EN 203-1:2021
(Main)Gas heated catering equipment - Part 1: General safety requirements
Gas heated catering equipment - Part 1: General safety requirements
This document specifies the requirements and test methods for the construction and operating characteristics relating to safety and rational use of energy for gas heated commercial catering and bakery appliances intended to be used indoor.
This document applies to all professional cooking and bakery appliances using gas for preparing food and drink.
Only appliances of types A1, A2, A3, B1 and B2, as defined in Clause 4, are considered in this document.
Only the net calorific value (Hi) and net Wobbe index (Wi) are used.
The requirements concerning specific types of appliances are given in the relevant Part 2.
Annex C (informative) lists the main types of equipment covered by the scope of this document.
Appliances covered by this document are not intended to use gases containing carbon monoxide or other toxic components.
NOTE For appliances intended to be used in vehicles, in trailers or on-board ships, additional requirements can be necessary.
Großküchengeräte für gasförmige Brennstoffe - Teil 1: Allgemeine Sicherheitsanforderungen
Dieses Dokument legt die Anforderungen und Prüfverfahren für die Bauweise und Bedienung bezüglich Sicherheit, sowie die rationelle Energienutzung für Großküchen- und Bäckereigeräte für gasförmige Brennstoffe fest, die für die Verwendung in Innenräumen bestimmt sind.
Dieses Dokument gilt für alle gewerblichen Koch- und Backgeräte, die Gas für die Zubereitung von Speisen und Getränken verwenden.
Nur Geräte der Arten A1, A2, A3, B1 und B2, wie in Abschnitt 4 definiert, werden in diesem Dokument berücksichtigt.
Es werden nur der Heizwert (Hi) und der untere Wobbeindex (Wi) verwendet.
Die Anforderungen an bestimmte Gerätetypen sind in dem entsprechenden Teil 2 aufgeführt.
Im informativen Anhang C sind die wesentlichen Gerätetypen des Anwendungsbereiches dieses Dokuments aufgelistet.
Geräte, die unter dieses Dokument fallen, sind nicht für die Verwendung von Gasen vorgesehen, die Kohlenmonoxid oder andere toxische Komponenten enthalten.
ANMERKUNG Geräte, die für die Nutzung in Fahrzeugen, in Anhängern oder an Bord von Schiffen gedacht sind, können zusätzliche Anforderungen notwendig sein.
Appareils de cuisine professionnelle utilisant les combustibles gazeux - Partie 1 : Exigences générales de sécurité
Le présente document spécifie les exigences et les méthodes d'essai pour la construction et caractéristiques de fonctionnement relatives à la sécurité et à l'utilisation rationnelle de l'énergie des appareils de cuisson professionnelle et de boulangerie artisanale utilisant les combustibles gazeux destinés à être utilisés à l’intérieur.
Le présent document s’applique à tous les appareils de cuisson professionnelle et de boulangerie artisanale utilisant les combustibles gazeux destinés à la préparation et à la cuisson des aliments et des boissons.
Seuls les appareils des types A1, A2, A3, B1 et B2, comme définis à l’Article 4, sont étudiés dans le présent document.
Seuls le pouvoir calorifique inférieur (Hi) et l’indice de Wobbe inférieur (Wi) sont utilisés.
Les exigences spécifiques sont données dans la Partie 2.
L’Annexe C, informative, donne une liste des principaux types d’appareils entrant dans le champ d’application du présent document.
Les appareils couverts par cette norme ne sont pas destinés à utiliser des gaz contenant du monoxyde de carbone ou d'autres composants toxiques.
NOTE Pour les appareils destinés à être utilisés dans des véhicules, dans des wagons ou à bord de navires, des exigences supplémentaires peuvent être nécessaires.
Plinske naprave za gostinstvo - 1. del: Splošna varnostna pravila
Ta evropski standard določa splošne zahteve, konstrukcijske značilnosti in značilnosti delovanja v povezavi z varnostjo, racionalno rabo energije, označevanje in povezane preskusne metode za komercialne plinske naprave za gostinstvo in peko, namenjene za uporabo v zaprtih prostorih.
Posebne zahteve so obravnavane v 2. delu.
Ta evropski standard obravnava samo naprave tipov A1, A2, A3, B1 in B2 iz točke 4.
Ta evropski standard se uporablja za vse profesionalne aparate za gostinstvo in peko, ki za pripravo hrane in pijače uporabljajo plin.
Uporabljata se samo neto kalorična vrednost (Hi) in Wobbejev indeks (Wi).
V informativnem dodatku C so navedeni glavni tipi naprav, za katere se začne uporabljati ta evropski standard.
OPOMBA: Za aparate, ki so namenjeni za uporabo v vozilih, potniških vagonih ali na krovu ladij, so morda potrebne dodatne zahteve.
General Information
Relations
Frequently Asked Questions
EN 203-1:2021 is a standard published by the European Committee for Standardization (CEN). Its full title is "Gas heated catering equipment - Part 1: General safety requirements". This standard covers: This document specifies the requirements and test methods for the construction and operating characteristics relating to safety and rational use of energy for gas heated commercial catering and bakery appliances intended to be used indoor. This document applies to all professional cooking and bakery appliances using gas for preparing food and drink. Only appliances of types A1, A2, A3, B1 and B2, as defined in Clause 4, are considered in this document. Only the net calorific value (Hi) and net Wobbe index (Wi) are used. The requirements concerning specific types of appliances are given in the relevant Part 2. Annex C (informative) lists the main types of equipment covered by the scope of this document. Appliances covered by this document are not intended to use gases containing carbon monoxide or other toxic components. NOTE For appliances intended to be used in vehicles, in trailers or on-board ships, additional requirements can be necessary.
