EN 50465:2008
(Main)Gas appliances - Fuel cell gas heating appliances - Fuel cell gas heating appliance of nominal heat input inferior or equal to 70 kW
Gas appliances - Fuel cell gas heating appliances - Fuel cell gas heating appliance of nominal heat input inferior or equal to 70 kW
This European Standard applies to the construction, the safety, the functional requirements and the test methods, as well as the classification and the marking of a fuel cell gas heating appliance, which will be operated predominantly heat followed, meeting the following boundary conditions: – maximum heat load (gas input): 70 kW – maximum electrical output: 11 kW. NOTE Due to the fact, that there are national deviations on the maximum electrical output in Europe, this maximum electrical output is independent referring the number of connected phases to the public low voltage grid. – fuel: combustion gas in accordance with EN 437 – maximum heating water temperature: 95 °C (under normal operational conditions) – process pressures in the fuel cell gas appliance: – heating water: max. 6 bar – domestic hot water (if installed): max. 10 bar – device construction: According to the expositions in accordance with CEN/TR 1749, EN 483 or EN 297 (B22, B23, B32, B33, C12, C13, C32, C33, C42, C43, C52, C53, C62, C63, C82, C83) ). This European Standard applies to type testing only. This European Standard does not contain the requirements necessary for appliances for producing electrical energy without thermal energy.
Gasgeräte - Brennstoffzellen-Gasheizgeräte - Brennstoffzellen-Gasheizgerät mit einer Nennwärmebelastung kleiner oder gleich 70 kW
Diese Europäische Norm legt die Anforderungen an den Bau, die Sicherheit, die Funktion und die Prüfmethoden fest, sowie die Einteilung und die Kennzeichnung von Brennstoffzellen-Gasheizgeräten, die überwiegend wärmegeführt betrieben werden und die folgenden Grenzbedingungen einhalten: – maximale Wärmebelastung (Gaszufuhr): 70 kW; – maximale elektrische Ausgangsleistung: 11 kW. ANMERKUNG Aufgrund der national unterschiedlichen maximalen elektrischen Ausgangsleistung in Europa bezieht sich diese maximale elektrische Ausgangsleistung nicht auf die Anzahl der mit dem öffentlichen Niederspannungsnetz verbundenen Phasen. – Brennstoff: Brenngas nach EN 437; – maximale Heizwassertemperatur: 95 °C (unter normalen Betriebsbedingungen); – Prozessdrücke im Brennstoffzellen-Gasgerät: – Heizwasser: max. 6 bar; – Heißwasser für den häuslichen Gebrauch (falls eingebaut): max. 10 bar; – Bauweise des Gerätes: Nach den Darstellungen von CEN/TR 1749, EN 483 oder EN 297 (B22,B23, B32, B33, C12, C13, C32, C33, C42, C43, C52, C53, C62, C63, C82, C83) 1). Diese Norm gilt nur für Baumusterprüfungen. In dieser Europäischen Norm sind keine notwendigen Anforderungen für Geräte, die elektrische Energie ohne thermische Energie erzeugen, enthalten.
Appareils fonctionnant au gaz - Appareils à gaz produisant de la chaleur au moyen d'une pile à combustible - Appareil de chauffage produisant de la chaleur au moyen d'une pile à combustible dont le débit calorifique nominal est inférieur ou égal à 70 kW
Cette Norme Européenne s'applique à la construction, la sécurité, aux exigences de fonctionnement et aux méthodes d'essais ainsi qu'à la classification et au marquage des appareils de chauffage comportant une pile à combustible fonctionnant principalement pour le chauffage, dans les conditions limites suivantes: – puissance maximale (alimentation gaz): 70 kW – puissance électrique maximale fournie: 11 kW NOTE Etant donné qu'il y a des divergences nationales en Europe sur la puissance électrique maximale fournie, cette puissance électrique maximale fournie est indépendante du nombre de phases raccordées au réseau public basse tension. – combustible: gaz combustible conforme à la EN 437 – température maximale d'eau de chauffage: 95 °C (dans les conditions normales de fonctionnement) – pression de service dans l'appareil à gaz comportant une pile à combustible: – eau de chauffage: max. 6 bar – eau chaude sanitaire (si installée): max. 10 bar – construction de l'appareil: Selon les expositions d'après les CEN/TR 1749, EN 483 ou EN 297 (B22, B23, B32, B33, C12, C13, C32, C33, C42, C43, C52, C53, C62, C63, C82, C83) ). Cette Norme Européenne ne s’applique qu’aux essais de type. Cette Norme Européenne ne contient pas les exigences applicables aux appareils produisant de l'électricité sans énergie thermique.
