BS 5871-4-2007 Specification for the ninstallation and nmaintenance of gas fires nconvector heaters nfire back boilers and ndecorative fuel effect nappliances – nPart 4 Independent.pdf

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1、BS 5871-4:2007Specification for the installation and maintenance of gas fires, convector heaters, fire/back boilers and decorative fuel effect appliances Part 4: Independent gas-fired flueless fires, convector heaters and heating stoves of nominal heat input not exceeding 6 kW (2nd and 3rd family ga

2、ses) ICS 97.100.20NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBRITISH STANDARDPublishing and copyright informationThe BSI copyright notice displayed in this document indicates when the document was last issued. BSI 2007ISBN 978 0 580 53949 7The following BSI references rela

3、te to the work on this standard:Committee reference GSE/30Draft for comment 06/30096954 DCPublication historyFirst published July 2007Amendments issued since publicationAmd. no. Date Text affectedBS 5871-4:2007 BSI 2007 iBS 5871-4:2007ContentsForeword iii1 Scope 12 Normative references 23 Terms and

4、definitions 34 Exchange of information and planning 45 Appliances 76 Materials and components 87 Location 108 Appliance sizing and ventilation 109 Appliance fixing 1310 Fire precautions 1511 Gas supply 1912 Electricity supplies and wiring 2113 Commissioning 2114 Instructions and use of fireguards 22

5、15 Advice to be given to the user 22AnnexesAnnex A (informative) Guidance on ventilation requirements for flueless gas fires 25Bibliography 29List of figuresFigure 1 Examples of flueless appliances 9Figure 2 General layout of a raised builders opening installation (hole-in-the-wall fireplace) 18Figu

6、re 3 Typical unconcealed gas supply system to a gas fire 20Summary of pagesThis document comprises a front cover, an inside front cover, pages i to iv, pages 1 to 30, an inside back cover and a back cover.BS 5871-4:2007ii BSI 2007 This page deliberately left blank BSI 2007 iiiBS 5871-4:2007ForewordP

7、ublishing informationThis part of BS 5871 was published by BSI and comes into effect on publication of BS EN 14829;1)the intervening time constitutes the implementation period of BS 5871-4. It was prepared by GSE/30/-/4, under the authority of GSE/30, Gas Installations (1st, 2nd and 3rd family gases

8、). A list of organizations represented on this committee can be obtained on request to its secretary. This part of BS 5871 covers the installation of independent gas-fired flueless fires, convector heaters and heating stoves of nominal heat input not exceeding 6 kW (2nd and 3rd family gases).Install

9、ation of convector heaters in greenhouses as greenhouse heaters is only covered in respect of single appliance installations. BS 5871, Specification for the installation and maintenance of gas fires, convector heaters, fire/back boilers and decorative fuel effect gas appliances, consists of the foll

10、owing parts: BS 5871-1: Gas fires, convector heaters, fire/back boilers and heating stoves (2nd and 3rd family gases). BS 5871-2: Inset live fuel effect gas fires of heat input not exceeding 15 kW and fire/back boilers (2nd and 3rd family gases). BS 5871-3: Decorative fuel effect gas appliances of h

11、eat input not exceeding 20 kW (2nd and 3rd family gases). BS 5871-4: Independent gas-fired flueless fires, convector heaters and heating stoves of nominal heat input not exceeding 6 kW (2nd and 3rd family gases).It should be noted that the only appliances covered by this part of BS 5871 are those th

12、at are “CE” marked. However, BS 5871-4 may also be referred to for the installation of used appliances, where appropriate, providing the manufacturers instructions are available. In such circumstances, the installer should satisfy himself that the appliance is safe in construction and condition, and

13、 can be used without constituting a danger. Attention is drawn to Clause 5 concerning this particular aspect.This standard allows manufacturers instructions to specify a method of installation, testing, commissioning or maintenance which differs in points of detail from this standard. This reference

14、 to manufacturers instructions is allowed only where it will result in at least an equivalent level of safety. In such circumstances, it is important that the manufacturers instructions are followed. Although BS 5871-4 is an appliance installation standard, the drafting panel has decided to include

15、an informative Annex A providing guidance for notified bodies and manufacturers on assessing ventilation requirements for flueless gas fires.1)Users will be informed by BSI of the publication of BS EN 14829.BS 5871-4:2007iv BSI 2007Presentational conventionsThe provisions of this standard are presen

16、ted in roman (i.e. upright) type. Its requirements are expressed in sentences in which the principal auxiliary verb is “shall”.Commentary, explanation and general informative material is presented in notes in smaller italic type.To comply with this standard, the user has to comply with all its requi

