Grant Vortex Outdoor Module - Fuel Supply Requirements; Fuel Storage Guidelines; Fuel Pipe Specifications; Single Pipe Fuel System

11
Grant Vortex Outdoor Module
4 - GENERAL BOILER INFORMATION
4 A metal bowl type filter with a replaceable
micronic filter must be fitted in the fuel supply line.
A shut-off valve should be fitted before the filter,
to allow the filter to be serviced.
5 A flexible fuel line, adaptor and
1
/
4
" BSP isolation
valve are supplied loose with the boiler for the
final connection to the burner. If a two pipe system
or Tiger Loop system is used, an additional flexible
fuel line and
3
/
8
" to
1
/
4
" BSP male adaptor are
available from Grant Engineering (UK) Limited.
6 Flexible pipes should be inspected annually when
the boiler is serviced and replaced every two years.
4.4.3 Single pipe system - (See Fig. 2)
1 Where the storage tank outlet is above the burner
the single pipe system should be used. The height
of the tank above the burner limits the length of
pipe run from the tank to the burner.
2 As supplied the burner is suitable for a single pipe
system.
4.4.1 Fuel storage
The tank should be positioned in accordance with the
recommendations given in BS 5410:1:1997, which gives
details of filling, maintenance and protection from fire.
A galvanised tank must not be used.
A plastic tank may be used and must comply with
OFS T100.
Note: Plastic tanks should be adequately and
uniformly supported on a smooth level surface, across
their entire base area.
4.4.2 Fuel pipes
1 Fuel supply pipes should be of copper tubing with
an internal diameter of at least 8 mm.
Galvanised pipe must not be used.
2 Flexible pipes must not be used outside the boiler case.
3 A remote sensing fire valve must be installed in the
fuel supply line, with the sensing head located above
the burner. Recommendations are given in BS
5410:1:1997.
Fuel supply
4.4
Regional statutory requirements may deem this appliance to be a 'controlled service'. Where this is
the case, it is a legal requirement that the appliance is installed and commissioned either under the
remit of building control or by a 'Competent person' such as a suitably qualified Oftec registered
technician.
Fig. 2 - Single pipe system