Mount Fire Detector On Wall Or Ceiling

Install detectors on or as near to the ceiling as possible.

Mount fire detector on wall or ceiling.

Figure a 29 8 3 1 from nfpa 72 national fire alarm and signaling code 2013. Ceiling mounted nac devices are faster and cheaper to install vs wall mounted devices that s the main reason you will see them used. It only takes 10 min or less to install a ceiling mounted device that s from cutting the ceiling tile to snapping in the hanger bar for the electrical box and wiring the unit itself. Ceiling mounted smoke detectors should be mounted at least 6 inches away from where the ceiling meets the wall.

Wall mounted alarms should be installed not more than 12 inches away from the ceiling to the top of the alarm. In either case install the alarm at least 4 inches 100 mm from where the wall and ceiling meet. When installing an alarm on the wall the top edge of alarms should be placed between 4 inches 100 mm and 12 inches 300 mm from the wall ceiling line. The detector may be placed on the ceiling.

When installing an alarm on the ceiling place the alarm as close to the center as possible. If it needs to be mounted elsewhere on the ceiling it must be at least 4 inches from a wall. Find the screws that came with the smoke alarm and the toggle bolts that go on the screws. The latter are what will hold the smoke alarm in place.

Wall mounted detectors must be installed at least 4 inches from the ceiling to avoid this dead air zone. Mount detectors on the wall at least a couple feet below your ceiling or even lower. Keep the detector out of the way of. If you have ceilings that are pitched install the alarm within 3 feet of the peak but not within the apex of the peak four inches down from the peak.

Many smoke detectors are designed to mount to a ceiling but some can also be wall mounted when attaching to a ceiling isn t feasible. Because carbon monoxide is slightly lighter than air and also because it may be found with warm rising air detectors should be placed on a wall about 5 feet above the floor. To install a smoke detector in a suspended ceiling first take down the tile in which you ll be inserting the detector. Avoid corners where the walls meet the ceiling and where pockets of dead air sometimes form preventing rising smoke from reaching the detector.

Carbon monoxide often won t rise all the way up to the ceiling like smoke does until the concentration of the gas is at a critically dangerous level. Do not place the detector right next to or over a fireplace or flame producing appliance. Mount smoke alarms high on walls or ceilings remember smoke rises.