1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS 6230:2011Specification for installationand maintenance of gasfired forced convection airheaters for commercial andindustrial space heating(2nd and 3rd family gases)Publishing
2、and copyright informationThe BSI copyright notice displayed in this document indicates when the documentwas last issued. BSI 2011ISBN 978 0 580 71929 5ICS 97.100.20The following BSI references relate to the work on this standard:Committee reference GSE/30Draft for comment 11/30229803 DCPublication h
3、istoryFirst published August 1982Second edition June 1991Third edition October 2005Fourth (present) edition July 2011Amendments issued since publicationDate Text affectedBS 6230:2011 BRITISH STANDARDContentsForeword ii1 Scope 12 Normative references 13 Terms and definitions 24 Selection of equipment
4、 and pre-installation 35 Installation 116 Post-installation 28AnnexesAnnex A (informative) Occupational exposure limit 30Annex B (informative) Checks to be carried out prior to commissioning 30Annex C (informative) Typical live run checks 31Bibliography 32List of figuresFigure1TypeB1heaters 15Figure
5、2TypeB2heaters 16Figure3TypeC1heaters 17Figure4TypeC3heaters 18List of tablesTable 1 Competence requirements by country/territory 4Table 2 Registration and approval bodies by country/territory 5Table 3 Air heater categories/adjustment for UK gas supply conditions 7Table 4 Minimum air vent free area
6、for room-sealed type C1or type C3appliances installed in a plant room or enclosure 18Table A.1 Occupational exposure limits 30Summary of pagesThis document comprises a front cover, an inside front cover, pages i to iv,pages 1 to 34, an inside back cover and a back cover.BRITISH STANDARD BS 6230:2011
7、 BSI 2011 iForewordPublishing informationThis British Standard is published by BSI and came into effect on 31 July 2011. Itwas prepared by Subcommittee GSE/30/-/14, Forced convection air heaters forcommercial and industrial space heating (60 kW2 MW), under the authority ofTechnical Committee GSE/30,
8、 Gas installations (1st, 2nd and 3rd family gases).A list of organizations represented on this committee can be obtained onrequest to its secretary.SupersessionThis British Standard supersedes BS 6230:2005, which is withdrawn.Information about this documentThis British Standard allows manufacturers
9、instructions to specify a method ofinstallation, testing, commissioning or maintenance which differs in points ofdetail from this standard. This reference to manufacturers instructions isallowed only where it results in at least an equivalent level of safety. In suchcircumstances, it is important th
10、at the manufacturers instructions are followed.In particular, attention is drawn to the following regulations.a) The Gas Appliances (Safety) Regulations 1. This British Standard onlyapplies to appliances falling within the scope of these regulations.b) The Gas Safety (Installation and Use) Regulatio
11、ns 1998 2.These control all aspects of the ways in which gas-fired appliances and systemsmay be installed, maintained and used, mainly in domestic and commercialpremises, and the classes of persons who may undertake gas work.NOTE 1 These regulations currently do not apply to industrial premises, exc
12、eptthose parts used for domestic purposes and sleeping accommodation. Gas Safety (Installation and Use) Regulations 1998 2, as amended and appliedby the Isle of Man Gas Safety (Application) Order 1996 3. Gas Safety (Installation and Use) (Northern Ireland) Regulations 2004 4. Health and Safety (Gas)
13、 (Guernsey) Ordinance 2006 5.NOTE 2 Legislation can vary nationally or under local authorities. Information andadvice can be obtained from regulating authorities such as the HSE, the EnvironmentAgency and local authorities. Further advice can be sought, for example, from therelevant professional bod
14、ies and industry associations.c) The Building Regulations (for the appropriate legislative region) 6, 7, 8.NOTE 3 These control work carried out in the construction of new buildings or theextension and/or refurbishment of existing buildings. Detailed advice for Englandand Wales is given in approved
15、documents 9, 10 and for Northern Ireland, intechnical booklets 11, 12. The Building Scotland Regulations 2010 8 areaccompanied by methods that are deemed to satisfy them.d) The Water Supply (Water fittings) Regulations 1999 13.e) The Health and Safety at Work etc. Act 1974 14.f) The Electricity at W
16、ork Regulations 1989 15.Presentational conventionsThe provisions of this standard are presented in roman (i.e. upright) type. Itsrequirements are expressed in sentences in which the principal auxiliary verb is“shall”.BRITISH STANDARDBS 6230:2011ii BSI 2011Commentary, explanation and general informat
17、ive material is presented insmaller italic type, and does not constitute a normative element.Contractual and legal considerationsThis publication does not purport to include all the necessary provisions of acontract. Users are responsible for its correct application.Compliance with a British Standar