Plinske naprave - Naprave za ogrevanje s plinskimi gorivnimi celicami - Naprave za ogrevanje s plinskimi gorivnimi celicami z imensko močjo do vključno 70 kW
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN 50465:2009
01-januar-2009
3OLQVNHQDSUDYH1DSUDYH]DRJUHYDQMHVSOLQVNLPLJRULYQLPLFHOLFDPL1DSUDYH]D
RJUHYDQMHVSOLQVNLPLJRULYQLPLFHOLFDPL]LPHQVNRPRþMRGRYNOMXþQRN:Gas appliances - Fuel cell gas heating appliance - Fuel cell gas heating appliance of
nominal heat input inferior or equal to 70 kWGasgeräte - Brennstoffzellen-Gasheizgerät - Brennstoffzellen-Gasheizgerät mit einer
Nennwärmebelastung kleiner oder gleich 70 kWAppareils fonctionnant au gaz - Appareil à gaz produisant de la chaleur au moyen d'une
pile à combustible - Appareil de chauffage produisant de la chaleur au moyen d'une pile
à combustible dont le débit calorifique nominal est inférieur ou égal à 70 kWTa slovenski standard je istoveten z: EN 50465:2008
ICS:
27.070 Gorilne celice Fuel cells
97.100.20 Plinski grelniki Gas heaters
SIST EN 50465:2009 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
---------------------- Page: 1 ----------------------SIST EN 50465:2009
---------------------- Page: 2 ----------------------
SIST EN 50465:2009
EUROPEAN STANDARD
EN 50465
NORME EUROPÉENNE
October 2008
EUROPÄISCHE NORM
ICS 27.070; 97.100.99
English version
Gas appliances -
Fuel cell gas heating appliances -
Fuel cell gas heating appliance of nominal heat input
inferior or equal to 70 kW
Appareils fonctionnant au gaz - Gasgeräte -
Appareils à gaz produisant de la chaleur Brennstoffzellen-Gasheizgeräte -
au moyen d'une pile à combustible - Brennstoffzellen-Gasheizgerät
Appareil de chauffage produisant mit einer Nennwärmebelastung
de la chaleur au moyen d'une pile kleiner oder gleich 70 kW
à combustible dont le débit calorifique
nominal est inférieur ou égal à 70 kW
This European Standard was approved by CENELEC on 2008-05-01.
CEN and CENELEC 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 CENELEC Central Secretariat or to any CEN or CENELEC 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 or CENELEC member into its own language and
notified to the CENELEC Central Secretariat has the same status as the official versions.
CEN and CENELEC members are the national standards bodies and national electrotechnical committees,
respectively, of Austria, Belgium, Bulgaria, Cyprus, the Czech Republic, Denmark, Estonia, Finland, France,
Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands,
Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom.
CEN Management Centre: CENELEC Central Secretariat:rue de Stassart, 36 – B-1050 Brussels rue de Stassart, 35 – B-1050 Brussels
© 2008 CEN/CENELEC - All rights of exploitation in any form and by any means reserved
worldwide for CEN national members and for CENELEC members.Ref. No. EN 50465:2008 E
---------------------- Page: 3 ----------------------
SIST EN 50465:2009
EN 50465:2008 – 2 –
Foreword
This European Standard was prepared by the CEN/CLC/JWG FCGA, “Fuel cell gas appliances”.
