Leave enough cable at each end to work with.
Install attic fan thermostat.
Installing the shutter if the existing gable vent is smaller than the diameter of the fan you ll need to remove.
Then cut out the circle with a reciprocating saw and mount the fan over the cutout using a drill.
This is when the attic fan will kick in and start removing the hot air.
Installing the shutter center the front of the automatic shutter over the vent hole make sure the shutter s.
With the wiring in place the thermostat switch should work automatically.
If the meter reads anything other than zero stop.
How to attach a thermostat to an attic fan 1.
Check the fan s electrical connections with a voltmeter.
Shut off the power to the fan at the main service panel.
To save time use an existing roof or gable vent to install your new attic fan.
To install an attic fan over a gable vent in your attic trace the body of the fan onto a piece of plywood that s wide enough to mount on the studs on each side of the vent.
To do this screw the thermostat cover in place and use your screwdriver to set the temperature at 105 degrees.
Mount the thermostat in the attic.
Ideally the thermostat should be mounted to.
You now need to set the temperature for the attic fan thermostat switch.
Staple the cable within 8 inches of both the attic light box and the thermostat box.
You also want a fan that s appropriate for the square footage of your attic space by checking the manufacturer s specifications.
Run nm cable from the attic fan thermostat to the attic light.