18、d cannot confer immunity from legalobligations.BRITISH STANDARD BS 6230:2011 BSI 2011 iiiBRITISH STANDARDBS 6230:2011This page deliberately left blankiv BSI 20111 ScopeThis British Standard specifies the installation requirements for direct andindirect gas-fired forced convection air heaters for spa
19、ce heating that aredesigned for commercial or industrial applications and to which The GasAppliances (Safety) Regulations 1995 1 apply.This British Standard applies to the installation and maintenance of appliancesthat are designed to utilize gases of Group H of the 2nd family (e.g. naturalgas), gas
20、es of Group P of the 3rd family (e.g. propane) as well as gases ofGroup B of the 3rd family (e.g. butane) when supplied under the conditions ofthe third family pressure couple (see BS EN 437:2003+A1:2009).NOTE 1 This British Standard does not specifically cover LPG/air for which additionalrequiremen
21、ts might be necessary.This British Standard applies to the installation of direct gas-fired air heaterswithin the scope of BS EN 525:2009 and to indirect gas-fired forced convectionair heaters within the scope of BS EN 621:2009, BS EN 1020:2009 and, whereappropriate, BS EN 1196:1998. These standards
22、 cover air heaters having a netheat input not exceeding 300 kW. This standard also applies to the installationof direct gas-fired air heaters within the scope of BS 5990:2006 and to indirectgas-fired forced convection air heaters within the scope of BS 5991:1998. Thesestandards cover air heaters hav
23、ing a gross heat input greater than 330 kW butnot exceeding 2 MW (1.8 MW net).NOTE 2 For the purposes of this British Standard, installation includes design,inspection and commissioning. It is recognized that each of the tasks can beperformed at the same time by different persons.NOTE 3 The ratio of
24、 gross to net heat input is approximately 1.11:1 for Group H(natural gas), 1.09:1 for Group P (propane) and 1.08:1 for Group B (butane).NOTE 4 The ventilation rates in cm2/kW of heat input given in this British Standardare based on the net calorific value.This British Standard also applies to air he
25、aters designed to supply make-up air,door curtain heaters, transportable air heaters and heat exchange modules (i.e.air heaters without a main air movement fan) where such heat exchangemodules are used in environmental non-process applications such as air handlingunits. It also covers installation o
26、f heaters in areas where petroleum or otherflammable heavier-than-air vapours can be present (see 5.1.2).It does not include the safety requirements for installation where flammabledusts, toxic gases or flammable lighter-than-air gases might be present insignificant quantities.NOTE 5 In such cases i
27、t is important that liaison takes place with the Health andSafety Executive.This British Standard does not apply to the installation of air heaters to whichThe Gas Appliances (Safety) Regulations 1995 1 apply, or that are designed forthe sole use in domestic premises.2 Normative referencesThe follow
28、ing referenced documents are indispensable for the application ofthis document. For dated references, only the edition cited applies. For undatedreferences, the latest edition of the referenced document (including anyamendments) applies.BS 476-20, Fire tests on building materials and structures Part
29、 20: Method fordetermination of the fire resistance of elements of construction (generalprinciples)BRITISH STANDARD BS 6230:2011 BSI 2011 1BS 476-21, Fire tests on building materials and structures Part 21: Methods fordetermination of the fire resistance of loadbearing elements of constructionBS 476
30、-22, Fire tests on building materials and structures Part 22: Methods fordetermination of the fire resistance of non-loadbearing elements of constructionBS 476-23, Fire tests on building materials and structures Part 23: Methods fordetermination of the contribution of components to the fire resistan
31、ce of astructureBS 5925, Code of practice for ventilation principles and designing for naturalventilationBS 5990:2006, Specification for direct gas-fired forced convection air heaterswith rated heat inputs greater than 330 kW but not exceeding 2 MW forindustrial and commercial space heating Safety a
32、nd performance requirements(excluding electrical requirements) (2nd family gases)BS 5991:2006, Specification for indirect gas-fired forced convection air heaterswith rated heat inputs greater than 330 kW but not exceeding 2 MW forindustrial and commercial space heating Safety and performance require
33、ments(excluding electrical requirements) (2nd family gases)BS 6501-1, Metal hose assemblies Part 1: Guidance on the construction and useof corrugated hose assembliesBS 8494, Electronic portable and transportable apparatus designed to detect andmeasure carbon dioxide in indoor ambient air Requirement
