Silent Call SD4-SS - Manual (Page 9)

9
Best location
Acceptable location
Dead
Air
Space
Best in
center of
ceiling
No closer than 4 inch
(10 cm) from side wall
Mount on wall at least 4 inch
(10 cm) from ceiling
No more than 6 inches
(15 cm) from ceiling
Figure 4: recommended smoke detector mounting locations.
• Put a smoke detector at both ends of a bedroom hallway if the hallways
is more than 40 feet (12 meters) long.
• Put basement detectors at the bottom of the basement stairwell.
• Put second-floor detectors at the top of the first-to-second floor stairwell,