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BS 6644-2011 specification for the installation and maintenance of gas-fired hot water boilers of rated inputs between 70 kw (net) and 1.8 mw (net) (2nd and 3rd family gases)

Standard Number:  BS 6644-2011
Title:  specification for the installation and maintenance of gas-fired hot water boilers of rated inputs between 70 kw (net) and 1.8 mw (net) (2nd and 3rd family gases)
Language:  English
Replacing Standard:  BS 6644-2005+A1-2008

Publication Date:  2011/11/30
Execute Date:  2011/11/30
Adopted International Standard:  BS 779, BS 855, BS 1212-1, BS 1212-2, BS 1212-3, BS 2790, BS 5440-2:2009, BS 5854:1980, BS 5978, BS 7671, BS EN 297, BS EN 303-1, BS EN 303-3, BS EN 483, BS EN 656:2000, BS EN 676, BS EN 677, BS EN 1443:1999, BS EN 1856-1, BS EN 1856-2, BS EN 1993-3-2, BS EN 12952, BS EN 12953, BS EN 13076, BS EN 13077, BS EN 13831, BS EN 13959, BS EN ISO 4126-1, BS EN ISO 10380:2003, IGEM/UP/2:1994, UKLPG. Code of Practice 24:Part 6:2000, UKLPG. Code of Practice 22:2002, BS 5422, BS 5440-1, BS 6700, BS 6880-1:1988, BS 6880-2:1988, BS 9999, BS EN 88:1991, BS EN 13084-1:2007, BS EN 14622, BS EN 50379-1, BS EN 60079-29-1, PD CEN/TR 1749, Gas Safety (Installation and Use) Regulations 1994, as amended and, applied by the Gas Safety (Application) Order (Isle of Man) 1996, Health and Safety (Gas) (Guernsey) Ordinance 2006, Gas Safety (Installation and Use) Regulations 1998, Gas Safety (Installation and Use) Regulations Northern Ireland) 2004, Gas Appliances (Safety) Regulations 1995, Boiler (Efficiency) Regulations 1993 as amended, Building Regulations 2000 as amended, Building (Scotland) Regulations 2004, Building Regulations (Northern Ireland) 2010 as amended, Pressure Equipment Regulations 1999, Water Supply (Water Fittings) Regulations 1999 as amended, Health and Safety at Work etc. Act 1974 as amended, Electricity at Work Regulations 1989, Clean Air Act 1993, Asbestos (Prohibitions) Regulations 1992 as amended, Dangerous Substances and Explosive Atmospheres Regulations 2002, Environment Act 1995, IGEM/UP/10:2010, IGEM/SR/25:2006, IGEM/UP/16, HSE COP20:1987, HSE L56, 90/396/EEC, 99/36/EC, Scottish Water Byelaws 2004, UKLPG. Code of Practice 7:2004, UKLPG. Code of Practice 24: Part 1:2006, HSE L134, HSE L135:2003, HSE L136:2003, HSE L137:2003, HSE 138:2003, HSE INDG 370:2002, Chimney Heights 1956 Clean Air Act Memorandum, Building Regulations Approved Document J:2000, IGEM/UP/4:1998, IGE/UP/1:1995, IGE/UP/1A:1998, BS 5885-1, BS 5885-2, BS 6501-1, DD 221, BS EN 437, BS EN 1567, BS EN 10255, BS EN 12828, BS EN 13084-2, BS EN 13084-4, BS EN 13384-1, BS EN 13502, BS EN 15001-1, BS EN 15001-2, BS EN 60079-10-1
Status:  Current
Publisher:  British Standards
Price:  
Number of Pages:68  

