EN 1266:2002/A1:2005

Independent gas-fired convection heaters incorporating a fan to assist transportation of combustion air and/or flue gases

To include: Updated references; technical changes resulting from the study of Formal Vote comments.

Konvektions-Raumheizer für gasförmige Brennstoffe mit gebläseunterstützter Verbrennungsluftzu- und/oder Abgasabführung

Appareils de chauffage indépendants à convection utilisant les combustibles gazeux et intégrant un ventilateur pour faciliter l'alimentation en air comburant et/ou l'évacuation des produits de combustion

Prostostoječi plinski konvekcijski grelniki z ventilatorjem za zgorevalni zrak in/ali dimne pline - Dopolnilo A1

General Information

• Status: Published
• Publication Date: 16-Aug-2005
• Withdrawal Date: 27-Feb-2006
• ICS: 97.100.20 - Gas heaters
• Technical Committee: CEN/TC 62 - Independent gas-fired space heaters
• Drafting Committee: CEN/TC 62/WG 1 - EN-Convectors
• Current Stage: 6060 - Definitive text made available (DAV) - Publishing
• Start Date: 17-Aug-2005
• Completion Date: 17-Aug-2005
• Directive: 2009/142/EC - DIRECTIVE 2009/142/EC OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL of 30 November 2009 relating to appliances burning gaseous fuels
• Directive: 90/396/EEC - Appliances burning gaseous fuels
• Mandate: M/BC/CEN/89/6 - Standardization request to CEN concerning appliances burning gaseous fuels
• Ref Project: SIST EN 1266:2004/A1:2005 - Independent gas-fired convection heaters incorporating a fan to assist transportation of combustion air and/or flue gases - Amendment A1

Relations

• Amends: EN 1266:2002 - Independent gas-fired convection heaters incorporating a fan to assist transportation of combustion air and/or flue gases
• Effective Date: 22-Dec-2008

Overview

EN 1266:2002/A1:2005 is a CEN draft amendment to the European standard EN 1266:2002 covering independent gas-fired convection heaters incorporating a fan to assist transportation of combustion air and/or flue gases. The amendment updates normative references and introduces technical changes resulting from formal vote comments. It supports essential requirements of EU directives and clarifies construction, electrical safety, operational tests and marking for fan‑assisted gas convection heaters (type B and type C appliances).

Key topics and requirements

• Scope and purpose

  • Applies to independent gas‑fired convection heaters with fan-assisted combustion air and/or flue gas transport.
  • Amendment updates references and modifies test and construction clauses.

• Updated normative references

  • EN 161:2001, EN 298:2003, EN 437:2003, EN 60335-1:2002; added EN 50165:1997 for electrical equipment of non‑electric appliances.

• Constructional requirements

  • Improved accessibility/maintenance: removable parts must be easy to reassemble and misassembly must be obvious.
  • Type B outlet socket/adaptor insertion depth clarified (D‑2 mm pipe insertion distances for horizontal and vertical connections).
  • Removable injectors/restrictors must carry indelible identification.
  • Electrical equipment must comply with EN 50165:1997 to obviate electrical hazards.

• Ignition and controls

  • New clause allowing direct ignition of main burner under defined conditions (automatic ignition or ≤4 kW heat input during ignition).
  • Automatic burner control and valve system references updated (EN 298:2003, EN 161:2001).

• Operational and safety tests

  • Revised procedures for interruption, fluctuation and restoration of auxiliary energy (safety shutdown or compliance with clause 6.5.7).
  • Air proving device exemption note for type C appliances ≤6 kW if clause 6.11.5 is met.
  • CO concentration limits and sampling procedures refined-use of arithmetic means of the nine highest CO values for certain tests.

• Test methods and wind/spillage tests

  • Wind test speeds adjusted (e.g., 2.5 m/s and 12.5 m/s) and sample/position selection procedures clarified.
  • Spillage monitoring tests for fan‑fitted appliances carried out with fan both ON and OFF.

