How to Guide

INSTALLATION
WHERE TO INSTALL 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.
If your bedroom hallway is longer than 40 feet (12 meters), install a CO
Alarm at BOTH ends of the hallway.
In a Single-level Home:
• Install at least one CO Alarm near or within each separate sleeping
area.
• For added protection, install an additional CO Alarm at least 20 feet
(6 meters) away from the furnace or fuel burning heat source.
In a Multi-level Home:
• Install at least one CO Alarm near or within each separate sleeping
area.
• For added protection, install at least one CO Alarm on each level of
the home.
• For added protection, install an additional CO Alarm at least 20 feet
(6 meters) away from the furnace or fuel burning heat source.
In Mobile Homes:
• Install CO Alarms on inside walls ONLY. Uninsulated outside walls
and roofs of mobile homes often transfer heat and cold from out-
doors. The Alarm should be located at least 6 inches (152 mm)
from all exterior walls and at least 12 inches (305 mm) from supply
or return vents.
WHERE CO ALARMS SHOULD NOT BE
INSTALLED
DO NOT LOCATE THIS CO ALARM:
• In garages, kitchens, furnace rooms, or in any extremely dusty, dirty
or greasy areas.
• Closer than 20 feet (6 meters) from a furnace or other fuel burning
heat source, or fuel burning appliances like a water heater.
• Within 5 feet (1.5 meters) of any cooking appliance.
• In extremely humid areas. This alarm should be at least 10 feet
(3 meters) from a bath or shower, sauna, humidifier, vaporizer, dish-
washer, laundry room, utility room or other source of high humidity.
• In areas where temperature is colder than 40˚ F (4.4˚ C) or hotter
than 100˚ F (37.8˚ C). These areas include unconditioned crawl
spaces, unfinished attics, uninsulated or poorly insulated ceilings,
porches, and garages.
• In turbulent air, like near ceiling fans, heat vents, air conditioners,
fresh air returns, or open windows. Blowing air may prevent CO
from reaching the sensors.
• Outside the Mobile Home.
• In direct sunlight.
• This CO Alarm is designed for use inside a single-family
home or apartment. It is not meant to be used in common
lobbies, hallways, or basements of multi-family buildings
unless working CO Alarms are also installed in each family
living unit. CO Alarms in common areas may not be heard
from inside individual family living units.
• This CO Alarm alone is not a suitable substitute for complete
detection systems in places which house many people, like
hotels or dormitories, unless a CO Alarm is also placed in
each unit.
• DO NOT use this CO Alarm in warehouses, industrial or
commercial buildings, special-purpose non-residential build-
ings, or airplanes. This CO Alarm is specifically designed for
residential use, and may not provide adequate protection in
non-residential applications.
BATTERY OPERATED CARBON MONOXIDE ALARM
WITH SILENCE FEATURE
USER’S MANUAL
Model
CO400
M08-0140-029 K1 06/15 Printed in Mexico
IMPORTANT! PLEASE READ CAREFULLY AND SAVE.
This user’s manual contains important information about your Carbon
Monoxide (CO) Alarm’s operation. If you are installing this CO Alarm
for use by others, you must leave this manual—or a copy of it—with
the end user.
© 2015 BRK Brands, Inc. All rights reserved.
Distributed by BRK Brands, Inc.
3901 Liberty Street Road, Aurora, IL 60504-8122
First Alert
®
is a registered trademark of the First Alert Trust.
Consumer Affairs: [phone]
www.brkelectronics.com • www.firstalert.com
INTRODUCTION
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 IS NOT A SMOKE ALARM! This CO Alarm is designed to
detect carbon monoxide from ANY source of combustion. It is
NOT designed to detect smoke, fire, or any other gas.
• This CO Alarm is approved for use in single-family residences.
It is NOT designed for marine use.
• This CO Alarm will only indicate the presence of carbon monoxide
gas at the sensor. Carbon monoxide gas may be present in other
areas.
• The Silence Feature is for your convenience only and will not
correct a CO problem. Always check your home for a potential
problem after any alarm. Failure to do so can result in injury or
death.
