1、BS EN 525:2009ICS 97.100.20NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBRITISH STANDARDNon-domestic directgas-fired forcedconvection air heatersfor space heating notexceeding a net heatinput of 300 kWThis British Standardwas published under theauthority of the StandardsPoli
2、cy and StrategyCommittee on 30 June2009. BSI 2009ISBN 978 0 580 58507 4Amendments/corrigenda issued since publicationDate CommentsBS EN 525:2009National forewordThis British Standard is the UK implementation of . It supersedes BSEN 525:1998 which is withdrawn.The UK participation in its preparation
3、was entrusted to TechnicalCommittee GSE/20, Non-domestic space heaters (gas).A list of organizations represented on this committee can be obtained onrequest to its secretary.This publication does not purport to include all the necessary provisionsof a contract. Users are responsible for its correct
4、application.Compliance with a British Standard cannot confer immunityfrom legal obligations.BS EN 525:2009EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 525May 2009ICS 97.100.20 Supersedes EN 525:1997 English VersionNon-domestic direct gas-fired forced convection air heaters forspace heating not
5、exceeding a net heat input of 300 kWGnrateurs dair chaud chauffage direct et convectionforce utilisant les combustibles gazeux pour le chauffagede locaux usage non-domestique, de dbit calorifique surHi infrieur ou gal 300 kWGasbefeuerte Warmlufterzeuger ohne Wrmetauscher miterzwungener Konvektion zu
6、m Beheizen von Rumen frden nicht-huslichen Gebrauch mit einerNennwrmebelastung nicht ber 300 kWThis European Standard was approved by CEN on 30 April 2009.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the sta
7、tus of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the CEN Management Centre or to any CEN member.This European Standard exists in three official versions (English, French, German). A
8、version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as theofficial versions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, D
9、enmark, Estonia, Finland,France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISAT
10、IONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: Avenue Marnix 17, B-1000 Brussels 2009 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 525:2009: EBS EN 525:2009EN 525:2009 (E) 2 Contents Page Foreword . 41 Scope . 52 Normative re
11、ferences . 53 Terms and definitions. 63.1 Appliance and its constituent parts 63.2 Adjustment, control and safety devices . 93.3 Appliance operation . 113.4 Gases . 133.5 Conditions of operation and measurement . 153.6 Marking of the appliance and packaging . 154 Classification . 154.1 Classificatio
12、n of gases . 154.2 Classification of appliance 165 Construction and design requirements 185.1 General . 185.2 Adjusting, control and safety devices 225.3 Ignition devices . 255.4 Combustion and dilution air, pre-purge and post-purge 265.5 Flame supervision system . 275.6 Start-gas flame establishmen
13、t . 275.7 Main flame establishment 285.8 Main burner . 295.9 Facility for remote control . 295.10 Thermostats and control of air temperature 305.11 Gas pressure points . 305.12 Facilities for commissioning and testing . 305.13 Additional requirements for appliances designed for permanent outdoor ins
14、tallation 316 Operational requirements 326.1 Soundness of the gas circuit . 326.2 Heat inputs 326.3 Limiting temperatures 336.4 Ignition, cross-lighting, flame stability . 336.5 Combustion . 346.6 Overheat cut-off device 346.7 Air proving device(s) 356.8 Weather resistance . 357 Test methods . 357.1
15、 General . 357.2 Automatic burner control systems (manually operated devices) . 417.3 Safety of operation . 418 Marking and instructions . 518.1 General . 518.2 Description 518.3 Data plate . 518.4 Other marking . 528.5 Marking on the packaging . 538.6 Profile plate . 538.7 Instructions . 53BS EN 52
16、5:2009EN 525:2009 (E) 3 Annex A (informative) National situations 56A.1 General . 56A.2 Categories listed in the body of the standard and marketed in different countries . 56A.3 Appliance supply pressures corresponding to the categories given in A.2 . 59A.4 Special categories marketed nationally or
17、locally . 59A.5 Test gases corresponding to the special categories given in A.4 . 64A.6 Gas connections in the various countries 65Annex B (normative) Identification of symbols used for marking . 67B.1 Designation of country of destination . 67B.2 Category . 67B.3 Supplementary transitional informat