This document specifies the requirements and test methods for the construction and operating characteristics relating to safety and rational use of energy for gas heated commercial catering and bakery appliances intended to be used indoor. This document applies to all professional cooking and bakery appliances using gas for preparing food and drink. Only appliances of types A1, A2, A3, B1 and B2, as defined in Clause 4, are considered in this document. Only the net calorific value (Hi) and net Wobbe index (Wi) are used. The requirements concerning specific types of appliances are given in the relevant Part 2. Annex C (informative) lists the main types of equipment covered by the scope of this document. Appliances covered by this document are not intended to use gases containing carbon monoxide or other toxic components. NOTE For appliances intended to be used in vehicles, in trailers or on-board ships, additional requirements can be necessary.
EN 203-1:2021 is classified under the following ICS (International Classification for Standards) categories: 97.040.20 - Cooking ranges, working tables, ovens and similar appliances. The ICS classification helps identify the subject area and facilitates finding related standards.
EN 203-1:2021 has the following relationships with other standards: It is inter standard links to EN 203-1:2014, EN 203-1:2014/AC:2016, EN 203-1:2021+A1:2023. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
EN 203-1:2021 is associated with the following European legislation: EU Directives/Regulations: 2016/426; Standardization Mandates: M/BC/CEN/89/6. When a standard is cited in the Official Journal of the European Union, products manufactured in conformity with it benefit from a presumption of conformity with the essential requirements of the corresponding EU directive or regulation.
You can purchase EN 203-1:2021 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of CEN standards.
Standards Content (Sample)
SLOVENSKI STANDARD
01-april-2022
Nadomešča:
SIST EN 203-1:2014
SIST EN 203-1:2014/AC:2016
Plinske naprave za gostinstvo - 1. del: Splošna varnostna pravila
Gas heated catering equipment - Part 1: General safety rules
Großküchengeräte für gasförmige Brennstoffe - Teil 1: Allgemeine
Sicherheitsanforderungen
Appareils de cuisine professionnelle utilisant les combustibles gazeux - Partie 1: Règles
générales de sécurité
Ta slovenski standard je istoveten z: EN 203-1:2021
ICS:
97.040.20 Štedilniki, delovni pulti, Cooking ranges, working
pečice in podobni aparati tables, ovens and similar
appliances
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN 203-1
EUROPEAN STANDARD
NORME EUROPÉENNE
December 2021
EUROPÄISCHE NORM
ICS 97.040.20 Supersedes EN 203-1:2014
English Version
Gas heated catering equipment - Part 1: General safety
requirements
Appareils de cuisine professionnelle utilisant les Großküchengeräte für gasförmige Brennstoffe - Teil 1:
combustibles gazeux - Partie 1 : Exigences générales de Allgemeine Sicherheitsanforderungen
sécurité
This European Standard was approved by CEN on 3 October 2021.
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
© 2021 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 203-1:2021 E
worldwide for CEN national Members.
Contents Page
European foreword . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 7
3.1 Terminology referring to gases and pressures . 7
3.2 Terminology referring to appliance design . 8
3.3 Terminology referring to appliance operation .13
4 Classification .15
5 Constructional requirements .16
5.1 General .16
5.2 Particular requirements for components in the gas circuit .22
5.3 Particular requirements .27
6 Performance requirements .28
6.1 Soundness .28
6.2 Obtaining the gas rate.29
6.3 Safety of operation .30
6.4 Influence of burners on each other .33
6.5 Auxiliary equipment .33
6.6 Air proving device .34
6.7 Combustion .35
6.8 Auxiliary energy .36
6.9 Rational use of energy .36
6.10 Operating requirements - Temperature of the LPG cylinder and its compartment .36
7 Test conditions .37
7.1 General .37
7.2 Soundness .40
7.3 Obtaining gas rates .41
7.4 Operational safety .44
7.5 Auxiliary equipment .50
7.6 Combustion .51
7.7 Air-proving device .54
7.8 Special tests .56
7.9 Test method - Overheating of the LPG cylinder and its compartment .56
7.10 Rational use of energy .57
8 Marking and instructions .57
8.1 General requirements for marking and instructions .57
8.2 Marking on the appliance .57
8.3 Instructions for installation and adjustment .58
8.4 Instructions for use and maintenance .60
Annex A (informative) National situations .68
Annex B (normative) Use of symbols on appliances and packaging .71
Annex C (informative) Trilingual list of appliances in the scope of EN 203-1 and
corresponding Part 2 .73
Annex D (informative) Configuration of the gas circuit . 75
Annex E (normative) Material in contact with food . 77
Annex ZA (informative) Relationship between this European Standard and the essential
requirements of Regulation (EU) 2016/426 aimed to be covered . 80
Bibliography . 83
European foreword
This document (EN 203-1:2021) has been prepared by Technical Committee CEN/TC 106 “Large kitchen
appliances using gaseous fuels”, 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 June 2022, and conflicting national standards shall be
withdrawn at the latest by June 2022.
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 203-1:2014.
