4
TO UNLOCK THE MOUNTING BRACKET
ELECTRICAL SHOCK HAZARD. Turn off the power to the area where the Smoke Alarm is installed
before removing it from the mounting bracket. Failure to turn off the power first may result in serious
electrical shock, injury or death.
Always discharge the branch circuit before servicing an AC or AC/DC Smoke Alarm. First, turn off the AC
power at the circuit breaker or fuse box. Next, remove the battery from Smoke Alarms with battery back-
up. Finally, press and hold the test button for 5-10 seconds to discharge the branch circuit.
1. Insert a flathead screwdriver between the mounting bracket pin and the mounting bracket.
2. Pry the Smoke Alarm away from the bracket by turning both the screwdriver and the Smoke Alarm
counterclockwise (left) at the same time.
TO LOCK THE MOUNTING BRACKET:
1. Using needle-nose pliers,
detach one locking pin from
mounting bracket.
2. Insert the locking pin into the
lock located on the pivoting
hinge of the battery door.
3. When you attach the Smoke
Alarm to the mounting brack-
et, the locking pin’s head will
fit into a notch on the bracket.
Locking Features (Continued)
UNDERSTANDING THE INDICATOR LIGHTS
AND ALARM HORN PATTERNS
NOTE: When power is applied, unit(s) may alarm momentarily.
*When any Smoke Alarm in an interconnected series triggers an alarm,
its red LED will flash rapidly. The red LEDs will remain OFF on any remaining
alarms in the series. This feature helps responders identify which unit(s)
triggered the alarm.
AC Power
All Models
DC Power
Models SA4121B,
4120B, 4120SB
Normal Operation
Constant Green LED
Flashing Red LED
approx. once/minute
No Audible Alarm
Green LED Off
Flashing Red LED
No Audible Alarm
Test Condition
Constant Green LED
Rapidly Flashing LED
Audible Alarm
Green LED Off
Rapidly Flashing LED
Audible Alarm
Alarm Condition*
(Initiating Unit)
Constant Green LED
Rapidly Flashing
Red LED
Audible Alarm
Green LED Off
Rapidly Flashing LED
Audible Alarm
WEEKLY TESTING
•
NEVER use an open flame of any kind to test this unit. You might accidentally damage or set fire to
the unit or to your home. The built-in test switch accurately tests the unit’s operation as required by
Underwriters Laboratories, Inc. (UL). If you choose to use an aerosol smoke product to test the
Smoke Alarm, be certain to use one that has been Listed to Underwriters Laboratories, Inc. Safety
Standards, and use it only as directed. Use of non-UL Listed products or improper use of UL Listed
products may affect the Smoke Alarm’s sensitivity, and may void your warranty.
•
If the Alarm ever fails to test properly, replace it immediately. Products under warranty may be
returned to the manufacturer for replacement. See “Limited Warranty” at the end of this manual.
DO NOT stand close to the Alarm when the horn is sounding. Exposure at close range may be harmful to
your hearing. When testing, step away when horn starts sounding.
It is important to test this unit every week to make sure it is working properly. Using the test button is the
recommended way to test this Smoke Alarm.
Press and hold the test button on the cover of the unit until the
alarm sounds (the unit may continue to alarm for a few seconds after you release the button). If it does not alarm,
make sure the unit is receiving power and test it again. If it still does not alarm, replace it immediately.
During
testing, you will hear a loud, repeating horn pattern: 3 beeps, pause, 3 beeps, pause.
When testing a series of interconnected units you must test each unit individually. Make sure all units alarm
when each one is tested.
REGULAR MAINTENANCE
Use only the replacement batteries listed below. The unit may not operate properly with other batteries.
Never use rechargeable batteries since they may not provide a constant charge.
This unit has been designed to be as maintenance-free as possible, but there are a few simple things you must
do to keep it working properly:
•
Test it at least once a week.
•
Clean the Smoke Alarm at least once a month; gently vacuum the outside of the Smoke Alarm using your
household vacuum’s soft brush attachment. Test the Smoke Alarm. Never use water, cleaners or solvents
since they may damage the unit.
•
If the Smoke Alarm becomes contaminated by excessive dirt, dust and/or grime, and cannot be cleaned to
avoid unwanted alarms, replace the unit immediately.
•
Relocate the unit if it sounds frequent unwanted alarms. See “Locations To Avoid For Smoke Alarms” for
details.
•
Models SA4121B/SB Only:
When the battery back-up becomes weak, the Smoke Alarm will “chirp” about
once a minute (the low battery warning). This warning should last 7 days, but you should replace the battery
immediately to continue your protection.
Models SA4121B, 4120B/SB Only
–
Choosing a replacement battery:
Your Smoke Alarm requires one standard 9V battery. The following batteries are acceptable as replacements:
Duracell #MN1604, (Ultra) #MX1604; Eveready (Energizer) #522. You may also use a Lithium battery like the
Ultralife U9VL-J for longer service life between battery changes.
These batteries are available at many local
retail stores.
Actual battery service life depends on the smoke alarm and the environment in which it is installed. All the bat-
teries specified above are acceptable replacement batteries for this unit. Regardless of the manufacturer’s sug-
gested battery life, you MUST replace the battery immediately once the unit starts “chirping” (the “low battery
warning”).