• NEVER ignore your Carbon Monoxide Alarm if it alarms. Refer
to “If Your CO Alarm Sounds” for more information. Failure to
do so can result in injury or death.
• Test the CO Alarm once a week. If the CO Alarm ever fails to
test correctly, have it replaced immediately! If the CO 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 con-
centrations under 30 ppm. For additional information on carbon
monoxide and your medical condition contact your physician.
FCC Compliance
This equipment has been tested and found to comply with the limits for
a Class B digital device, pursuant to Part 15 of the FCC rules. These
limits are designed to provide reasonable protection against harmful
interference in a residential installation. This equipment generates, uses
and can radiate radio frequency energy and, if not installed and used
in accordance with the instructions, may cause harmful interference to
radio communications.
However, there is no guarantee that the interference will not occur in a
particular installation. If this equipment does cause harmful interference
to radio or television reception, which can be determined by turning
the equipment off and on, the user is encouraged to try to correct the
interference by one or more of the following measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that
of the receiver.
• Consult the dealer or an experienced radio or TV technician for help.
Warning: Changes or modifications to the product, not expressly
approved by First Alert / BRK Brands, Inc., could void the user’s
authority to operate the equipment.
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.
HOW YOUR CO ALARM WORKS
GENERAL INFORMATION
• This CO Alarm does not operate without working batteries.
Removing the batteries, or failure to replace them at the end
of their service life, removes your protection.
A CO Alarm measures the CO levels in the air. It will alarm if CO levels
rise quickly (if the heat exchanger on your furnace breaks, for example),
or if CO is consistently present (a slow CO leak on a fuel-burning
appliance).
This Carbon Monoxide Alarm features a permanently installed sensor
and an 85 dB alarm horn. It also has a silence feature to temporarily
quiet the alarm horn.
THE PARTS OF YOUR CO ALARM
1 2 3 4 5
LIMITED WARRANTY
BRK Brands, Inc. (“BRK”) the maker of BRK
®
brand and First Alert
®
brand products, warrants that for a period of seven years from the date of purchase,
this product will be free from defects in material and workmanship. BRK, at its option, will repair or replace this product or any component of the product
found to be defective during the warranty period. Replacement will be made with a new or remanufactured product or component. If the product is no
longer available, replacement may be made with a similar product of equal or greater value. This is your exclusive warranty.
This warranty is valid for the original retail purchaser from the date of initial retail purchase and is not transferable. Keep the original sales receipt. Proof
of purchase is required to obtain warranty performance. BRK dealers, service centers, or retail stores selling BRK products do not have the right to alter,
modify or any way change the terms and conditions of this warranty. This warranty does not cover normal wear of parts or damage resulting from any of
the following: negligent use or misuse of the product, use on improper voltage or current, use contrary to the operating instructions, disassembly, repair or
alteration by anyone other than BRK or an authorized service center. Further, the warranty does not cover acts of God, such as fire, flood, hurricanes and
tornadoes or any batteries that are included with this unit.
BRK shall not be liable for any incidental or consequential damages caused by the breach of any express or implied warranty. Except to the extent
prohibited by applicable law, any implied warranty of merchantability or fitness for a particular purpose is limited in duration to the duration of the above
warranty. Some states, provinces, or jurisdictions do not allow the exclusion or limitation of incidental or consequential damages or limitations on how
long an implied warranty lasts, so the above limitations or exclusion may not apply to you. This warranty gives you specific legal rights, and you may
also have other rights that vary from state to state, or province to province.
How to Obtain Warranty Service
Service: If service is required, do not return the product to your retailer. In order to obtain warranty service, contact the Consumer Affairs Division at
1-800-323-9005, 7:00 AM - 7:00 PM Central Standard Time, Monday through Friday and 8:00 AM - 6:00 PM Central Standard Time, Saturday and
Sunday. To assist in serving you, please have the model number and date of purchase available when calling.
For Warranty Service return to: 1301 Joe Battle, El Paso, TX 79936
Battery: BRK Brands, Inc. makes no warranty, express or implied, written or oral, including that of merchantability or fitness for any particular purpose,
with respect to battery.