This document has been prepared under a Standardization Request given to CEN by the European
Commission and the European Free Trade Association, and supports essential requirements of
EU Directive(s) / Regulation(s).
For relationship with EU Directive(s) / Regulation(s), see informative Annex ZA, which is an integral part
of this document.
This document constitutes Part 1 of EN 203, Gas heated catering equipment. Particular requirements are
given in the relevant Part 2: Specific requirements.
The main changes compared to the previous edition are the following:
— Update of the scope to further clarify that appliances are to be used indoors;
— Alignment with the Gas Appliances Regulation and the Vademecum on European standardization in
support of Union legislation and policies based on Standardization Request/Mandate (under
drafting);
— Introduction of reference to EN 1672-2:2005+A1:2009 for the verification of materials and parts in
contact with food and other hygiene aspects as consequence of the withdrawal of EN 203-3:2009;
— Revision of the text in Clause 5 for clarification of its contents and addition of specific compliance
criteria when missing;
— Addition of the adjustement of the sequential function control (7.6.2.1);
— Addition of the accuracy of measuring instruments (7.1.8).
Any feedback and questions on this document should be directed to the users’ national standards body.
A complete listing of these bodies can be found on the CEN website.
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 and operating
characteristics relating to safety and rational use of energy for gas heated commercial catering and
bakery appliances intended to be used indoor.
This document applies to all professional cooking and bakery appliances using gas for preparing food and
drink.
Only appliances of types A , A , A , B and B , as defined in Clause 4, are considered in this document.
1 2 3 1 2
Only the net calorific value (Hi) and net Wobbe index (Wi) are used.
The requirements concerning specific types of appliances are given in the relevant Part 2.
Annex C (informative) lists the main types of equipment covered by the scope of this document.
Appliances covered by this document are not intended to use gases containing carbon monoxide or other
toxic components.
NOTE For appliances intended to be used in vehicles, in trailers or on-board ships, additional requirements
can be necessary.
2 Normative references
The following documents are referred to in the text in such a way that some or all 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 88-2:2007, Pressure regulators and associated safety devices for gas appliances - Part 2: Pressure
regulators for inlet pressures above 500 mbar up to and including 5 bar
EN 125:2010+A1:2015, Flame supervision devices for gas burning appliances - Thermoelectric flame
supervision devices
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 437:2021, Test gases - Test pressures - Appliance categories
EN 549:2019, Rubber materials for seals and diaphragms for gas appliances and gas equipment
EN 751-1:1996, Sealing materials for metallic threaded joints in contact with 1st, 2nd and 3rd family gases
and hot water - Part 1: Anaerobic jointing compounds
EN 751-2:1996, Sealing materials for metallic threaded joints in contact with 1st, 2nd and 3rd family gases
and hot water - Part 2: Non-hardening jointing compounds
EN 1106:2010, Manually operated taps for gas burning appliances
EN 1672-2:2005+A1:2009, Food processing machinery – Basic concepts – Part 2: Hygiene requirements
EN 1717:2000, Protection against pollution of potable water in water installations and general
requirements of devices to prevent pollution by backflow
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 13611:2019, Safety and control devices for burners and appliances burning gaseous and/or liquid fuels
- General requirements
EN 16340:2014, Safety and control devices for burners and appliances burning gaseous or liquid fuels -
Combustion product sensing devices
EN 60335-1:2012 , Household and similar electrical appliances - Safety - Part 1: General requirements (IEC
60335-1:2010, modified)
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 connections (IEC 60335-2-
102:2004, modified)
EN 60730-1:2016 , Automatic electrical controls for household and similar use - Part 1: General
requirements (IEC 60730-1:2013, modified)
EN IEC 60730-2-9:2019 , Automatic electrical controls - Particular requirements for temperature sensing
control (IEC 60730-2-9:2015)
EN 61770:2009 , Electric appliances connected to the water mains - Avoidance of backsiphonage and
failure of hose-sets (IEC 61770:2008)
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)
As impacted by EN 60335-1:2012/AC:2014, EN 60335-1:2012/A11:2014, EN 60335-1:2012/A13:2017,
EN 60335-1:2012/A1:2019, EN 60335-1:2012/A2:2019 and EN 60335-1:2012/A14:2019.
As impacted by EN 60730-1:2016/A1:2019.
As impacted by EN IEC 60730-2-9:2019/A1:2019 and EN IEC 60730-2-9:2019/A2:2020.
As impacted by EN 61770:2009/AC:2011, EN 61770:2009/A11:2018 and EN 61770:2009/A1:2019.
3 Terms and definitions
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:
— ISO Online browsing platform: available at https://www.iso.org/obp
— IEC Electropedia: available at https://www.electropedia.org/
3.1 Terminology referring to gases and pressures
3.1.1
gas family
group of gaseous fuels with similar burning behaviour linked together by a range of Wobbe indices
[SOURCE: EN 437:2021, 3.18]
3.1.2
gas group
specified range of Wobbe index within that of the family concerned
Note 1 to entry: See EN 437:2021, Table 1.
Note 2 to entry: This range is determined on the general principle that appliances utilizing this gas group would
operate safely when burning all gases within this range without adjustment.
Note 3 to entry: Adjustment of the appliance may be permitted in accordance with the special national or local
conditions that apply in some countries.
