USER’S MANUAL
ONELINK® TALKING COMBINATION SMOKE/CARBON MONOXIDE ALARM WITH PROGRAMMABLE LOCATION
Features:
•Separate sensors to detect smoke and CO; the two alarm sensors work independently
•Voice with programmable location
•Separate audible and visual signals to indicate alarm levels of smoke or CO
•Wireless interconnect
•Powered by two “AA” batteries
•Side access drawer for easy battery replacement
Printed in Mexico M08-0146-004 J1 03/07
UL STANDARD 217 UL STANDARD 2
Model SCO500
TABLE OF CONTENTS
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-2
Wireless Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 Fire Safety Tips . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 Basic Safety Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Step By Step Guide to Programming This Alarm . . . . . . . . . . . . . . . .2
Adding and Linking Additional ONELINK® Alarms . . . . . . . . . . . . .2 What You Will See and Hear With This Alarm . . . . . . . . . . . . . . . . .2
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-4
Where to Install This Alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 Where This Alarm Should NOT Be Installed . . . . . . . . . . . . . . . . . .3 How to Install This Alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Optional Locking Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 If Your Smoke/CO Alarm Sounds . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-6
What To Do First–Identify The Type Of Alarm Signal . . . . . . . . . . .5 If the CO Alarm Sounds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 If the Smoke Alarm Sounds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 Using the Silence Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-6 Latching Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Weekly Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 Regular Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 What You Need To Know About CO . . . . . . . . . . . . . . . . . . . . . . . . . .6-7
What is CO? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 Symptoms of CO Poisoning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 Finding the Source of CO After an Alarm . . . . . . . . . . . . . . . . . . . .6 Potential Sources of CO in the Home . . . . . . . . . . . . . . . . . . . . . . .7
How Can I Protect My Family From CO Poisoning? . . . . . . . . . . . . . .7 Regulatory Information For Smoke/CO Alarms . . . . . . . . . . . . . . . .7-8
Regulatory Information for CO Alarms . . . . . . . . . . . . . . . . . . . . . . .7 Regulatory Information for Smoke Alarms . . . . . . . . . . . . . . . . . . . .8 Recommended Locations for Smoke Alarms . . . . . . . . . . . . . . . . .8 About Smoke Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Special Compliance Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . .8 General Limitations Of Smoke/CO Alarms . . . . . . . . . . . . . . . . . . . . . .9 Troubleshooting Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9 Limited Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
© 2007 BRK Brands, Inc., a subsidiary of Jarden Corporation. 3901 Liberty Street Road, Aurora, IL 60504-8122
All rights reserved.
Consumer Affairs: (800) 323-9005 • www.firstalert.com
All First Alert® Smoke Alarms conform to regulatory requirements, including UL217 and are designed to detect particles of combustion.
Smoke particles of varying number and size are produced in all fires.
Ionization technology is generally more sensitive than photoelectric technology at detecting small particles, which tend to be produced in greater amounts by flaming fires, which consume combustible
materials rapidly and spread quickly. Sources of these fires may include paper burning in a wastebasket, or a grease fire in the kitchen.
Photoelectric technology is generally more sensitive than ionization technology at detecting large particles, which tend to be produced in greater amounts by smoldering fires, which may smolder for hours
before bursting into flame. Sources of these fires may include cigarettes burning in couches or bedding.
For maximum protection, use both types of Smoke Alarms on each level and in every bedroom of your home.
IMPORTANT! PLEASE READ CAREFULLY AND SAVE.
This user’s manual contains important information about your Combination Carbon Monoxide & Smoke Alarm’s operation. If you are installing this Alarm for use by others, you must leave this manual—or a copy of it—with the end user.
INTRODUCTION
Thank you for choosing First Alert® for your Smoke and Carbon Monoxide Alarm needs. You have purchased a state-of-the-art Smoke & Carbon Monoxide Alarm designed to provide you with early warning of a smoke and/or Carbon Monoxide danger. Key features include:
Smoke & Carbon Monoxide Combination Alarm. One alarm protects against two deadly household threats.
ONELINK® Enabled. Alarm automatically communicates with other ONELINK® enabled alarms when installed.
