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Sloped Ceiling Installation:
The following information is from the National Fire
Protection Association and is listed in Fire Code 72. Install
Smoke Alarms on sloped, peaked or cathedral ceilings at, or
within 3 ft (0.9m) of the highest point (measured horizon-
tally). NFPA 72 states “Smoke alarms in rooms with ceiling
slopes greater than 1 ft to 8 ft (.3 m-2.4 m) horizontally
shall be located on the high side of the room”.
NFPA 72 states “A row of alarms shall be spaced and locat-
ed within 3 ft (0.9 m) of the peak of the ceiling measured
horizontally” (see figure 2).
Operating and Installation Instructions
9
FIGURE 2
Mobile Homes:
Modern mobile homes have been designed and built to be
energy efficient. Install Smoke/CO alarms as recommended
previously (refer to Recommended Installation Instructions
and figure 1). In older mobile homes that are not well insu-
lated, extreme heat or cold can be transferred from the out-
side to the inside through poorly insulated walls and roof.
This may cause a thermal barrier, which can prevent smoke
from reaching an alarm mounted on the ceiling. In such
mobile homes install your Smoke/CO Alarm on an inside
wall with the top edge of the alarm at a minimum of 4
inches (10cm) and a maximum of 12 inches (30.5cm) below
the ceiling (See figure 1). If you are not sure about the insu-
lation in your mobile home, or if you notice that the outer
walls and ceiling are either hot or cold, install your alarm on
an inside wall ONLY!
THIS EQUIPMENT SHOULD BE INSTALLED IN ACCOR-
DANCE WITH THE NATIONAL FIRE PROTECTION ASSOCIA-
TION’S STANDARD 72 (National Fire Protection
Association, Batterymarch Park, Quincy, MA 02269).