7
Classic LX, RS -
Installation
GENERAL
FLUE INSTALLATION
The flue must be installed in accordance with the
recommendations of BS. 5440:1.
The following notes are intended for general guidance:-
1.
The boiler MUST be installed so that the terminal is exposed
to external air.
2.
It is important that the position of the terminal allows the free
passage of air across it at all times.
3.
Minimum acceptable spacing from the terminal to
obstructions and ventilation openings are specified in
Table 3.
Table 3 - Balanced flue terminal position
Timber Framed Buildings
If the boiler is to be fitted in a timber framed building it should be
fitted in accordance with the Institute of Gas Engineering document
IGE/UP/7:1998.
Bathrooms
The boiler may be installed in any room or internal space, although
particular attention is drawn to the requirements of the current I.E.E.
(BS 7671) Wiring Regulations and, in Scotland, the electrical
provisions of the building regulations applicable in Scotland with
respect to the installation of the boiler in a room or internal space
containing a bath or shower.
Where a room-sealed appliance is installed in a room containing
a bath or shower then the appliance and any electrical switch or
appliance control utilising mains electricity should be so situated
that it cannot be touched by a person using the bath or shower.
Where installation will be in an unusual location, special procedures
may be necessary and BS.6798 gives detailed guidance on this
aspect.
Compartment Installations
A compartment used to enclose the boiler MUST be designed
and constructed specially for this purpose.
An existing cupboard or compartment may be used, providing it is
modified for the purpose.
In both cases details of essential features of cupboards/
compartment design, including airing cupboard installation, are to
conform to the following:
z
z
z
z
z
BS. 6798.
z
z
z
z
z
The position selected for installation MUST allow
adequate space for servicing in front of the boiler
and for air circulation around the boiler, see section on 'Air
Supply'.
z
For the minimum clearances required for safety, and
subsequent service, see Frame 2. In addition,
sufficient boiler clearance may be required to allow
lifting access to the wall mounting plate.
GAS SUPPLY
The local gas supplier should be consulted, at the installation
planning stage, in order to establish the availability of an adequate
supply of gas. An existing service pipe must NOT be used without
prior consultation with the local gas supplier.
A gas meter can only be connected by the local gas supplier or by
a local regional contractor.
An existing meter should be checked, preferably by the gas
supplier, to ensure that the meter is adequate to deal with the rate
of gas supply required. A
minimum
gas pressure of 20 mbar MUST
be available at the boiler inlet, with the boiler operating.
Installation pipes MUST be fitted in accordance with BS. 6891.
Pipework from the meter to the boiler MUST be of an adequate
size.
The complete installation MUST be tested for gas soundness and
purged as described in the above code.
Terminal Position
Minimum Spacing
1.
Directly below an
opening window, air vent or other
ventilation opening
300 mm (12")
2.
Below guttering, drain pipes or soil
pipes
300 mm (12")
3
. Below eaves
300 mm (12")
4.
Below balconies or a car port roof
600 mm (24")
5.
From vertical drain pipes or soil pipes
75 mm
(3")
6.
From internal or external corners
600 mm (24")
7.
Above adjacent ground, roof or
balcony level
300 mm (12")
8.
From a surface facing the terminal
600 mm (24")
9.
From a terminal facing a terminal
600 mm (24")
10.
From an opening in a car port
(e.g. door or window) into dwelling
1200 mm (48")
11.
Vertically from a terminal on the
same wall
1500 mm (60")
12.
Horizontally from a terminal on the wall
300 mm (12")
4.
Where the lowest part of the terminal is fitted less than 2m
(6' 6") above a balcony, above ground or above a flat roof to
which people have access then the terminal MUST be
protected by a purpose designed guard.
Terminals guards are available from boiler suppliers - ask for
Tower Flue Guard Model K1. In case of difficulty seek
advice from:
Tower Flue Components Ltd.,
Vale Rise, Tonbridge, Kent. TN9 1TB (Model C)
Telephone No. 01732 351 555
Ensure that the guard is fitted centrally.
5.
Where the terminal is fitted within 1000mm (39
1/2
") of a
plastic or painted gutter or 500mm (19
1/2
") of painted eaves
then an aluminium shield at least 1000mm (39
1/2
") long
should be fitted to the underside of the gutter or painted
surface.
6.
The air inlet/products outlet duct and the terminal of the
boiler MUST NOT be closer than 25mm (1") to combustible
material. Detailed recommendations on the protection of
combustible material are given in BS.5440: 1990.
Summary of Contents for Classic LXRS 230
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