7
A gas leak could potentially cause an
explosion. If you smell gas, observe the
following rules:
► Prevent flames or sparks:
- Do not smoke, use a lighter or strike
matches.
- Do not operate any electrical switches or
unplug any equipment.
- Do not use the telephone or ring
doorbells.
► Turn o the gas at the meter or regulator.
► Open windows and doors.
► Warn your neighbors and leave the building
► Prevent anyone from entering the building.
► Call the National Gas Emergency Service on
0800 111 999 (From a location away from
the gas leak).
L.P.G. boilers: Call the supplier’s number on
the side of the gas tank or cylinder.
It is law that all gas appliances are installed and serviced by a Gas Safe registered
competent engineer, if in any doubt please check with Gas Safe (0800 408 5500)
and in accordance with the following recommendations:
► Current Gas Safety (Installation and Use) Regulations
► All current building regulations
► Building Standards (Scotland) Consolidated
► I.S.813 Installation of Gas Appliances (Ireland)
► IET Wiring Regulations (BS 7671)
► Health and Safety Document (Electricity at Work Regulations)
► UK Water fittings Regulations and Byelaws
► Health & Safety Regulations
2.1 General
2.2 The installation
The installation must comply with the following British Standards codes of practice:
► BS 5440: Flueing and Ventilation for gas appliances of rated input not exceeding 70kW (Part 1 Flues)
► BS 5440: Flueing and Ventilation for gas appliances of rated input not exceeding 70kW (Part 2 Air Supply)
► BS 5546: 2010 Specification for installation and maintenance of gas-fired water-heating appliances of a
rated input not exceeding 70Kw net.
► BS EN 12828:2012+A1:2014 Heating systems in buildings. Design for water-based heating systems
► BS EN 806-1:2000 Specifications for installations inside buildings conveying water for human consumption.
General (802-2 Design, 806-3 Pipe sizing, 806-4 Installation, 806-5 Operation and maintenance).
► BS 6798: 2014 Specification for selection, installation, inspection, commissioning, servicing and
maintenance of gas-fired boilers of rated input not exceeding 70kW net
► BS 6891: 2015+A1:2019 Specification for the Installation and maintenance of low pressure gas installation
pipework of up to 35mm (R1 1/4) on premises
► BS 7593: 2019 Code of practice for the preparation, commissioning and maintenance of domestic central
heating and cooling water in systems
► BS 7671: 2018 Requirements for electrical installations, IET Wiring regulations
► BS 5955-8:2001 Plastic pipework (thermoplastics materials). Specification for the installation of
thermoplastic pipes and associated fittings for use in domestic hot and cold services and heating systems
in buildings.
Reference should also be made to:
► Guide to condensing boiler installation assessment procedures for dwellings (SBSA)
► The institute of Gas Engineers document & managers IGE/UP/7 Gas installations in timber frame and light
steel framed buildings.
2 SAFETY REGULATIONS
Safety precautions If you smell gas
Depending on the year of construction, an Intergas HR boiler may contain part(s)
in which ceramic fibers are used. Always use the recommended personal
protective equipment when working with ceramic fibers.
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