[SOURCE: EN 437:2021, 3.19]
3.1.3
appliance category
means of identifying the gas families and/or gas groups for which a gas appliance is designed to operate
safely and to the desired performance level
[SOURCE: EN 437:2021, 3.20]
3.1.4
gas supply pressure
p
difference between the pressure measured at the inlet connection of the appliance, with the appliance in
operation, and atmospheric pressure
Note 1 to entry: Gas supply pressure is expressed in millibars (mbar).
3.1.5
relative density
d
ratio of the masses of equal volumes of dry gas and dry air under the same conditions of temperature and
pressure: 15 °C or 0 °C and 1 013,25 mbar
3.1.6
calorific value
quantity of heat produced by the complete combustion, of a unit volume or mass of dry gas, the
constituents of the combustible mixture being taken at reference conditions of 15 °C, 1 013,25 mbar and
the products of combustion being brought back to the same conditions
Note 1 to entry: A distinction is made between:
— the gross calorific value H : the water produced by combustion is assumed to be condensed;
s
— the net calorific value H : the water produced by combustion is assumed to be in the vapour state.
i
Note 2 to entry: The calorific value is expressed:
— either in megajoules per cubic metre (MJ/m ) of dry gas under the reference conditions of 15 °C, 1 013,25 mbar;
— or in megajoules per kilogram (MJ/kg) of dry gas.
3.1.7
Wobbe index
gross Wobbe index Ws: net Wobbe index Wi ratio of the calorific value of a dry gas per unit volume and
the square root of its relative density under the reference conditions of 15 °C, 1 013,25 mbar
Note 1 to entry: The Wobbe index is said to be gross or net according to whether the calorific value used is the
gross or net calorific value.
Note 2 to entry: The Wobbe indices are expressed:
— either in megajoules per cubic metre (MJ/m ) of dry gas under the reference conditions of 15 °C, 1 013,25 mbar;
— or in megajoules per kilogram (MJ/kg) of dry gas.
3.2 Terminology referring to appliance design
3.2.1 Terminology referring to the gas circuit
3.2.1.1
gas circuit
part of an appliance, between the gas inlet connection and the burner(s), which conveys or contains the
gas
3.2.1.2
inlet connection
part of the appliance which is intended to be connected to the gas supply
3.2.1.3
mechanical joint (or mechanical means of obtaining soundness)
assembly of several parts, generally metallic, which achieves soundness by use of mechanical means such
as metal-to-metal joints, toroidal sealing rings (O rings) or flat joints
3.2.1.4
restrictor
device with one or more orifices that is placed in the path of the gas flow between the appliance inlet
connection and the burner to create a pressure drop, and thus reduces the gas pressure at the burner to
a predetermined value for a given supply pressure and rate
3.2.1.5
gas rate adjuster
component which allows the gas input to each burner to be set at a predetermined value according to
supply conditions by continuous (screw adjuster) or discontinuous (changing restrictors) action
Note 1 to entry: The operation of setting this device is known as “setting the gas rate”.
3.2.1.6
pressure regulator
device which maintains a constant downstream pressure within a fixed range, independent of the
upstream pressure and/or the gas rate
Note 1 to entry: Only appliances with pressure regulator are considered regulated appliances.
3.2.1.7
gas rate control
tap or equivalent component which allows the gas supply to one or more burners to be opened or closed,
and possibly, the burner or burners to be adjusted to a gas input lower than the nominal heat input
3.2.1.8
touch control
indirect manual burner control resulting from finger contact or light touch, with or without movement
on the contact surface
3.2.1.9
indirect control
control that commands a shut-off or gas regulating device via some auxiliary energy (e.g. electric,
pneumatic, etc.)
3.2.1.10
primary air
air entrained in the burner by gas flow and which is mixed upstream of the burner
3.2.1.11
primary aeration adjuster
device which allows the primary air rate to be set at a desired value, according to the supply conditions
Note 1 to entry: The operation of changing the setting of the device is called “adjusting the primary aeration”.
3.2.1.12
injector
component which admits gas into a burner
3.2.1.13
heat bearing fluid
intermediary fluid that indirectly conveys the heat from a burner to the food or cooking container
3.2.2 Terminology referring to the burner
3.2.2.1
main burner
burner which performs the heating function of the appliance and is often called simply “burner”
3.2.2.2
auxiliary burner
burner which allows, by means of an ignition burner or pilot, ignition of a main burner
3.2.2.3
ignition burner or pilot
burner intended to ignite the main burner or at first an auxiliary burner
Note 1 to entry: If a burner operates independently of the main burners, it is called “pilot”.
3.2.2.4
alternating ignition burner
ignition burner which goes off as soon as the main burner is ignited and is ignited from the main burner
just before the main burner is extinguished
3.2.2.5
permanent ignition burner
ignition burner which remains ignited even when the main burner is in use
3.2.3 Terminology referring to the combustion circuit
3.2.3.1
combustion circuit
circuit including the air supply duct, if it exists, the combustion chamber, the heat exchanger and the
combustion products evacuation duct, if it exists
3.2.3.2
combustion products circuit
circuit including the combustion chamber, the heat exchanger and the combustion products evacuation
duct if it exists
3.2.3.3
combustion chamber
enclosure in which the air/gas mixture burns
3.2.3.4
flue outlet
part of an appliance intended to be connected to a combustion products evacuation duct
3.2.3.5
draught diverter
device placed in the combustion products circuit of type B appliances, which is intended to reduce the
influence of the flue pull and down draught on the burner performance and combustion
3.2.3.6
combustion products outlet or flueway extension
part of an appliance not connected to a flue, through which products of combustion are discharged into a
room
3.2.3.7
combustion products discharge safety device
device that at least shuts off the main burner when there is an unacceptable spillage of combustion
products at the draught diverter of type B appliances
11BS
3.2.3.8
purging
act of forcing air into the combustion circuit to expel any remaining gas/air mixture or products of
combustion
Note 1 to entry: Pre-purging is a purging that takes place between the starting demand and the activation of the
ignition device.
