Wiring A Bath Fan Light Combo
It all depends on the specific bath exhaust fan and light combo unit you choose so you must consult the installation manual and wiring directions.
Wiring a bath fan light combo. Connect the black fan wire to the black wire in the 3 cable. Connect the red heat wire to the black wire in the 2 cable. In order for the light to be controlled by its own switch the wiring between the switch and the fan unit needs a fourth wire a red wire to carry power to the light kit. Connect the blue light wire to the red wire in the 3 cable.
You may have wired into. Connect your white wires together and secure with wire nut. Combination switch installation. Before you begin any part of the installation process be sure to carefully read through your combo.
You may also see that the unit requires a dedicated circuit depending on the type of heating system the unit uses. Locate the switch cable which must be glued through the top or side of the box that serves the fan or the light. Because the heat uses a lot more power than the light fan it gets the 2 cable. Connect the black fan cable together with the black light wire and the black switch wire and cover them.
By wiring the two separately you can control each independently resulting in a more efficient bathroom. Attach the red and black wires from the fan light unit to the top terminal screws on the switches. To install your combination light fan and heating unit to a three function switch box in. Connect the two white wires in the switch box together with a wire nut.
Connect two of the black. At the junction box locate the neutral wires and connect to that group the new neutral wire and then locate the the switched leg that returns from the wall switch for the power and connect the black wire for the power then connect this cable to the bath combo exhaust fan. And one easy way to waste electricity is by having a bathroom fan and light that do not work independently. Connect the green wire to your household ground wire copper bare wire.
Using wire strippers peel an inch of insulation from the end of the black and white wires. How do i wire a combination bathroom vent light heater. Connect all grounds together as always color coding.