1、BRITISH STANDARDBS EN 449:2002 +A1:2007Specification for dedicated liquefied petroleum gas appliances Domestic flueless space heaters (including diffusive catalytic combustion heaters)ICS 97.100.20g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59
2、g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58BS EN 449:2002+A1:2007This British Standard was published under the authority of the Standards Policy and Strategy Committee on 4 December 2002 BSI 2008ISBN 978 0 580 62033 1National forewordThis British
3、 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 It supersedes BS EN 449:2002 which is withdrawn.The start and finish of text introduced or altered by amendment is indicated in the text by tags.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 carry the number of the CEN amendment. For example, text al
4、tered by CEN amendment A1 is indicated by !“ .The UK participation in its preparation was entrusted to Technical Committee GSE/24, Dedicated LPG appliances.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include a
5、ll the necessary provisions of a contract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunity from legal obligations.Amendments/corrigenda issued since publicationDate Comments30 June 2008 Implementation of CEN amendment A1:2007EUROPEAN STANDA
6、RD NORME EUROPENNE EUROPISCHE NORM EN 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 fo
7、nctionnant exclusivement aux gaz de 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 Verbrenn
8、ung) This European Standard was approved 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 stand
9、ard without any alteration. Up-to-date 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
10、language made by translation under the 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, F
11、inland, 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 STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHE
12、S KOMITEE FR NORMUNG Management Centre: 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: EEN 449:2002+A1:2007 (E) 2 Contents page Foreword3 1 Scope 4 2 Normative references
13、4 3 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.5
14、1 Annex ZA (informative) Clauses of this European Standard addressing essential requirements or other provisions of EU Directives52 BS EN 449:2002+A1:2007EN 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 pe
15、troleum 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, at the latest by May 2008, and conflicting national standards shall be withdrawn at the latest by
16、 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 text by tags !“. This document has been prepared under a mandate given to CEN by the European Comm
17、ission 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 document. !deleted text“ Items relating to quality assurance systems, production testing and part
18、icularly 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 countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Rep
19、ublic, 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 United Kingdom. BS EN 449:2002+A1:2007EN 449:2002+A1:2007 (E) 4 1
20、Scope This European Standard specifies the 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
21、 50 mbar, referred to in the text as appliances. 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 propa
22、ne including those that incorporate a LPG 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 relea
23、sed into the space to be heated; d) the requirements 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
24、 appliances marketed in various countries. 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 liquef
25、ied petroleum gas neither their associated 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
26、. For dated references, only the edition cited 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
27、for gas burning appliances EN 161, Automatic 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 equip
28、ment EN 751-1, Sealing materials for metallic 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-hardenin
29、g jointing compounds BS EN 449:2002+A1:2007EN 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 6033
30、5-1:1991, 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 wh
31、ere pressure-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 combustio
32、n (Types) 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; the
33、rmostats; 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
34、in which 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+A1:2007
35、EN 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 NOTE Q Unit : kilowatt (kW) EN 437:1993 3.5 nominal heat input value of the heat input declared
36、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 min (l/min), cubic decimetre per hour (dm3/h) or cubic decimetre per second (dm3/s) EN 437:19
37、93 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 phenomenon characterized by the partial or total movement of the base of the flame away from the
38、 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 device device to ignite one or more burners directly or indirectly, for instance through a f
39、lash tube it may be either electric (resistance, spark, etc.) or thermal (pilot, etc.) BS EN 449:2002+A1:2007EN 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
40、of the flame which activates the sensing element 3.12 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 gr
41、oss or net calorific value. NOTE gross Wobbe index : 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. The
42、re are two types of injectors: calibrated injector: 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
43、 it can be: a conical joint; an O-ring joint; a flat-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.
44、 The operation of changing the setting of this device 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
45、screw. The operation of changing the setting of this device is termed the adjustment of the gas rate BS EN 449:2002+A1:2007EN 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,
46、the water 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
47、 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 supply to the various burners 3.22 soft solder solder for which the lowest temperat
48、ure of the melting range, after application, is less than 450 C 3.23 stability of flames conditions of the flames at the burner ports when the phenomena of flame lift or light back do not occur 3.24 thermostat device to maintain automatically a selected constant temperature. It may include a graduat
49、ed scale for the selection of the temperature 3.25 closed fronted fire appliance in which the glowing area is substantially covered by means of a transparent or translucent screen 3.26 cold condition condition of the appliance required for some tests and obtained by allowing the unlit appliance to attain equilibrium at room temperature 3.27 hot condition condition of the appliance required for some tests and obtained by heating for one hour at the normal test pressure 3.28 fixed heater heater designed to be
