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See “How To Install This Smoke/CO Alarm” for details. Do not connect it to any other type of alarm or auxiliary device. Connecting anything else to this unit may damage it or prevent it from operating properly. • The battery compartment resists closing unless a battery is installed. This warns you the unit will not operate under DC power without a battery. • Do not stand too close to the unit when the alarm is sounding. It is loud to wake you in an emergency. Exposure to the horn at close range may harm your hearing. • Do not paint over the unit. Paint may clog the openings to the sensing chambers and prevent the unit from operating properly. USER’S MANUAL Smoke & Carbon Monoxide Alarm AC Powered Smoke & Carbon Monoxide Alarm with Battery Back-up, Silence Feature and Latching Alarm Model SC9120B Input: 120V AC ~ , 60 Hz, 0.09A IMPORTANT! PLEASE READ CAREFULLY AND SAVE This user’s manual contains important information about your Alarm’s operation. If you are installing the Alarm for use by others, you must leave this manual — or a copy of it — with the end user. Printed in Mexico Model SC9120B M08-0094-000 K1 09/04 Both locking features use locking pins, molded into the mounting bracket. Using needle nose pliers or a utility knife, remove one or both pins, depending on which locking features you use. “ALARM-MOVE TO FRESH AIR” If you hear the alarm horn sound 4 beeps, pause, 4 beeps, pause, and the RED CO light is flashing, move everyone to a source of fresh air. GENERAL LIMITATIONS OF SMOKE/CO ALARMS GENERAL LIMITATIONS OF SMOKE/CO ALARMS 7 IF YOUR SMOKE/CO ALARM SOUNDS, Continued THE “LATCHING ALARM” INDICATOR: The Latching Alarm Indicator is activated after an Alarm is exposed to alarm levels of smoke or carbon monoxide. This feature will only work with AC power. After smoke or CO levels drop below alarm levels, the red smoke or CO LED will begin to flash once every 5 seconds. It will continue to flash or “latch” until you clear it by testing the alarm. This feature helps emergency responders, investigators, or service technicians identify which unit(s) in your home were exposed to alarm levels of smoke or carbon monoxide. This can help investigators pinpoint the source of smoke or CO. Interconnected Alarms. Latching Alarm Indicator shows which Alarm(s) in the series were exposed to alarm levels of smoke or carbon monoxide. The Latching Alarm Indicator stays ON until you clear it, so it can alert you to an alarm that occurred while you were away from home, even though smoke or CO present in the air has dropped below alarm levels. 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. NEVER use vehicle exhaust! Exhaust may cause permanent damage and voids your warranty. • 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/CO Alarm. 1. Push and hold the Test/Silence button on the cover until you hear a “chirp.” The “chirp” marks the start of the self-test sequence. 2. During testing, you will hear a loud, repeating horn pattern: 3 beeps, pause, 3 beeps, pause, while the red smoke LED flashes. Then you will hear a loud, repeating horn pattern: 4 beeps, pause, 4 beeps, pause, while the red CO LED flashes. 3. When testing a series of interconnected units you must test each unit individually. Make sure all units alarm when each one is tested. If the Smoke/CO Alarm does not test properly: 1. Make sure the AC power is applied and battery is fresh and installed correctly. 2. Be sure the alarm is clean and dust-free. 3. Test the unit again. If the Smoke/CO Alarm is still not working properly, replace it immediately. Refer to the “Limited Warranty” at the end of this manual. If there is still a problem, do not try to fix the Alarm yourself. This will void your warranty! 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/CO Alarm at least once a month; gently vacuum the outside of the Smoke/CO Al...

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