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This product is designed to detect products of combustion using the ionization tech-
nique. It contains 0.9 microcurie of Americium 241, a radioactive material. Distributed
under U.S. NRC License No. 32-23858-01E. Manufactured in compliance with U.S.
NRC safety criteria in 10 CFR 32.27. The purchaser is exempt from any regulatory
WARNING! BATTERY DOOR WILL NOT CLOSE UNLESS BATTERY IS
PRESENT. REMOVAL OF BATTERY WILL RENDER THE SMOKE ALARM
IMPORTANT! READ ALL INSTRUCTIONS BEFORE INSTALLATION AND KEEP
THIS MANUAL NEAR THE ALARM FOR FUTURE REFERENCE.
CONTENTS OF THIS MANUAL
1 -- RECOMMENDED LOCATIONS FOR SMOKE ALARMS
2 -- LOCATIONS TO AVOID
3 -- INSTALLATION INSTRUCTIONS
4 -- OPERATION AND TESTING
5 -- NUISANCE ALARMS
6 -- MAINTENANCE
7 -- LIMITATIONS OF SMOKE ALARMS
8 -- GOOD SAFETY HABITS
9 -- NRC INFORMATION
10 -- NFPA PROTECTION STANDARD 72
11 -- CALIFORNIA STATE FIRE MARSHAL REQUIRED INFORMATION
12 -- SERVICE AND WARRANTY
This smoke alarm uses an extremely small amount of radioactive element in the ion-
ization chamber (see Section 9). Do not try to repair the smoke alarm yourself. Refer
to the instructions in Section 12 for service.
1.RECOMMENDED LOCATIONS FOR ALARMS
• Locate the first alarm in the immediate area of the bedrooms. Try to protect the
exit path as the bedrooms are usually farthest from the exit. If more than one
sleeping area exists, locate additional alarms in each sleeping area.
• Locate additional alarms to protect any stairway as stairways act like chimneys for
smoke and heat.
• Locate at least one alarm on every floor level.
• Locate an alarm in every bedroom.
• Locate an alarm in every room where electrical appliances are operated (i.e.
portable heaters or humidifiers).
• Locate an alarm in every room where someone sleeps with the door closed. The
closed door may prevent the alarm from waking the sleeper.
•Smoke, heat, and combustion products rise to the ceiling and spread horizontally.
Mounting the smoke alarm on the ceiling in the center of the room places it closest
to all points in the room. Ceiling mounting is preferred in ordinary residential con-
• For mobile home installation, select locations carefully to avoid thermal barriers that
may form at the ceiling. For more details, see MOBILE HOME INSTALLATION
•When mounting an alarm on the ceiling, locate it at a minimum of 4” (10cm) from
the side wall (see Diagram A).
•When mounting the alarm on the wall, use an inside wall with the top edge of the
alarm at a minimum of 4” (10cm) and a maximum of 12” (30.5cm) below the ceil-
ing. (see Diagram A).
• Put smoke alarms at both ends of a bedroom hallway or large room if the hallway
or room is more than 30 feet (9.1 m) long.
•Install Smoke Alarms on sloped, peaked or cathedral ceilings at or within 3ft
(0.9m)of the highest point (measured horizontally). NFPA 72 states: “Smoke alarms
in rooms with ceiling slopes greater than 1 foot in 8 feet (.3m in 2.4m) horizontally
shall be located on the high side of the room.” NFPA 72 states: “A row of alarms
shall be spaced and located within 3 ft (0.9m) of the peak of the ceiling measured
horizontally” (see diagram ”C”).
MOBILE HOME INSTALLATION
Mobile homes built in the past five to seven years have been designed to be energy
efficient. Install smoke alarms as recommended above (refer to RECOMMENDED
LOCATIONS and Diagram A).
In mobile homes that are not well insulated compared to present standards, extreme
heat or cold can be transferred from the outside to the inside through poorly insulated
walls and roof. This may create a thermal barrier which can prevent the smoke from
reaching an alarm mounted on the ceiling. In such units, install the smoke alarm on
an inside wall with the top edge of the alarm at a minimum of 4” (10cm) and a maxi-
mum of 12” (30.5cm) below the ceiling (see Diagram A).
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 the alarm on an inside wall. For
minimum protection, install at least one alarm close to the bedrooms. For additional
protection, see SINGLE FLOOR PLAN in Diagram B.
IN THIS AREA