Exclusive Voice Warning with Location will tell you the preprogrammed location of the initiating unit and danger detected. Programmable up to 11 locations (ex. "basement"). When alarms sounds, if programmed for basement it will say "Warning, evacuate, smoke in basement" along with all other installed ONELINK® Voice alarms.
Spread Spectrum Horn Tone. Lower and varying horn frequency makes it easier for elderly with normal age related hearing loss to hear horn. Sweeps through the 2200 – 3400 Hz range.
RF Interconnect. Reliable and secure radio frequency communication between alarms. 915 MHz frequency with 65,000 security codes and 3 channel frequency hopping.
Single Button Test/Silence eliminates confusion. Depending on what mode the alarm is in, pushing the button provides different functions such as testing the alarm, silencing the alarm, re-testing the alarm when in silence and clearing the Latching features.
Two Silence Features. Temporarily silence low battery chirp for up to eight hours before replacing low battery or silence an unwanted alarm for several minutes.
Two Latching Features. Alarm Latch: Easily identifies initiating alarm even after alarm condition has subsided. Low Battery Latch: Identifies which unit is in low battery condition.
Perfect Mount System includes a gasketless base for easy installation and a mounting bracket that keeps the alarm secure over a wide rotation range to allow for perfect alignment.
6 Year End of Life Timer. Every 24 hours of operation a counter stored in memory is updated. When the count equals 6 years of true operation, meaning actually powered-up, a malfunction chirp (triple chirp) will sound once a minute at the time of the 45 second Power-LED flash.
WIRELESS OPERATION
First Alert® ONELINK® Technology is the easy, cost-effective way to provide your family with whole-home safety. All ONELINK® Alarms communicate with each other without wires or connectors. When one Alarm sounds, they all sound. This provides your family with an earlier warning of potential danger, and gives you more time to react.
The communication distance (range) between any two ONELINK® Alarms is typically 50 feet (15 meters) inside of a home. Some features of a home, such as the number of floors, number/size of rooms, furniture and types of building materials used may reduce the range of the Alarms. Examples include: suspended ceilings, ductwork, large metallic appliances (refrigerators) and metal studs. A feature of ONELINK® Alarms is that they operate as a mesh network. All Alarms will repeat any alarm signal that is received to all other ONELINK® Alarms. Interference from structural conditions can be overcome by adding additional Alarms to route the wireless signal around obstructions.
•The range and proper operation of any wireless device will vary depending on its surroundings. It is very important that each Alarm is tested individually before and after installation to make sure that all Alarms respond properly.
•The ONELINK® Alarms are not to be used outdoors or to transmit between buildings. The Alarms will not communicate properly under these conditions.
•Metal objects and metallic wallpaper may interfere with signals from wireless Alarms. Alarms should be tested after changes to your home such as remodeling, moving furniture, and with metal doors opened and closed.
Your First Alert® ONELINK® Smoke/CO Alarm will automatically communicate both potential fires and carbon monoxide presence with all other First Alert® ONELINK® Smoke/CO Alarms.
FCC NOTICE: This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. FCC ID: M7U5001L
Changes or modifications not expressly approved by BRK Brands, Inc. could void the user’s authority to operate the equipment.
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FIRE SAFETY TIPS
Follow safety rules and prevent hazardous situations: 1) Use smoking materials properly. Never smoke in bed. 2) Keep matches or lighters away from children; 3) Store flammable materials in proper containers; 4) Keep electrical appliances in good condition and don’t overload electrical circuits; 5) Keep stoves, barbecue grills, fireplaces and chimneys greaseand debris-free; 6) Never leave anything cooking on the stove unattended; 7) Keep portable heaters and open flames, like candles, away from flammable materials;8) Don’t let rubbish accumulate.
Keep alarms clean, and test them weekly. Replace alarms immediately if they are not working properly. Smoke Alarms that do not work cannot alert you to a fire. Keep at least one working fire extinguisher on every floor, and an additional one in the kitchen. Have fire escape ladders or other reliable means of escape from an upper floor in case stairs are blocked.
BASIC SAFETY INFORMATION
•Dangers, Warnings, and Cautions alert you to important operating instructions or to potentially hazardous situations. Pay special attention to these items.
