How to Install a Smoke/Carbon Monoxide Alarm
Open the back of the Smoke/carbon monoxide alarm and install the batteries. Usually, there is a diagram on the bottom of the battery well for your reference. Press the TEST button to ensure the alarm is working.
Position the unit on the ceiling or an inside wall, depending on the instructions provided with the alarm. If you’re not certain, a smoke and combina- tion smoke/carbon monoxide alarm is typically installed on a ceiling. A carbon monoxide alarm is typically installed on a wall about five feet above the floor.
Using the back of the Smoke/carbon monoxide alarm as a template, mark the center of the fixture holes with a pencil.
Drill a hole through each of the pencil marks. An electric drill is fast, but any drill will do – make certain to use the proper drill bit size.
If you can tighten screws into a ceiling rafter or wall stud, the next step is easy. However, if there is no reinforcement, install “wall anchors” in the holes with a hammer.
Insert two screws and tighten until the back plate is secure.
Attach the Smoke/carbon monoxide alarm to the back plate. Most units rotate and “snap” into place.
Test the unit once a month – and replace the batter- ies when you change the clocks for daylight savings and daylight standard time.
Press the TEST button (again!) to verify that it oper- ates and can be heard easily.