Gas heated catering equipment - Part 2-2: Specific requirements - Ovens

Shall be according to EN 203 1:2019, with the following addition:
This European Standard applies to commercial gas heated natural convection ovens, forced air ovens, multi-function ovens and steaming ovens, atmospheric or pressurised.
Commercial bakery ovens, with a sole plate or a trolley and pizza ovens are also covered by this standard.
This European Standard does not cover appliances which are specifically designed for use in industrial process on industrial premises.

Großküchengeräte für gasförmige Brennstoffe - Teil 2-2: Spezifische Anforderungen - Backöfen

Es gilt der Anwendungsbereich von EN 203-1:2021, mit den folgenden Ergänzungen und Änderungen des dritten Absatzes:
Dieses Dokument gilt für Gastronomie-, Bäckerei- und Pizzaöfen.
Dieses Dokument gilt für gasbeheizte konventionelle Öfen, Umluftöfen, Multifunktionsöfen und Dampföfen.
Dieses Dokument gilt nicht für Geräte, die speziell für den industriellen Einsatz in Industrieanlagen konstruiert sind, noch für Geräte, die für den Betrieb mit offener Gerätetür bestimmt sind.

Appareils de cuisson professionnelle utilisant les combustibles gazeux - Partie 2-2: Exigences particulières - Fours

Le domaine d'application de la norme FprEN 203-1:2021 s'applique, avec les ajouts suivants et la modification du 3e alinéa :
Le présent document s'applique aux fours professionnels, de boulangerie et à pizza.
Le présent document s'applique aux fours à convection naturelle et forcée utilisant les combustibles gazeux, aux fours multifonctions et aux fours à vapeur atmosphérique.
Le présent document ne s'applique pas aux appareils conçus spécialement pour une utilisation dans des processus industriels sur un site industriel, ni aux appareils conçus pour fonctionner avec la porte ouverte.

Plinske naprave za gostinstvo - 2-2. del: Posebne zahteve - Pečice

Potrebna je skladnost s standardom EN 203-1:2019, pri čemer se upošteva naslednje:
Ta evropski standard se uporablja za komercialne plinske pečice z naravnim prenosom toplote, ventilacijske pečice, večnamenske pečice in parne pečice (atmosferske ali z vzdrževanjem tlaka).
Ta standard zajema tudi pekarske pečice s podložno ploščo ali vozičkom in pečice za pico.
Ta evropski standard ne zajema aparatov, ki so posebej namenjeni za industrijsko uporabo v industrijskih prostorih.

General Information

Status
Published
Public Enquiry End Date
02-Jun-2020
Publication Date
14-Mar-2022
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
11-Mar-2022
Due Date
16-May-2022
Completion Date
15-Mar-2022

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SLOVENSKI STANDARD
SIST EN 203-2-2:2022
01-april-2022
Nadomešča:
SIST EN 203-2-2:2006
Plinske naprave za gostinstvo - 2-2. del: Posebne zahteve - Pečice
Gas heated catering equipment - Part 2-2: Specific requirements - Ovens

Großküchengeräte für gasförmige Brennstoffe - Teil 2-2: Spezifische Anforderungen -

Backöfen

Appareils de cuisson professionnelle utilisant les combustibles gazeux - Partie 2-2:

Exigences particulières - Fours
Ta slovenski standard je istoveten z: EN 203-2-2:2021
ICS:
97.040.20 Štedilniki, delovni pulti, Cooking ranges, working
pečice in podobni aparati tables, ovens and similar
appliances
SIST EN 203-2-2:2022 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
SIST EN 203-2-2:2022
---------------------- Page: 2 ----------------------
SIST EN 203-2-2:2022
EN 203-2-2
EUROPEAN STANDARD
NORME EUROPÉENNE
December 2021
EUROPÄISCHE NORM
ICS 97.040.20 Supersedes EN 203-2-2:2006
English Version
Gas heated catering equipment - Part 2-2: Specific
requirements - Ovens

Appareils de cuisson professionnelle utilisant les Großküchengeräte für gasförmige Brennstoffe - Teil 2-

combustibles gazeux - Partie 2-2: Exigences 2: Spezifische Anforderungen - Öfen
particulières - Fours
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 203-2-2:2021 E

worldwide for CEN national Members.
---------------------- Page: 3 ----------------------
SIST EN 203-2-2:2022
EN 203-2-2:2021 (E)
Contents Page

European foreword ....................................................................................................................................................... 3

1 Scope .................................................................................................................................................................... 5

