How To Wire A Roof Vent Fan

Choosing a whole house fan.

How to wire a roof vent fan.

The lower half of the flange sits on top of the shingles. Before you start step 6 and step 7 make sure to turn off power at your circuit breaker box before you begin any wiring. Insert the end of the 12 2 wire into the fans junction box. Draw a circle on the roof matching the diameter of your fan.

The pilot hole you drilled should be in the center of the circle. Slide the vent under the shingles so they cover the top half of the vent flange. Installing a fantastic rv vent on the roof of your rv is a pretty simple job when replacing an existing vent with 12 volt wiring nearby. Then get on the roof and draw the circle around the pilot hole with a piece of chalk.

To install a roof adaptor cut and clean the hole in the roof as you would normally. The ground wire will need to be ran to a bare metal surface and the power wire will need to be ran directly to the battery it does not go to a thermostat as the controls for the unit are on the bottom. Afterward install the vent fan flange as you normally would. How to install a fantastic vent.

There are only two wires on the fan tastic vent roof vent w 12v fan part fv801208 a white wire which is the ground and then a black wire which is the power. Apply a bead of asphalt roof cement on the bottom of the vent. These specialty vents do not affect the. Wrap the joints with duct tape.

Strip away about 6 inches of outer insulation and 1 2 inch of individual insulation from the end of each wire. Then cover the bottom of the adaptor with 3m marine sealant and clamp it to the roof until dry. This is normally fastened to the ceiling with 4 screws. Use a tape measure to determine the diameter of your fan or check the manufacturer s specifications.

Rafter vents or insulation baffles install in any rafter space to create narrow gaps that direct fresh air from the soffit vents to the peak of the roof. Connect and wire the fan slide clamps over the flexible duct at both the roof cap and the fan housing then slip the clamps over the tailpieces of the roof vent and fan and tighten the clamps.