Locking Features (Continued)
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.
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.
UNDERSTANDING THE INDICATOR LIGHTS
AND ALARM HORN PATTERNS
| AC Power | DC Power |
| All Models | Models SA4121B, |
| | 4120B, 4120SB |
| | |
Normal Operation | Constant Green LED | Green LED Off |
| Flashing Red LED | Flashing Red LED |
| approx. once/minute | No Audible Alarm |
| |
| No Audible Alarm | |
| | |
| | |
| | |
Test Condition | Constant Green LED | Green LED Off |
| Rapidly Flashing LED | Rapidly Flashing LED |
| Audible Alarm | Audible Alarm |
| | |
| | |
| | |
Alarm Condition* | Constant Green LED | Green LED Off |
(Initiating Unit) | Rapidly Flashing | Rapidly Flashing LED |
|
| Red LED | Audible Alarm |
| Audible Alarm |
| |
| | |
| | |
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.
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”).
