BS 6644:2005+A1:2008 - Specification for installation of gas-fired hot water boilers of rated inputs of between 70kW (net) and 1.8 MW (net) (2nd and 3rd family gases) – BSI British Standards

BS 6644:2005+A1:2008

Specification for installation of gas-fired hot water boilers of rated inputs of between 70kW (net) and 1.8 MW (net) (2nd and 3rd family gases)

Status : Revised, Withdrawn   Published : July 2005 Replaced By : BS 6644:2011

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BS 6644 is a key standard on installation of gas-fired hot water boilers. It specifies requirements for the installation, including design, inspection and commissioning, of gas-fired hot water boilers of net rated heat inputs exceeding 70 kW. Groups of boilers with individual net heat inputs of 70 kW or less, but with total net heat inputs in excess of 70 kW are also covered by this standard.

This standard applies to the installation of boilers that are designed to use 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.

BS 6644 is relevant to the installation of gas-fired hot water boilers within the scope of:

a) For boilers supplied as a complete assembly, BS EN 656 or BS 5978 (all parts)
b) For boilers supplied as a complete assembly and used in multiple boiler installations whose total net heat input exceeds 70 kW, BS EN 297, BS EN 483, or BS EN 677
c) For boilers and burners delivered separately and assembled on site:
1) The boiler shell, BS EN 303-1, BS EN 12952, BS EN 12953 BS 779, BS 855, or BS 2790
2) The burner, BS EN 676
3) The assembly, BS EN 303-3 or BS 5987-1 and BS 5978-3.

It can also be used for installations that have been converted from burning other fuels to gas firing.

This standard is not appropriate for:
a) The installation of any heating or hot water supply system associated with the boiler installation
b) The installation of gas cushion systems (non diaphragm expansion vessels) intended to pressurize the hot water circuit
c) Installations in hazardous areas (these are defined in The Dangerous Substances and Explosive Atmospheres Regulations).

This amended version of BS 6644 replaces BS 6644:2005 that is now withdrawn.




Standard NumberBS 6644:2005+A1:2008
TitleSpecification for installation of gas-fired hot water boilers of rated inputs of between 70kW (net) and 1.8 MW (net) (2nd and 3rd family gases)
StatusRevised, Withdrawn
Publication Date08 July 2005
Withdrawn Date30 November 2011
Normative References(Required to achieve compliance to this standard)BS 779, BS 855, BS 1212-1, BS 1212-2, BS 1212-3, BS 1387, BS 2790, BS 4076, BS 4814, BS 5854:1980, BS 5978-1, BS 5978-2, BS 5978-3, BS 6282-1:1982, BS 7671, BS EN 297, BS EN 303-1, BS EN 303-3, BS EN 483, BS EN 656, BS EN 676, BS EN 677, BS EN 1567, BS EN 1856-1, BS EN 1856-2, BS EN 12952, BS EN 12953, BS EN 13076, BS EN 13077, BS EN ISO 4126-1, BS EN ISO 10380:2003
Informative References(Provided for Information)BS 5422:2001, BS 5440-1:2000, BS 5588-0:1996, BS 5588-1:1990, BS 5885-1, BS 5885-2, BS 6448, BS 6501-1:2004, BS 6700:1997, BS 6880-1:1988, BS 6880-2:1988, BS 7927:1998, BS EN 88:1991, BS EN 294:1992, BS EN 437:2003, BS EN 806-1:2000, BS EN 806-2:2005, BS EN 1443:1999, BS EN 13084-1:2000, BS EN 13084-2:2001, BS EN 13084-4:2002, BS EN 13384-1:2002, BS EN 13502:2002, BS EN 60079-10:2003, BS EN 61779-4:2000, BS EN 61779-5:2000, prEN 13959:2005, prEN 14622:2004, DD 221:1997, PD 1749:2001, 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, Building Regulations 2000, Building (Scotland) Regulations 2004, Building Regulations (Northern Ireland), Pressure Equipment Regulations 1999, Water Supply (Water Fittings) Regulations 1999, Health and Safety at Work etc. Act 1974, Electricity at Work Regulations 1989, Clean Air Act 1993, Asbestos (Prohibitions) Regulations 1992, Dangerous Substances and Explosive Atmosphe
Replaced ByBS 6644:2011
ReplacesBS 6644:1991
Amended ByAmendment, November 2008. Amends and replaces BS 6644:2005.
Draft Superseded By03/310868 DC08/30159370 DC
DescriptorsGas-powered devices, Hot-water boilers, Boilers, 2nd family gases, 3rd family gases, Selection, Installation, Heating equipment, Position, Boiler rooms, Safety valves, Size, Pipes, Vent pipes, Gas supply, Gas pipes, Ventilation, Flow rates, Flues, Chimneys, Inspection, Commissioning, Condensation
ICS91.140.65
Title in FrenchInstallation des chaudieres a eau chaude utilisant des combustibles gazeux, de puissance utile comprise entre 70 kW et 1.8 MW (2eme et 3eme familles de gaz)
Title in GermanGasbeheizte Warmwasserkessel mit einer Nenneingangsleistung von 70 kW bis 1.8 MW (Gase der 2. und 3. Familie)
CommitteeGSE/30
ISBN978 0 580 64905 9
PublisherBSI
FormatA4
DeliveryNo
Pages52
File Size1.738 MB
Price£254.00


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