22
8.8.3
TYPE C
33
When the boiler is installed as a Type C
33
appliance, the flue system should be installed as follows:
1.
Confirm that the roof flashing is correct for the type of roof through which the terminal is to be installed.
(See
Figure 8.8
)
2.
Determine the desired location for the flue terminal, taking into account minimum distances as detailed in
Figure 8.1
,
Table 8.1
and the relevant British Standards.
3.
Taking care to protect the appliance from debris and dust, drill a hole in the desired location. The diameter
of the hole should be no more than 10mm greater than the diameter of the air supply pipe of the terminal.
NOTE:
The hole should be drilled from the outside to ensure that no damage is done to the roofing material. Extra
care should be taken to ensure that the hole is drilled vertically.
4.
Install the roof flashing and secure as appropriate.
5.
Carefully insert the roof terminal through the roof flashing and hole in the roof.
NOTE:
When inserting the roof terminal do not support or turn the terminal using the cap.
6.
Ensure the terminal is vertical using a spirit level.
7.
Fit the support bracket around the terminal and secure using appropriate fixings. Do not tighten the support
bracket
8.
Fit the concentric adapter (EKB175CE – EKB235CE only) and clamp using its locking band.
9.
Install the remainder of the flue system working progressively away from the boiler supporting the pipes as
necessary.
10.
Once the flue system is fully installed, tighten the clamp to secure the terminal in place.
FIGURE 8.8
VERTICAL TERMINAL ROOF FLASHINGS FOR SYNTHETIC, FLAT AND TILED ROOFS
FIGURE 8.9
INSTALLING TERMINAL THROUGH ROOF FLASHING