17、rements. The user may depart from recommendations, but this would be the users own responsibility and they would be expected to have a good reason for doing so.Contractual and legal considerationsThis publication does not purport to include all the necessary provisions of a contract. Users are respo

18、nsible for its correct application.Compliance with a British Standard cannot confer immunity from legal obligations. In particular, attention is drawn to the following statutory regulations. The Gas Safety (Installation and Use) Regulations 1998 1The Gas Safety (Installation and Use) Regulations (No

19、rthern Ireland) 2004 2The Gas Appliances (Safety) Regulations 1995 3The Building Regulations 2000, as amended 4The Building (Scotland) Regulations 2004 5The Building Regulations (Northern Ireland) Statutory Rules 2000, as amended 6The Gas Safety (Application) (Isle of Man) Order 1996 7The Health and

20、 Safety (Gas) (Guernsey) Ordinance 2006 8 BSI 2007 1BS 5871-4:20071 ScopeThis part of BS 5871 specifies installation and maintenance requirements for independent gas-fired flueless fires, convector heaters and heating stoves of nominal heat input not exceeding 6 kW burning 2nd and 3rd family gases f

21、or the purpose of heating rooms or internal spaces in domestic (see note 3) or commercial premises. Specifically, it covers:a) fixed appliances that satisfy all the requirements of BS EN 14829;b) fixed appliances that satisfy the combustion requirements of BS EN 14829;c) convector heaters of nominal

22、 heat input not exceeding 4.2 kW in the form of greenhouse heaters in respect of single appliance installations.NOTE 1 Appliances a) and b) are only intended as a secondary heat source (see Commentary and Recommendations on 4.2). The heat input and ventilation, fixing and gas supply for convector he

23、aters in the form of greenhouse heaters are specified in 8.4, 9.4 and Clause 11, respectively. This part of BS 5871 covers the selection of a suitable appliance, room sizing and ventilation requirements and other measures necessary to ensure a safe installation. NOTE 2 Heat inputs in this document a

24、re based on net calorific value. See also Commentary and Recommendations on Clause 5, item b).NOTE 3 As well as normally constructed dwellings, domestic premises include any permanently sited caravans, holiday homes and residential park homes. (See IGE/UP/8 9.) NOTE 4 Convector heaters in the form o

25、f greenhouse heaters are available in two forms, those which are freestanding and those which are intended to be fixed to a wall or floor.This standard is not applicable to: a) mobile and portable appliances conforming to BS EN 449;b) appliances in motor caravans and touring caravans;c) appliances i

26、n boats;d) installations in agricultural premises; ore) installations in transportable accommodation units.NOTE 5 For the maintenance of existing installations of 3rd family flueless appliances in boats, see PD 5482-3.BS 5871-4:20072 BSI 20072 Normative referencesThe following normative documents co

27、ntain provisions which, through reference in this text, constitute provisions of this British Standard. For dated references, subsequent amendments to, or revisions of, any of these publications do not apply. For undated references, the latest edition of the publication referred to applies.BS 669-1,

28、 Flexible hoses, end fittings and sockets for gas burning appliances Part 1: Specification for strip-wound metallic flexible hoses, covers, end fittings and sockets for domestic appliances burning 1st and 2nd family gasesBS 5440-2, Installation and maintenance of flues and ventilation for gas applia

29、nces of rated input not exceeding 70 kW (1st, 2nd and 3rd family gases) Part 2: Specification for installation and maintenance of ventilation for gas appliancesBS 5482-1, Domestic butane- and propane-gas-burning installations Part 1: Installations at permanent dwellings, residential park homes and c

30、ommercial premises, with installation pipework sizes not exceeding DN 25 for steel and DN 28 for corrugated stainless steel or copperBS 5482-2, Domestic butane- and propane-gas-burning installations Part 2: Installations in caravans and non-permanent dwellingsBS 6891, Installation of low pressure ga

31、s pipework of up to 35 mm (R1) in domestic premises (2nd family gas) SpecificationBS 7671, Requirements for electrical installations IEE wiring regulationsBS 7967-2:2005, Carbon monoxide in dwellings and the combustion performance of gas-fired appliances Part 2: Guide for using electronic portable c

32、ombustion gas analysers in the measurement of carbon monoxide and the determination of combustion performanceBS 7977-1:2002, Specification for safety and rational use of energy of domestic gas appliances Part 1: Radiant convectorsBS 8423, Fireguards for fires and heating appliances for domestic use

