Manual fire alarm boxes pull stations the height of the manual fire alarm boxes shall be a minimum of 42 inches and a maximum of 54 inches measured vertically from the floor level to the activating handle or lever of the box.
Fire alarm pull station height requirements.
But when the wheelchair user must reach over an obstruction these heights may change.
Alarms should initiate by manual fire alarm boxes commonly called pull stations 14 3 4 2 1 and 15 3 4 2 1 but the code allows for the exclusion of manual boxes in some spaces such as laboratories and cafeterias serviced by an automatic sprinkler system or other detection devices 14 3 4 2 3 1 and 15 3 4 2 3 1.
In addition the requirements for visible fire alarms are required to meet the following standards.
Nfpa 72 requires that manual pull stations be installed within 60 inches of the exit doorway of each exit mounted between 42 inches and 48 inches to the center of the handle and among other things be red in color.
Under the ada audible alarms must have a sound level that is not greater than 110 db.
In addition the pull lever should be within reach range or between 48 inches and 15 inches above the finish floor or ground.
The requirements for manual pull stations as per nfpa 72 are pretty trivial and straight forward.
Manual fire alarm boxes shall be red in color.