ROOM SEALED FLUE OPTIONS
I
NSTALLATION & SERVICING INSTRUCTIONS FOR WORCESTER GREENSTAR CAMRAY KITCHEN 12/18-18/25-25/32
8 716 113 000a (01/07)
17
PRE -
INSTALLATION
R
OOM 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 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°
E - Vertical Terminal Kit (incl. 90° elbow)
Calculating the flue length:
Measure the total flue length required, noting
that the max
imum straight flue length including
the terminal is:
Horizontal 80/125mm Ø: 4000mm (excluding
120mm of terminal extending outside the building)
Vertical 80/125mm Ø & 100/150mm Ø:
8000mm (measured from the boiler top panel).
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:
Horizont
al 80/125mm Ø: 720mm
Vertical 80/125mm Ø: 1080mm + cage
V
ertical 1
00/
150mm Ø: 1290mm + cage
* to outside wall.
** The 180/125 to 100/150mmØ vertical
adaptor must be fitted vertically at the lowest
point of the vertical section of the flue.
Failure to fit the adaptor vertically will cause
the condensate to pool within the flue and
will adversely affect the flue’s per
formance.
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