Kidde i12010SCA User Manual page 11

Installation Instructions
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 Figure 1A). 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 Figure 1B).
Fire departments, most utility companies and HVAC contractors
will perform inspections. Some may charge for this service. It's
advisable to inquire about any applicable fees prior to having
the service performed. Kidde will not pay for, or reimburse, the
owner or user of this product, for any repair or dispatch calls
related to the alarm sounding.
Sloped Ceiling Installation:
Install smoke alarms on sloped, peaked or cathedral ceilings
at, or within 0.9 m (3') of the highest point (measured
horizontally). NFPA 72 states "Smoke alarms in rooms with
ceiling slopes greater than 0.3 m – 2.4 m (1' to 8')
horizontally shall be located on the high side of the room".
Do not place the alarm in the peak of an "A" frame type
ceiling (see Figure 1B and 1C).
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 1B).
In older mobile homes that are not well insulated, extreme
heat or cold can be transferred from the outside 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 Alarm on an inside wall with the
top edge of the alarm at a minimum of 10 cm (4") and a
maximum of 30.5 cm (12") below the ceiling (See Figure 1B).
If you are not sure about the insulation 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!
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