SITE REQUIREMENTS
.0
-
he appliance maY be fitted to any suitable wall with
the flue passing through .an outside wall and
.discharging to atmosphere in a position permitting
7 "[Satisfactory removal of combustion products and
.:
.
fProviding an adequate air
.
supply. The appliance
:.should be fitted within the building unless otherwise
::protected by a suitable enclosure ie. garage or
'.:.cauthouse.
lithe appliance is to be fitted into a building of timber
::frarne construction then reference must be made to
.:British Gas document DM2.
RecornmendatiOnS for flues are given in BS 5440 Pt. 1.
'SS
.
A flat vertical area
le
required for the installation of the
'boiler measuring aS shown in the table below for each
Height
Width
Model
mm (in) mm (in)
30/4
800 (31
1
/
2
)
410 (161/)
40/4
800(311/2)
410 (161/8)
50/4
800(3172)
410(15h/)
70/4
850 (337
2
)
480 (1874)
obstructions such as joists running
parallel to the front face of the appliance.
clearances to the side of the installation equal to the
length of the flue reqUired including the terminal (ie flue
length + 65mm (2V2in)).
Model:
These dimensions include the
'necessary clearances around the
appliance for case removal, spanner
access, air movement:
Additional clearances may be required
for the passage of pipes around local
Installations flued to the left or right require extra
(SNP
An internal fitting kit is provided with the appliance for
installations where the flue terminal is inaccessible
from the outside.
The following guide lines indicate the general
.requirements for siting balanced flue terminals.
If the terminal is fitted within-1 metre (39in) of a plastic
gutter, within 500mm (197
2
in) of a painted eave or a
painted gutter, an aluminium shield of at least 1 metre
(39in) long should be fitted to the underside of the
gutter or painted surface. An air space of 5mm (116in)
should be left between shield and gutter.
If the terminal discharges onto a pathway or
passageway, check that combustion products will not
cause a nuisance and that the terminal will not obstruct
the passageway.
If the outer surface of an outside wall is of combustible
material, it should be protected by fitting a non-
combustible plate so that it extends not less than
50mm (2in) around the terminal.
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