BS 5871-1-2005 Specification for the installation and maintenance of gas fires convector heaters fire back boilers and decorative fuel effect gas appliances - Gas fires convector h.pdf

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1、BRITISH STANDARD BS 5871-1:2005 Specification for the installation and maintenance of gas fires, convector heaters, fire/back boilers and decorative fuel effect gas appliances Part 1: Gas fires, convector heaters, fire/back boilers and heating stoves (2nd and 3rd family gases) ICS 91.140.10; 97.100.

2、20 BS 5871-1:2005 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 15 April 2005 BSI 15 April 2005 First published July 1980 Second edition September 1991 Third edition July 2001 Fourth edition April 2005 The following BSI references relate to

3、 the work on this British Standard: Committee reference GSE/30 Draft for Development 03/320604 DC ISBN 0 580 45648 X Committees responsible for this British Standard The preparation of this British Standard was entrusted to Technical Committee GSE/30, Gas installations (1st, 2nd and 3rd family gases

4、), upon which the following bodies were represented: Boiler and Radiator Manufacturers Association Ltd. British Flue and Chimney Manufacturers Association BSI Consumer Policy Committee Catering Equipment Suppliers Association Centrica plc Council for Registered Gas Installers Department of Trade and

5、 Industry Health and Safety Executive Heating and Ventilating Contractors Association ICOM Energy Association Institute of Domestic Heating and Environmental Engineers Institution of Gas Engineers and Managers LP Gas Association Society of British Gas Industries Co-opted Members Amendments issued si

6、nce publication Amd. No. Date CommentsBS 5871-1:2005 BSI 15 April 2005 i Contents Page Committees responsible Inside front cover Foreword iii 1S c o p e 1 2 Normative references 1 3T e r m s a n d d e f i n i t i o n s 2 4 Exchange of information and planning 5 5A p p l i a n c e s 6 6 Materials and

7、 components 9 7L o c a t i o n 9 8 Appliance sizing 10 9V e n t i l a t i o n 1 1 10 Flueing 11 11 Appliance fixing 18 12 Fire precautions 36 13 Gas supply 38 14 Electricity supplies and wiring 39 15 Ventilation (Fire/back boilers and fire/back circulators only) 40 16 Appliance fixing (Fire/back boi

8、lers and fire/back circulators only) 40 17 Fire precautions (Fire/back boilers and fire/back circulators only) 44 18 Water connections (Fire/back boilers and fire/back circulators only) 44 19 Commissioning 45 20 Instructions and use of fireguards 45 21 Advice to be given to the user 46 Annex A (info

9、rmative) Calculation of required heat output of an appliance 47 Annex B (informative) Calculation of clearance flue flow 49 Bibliography 58 Figure 1 Types of fuel effect appliances covered by BS 5871 8 Figure 2 Method of installing a gas fire in conjunction with a flue box and flue pipe 15 Figure 3

10、Methods of using a flue liner in a masonry chimney installation serving a gas appliance, other than a fire/back boiler or circulator 16 Figure 4 Installation of a side exit fanned draught flue system 18 Figure 5 Method of installing a gas fire or convector heater on an existing or new solid fuel hea

11、rth 22 Figure 6 Method of wall mounting a gas fire on an existing chimney breast 24 Figure 7 Method of installing a gas fire on the hearth of a precast block chimney 26 Figure 8 Method of installing an open-flued live fuel effect gas fire with an integral draught diverter onto a proprietary fire sur

12、round 27 Figure 9 Method of installing an open-flued live fuel effect gas fire with integral draught diverter onto an existing or new solid fuel hearth 29 Figure 10 Application of direct flue connection appliances 31 Figure 11 Installation of a heating stove connected to a factory made chimney or fl

13、ue system 33 Figure 12 Installation of a freestanding heating stove located in a builders opening 34 Figure 13 Installation of a freestanding heating stove using a closure plate 35 Figure 14 Typical unconcealed gas supply system to a gas fire 39BS 5871-1:2005 ii BSI 15 April 2005 Page Figure 15 Inst

14、allation of a gas fire and combined back boiler where a chimney breast is extended to form a duct for pipework and wiring 42 Figure 16 Installation of a gas fire and combined back boiler using a back boiler enclosure and prefabricated chimney/flue system 43 Figure B.1 Bubble leak indicator 53 Figure