For more information and updates, please visit www.firstalert.com
6
GARAGE
SUGGESTED AREAS FOR INSTALLING ADDITIONAL CO ALARMS
BEDROOM
BEDROOM
HALL
LIVING ROOM
KITCHEN
BASEMENT
BEDROOM
REQUIRED TO MEET NFPA RECOMMENDATIONS
INSTALLING THE 9V BATTERY
1. Push and lift the battery door down to open.
2. Install the 9 volt battery
(included) inside the battery
compartment as indicated.
Make sure the “+” and “–”
ends of each battery are
aligned properly.
3 Ensure battery is securely snapped into terminals by pushing in
direction of arrow in the diagram.
4. Close the battery door.
5. Push and hold the Test/Silence button on the cover until you hear
an acknowledge “chirp”. The alarm horn will sound 4 beeps, a
pause, then 4 beeps. The ALARM (RED) light will flash. The alarm
sequence should last 5-6 seconds. If it does not alarm, make sure
the battery is correctly installed, and test it again.
HOW TO INSTALL YOUR CO ALARM
Read “Where To Install Your CO Alarm” before starting.
Before you start installation, find the pair of self-adhesive labels
included with this CO Alarm. On each label write in the phone number
of your emergency responder (like 911) and a qualified appliance
technician. Place one label near the CO Alarm, and the other label
in the “fresh air” location you plan to go if the alarm sounds.
IF YOUR CO ALARM SOUNDS
Actuation of your CO Alarm indicates the presence of carbon mon-
oxide (CO) which can kill you. In other words, when your CO Alarm
sounds, you must not ignore it!
IF THE ALARM SIGNAL SOUNDS:
1. Operate the Test/Silence button.
2. Call your emergency services, fire department or 911. Write down
the number of your local emergency service here:
____________________________________________________________
3. Immediately move to fresh air—outdoors or by an open door or
window. Do a head count to check that all persons are accounted
for. Do not re-enter the premises, or move away from the open
door or window until the emergency services responder has arrived,
the premises have been aired out, and your CO Alarm remains in its
normal condition.
4. After following steps 1-3, if your CO Alarm reactivates within a
24-hour period, repeat steps 1-3 and call a qualified appliance
technician to investigate for sources of CO from fuel-burning
equipment and appliances, and inspect for proper operation of this
equipment. If problems are identified during this inspection have
the equipment serviced immediately. Note any combustion
equipment not inspected by the technician, and consult the
manufacturers’ instructions, or contact the manufacturers directly,
for more information about CO safety and this equipment. Make
sure that motor vehicles are not, and have not, been operating in
an attached garage or adjacent to the residence. Write down the
number of a qualified appliance technician here:
____________________________________________________________
Alarms have various limitations. See “General Limitations of CO
Alarms” for details.
USING THE SILENCE FEATURE
• The Silence Feature is for your convenience only and will
not correct a CO problem. Always check your home for a
potential problem after any alarm. Failure to do so can result
in injury or death.
• NEVER remove the batteries from your CO Alarm to silence
the horn. Use the silence feature. Removing the batteries
removes your protection! See “If Your CO Alarm Sounds”
for details on responding to an alarm.
The Silence Feature is intended to temporarily silence your CO Alarm’s
alarm horn while you correct the problem—it will not correct a CO
problem. While the alarm is silenced it will continue to monitor the air
for CO.
When CO reaches alarm levels the alarm will sound— repeating horn
pattern: 4 beeps, a pause, 4 beeps, etc. Press and hold the Test/
Silence button until the horn is silent. The initial Silence cycle will last
approximately 4 minutes.
NOTE: After initial 4-minute Silence cycle, the CO Alarm re-evaluates
present CO levels and responds accordingly. If CO levels remain
potentially dangerous—or start rising higher—the horn will start
sounding again.
While the detector is silenced:
WHAT YOU NEED TO KNOW ABOUT CO
WHAT IS CO?
