1、March 2008DEUTSCHE NORM English price group 21No 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!$MP“1424594www
2、.din.deDDIN EN 449Specification for dedicated liquefied petroleum gas appliances Domestic flueless space heaters (including diffusive catalyticcombustion heaters) (includes Amendment A1:2007)English version of DIN EN 449:2008-03Festlegungen fr Flssiggasgerte Abzuglose Haushaltsraumheizgerte (einschl
3、ielich Heizgerte mit diffusiver katalytischerVerbrennung) (enthlt nderung A1:2007)Englische Fassung DIN EN 449:2008-03SupersedesDIN EN 449:2003-11www.beuth.deDocument comprises 57 pagesDIN EN 449:2008-03 2 Start of validity This standard is valid from 1 March 2008. National foreword This standard in
4、cludes safety requirements in clauses 5, 6, 7 and 8. This standard has been prepared by Technical Committee CEN/TC 181 “Dedicated liquefied petroleum gas appliances” (Secretariat: AFNOR, France). The responsible German body involved in its preparation was the Normenausschuss Gastechnik (Gas Technolo
5、gy Standards Committee), Technical Committee Flssiggas. This standard has been included in the body of Codes of practice for gas issued by the DVGW Deutscher Verein des Gas- und Wasserfaches e.V. (German Association of Gas and Water Engineers). It should be noted that, in Germany, gas appliances com
6、plying with this standard are to be supplied complete with suitable and permitted flexible hose or tubing and regulator (see note to Table A.3). The start and finish of text introduced or altered by amendment is indicated in the text by tags ! “. The DIN Standards corresponding to the International
7、Standards referred to in clause 2 of the EN are as follows: ISO 7-1 DIN EN 10226-1 ISO 228-1 DIN ISO 228-1 CR 1472:1997 DIN-Fachbericht 68 CR 1749 DIN-Fachbericht 117 Amendments This standard differs from DIN EN 449:2003-11 as follows: a) The requirements relating to the maximum wall temperatures in
8、side the LPG container installation compartment have been revised, in particular to take account of composite LPG containers. Previous editions DIN 30686: 1988-11 DIN EN 449: 1996-05, 2003-11 DIN EN 449:2008-03 3 National Annex NA (informative) Bibliography DIN EN 10226-1, Pipe threads where pressur
9、e tight joints are made on the threads Part 1: Taper external threads and parallel internal threads Dimensions, tolerances and designation DIN ISO 228-1, Pipe threads where pressure-tight joints are not made on the threads Part 1: Dimensions, tolerances and designation DIN-Fachbericht 68, General gu
10、idance for the marking of gas appliances DIN-Fachbericht 117, European scheme for the classification of gas appliances according to the method of evacuation of the products of combustion (types) DIN EN 449:2008-03 4 This page is intentionally blank EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM E
11、N 449:2002+A1 November 2007 ICS 97.100.20 Supersedes EN 449:2002 English Version Specification for dedicated liquefied petroleum gas appliances - Domestic flueless space heaters (including diffusive catalytic combustion heaters) Spcifications pour les appareils fonctionnant exclusivement aux gaz de
12、ptrole liqufis - Appareils de chauffage domestiques non raccords (y compris les appareils de chauffage combustion catalytique diffusive)Festlegungen fr Flssiggasgerte - Abzuglose Haushaltsraumheizgerte (einschlielich Heizgerte mit diffusiver katalytischer Verbrennung) This European Standard was appr
13、oved by CEN on 9 September 2002 and includes Amendment 1 approved by CEN on 27 September 2007. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-da
14、te lists and bibliographical references concerning such national standards 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 version in any other language made by translation under t
15、he responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hun
16、gary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Cent
17、re: rue de Stassart, 36 B-1050 Brussels 2007 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 449:2002+A1:2007: E2 Contents Foreword3 1 Scope 4 2 Normative references 4 3 Terms and definitions .5 4 Classification10 5 Safety and cons
18、tructional requirements.11 6 Test methods21 7 Marking and instructions 37 Annex A (normative) Special national conditions 43 Annex B (normative) Vitiation room.49 Annex C (informative) Air supply and ventilation Using recommendations.51 Annex ZA (informative) Clauses of this European Standard addres