• Marking and documentation

  • Updated references to EN 60335-1:2002 for electrical supply symbols.
  • Updated gas type symbol table and guidance for labelling multi‑gas adjustment scenarios.
  • Annex updates (flue connection practices table revised; Annex D deleted; Annex E note on valve classes).

Applications and who uses this standard

• Manufacturers of gas‑fired convection heaters (design, production, conformity).
• Testing and certification laboratories performing type and safety tests.
• Product safety and compliance engineers ensuring conformity with EU directives.
• HVAC specifiers, installers and maintenance personnel referencing construction, marking and maintenance guidance.
• Regulatory bodies and notified bodies assessing appliance compliance.

Related standards

• EN 161:2001 - Automatic shut‑off valves for gas burners and gas appliances
• EN 298:2003 - Automatic gas burner control systems
• EN 437:2003 - Test gases, pressures, appliance categories
• EN 60335-1:2002 - Household and similar electrical appliances - Safety - General requirements
• EN 50165:1997 - Electrical equipment of non‑electric appliances - Safety requirements

This amendment refines safety, test and marking requirements for fan‑assisted gas convection heaters and is essential for manufacturers and test bodies working to current CEN requirements.

Standards Content (Sample)

SLOVENSKI STANDARD
01-oktober-2005
3URVWRVWRMHþLSOLQVNLNRQYHNFLMVNLJUHOQLNL]YHQWLODWRUMHP]D]JRUHYDOQL]UDNLQDOL
GLPQHSOLQH'RSROQLOR$
Independent gas-fired convection heaters incorporating a fan to assist transportation of
combustion air and/or flue gases - Amendment A1
Konvektions-Raumheizer für gasförmige Brennstoffe mit gebläseunterstützter
Verbrennungsluftzu- und/oder Abgasabführung
Appareils de chauffage indépendants a convection utilisant les combustibles gazeux et
intégrant un ventilateur pour faciliter l'alimentation en air comburant et/ou l'évacuation
des produits de combustion
Ta slovenski standard je istoveten z: EN 1266:2002/A1:2005
ICS:
97.100.20
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 1266:2002/A1
NORME EUROPÉENNE
EUROPÄISCHE NORM
August 2005
ICS 97.100.20
English Version
Independent gas-fired convection heaters incorporating a fan to
assist transportation of combustion air and/or flue gases
Appareils de chauffage indépendants à convection utilisant Konvektions-Raumheizer für gasförmige Brennstoffe mit
les combustibles gazeux et intégrant un ventilateur pour gebläseunterstützter Verbrennungsluftzu- und/oder
faciliter l'alimentation en air comburant et/ou l'évacuation Abgasabführung
des produits de combustion
This amendment A1 modifies the European Standard EN 1266:2002; it was approved by CEN on 7 July 2005.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for inclusion of this
amendment into the relevant national standard without any alteration. Up-to-date lists and bibliographical references concerning such
national standards may be obtained on application to the Central Secretariat or to any CEN member.
This amendment 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 Central Secretariat has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,
Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia,
Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36  B-1050 Brussels
© 2005 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 1266:2002/A1:2005: E
worldwide for CEN national Members.

Foreword
This European Standard (EN 1266:2002/A1:2004) has been prepared by Technical Committee CEN/TC 62
"Independent gas-fired space heaters", the secretariat of which is held by BSI.
This Amendment to the European Standard EN 1266:2002 shall be given the status of a national standard, either
by publication of an identical text or by endorsement, at the latest by February 2006, and conflicting national
standards shall be withdrawn at the latest by February 2006.
This European Standard has been prepared under a mandate given to CEN by the European Commission and the
European Free Trade Association, and supports essential requirements of EU Directive(s).
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following
countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark,
Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta,
Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
1 Clause 2 Normative references
Amend the following references to read as follows:

