Check the fan s electrical connections with a voltmeter.
Install attic fan thermostat.
Run nm cable from the attic fan thermostat to the attic light.
How to attach a thermostat to an attic fan 1.
To do this screw the thermostat cover in place and use your screwdriver to set the temperature at 105 degrees.
Then cut out the circle with a reciprocating saw and mount the fan over the cutout using a drill.
Installing the shutter if the existing gable vent is smaller than the diameter of the fan you ll need to remove.
Mount the thermostat in the attic.
To save time use an existing roof or gable vent to install your new attic fan.
If the meter reads anything other than zero stop.
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.
Use the hammer and staples to secure the cable to the joists at 12 inch intervals.
With the wiring in place the thermostat switch should work automatically.
Ideally the thermostat should be mounted to.
Installing an attic fan step 1.
This is when the attic fan will kick in and start removing the hot air.
Staple the cable within 8 inches of both the attic light box and the thermostat box.
Installing the shutter center the front of the automatic shutter over the vent hole make sure the shutter s.
Leave enough cable at each end to work with.
This way you don t have to cut a brand new hole but simply make the hole for the vent larger so it can accommodate the fan.