main gas valve, as applicable, being de-
energized if the flame detector signals the absence of a flame at the end of this interval
Note 1 to entry: where there is no second safety time, this is called the safety time.
3.4.16
second safety time
interval between the main gas valve being energized and the main gas valve being de-energized if the
flame detector signals the absence of a flame at the end of this interval
Note 1 to entry: The first safety time being applicable to either an ignition burner or start gas flame only.
3.4.17
extinction safety time
time which elapses between the moment when the supervised
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