3.2.3.9
control device for aeration or evacuation of combustion products
device which causes shutdown in the event of abnormal aeration or combustion products evacuation
conditions
3.2.3.10
gas/air ratio device
device which automatically adjusts the combustion air flow to the gas flow and vice versa
3.2.4 Terminology referring to the auxiliary equipment
3.2.4.1
auxiliary equipment
all the devices of an appliance which act directly or indirectly on the gas rate (e.g. gas rate control, flame
supervision device, governor, thermostat, etc.)
3.2.4.2
ignition device
means used to light gas admitted to the ignition burner, auxiliary burner or main burner, which may or
may not be fixed to the appliance
3.2.4.3
flame supervision device
device which, on the extinguishment of the supervised flame, shuts off the gas supply
Note 1 to entry: It is described as having “simple control” if it shuts off the gas supply to the main burner only.
Note 2 to entry: It is described as having “complete control” if it shuts off the gas supply to the main burner and
to the ignition burner.
3.2.4.3.1
ignition time
time interval between the ignition of the supervised flame and the moment when the force thus produced
is sufficient to keep the valve open
3.2.4.3.2
ignition safety time
TSA
time that elapses between the input to open the gas supply to the burner and the gas supply being shut
off in the event no flame has been detected
3.2.4.3.3
flame detector
part of the flame supervision device sensing element on which the supervised flame acts directly and
transforms the flame effect into a signal which is transmitted directly or indirectly to a shut off valve
3.2.4.3.4
extinction safety time
TSE
time that elapses between extinguishment of the supervised flame and the input to shut off the gas supply
to the burner
3.2.4.3.5
closing time
time interval between the interruption of the auxiliary energy or the voltage and the achievement of the
closed position
3.2.4.3.6
ignition rate
Q
ign
average heat input during the ignition safety time, expressed as a percentage of the nominal heat input
3.2.4.3.7
spark restoration
automatic process by which, following flame failure, the ignition device is switched on again without total
interruption of the gas supply
3.2.4.3.8
recycling
automatic process by which, after loss of flame during operation, the gas supply is interrupted, and the
full start procedure is re-initiated automatically
3.2.4.3.9
non-volatile lockout of the appliance
safety shutdown such that a restart can only be accomplished by manual reset and by no other means
3.2.4.3.10
volatile lock-out of the appliance
safety shutdown such that a restart can only be accomplished by either the manual reset, or an
interruption of the electrical supply and its subsequent restoration
3.2.4.4
temperature regulator (thermostat)
device which controls the operation of the appliance (by on/off, on/low or modulating control),
maintaining a predetermined temperature within the given limits of operation
3.2.4.5
overheat limit device
manually reset device which ensures that temperature is limited to a predetermined safety value
Note 1 to entry: Overheat limit device is not a regulating device.
3.2.4.6
control knob
component which is moved by hand and operates an appliance control device (e.g. tap, thermostat, etc.)
3.2.5
functional surface
part of the appliance which is hot for the appliance to fulfil its function
3.2.6
marking
permanent indication on the appliance
3.2.7
removable part
part that can be removed or opened without the aid of a tool, a part that is removed or opened in
accordance with the instructions for use, even if a tool is needed for removal
3.3 Terminology referring to appliance operation
3.3.1 Terminology referring to gas rates
3.3.1.1
heat input
Q
quantity of energy used in unit time corresponding to the volumetric or mass flow rates, the calorific
value to be considered in this document being the net calorific value
Note 1 to entry: Heat input is expressed in kilowatts (kW).
3.3.1.2
nominal heat input
Q
n
value of the heat input declared by the manufacturer
Note 1 to entry: Nominal heat input is expressed in kilowatts (kW).
3.3.1.3
mass flow rate
M
mass of gas consumed by the appliance divided by the operating time
Note 1 to entry: The mass flow rate is expressed in kilograms per hour (kg/h) or grams per hour (g/h).
3.3.1.4
volumetric flow rate
V
volume of the dry gas consumed by the appliance divided by the operating time, the gas being taken under
reference conditions of 15 °C, 1 013,25 mbar
Note 1 to entry: Volumetric flow rate is expressed in cubic metres per hour (m /h), litres per minute (l/m), cubic
3 3
decimetres per hour (dm /h) or cubic decimetres per second (dm /s).
3.3.2 Terminology referring to gas combustion
3.3.2.1
combustion
oxidation phenomena of combustible gases by the oxygen of air, taking place throughout the burners
Note 1 to entry: The combustion may be:
— complete; in this case only traces of combustible constituents (hydrogen, carbon monoxide, carbon etc.) remain
in the products of combustion; or
— incomplete; in this case at least one combustible constituent is present in significant proportions in the products
of combustion.
The amount of carbon monoxide (CO) in the dry air-free products of combustion is used as the criterion to
distinguish between complete and incomplete combustion.