15、 B.2 Basic test box 54 Figure B.3 Test box and flue for appliances that can be installed in a metal flue box 55 Figure B.4 Collecting hood 56 Figure B.5 Collecting hood positioning 57 Table 1A Temperatures and ventilation rates 10 Table 1B Air change rates for rooms with open fires and flues up to 4

16、0 000 mm 2 (200 mm 200 mm) 10 Table 2 Designation system for metal chimneys for use with gas fires 12 Table 3 Minimum void volumes and depths below gas fire flue spigots 20 Table A.1 Fabric and ventilation heat losses for example A 48 Table A.2 Fabric and ventilation heat losses for example B 48 Tab

17、le B.1 Test internal air pressures 49 Table B.2 Wobbe numbers for test gases 50 Table B.3 Inlet pressures for tolerances 50 Table B.4 K values for reference gases 53BS 5871-1:2005 BSI 15 April 2005 iii Foreword This part of BS 5871 has been prepared under the direction of the Gas Standards Policy Co

18、mmittee and is a revision of BS 5871-1:2001, which is obsolescent and will be withdrawn in due course. This new edition of BS 5871-1 comes into effect on 11 July 2005. Requirements for flueless appliances specified in BS 5871-1:2001 no longer appear in this new edition of the standard. These are to

19、be included BS 5871-4, which is currently in the course of preparation. The requirements for flueless appliances specified in BS 5871-1:2001 will remain current until such time as BS 5871-4 is published. This revision provides an update of the previous standard and has also been extended to cover th

20、e installation of heating stoves and appliances where the flue is connected directly to the appliance outlet spigot. In order to improve the layout of the standard, additional requirements for the installation of fire/back boilers and fire/back circulators are now specified in Clauses 15, 16, 17 and

21、 18. BS 5871 continues to cover the different types of fuel effect appliances in a single series of British Standards, as follows: 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 e

22、xceeding 15 kW and fire/back boilers (2nd and 3rd family gases); BS 5871-3: Decorative fuel effect gas appliances of heat input not exceeding 20 kW (2nd and 3rd family gases); BS 5871-4: Independent gas-fired flueless space heaters of nominal heat input not exceeding 6 kW (2nd and 3rd family gases)

23、(in the course of preparation). To identify which part of BS 5871 to use when fitting an appliance which simulates a solid fuel fire or produces other decorative effects, e.g. a pebble fire, reference should be made to Figure 1 which serves to illustrate appliance types and link them to the appropri

24、ate part of BS 5871. It should be noted that the only fuel effect appliances covered by this part of BS 5871 are gas fires detailed in i) of the commentary and recommendations in Clause 5 of this standard. The manufacturers instructions supplied with fanned draught appliances in which the fan is eit

25、her integral with the appliance or with the flue system will make reference to the appropriate part of BS 5871. It should be noted that the only appliances covered by this part of BS 5871 are those that are “CE” marked. However, BS 5871-1 may also be referred to for the installation of used applianc

26、es, 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 can be used without constituting a danger. Attention is drawn to Clause 5 concerning this particula

27、r aspect. BS 5871-1:2005 iv BSI 15 April 2005 Arising from European Standards harmonization, some British Standards appliance specifications are now being replaced by European Standards. One consequence of this process is that the reference clearance flue flow test, currently included in some of the

28、 British Standards covering the safety of appliances dealt with by BS 5871, will not be given in European appliance standards. This test has hitherto been used to determine the flue flow, under laboratory conditions, that an appliance will just clear its combustion products. The test has been used a

29、s a key factor in determining whether or not certain appliances of 7 kW 1)heat input or less require purpose provided ventilation for their installation. Although BS 5871 is an appliance installation standard, the drafting committee has decided to include the clearance flue test as an informative an

30、nex. It is hoped that this arrangement will provide Notified Test Houses under the Gas Appliance Directive with a continuing means to evaluate appliances for installation within the UK which claim that no purpose provided ventilation is necessary for their installation. This standard allows manufact

31、urers instructions to specify a method of installation, testing, commissioning or maintenance which differs in points of detail from this standard. This reference to manufacturers instructions is allowed only where it will result in at least an equivalent level of safety. In such circumstances, it i

32、s important that the manufacturers instructions are followed. NOTE In the preparation of this standard, the opportunity has been taken to present it in the format of a practice specification. This format allows the requirements of the specification to be supported by recommendations. To comply with

