For models: 0918K, 440376
DC4K
Smoke and Fire Alarm
User’s Guide
9 Volt Battery Operated Smoke Alarm with Hush® Control and
Safety Light
Thank you for purchasing this smoke and fire alarm. It is an
important part of your family’s home safety plan. You can trust
this product to provide the highest quality safety protection. We
know you expect nothing less when the lives of your family are
at stake.
For your convenience, write down the following information.
If you call our Consumer Hotline, these are the first questions
Smoke Alarm Model Number (located on back of detector):
Date Code (located on back of alarm). The National Fire Protection
Association (NFPA) and the manufacturer recommend replacing this alarm
ten years from the date code:
Date of Purchase:
you will be asked.
Where Purchased:
This product is designed to detect products of combustion using the ionization technique. 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
requirements.
WARNING! BATTERY DOOR WILL NOT CLOSE UNLESS BATTERY IS
PRESENT. REMOVAL OF BATTERY WILL RENDER THE SMOKE ALARM
INOPERATIVE.
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 ionization 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 construction.
• For mobile home installation, select locations carefully to avoid thermal barriers that
may form at the ceiling. For more details, see MOBILE HOME INSTALLATION below.
•When mounting an alarm on the ceiling, locate it at a minimum of 4” (10 cm) 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” (10 cm) and a maximum of 12” (30.5 cm) below the
ceiling. (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 2.4 m) horizontally
shall be located on the high side of the room.” NFPA 72 states: “A row of detectors shall be spaced and located within 3 ft (0.9m) of the peak of the ceiling measured horizontally” (see diagram “C”).
●Smoke Alarms forMinimum Protection
●● Smoke Alarms forAdditional Protection
▲▲Ionization Type SmokeAlarms with
“Hush” Controlor Photoelectric Type
DIAGRAM “B”
ANYWHERE
IN THIS AREA
3 ft
DIAGRAM “A”
3 ft
(0.9m)
(0.9m)
HORIZONTAL DISTANCE
FROM PEAK
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” (10 cm) and a maximum of 12” (30.5 cm) 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.
WARNING: TEST YOUR SMOKE ALARM OPERATION AFTER R.V. OR MOBILE
HOME VEHICLE HAS BEEN IN STORAGE, BEFORE EACH TRIP AND AT
LEAST ONCE A WEEK DURING USE.
2. LOCATIONS TO AVOID
•In the garage. Products of combustion are present when you start your automobile.
• Less than 4” (10cm) from the peak of an “A” frame type ceiling.
•In an area where the temperature may fall below 40ºF or rise above 100ºF.
•In dusty areas. Dust particles may cause nuisance alarm or failure to alarm.
•In very humid areas. Moisture or steam can cause nuisance alarms.
•In insect-infested areas.
•Smoke alarms should not be installed within 3 ft (.9m) of the following: the door to a
kitchen, the door to a bathroom containing a tub or shower, forced air ducts used for
heating or cooling, ceiling or whole house ventilating fans, or other high air flow areas.
•Kitchens. Normal cooking may cause nuisance alarms. If a kitchen alarm is desired, it
should have an alarm silence feature or be a photoelectric type.
• Near fluorescent lights. Electronic “noise” may cause nuisance alarms.
3. INSTALLATION INSTRUCTIONS
CAUTION: THIS UNIT IS SEALED. THE COVER IS NOT REMOVABLE!
When mounting
in a hallway, the
“A” line should
be parallel with
the hallway.
FIGURE 1 FIGURE 2
Alignment Marks
When wall mounting,
the “A” line should
be horizontal and
the “UP FOR WALL
MOUNTING” arrow
must be pointing up.
and arrow are facing up. Use the screws and anchors provided to secure the
mounting plate (use 3/16” drill bit for anchors).
4. Battery installation instructions are provided on the inside of the battery door for
Safety Light and Smoke Alarm use. To ensure proper installation of the Safety
Light and Smoke Alarm battery follow the instructions.
CAUTION! MAKE SURE TO INSTALL THE PROPER LONG LIFE BATTERY (SEE
SECTION 6) IN THE COMPARTMENT THAT POWERS THE SMOKE ALARM
AND THE ALKALINE BATTERY IN THE COMPARTMENT THAT POWERS THE
SAFETY LIGHT. REVERSING THESE WILL ELIMINATE THIS SMOKE ALARM’S
LONGLIFE BATTERY CAPABILITY AND MAY DAMAGE THE SAFETY LIGHT.
5. When installing the battery, press the battery reminder finger down into the battery
compartment and install the battery (see Figure 3).
CAUTION! IF THE BATTERY REMINDER FINGERS ARE NOT HELD DOWN
IN THE BATTERY COMPARTMENT BY THE BATTERIES, THE BATTERY
DOOR WILL NOT CLOSE, AND THE UNIT WILL NOT ATTACH TO
THE MOUNTING BRACKET.
6. Alignment marks are provided on the edge of the trim plate and the alarm. After
installing the mounting plate, place the alarm on the mounting plate with the alignment marks lined up. Twist the alarm in the direction indicated by the “ON” arrow
on the alarm cover (see Figure 4) until it locks in place.
7. USING TAMPER RESIST LOCKING PIN: To
make your smoke alarm somewhat tamper
resistant, a locking pin has been provided in
the bag with the screws and anchors. Using
this pin will deter children and others from
removing the alarm from the mounting plate.
To use the pin, insert it into the hole in the
side of the alarm after the alarm has been
installed on the mounting plate (see Figure 5).
NOTE: THE TAMPER RESIST PIN WILL
HAVE TO BE REMOVED IN ORDER TO CHANGE THE BATTERIES. USE A
LONG NOSE PLIERS TO PULL THE PIN OUT OF THE HOLE. IT IS NOW POSSIBLE TO REMOVE THE ALARM FROM THE MOUNTING PLATE.
8. After installation, test your alarm by depressing and holding down the test button
for several seconds. This should sound the alarm.
FIGURE 5
Tam per Resist
Locking Pin
Install
FIGURE 3 FIGURE 4
1. Remove the mounting plate from the back of the alarm by holding the mounting plate
and twisting the alarm in the direction indicated by the “OFF” arrow on the alarm
cover.
2. To insure aesthetic alignment of the alarm with the hallway or wall, the “A” line on the
mounting plate must be parallel with the hallway when ceiling mounting or horizontal
when wall mounting.
3. After selecting the proper smoke alarm location as described in Section 1, attach the
mounting plate to the ceiling as shown in Figure 1. For wall mounting see Figure 2.
Place mounting plate on the wall. Be sure the “UP FOR WALL MOUNTING “ text
Remove
4. OPERATION AND TESTING
OPERATION: The smoke alarm is operating once a fresh battery is installed and testing is complete. When products of combustion are sensed, the unit sounds a loud
85db pulsating alarm until the air is cleared.
SAFETY LIGHT: The model 0918K has a Safety Light feature. When the smoke alarm
ionization chamber senses smoke, the 85db horn will sound and the Safety Light will
flash until the sensing chamber is cleared of smoke particles.
NOTE: THE SAFETY LIGHT IS NOT INTENDED TO SATISFY THE REQUIREMENTS FOR APPROVED ILLUMINATION UNDER VARIOUS LOCAL CODES.
VERY THICK AND/OR DENSE SMOKE MAY OBSCURE THE LIGHT.
HUSH CONTROL: The “HUSH” feature has the capability of temporarily desensitizing
the alarm circuit for approximately 7 minutes. This feature is to be used only when a
known alarm condition, such as smoke from cooking, activates the alarm. The