The text of the draft was submitted to the formal vote and was approved by CENELEC as EN 50465 on
2008-05-01.The following dates were fixed:
– latest date by which the EN has to be implemented
at national level by publication of an identical
national standard or by endorsement (dop) 2009-05-01
– latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2011-05-01
This European Standard has been prepared under Mandate M/349 given to CEN and CENELEC by the
European Commission and the European Free Trade Association and covers essential requirements of
EC Directive 90/396/EEC (see Annex ZZ, which is an integral part of this document).
The essential requirement of EC Directive 90/396/EEC relating to "rational use of energy" is defined by the
maximum quantity of energy recovered (thermal and electrical energy output) from the gas energy input.
This European Standard deals with a very early state of new technology. The requirements of this European
Standard are not intended to constrain innovations. When considering materials, designs or constructions not
specifically dealt with in this European Standard the alternatives shall be evaluated as to their ability to yield
levels of safety and performance equivalent to those prescribed by this European Standard. This can be done
by a risk assessment. Furthermore not all requirements could be described in detail up to now. This is valid both
for the requirements and the test procedures. This will be done in later revisions of this European Standard.
Guidance to fuel cell stacks and their performance may be found in EN 62282-2.Due to the development of new technology other solutions than those described in this standard are possible if
these solutions provide at least an equivalent level of safety.Matters related to quality assurance systems, tests during production, and certificates of conformity of auxiliary
devices are not dealt with in this European Standard.__________
---------------------- Page: 4 ----------------------
SIST EN 50465:2009
– 3 – EN 50465:2008
Contents
1 Scope ............................................................................................................................................................... 6
2 Normative references ..................................................................................................................................... 6
3 Definitions ....................................................................................................................................................... 8
4 Classification ................................................................................................................................................ 23
4.1 Gases / Category................................................................................................................................... 23
4.2 Mode of air supply and evacuation of combustion products ................................................................ 24
4.3 Maximum water side operating pressure .............................................................................................. 25
5 Constructional requirements ...................................................................................................................... 26
5.1 General construction (method of construction) ..................................................................................... 26
5.2 Conversion to different gases ................................................................................................................ 29
5.3 Materials and thicknesses ..................................................................................................................... 29
5.4 Gas circuit .............................................................................................................................................. 40
5.5 Cooling circuit / Water circuit ................................................................................................................. 42
5.6 Electrical equipment .............................................................................................................................. 42
5.7 Requirements for adjusting, control and safety devices (if applicable) ................................................. 43
5.8 Pressure test points ............................................................................................................................... 47
6 Operational requirements ............................................................................................................................ 48
6.1 General requirem ents ............................................................................................................................ 48
6.2 Soundness ............................................................................................................................................. 48
6.3 Heat inputs and heat output .................................................................................................................. 50
6.4 Safety of operation (Temperatures / Limit gas) ..................................................................................... 50
6.5 Start / Release of adjusting, control and safety devices (if applicable) ................................................. 54
6.6 Overall efficiency at the nominal heat input .......................................................................................... 58
6.7 Operation ............................................................................................................................................... 58
6.8 Combustion ........................................................................................................................................... 58
6.9 Resistance of the materials to pressure ................................................................................................ 59
6.10 Hydraulic resistance .............................................................................................................................. 60
7 Test methods ................................................................................................................................................ 60
7.1 General test conditions .......................................................................................................................... 60
7.2 Soundness ............................................................................................................................................. 68
7.3 Heat input and heat output .................................................................................................................... 71
7.4 Safety of operation ................................................................................................................................ 73
7.5 Start / Release (if applicable) ................................................................................................................ 87
7.6 Overall efficiency at the nominal heat input .......................................................................................... 91
7.7 Operation ............................................................................................................................................... 92
