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  • UNI EN 15420 : 2011

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    Superseded A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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    GAS-FIRED CENTRAL HEATING BOILERS - TYPE C BOILERS OF NOMINAL HEAT INPUT EXCEEDING 70 KW, BUT NOT EXCEEDING 1000 KW

    Available format(s): 

    Superseded date:  22-11-2012

    Language(s): 

    Published date:  01-01-2011

    Publisher:  Ente Nazionale Italiano di Unificazione (UNI)

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    Table of Contents - (Show below) - (Hide below)

    Foreword
    1 Scope
    2 Normative references
    3 Terms and definitions
    4 Classification of boilers
    5 Constructional requirements
    6 Operational requirements
    7 Test methods
    8 Marking and instructions
    Annex A (informative) - National situations
    Annex B (informative) - Special national conditions
    Annex C (informative) - A-deviations
    Annex D (informative) - Classification of type C boilers
    Annex E (informative) - Practical method of calibrating
            the test rig to enable the heat loss D[p] to be
            determined
    Annex F (informative) - Main symbols and abbreviations
            used
    Annex G (informative) - Compilation of test conditions
    Annex H (informative) - Valving
    Annex I (informative) - Determination of the heat losses
            from the test rig of the indirect method and the
            contributions of the circulating pump of the test
            rig
    Annex J (informative) - Means of determining the
            ignition time at full rate
    Annex K (informative) - Example of the calculation
            of the NO[x] weighting factors for a boiler with
            several rates
    Annex L (informative) - Calculation of conversions
            of NO[x]
    Annex M (normative) - Test apparatus for type C2
            boilers
    Annex N (informative) - Requirements and test methods
            for separate air supply and combustion products
            evacuation ducts of type C6 boilers
    Annex O (informative) - Use of test gases
    Annex ZA (informative) - Clauses of this European Standard
             addressing essential requirements or provisions of
             EU Directives
    Bibliography

    Abstract - (Show below) - (Hide below)

    Describes the requirements and test methods concerning, in particular, the construction, safety, fitness for purpose, and rational use of energy, as well as the classification and marking of gas-fired central heating boilers that are fitted with atmospheric burners, fan-assisted atmospheric burners or fully premixed burners, and are hereafter referred to as "boilers".

    General Product Information - (Show below) - (Hide below)

    Document Type Standard
    Publisher Ente Nazionale Italiano di Unificazione (UNI)
    Status Superseded
    Superseded By

    Standards Referencing This Book - (Show below) - (Hide below)

    EN 676:2003+A2:2008/AC:2008 AUTOMATIC FORCED DRAUGHT BURNERS FOR GASEOUS FUELS
    ISO 2553:2013 Welding and allied processes Symbolic representation on drawings Welded joints
    IEC 60730-2-9:2015 RLV Automatic electrical controls - Part 2-9: Particular requirements for temperature sensing controls
    EN 50165 : 97 AMD 1 2001 ELECTRICAL EQUIPMENT ON NON-ELECTRIC APPLIANCES FOR HOUSEHOLD AND SIMILAR PURPOSES - SAFETY REQUIREMENTS
    EN 10029:2010 Hot-rolled steel plates 3 mm thick or above - Tolerances on dimensions and shape
    EN 12067-2:2004 Gas/air ratio controls for gas burners and gas burning appliances - Part 2: Electronic types
    EN 1057:2006+A1:2010 Copper and copper alloys - Seamless, round copper tubes for water and gas in sanitary and heating applications
    EN 1643:2014 Safety and control devices for gas burners and gas burning appliances - Valve proving systems for automatic shut-off valves
    EN 15417:2006 Gas-fired central heating boilers - Specific requirements for condensing boilers with a nominal heat input greater than 70 kW but not exceeding 1000 kW
    EN 60730-2-9:2010 Automatic electrical controls for household and similar use - Part 2-9: Particular requirements for temperature sensing controls
    EN 12067-1 : 98 AMD 1 2003 GAS/AIR RATIO CONTROLS FOR GAS BURNERS AND GAS BURNING APPLIANCES - PART 1: PNEUMATIC TYPES
    EN 1092-3:2003/AC:2007 FLANGES AND THEIR JOINTS - CIRCULAR FLANGES FOR PIPES, VALVES, FITTINGS AND ACCESSORIES, PN DESIGNATED - PART 3: COPPER ALLOY FLANGES
    EN ISO 4063:2010 Welding and allied processes - Nomenclature of processes and reference numbers (ISO 4063:2009, Corrected version 2010-03-01)
    EN 483:1999/A4:2007 GAS-FIRED CENTRAL HEATING BOILERS - TYPE C BOILERS OF NOMINAL HEAT INPUT NOT EXCEEDING 70 KW
    EN ISO 3166-1:2014 Codes for the representation of names of countries and their subdivisions - Part 1: Country codes (ISO 3166-1:2013)
    EN 161:2011+A3:2013 Automatic shut-off valves for gas burners and gas appliances
    EN 1854:2010 Pressure sensing devices for gas burners and gas burning appliances
    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)
    ISO 857:1990 Welding, brazing and soldering processes — Vocabulary
    ISO 7-1:1994 Pipe threads where pressure-tight joints are made on the threads Part 1: Dimensions, tolerances and designation
    EN 437:2003+A1:2009 Test gases - Test pressures - Appliance categories
    EN 125:2010+A1:2015 Flame supervision devices for gas burning appliances - Thermoelectric flame supervision devices
    IEC 60529:1989+AMD1:1999+AMD2:2013 CSV Degrees of protection provided by enclosures (IP Code)
    EN 126:2012 Multifunctional controls for gas burning appliances
    CR 1404:1994 Determination of emissions from appliances burning gaseous fuels during type-testing
    CR 1472:1997 General guidance for the marking of gas appliances
    CR 1749 : 2001 EUROPEAN SCHEME FOR THE CLASSIFICATION OF GAS APPLIANCES ACCORDING TO THE METHOD OF EVACUATION OF THE PRODUCTS OF COMBUSTION (TYPES)
    ISO 3166-1:2013 Codes for the representation of names of countries and their subdivisions Part 1: Country codes
    EN 61558-2-6:2009 Safety of transformers, reactors, power supply units and similar products for supply voltages up to 1 100 V - Part 2-6: Particular requirements and tests for safety isolating transformers and power supply units incorporating safety isolating transformers
    EN 60335-1:2012/A13:2017 HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES - SAFETY - PART 1: GENERAL REQUIREMENTS (IEC 60335-1:2010, MODIFIED)
    EN 298:2012 Automatic burner control systems for burners and appliances burning gaseous or liquid fuels
    EN 60529:1991/AC:2016-12 DEGREES OF PROTECTION PROVIDED BY ENCLOSURES (IP CODE) (IEC 60529 EDITION 2.2 CORRIGENDUM 2:2015)
    EN 1856-1:2009 Chimneys - Requirements for metal chimneys - Part 1: System chimney products
    ISO 4063:2009 Welding and allied processes — Nomenclature of processes and reference numbers
    EN 1092-2:1997 Flanges and their joints - Circular flanges for pipes, valves, fittings and accessories, PN designated - Part 2: Cast iron flanges
    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
    ISO 228-1:2000 Pipe threads where pressure-tight joints are not made on the threads Part 1: Dimensions, tolerances and designation
    EN 1561:2011 Founding - Grey cast irons
    EN 257:2010 Mechanical thermostats for gas-burning appliances
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