BRK electronic Smoke Alarm CO3000BN User Manual

MODEL CO3000BN—User’s Manual  
Batter y-Operated Carbon Monoxide Alarm  
M06-1050-000 8/99  
 
CHAPTER 1: Introduction  
BASIC SAFETY INFORMATION  
WARNING!  
This CO Alarm does not operate without a  
working battery. Removing the battery, or  
failure to replace it at the end of its service  
life, removes your protection.  
IMPORTANT!  
Dangers, Warnings, and Cautions alert you to  
important operating instructions or to  
potentially hazardous situations. Pay special  
attention to these items.  
WARNING!  
NEVER ignore your carbon monoxide alarm  
if it alarms. Refer to What To Do If Your CO  
Alarm Alarms” for more information. Failure  
to do so can result in injury or death.  
IMPORTANT!  
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.  
WARNING!  
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.  
IMPORTANT!  
This CO Alarm is approved for use in single-  
family residences. It is NOT designed for marine  
use.  
WARNING!  
CAUTION!  
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 may consider using  
warning devices which provide audible and  
visual signals for carbon monoxide  
This CO Alarm will only indicate the  
presence of carbon monoxide gas at the  
sensor. Carbon monoxide gas may be  
present in other areas.  
WARNING!  
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.  
concentrations under 30 ppm.  
1
 
The Cover of Your CO Alarm  
HOW YOUR CO ALARM WORKS  
General Information  
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, three colored  
indicator lights, and an 85 dB alarm horn. It  
also has a silence feature to temporarily quiet  
the alarm horn.  
1
2
Test/Silence Button:  
BATTERY Light  
(Dual Color —  
Green or Yellow)  
3
4
5
SERVICE Light (Yellow)  
ALARM Light (Red)  
(Behind Cover) Alarm Horn: 85db  
audible alarm for test, alarm, and unit  
malfunction warning.  
2
 
WHAT THE LIGHTS AND ALARM TONES MEAN  
WELCOME CHIRP.  
DURING TESTING -  
GOOD BATTERY  
CO ALARM  
REQUIRES SERVICE  
Horn chirps and battery light  
blinks green once when battery  
is first connected.  
The SERVICE light flashes  
YELLOW and the horn chirps”  
three times every 30 seconds.  
CO Alarm needs to be serviced  
or replaced. See Chapter 4 for  
details.  
When you press the Test/  
Silence button, all three lights  
will flash briefly, and the horn  
will sound.  
ALARM RECEIVING  
BATTERY POWER  
If the battery is GOOD,  
the BATTERY light flashes  
GREEN.  
CO ALARM IS IN ALARM.  
DURING TESTING -  
LOW/WEAK BATTERY  
BATTERY light flashes GREEN  
twice a minute. Horn is silent.  
LOW BATTERY WARNING.  
Sensor has detected enough  
CO to trigger an alarm. ALARM  
light flashes RED rapidly and  
horn sounds loudly. See  
When you press the Test/  
Silence button, all three lights  
will flash briefly, but the horn  
may stay silent.  
Chapter 3 for details on how  
to respond to an alarm.  
The BATTERY light turns  
YELLOW. It flashes and the  
horn “chirps” twice a minute.  
This warning should last for up  
to 30 days, but you should  
replace the battery as soon as  
possible. See Chapter 4 for  
details.  
ALARM-MOVE  
TO FRESH AIR”  
During an alarm, move  
everyone to a source of fresh  
air. Do NOT move the CO  
Alarm!  
If the battery is WEAK, the  
BATTERY light flashes  
YELLOW.  
IMPORTANT! Replace a weak  
battery immediately!  
3
 
