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1、a Date: 3 August 2007 Origin: National Latest date for receipt of comments: 31 October 2007 Project no.: 2006/01427 Responsible committee: GSE/30 Gas installations (1st, 2nd and 3rd family gases) Interested committees: GSE/30/-/15 Flues and ventilation for appliances of rated input not exceeding 70
2、kW Title: Draft BS 5440-1 Flueing and ventilation for gas appliances of rated input not exceeding 70 kW net (1st, 2nd and 3rd family gases) Part 1: Specification for installation of gas appliances to chimneys and for maintenance of chimneys Supersession information: If this document is published as
3、a standard, the UK implementation of it will supersede BS5440-1 : 2000 and partially supersede. NONE If you are aware of a current national standard which may be affected, please notify the secretary (contact details below). WARNING: THIS IS A DRAFT AND MUST NOT BE REGARDED OR USED AS A BRITISH STAN
4、DARD. THIS DRAFT IS NOT CURRENT BEYOND 31 October 2007. This draft is issued to allow comments from interested parties; all comments will be given consideration prior to publication. No acknowledgement will normally be sent. See overleaf for information on commenting. No copying is allowed, in any f
5、orm, without prior written permission from BSI except as permitted under the Copyright, Designs and Patent Act 1988 or for circulation within a nominating organization for briefing purposes. Electronic circulation is limited to dissemination by e-mail within such an organization by committee members
6、. Further copies of this draft may be purchased from BSI Customer Services, Tel: +44(0) 20 8996 9001 or email ordersbsi-. British, International and foreign standards are also available from BSI Customer Services. British Standards on CD or Online are available from British Standards Publishing Sale
7、s Limited. Tel: 01344 404409 or email bsonlinetechindex.co.uk. Information on the co-operating organizations represented on the committees referenced above may be obtained from the responsible committee secretary. Cross-references The British Standards which implement International or European publi
8、cations referred to in this draft may be found via the British Standards Online Service on the BSI web site http:/www.bsi-. Direct tel: 020 8996 7123 Responsible Committee Secretary: Mr B D J Williams (BSI) E-mail: bernard.williamsbsi- Draft for Public Comment Head Office 389 Chiswick High Road Lond
9、on W4 4AL Telephone: +44(0)20 8996 9000 Fax: +44(0)20 8996 7001 Form 36 Version 7.0 DPC: 07/30150793 DC Licensed Copy: London South Bank University, London South Bank University, Sat Aug 18 09:53:14 GMT+00:00 2007, Uncontrolled Copy, (c) BSI b Introduction Your comments on this draft are welcome and
10、 will assist in the preparation of the consequent British Standard. If no comments are received to the contrary, this draft may be implemented unchanged as a British Standard. Submission The guidance given below is intended to ensure that all comments receive efficient and appropriate attention by t
11、he responsible BSI committee. Annotated drafts are not acceptable and will be rejected. All comments must be submitted, preferably electronically, to the Responsible Committee Secretary at the address given on the front cover. Comments should be compatible with Version 6.0 or Version 97 of Microsoft
12、 Word for Windows, if possible; otherwise comments in ASCII text format are acceptable. Any comments not submitted electronically should still adhere to these format requirements. All comments submitted should be presented as given in the example below. Further information on submitting comments and
13、 how to obtain a blank electronic version of a comment form are available from the BSI web site at: http:/www.bsi- Date: xx/xx/200x Document: ISO/DIS xxxxx 1 2 (3) 4 5 (6) (7) MB Clause No./ Subclause No./ Annex (e.g. 3.1) Paragraph/ Figure/Table/ Note (e.g. Table 1) Type of com- ment Comment (justi
14、fication for change) by the MB Proposed change by the MB Secretariat observations on each comment submitted 3.1 Definition 1 ed Definition is ambiguous and needs clarifying. Amend to read . so that the mains connector to which no connection . 6.4 Paragraph 2 te The use of the UV photometer as an alt
15、ernative cannot be supported as serious problems have been encountered in its use in the UK. Delete reference to UV photometer. Microsoft and MS-DOS are registered trademarks, and Windows is a trademark of Microsoft Corporation. Licensed Copy: London South Bank University, London South Bank Universi
16、ty, Sat Aug 18 09:53:14 GMT+00:00 2007, Uncontrolled Copy, (c) BSI PRIVATE CIRCULATION Draft BS 5440-1:200x 1 Draft BS 5440-1:200x Flueing and ventilation for gas appliances of rated input not exceeding 70 kW net (1st, 2nd and 3rd family gases) Part 1: Specification for installation of gas appliance
