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BS EN 303-1:2017

Current

Current

The latest, up-to-date edition.

Heating boilers Heating boilers with forced draught burners. Terminology, general requirements, testing and marking

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

21-09-2017

European foreword
1 Scope
2 Normative references
3 Terms and definitions, units and symbols
4 Requirements
5 Tests
6 Marking
7 Technical documentation, scope of supply
Annex A (informative) - Conformity evaluation
Annex ZA (informative) - Relationship between this
         European Standard and the ecodesign
         requirements of Commission Regulation
        (EU) No [813/2013] aimed to be covered
Annex ZB (informative) - Relationship between this
         European Standard and the ecodesign
         requirements of Commission Regulation
         (EU) No [811/2013] aimed to be covered
Bibliography

Pertains to boilers used for central heating (heating boilers) with forced draught burners with a nominal heat output not exceeding 1000 kW, which are operated either with negative pressure (natural draught boilers) or with positive pressure (pressurized boiler) in the combustion chamber, in accordance with the boiler instructions.

This European Standard applies to boilers used for central heating (heating boilers) with forced draught burners with a nominal heat output not exceeding 1 000 kW, which are operated either with negative pressure (natural draught boilers) or with positive pressure (pressurized boiler) in the combustion chamber, in accordance with the boiler instructions. This European Standard specifies the necessary terminology, the requirements on the materials and testing of them, and marking requirements for heating boilers. Particular requirements for boilers that can be used with open vented systems are contained in EN 303 4. The requirements of this standard apply to heating boilers that are tested on an authorized test rig. Boilers in accordance with this standard are designed for the heating of central heating installations in which the heat carrier is water, and the maximum allowable operating temperature of which is restricted to 100 °C. The maximum allowable operating pressure is 8 bar. For boilers and water heaters (storage or continuous flow heater) this standard only applies to the parts which are necessarily subject to the operating conditions of the heating boiler (heating part). This standard does not apply to gas boilers with atmospheric burners, boilers for solid fuels, boilers with oil vaporization burners. For these boilers there are further requirements.

Committee
RHE/24
DevelopmentNote
Partially supersedes BS 779(1989) & BS 855(1990) Together with BS EN 303-2 it supersedes BS 4256-2(1972) Supersedes 94/710141 DC (06/2004) Supersedes 16/30338096 DC. (10/2017)
DocumentType
Standard
Pages
42
PublisherName
British Standards Institution
Status
Current
Supersedes

Standards Relationship
UNE-EN 303-1:2000 Identical
NBN EN 303-1 : 1999 AMD 1 2003 Identical
NF EN 303-1 : 2017 Identical
NEN EN 303-1 : 2017 Identical
UNI EN 303-1 : 2005 Identical
I.S. EN 303-1:2017 Identical
EN 303-1:2017 Identical
SN EN 303-1 : 2017 Identical

17/30351608 DC : 0 BS 5410-2 - CODE OF PRACTICE FOR OIL FIRING - PART 2: INSTALLATIONS PROVIDING SPACE HEATING, HOT WATER AND STEAM SUPPLY SERVICES TO NON-DOMESTIC BUILDINGS
BS 5410-1:2014 Code of practice for oil firing Installations up to 45 kW output capacity for space heating and hot water supply purposes
12/30170835 DC : 0 BS 5410-2 - CODE OF PRACTICE FOR OIL FIRING - PART 2: SPACE HEATING, HOT WATER AND STEAM SUPPLY SERVICES FOR COMMERCIAL AND INDUSTRIAL PREMISES
11/30229801 DC : 0 BS 6644 - SPECIFICATION FOR THE INSTALLATION OF GAS-FIRED HOT WATER BOILERS OF RATED INPUTS BETWEEN 70 KW (NET) AND 1.8 MW (NET) (2ND AND 3RD FAMILY GASES)
BS 6644(2005) : 2005 SPECIFICATION FOR INSTALLATION OF GAS-FIRED HOT WATER BOILERS OF RATED INPUTS BETWEEN 70 KW (NET) AND 1.8 MW (NET) (2ND AND 3RD FAMILY GASES)
BS 6644:2011 Specification for the installation and maintenance of gas-fired hot water boilers of rated inputs between 70 kW (net) and 1.8 MW (net) (2nd and 3rd family gases)
BS 5410-2:1978 Code of practice for oil firing Installations of 45 kW and above output capacity for space heating, hot water and steam supply services
14/30285453 DC : 0 BS 5410-1 - CODE OF PRACTICE FOR OIL FIRING - PART 1: INSTALLATIONS UP TO 45 KW OUTPUT CAPACITY FOR SPACE HEATING AND HOT WATER SUPPLY PURPOSES
03/310868 DC : DRAFT JUNE 2003 BS 6644 - SPECIFICATION FOR INSTALLATION OF GAS-FIRED HOT WATER BOILERS OF RATED INPUTS BETWEEN 70KW (NET) AND 2MW (GROSS) (2ND AND 3RD FAMILY GASES)
BS 5410-2:2013 Code of practice for oil firing Installations over 45 kW output capacity for space heating, hot water and steam supply services
BS 5410-1:1997 Code of practice for oil firing Installations up to 45 kW output capacity for space heating and hot water supply purposes