CO is an invisible, odorless, tasteless gas produced when fossil fuels
do not burn completely, or are exposed to heat (usually fire). Electrical
appliances typically do not produce CO.
These fuels include: Wood, coal, charcoal, oil, natural gas, gasoline,
kerosene, and propane.
Common appliances are often sources of CO. If they are not properly
maintained, are improperly ventilated, or malfunction, CO levels can
rise quickly. CO is a real danger now that homes are more energy
efficient. “Air-tight” homes with added insulation, sealed windows, and
other weatherproofing can “trap” CO inside.
SYMPTOMS OF CO POISONING
These symptoms are related to CO POISONING and should be
discussed with ALL household members.
Mild Exposure:
Slight headache, nausea, vomiting, fatigue (“flu-like” symptoms).
Medium Exposure:
Throbbing headache, drowsiness, confusion, fast heart rate.
Extreme Exposure:
Convulsions, unconsciousness, heart and lung failure. Exposure to
carbon monoxide can cause brain damage, death.
Some individuals are more sensitive to CO than others, including
people with cardiac or respiratory problems, infants, unborn babies,
pregnant mothers, or elderly people can be more quickly and
severely affected by CO. Members of sensitive populations should
consult their doctors for advice on taking additional precautions.
FINDING THE SOURCE OF CO AFTER AN ALARM
Carbon monoxide is an odorless, invisible gas, which often makes it
difficult to locate the source of CO after an alarm. These are a few of
the factors that can make it difficult to locate sources of CO:
• House well ventilated before the investigator arrives.
• Problem caused by “backdrafting.”
• Transient CO problem caused by special circumstances.
Because CO may dissipate by the time an investigator arrives, it may be
difficult to locate the source of CO. BRK Brands, Inc. shall not be obli-
gated to pay for any carbon monoxide investigation or service call.
HOW CAN I PROTECT MY FAMILY?
A CO Alarm is an excellent means of protection. It monitors the air and
sounds a loud alarm before carbon monoxide levels become threatening
for average, healthy adults.
A CO Alarm is not a substitute for proper maintenance of home
appliances.
To help prevent CO problems and reduce the risk of CO poisoning:
• Clean chimneys and flues yearly. Keep them free of debris, leaves,
and nests for proper air flow. Also, have a professional check for
rust and corrosion, cracks, or separations. These conditions can
prevent proper air movement and cause backdrafting. Never “cap”
or cover a chimney in any way that would block air flow.
• Test and maintain all fuel-burning equipment annually. Many local
gas or oil companies and HVAC companies offer appliance
inspections for a nominal fee.
• Make regular visual inspections of all fuel-burning appliances. Check
appliances for excessive rust and scaling. Also check the flame on
the burner and pilot lights. The flame should be blue. A yellow flame
means fuel is not being burned completely and CO may be present.
Keep the blower door on the furnace closed. Use vents or fans when
they are available on all fuel-burning appliances. Make sure applianc-
es are vented to the outside. Do not grill or barbecue indoors, or in
garages or on screen porches.
• Check for exhaust backflow from CO sources. Check the draft
hood on an operating furnace for a backdraft. Look for cracks on
furnace heat exchangers.
• Check the house or garage on the other side of shared wall.
• Keep windows and doors open slightly. If you suspect that CO is
escaping into your home, open a window or a door. Opening
windows and doors can significantly decrease CO levels.
In addition, familiarize yourself with all enclosed materials. Read
this manual in its entirety, and make sure you understand what to
do if your CO Alarm sounds.
WHAT LEVELS OF CO CAUSE AN ALARM?
Underwriters Laboratories Inc. Standard UL2034 requires residential CO
Alarms to sound when exposed to levels of CO and exposure times as
described below. They are measured in parts per million (ppm) of CO
over time (in minutes).
UL2034 Required Alarm Points*:
• If the alarm is exposed to 400 ppm of CO, IT MUST ALARM
BETWEEN 4 and 15 MINUTES.
• If the alarm is exposed to 150 ppm of CO, IT MUST ALARM
BETWEEN 10 and 50 MINUTES.