18、ion . 68Annex C (informative) Guidance for limitations of application of direct-fired air heaters in buildings . 70C.1 Introduction 70C.2 General principles . 70C.3 Safe operating emission levels 70C.4 Assessment of concentrations 70C.5 Case studies . 71Annex D (normative) Special national condition
19、s . 75D.1 General . 75D.2 Belgium . 75D.3 Italy 75Annex E (informative) National solutions for countries whose national bodies are Affiliate Members of CEN 76E.1 Categories listed in the body of the standard and marketed in different countries . 76E.2 Appliance supply pressures corresponding to the
20、categories given in E.1 . 76E.3 Special categories marketed nationally or locally . 76E.4 Gases and test pressures corresponding to the special categories given in E.3 76Annex ZA (informative) Relationship between this European Standard and the Essential Requirements of EU Directive 90/396/EEC (Gas
21、Appliance Directive). 77Bibliography 79BS EN 525:2009EN 525:2009 (E) 4 Foreword This document (EN 525:2009) has been prepared by Technical Committee CEN/TC 180 “Domestic and non-domestic overhead radiant heaters”, the secretariat of which is held by AFNOR. This European Standard shall be given the s
22、tatus of a national standard, either by publication of an identical text or by endorsement, at the latest by November 2009, and conflicting national standards shall be withdrawn at the latest by November 2009. Attention is drawn to the possibility that some of the elements of this document may be th
23、e subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 525:1997. The test gases, test pressures and appliance categories given in this European Standard are in accordance with those specified in EN 437:2
24、003. Other European Standards covering gas-fired air heaters are: EN 621 Non-domestic gas-fired forced convection air heaters for space heating not exceeding a net heat input of 300 kW, without a fan to assist transportation of combustion air and/or combustion products EN 778 Domestic gas-fired forc
25、ed convection air heaters for space heating not exceeding a net heat input of 70 kW, without a fan to assist transportation of combustion air and/or combustion products EN 1020 Non-domestic gas-fired forced convection air heaters for space heating not exceeding a net heat input of 300 kW, incorporat
26、ing a fan to assist transportation of combustion air and/or combustion products EN 1196 Domestic and non-domestic gas-fired air heaters - Supplementary requirements for condensing air heaters EN 1319 Domestic gas-fired forced convection air heaters for space heating, with fan-assisted burners not ex
27、ceeding a net heat input of 70 kW EN 12669 Direct gas-fired hot air blowers for use in greenhouses and supplementary non-domestic space heating This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requ
28、irements of EC Directive 90/396/EEC. For relationship with EC Directive 90/396/EEC, see informative Annex ZA, which is an integral part of this document. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this Eur
29、opean Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the Unite
30、d Kingdom. BS EN 525:2009EN 525:2009 (E) 5 1 Scope This European Standard specifies the requirements and test methods for the safety of non-domestic direct gas-fired forced convection air heaters having fully automatic control systems, hereafter referred to as “appliances“. This European Standard ap
31、plies to appliances of Type A2and Type A3with heat input based on the net calorific value of 300 kW or less fitted with integral burners intended for use other than in residential dwellings. It also applies to appliances designed for outdoor installation. For indoor appliances provision of the heate
32、d air may be by means of ducting or may be directly into the heated space. This standard does not apply to: a) appliances intended for use in residential dwellings; b) portable or transportable forced convection appliances; c) appliances fitted with gas boosters; d) appliances fitted with air/gas ra
33、tio controls; e) appliances which incorporate a main burner having more than one section under a common burner control, of which one or more sections may be extinguished whilst another section remains in operation. This European Standard is applicable to appliances which are intended to be type test
34、ed. NOTE Requirements for appliances which are not type tested would need to be subject to further consideration. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated refere
