External Horizontal Conventional Flue (Green System) - Grant Vortex Series Installation And Servicing Instructions

9.5 EXTERNAL HORIZONTAL
CONVENTIONAL FLUE (GREEN
SYSTEM)
This option uses the Grant Green system External Module straight
starter section (GKM90C for models up to 26kW or GKM200C for
models ranging from 26-70kW), replacing the low level terminal
and flue guard supplied with the boiler, along with components
from the Grant Green system. See Figure 9-4.
It is possible to extend the flue horizontally by a maximum of 3
metres in total flue length by using the green system. A maximum
of two 45° elbows may be utilised when extending the flue using
this system.
For further information on the connection of the Green system,
please refer to Section 9.4.
Garden wall
Figure 9-4: Horizontal external flue
Page 30
Extensions
45° elbows
Straight
terminals
! NOTE !
The flue system from the external module can be extended
either vertically OR horizontally by using the Green
System.
NOT a combination of both.
A complete list of Grant Green system flue components can be
found in Figure 9-3 and Table 9-2.
Information on the siting of the flue terminal can be found in
Section 9.6.
Maximum horizontal
length 3 metres
Straight
starter
Section 9: Flue System and Air Supply
Outdoor
module
Garden wall