• If the alarm is exposed to 70 ppm of CO, IT MUST ALARM
BETWEEN 60 and 240 MINUTES.
* Approximately 10% COHb exposure at levels of 10% to 95% Relative
Humidity (RH). The unit is designed not to alarm when exposed to a
constant level of 30 ppm for 30 days.
CO Alarms are designed to alarm before there is an immediate life
threat. Since you cannot see or smell CO, never assume it’s not pres-
ent.
• An exposure to 100 ppm of CO for 20 minutes may not affect
average, healthy adults, but after 4 hours the same level may cause
headaches.
• An exposure to 400 ppm of CO may cause headaches in average,
healthy adults after 35 minutes, but can cause death after 2 hours.
This CO Alarm measures exposure to CO over time. It alarms if CO
levels are extremely high in a short period of time, or if CO levels reach
a certain minimum over a long period of time. The CO Alarm generally
sounds an alarm before the onset of symptoms in average, healthy
adults.
Why is this important? Because you need to be warned of a potential
CO problem while you can still react in time. In many reported cases
of CO exposure, victims may be aware that they are not feeling well,
but become disoriented and can no longer react well enough to exit
the building or get help. Also, young children and pets may be the first
affected. The average healthy adult might not feel any symptoms when
the CO Alarm sounds. However, people with cardiac or respiratory
problems, infants, unborn babies, pregnant mothers, or elderly people
can be more quickly and severely affected by CO. If you experience
even mild symptoms of CO poisoning, consult your doctor immediately!
Standards: Underwriters Laboratories Inc. Single and Multiple Station
carbon monoxide alarms UL2034.
According to Underwriters Laboratories Inc. UL2034, Section 1-1.2:
“Carbon monoxide alarms covered by these requirements are intended
to respond to the presence of carbon monoxide from sources such as,
but not limited to, exhaust from internal-combustion engines, abnormal
operation of fuel-fired appliances, and fireplaces. CO Alarms are intended
to alarm at carbon monoxide levels below those that could cause a loss
of ability to react to the dangers of Carbon Monoxide exposure.” This
CO Alarm monitors the air at the Alarm, and is designed to alarm before
CO levels become life threatening. This allows you precious time to
leave the house and correct the problem. This is only possible if Alarms
are located, installed, and maintained as described in this manual.
Gas Detection at Typical Temperature and Humidity Ranges: The CO
Alarm is not formulated to detect CO levels below 30 ppm typically.
UL tested for false alarm resistance to Methane (500 ppm), Butane (300
ppm), Heptane (500 ppm), Ethyl Acetate (200 ppm), Isopropyl Alcohol
(200 ppm) and Carbon Dioxide (5000 ppm). Values measure gas and
vapor concentrations in parts per million.
Audible Alarm: 85 dB minimum at 10 feet (3 meters).
TESTING & MAINTENANCE
WEEKLY TESTING
• Test the CO Alarm once a week. If the CO Alarm ever fails to
test correctly, have it replaced immediately! If the CO Alarm is
not working properly, it cannot alert you to a problem.
• 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.
Push and hold the Test/Silence button on the cover until you hear an
acknowledge “chirp”. The alarm horn will sound 4 beeps, a pause, then
4 beeps. The ALARM (RED) light will flash.
The alarm sequence should last 5-6 seconds. If it does not alarm, make
sure fresh batteries are correctly installed, and test it again. If the unit
still does not alarm, replace it immediately.
If the alarm does not test properly:
1. Make sure that fresh batteries are installed correctly.
2. Be sure the Alarm is clean and dust-free.
3. Install a fresh 9 volt battery* and test the Alarm again.
• DO NOT try fixing the Alarm yourself – this will void your war-
ranty! If the CO Alarm is still not operating properly, and it is still
under warranty, please see “How to Obtain Warranty Service” in
the Limited Warranty. Install a new CO Alarm immediately.
• The Test/Silence button is the only proper way to test the CO
Alarm. NEVER use vehicle exhaust! Exhaust may cause perma-
nent damage and voids your warranty.
*For a list of acceptable replacement batteries, see “Regular Maintenance.”
