12 AIR DUCT CONT'D....
Where ducting the air from outside is not practical it can be drawn
from the boiler room by assembling the air inlet pipework as follows
into the conguration shown in g 1.
1. Fit the 93º elbow into the boiler air inlet pipe.
2. Fit the 112.5º bend into the 93º elbow.
3. Fit the 110 dia. x 330mm tube into the 112.5º bend.
4. Fit the air inlet grille to 110 dia. tube and x with the 3 off self
tapping screws provided.
5. Using the existing screws holding the upper or centre back panel
to the boiler, t the support bracket assembly and re-tighten the
screws.
6. With the air inlet pipe assembly in position, retain it with the pipe
clamp, xed with the 2 off M5 screws provided.
With this kit tted the maximum straight ue length available and
maximum pressure available at the base of the ue to overcome
ue resistance will change, refer to the appropriate table on page 5.
Fig 1
5
4
6
3
2
1
INSTALLATION
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