Moisture can be a problem in the bathroom. It can cause paint to peel, doors to warp and the accumulation of mold spores. A simple exhaust fan can greatly reduce or eliminate the many problems created by excess moisture.

Reinhart Electric will install a fan/light combination as a replacement for an existing light fixture. The wiring is already in place, so the project requires no special knowledge of electrical wiring. For this installation, the light switch will operate both the fan and the light at the same time.

If you wish to operate the light and fan independently by separate switches, it will be necessary to run a 3-wire cable between the unit and the existing light switch and install a double switch at the electrical box.

Exhaust fans with lights/heaters/and or timers may require additional cable from the existing switch box to the fan. Consult the manufacturer’s instructions. These more sophisticated exhaust fans often include their own timers and switches which are designed to fit the existing switch box.

1.Reinhart Electric will shut off the power to the circuit before we begin any work. Lock out the circuit or the panel so no one can turn the circuit on while Reinhart Electric is working. From the attic, remove any insulation from above the area of the ceiling in which you plan Reinhart Electric to mount the fan. If you are replacing a light fixture with the fan unit, Reinhart Electric will remove the existing fixture and disconnect all electrical connections.

2.Reinhart Electric If possible, places the housing in a position which will allow Reinhart Electric to fasten it directly to a ceiling joist. If this is not possible because of the location of the original light fixture, Reinhart Electric wil install a wooden braces between joists to provide a solid attachment point for the fan housing. Reinhart Electric will Hold the housing in place against the ceiling and mark around it to define the perimeter of the cut. Drill pilot holes in the corners, and cut along the lines with a drywall saw or jigsaw.

3.Secure the fan to joists or braces.

4.Run a length of cable from the existing light switch to the exhaust fan unit. If you wish to have separate switches operating the fan and light functions, use 3-wire cable. If your unit includes a heater and/or timer, additional cable may be required. Consult the manufacturer’s instructions. This step is not necessary if you are replacing an existing fixture and do not require independent switch operation for the fan and light.

5.Make the necessary electrical connections at the fan unit using wire nuts. Follow the wiring diagram provided by the manufacturer. Simple fan installations may only require wiring bare copper to bare copper, white to white and black to black, while more elaborate units with lights and/or fans will require more connections. Attach the ground wire to the grounding clip provided on the housing. Push the wires into the wiring box area of the housing and install the cover.

6.Connect the duct to the fan housing.

7.Follow the instructions of the unit’s manufacturer regarding how far away from the fan the insulation should be kept. Some units allow insulation to be right next to the housing. Others, particularly those with lights or heaters, may require that you add dams between the joists to keep the insulation a minimum distance away from the unit.

8.From inside of the bathroom, install the unit cover.

9.Wire the cable into the existing electrical circuit at the wall switch.