9
GW 319/0
fig. 4
3.3 Gas supply
The gas supplier should ensure the
availability of an adequate supply of
gas.
A gas meter may only be connected
to the service pipe by the supplier of
gas or their contractor.
An existing meter should be checked
to ensure that it is capable of passing
the rate of gas supply required.
Installation pipes should be fitted in
accordance with BS 6891.
Pipework from the meter to the boiler
must be of an adequate size. Do not
use pipes of a smaller size than the
boiler gas connection (15mm).
The complete installation must be
tested for soundness and purged as
described in BS 6891.
3.4 Flue system
The standard horizontal flue system
(Accy No 300931) is suitable for
installations up to 1 metre measured
from the centre of the boiler flue outlet
to the outside face of the wall
(A, fig. 4). One metre flue extensions
(Accy No 300923) are available to
extend this length up to 6880 mm.
90 ° elbows (Accy No 300934) and
45 ° bends (Accy No 300949) are
also available to increase siting flexi-
bility.
A vertical flue system is also available
(Accy No 300945).
Refer to the flue installation instructions
for full details.
