Installation Requirements – page 3
GENERAL
The installation must be carried out by a Corgi Registered
Installer or other competent person and be in accordance with
relevant BS Codes of Practice, I.E.E. Regulations, Gas Safety
Regulations, Building Regulations and by-laws of the Local
Water Undertaking. References should be made to BS 6891,
BS 6798, BS 5440 Pt 1 & 2, BS 5449, BS 5546 and BS 1363.
IMPORTANT INFORMATION
This product contains Refractory Ceramic Fibres (R.C.F.) which
are man-made vitreous silicate fibres. Excessive exposure to
these materials may cause temporary irritation to eyes, skin and
respiratory tract. Care must be taken when handling these
articles to ensure the release of dust or fibres is kept to a
minimum. To ensure that the release of fibres from these
articles is kept to a minimum, during installation and servicing it
is recommended that a H.E.P.A. filtered vacuum is used to
remove any dust, soot or other debris accumulated in and
around the appliance. This should be performed before and
after working on the installation. It is recommended that any
replaced item(s) are not broken up but sealed within heavy duty
polythene bags and clearly labelled “R.C.F. waste”. This is not
classified as “hazardous waste” and may be disposed of at a
tipping site licensed for the disposal of industrial waste.
Protective clothing is not required when handling these articles
but it is recommended that gloves are worn and the normal
hygiene rules of not smoking, eating or drinking in the work area
are followed and always wash hands before eating or drinking.
SITING
The boiler must be fitted on a suitable outside wall, the position
permitting a satisfactory flue location and an adequate air
supply.
A new or existing cupboard or compartment used to enclose the
boiler must be constructed specifically for this purpose.
Details of essential features of cupboard! Compartment
design are given in BS 5440:2.
CLEARANCES
for air movement, case removal and spanner access.
TERMINAL GUARD
When codes of practice dictate the use of a terminal guard, they
can be obtained from most plumbers and builders merchants
nationwide.
When ordering a terminal guard, quote the appliance model
number.
The guard manufacturers listed below can be contacted for
terminal sizes and guard model numbers.
VENTILATION
Detailed recommendations for air supply are given in
BS 5440:2.
The room in which the boiler is installed does not require a
purpose provided air vent. When the boiler is installed in a
purpose made cupboard, air vents are required (for cooling
purposes) at high and low level. These vents may communicate
with a room or direct to outside air.
The minimum effective area requirements of
cupboard/compartment air vents are as follows:
FLUE ARRANGEMENT
A range of flue ducts is available to suit different wall
thicknesses.
Wall thickness
1)
286mm (11¼ in) to 371mm (14
5
/
8
in).
This is the standard
length supplied with the boiler.
2)
108mm (4¼ in) to 286mm (11¼ in).
When using this flue
duct both the outer and inner ducts on the flue terminal
must be shortened when the wall thickness is less than
200mm (7
7
/
8
in).
3)
371mm (14
5
/
8
in) to 457mm (18 in)
long flue kit.
The Balanced Flue Terminal is designed such that it must be
fitted from inside the building.
1)
The air inlet/products ducts must be square and horizontal
to the inner wall face.
2)
The hole size required for the flue is:
275mm (10
7
/
8
in) wide x 345mm (13
5
/
8
in) high.
3)
A trim is supplied which may be fitted around the terminal.
Balanced flue siting requirements
The following guidelines indicate the requirements for siting of
Balanced Flue Terminals:
1)
On a clear expanse of outside wall, preferably not less
than 600mm (2ft) from a corner, recess or projection.
2)
Not less than 300mm (1 ft) vertically beneath an openable
window or ventilator.
3)
Not less than 600mm (2ft) from any surface facing the
terminal.
4)
Not less than 300mm (1ft) above ground level.
5)
Not immediately beneath eaves or a balcony.
6)
If the terminal is less than 2m (6ft) above the ground or a
balcony to which people have access the terminal should
be protected by a guard.
7)
If the outer surface of an outside wall is of combustible
material it should be protected by fitting a non-combustible
plate which extends not less than 50mm (2in) around the
terminal.
Quinnell, Barrett & Quinnell,
884 Old Kent Road,
London, SE15 1NL.
Tel: 0171 639 1357.
Tower Flue Components Ltd.,
Tower House, Vale Rise,
Tonbridge, Kent.
Tel: 01732 351555.