33、SpecificationBS EN 50292, Electrical apparatus for the detection of carbon monoxide in domestic premises Guide on the selection, installation, use and maintenanceIGE/UP/2, Gas installation pipework, boosters and compressors in industrial and commercial premises BSI 2007 3BS 5871-4:20073 Terms and de

34、finitionsFor the purposes of this part of BS 5871, the following terms and definitions apply.3.1 air ventnon-adjustable purpose-provided unit/assembly designed to allow permanent ventilation 3.2 builders openingenclosure constructed by the builder to accommodate fireplace components3.3 conservatorys

35、ingle storey structure with at least half of the area of the walls and at least three-quarters of the area of the roof formed of glazing, polycarbonate sheets or similar translucent material, intended as a habitable space attached to a dwelling 3.4 convector heaterappliance that is designed to heat

36、a room mainly by the emission of air heated by convection3.5 fireguardguard conforming to BS 84233.6 fireplace openingaperture formed in the face of the builders opening, the fireplace recess, flue box or fire surround, if fitted3.7 fireplace recessrecess formed by the inclusion of fireplace compone

37、nts in the builders opening3.8 fire surroundpurpose-designed setting for a gas fire, fitted against a wall and usually incorporating a hearth3.9 flue boxnon-combustible enclosure that provides a substitute builders opening or fireplace recessNOTE It may be used either within an existing builders ope

38、ning or form part of a false chimney breast construction.3.10 flueless appliance (type A)appliance which is designed to be used without a flue and in which the products of combustion mix with the surrounding air3.11 gas fireappliance for heating one room and incorporating a radiating surface, either

39、 in the form of a radiant or an imitation fuel 3.12 greenhousebuilding with walls and roof made of glazing, polycarbonate sheets or similar translucent material for the cultivation and exhibition of plants under controlled conditionsBS 5871-4:20074 BSI 20073.13 greenhouse heaterflueless convector he

40、ater of not more than 4.2 kW specially designed for installation in a greenhouse 3.14 habitable space space intended for living, sleeping, eating or cooking3.15 heating stovefree-standing appliance designed to simulate a solid fuel burning stove3.16 imitation fuel non-combustible component supplied

41、with the appliance and designed to be in contact with gas flames3.17 installation instructionsinstructions provided by the appliance manufacturer giving detailed information and requirements on how the appliance should be installed, and checked for their validity as part of the original appliance ce

42、rtificationNOTE Such instructions should not be confused with other documents supplied by the appliance manufacturer, e.g. sales literature.3.18 internal spaceinterior space such as a hall, passageway, stairway or landing, which is not a room3.19 radiantcomponent forming part of a gas appliance and

43、designed to become incandescent when heated by a gas flame3.20 superimposed hearth slab of fire-resisting material which is either located on top of a constructional hearth or on a combustible floor, and which is designed to prevent overheating of the floor beneath the slab3.21 ventilationprocess of

44、 supplying fresh air to, and/or removing air from a room, internal space, compartment or garageNOTE The air may be used or intended to be used for purposes of combustion and maintaining air quality.4 Exchange of information and planning4.1 GeneralPersons carrying out the work shall be competent.The

45、installation work shall be carried out by a business or self-employed person, who is a member of a class of persons approved by the Health and Safety Executive (HSE) as required by the Gas Safety (Installation and Use) Regulations 1. BSI 2007 5BS 5871-4:2007Persons who design the installation shall

46、have a knowledge and understanding of the standards and regulations that apply to ensure that the completed plans will produce a safe and satisfactory installation.COMMENTARY AND RECOMMENDATIONS ON 4.1 At the time of publication, the body with HSE approval to operate and maintain a register of busin

47、esses who are “members of a class of persons” is CORGI.Persons deemed competent to carry out gas work are those who hold a certificate of gas safety competence acceptable to CORGI, which includes (without limitation) the Accredited Certification Scheme (ACS) and the Gas Services S/NVQ that has been

48、aligned with ACS (for electrical work, see Commentary and Recommendations on 12.1).4.2 Design considerations for installations other than in a greenhouseFor installations other than in a greenhouse, particular matters that shall be considered are: a) potential for problems of condensation;b) whether

49、 the appliance input is such that the appliance may be installed in its intended location in conformity with the input and ventilation requirements of Clause 8;c) presence of any flues which might have an adverse effect on the appliance performance unless closed off (see 9.1);d) presence of other heating appliances in the room space;e) position of heating appliances in relation to probable position of fixtures, furniture and curtains;f) availability of gas supplies;g) a