REGULAR MAINTENANCE
To keep the CO Alarm in good working order:
• Test it every week using the Test/Silence button.
• Vacuum the CO Alarm cover once a month, using the soft brush
attachment. Never use water, cleaners, or solvents, since these
may damage the unit. Test the CO Alarm again after vacuuming.
• Replace the battery when the CO Alarm “chirps” about every min-
ute (the low battery warning).
The low battery warning should last for 7 days, but you should replace
the battery immediately to continue your protection.
Choosing a replacement battery:
This CO Alarm requires one standard 9 volt battery. The following
batteries are acceptable as replacements: Duracell MN1604, Energizer
522, and Ultralife U9VL-J-P. These replacement batteries are common-
ly available at local retail stores.
• Always use the exact batteries specified by this User’s Manual.
DO NOT use rechargeable batteries. Clean the battery contacts
and also those of the device prior to battery installation. Install
batteries correctly with regard to polarity (+ and -).
• Please dispose of or recycle used batteries properly, following
any local regulations. Consult your local waste management
authority or recycling organization to find an electronics
recycling facility in your area. DO NOT DISPOSE OF BATTERIES
IN FIRE. BATTERIES MAY EXPLODE OR LEAK.
• Keep battery out of reach of children. In the event a battery
is swallowed, immediately contact your poison control center,
your physician, or the National Battery Ingestion hotline at
202-625-3333 as serious injury may occur.
• DO NOT spray cleaning chemicals or insect sprays directly on
or near the CO Alarm. DO NOT paint over the CO Alarm. Doing
so may cause permanent damage.
Household cleaners, aerosol chemicals, and other contaminants can
affect the sensor. When using any of these materials near the CO
Alarm, make sure the room is well ventilated.
CO ALARM
Sensor has detected enough CO to trigger an alarm. Light flashes
rapidly and horn sounds loudly (repeating
4 beeps, pause) . See “If Your
CO Alarm Sounds” for details. During an alarm, move everyone to a
source of fresh air. DO NOT move the CO Alarm!
DURING TESTING
Light flashes Red in sync with the horn pattern
(4 beeps, pause,
4 beeps) , simulating a CO Alarm condition.
UNDERSTANDING YOUR CO ALARM
LOW BATTERY WARNING
The light continues to flash (RED) and the horn also “chirps” once
every minute. This warning should last for up to 7 days, but you should
replace the battery as soon as possible.
ALARM RECEIVING BATTERY POWER
Light flashes every minute. Horn is silent.
CO ALARM REQUIRES SERVICE (MALFUNCTION SIGNAL)
The light flashes (RED) and the horn sounds 3 “chirps” every minute.
CO Alarm needs to be replaced.
CO ALARM HAS REACHED ITS END OF LIFE
The light flashes (RED) and the horn sounds 5 “chirps” every minute.
CO Alarm needs to be replaced.
–
–
TO MOUNT ON THE WALL
Tools you will need: pencil, drill with 3/16” or 5mm drill bit,
flathead screwdriver, hammer.
1. Choose a location on the wall. Do not install the Alarm closer than
4” (102 mm) from where the wall meets the ceiling.
2. Hold the mounting guide template against the wall, and make a
mark inside each keyhole where you will drill your mounting hole as
shown in the diagram below.
3. Use a 3/16” (5 mm) drill bit to drill through the marks you made for
the mounting holes.
4. Insert the plastic screw anchors into the mounting holes until they
are flush with the wall. If necessary, tap them gently with a ham-
mer.
5. Insert the screws into the anchors until the screwhead is 1/8 inch
(3 mm) away from the wall.
6. Slide the CO Alarm onto the screws until you feel it click into place.
7. Test the CO Alarm as described in “Weekly Testing.”
“ALARM-MOVE TO FRESH AIR”
If you hear the alarm horn and the Red light is flashing,
move everyone to a source of fresh air.
DO NOT disconnect the batteries from the CO Alarm!
Fuel-burning appliances like: portable heater, gas or wood burning
fireplace, gas kitchen range or cooktop, gas clothes dryer.