‘EN 161:2001 Automatic shut-off valves for gas burners and gas appliances’
‘EN 298:2003 Automatic gas burner control systems for gas burners and gas burning appliances with
or without fans’
‘EN 437:2003 Test gases - Test pressures - Appliance categories’
‘EN 60335-1:2002 Household and similar electrical appliances - Safety - Part 1: General requirements (IEC
60335-1:2001, modified)’
Include the following reference:
'EN 50165:1997 Electrical equipment of non-electric appliances for household and similar purposes -
Safety requirements’
In definitions 3.2.2, 3.2.4, 3.2.8, 3.5.1.1, 3.5.1.2 and 3.5.1.3 replace:
‘[EN 437:1993]’ with ‘[EN 437: 2003]’.
2 Clause 5 Constructional requirements
5.3 Accessibility for use and maintenance
Replace the second paragraph with:
‘Removable parts shall be so designed or marked that they are easy to reassemble correctly according to the
manufacturer's instructions and any incorrect assembly shall be obvious.’
5.7.2 Type B appliances
Replace the second paragraph with:
‘It shall be possible to insert into the socket, or adaptor, a pipe, with an outside diameter of (D - 2) mm, for a
distance of at least equal to:
a) 30 mm for a horizontal connection;
b) 15 mm for a vertical connection;
but it shall be impossible to insert it to such a depth that the evacuation of the products of combustion is
impaired.
NOTE Where D is the nominal internal diameter of the appliance outlet.’
5.8 Electrical equipment
Replace the first paragraph with the following:
'The electrical equipment of the appliance shall be so designed and constructed as to obviate hazards of an
electrical origin. The appliance shall comply with the requirements of EN 50165:1997 which covers such
hazards.'
Second paragraph shall be deleted.
Replace the following:
‘EN 298:1993’ with ‘EN 298:2003’;
5.9 Safety in the event of fluctuation, interruption and restoration of the auxiliary energy
Replace the first paragraph with:
‘5.9.1 Interruption and restoration
'When interruption and subsequent restoration affects safety, then interruption and subsequent restoration of
the electricity supply at any time during the starting up or operation of the appliance shall result in either safety
shutdown, or, the appliance shall comply with 6.5.7.’
The second paragraph shall be entitled as follows:
‘5.9.2 Fluctuation’
5.10 Air proving devices
5.10.1 General
Add the following text as a Note at the end of the sub-clause:
'NOTE For type C appliances with a heat input less than or equal to 6 kW, an air proving device is not mandatory provided
the requirements of 6.11.5 are met.'
5.11.3.3 Automatic valve systems
Replace:
‘EN 161:1991’ with ‘EN 161:2001’
5.11.6 Automatic burner control system
Replace:
‘EN 298:1993’ with ‘EN 298:2003’
5.12 Ignition burner
Renumber clause as sub-clause 5.12.2.
Insert a new clause 5.12 entitled Ignition devices.
Insert the following as a new sub-clause:
'5.12.1 Direct ignition of the main burner
'Direct ignition of the main burner is allowable for appliances which:
'a) incorporate an automatic ignition system; or
'b) have a heat input less than or equal to 4 kW during the ignition procedure.'
5.13 Burners
Include the following text as a new first paragraph:
‘Every removable injector and/or removable restrictor shall carry an indelible means of identification preventing any
confusion.’
5.14 Motors and fans
Delete clause 5.14.1.
3 Clause 6 Operational requirements
6.6 Pressure governors
The second line of the paragraph 1 shall read as follows:
'.by more than ± 5 % for second and third family gases, from the rate…'
6.7.1 CO concentration for all appliances
Replace the text of indent ‘b)’ with:
‘0,2 % when the appliance is supplied with the incomplete combustion limit gas under the test conditions
described in 7.7.2.2, and, under all test conditions described in 7.7.3, excluding 7.7.3.1 a), including the
arithmetic mean calculated as given in 7.7.3.4.’
4 Clause 7 Test methods
7.2.3 Escape of unburnt gas - burner (Type B appliances only)
In paragraph 2, delete the following text:
...