2 Normative references .................................................................................................................................... 5

3 Terms and definitions ................................................................................................................................... 5

4 Classification ..................................................................................................................................................... 7

5 Constructional requirements ..................................................................................................................... 7

6 Performance requirements ......................................................................................................................... 8

7 Test conditions ................................................................................................................................................. 9

8 Marking and instructions .......................................................................................................................... 12

Annex ZA (informative) Relationship between this European Standard and the essential

requirements of Regulation (EU) 2016/426 aimed to be covered ............................................. 13

---------------------- Page: 4 ----------------------
SIST EN 203-2-2:2022
EN 203-2-2:2021 (E)
European foreword

This document (EN 203-2-2:2021) 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 203-2-2:2005.
The technical changes in comparison to the previous edition are:
— alignment with EN 203-1:2021,
— clarification of the scope according to EN 203-1:2021,

— clarification of the definitions, especially for bakery ovens, cooking chamber, usable volume of a

cooking chamber and isolating device,
— update of the paragraph on stability and mechanical safety (5.3.2),

— addition of a performance requirement for shut off device for multi-function ovens with direct

heating (6.5.101),
— clarification of the functioning of a sequential burner (6.7.2),
— updating of requirement of rational use of energy in 6.9,

— clarification of the test on stability and mechanical safety for moving parts (7.8.1),

— clarification of the test for rational use of energy (7.10) for ovens and bakery ovens,

— updating of the calculation of rational use of energy index (7.10.103),
— updating of Clause 8 on marking and instructions.

This document is used in conjunction with EN 203-1:2021 “Gas heated catering equipment – Part 1:

General safety requirements”. This document specifies particular requirements for ovens.

Where a particular subclause of EN 203-1:2021 is not mentioned in this part 2, the subclause of

EN 203-1:2021 applies as far as is reasonable. Where this document states "addition", "modification" or

"replacement", the relevant text of EN 203-1:2021 is to be adapted accordingly.

Subclauses, Figures and Tables which are additional to those in EN 203-1:2021 are numbered starting

with 101.

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).
---------------------- Page: 5 ----------------------
SIST EN 203-2-2:2022
EN 203-2-2:2021 (E)

For relationship with EU Directive(s) / Regulation(s), see informative Annex ZA, which is an integral part

of this document.

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.
---------------------- Page: 6 ----------------------
SIST EN 203-2-2:2022
EN 203-2-2:2021 (E)
1 Scope

The scope of EN 203-1:2021 applies, with the following addition and modification of the 3rd paragraph:

This document applies to catering, bakery and pizza ovens.

This document applies to gas heated natural and forced convection ovens, multi-function ovens and

atmospheric steaming ovens.

This document does not cover appliances which are specifically designed for use in industrial processes

on industrial premises nor appliances intended to be operated with the door open.

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 203-1:2021, Gas heated catering equipment - Part 1: General safety requirements

EN 60335-1:2012 , Household and similar electrical appliances - Safety - Part 1: General requirements

3 Terms and definitions

For the purposes of this document, the terms and definitions given in EN 203-1:2021 and the following

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/
Clause 3 of EN 203-1:2021 applies with the following additions:
3.101 Terminology referring to type of appliances
3.101.1
natural convection oven
appliance in which food is cooked in a chamber by natural convection
3.101.2
forced convection oven

appliance equipped with a cooking chamber in which hot air is circulated by means of an electro-

mechanical device
3.101.3
multi-function oven
appliance having several modes of cooking:
— natural convection mode: heating of the cooking chamber by natural convection;

1) 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.
---------------------- Page: 7 ----------------------
SIST EN 203-2-2:2022
EN 203-2-2:2021 (E)
— hot air mode: heating of the cooking chamber by forced convection;

— steam mode: a steam generator produces steam which is injected into the cooking chamber. The oven

can be used as a steam cooker without pressure;

— mixed mode: combination of the hot-air and steam modes; the hot air is humidified by the steam. The

steam injection can be continuous or intermittent by selection of the operator.

Note 1 to entry: Certain ovens do not have a steam generator. Steam is produced by the injection of water.