7.8 Combustion ........................................................................................................................................... 92
7.9 Resistance of the materials to pressure ................................................................................................ 96
7.10 Hydraulic resistance .............................................................................................................................. 97
8 EMC / Electrical requirements ..................................................................................................................... 98
9 Marking, installation and operating instructions ...................................................................................... 99
9.1 Fuel cell gas heating appliance marking ............................................................................................... 99
9.2 Fuel cell heating appliance installation instructions ............................................................................ 102
9.3 Fuel cell gas heating appliance operating instructions (users instruction) .......................................... 104
9.4 Conversion instructions ....................................................................................................................... 105
9.5 Presentation ........................................................................................................................................ 105
Annex A (informative) National situations ....................................................................................................... 106
A.1 Categories marketed in the various countries ..................................................................................... 106
A.2 FCGHA supply pressures .................................................................................................................... 108
A.3 Gas connections conditions in common use in the various countries ................................................. 109
Annex B (informative) Particular national conditions .................................................................................... 110
B.1 Gas groups distributed locally ............................................................................................................. 110
B.2 Special categories marketed nationally or locally ............................................................................... 110
B.3 Particular conditions ............................................................................................................................ 110
---------------------- Page: 5 ----------------------SIST EN 50465:2009
EN 50465:2008 – 4 –
Annex C (informative) Classification of type B and type C fuel cell gas heating appliances .................... 111
Annex D (informative) Composition of the gas circuit ................................................................................... 115
D.1 Minimum requirements for fuel cell gas heating appliance with fan, with ignition burner or
prepurge .............................................................................................................................................. 115
D.2 Minimum requirements for fuel cell gas heating appliances with fan, without permanent or
alternating ignition burner and without prepurge ................................................................................. 116
Annex E (informative) Practical method of calibrating the test rig to enable the heat loss D to be
determined .................................................................................................................................................. 117
Annex F (informative) A-deviations .................................................................................................................. 118
Annex G (informative) Main symbols and abbreviations used...................................................................... 119
Annex H (informative) Examples for marking ................................................................................................. 120
H.1 Data-plate (see 9.1.2) .......................................................................................................................... 120
H.2 Additional data-plate (see 9.1.3) ......................................................................................................... 120
Annex I (informative) Calculation of conversions of NO .............................................................................. 121
Annex J (informative) Requirements and test methods for separate air supply and combustion
products evacuation ducts of type C appliances ................................................................................. 122
J.1 Requirements ...................................................................................................................................... 122
J.2 Test methods ....................................................................................................................................... 123
Annex ZZ (informative) Coverage of Essential Requirements of EC Directives .......................................... 126
Bibliography ....................................................................................................................................................... 129
FiguresFigure 1 – Typical set-up of a fuel cell gas heating appliance (all-in-one type) .................................................... 11
Figure 2 – Fuel cell gas heating appliance with external thermal conditioning system ......................................... 12
Figure 3 – Example for a sampling probe for the measurement of the products of combustion ........................... 62
Figure 4 – Example for the location of the probe at a C type appliance ............................................................... 63
Figure 5 – Test rig for the determination of the efficiency ..................................................................................... 65
Figure 6 – Test rig for the soundness of the gas circuit ........................................................................................ 67
Figure 7 – Test rig for the soundness of components (pressure drop method) .................................................... 68
Figure 8 – Test rig for thermostats: short cut circulation ....................................................................................... 75
Figure 9 – Test rig for thermostats with heat exchanger ....................................................................................... 76
Figure 10 – Test rig for type C appliances, equipped with horizontal wind protection device at a vertical wall .... 80
Figure 11 – Test rig for type C appliances for installation in buildings with tilted roof ......................................... 81
Figure 12 – Test rig for type C appliances for installation in flat roofed buildings ................................................ 82
Figure 13 – Test rig for type C appliances for installation in buildings with tilted roof ......................................... 83
Figure 14 – Test rig for the determination of water losses .................................................................................... 98