Damaged or insufficient venting: corroded or disconnected water
heater vent pipe, leaking chimney pipe or flue, or cracked heat
exchanger, blocked or clogged chimney opening.
Improper use of appliance/device: operating a barbecue grill or
vehicle in an enclosed area (like a garage or screened porch).
Transient CO Problems: “transient” or on-again-off-again CO
problems can be caused by outdoor conditions and other special
circumstances.
This CO Alarm is intended for residential use. It is not intended for
use in industrial applications where Occupational Safety and Health
Administration (OSHA) requirements for carbon monoxide detectors
must be met.
CO alarms may not waken all individuals. If children or others do not
readily waken to the sound of the CO alarm, or if there are infants or
family members with mobility limitations, make sure that someone is
assigned to assist them in the event of an emergency.
CO Alarms will not work without power. This alarm requires one
standard 9 volt battery to operate.
CO Alarms for Solar or Wind Energy users and battery backup
power systems: AC powered CO Alarms should only be operated
with true or pure sine wave inverters. Operating this Alarm with most
battery-powered UPS (uninterruptible power supply) products or square
wave or “quasi sine wave” inverters will damage the Alarm. If you are
not sure about your inverter or UPS type, please consult with the man-
ufacturer to verify.
This CO Alarm will not sense carbon monoxide that does not reach
the sensor. This CO Alarm will only sense CO at the sensor. CO may
be present in other areas. Doors or other obstructions may affect the
rate at which CO reaches the CO Alarm. For this reason, if bedroom
doors are usually closed at night, we recommend you install a CO Alarm
in each bedroom and in the hallway between them.
CO Alarms may not sense CO on another level of the home.
For example, a CO Alarm on the second level, near the bedrooms, may not
sense CO in the basement. For this reason, one CO Alarm may not give
adequate warning. Complete coverage is recommended. Place CO Alarms
on each level of the home.
CO Alarms may not be heard. The alarm horn loudness meets or
exceeds current UL standards of 85 dB at 10 feet (3 meters). However,
if the CO Alarm is installed outside the bedroom, it may not wake up a
sound sleeper or one who has recently used drugs or has been drinking
alcoholic beverages. This is especially true if the door is closed or only
partly open. Even persons who are awake may not hear the alarm horn
if the sound is blocked by distance or closed doors. Noise from traffic,
stereo, radio, television, air conditioner, or other appliances may also
prevent alert persons from hearing the alarm horn. This CO Alarm is not
intended for people who are hearing impaired.
CO Alarms are not a substitute for a smoke alarm. Although fire is
a source of carbon monoxide, this CO Alarm does not sense smoke or
fire. This CO Alarm senses CO that may be escaping unnoticed from
malfunctioning furnaces, appliances, or other sources. Early warning of
fire requires the installation of smoke alarms.
CO Alarms are not a substitute for life insurance. Though these CO
Alarms warn against increasing CO levels, BRK Brands, Inc. does not
warrant or imply in any way that they will protect lives from CO poison-
ing. Homeowners and renters must still insure their lives.
CO Alarms have a limited life. Although the CO Alarm and all of its
parts have passed many stringent tests and are designed to be as
reliable as possible, any of these parts could fail at any time. Therefore,
you must test your CO Alarm weekly.
CO Alarms are not foolproof. Like all other electronic devices, CO
Alarms have limitations. They can only detect CO that reaches their
sensors. They may not give early warning to rising CO levels if the CO
is coming from a remote part of the home, away from the CO Alarm.
GENERAL LIMITATIONS OF CO ALARMS
The following conditions can result in transient CO situations:
1. Excessive spillage or reverse venting of fuel appliances caused by
outdoor conditions such as:
• Wind direction and/or velocity, including high, gusty winds.
Heavy air in the vent pipes (cold/humid air with extended periods
between cycles).
• Negative pressure differential resulting from the use of exhaust
fans.
• Several appliances running at the same time competing for limited
fresh air.
• Vent pipe connections vibrating loose from clothes dryers,
furnaces, or water heaters.