3.101.4
bakery oven

oven designed exclusively for cooking bakery products (e.g. bread, cake, pastry, pizza, Danish product,…)

3.101.5
direct heating
food is directly heated by the products of combustion
3.101.6
indirect heating
food is not directly heated by the products of combustion
3.101.7
steam generator
apparatus providing the water vapour used to cook the food
3.101.8
cooking chamber
interior of the oven in which food products are heated or cooked
Note 1 to entry: More than one cooking chamber may be present.
3.101.9
usable volume of a cooking chamber

useful shelf area (shelf or bottom of the chamber) multiplied by the height of the accessible opening

3.101.10
usable volume of an oven
sum of the usable volumes of the cooking chamber(s) of the oven
3.101.11
centre of the cooking chamber
geometric centre of the usable volume of the cooking chamber of the oven
3.101.12
shelf support
support designed to receive the cooking shelves and cooking plates
3.101.13
trolley

apparatus allowing the pre-loading of several shelves outside the appliance prior to introduction in the

oven
---------------------- Page: 8 ----------------------
SIST EN 203-2-2:2022
EN 203-2-2:2021 (E)
3.101.14
oven accessory

accessory used for cooking in the oven, supplied with the appliance or as an option (e.g. cooking shelf,

pastry trays, roasting pans, perforated pans, baskets)
3.101.15
isolating device

device permitting the isolation of components of the gas circuit of the appliance (combustion air fan,

pressure switch, multifunction control etc.) of multi-function ovens with direct heating

Note 1 to entry: This device prevents ingress of steam in the gas circuit when the oven is used in the vapour mode.

Note 2 to entry: In the hot air or mixed mode, the isolating device is in the open position to keep clear the injection

of the air gas mixture to the combustion head.
4 Classification
Clause 4 of EN 203-1:2021 applies.
5 Constructional requirements
5.1 General
Shall be according to EN 203-1:2021, 5.1 with the following additions:
5.1.6.101 Evacuation of combustion products for multi-function ovens

Combined combustion products circuits shall be constructed in such a way as to ensure that the burner

of the steam generator and the burner for hot air mode shall not influence each other in any way.

The requirements of EN 203-1:2021, 6.7 shall be fulfilled for separate and combined operations of the

burners.

In the case of multi-function ovens with direct heating if a closing/opening device of the combustion

products circuit exists, its opening shall be controlled and maintained when in hot air mode and mixed

mode. A control device shall be used to ensure that the burner cannot be operated if the evacuation circuit

of the products of combustion is closed.
5.2 Particular requirements for components in the gas circuit
5.2.3 Auxiliary equipment
Shall be according to EN 203-1:2021, 5.2.3 with the following addition:
5.2.3.101 Isolating device for multi-function ovens with direct heating

An isolating device shall be used in order to avoid any contact of steam with the operating and safety

controls of the gas circuit such as gas control, multifunction controls, pressure switches etc.

The correct operation of the isolating device is checked according to 7.8.102.
5.3 Particular requirements
5.3.2 Stability and mechanical safety
Shall be according to EN 203-1:2021, 5.3.2 with the following addition:
---------------------- Page: 9 ----------------------
SIST EN 203-2-2:2022
EN 203-2-2:2021 (E)

Appliances other than those intended to be fixed to the floor shall not tilt when the door(s) is(are) opened

and subjected to a load according to 7.8.1.102.

The forced convection burners, in hot air mode, shall not operate unless the oven door(s) is(are) closed.

The air circulation
...

SLOVENSKI STANDARD
oSIST prEN 203-2-2:2020
01-maj-2020
Plinske naprave za gostinstvo - 2-2. del: Posebne zahteve - Pečice
Gas heated catering equipment - Part 2-2: Specific requirements - Ovens

Großküchengeräte für gasförmige Brennstoffe - Teil 2-2: Spezifische Anforderungen -

Backöfen

Appareils de cuisson professionnelle utilisant les combustibles gazeux - Partie 2-2:

Exigences particulières - Fours
Ta slovenski standard je istoveten z: prEN 203-2-2
ICS:
97.040.20 Štedilniki, delovni pulti, Cooking ranges, working
pečice in podobni aparati tables, ovens and similar
appliances
oSIST prEN 203-2-2:2020 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
oSIST prEN 203-2-2:2020
---------------------- Page: 2 ----------------------
oSIST prEN 203-2-2:2020
DRAFT
EUROPEAN STANDARD
prEN 203-2-2
NORME EUROPÉENNE
EUROPÄISCHE NORM
April 2020
ICS Will supersede EN 203-2-2:2006
English Version
Gas heated catering equipment - Part 2-2: Specific
requirements - Ovens

Appareils de cuisson professionnelle utilisant les Großküchengeräte für gasförmige Brennstoffe - Teil 2-

combustibles gazeux - Partie 2-2: Exigences 2: Spezifische Anforderungen - Backöfen

particulières - Fours

This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee

CEN/TC 106.