Preface:Gas-powered devices, Hot-water boilers, Boilers, 2nd family gases, 3rd family gases, Selection, Installation, Maintenance, Heating equipment, Position, Boiler rooms, Safety valves, Size, Pipes, Vent pipes, Gas supply, Gas pipes, Ventilation, Flow rates, Flues, Chimneys, Condensation, Inspection, Commissioning, Combustion products  
Description:This British Standard specifies requirements for the installation, including design, inspection, commissioning and maintenance, of gas-fired hot water boilers of net rated heat inputs exceeding 70 kW but not exceeding a net heat input of 1.8 MW. Groups of boilers with individual net heat inputs of 70 kW or less, but with aggregate net heat inputs in excess of 70 kW, are also covered. This British Standard is applicable to the installation of boilers that are designed to utilize normally distributed gases of Group H of the second family (e.g. natural gas), and gases of Group P (e.g. propane) and Group B (e.g. butane) of the third family. For the purposes of this installation standard, LPG/air mixtures are regarded as third family gases. This British Standard is applicable to the installation of the following gas-fired hot water boilers: Boilers supplied as a complete assembly and conforming to BS EN 656 or BS 5978 (all parts); Boilers supplied as a complete assembly and used in multiple boiler installations where the total net heat input exceeds 70 kW and conforming to BS EN 297, BS EN 483 or BS EN 677; Boilers and burners delivered separately and assembled on site, comprising: 1) a boiler shell conforming to BS EN 303-1, BS EN 12952 (all parts), BS EN 12953 (all parts), BS 779, BS 855 or BS 2790; 2) a burner conforming to BS EN 676; 3) an assembly conforming to BS EN 303-3 or BS 5987-1 and BS 5978-3.   
Overview: BS 6644:2011 Specification for the installation and maintenance of gas-fired hot water boilers of rated inputs between 70 kW (net) and 1.8 MW (net) (2nd and 3rd family gases)BS 6644:2011 specifies requirements for the installation, including design, inspection, commissioning and maintenance, of gas-fired hot water boilers of net rated heat inputs exceeding 70 kW but not exceeding a net heat input of 1.8 MW. Groups of boilers with individual net heat inputs of 70 kW or less, but with aggregate net heat inputs in excess of 70 kW, are also covered.BS 6644:2011 is applicable to the installation of boilers that are designed to utilize normally distributed gases of Group H of the second family (e.g. natural gas), and gases of Group P (e.g. propane) and Group B (e.g. butane) of the third family. For the purposes of this installation standard, LPG/air mixtures are regarded as third family gases.This British Standard is applicable to the installation of the following gas-fired hot water boilers:Boilers supplied as a complete assembly and conforming to BS EN 656 orBS 5978 (all parts)Boilers supplied as a complete assembly and used in multiple boiler installations where the total net heat input exceeds 70 kW and conforming to BS EN 297, BS EN 483 or BS EN 677Boilers and burners delivered separately and assembled on site, comprising:- a boiler shell conforming to BS EN 303-1, BS EN 12952 (all parts),   BS EN 12953 (all parts), BS 779, BS 855 or BS 2790-  a burner conforming to BS EN 676-  an assembly conforming to BS EN 303-3 or BS 5987-1 and BS 5978-3.This is a full revision of the standard and introduces the following principal changes:System requirements in accordance with BS EN 12828 have been addedDetails on condensing appliances and condensate removal have been addedThe appliance classification types have been updated.Contents for BS 6644:2011 includes:Scope Normative referencesTerms and definitionsCompetence and design considerationsSelection of boiler, materials and componentsInstallationInspection, commissioning and servicingSupersessionThis British Standard supersedes BS 6644:2005+A1:2008, which is withdrawn.  
Cross References:BS 779, BS 855, BS 1212-1, BS 1212-2, BS 1212-3, BS 2790, BS 5440-2-2009, BS 5854-1980, BS 5978, BS 7671, BS EN 297, BS EN 303-1, BS EN 303-3, BS EN 483, BS EN 656-2000, BS EN 676, BS EN 677, BS EN 1443-1999, BS EN 1856-1, BS EN 1856-2, BS EN 1993-3-2, BS EN 12952, BS EN 12953, BS EN 13076, BS EN 13077, BS EN 13831, BS EN 13959, BS EN ISO 4126-1, BS EN ISO 10380-2003, IGEM/UP/2-1994, UKLPG. Code of Practice 24-Part 6-2000, UKLPG. Code of Practice 22-2002, BS 5422, BS 5440-1, BS 6700, BS 6880-1-1988, BS 6880-2-1988, BS 9999, BS EN 88-1991, BS EN 13084-1-2007, BS EN 14622, BS EN 50379-1, BS EN 60079-29-1, PD CEN/TR 1749, Gas Safety (Installation and Use) Regulations 1994, as amended and, applied by the Gas Safety (Application) Order (Isle of Man) 1996, Health and Safety (Gas) (Guernsey) Ordinance 2006, Gas Safety (Installation and Use) Regulations 1998, Gas Safety (Installation and Use) Regulations Northern Ireland) 2004, Gas Appliances (Safety) Regulations 1995, Boiler (Efficiency) Regulations 1993 as amended, Building Regulations 2000 as amended, Building (Sco  
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Tile in English:  specification for the installation and maintenance of gas-fired hot water boilers of rated inputs between 70 kw (net) and 1.8 mw (net) (2nd and 3rd family gases)

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