17、s to chimneys and for maintenance of chimneys IMPORTANT INFORMATION Please note that this is a draft and not a typeset document. Editorial comments are welcomed, but persons commenting on this draft are advised not to comment on detailed matters of typography and layout. The most recent changes are
18、shown as tracked changes (insertions deletions). If I receive no comments to the contrary by xx xxxx xxxx I will accept the changes and submit this draft to GSE/30 with a proposal that it be issued for DPC. Licensed Copy: London South Bank University, London South Bank University, Sat Aug 18 09:53:1
19、4 GMT+00:00 2007, Uncontrolled Copy, (c) BSI PRIVATE CIRCULATION Draft BS 5440-1:200x 2 Contents Foreword 5 1 Scope 7 2 Normative references 8 3 Terms and definitions 9 4 Competence 14 5 General 15 5.1 Compatibility of appliances and chimneys 15 5.2 Chimney terminals and location of chimney outlets
20、16 5.3 Chimneys for use with condensing appliances (open-flued and room-sealed) 17 5.4 Location of appliances 19 5.5 Passive stack ventilation 20 5.6 Exchange of information and planning 20 5.7 Maintenance 21 6 Individual open-flued natural draught Types B11, B12, B13 appliances 21 6.1 Design 21 6.2
21、 Installation 35 6.3 Commissioning 38 6.4 Radon gas systems present 41 6.5 Maintenance 41 7 Individual open-flued fanned draught Types B14, B22, B23 appliances and fanned draught chimneys 42 7.1 Design 42 7.2 Installation 43 7.3 Commissioning 44 7.4 Maintenance 44 8 Shared open flue for natural drau
22、ght Types B11, B12, B13 appliances 45 8.1 Design 45 8.2 Installation 48 8.3 Maintenance 48 9 Room-sealed natural draught chimney configurations (balanced flue) for Type C11 appliances 48 9.1 General 48 9.2 Installation 49 9.3 Installation checks 50 9.4 Maintenance 50 10 Room-sealed: fanned draught c
23、himney configurations (balanced flue for Type C12, C13, C32 and C33) and (non-balanced flue for Types C52, C53, C62 and C63 appliances) 51 10.1 Design options 51 10.2 Installation 52 10.3 Installation checks 53 10.4 Maintenance 54 11 Balanced compartment 55 11.1 General 55 11.2 Design 56 11.3 Balanc
24、ed compartment construction 56 11.4 Temperature effects 57 11.5 Terminals 57 11.6 Commissioning 57 Licensed Copy: London South Bank University, London South Bank University, Sat Aug 18 09:53:14 GMT+00:00 2007, Uncontrolled Copy, (c) BSI PRIVATE CIRCULATION Draft BS 5440-1:200x 3 11.7 Maintenance 57
25、12 Room-sealed Types C2 and C4 appliances for shared chimneys 58 12.1 Design 58 12.2 Sizing 59 12.3 Terminal design and location 61 12.4 Inspection 61 12.5 Appliance selection and installation 61 12.6 Commissioning 63 12.7 Maintenance 63 13 Special categories of chimney 64 13.1 Chimneys for Type C7
26、(“Vertex”) appliances 64 13.2 Other open flue fanned draught chimneys 64 Annexes Annex A (informative) Classifications 66 Annex B (informative) Calculation method for flue sizing 73 Annex C (normative) Chimney outlet positions 78 Annex D (informative) Guidance on the design and installation of flue
27、block systems in the UK 89 Annex E (informative) Checking of case seals and the general integrity of room-sealed fan assisted positive pressure gas appliances 100 Bibliography 101 List of figures Figure 1 Proximity of flue outlet to a boundary 19 Figure 2 Typical methods of using a flue liner in a m
28、asonry chimney installation serving a gas appliance, other than a back boiler 23 Figure 3 Installation of a gas fire and combined back boiler using a back boiler enclosure and prefabricated chimney: enclosure arrangement using a false chimney breast and closure panel 24 Figure 4 Installation of a ga
29、s fire and combined back boiler using a back boiler enclosure and prefabricated chimney: enclosure arrangement using a proprietary back boiler box 25 Figure 5 Maximum lengths for condensate-free chimneys for appliances other than gas fires 29 Figure 6 Boiler connections to existing brick chimney 34
30、Figure 7 Shared flues in chimneys and flue block types 47 Figure 8 Shielding of plastics gutters 49 Figure 9 Balanced compartment installations 55 Figure 10 Shared room-sealed systems 60 Figure A.1 Typical appliances Types A and B, classification to PD CEN/TR 1749:2005 69 Figure A.3 Typical applianc
31、e Types C3 and C7, classification to PD CEN/TR 1749:2005 73 Figure B.1 Worked example 1 77 Figure B.2 Worked example 2 78 Figure C.1 Open flue, natural draught chimney outlet locations for pitched roofs 80 Figure C.2 Open flue, natural draught chimney outlet locations adjacent to structures on pitch
32、ed roofs 81 Figure C.3 Open flue or room-sealed, natural or fanned draught chimney outlet locations adjacent to windows or openings on pitched roofs 81 Figure C.4 Open flue, natural draught chimney outlet locations on flat roofs 82 Licensed Copy: London South Bank University, London South Bank Unive
33、rsity, Sat Aug 18 09:53:14 GMT+00:00 2007, Uncontrolled Copy, (c) BSI PRIVATE CIRCULATION Draft BS 5440-1:200x 4 Figure C.5 Open flue, natural draught chimney outlet locations near adjacent structures or buildings 83 Figure C.6 Room-sealed configuration outlet location on pitched roofs 84 Figure C.7