Figure C.1 – Type B ........................................................................................................................................... 111
Figure C.2 – Type B ........................................................................................................................................... 111
Figure C.3 – Type C ........................................................................................................................................... 112
Figure C.4 – Type C ........................................................................................................................................... 112
Figure C.5 – Type C ........................................................................................................................................... 113
Figure C.6 – Type C ........................................................................................................................................... 113
Figure C.7 – Type C ........................................................................................................................................... 114
Figure C.8 – Type C ........................................................................................................................................... 114
Figure D.1 – Automatic gas shut off valves in the gas supply line for burners .................................................... 115
Figure D.2 – Automatic gas shut off valves in the gas supply line for permanent or alternating burners ........... 116
Figure J.1 – Maximum permitted recirculation of the combustion products ........................................................ 122
Figure J.2 – Set up for pressure loss test in still air ............................................................................................. 124
Figure J.3 – Set up for wind test .......................................................................................................................... 125
---------------------- Page: 6 ----------------------SIST EN 50465:2009
– 5 – EN 50465:2008
Tables
Table 1 – Mechanical and chemical compositions of carbon and stainless steels ............................................... 32
Table 2 – Minimum requirements for cast iron ...................................................................................................... 33
Table 3 – Parts in aluminium and aluminium alloys .............................................................................................. 33
Table 4 – Parts in copper or copper alloys ............................................................................................................ 33
Table 5 – Minimum thicknesses for rolled parts .................................................................................................... 33
Table 6 – Nominal minimum thicknesses of fuel cell gas heating appliance sections .......................................... 33
Table 7 – Weld joints and welding processes ....................................................................................................... 34
Table 8 – Maximum admissible leakage rates ...................................................................................................... 49
Table 9 – NO classes ........................................................................................................................................... 59
Table 8 – (CO ) concentration of the combustion products, in percent ............................................................... 93
2 NTable 9 – Supplementary markings...................................................................................................................... 101
Table A.1 – Simple categories marketed ............................................................................................................. 106
Table A.1 – Double categories marketed ............................................................................................................ 107
Table A.2 – Normal supply pressures ................................................................................................................. 108
Table A.3 – Gas connections conditions in common use in the various countries ............................................. 109
Table B.1 – Locally distributed gas groups .......................................................................................................... 110
Table H.1 – Category(ies), direct and indirect country(ies) of destination .......................................................... 120
Table H.2 – Example 1: Possibilities for the second gas family .......................................................................... 120
Table H.3 – Example 2: Possibilities for the third gas family ............................................................................... 120
Table I.1 – Conversion of the emission value of NO for second family gases ................................................... 121
Table I.2 – Conversion of the emission value of NO for third family gases ....................................................... 121
Table ZZ.1 – Clauses of this European Standard addressing essential requirements or other provisions of
EC Directives ................................................................................................................................................ 126
---------------------- Page: 7 ----------------------SIST EN 50465:2009
EN 50465:2008 – 6 –
1 Scope
This European Standard applies to the construction, the safety, the functional requirements and the test
methods, as well as the classification and the marking of a fuel cell gas heating appliance, which will be
operated predominantly heat followed, meeting the following boundary conditions:– maximum heat load (gas input): 70 kW
– maximum electrical output: 11 kW.
NOTE Due to the fact, that there are national deviations on the maximum electrical output in Europe, this maximum
electrical output is independent referring the number of connected phases to the public low voltage grid.
– fuel: combustion gas in accordance with EN 437– maximum heating water temperature: 95 °C (under normal operational conditions)
– process pressures in the fuel cell gas appliance:
– heating water: max. 6 bar
– domestic hot water (if installed): max. 10 bar
– device construction: According to the expositions in accordance with CEN/TR 1749, EN 483 or EN 297
(B , B , B , B , C , C , C , C , C , C , C , C , C , C , C , C ) .22 23 32 33 12 13 32 33 42 43 52 53 62 63 82 83
This European Standard applies to type testing only.
This European Standard does not contain the requirements necessary for appliances for producing electrical
energy without thermal energy.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 Pressure governors for gas appliances for inlet pressures up to 200 mbars
EN 125 Flame failure devices
EN 126 Multifunctional controls for gas burning appliances
EN 161 Automatic shut-off valves for gas burners and gas appliances
EN 297 Heating boilers operated with gaseous fuels – Type B + B boilers of nominal heat input
11 11BSnot exceeding 70 kW
EN 298 Automatic gas burner control systems for gas burners and gas burning appliances with or
without fansThe classification used in this European Standard is based on upon the classification of CEN/TR 1749.