• Obstructions in or unconventional vent pipe designs which can
amplify the above situations.
2. Extended operation of unvented fuel burning devices (range, oven,
fireplace).
3. Temperature inversions, which can trap exhaust close to the
ground.
4. Car idling in an open or closed attached garage, or near a home.
These conditions are dangerous because they can trap exhaust in your
home. Since these conditions can come and go, they are also hard to
recreate during a CO investigation.
POTENTIAL SOURCES OF CO IN THE HOME
REGULATORY INFORMATION FOR CO ALARMS
Printed in Mexico M08-0140-029 K1 06/15
If the CO Alarm...
Is silent for only 4 minutes,
then starts sounding loud-
ly—4 beeps, pause, 4 beeps,
pause
This means...
CO levels are still potentially
dangerous.
If the CO Alarm...
Remains silent after you
pressed the Test/Silence
button
This means...
CO levels are dropping.
CO Alarm goes back into alarm 4 minutes after
you press the Test/Silence button.
CO levels indicate a potentially dangerous
situation.
IF YOU ARE FEELING SYMPTOMS OF CO
POISONING, EVACUATE your home and call
911 or the Fire Department. If not, press the
Test/Silence button again and keep ventilating
your home.
The light flashes (RED) and the horn sounds
3 “chirps” every minute.
MALFUNCTION SIGNAL. CO Alarm needs to be
replaced.
CO Alarms under warranty should be returned to
manufacturer for replacement. See “Limited
Warranty” for details.
PROBLEM... THIS MEANS... YOU SHOULD...
The light continues to flash (RED) and the horn
“chirps” once every minute.
Low battery warning. Install 1 new 9 volt battery*.
TROUBLESHOOTING GUIDE
CO Alarm sounds frequently even though no
high levels of CO are revealed in an investigation.
The CO Alarm may be improperly located. Refer
to “Where to Install CO Alarms.”
Relocate your alarm. If frequent alarms continue,
have home rechecked for potential CO problems.
You may be experiencing an intermittent CO
problem.
The light flashes (RED) and the horn sounds
5 “chirps” every minute.
END OF LIFE SIGNAL. CO Alarm needs to be
replaced.
Immediately replace the CO Alarm.
If you have any questions that cannot be answered by reading this manual, call Consumer Affairs at 1-800-323-9005.
*For a list of acceptable replacement batteries, see “Page 4: Regular Maintenance.”
SILENCING THE LOW BATTERY WARNING
This silence feature can temporarily quiet the low battery warning
“chirp” for up to 8 hours. You can silence the low battery warning
“chirp” by pressing the Test/Silence button. Activation of low battery
silence is acknowledged with a “chirp”.
After 8 hours, the low battery “chirp” will resume. Replace the
batteries as soon as possible; this unit will not operate without
battery power!
If you cannot silence the low battery warning, replace the
batteries immediately.
1 Open door (in back)
2 Battery Compartment (in back)
3 Test/Silence Button
4 POWER/ALARM Light (RED)
5 (Behind Cover) Alarm Horn:
85dB audible alarm for test,
alarm, and unit malfunction
warning.
3.875 inches
3.875 inches
Mounting Guide Template
3.625 inches (92 mm)
CONFORMS TO
UL STD 2034
SILENCING THE END OF LIFE SIGNAL
This silence feature can temporarily quiet the End of Life warning
“chirp” for up to 2 days. You can silence the End of Life warning
“chirp” by pressing the Test/Silence button. The horn will chirp,
acknowledging that the End of Life silence feature has been activated.
After approximately 2 days, the End of Life “chirp” will resume.
For your records, please record:
Date Purchased: ____________Where Purchased: _________________
Date Installed: ____________/____________Month/Year
Replace alarm 5 years after installation. Please write the date in
the space provided:
_____________/____________Month/Year
The alarm will also provide an audible End-of-Life Signal
approximately 7 years after installation to remind you to replace
the unit.
The End-of-Life Signal can be silenced for up to 2 days.
Do not unplug the alarm or remove the batteries until you get
replacement.
3
4
1 & 2
5