Idea 5 connecting the duct to the bathroom fan.
Easy install bathroom fan.
At this point you will strip the ends of the electrical wires and hard wire them into the unit.
Draw a mark on the bathroom ceiling where you d like to install the vent fan.
Climb into the attic and clear away any insulation from around the hole.
You can use the existing switch wires and ductwork.
Typically either a bare wire or green wire will attach to the side of the metal housing for grounding a critical safety measure.
Switch off the power at the fuse box.
The installation is easiest if you re replacing an existing fan.
In the bathroom insert the fan unit into the housing per the manufacturer s instructions.
For a fan and light switch with existing wiring splice the white wires and connect the grounds securely with wire.
Connect the red wire to one switch terminal and the black wire to the other terminal.
Unplug and remove the old mounting plate and fan motor.
How to install a bathroom fan vent in the soffit.
Measure the ceiling opening and determine if it is large enough to accommodate your new fan.
This way we can make sure both are positioned properly.
Remove the fan cover on the existing bathroom fan.
Next we must slip a worm drive metal clamp on the inside part of duct liner.
Use an extra long 3 8 inch diameter spade bit to bore a reference hole through the ceiling and into the attic.
Don t install it in the wrong spot.
Remove the existing fan leaving the old duct work and wiring.
For optimum performance locate it between the shower and the toilet.
Use the information below to select a fan.
Once you ve chosen the right capacity bathroom vent fan make sure to install it in the right place.
Follow steps 3 10 of the new construction installation to complete.
Connect power to both switches through two pigtails spliced to the feed wire.
Install the decorative plastic grille by slipping its mounting wires into the available slots in the housing unit.
Fans are rated by cfms and sones.
If not you must cut around.
To install a bathroom vent fan upgrade kit.
Check the damper and the screen in prior to installation.
Vacuum out the old housing enclosure to remove any dust.
Remove the tape from the fan first.