2011年11月30日 · 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) https://doi.org/10.3403/30229802 (published 30/11/2011)

This British Standard supersedes BS 6644:2005+A1:2008, which is withdrawn. Information about this document This is a full revision of the standard and introduces the following principal changes: • system requirements in accordance with BS EN 12828 have been added; • details on condensing appliances and condensate removal have been added;

bs 6644:2011, ige/up/10 (ed4) 2014 & bs 5440-1:2008, bs 5440-2:2009, BS6644:2011 Specification for the Installation of gas-fired hot water boilers of rated inputs between 70 kW (net) and 1.8 MW (net) (2 nd and 3 rd family gases) &

BS 6644: 2011(2) specifies the design, installation, inspection, commissioning and maintenance requirements, of gas-fired hot water boilers of net rated heat inputs exceeding 70kW but not exceeding a net heat input of 1.8MW.

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) (incorporating corrigendum No. 1) Specifies requirements for the installation, including design, inspection and commissioning. Supersedes BS 6644:2005+A1:2008.

Specifies workmanship, dimensions and performance requirements for diaphragm type valves of nominal size 3/8 and 1/2, intended for use with floats complying with the requirements of BS 1968 and BS... This document references:

BS-6644 › 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 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 – 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) Cross References: BS 779

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) (British Standard) AVAILABLE FOR SUBSCRIPTIONS