19、sing essential requirements or other provisions of EU Directives52 Page EN 449:2002+A1:2007 (E) DIN EN 449:2008-03 EN 449:2002+A1:2007 (E) 3 Foreword This document (EN 449:2002+A1:2007) has been prepared by Technical Committee CEN/TC 181 “Dedicated liquefied petroleum gas appliances“, the secretaria
20、t 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 May 2008, and conflicting national standards shall be withdrawn at the latest by May 2008. This document supersedes !EN
21、 449:2002“. This document includes Amendment 1, approved by CEN on 2007-09-27. The start and finish of text introduced or altered by amendment is indicated in the text by tags !“. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Asso
22、ciation, and supports essential requirements of EU Directive(s). For relationship with EU Directive(s), see informative Annex ZA, which is an integral part of this document. !deleted text“ Items relating to quality assurance systems, production testing and particularly certificates of conformity of
23、auxiliary equipment are not covered by this standard. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, Franc
24、e, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. DIN EN 449:2008-03 EN 449:2002+A1:2007 (E) 4 1 Scope This European Standard specifies the
25、 requirements, the test methods and the marking of domestic flueless space heaters, including diffusive catalytic combustion heaters, having a nominal heat input (Hs), not exceeding 4,2 kW burning 3rd family gases at nominal operating pressures not exceeding 50 mbar, referred to in the text as appli
26、ances. This European Standard is applicable to the following types of appliances: a) fixed heaters burning commercial butane and/or commercial propane; b) portable or mobile heaters burning either commercial butane, or, commercial butane and commercial propane including those that incorporate a LPG
27、container installation compartment for a transportable refillable liquefied petroleum LPG container. There are no specific thermal efficiency requirements appropriate to these types of appliance as: c) all the heat produced by the combustion process is released into the space to be heated; d) the re
28、quirements with regard to the combustion performance, which is a safety matter, ensure the effective burning of the fuel gas. It does not cover appliances incorporating electrically operated gas control systems. Annex A gives the details of the categories of appliances marketed in various countries.
29、 Requirements for appliances given in this standard assume that the supply of gas from the container will be governed by a pressure regulator having a maximum nominal outlet pressure of 50 mbar. This European Standard does not cover LPG containers for liquefied petroleum gas neither their associated
30、 regulator nor tubing and flexible hoses which shall comply with national requirements in force. This European Standard only covers type testing. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition c
31、ited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 125, Flame supervision devices for gas burning appliances - Thermo-electric flame supervision devices EN 126, Multifunctional controls for gas burning appliances EN 161, Automat
32、ic shut-off valves for gas burners and gas appliances EN 257, Mechanical thermostats for gas burning appliances EN 437:1993, Test gases - Test pressures - Appliance categories EN 549, Rubber materials for seals and diaphragms for gas appliances and gas equipment EN 751-1, Sealing materials for metal
33、lic threaded joints in contact with 1st, 2nd and 3rd family gases and hot water - Part 1: Anaerobic jointing compounds EN 751-2, Sealing materials for metallic threaded joints in contact with 1st, 2nd and 3rd family gases and hot water - Part 2: Non-hardening jointing compounds DIN EN 449:2008-03 EN
34、 449:2002+A1:2007 (E) 5 EN 1057, Copper and copper alloys - Seamless, round copper tubes for water and gas in sanitary and heating applications EN 60335-1:1994, Safety of household and similar electrical appliances - Part 1: General requirements (IEC 60335-1:1991, modified) EN ISO 3166-1, Codes for
35、the representation of names of countries and their subdivisions - Part 1: Country codes (ISO 3166-1:1997) ISO 7-1, Pipe threads where pressure-tight joints are made on the threads - Part 1: Dimensions, tolerances and designation ISO 228-1, Pipe threads where pressure-tight joints are not made on the
