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· Create an opening of 155 mm. in diameter in the outer wall (in a flammable external wall, provide for 50
mm. extra space all round the outer pipe) and mount the horizontal terminal with the wall plate on the in-
side of the wall. On the outside, the wall plate of the horizontal terminal must be sealed sufficiently to the
wall to prevent the possibility of damp and/or flue gases entering the living space.
· If necessary, the duct can be enclosed in a pipe. Adequate fire resistant measures must also be taken if the
duct is to be mounted against flammable materials.
· Determine the position of the fire and the outlet and start construction of the duct with the connection to
the fire. Note the direction of mounting (black sealing rings facing upward), and connect the elements to-
gether by means of the locking bands.
· Fit a 90° bend directly to the horizontal terminal and make the connection with the elements on the appli-
ance. Ensure that all connections are fully gastight.
· A fitted sleeve can be used between bends or for the connection to the fire. Use wall brackets to support
the duct, if necessary.
Installation of the vertical terminal
· The outlet can be placed at any arbitrary position on the roof surface (inlet and outlet in identical pressure
areas) but must comply with the current regulations.
· Use a flat roof panel for flat roofs, or a lead roof panel for sloping tiled roofs to ensure a watertight feed-
through. This can be sloped with the aid of various bends, if necessary.
The opening in the roof decking must be 5 cm. larger all round to ensure sufficient fire resistance. Adjust-
able roof plates can also be used against the roof decking.
· The regulations in the Buildings Decree state that NEN 6068 (determination of the resistance to fire pene-
tration between rooms) must be taken into account. An enclosing pipe of fireproof material (e.g. 12 mm.
Promatect fire resistant sheet) must be used as from a distance of 25 mm. from the outer duct.
· Determine the position of the fire and the outlet and start the construction of the duct with the connection
to the fire (always 1 metre vertical first). Note the direction of mounting (black sealing rings facing up-
ward), and connect the elements together by means of the locking bands. Ensure that all connections are
completely gastight.
· A fitted sleeve can be used between bends or for the connection to the fire. Use 2 wall brackets on each
storey to support the duct.