The maximum CO limits according to the circumstances of the test are defined in 6.7. In each case, combustion is
regarded as complete (or hygienic) if the CO concentration is below the maximum allowed; if not, it is regarded as
incomplete (or non-hygienic).
3.3.2.2
aerated flame
flame produced by the combustion of gas previously mixed with air
3.3.2.3
non-aerated flame
flame produced by the combustion of gas which comes into contact with air at the moment of its
combustion
3.3.2.4
flame stability
condition of the flame firmly attached to the burner ports or the contact area provided by the design, with
no risk of flame lift or light back
3.3.2.5
flame lift
phenomenon characterized by the total or partial lifting of the base of the flame from the burner port or
the flame contact area provided by the design
Note 1 to entry: Flame lift may cause the extinguishment of the flame.
3.3.2.6
light back
phenomenon characterized by the return of the flame into the body of the burner
3.3.2.7
light back at the injector
phenomenon characterized by the ignition of the gas at the injector, either as a result of light back or by
the propagation of a flame around the outside of the burner
3.3.2.8
sooting
phenomenon appearing with incomplete combustion and characterized by the deposit of soot on the
surfaces or parts of the appliance in contact with the products of combustion or with the flame
3.3.2.9
air ratio
ratio of the air rate entrained at the burner to the minimum air rate necessary for complete combustion
3.3.3
putting an adjuster or control device out of service
procedure by which a control (of temperature, pressure, etc.) is put out of service and sealed in this
position
Note 1 to entry: The appliance then functions as if this device had been removed.
3.3.4
sealing an adjuster
procedure by which after setting an adjuster, it is immobilized by a mean such that any attempt to alter
the adjustment setting is visible
Note 1 to entry: A factory sealed pre-set adjuster is considered to be non-existent.
Note 2 to entry: A pressure regulator is considered to be non-existent if it has been factory sealed in the fully
opened position.
3.3.5
sequential operation
succession of temporized sequences, pre-established or adjustable, allowing the burner to operate by
intermittent cycles
3.3.6
compensation tube
pipe that is used to convey pressure from part of an installation to the signal chamber
3.4
qualified person
a person with relevant education, training, knowledge and experience to enable him or her to perceive
risks and to avoid danger which is related to gas appliances
3.5
rational use of energy index
RUI
index indicating the value obtained for the rational use of energy
4 Classification
Appliances are classified as follows:
a) into categories defined according to the nature of the gases and pressures for which they are
designed. The definitions of these categories are given in EN 437:2021.
NOTE For the national situations, see Annex A, A.3.
b) into types, according to the method of evacuation of products of combustion and admission of
combustion air.
— Type A
An appliance not intended for connection to a flue or to a device for evacuating the products of
combustion to the outside of the room in which the appliance is installed.
These appliances are installed with sufficient ventilation to prevent the formation of unacceptable
concentrations of substances harmful to health in the room in which they are installed.
Type A : Appliance without a fan.
Type A : Appliance with a fan downstream of the combustion chamber/heat exchanger.
Type A : Aappliance with a fan upstream of the combustion chamber/heat exchanger.
— Type B
An appliance intended to be connected to a flue that evacuates the products of combustion to the
outside of the room containing the appliance. The combustion air is drawn directly from the room.
Type B : A type B appliance incorporating a draught diverter in the combustion products
circuit.
Type B : A natural draught type B appliance.
11 1
Type B : A type B appliance designed for a natural draught flue incorporating a fan
12 1
downstream of the combustion chamber / heat exchanger and upstream of the
draught diverter.
Type B : A type B appliance designed for a natural draught flue incorporating a fan
13 1
upstream of the combustion chamber / heat exchanger.
Type B : A type B appliance having an integral fan downstream of both the combustion
14 1
chamber / heat exchanger and the draught diverter.
Type B : A type B appliance without a draught diverter.
Type B : A type B appliance incorporating a fan downstream of the combustion chamber
22 2
/ heat exchanger.
Type B : A type B appliance incorporating a fan upstream of the combustion chamber /
23 2
heat exchanger.
A supplementary classification for type B appliances is used to clarify the identification of such
appliances when fitted with particular safety devices. The subscript letters “BS” (blocked safety)
refers to a combustion products discharge safety device, which reacts to blockage or restriction of
the flue system.
EXAMPLE Type B11BS: A type B11 appliance fitted with a combustion products discharge safety device.
A type B appliance intended to operate with a pressurized flue duct shall be identified by an extra
subscript “P”. This subscript “P” is only used when installation on a flue specified by the instructions
results in the flue operating at a positive pressure.
5 Constructional requirements
5.1 General
5.1.1 Conversion to different gases
5.1.1.1 General
The only acceptable operations for converting from the gas of one group or family and/or for adapting to
the different supply pressures of a gas are indicated below for each category.
5.1.1.2 Category I
5.1.1.2.1 Category of appliances designed for use with gases of a single family or of a single group
The following adjustments are permitted:
, I , I , I +, I : no adjustment to the appliance shall be made;
a) categories I2H 2L 2E 2E 3B/P
b) category I +: change of injectors or restrictors can be made but only to convert from one pressure
couple to another (e.g. 28-30/37 mbar to/from 50/67 mbar). Adjustment of the primary aeration to
convert from one pressure couple to another or to convert from one pressure couple to another
within the same pressure couple can be made;
c) category I : for a change of pressure, only a change of injectors, adjustment of gas rates and
3P
adjustment of the primary aeration can be made.