33、this specification, the user has to comply with all its requirements. He may depart from recommendations but this would be his own responsibility and he would be expected to have good reasons for doing so. This publication does not purport to include all necessary provisions of a contract. Users are

34、 responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. In particular, attention is drawn to the following statutory regulations. The Gas Safety (Installation and Use) Regulations 1998 1. The Gas Safety (Installation and

35、 Use) (Northern Ireland) Regulations 2004 2. The Gas Appliances (Safety) Regulations 1995 3. The Building Regulations 2000, as amended 4. The Building (Scotland) Regulations 2004 5. The Building Regulations (Northern Ireland) Statutory Rules 2000 6. The Gas Safety (Application) (Isle of Man) Order 1

36、996 7. Summary of pages This document comprises a front cover, an inside front cover, pages i to iv, pages 1 to 59 and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. 1) Due to tolerances, this applies to a heat input of 7 kW on both net

37、 and gross calorific value see Clause 1, Scope, Note 2.BS 5871-1:2005 BSI 15 April 2005 1 1 Scope This part of BS 5871 specifies installation and maintenance requirements for flued fixed space heating appliances burning 2nd and 3rd family gases for the purpose of heating rooms or spaces in domestic

38、(see Note 4) or commercial premises. It applies to appliances known as radiant gas fires, radiant convector gas fires, convector heaters, and heating stoves. Combined appliances of the type where a gas fire is used in conjunction with a boiler or circulator are also covered in so far as the installa

39、tion of the combined appliance is concerned. This standard covers the selection of a suitable appliance, the flueing and/or ventilation requirements, and other measures necessary to ensure a safe installation. The central heating and/or hot water system connected to a combined appliance is not withi

40、n the scope of this standard and reference should be made to BS 5449 (see Note 5) and BS 5546 for this part of such an installation. This standard is not applicable to: a) mobile and portable appliances conforming to BS EN 449; or b) appliances in touring caravans; or c) open-fronted radiant-convect

41、or heaters without a dress guard. Additional requirements for the installation of fire/back boilers and fire/back circulators are specified in Clauses 15, 16, 17 and 18. NOTE 1 Attention is drawn to the foreword concerning fuel effect appliances which burn gas so as to simulate a solid fuel fire or

42、produce other decorative effects. The only types of such appliances covered by this part of BS 5871 are those detailed in i) of the commentary and recommendations on Clause 5 of this standard. Further guidance in this respect is given in Figure 1. NOTE 2 Heat inputs in this document are based on net

43、 calorific value. Figures based on gross calorific value are given in parentheses where deemed necessary. (See also Clause 5, commentary and recommendations, h). NOTE 3 Attention is drawn to the foreword concerning the installation of used appliances. NOTE 4 As well as normally constructed dwellings

44、, domestic premises include any permanently sited caravans, holiday homes, residential park homes and permanently moored boats. See IGE/UP/8 8. NOTE 5 BS 5449 has been partly replaced by BS EN 12828 and BS EN 12831, and is to be withdrawn once BS EN 14336 and BS EN 14337 are published. 2 Normative r

45、eferences The following normative documents contain 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

46、 the publication referred to applies. BS 715, Specification for metal flue pipes, fittings, terminals and accessories for gas-fired appliances with a rated input not exceeding 60 kW. BS 1289-1, Flue blocks and masonry terminals for gas appliances Part 1: Specification for precast concrete flue block

47、s and terminals. BS 1945, Specification for fireguards for heating appliances (gas, electric and oil-burning). BS 4543-2, Factory-made insulated chimneys Part 2: Specification for chimneys with stainless steel flue linings for use with solid fuel fixed appliances. BS 4543-3, Factory-made insulated c

48、himneys Part 3: Specification for chimneys with stainless steel flue lining for use with oil fired appliances. BS 5440-1, Installation and maintenance of flues and ventilation for gas appliances of rated input not exceeding 70 kW (1st, 2nd and 3rd family gases) Part 1: Specification for installation

49、 of flues. BS 5440-2, Installation and maintenance of flues and ventilation for gas appliances of rated input not exceeding 70 kW (1st, 2nd and 3rd family gases) Part 2: Specification for installation and maintenance of ventilation for gas appliances. BS 5449, Specification for forced circulation hot water central heating systems for domestic premises. BS 5482-1, Domestic butane- and propane-gas-burning