36、 threads - Part 1: Dimensions, tolerances and designation CR 1472:1997, General guidance for the marking of gas appliances CR 1749, European scheme for the classification of gas appliances according to the method of evacuation of the products of combustion (Types) 3 Terms and definitions For the pur
37、poses of this European Standard, the following terms and definitions apply. 3.1 appliance incorporating a LPG container appliance which includes a LPG container installation compartment 3.2 auxiliary equipment tap and cocks; flame supervision devices; thermostats; multifunctional controls; automatic
38、 shut-off valves. 3.3 burner component that allows the gas to burn. Two types are distinguished: non-aerated burner: in which the air for combustion is entrained entirely at the burner outlet or at the burner surface for catalytic burners; aerated burner in which part of the air for combustion, term
39、ed primary air, is entrained by the gas flow and mixed before the burner outlet. The remainder of the air drawn in at the port, termed secondary air, is drawn in after the burner outlet or at the burner surface for catalytic burners DIN EN 449:2008-03 EN 449:2002+A1:2007 (E) 6 3.4 heat input quantit
40、y of energy used divided by time corresponding to the volumetric or mass flow rates, the calorific value used being either the net or gross calorific value NOTE Q Unit : kilowatt (kW) EN 437:1993 3.5 nominal heat input value of the heat input declared by the manufacturer NOTE QnEN 437:1993 3.6 volum
41、e rate volume of gas consumed by the appliance during continuous operation divided by the operating time. NOTE V Units: cubic metre per hour (m3/h), litre per min (l/min), cubic decimetre per hour (dm3/h) or cubic decimetre per second (dm3/s) EN 437:1993 3.7 mass rate mass of gas consumed by the app
42、liance during continuous operation divided by the operating time NOTE M Units : kilogram per hour (kg/h), or gram per hour (g/h) EN 437:1993 3.8 flame lift phenomenon characterized by the partial or total movement of the base of the flame away from the burner port 3.9 relative density ratio of the m
43、asses of equal volumes of dry gas and dry air at the same conditions of temperature and pressure : 15C (or 0C), 1 013, 25 mbar NOTE d EN 437:1993 3.10 ignition device device to ignite one or more burners directly or indirectly, for instance through a flash tube it may be either electric (resistance,
44、 spark, etc.) or thermal (pilot, etc.) DIN EN 449:2008-03 EN 449:2002+A1:2007 (E) 7 3.11 flame supervision device device including a sensing element which causes the gas supply to a burner to be opened or closed according to the presence or absence of the flame which activates the sensing element 3.
45、12 Wobbe number ratio of the calorific value of a gas per unit volume and the square root of its relative density under the same reference conditions. The Wobbe index is said to be gross or net according to whether the calorific value used is the gross or net calorific value. NOTE gross Wobbe index
46、: Ws; net Wobbe index : Wi. Units: either megajoule per cubic metre (MJ/m3) of dry gas at the reference conditions, or megajoule per kilogram (MJ/kg) of dry gas EN 437:1993 3.13 injector component part that admits the gas into an aerated burner. There are two types of injectors: calibrated injector:
47、 where the section of the outlet orifice is fixed ; adjustable injector: where the section of the outlet orifice is variable 3.14 sound mechanical joint connection device assuring soundness in an assembly made up of several parts, generally of metal it can be: a conical joint; an O-ring joint; a fla
48、t-faced joint. 3.15 tap handle manually operated component used to open, partially open, or close a tap 3.16 primary air adjuster device allowing the primary aeration of a burner to be set at a predetermined value according to the supply conditions. The operation of changing the setting of this devi
49、ce is termed the adjustment of primary air 3.17 gas rate adjuster device allowing the gas rate to a burner to be set at a predetermined value according to the supply conditions. It often consists of a screw, termed a throttle screw or an adjustment screw. The operation of changing the setting of this device is termed the adjustment of the gas rate DIN EN 449:2008-03 EN 449:2002+A1:2007 (E) 8 3.18 gross calorific value Hsquantity of heat produced by the complete combustion, at constant pre