34、 Open flue, fanned draught chimney and room-sealed configuration outlet locations adjacent to structures on pitched roofs 84 Figure C.8 Chimney outlet positions 85 Figure C.9 Example of how a natural draught, room-sealed chimney configuration outlet position is measured 88 Figure C.10 Example of how
35、 a fanned draught room-sealed chimney configuration outlet and a fanned draught open flue chimney outlet position is measured 89 Figure D.1 Gas flue blocks 91 Figure D.2 Typical flue block systems (general arrangement) 92 Figure D.3 Bonded gas flue block system for timber frame construction 93 Figur
36、e D.4 Typical construction details for gas flue block systems in internal walls 94 Figure D.5 Typical construction details for gas flue block systems in external walls 95 Figure E.1 Checklist for checking of case seals and the general integrity of room-sealed fan assisted positive pressure gas appli
37、ances 100 List of tables Table 1 Condensate-free lengths of individual open flue used with a gas fire 30 Table 2 Appliance/chimney combinations which require the chimney to be lined 33 Table 3 Minimum void dimensions required below appliance connections 33 Table 4 Minimum flow rates for fanned flues
38、 44 Table 5 Appliances discharging by way of subsidiary flue into a main flue 46 Table 6 Normal SE-duct block sizes 58 Table 7 SE-duct sizes for continuously burning appliances (e.g. boilers, gas fires) in flats 59 Table 8 SE-duct sizes for combinations of instantaneous water heaters (30 kW input ra
39、ting) and continuously burning appliances (e.g. boilers, gas fires) in flats 59 Table A.1 Classification of gas appliances used in the UK according to the method of evacuation of products of combustion (types) from PD CEN/TR 1749:2005 66 Table A.2 Default values in accordance with BS EN 1443:2003 68
40、 Table B.1 Resistance factors for use in calculating equivalent heights 74 Table B.2 Inlet and outlet resistances 75 Table B.3 Minimum equivalent heights needed 75 Table C.1 Minimum dimensions of open flue chimney outlet positions 85 Table C.2 Minimum dimensions of room-sealed chimney outlet positio
41、ns 87 Summary of pages This document comprises a front cover, an inside front cover, pages i to xx, pages 1 to xx , an inside back cover and a back cover. Licensed Copy: London South Bank University, London South Bank University, Sat Aug 18 09:53:14 GMT+00:00 2007, Uncontrolled Copy, (c) BSI PRIVATE
42、 CIRCULATION Draft BS 5440-1:200x 5 Foreword Publishing information This part of BS 5440 is published by BSI and came into effect on XX Month 200X. It was prepared by Technical Committee GSE/30, Gas installations (1st, 2nd and 3rd family gases) to support and complement BS EN 15287-1 and BS EN 15287
43、-2. Supersession This part of BS 5440 supersedes BS 5440-1:2000, which is withdrawn. Information about this document BS 5440 is published in parts as follows: Part 1: Specification for installation of gas appliances to chimneys and for maintenance of chimneys; Part 2: Specification for installation
44、and maintenance of ventilation for gas appliances. This revision has been undertaken for the following reasons. a) To acknowledge that European work on chimney standards has brought about the need to redefine chimney concepts and adopt common terminology consistent with the range of products used ac
45、ross the whole European Community. To align with European Standards, (the general requirements for which are given in BS EN 1443) where a chimney is treated as a structure containing a flue (the passageway) and might include a liner (inner wall), insulation and an outer wall. The common terminology
46、in UK industry, which has regarded a chimney as a masonry structure generally associated with solid fuel appliances, has been superseded. Attention is drawn to the definitions for chimney (3.8), connecting flue pipe (3.16), flue (3.27) and flue liner (3.30), air supply duct (3.1) and room-sealed chi
47、mney configuration (3.41). b) To recognize and refer to recent changes in building legislation. c) To cover recent developments in appliance design, flue material and practical experience in the disposal of products of combustion by means of flues. d) To improve advice on flueing and ventilation ins
48、tallation practices and reduce occurrences of CO related incidents attributable to flueing and ventilation for gas appliances. It is essential that the appropriate specifications/codes of practice are consulted on all aspects of appliance and flue installation. Use of this document It has been assum
49、ed in the preparation of this British Standard that the execution of its provisions will be entrusted to appropriately qualified and experienced people, for whose use it has been produced. This British Standard allows gas appliance and/or chimney manufacturers instructions to recommend a method of installation, testing, commissioning or maintenance which differs in points of detail from thi