If this draft becomes a European Standard, 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.

This draft European Standard was established by CEN 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.

Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are

aware and to provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without

notice and shall not be referred to as a European Standard.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels

© 2020 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 203-2-2:2020 E

worldwide for CEN national Members.
---------------------- Page: 3 ----------------------
oSIST prEN 203-2-2:2020
prEN 203-2-2:2020 (E)
Contents Page

European Foreword ...................................................................................................................................................... 3

1 Scope .................................................................................................................................................................... 4

2 Normative references .................................................................................................................................... 4

3 Terms and definitions ................................................................................................................................... 4

3.1 Terminology referring to ovens ................................................................................................................. 4

4 Classification ..................................................................................................................................................... 6

5 Constructional requirements ..................................................................................................................... 6

5.1 Conversion to different gases ..................................................................................................................... 6

5.2 Particular requirements for components in the gas circuit ............................................................ 6

5.3 Particular requirements ............................................................................................................................... 6

6 Performance requirements ......................................................................................................................... 7

6.1 Soundness .......................................................................................................................................................... 7

6.2 Obtaining the gas rate.................................................................................................................................... 7

6.3 Safety of operation .......................................................................................................................................... 7

6.4 Influence of burners on each other .......................................................................................................... 7

6.5 Auxiliary equipment ...................................................................................................................................... 7

6.6 Air proving device ........................................................................................................................................... 7

6.7 Combustion ....................................................................................................................................................... 8

6.8 Auxiliary energy .............................................................................................................................................. 8

6.9 Rational use of energy ................................................................................................................................... 8

6.10 Operating requirements - Temperature of the LPG cylinder and its compartment ............... 8

7 Test conditions ................................................................................................................................................. 9

7.1 General ................................................................................................................................................................ 9

7.2 Soundness .......................................................................................................................................................... 9

7.3 Obtaining gas rates ......................................................................................................................................... 9

7.4 Operational safety ........................................................................................................................................... 9

7.5 Auxiliary equipment ...................................................................................................................................... 9

7.6 Combustion ....................................................................................................................................................... 9

7.7 Air-proving device ....................................................................................................................................... 10

7.8 Special tests .................................................................................................................................................... 10

7.9 Test method - Overheating of the LPG cylinder and its compartment ...................................... 11

7.10 Rational use of energy ................................................................................................................................ 11

8 Marking and instructions .......................................................................................................................... 12

Annex ZA (informative) Relationship between this European Standard and the essential

requirements of Regulation (EU) 2016/426 aimed to be covered ............................................. 13

---------------------- Page: 4 ----------------------
oSIST prEN 203-2-2:2020
prEN 203-2-2:2020 (E)
European Foreword

This document (prEN 203-2-2:2020) has been prepared by Technical Committee CEN/TC 106 “Large

kitchen appliances using gaseous fuels”, the secretariat of which is held by AFNOR.

This document is currently submitted to the CEN Enquiry.
This document will supersede EN 203-2-2:2005.

This document has been prepared under a standardization request (under drafting) 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.
The technical changes in comparison to the previous edition are:
— alignment with part 1,
— clarification of the scope according to EN 203-1,

— clarification of the definitions, especially for bakery ovens, cooking chamber, usable volume of a

cooking chamber and isolating device,
— update of the paragraph on stability and mechanical safety (5.3.2),

— addition of a performance requirement for shut off device for multi-function ovens with direct

heating (6.5.101),
— clarification of the functioning of a sequential burner (6.7.2),
— updating of rational use of energy in 6.9,

— clarification of the test on stability and mechanical safety for moving parts (7.8.1),

— clarification of the rational use of energy (7.10) for ovens and bakery ovens,
— updating of the calculation of rational use of energy index (7.10.103),
— updating of Clause 8 on marking and instructions.

This document is used in conjunction with EN 203-1 “Gas Heated Catering Equipment – Part 1: General

safety requirements”. This document specifies particular requirements for open and wok burners.

Subclauses and Figures which are additional to those in EN 203-1 are numbered with 101.

---------------------- Page: 5 ----------------------
oSIST prEN 203-2-2:2020
prEN 203-2-2:2020 (E)
1 Scope

The scope of prEN 203-1:2019 applies, with the following addition and modification of the 3rd

paragraph:
This document applies to catering, bakery and pizza ovens.

This document applies to gas heated natural and forced convection ovens, multi-function ovens and

atmospheric steaming ovens.