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ISO 2553:2013 Welding and allied processes Symbolic representation on drawings Welded joints
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EN ISO 6506-1:2014 Metallic materials - Brinell hardness test - Part 1: Test method (ISO 6506-1:2014)
ISO 6506-1:2014 Metallic materials Brinell hardness test Part 1: Test method
IEC 60730-2-9:2015 RLV Automatic electrical controls - Part 2-9: Particular requirements for temperature sensing controls
ISO 7005-2:1988 Metallic flanges — Part 2: Cast iron flanges
ISO 9606-2:2004 Qualification test of welders — Fusion welding — Part 2: Aluminium and aluminium alloys
EN 303-6:2000 Heating boilers - Part 6: Heating boilers with forced draught burners - Specific requirements for the domestic hot water operation of combination boilers with atomizing oil burners of nominal heat input not exceeding 70 kW
EN 10027-2:2015 DESIGNATION SYSTEMS FOR STEELS - PART 2: NUMERICAL SYSTEM
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EN 60730-2-9:2010 Automatic electrical controls for household and similar use - Part 2-9: Particular requirements for temperature sensing controls
ISO 7005-3:1988 Metallic flanges Part 3: Copper alloy and composite flanges
EN 14597:2012 Temperature control devices and temperature limiters for heat generating systems
EN ISO 4063:2010 Welding and allied processes - Nomenclature of processes and reference numbers (ISO 4063:2009, Corrected version 2010-03-01)
ISO 9606-1:2012 Qualification testing of welders — Fusion welding — Part 1: Steels
EN 15456:2008 Heating boilers - Electrical power consumption for heat generators - System boundaries - Measurements
ISO 7-2:2000 Pipe threads where pressure-tight joints are made on the threads Part 2: Verification by means of limit gauges
EN 10088-2:2014 STAINLESS STEELS - PART 2: TECHNICAL DELIVERY CONDITIONS FOR SHEET/PLATE AND STRIP OF CORROSION RESISTING STEELS FOR GENERAL PURPOSES
EN 10028-2:2017 Flat products made of steels for pressure purposes - Part 2: Non-alloy and alloy steels with specified elevated temperature properties
EN 303-2:2017 Heating boilers - Part 2: Heating boilers with forced draught burners - Special requirements for boilers with atomizing oil burners
IEC 61000-6-3:2006+AMD1:2010 CSV Electromagnetic compatibility (EMC) - Part 6-3: Generic standards - Emission standard for residential, commercial and light-industrial environments
ISO 7-1:1994 Pipe threads where pressure-tight joints are made on the threads Part 1: Dimensions, tolerances and designation
EN 303-4:1999 Heating boilers - Part 4: Heating boilers with forced draught burners - Special requirements for boilers with forced draught oil burners with outputs up to 70 kW and a maximum operating pressure of 3 bar - Terminology, special requirements, testing and marking
EN 10021:2006 General technical delivery conditions for steel products
EN 61000-6-2:2005/corrigendum:2005 ELECTROMAGNETIC COMPATIBILITY (EMC) - PART 6-2: GENERIC STANDARDS - IMMUNITY FOR INDUSTRIAL ENVIRONMENTS (IEC 61000-6-2:2005)
IEC 60529:1989+AMD1:1999+AMD2:2013 CSV Degrees of protection provided by enclosures (IP Code)
EN ISO 9606-2:2004 Qualification test of welders - Fusion welding - Part 2: Aluminium and aluminium alloys (ISO 9606-2:2004)
EN 13611:2015/AC:2016 SAFETY AND CONTROL DEVICES FOR BURNERS AND APPLIANCES BURNING GASEOUS AND/OR LIQUID FUELS - GENERAL REQUIREMENTS
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
EN 10204:2004 Metallic products - Types of inspection documents
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EN 15034:2006/AC:2008 HEATING BOILERS - CONDENSING HEATING BOILERS FOR FUEL OIL
ISO 185:2005 Grey cast irons Classification
EN 60335-1:2012/A13:2017 HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES - SAFETY - PART 1: GENERAL REQUIREMENTS (IEC 60335-1:2010, MODIFIED)
ISO 7005-1:2011 Pipe flanges — Part 1: Steel flanges for industrial and general service piping systems
EN 226:1987/AC1:1987 Atomizing oil burners - Connecting dimensions between burners and heat generators
EN 60529:1991/AC:2016-12 DEGREES OF PROTECTION PROVIDED BY ENCLOSURES (IP CODE) (IEC 60529 EDITION 2.2 CORRIGENDUM 2:2015)
ISO 4063:2009 Welding and allied processes — Nomenclature of processes and reference numbers
EN ISO 9606-1:2017 Qualification testing of welders - Fusion welding - Part 1: Steels (ISO 9606-1:2012 including Cor 1:2012 and Cor 2:2013)
EN 15035:2006 Heating boilers - Special requirements for oil fired room sealed units up to 70 kW
IEC 61000-6-2 : 3.0:2016 ELECTROMAGNETIC COMPATIBILITY (EMC) - PART 6-2: GENERIC STANDARDS - IMMUNITY STANDARD FOR INDUSTRIAL ENVIRONMENTS
ISO 857-2:2005 Welding and allied processes Vocabulary Part 2: Soldering and brazing processes and related terms
ISO 228-1:2000 Pipe threads where pressure-tight joints are not made on the threads Part 1: Dimensions, tolerances and designation
EN 60730-1:2016 Automatic electrical controls - Part 1: General requirements
IEC 60730-1:2013+AMD1:2015 CSV Automatic electrical controls - Part 1: General requirements

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