34、s and test methodsBS EN 437:2003+A1:2009, Test gases Test pressures Appliance categoriesBS EN 525:2009, Non-domestic direct gas-fired forced convection air heaters forspace heating not exceeding a net heat input of 300 kWBS EN 621:2009, Non-domestic gasfired forced convection air heaters for spacehe
35、ating not exceeding a net heat input of 300 kW, without a fan to assisttransportation of combustion air and/or combustion productsBS EN 1020:2009, Non-domestic forced convection gas-fired air heaters for spaceheating not exceeding a net heat input of 300 kW incorporating a fan to assisttransportatio
36、n of combustion air or combustion productsBS EN 1196:1998, Domestic and non-domestic gas-fired air heaters Supplementary requirements for condensing air heatersBS EN 50543, Electronic portable and transportable apparatus designed to detectand measure carbon dioxide and/or carbon monoxide in indoor a
37、mbient air Requirements and test methodsBS EN 60079-10-1, Explosive atmospheres Part 10-1: Classification of areas Explosive gas atmospheresBS EN ISO 10380, Pipework Corrugated metal hoses and hose assemblies3 Terms and definitionsFor the purposes of this British Standard, the terms and definitions
38、given inBS EN 525:2009, BS EN 621:2009, BS EN 1020:2009, BS EN 1196:1998,BS 5990:2006, BS 5991:1998 and the following apply.3.1 condensing applianceair heater in which, under normal operating conditions, the water vapour in thecombustion products is totally or partially condensed in order to make us
39、e ofthe latent heat in the water vapour for heating purposesBRITISH STANDARDBS 6230:20112 BSI 20113.2 damperdevice to regulate, direct or stop the flow of gases or fluid through an openingor duct3.3 direct gas-fired air heaterforced convection air heater in which the products of combustion mix with
40、theheated air being supplied to the heated space3.4 enclosurespace in which an air heater(s) is installed which is not large enough to permitaccess for work other than maintenance3.5 forced convection air heaterappliance that provides space heating from a single source by distributingheated air by m
41、eans of an air-moving device, either through ducting or directlyinto the heated space3.6 grillenon-closable fitment for an opening through which air passes3.7 hazardous areaspace in which explosive gas-air mixtures are present or are expected to bepresent in quantities such as to require special pre
42、cautions for the construction,installation and use of electrical apparatus and fuel-fired appliancesNOTE See BS EN 60079-10-1 which also defines hazardous areas.3.8 indirect-fired air heaterforced convection air heater in which the products of combustion are separatelyvented and do not mix with the
43、heated air being supplied to the heated space3.9 plant roomroom which houses plant or machinery including air heaters3.10 plenum chamberchamber for receiving air before delivery to a heated space or a combustionsystem3.11 recirculation airair returned to a forced convection air heater from the space
44、 being heated andexpressed as a percentage of the total air delivered by the heater, under thesame temperature conditions3.12 transportable direct-fired air heatertrolley or skid-mounted direct-fired forced convection air heater designed tooperate with a maximum air temperature rise through the appl
45、iance of upto 55 K4 Selection of equipment and pre-installation4.1 Exchange of information and planning4.1.1 GeneralCOMMENTARY ON 4.1.1At the time of publication, the body with HSE approval to operate and maintain aregister of businesses who are “members of a class of persons” is the Gas SafeRegiste
46、r.BRITISH STANDARD BS 6230:2011 BSI 2011 3Persons deemed competent to carry out gas work are those who hold a certificate ofgas safety competence acceptable to Gas Safe Register, which includes (withoutlimitation) the National Accredited Certification Scheme for Individual Gas FittingOperatives and
47、the Gas Services S/NVQ that has been aligned with the NationalAccredited Certification Scheme. However, some ACOP certification for industrialinstallations might continue for some time.Persons carrying out design, installation, commissioning, servicing ormaintenance associated with and/or impacting
48、on “gas work”, “electricalinstallation”, “drainage” or “ventilation provision” for warm air heatingappliances shall be competent.NOTE 1 The qualifications which persons need to have to be deemed competent tocarry out gas work relevant to this British Standard are given in Table 1.It is a statutory r
49、equirement that all gas work be carried out by a business orself-employed person(s) that is a member of a “class of persons” registered witha registration body which has been approved by an approval body to operateand maintain such a register.NOTE 2 The statutory regulations, registration bodies and approval bodiesapplicable to Great Britain, the Isle of Man, Northern Ireland and Guernsey are givenin Table 2.4.1.2 Design considerationsThe design shall be such that the installation is in
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