This document does not cover appliances which are specifically designed for use in industrial process on

industrial premises nor appliances intended to operate door open.
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

prEN 203-1:2019. Gas heated catering equipment - Part 1: General safety requirements

3 Terms and definitions

For the purposes of this document, the terms and definitions given in prEN 203 1:2019 and the following

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 Terminology referring to ovens
3.101.1
natural convection oven
appliance in which food is cooked in a chamber by natural convection
3.101.2
forced convection oven

appliance equipped with a cooking chamber in which hot air is circulated by means of an electro-

mechanical device
3.101.3
multi-function oven
appliance having several modes of cooking:
— natural convection mode: heating of the cooking chamber by natural convection;
— hot air mode: heating of the cooking chamber by forced convection;

— steam mode: a steam generator produces steam which is injected into the cooking chamber. The oven

can be used as a steam cooker without pressure;

— mixed mode: combination of the hot-air and steam modes ; the hot air is humidified by the steam.

The steam injection can be continuous or intermittent by selection of the operator

Note 1 to entry: Certain ovens do not have a steam generator. Steam is produced by the injection of water

---------------------- Page: 6 ----------------------
oSIST prEN 203-2-2:2020
prEN 203-2-2:2020 (E)
3.101.4
bakery oven

oven designed exclusively for cooking bakery products (e.g. bread, cake, pastry, pizza, Danish product,…)

3.101.5
direct heating
food is directly heated by the products of combustion
3.101.6
indirect heating
food is not directly heated by the products of combustion
3.101.7
steam generator
apparatus providing the water vapour used to cook the food
3.101.8
cooking chamber
interior of the oven in which food products are heated or cooked
Note 1 to entry: more than one cooking chamber may be present
3.101.9
usable volume of a cooking chamber

useful shelf area (shelf or bottom of the chamber) multiplied by the height of the accessible opening

3.101.10
usable volume of an oven (V)
sum of the usable volumes of the cooking chamber(s) of the oven
3.101.11
centre of the cooking chamber
geometric centre of the usable volume of the cooking chamber of the oven
3.101.12
shelf support
support designed to receive the cooking shelves and cooking plates
3.101.13
trolley and charger

apparatus allowing the pre-loading of several shelves outside the appliance prior to introduction in the

oven which may be moved in rotation by a mechanical device
3.101.14
oven accessory

accessory used for cooking in the oven, supplied with the appliance or as an option (e.g. cooking shelf,

pastry trays, roasting pans, perforated pans, baskets)
---------------------- Page: 7 ----------------------
oSIST prEN 203-2-2:2020
prEN 203-2-2:2020 (E)
3.101.15
isolating device

device permitting the isolation of components of the gas circuit of the appliance (combustion air fan,

pressure switch, multifunction control etc.) of multi-function ovens with direct heating

Note 1 to entry: this device prevents ingress of steam in the gas circuit when the oven is used in the vapour mode

Note 2 to entry: in the hot air or mixed mode, the isolating device is in the open position to keep clear the passing

of the air gas mixture to the combustion head
4 Classification
Clause 4 of prEN 203-1:2019applies.
5 Constructional requirements
Clause 5 of prEN 203-1:2019 applies with the following additions:
5.1 Conversion to different gases
Shall be according to prEN 203-1:2019, 5.1 with the following additions:
5.1.6.101 Evacuation of combustion products for multi-function ovens

Combined combustion products circuits shall be constructed in such a way as to ensure that the burner

of the steam generator and the hot air mode burner shall not influence each other.

The requirements of 6.7 of prEN 203-1:2019 shall be fulfilled for separate and combined operations of

the burners.

In the case of multi-function ovens with direct heating if a closing/opening device of the combustion

products circuit exists, its opening shall be controlled and maintained when in hot air mode and mixed

mode. A control device shall be used to ensure that the burner cannot be operated if the evacuation circuit

of the products of combustion is closed.
5.2 Particular requirements for components in the gas circuit
Shall be according to prEN 203-1:2019, 5.2.
5.2.3 Auxiliary equipment
Shall be according to prEN 203-1:201X, 5.2.3. with the following addition:
5.2.3.101 Isolating device for multi-function ovens with direct heating

An isolating device shall be used in order to avoid any contact of steam with the operating and safety

controls of the gas circuit such as gas control, multifunction controls, pressure switches etc.

The correct operation of the isolating device is checked according to 7.8.3.102.
5.3 Particular requirements
Shall be according to prEN 203-1:2019, 5.3 with the following addition:
5.3.2 Stability and mechanic
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