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horizontally. Mounting the alarm on the ceiling in the
centre of the room places it closest to all points in the
room. Ceiling mounting is preferred in ordinary
residential construction. When mounting an alarm on
the ceiling, locate it at a minimum of 10cm (4”) from
the side wall (see Diagram A). If installing the alarm on
the wall, use an inside wall with the top edge of the
alarm at a minimum of 10cm (4”) and a maximum of
30.5cm (12”) below the ceiling (see Diagram A).
• Please refer to page 29 for information on CO
installation in reference to BS7860-1996.
Sloped Ceiling Installation:
Install Smoke Alarms on sloped, peaked, or cathedral
ceilings at, or within 0.9m (3 ft.)of the highest point
(measured horizontally). Smoke alarms in rooms with
ceiling slopes greater than 0.3m to 2.4m (1 to 8 ft.)
horizontally shall be located on the high side of the
room. A row of alarms shall be spaced and located
within 0.9m (3 ft) of the peak of the ceiling measured
horizontally. (See Diagram B).
12
Operating/Installation Instructions
BEST HERE
NEVER HERE
ACCEPTABLE HERE
30.5 cm
MAXIMUM
SIDE
WALL
10 cm
(4”)
MAXIMUM
DEAD
AIR
SPACE
10 cm
(4”)
MAXIMUM
DIAGRAM A