•This Smoke/CO Alarm is approved for use in single-family residences.
•This combination Smoke/Carbon Monoxide Alarm has two separate alarms. The CO Alarm is not designed to detect fire or any other gas. It will only indicate the presence of carbon monoxide gas at the sensor. Carbon monoxide gas may be present in other areas. The Smoke Alarm will only indicate the presence of smoke that reaches the sensor. The Smoke Alarm is not designed to sense gas, heat or flames.
•This Smoke/CO Alarm cannot operate without working batteries. Removing the batteries for any reason, or failing to replace the batteries at the end of their service life, removes your protection.
•NEVER ignore any alarm. See “If Your Smoke/CO Alarm Sounds” for more information on how to respond to an alarm. Failure to respond can result in injury or death.
•The Silence Features are for your convenience only and will not correct a problem. See "Using the Silence Features" for details. Always check your home for a potential problem after any alarm. Failure to do so can result in injury or death.
•Test this Smoke/CO Alarm once a week. If the Alarm ever fails to test correctly, have it replaced immediately! If the Alarm is not working properly, it cannot alert you to a problem.
•This product is intended for use in ordinary indoor locations of family living units. It is not designed to measure CO levels in compliance with Occupational Safety and Health Administration (OSHA) commercial or industrial standards. Individuals with medical conditions that may make them more sensitive to carbon monoxide may consider using warning devices which provide audible and visual signals for carbon monoxide concentrations under 30 ppm. For additional information on carbon monoxide and your medical condition contact your physician.
STEP BY STEP GUIDE TO PROGRAMMING THIS ALARM
FOR FIRST TIME AND WHEN CHANGING BATTERIES
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Action: |
Alarm Will Say: |
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1. Insert batteries (2, AA batteries). |
“Welcome, First Alert Smoke and |
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Carbon Monoxide Alarm.” |
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“No location programmed” if first |
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time or “[Location, example: |
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“Basement”] location programmed” |
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when changing batteries. |
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“To select location, press and hold |
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test button now.” |
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2. Press & Hold Test Button if |
“To save location, press and hold |
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you would like to program the |
test button after location is heard.” |
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location or change the location |
Alarm will speak list of locations |
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of the Alarm. Release button |
(see below). |
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after Alarm responds. |
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3. After you hear the location of |
“[Location, example: “Basement”] |
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where you are placing the Alarm, |
location saved.” |
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Press & Hold the Test Button. |
If no location is chosen: |
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“No location saved.” |
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Your Alarm has now been programmed for the location of your choice. Available locations:
Basement |
Kitchen |
Child’s Bedroom |
Living Room |
Dining Room |
Master Bedroom |
Family Room |
No Location |
Guest Bedroom |
Office |
Hallway |
Utility Room |
ADDING AND LINKING ADDITIONAL ONELINK® ALARMS
NOTE: Steps 1 through 3 need to be completed within two minutes. If more than two minutes pass, the Green power LED will stop blinking. Simply open the battery drawer of the second Alarm and repeat steps 1 through 3.
1. Insert the batteries into the battery drawer of the next
Alarm. DO NOT CLOSE THE 
DRAWER. 
2. Press and hold the test button and then close the battery drawer.
3. Once you hear the unit chirp, release the test button.
The Green power LED will start to blink indicating the ONELINK® Alarm is waiting for program data from one of the other setup ONELINK® Alarms.
4.Press and hold the test button on the first Alarm, until the second Alarm chirps and its Green power LED stops blinking. Then release the test button.
5.If you have purchased the hardwired battery back-up ONELINK® Alarm, you can now connect the hardwired Alarm by installing the three-wire connector on the ceiling to the Alarm.
6.Repeat steps 1-5 for additional ONELINK® Alarms.
You have now successfully linked your new ONELINK® Alarms. To add additional Alarms at a later time, follow steps 1 through 5.
WHAT YOU WILL SEE AND HEAR WITH THIS ALARM
Under Normal Operations |
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Voice: Silent |
Power/Smoke LED: Flashes Green |
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once a minute |
Horn: Silent |
CO LED: Off |
When You Test the Alarm
Voice: “Testing.” Horn: 3 beeps, pause, 3 beeps; Voice: “Warning, evacuate smoke in [Location, example: “Basement”]. Evacuate.”
