1、Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 26/08/2008 04:02, Uncontrolled Copy, (c) BSIg49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58a
2、ppliances Domestic flueless space heaters (including diffusive catalytic combustion heaters)ICS 97.100.20Specification for dedicated liquefied petroleum gas BRITISH STANDARDBS EN 449:2002 +A1:2007BS EN 449:2002+A1:2007Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 26/08/2008 04:02, Uncontrol
3、led Copy, (c) BSIThis British Standard was published under the authority of the Standards Policy and Strategy Committee on 4 December 2002 BSI 2008ISBN 978 0 580 62033 1Amendments/corrigenda issued since publicationDate Comments30 June 2008 Implementation of CEN amendment A1:2007GSE/24, Dedicated LP
4、G appliances.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application.Compliance with a British Standard cannot confer i
5、mmunity from legal obligations.National forewordThis British Standard is the UK implementation of EN 449:2002+A1:2007. It supersedes BS EN 449:2002 which is withdrawn.The start and finish of text introduced or altered by amendment is indicated in the text by tags. Tags indicating changes to CEN text
6、 carry the number of the CEN amendment. For example, text altered by CEN amendment A1 is indicated by !“ .The UK participation in its preparation was entrusted to Technical Committee EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 449:2002+A1 November 2007 ICS 97.100.20 Supersedes EN 449:2002 E
7、nglish 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 ptrole liqufis - Appareils de chauffage domestiques non raccords (
8、y compris les appareils de chauffage combustion catalytique diffusive)Festlegungen fr Flssiggasgerte - Abzuglose Haushaltsraumheizgerte (einschlielich Heizgerte mit diffusiver katalytischer Verbrennung) This European Standard was approved by CEN on 9 September 2002 and includes Amendment 1 approved
9、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-date lists and bibliographical references concerning such national s
10、tandards 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 the responsibility of a CEN member into its own language and notifi
11、ed 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, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malt
12、a, 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 Centre: rue de Stassart, 36 B-1050 Brussels 2007 CEN All rights of exp
13、loitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 449:2002+A1:2007: ELicensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 26/08/2008 04:02, Uncontrolled Copy, (c) BSIEN 449:2002+A1:2007 (E) 2 Contents page Foreword3 1 Scope 4 2 Normative references 4 3
14、 Terms and definitions .5 4 Classification10 5 Safety and constructional 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 A
15、nnex ZA (informative) Clauses of this European Standard addressing essential requirements or other provisions of EU Directives52 BS EN 449:2002+A1:2007Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 26/08/2008 04:02, Uncontrolled Copy, (c) BSIEN 449:2002+A1:2007 (E) 3 Foreword This document (
16、EN 449:2002+A1:2007) has been prepared by Technical Committee CEN/TC 181 “Dedicated liquefied petroleum gas appliances“, the secretariat 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, a
17、t the latest by May 2008, and conflicting national standards shall be withdrawn at the latest by May 2008. This document supersedes !EN 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 te
18、xt by tags !“. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, 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 d
19、ocument. !deleted text“ Items relating to quality assurance systems, production testing and particularly certificates of conformity of auxiliary equipment are not covered by this standard. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countr
20、ies 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, Portugal, Romania, Slovakia, Slovenia, Spain
21、, Sweden, Switzerland and the United Kingdom. BS EN 449:2002+A1:2007Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 26/08/2008 04:02, Uncontrolled Copy, (c) BSIEN 449:2002+A1:2007 (E) 4 1 Scope This European Standard specifies the requirements, the test methods and the marking of domestic flu
22、eless 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 appliances. This European Standard is applicable to the following ty
23、pes 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 container installation compartment for a transportable refillab
24、le 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 requirements with regard to the combustion performance, which is
25、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. Requirements for appliances given in this standard assume that
26、 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 regulator nor tubing and flexible hoses which shall comply wit
27、h 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 cited applies. For undated references, the latest edition of the
28、 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, Automatic shut-off valves for gas burners and gas appliances EN 257, M
29、echanical 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 metallic threaded joints in contact with 1st, 2nd and 3rd family gas
30、es 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 BS EN 449:2002+A1:2007Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 26/08/2
31、008 04:02, Uncontrolled Copy, (c) BSIEN 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 60335-1:19
32、91, modified) EN ISO 3166-1, Codes for 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 pr
33、essure-tight joints are not made on the 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 (Typ
34、es) 3 Terms and definitions For the purposes 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; thermosta
35、ts; multifunctional controls; automatic 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 whi
36、ch part of the air for combustion, termed 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 BS EN 449:2002+A1:2007Licens
37、ed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 26/08/2008 04:02, Uncontrolled Copy, (c) BSIEN 449:2002+A1:2007 (E) 6 3.4 heat input quantity 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 NOT
38、E 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 volume 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
39、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 appliance 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 phe
40、nomenon 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 masses 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
41、 device device to ignite one or more burners directly or indirectly, for instance through a flash tube it may be either electric (resistance, spark, etc.) or thermal (pilot, etc.) BS EN 449:2002+A1:2007Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 26/08/2008 04:02, Uncontrolled Copy, (c) BS
42、IEN 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 3.12 Wobbe number ratio of the calorific value of a gas per
43、 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 : Ws; net Wobbe index : Wi. Units: either megajoule per c
44、ubic 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: where the section of the outlet orifice is fixed ; adjus
45、table 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 flat-faced joint. 3.15 tap handle manually operated componen
46、t 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 device is termed the adjustment of primary air 3.17 gas rate
47、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 BS EN 4
48、49:2002+A1:2007Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 26/08/2008 04:02, Uncontrolled Copy, (c) BSIEN 449:2002+A1:2007 (E) 8 3.18 gross calorific value Hsquantity of heat produced by the complete combustion, at constant pressure, of unit volume or mass of the considered gas, the water
49、 produced by the combustion being condensed. It is expressed in megajoules referred either to per cubic meter of dry gas measured at 15C at a pressure of 1 013,25 mbar or to per kg of dry gas 3.19 gas supply pressure difference between the static pressure measured at the inlet connection of the appliance and the atmospheric pressure 3.20 light back phenomenon characterized by the return of the flame inside the body of the burner 3.21 tap device to adjust the heat input during use and/or isolate the gas suppl
