Step 8 install the thermostat box cover and use the screwdriver to set the thermostat so that the fan will kick on when the attic reaches 105 degrees.
Attic air vent thermostat wiring.
An internal thermostat activates the fan when a set temperature is.
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Connect the black thermostat wire to the black cable wire the white thermostat wire to the white cable wire and the ground wire to the green ground screw in the box.
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Mount the thermostat in the attic.
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Strip away about 3 4 inch of the insulation and use a wire nut to connect all the white wires.
Ideally the thermostat should be mounted to a rafter along the wiring path and away from the draft of the fan.
The inexpensive fans can help reduce heating and cooling costs by evacuating superheated or cold air from your home s attic area.
Black to black white to white.
Then run the wiring to your attic fan strip another 8 inches at that end and connect the wire to the thermostat.
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Wiring up a thermostat to a fan.
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Then wrap the green wire around the grounding screw inside the thermostat box.