SECTION 2
POTTERTON COMMERCIAL PRODUCTS DIVISION
INSTALLATION, OPERATION & MAINTENANCE MANUAL
PAGE 6
NXR3
INSTALLATION
Before starting work a risk assessment should be
carried out in the boiler house and its access to
determine and ensure a safe installation and working
environment.
Any person installing or working on the boiler must be
qualified and competent, and in the case of gas fired
boilers attention is drawn to the mandatory
requirement of C.O.R.G.I registration and relevant
ACS qualifications, they must also be electrically
competent and adhere to the IEE regulations.
Manual Handling – Any person or persons moving or
lifting the boiler or any part of it, should be trained in
manual handling techniques and if necessary use
suitable lifting equipment to reduce the risk of injury to
themselves or other people.
The installation should comply with relevant British
Standard specifications, codes of practice and current
building regulations, together with any special regional
requirements of the local authorities, gas undertaking
and insurance company. All electrical wiring must
comply with the IEE regulations for the Electrical
Equipment of Buildings.
The installation of the boiler must be in accordance
with the relevant requirements of: -
•
Health & Safety at Work Act 1974
•
Building Regulations 2006
•
Electricity at Work Regulations 1989
•
Management of H&S at Work Regulations 1992
•
Manual Handling Regulations 1992
•
Model Water Bye-Laws 1986
•
BS 7671: 1992 – Requirements for Electrical
Installations, IEE Wiring Regulations 16
th
Edition
•
BS 6644: 2005 – Installation of Gas Fired Hot
Water Boilers for Inputs between 60kW and 2MW
•
BS 7074: 1989 – Part 2 – Application, Selection &
Installation of Expansion Vessels & Ancillary
Equipment for Sealed Water Systems
•
BS 6880: 1988 – Code of Practice for Low
Temperature Hot water Systems
•
BS 779: 1989 – Cast Iron Boilers for Central
Heating & Indirect Hot Water Supply (Rated
Output 44kW and Above)
•
CP342.2 – Centralised Hot Water Supply
•
Gas Safety (Installation & Use) Regulations 2002
•
IM/11 Flues for Commercial & Industrial Gas Fired
Boilers & Air Heaters
•
IGE/UP/1 – Soundness Testing & Purging
Procedure for Non-domestic Installations
•
IGE/UP/2 – Gas Installation Pipework, Boosters &
Compressors for Industrial & Commercial
Premises
•
BS EN 303.1 & 303
Manufacturers notes must not be taken in any way as
overriding statutory obligations.
BOILER SITING & BASE
The boiler should be sited in accordance with BS
6644: 2005. This includes considerations for
protecting the boiler from damage, air for combustion,
clearances for service and access, temperatures,
noise levels, the disposal of boiler water and the
effects of flooding of the boiler house or seepage from
a roof top boilerhouse. See Fig. 3 for required boiler
clearances for service and access.
A level non-combustible floor capable of supporting
the weight of the boiler filled with water, see Table 3,
together with any additional weight bearing down on
the base from connections, burner, etc, must be
provided. This should be of an adequate height above
the floor so as to be raised in case of flooding, but
also low enough to allow ease of erection. Typically a
50mm concrete plinth with an area equal to that of the
plan of the boiler is adequate in most cases.
For certain special installations a sound proof plinth
may be necessary and a metal plinth resting on anti-
vibration pads is recommended in these instances.
Consideration should also be given to fitting steel
strips beneath the boiler feet for boiler base
protection, see Fig. 3 for base details.
The boiler has a water-cooled base and no special
insulation is required. When preparing a site,
reference should be made to Local Authorities and
Building regulations 2006.
L.P.G boilers should not be installed in
basements/below ground or in a well.