Smoke LED: Flashes Red in sync with the horn pattern Horn: 4 fast beeps, pause, 4 fast beeps;
Voice: “Warning, evacuate carbon monoxide in [Location, example: “Basement”]. Evacuate.” Pause. “Highest carbon monoxide level was [CO level example: _0_ ppm]”.
CO LED: Flashes Red in sync with the horn pattern
If Battery Becomes Low or is Missing
Voice: “Replace battery in [Location, example “Kitchen”].” Repeated every 5 hours
Horn: chirps once a minute
Power/Smoke LED: Flashes Green On for 2 seconds/Off for 2 seconds. Low Battery Latch is now engaged.
CO LED: Off
If Alarm is Not Operating Properly (MALFUNCTION SIGNAL)
Voice: “Detector error in [Location, example “Kitchen”], please see manual” (refer to Troubleshooting Guide).
Repeated every 5 hours. Horn: Three rapid chirps every minute
Power/Smoke LED: Flashes approximately once a minute
CO LED: Off
Alarm Levels of CO are Detected
Voice: “Warning, evacuate carbon monoxide in [Location, example: “Kitchen”]. Evacuate.” “____ ppm.”
Horn: 4 beeps, pause, 4 beeps, voice* Power/Smoke LED: Off
CO LED: During Alarm: Flashes Red in sync with the horn pattern. After Alarm: Flashes Red On for 2 seconds/Off for 2 seconds. CO Alarm Latch is now engaged.
*NOTE: If unit goes into CO alarm, the regular 4 beeps-brief pause cycle will repeat for four minutes. After four minutes, the pause will increase to one minute.
Smoke is Detected
Voice: “Warning, evacuate smoke in [Location, example: “Kitchen”]. Evacuate.”
Horn: 3 beeps, pause, 3 beeps, voice
Power/Smoke LED: During Alarm: Flashes Red in sync with the horn pattern. After Alarm: Flashes Red On for 2 seconds/ Off for 2 seconds. Smoke Alarm Latch is now engaged.
CO LED: Off
Smoke Alarm is Silenced |
CO Alarm is Silenced |
Voice: Silent |
Voice: Silent |
Horn: Off |
Horn: Off |
Power/Smoke LED: Flashes Red |
Power/Smoke LED: Off |
CO LED: Off |
CO LED: Flashes Red |
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INSTALLATION
WHERE TO INSTALL THIS ALARM
Minimum coverage for Smoke Alarms, as recommended by the National Fire Protection Association (NFPA), is one Smoke Alarm on every floor, in every sleeping area, and in every bedroom (See “Regulatory Information For Smoke Alarms” for details on the NFPA recommendations).
For CO Alarms, the National Fire Protection Association (NFPA) recommends that a CO Alarm should be centrally located outside of each separate sleeping area in the immediate vicinity of the bedrooms. For added protection, install additional CO Alarms in each separate bedroom, and on every level of your home.
NOTE: For added protection, install an additional Smoke/CO Alarm at least 15 feet (4.6 meters) away from the furnace or fuel burning heat source where possible. In smaller homes or in manufactured homes where this distance cannot be maintained, install the Alarm as far away as possible from the furnace or other fuel burning source. Installing the Alarm closer than 15 feet (4.6 meters) will not harm the Alarm, but may increase the frequency of unwanted alarms.
In general, install combination Smoke and Carbon Monoxide Alarms:
•In the hall near every sleeping area. If your home has multiple sleeping areas, install a unit in each. If a hall is more than 40 feet (12 meters) long, install a unit at each end.
•On every level of your home, including finished attics and basements.
•Inside every bedroom, especially if people sleep with the door partly or completely closed.
•At the top of first-to-second floor stairs.
•At the bottom of the basement stairs.
•For additional coverage, install Alarms in all rooms, halls, and storage areas, where temperatures normally remain between 40˚ F and 100˚F (4˚ C and 38˚ C).