5.1.1.3 Category II
5.1.1.3.1 Categories of appliance designed for use with first and second family gases
The following adjustments are permitted for converting from a first family gas to a second family gas or
vice versa:
a) change of injectors or restrictors;
b) adjustment of reduced gas rate;
c) adjustment of gas rate;
d) adjustment of primary aeration;
e) change of complete pilots or some of their parts;
f) adjustment of the pressure regulator downstream pressure if it exists or putting the regulator out of
service in accordance with 5.2.3.4;
g) putting the gas rate adjuster out of service.
5.1.1.3.2 Categories of appliance designed for use with second and third family gases
The following adjustments or component changes are permitted for converting from a second family gas
to a third family gas or vice versa or, within the third family, from converting from one butane/propane
pressure couple to another:
a) change of injectors or restrictors;
b) adjustment of reduced gas rate;
c) adjustment of primary aeration;
d) adjustment of the pressure regulator downstream pressure or putting the regulator out of service.
For third family gases, when converting from one gas to another within a pressure couple, only
adjustment of primary aeration is permitted.
5.1.1.4 Category III
5.1.1.4.1 Categories of appliances designed for use with first, second and gas family
The following adjustments or component changes are permitted for converting from a gas of one family
to a gas of another family, or from converting from one butane/propane pressure couple to another:
a) change of injectors or restrictors;
b) adjustment of reduced gas rate;
c) adjustment of the gas rate;
d) adjustment of primary aeration;
e) change of complete pilots or some of their parts;
f) adjustment of pressure downstream of the pressure regulator, or putting the regulator out of service;
g) putting the gas rate adjuster out of service.
For third family gases, when converting from one gas to another within a pressure couple, adjustment of
primary aeration only is permitted.
5.1.2 Materials and methods of construction
The quality and thickness of the materials used in the construction of the appliance shall be such that the
constructional and operational characteristics are not altered during normal operation.
All parts of the appliance shall not show any signs of mechanical, chemical and thermal distorsion and
any corrosion impairing the safety.
Compliance is checked after having subjected the appliance to all applicable tests specified in 7.
Sealing materials for metallic threaded joints in gas circuit shall be in accordance with EN 751-1:1996
(for anaerobic jointing compounds) or EN 751-2:1996 (for non-hardening jointing compounds) for the
threads in compliance with EN 10226-1:2004 (Threaded joints using taper external threads and taper
internal threads) and EN 10226-2:2005 (Threaded joints using taper external threads and parallel
internal threads).
Elastomeric material shall comply with the requirements given for temperature class E1 or E2 and
hardness class H2 or H3 as defined in EN 549:2019.
Materials containing asbestos shall not be used in the construction of the appliance.
The gas circuit shall consist of metallic parts. Zinc alloys may only be used in contact with gas if they
comply with EN 13611:2019, 6.3.3.
Sharp borders and edges, which could give rise to injury, shall be avoided.
If the appliance is fitted with wheels or castors, two of them at least shall be lockable and accessible.
5.1.3 Use, cleaning and maintenance
Parts which are required to be removed during maintenance shall be designed or marked so that they
can be re-assembled easily and safely, in the correct position and without the risk of mistake.
The user shall have complete safe access to every control knob, button, etc., necessary for the use of the
appliance, after opening a door if necessary, but without having to remove any part of the enclosure.
It shall not be possible to remove the protective covers of movable parts without the aid of a tool, if they
are not fitted with an electrical interlock which cuts off the supply to motorized parts.
5.1.4 Gas connections
The connection point shall be easily accessible and allow free range of movement of tightening tools.
The inlet connections shall have a thread which conforms to EN ISO 228-1:2003 or to EN 10226-1:2004
and EN 10226-2:2005, or shall have a compression fitting. In the first case, the end of the inlet connection
shall be sufficiently flat to allow the use of a sealing device.
The pipe carrying the inlet connections shall be fixed to the appliance body in a rigid way.
For an appliance burning third family gases only, the connection may also be made by a conical joint in
compliance with EN 10226-1:2004 (Threaded joints using taper external threads and taper internal
threads) and EN 10226-2:2005 (Threaded joints using taper external threads and parallel internal
threads) or by a flat joint in compliance with EN ISO 228-1:2003.
NOTE The types of connection used in various countries are given in Annex A, Table A.1.
5.1.5 Soundness
5.1.5.1 Soundness of the gas circuit
5.1.5.1.1 General
Sealing compounds shall be suitable for contact with the gas and for the mechanical and thermal
conditions to which they are subjected.
Holes for screws, studs, etc., intended for the assembly of components other than those carrying gas shall
not open into gas ways.
Internal pipework to movable parts of the appliance which are subject to strain by mechanical movement
shall meet the requirements of the tests described in 7.2.1 to ensure their soundness.
5.1.5.1.2 Assemblies designed to be dismantled
The soundness of parts and assemblies placed in the gas line and likely to be dismantled for
routine maintenance, when the appliance is installed as in normal use, shall be achieved by means of
mechanic
...
