1、November 2009DEUTSCHE NORM English price group 28No part of this standard may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS 97.100.20!$Zn9“155752
2、2www.din.deDDIN EN 525Non-domestic direct gas-fired forced convection air heaters for spaceheating not exceeding a net heat input of 300 kWEnglish version of DIN EN 525:2009-11Gasbefeuerte Warmlufterzeuger ohne Wrmetauscher mit erzwungener Konvektion zumBeheizen von Rumen fr den nicht-huslichen Gebr
3、auch mit einer Nennwrmebelastungnicht ber 300 kWEnglische Fassung DIN EN 525:2009-11SupersedesDIN EN 525:1997-11See start of validitywww.beuth.deDocument comprises pages81DIN EN 525:2009-11 Start of validity This standard takes effect on 1 November 2009. DIN EN 525:1997-11 may be used in parallel un
4、til 30 November 2009. National foreword This standard includes safety requirements. This standard has been prepared by Technical Committee CEN/TC 180 “Domestic and non-domestic gas fired air heaters and non-domestic gas fired overhead radiant heaters” (Secretariat: AFNOR, France). The responsible Ge
5、rman body involved in its preparation was the Normenausschuss Gastechnik (Gas Technology Standards Committee), Technical Committee NA 032-03-01 AA Husliche, gewerbliche und industrielle Gasanwendung. Amendments This standard differs from DIN EN 525:1997-11 as follows: a) Requirements for the evacuat
6、ion of the combustion products by means of ducting have been specified. b) The standard has been brought in line with EN 437:2003. Previous editions DIN 4794-7: 1980-01 DIN EN 525: 1997-11 2 EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 525May 2009ICS 97.100.20 Supersedes EN 525:1997 English Ver
7、sionNon-domestic direct gas-fired forced convection air heaters forspace heating not 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 g
8、al 300 kWGasbefeuerte Warmlufterzeuger ohne Wrmetauscher miterzwungener Konvektion zum 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 Interna
9、l Regulations which stipulate the conditions for giving this EuropeanStandard the status 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.T
10、his European Standard exists in three official versions (English, French, German). A 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 t
11、he national standards bodies of 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
12、 and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES 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:
13、 EEN 525:2009 (E) 2 Contents Page Foreword . 41 Scope . 52 Normative references . 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
14、 the appliance and packaging . 154 Classification . 154.1 Classification 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-pu
15、rge 265.5 Flame supervision system . 275.6 Start-gas flame establishment . 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 Ad
16、ditional requirements for appliances designed for permanent outdoor installation 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 Ai
17、r proving device(s) 356.8 Weather resistance . 357 Test methods . 357.1 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 o
18、n the packaging . 538.6 Profile plate . 538.7 Instructions . 53DIN EN 525:2009-11 EN 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 th
19、e categories given in A.2 . 59A.4 Special categories marketed nationally or 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
20、 of destination . 67B.2 Category . 67B.3 Supplementary transitional information . 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 concentr
21、ations 70C.5 Case studies . 71Annex D (normative) Special national conditions . 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
22、different countries . 76E.2 Appliance supply pressures corresponding to the 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 Europ
23、ean Standard and the Essential Requirements of EU Directive 90/396/EEC (Gas Appliance Directive). 77Bibliography 79DIN EN 525:2009-11 EN 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 s
24、ecretariat 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 November 2009, and conflicting national standards shall be withdrawn at the latest by November 2009. Attention
25、 is drawn to the possibility that some of the elements of this document may be the 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 g
26、iven in this European Standard are in accordance with those specified in EN 437:2003. 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 transport
27、ation of combustion air and/or combustion products EN 778 Domestic gas-fired forced 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 a
28、ir heaters for space heating not exceeding a net heat input of 300 kW, incorporating 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
29、forced convection air heaters for space heating, with fan-assisted burners not exceeding 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 Europea
30、n Commission and the European Free Trade Association, and supports essential requirements 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 s
31、tandards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland
32、, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. DIN EN 525:2009-11 EN 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 autom
33、atic control systems, hereafter referred to as “appliances“. This European Standard applies 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 appl
34、iances designed for outdoor installation. For indoor appliances provision of the heated 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 ap
35、pliances; c) appliances fitted with gas boosters; d) appliances fitted with air/gas ratio 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.
36、 This European Standard is applicable to appliances which are intended to be type tested. 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 t
37、his document. For dated references, only the edition cited applies. For undated references, 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 pre
38、ssures up to and including 500 mbar EN 126:2004, Multifuctional controls for gas burning 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 b
39、urners and gas burning appliances with or without fans EN 437:2003, Test gases - Test 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 designa
40、tion EN 10226-2:2005, Pipe threads where pressure tight joints are made on the threads - 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 DIN EN 525
41、:2009-11 EN 525:2009 (E) 6 EN 60335-2-102:2006, Electrical equipment of non-electric heating 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: Ge
42、neral requirements EN 60730-2-1:1997, Automatic electrical controls for household and similar 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 requirem
43、ents for temperature-sensing controls EN 61058-1:2002, Switches for appliances - Part 1: General 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 t
44、hreads where pressure-tight joints are not made on the threads - Part 1: Dimensions, tolerances 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 - Cal
45、culation of the calorific value, density, relative density and Wobbe index from composition (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
46、ISO 7005-3:1988, Metallic flanges - Part 3: Copper alloy and composite flanges 3 Terms and 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 ventila
47、tion of a building other than a residential dwelling 3.1.2 forced convection air heater appliance 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 c
48、onvection air heater forced convection air heater in which the products of combustion mix with the heated air being supplied to the space 3,1,4 high temperature direct fired forced convection air heater DIN EN 525:2009-11 EN 525:2009 (E) 7 direct fired forced convection air heater designed to operat
49、e with an air temperature rise through the appliance greater than 60 K 3.1.5 low temperature direct 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 returned
