Wiring powered attic fans is usually as simple as running power from the existing attic light fixture.
Attic fan wiring installation.
Turn off the power to the circuit.
Test the wires in the junction box to determine if it contains a continuous circuit.
Draw a circle on the roof matching.
Use the voltage meter by.
Installing power attic fans.
Drill a pilot hole through the roof where you want your fan to go.
Installing the shutter center the front of the automatic shutter over the vent hole make sure the shutter s.
Installing the fan on a plywood mounting panel is a good idea because it keeps the fan blades away from the wall and it enables you to center and secure the assembly with little concern for the underlying framing.
Locate an existing circuit close to the fan s location.
Cut a piece of plywood to a size that will accommodate the attic framing that surrounds the vent hole.
Attach the black wire to the top brass screw on the switch.
Installing the shutter if the existing gable vent is smaller than the diameter of the fan you ll need to remove.
How to wire a attic fan 1.
That way you ll be able to tell where to cut out.
Attic lights ceiling lights and attic junction boxes are.
It is critical to install the fan in such a way as to seal openings and leaks around the fan itself.
If you need to create a new hole for the fan the wiring may actually be the easiest part.
Installing an attic fan step 1.
Turn off the electricity in your attic.
Install wire to the fan from the switch box.
Attach the ground wire to the ground screw on the switch.