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Through Roof Fan Cowls and Fan Kits
INSTALLATION
Aluminium
Screws
Cowl
Roof
Flashing
Tube
FAN TIMER SELECTION
Please use the FAN2444 fan timer model shown
Installation Instructions
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Cut the pliable roof fl ashing sleeve where indicated on the sleeve for the relevant tube size: 150/160mm
Slide the roof fl ashing down over the tube. Water can be used as a lubricant.
Position the top end of the tube into the cowl.
The top edge should sit 20mm inside the cowl.
Drill through the three pilot holes and screw the cowl to the tube.
You can now proceed to the actual roof installation.
Cut a neat hole in the roofi ng material with minimal clearance for the tube.
Insert the tube through the hole.
Apply a neutral cure silicon sealant on the underside of the fl ange.
Turning the fl exible fl ange back makes this simple.
Press the roof fl ashing into the contours of the roof confi guration.
Fasten the roof fl ashing to the roof using the screws supplied (Hex/slot head - 10 pcs).
Drill a 5mm clearance hole in the fl ange for each screw.
The screws can be driven into the roof without the need for a pilot drill hole, or use a 2.5mm drill.
Fit the fasteners progressively outward in opposing pairs to avoid gaps.
Do not use unapproved fasteners (check roofi ng manufacturer recommendations).
Screws supplied are: AS3566.1 1990 Class 3
In certain applications it may be advantageous to install the fl ashing on the diamond or bias.
This particular installation method is especially suitable when having to seal enlarged holes, for penetrations
on steep pitched roofs.
Specifi cations are subject to change without notice
Do not use old model FAN2444 (with resistor) or FAN0372 fan timers
Page 4
Distributed by Simx Limited
PUB1545 2008
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