Recommended Placement
SUGGESTED AREAS FOR INSTALLING
SMOKE ALARMS, CO ALARMS, AND COMBO UNITS
KEY:
SMOKE ALARMS
SMOKE ALARM WITH
SILENCE FEATURE
CO ALARMS
BOTH, OR COMBINATION
SMOKE/CO ALARMS
Suggested locations are based on
NFPA recommendations (NFPA 72
for Smoke Alarms and NFPA 720 for
Carbon Monoxide Alarms). Always
refer to national and local codes before beginning any installation.
In new construction AC and AC/DC smoke alarms MUST be interconnected to meet NFPA recommendations.
•When installing on the wall, the top edge of Smoke Alarms should be placed between 4 inches (102 mm) and 12 inches (305 mm) from the wall/ceiling line.
•When installing on the ceiling, place the Alarm as close to the center as possible.
•In either case, install at least 4 inches (102 mm) from where the wall and ceiling meet. See “Avoiding Dead Air Spaces” for more information.
NOTE: For any location, make sure no door or other obstruction could keep carbon monoxide or smoke from reaching the Alarm.
Installing Smoke/CO Alarms in Mobile Homes
For minimum security install one Smoke/CO Alarm as close to each sleeping area as possible. For more security, put one unit in each room. Many older mobile homes (especially those built before 1978) have little or no insulation. If your mobile home is not well insulated, or if you are unsure of the amount of insulation, it is important to install units on inside walls only.
WHERE THIS ALARM SHOULD NOT BE INSTALLED
Do NOT locate this Smoke/CO Alarm:
•In garages, furnace rooms, crawl spaces and unfinished attics. Avoid extremely dusty, dirty or greasy areas.
•Where combustion particles are produced. Combustion particles form when something burns. Areas to avoid include poorly ventilated kitchens, garages, and furnace rooms. Keep units at least 20 feet
(6 meters) from the sources of combustion particles (stove, furnace, water heater, space heater) if possible. In areas where a 20-foot
(6 meter) distance is not possible – in modular, mobile, or smaller homes, for example – it is recommended the Smoke Alarm be placed as far from these fuel-burning sources as possible. The placement recommendations are intended to keep these Alarms at a reasonable distance from a fuel-burning source, and thus reduce “unwanted” alarms. Unwanted alarms can occur if a Smoke Alarm is placed directly next to a fuel-burning source. Ventilate these areas as much as possible.
•Within 5 feet (1.5 meters) of any cooking appliance. In air streams near kitchens. Air currents can draw cooking smoke into the smoke sensor and cause unwanted alarms.
•In extremely humid areas. This Alarm should be at least 10 feet
(3 meters) from a shower, sauna, humidifier, vaporizer, dishwasher, laundry room, utility room, or other source of high humidity.
•In direct sunlight.
•In turbulent air, like near ceiling fans or open windows. Blowing air may prevent CO or smoke from reaching the sensors.
•In areas where temperature is colder than 40˚ F (4˚ C) or hotter than 100˚ F (38˚ C). These areas include non-airconditioned crawl spaces, unfinished attics, uninsulated or poorly insulated ceilings, porches, and garages.
•In insect infested areas. Insects can clog the openings to the sensing chamber.
•Less than 12 inches (305 mm) away from fluorescent lights. Electrical “noise” can interfere with the sensor.
•In “dead air” spaces. See “Avoiding Dead Air Spaces”.
AVOIDING DEAD AIR SPACES
“Dead air” spaces may prevent smoke from reaching the Smoke/CO Alarm. To avoid dead air spaces, follow installation recommendations below.
On ceilings, install Smoke/CO Alarms as close to the center of the ceiling as possible. If this is not possible, install the Smoke/CO Alarm at least 4 inches (102 mm) from the wall or corner.
For wall mounting (if allowed by building codes), the top edge of Smoke/CO Alarms should be placed between 4 inches (102 mm) and 12 inches (305 mm) from the wall/ceiling line, below typical “dead air” spaces.
On a peaked, gabled, or cathedral ceiling, install first Smoke/CO Alarm within 3 feet (0.9 meters) of the peak of the ceiling, measured horizontally. Additional Smoke/CO Alarms may be required depending on the length, angle, etc. of the ceiling's slope. Refer to NFPA 72 for details on requirements for sloped or peaked ceilings.
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