Replace Attic Ventilation Fan

Attic fans perform this ventilation by pushing hot air out into the environment while also pulling fresh cool air into the attic.

Replace attic ventilation fan. Attach a cable clamp and insert all the cables through the. An attic with 1 500 square feet x 7 1 050 cfm make sure you also have adequate air intake typically through the undereave vents. The result is a cooler attic space with plenty of air exchange. 1 square foot of intake for every 300 cfm of ventilator.

Step 3 remove the motor. Remove the screws or bolts that hold the attic exhaust fan in place. Roof vent fans or attic fans as they are often called are constructed so that replacement does not have to be done by crawling onto the roof. Turn off the branch circuit breaker on the service panel supplying power to the attic ventilation fan.

Step 2 install your new attic fan. Remove the screws holding the cover on the electrical connections box using a flat blade or phillips head screwdriver. 1 170 cfm ventilator 300 3 9 square feet of intake ventilation this is the minimum intake required. Remove the old ventilation.

You will need to clip the wiring that powers the attic exhaust fan. How to replace an attic ventilation fan 1. Attach the regulator into a rafter. How to replace the fan motor in a roof vent fan.

However before you do so open the cover of the exhaust fan motor and use a test light or multimeter to ensure that no power is running to the unit. A rule of thumb. This american designed fan is designed to reduce attic temperatures and remove destructive moisture thus making your home more comfortable and reducing the load on your hvac system and lowering your.