Instruction manual

ROOM SEALED FLUE OPTIONS
The diagrams (opposite) show the components
used and the maximum flue length (L) for
each flue configuration.
In all cases L is measured from the outside of
the boiler casing.
• To achieve the maximum flue length (L), a flue
section will have to be reduced in length.
• Only the flue terminal or straight flue
extensions can be reduced in length by
cutting.
• The horizontal flue terminal end can be fitted
from the inside or outside of the building.
IMPORTANT:
All horizontal sections must rise away from
the boiler by 52mm per metre (3°) to allow
the condensate to drain back to the boiler.
A - Horizontal terminal
B - Straight flue extension
C - Flue bend 90°
D - Flue bend 45° X 2
E - Vertical terminal
Calculating the flue length:
Measure the total flue length required, noting
that the maximum straight flue length
including
the terminal is:
Horizontal 80/125mm Ø: 4000mm (excluding
120mm of terminal extending outside the building)
Vertical 80/125mm Ø: 6000mm.
Then reduce the total straight flue length for
each extra flue bend (excluding the vertical flue
kit 90° elbow) by:
1000mm for 90°
500mm for 45°
Flue Extension lengths:
Horizontal & Vertical 80/125mm Ø: 1000mm
overall length.
Effective length when engaged into sockets
within the flue run is 950mm.
Flue Terminal lengths:
Horizontal 80/125mm Ø: 720mm
Vertical 80/125mm Ø: 1080mm + cage
* to outside wall.
AC
B
D
E
A
B
C
X 4
A
B
C
X 4
A
B
C
X 4
X 2
E
BX 6
E
BX 4
E
BX 3
X 2
L
L
L
L
L
L
PRE -
INSTALLATION
ROOM SEALED FLUE
OPTIONS
INSTALLATION & SERVICING INSTRUCTIONS FOR WORCESTER GREENSTAR DANESMOOR WALL MOUNTED OIL 12/18-18/25
8 718 681 134a (08.08)
18
L = 4000mm
L = 4000mm
L = 3000mm
L = 5000mm
L = 6000mm
L = 4000mm