Step 1
Line Diffuser Installation Instructions
Pre-position the ventilation duct in the ceiling
void, above, through, or alongside the ceiling
joists. If required, purchase reducer(s) to suit
the size of duct and spigots (by others).
Step 2
Fit temporary batons with plasterboard
spacers that are the same thickness as the
final ceiling plasterboard sheet. Where metal
plasterboard rails are employed, suitable self
tapping screws will be required.
Step 3
Fit pre-assembled* diffuser, plenum box and
spigot(s) on top of temporary batons. Note
that spigot (by others) is surface mounted on
plenum using self-tapping screws and
silicone.
*Using screws provided
Step 4
Fix plenum to upper surface using proprietary
fixings (Unistrut etc) (by others). Fix to
plenum with self-tapping screws. Adjust
height of the plenum so that the face of the
diffuser just touches the top of the batons.
Step 5
Remove temporary batons and plasterboard
spacers. Measure and cut the hole in the
main plasterboard sheet. Lift the
plasterboard sheet to meet the diffuser and
fix in place as normal using plasterboard
screws.
Step 6
From the underside, use a jointing compound
to fill the gap between diffuser and
plasterboard. If required, move magnetic
blocks to desired length and fix in place using
jointing compound. Sand and paint.
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