기사 제목: EN 203-1:2021 - 가스 난방 상업용 조리 기기 - 파트 1: 일반적인 안전 요구 사항 기사 내용: 이 문서는 실내에서 사용되는 가스 난방 상업용 조리 및 베이커리 기기의 안전 및 합리적인 에너지 사용과 관련된 건설 및 운영 특성에 대한 요구 사항과 시험 방법을 명시합니다. 이 문서는 음식과 음료를 준비하기 위해 가스를 사용하는 모든 전문적인 조리 및 베이커리 기기에 적용됩니다. 이 문서는 4조에서 정의된 A1, A2, A3, B1 및 B2 유형의 기기만을 고려합니다. 순 가열량(Hi) 및 순 워베 지수(Wi)만 사용됩니다. 특정 유형의 기기에 대한 요구 사항은 해당 파트 2에 제시됩니다. 부록 C(정보제공)에는 이 문서의 범위에 포함된 주요 장비 유형이 나열되어 있습니다. 이 문서에 해당되는 기기는 일산화탄소 또는 기타 유독성 성분이 포함된 가스를 사용할 목적으로 하지 않습니다. 참고: 차량, 트레일러 또는 선박 내에서 사용하기 위한 기기의 경우, 추가 요구 사항이 필요할 수 있습니다.
The article discusses the EN 203-1:2021 standard, which outlines general safety requirements for gas heated catering equipment. The document specifies construction and operating characteristics for appliances used in indoor commercial catering and bakery settings. It applies to gas-powered cooking and bakery appliances of types A1, A2, A3, B1, and B2, as defined in Clause 4. The requirements for specific appliance types are detailed in relevant Part 2. Annex C provides a list of equipment covered by the standard. It is important to note that these appliances should not use gases containing carbon monoxide or other toxic components. Additional requirements may be necessary for appliances used in vehicles, trailers, or on-board ships.
記事のタイトル：EN 203-1:2021 - ガスで加熱される業務用調理機器-パート1：一般的な安全要件 記事の内容：この文書は、屋内で使用されるガスで加熱される商業用調理およびベーカリー機器の安全性および合理的なエネルギー使用に関連する建設および操作特性の要件とテスト方法を指定しています。 この文書は、食品と飲み物の調理のためにガスを使用するすべてのプロフェッショナルな調理およびベーカリー機器に適用されます。 この文書では、A1、A2、A3、B1、およびB2のタイプの機器のみを考慮しています。 純カロリック値（Hi）および純Wobbe指数（Wi）のみが使用されます。 特定の機器の要件は、該当するパート2に記載されています。 付録C（情報提供）には、この文書の対象範囲に含まれる主要な機器の一覧が示されています。 この文書でカバーされる機器は、一酸化炭素や他の有毒成分を含むガスを使用することを意図していません。 備考：車両、トレーラー、または船上で使用する機器については、追加の要件が必要になる場合があります。
The article discusses the EN 203-1:2021 standard, which sets out the general safety requirements for gas heated catering equipment. The document applies to professional cooking and bakery appliances that use gas indoors. It specifically considers appliances of types A1, A2, A3, B1, and B2. The requirements for specific types of appliances are outlined in Part 2 of the document. The article also mentions that the scope of the standard includes a list of main equipment types in Annex C. Additionally, it clarifies that the appliances covered by this standard should not use gases containing carbon monoxide or other toxic components. It further states that additional requirements may be necessary for appliances used in vehicles, trailers, or on-board ships.
기사 제목: EN 203-1:2021 - 가스 가열 제식용 장비 - 제1부: 일반 안전 요구사항 기사 내용: 이 문서는 내부에서 사용되는 상업용 가스 가열 제식 및 베이커리 기기의 안전과 합리적인 에너지 이용과 관련된 건설 및 작동 특성에 대한 요구사항과 시험 방법을 명시합니다. 이 문서는 음식과 음료를 준비하기 위해 가스를 사용하는 전문 요리 및 베이커리 기기에 적용됩니다. 본 문서에서는 4절에서 정의된 A1, A2, A3, B1 및 B2 유형의 장비만 고려됩니다. 순간 발열량 (Hi)과 순 와베 지수 (Wi)만 사용됩니다. 특정 종류의 기기에 대한 요구사항은 관련 제2부에서 제시됩니다. 부록 C (안내적)에는 본 문서의 범위에 해당하는 주요 장비 유형이 나열되어 있습니다. 본 문서에서 다루는 기기는 일산화탄소 또는 기타 유독성 성분을 포함하는 가스를 사용하지 않도록 되어 있습니다. 참고: 차량, 트레일러 또는 선박에서 사용되는 기기에는 추가 요구사항이 필요할 수 있습니다.
記事のタイトル: EN 203-1:2021 - ガス加熱調理器具 - パート1: 一般的な安全要件 記事の内容: この文書は、室内で使用されるガス加熱商業用調理器具およびベーカリー用具の安全性と合理的なエネルギー利用に関連する建設および作動特性に関する要件と試験方法を指定しています。 この文書は、食品と飲み物の調理にガスを使用する専門の調理およびベーカリー用具に適用されます。 この文書では、4節で定義されるA1、A2、A3、B1、およびB2のタイプの器具のみが考慮されます。 熱価（Hi）とウォッベ指数（Wi）のみが使用されます。 特定の器具の要件は、関連するパート2で示されています。 付録C (情報提供)には、この文書の範囲に含まれる主な装置の種類がリストされています。 この文書で対象とされる器具は、一酸化炭素やその他の有毒成分を含むガスを使用することは意図されていません。 注意: 車両、トレーラー、船上で使用される器具には、追加の要件が必要な場合があります。
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