5. If an alarm is installed onto a wall, a distance of 4-12 inches (10-30 cm) should be kept below the
ceiling.
6. If the length of a room or hall is beyond 30 feet (900 cm), several alarms should be installed in the
same room.
7. When the wall or ceiling is angled, the alarm needs to be installed within 3 feet (90 cm) of the highest
wall or ceiling point (measured horizontally) in the room.
① CEILING
② SIDEWALL
③ 20″ (50 cm) MINIMUM
④ 4″ (10 cm) MINIMUM
⑤ 12″ (30 cm) MAXIMUM
⑥ BEST HERE
⑦ DEAD AIR SPACE
⑧ NEVER HERE
⑨ ACCEPTABLE HERE
⑩ NOT IN THIS AREA
⑪ ANYWHERE IN THIS AREA
⑫ 4″ (10 cm)
⑬ 3 ft (90 cm)
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