21
Grant Vortex Outdoor Module
3 The oil supply line should be installed up to the
position of the boiler. Refer to Section 3.3.2 for
details. The final connection into the boiler enclosure
can be made with 10 mm soft copper, routed along the
base of the enclosure (either between the enclosure
and wall or in front of the enclosure) to enter through
one of the holes located in the bottom edge side panel,
at the front (burner) end.
See Fig. 15
Where it is not practical to use the factory supplied
low level flue, the Vortex Outdoor Module may be
fitted with a vertical flue system.
A twin wall stainless steel insulated flue system is
available from Grant UK.
An insulated boiler connector elbow, complete with
test point, replaces the low level terminal and flue
guard supplied with the boiler.
The Grant Vertical flue system connects to the elbow
and may terminate at high level or vertically as
required. See Fig. 15.
1 The flue must terminate in a down draught free area,
i.e. at least 600 mm above the point of exit through the
roof or preferably above the ridge level.
2 The condensate may be allowed to run back into
the boiler. A condensate drain at the base of the
flue system is not required.
3 The flue terminal must be at least 600 mm from
any opening into the building, and 600 mm above
any vertical structure or wall less than a horizontal
distance of 750 mm from the terminal.
It is important to ensure that the flue system is sealed
and that condensate cannot escape. Up to 1.5 l/h of
condensate can be produced in a conventional flue
system.
5 - BOILER INSTALLATION
Conventional flue - Green system
5.3
15/26 model
Item
Starter elbow
150 mm extension
250 mm extension
450 mm extension
950 mm extension
195-270 mm adjustable extension
45° elbow
High level terminal
Vertical terminal
Wall bracket - standard
Wall bracket - extended
Part No.
GKM90
GX150/90
GX250/90
GX450/90
GX950/90
GXA250/90
GE45/90
GTH90
GTV90
GWB90
GEB90
26/36 and 36/46 models
Item
Starter elbow
150 mm extension
250 mm extension
450 mm extension
950 mm extension
195-270 mm adjustable extension
45° elbow
High level terminal
Vertical terminal
Wall bracket - standard
Wall bracket - extended
Part No.
GKM200
GX150/200
GX250/200
GX450/200
GX950/200
GXA250/200
GE45/200
GTH200
GTV200
GWB200
GEB200
The following components are available from Grant UK.