---------------------- Page: 8 ----------------------SIST EN 50465:2009
– 7 – EN 50465:2008
EN 437:1993 Test gases, test pressures and categories of appliance, for gas appliances
+ A1:1997EN 483:1999 Gas-fired central heating boilers – Type C boilers of nominal heat input not exceeding 70 kW
+ A2:2001EN 549 Rubber materials for seals and diaphragms for gas appliances and gas equipment
EN 677:1998 Gas fired central heating boilers Specific requirements for condensing boilers with a nominal
heat input not exceeding 70 kWEN 1057 Copper and copper alloys – Seamless, round copper tubes for water and gas in sanitary and
heating applicationsEN 1443 Chimneys – General requirements
CEN/TR 1749 European scheme for the classification of gas appliances according to the method of
evacuation of the products of combustion (types)EN 1856-1 Chimneys – Requirements for metal chimneys – Part 1: System chimney products
EN 1856-2 Chimneys – Requirements for metal chimneys – Part 2: Metal liners and connecting flue
pipesEN 1859 Chimneys – Metal chimneys – Test methods
EN 10029 Hot rolled steel plates 3 mm thick or above; tolerances on dimensions, shape and mass
EN 12067-1 Gas/air ratio controls for gas burners and gas burning appliances – Part 1: Pneumatic types
EN 12067-2 Gas/air ratio controls for gas burners and gas burning appliances – Part 2: Electronic types
EN 13611 Safety and control devices for gas burners and gas-burning appliances – General
requirementsEN 14459 Methods of risk analysis for the use of electronics in systems and control functions for gas
burners and gas burning appliancesEN 50438 Requirements for the connection of micro-generators in parallel with public low-voltage
distribution networksEN 60335-1 Household and similar electric appliances – Safety – Part 1: General requirements
(IEC 60335-1, modified)EN 60335-2-102 Household and similar electrical appliances – Safety – Part 2-102: Particular requirements
for gas, oil and solid-fuel burning appliances having electrical connections (IEC 60335-2-102,
modified)EN 60529 Degrees of protection provided by enclosures (IEC 60529)
EN 60730-2-9 Automatic electrical controls for household and similar use – Part 2-9: Particular
requirements for temperature sensing controls (IEC 60730-2-9, modified)EN 61000-3-2 Electromagnetic compatibility (EMC) – Part 3-2: Limits – Limits for harmonic current
emissions (equipment input current ≤ 16 A per phase) (IEC 61000-3-2)---------------------- Page: 9 ----------------------
SIST EN 50465:2009
EN 50465:2008 – 8 –
EN 61000-3-3 Electromagnetic compatibility (EMC) – Part 3-3: Limits – Limitation of voltage changes,
voltage fluctuations and flicker in public low-voltage supply systems, for equipment with rated
current ≤ 16 A per phase and not subject to conditional connection (IEC 61000-3-3)
EN 61000-6-1 Electromagnetic compatibility (EMC) – Part 6-1: Generic standards – Immunity for residential,
commercial and light-industrial environments (IEC 61000-6-1)EN 61000-6-2 Electromagnetic compatibility (EMC) – Part 6-2: Generic standards – Immunity for industrial
environments (IEC 61000-6-2)EN 61000-6-3 Electromagnetic compatibility (EMC) – Part 6-3: Generic standards – Emission standard for
residential, commercial and light-industrial environments (IEC 61000-6-3)EN 61000-6-4 Electromagnetic compatibility (EMC) – Part 6-4: Generic standards – Emission standard for
industrial environments (IEC 61000-6-4)IEC/TS 62282-1 Fuel cell technologies – Part 1: Terminology
EN 62282-2:2004 Fuel cell technologies – Part 2: Fuel cell modules (IEC 62282-2:2004)
EN ISO 3166-1 Codes for the representation of names of countri...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.