35、nces, the latest edition of the referenced document (including any amendments) applies. EN 88-1:2007, Pressure regulators and associated safety devices for gas appliances - Part 1: Pressure regulators for inlet pressures up to and including 500 mbar EN 126:2004, Multifuctional controls for gas burni
36、ng appliances EN 161:2007, Automatic shut-off valves for gas burners and gas-burning appliances EN 257:1992, Mechanical thermostats for gas burning appliances EN 298:2003, Automatic burner control systems for gas burners and gas burning appliances with or without fans EN 437:2003, Test gases - Test
37、pressures - Appliance categories 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
38、 - Part 2: Taper external threads and taper internal threads - Dimensions, tolerances and designation EN 60335-1:2002, Safety of household and similar electrical appliances - Part 1: General requirements BS EN 525:2009EN 525:2009 (E) 6 EN 60335-2-102:2006, Electrical equipment of non-electric heatin
39、g appliances for household and similar appliances EN 60529:1991, Degrees of protection provided by enclosures (IP code) EN 60730-1:2000, Automatic electrical controls for household and similar use - Part 1: General requirements EN 60730-2-1:1997, Automatic electrical controls for household and simil
40、ar use - Part 2: Particular requirements for electrical controls for electrical household appliances EN 60730-2-9:2002, Automatic electrical controls for household and similar use - Part 2: Particular requirements for temperature-sensing controls EN 61058-1:2002, Switches for appliances - Part 1: Ge
41、neral requirements EN 61558-2-6:1997, Safety of power transformers, power supply units and similar Part 2-6:. Particular requirements for safety isolating transformers for general use EN ISO 228-1:2003, Pipe threads where pressure-tight joints are not made on the threads - Part 1: Dimensions, tolera
42、nces and designation (ISO 228-1:2000) EN ISO 3166-1:2006, Codes for the representation of names of countries and their subdivisions - Part 1: Country codes (ISO 3166-1:2006) EN ISO 6976:2005, Natural gas - Calculation of the calorific value, density, relative density and Wobbe index from composition
43、 (ISO 6976:1995 including Corrigendum 1:1997, Corrigendum 2:1997 and Corrigendum 3:1999) ISO 7005-1:1992, Metallic flanges - Part 1: Steel flanges ISO 7005-2:1988, Metallic flanges - Part 2: Cast iron flanges ISO 7005-3:1988, Metallic flanges - Part 3: Copper alloy and composite flanges 3 Terms and
44、definitions For the purposes of this document, the following terms and definitions apply. 3.1 Appliance and its constituent parts 3.1.1 non-domestic air heater appliance designed for the heating and/or ventilation of a building other than a residential dwelling 3.1.2 forced convection air heater app
45、liance designed to provide space heating from a central source by distributing heated air, by means of an air moving device, either through ducting or directly into the heated space 3.1.3 direct fired forced convection air heater forced convection air heater in which the products of combustion mix w
46、ith the heated air being supplied to the space 3,1,4 high temperature direct fired forced convection air heater BS EN 525:2009EN 525:2009 (E) 7 direct fired forced convection air heater designed to operate with an air temperature rise through the appliance greater than 60 K 3.1.5 low temperature dir
47、ect fired forced convection air heater direct fired forced convection air heater designed to operate with a maximum air temperature rise through the appliance of 60 K or less 3.1.6 appliance with facility for downstream re-circulation of air appliance in which a proportion of the heated air can be r
48、eturned to the appliance at a point down stream of the burner and re-distributed 3.1.7 appliance with facility for upstream re-circulation of air appliance in which a proportion of the heated air can be returned to the appliance at a point upstream of the burner and re-distributed. 3.1.8 profile pla
49、tes fixed or adjustable plates fitted for the purpose of setting the air flow velocity across the burner 3.1.9 gas inlet connection part of the appliance intended to be connected to the gas supply 3.1.10 combustion chamber part of the appliance in which the principal combustion process takes place 3.1.11 mechanical joint mechanical means of obtaining soundness means of ensuring the soundness of an assembly of