Warranty: 5-year limited warranty.  
CO ALARM SPECIFICATIONS  
Standards: Underwriters Laboratories Inc.  
Single and Multiple Station carbon monoxide  
alarms UL2034.  
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.  
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, 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.  
Required Alarm Levels: Before 10% COHb  
exposure at levels of 30% to 70% Relative  
Humidity (RH):  
400 ppm CO between 4 and 15 minutes  
150 ppm CO between 10 and 50 minutes  
70 ppm CO between 60 and 240 minutes  
The unit is designed not to alarm when  
exposed to a constant level of 30 ppm  
for 30 days.  
Audible Alarm: 85dB minimum at 10 feet  
Power: Powered by 9V battery. Green light  
flashes about twice a minute when device is  
receiving battery power.  
During Alarm: CO Alarm horn sounds while the  
red light flashes rapidly.  
This CO alarm is designed to sound for up to  
12 hours in alarm conditions, provided the  
battery is fresh and installed correctly.  
4
 
CHAPTER 2: Installation  
In a Single-level Home:  
WHERE TO INSTALL  
CO ALARMS  
Install at least one CO Alarm near or  
within each separate sleeping area.  
The Consumer Product Safety Commission  
(CPSC) recommends the use of at least one  
CO Alarm per household, located near the  
sleeping area. For added protection, install  
additional CO Alarms in each separate  
bedroom, and on every level of your 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 a Multi-level Home:  
If your bedroom hallway is longer than 40 feet,  
install a CO Alarm at BOTH ends of the hallway.  
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. If  
you have a basement, install that CO  
Alarm at the top of the basement stairs.  
For added protection, install an additional  
CO Alarm at least 20 feet (6 meters) away  
from the furnace or fuel burning heat  
source.  
BEDROOM  
BEDROOM  
KITCHEN  
BEDROOM  
GARAGE  
HALL  
LIVING ROOM  
In a Mobile Home:  
Install CO Alarms on inside walls ONLY.  
BASEMENT  
Uninsulated outside walls and roofs of  
mobile homes often transfer heat and  
cold from outdoors.  
SUGGESTED AREAS FOR INSTALLING CO ALARMS  
5
 
WHERE NOT TO INSTALL  
YOUR CO ALARM  
WARNING!  
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.  
DO NOT locate this CO Alarm:  
In garages, kitchens, furnace rooms,  
or in any extremely dusty, dirty or  
greasy areas.  
Closer than 20 feet from a furnace or  
other fuel burning heat source, or fuel  
burning appliances like a water heater.  
WARNING!  
Within 5 feet of any cooking appliance.  
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.  
In extremely humid areas. This alarm  
should be at least 10 feet from a bath  
or shower, sauna, humidifier, vaporizer,  
dishwasher, laundry room, utility room,  
or other source of high humidity.  
WARNING!  
In areas where temperature is colder than  
40˚F (4˚C) or hotter than 100˚F (38˚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.  
DO NOT use this CO Alarm in warehouses,  
industrial or commercial buildings, special-  
purpose non-residential buildings, RVs,  
boats, or airplanes. This CO Alarm is  
specically designed for residential use,  
and may not provide adequate protection in  
non-residential applications.  
In direct sunlight.  
6
 
HOW TO INSTALL YOUR CO ALARM  
Read Where To Install Your CO Alarm”  
before starting. This CO Alarm can be used on  
a tabletop or mounted on the wall. For tabletop  
use, choose a table no taller than 36” (92 cm);  
a fall from a high table could damage the  
Alarm’s sensitive components.  
Installing the 9V Battery  
1. Slide the mounting  
bracket/battery door  
off the back of the CO  
Alarm.  
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.  
2. Attach the 9V battery  
(included) to the  
battery connector  
inside the battery  
compartment. Make  
sure the battery snaps  
in securely, and  
NOTE:  
cannot be shaken  
loose.  
A qualified appliance technician is defined as  
“a person, firm, corporation, or company that  
either in person or through a representative, is  
engaged in and responsible for the installation,  
testing, servicing, or replacement of heating,  
ventilation, air conditioning (HVAC) equipment,  
combustion appliances and equipment, and/or  
gas fireplaces or other decorative combustion  
equipment.”  
3. Place the battery and  
connector back inside  
the battery  
compartment.  
IMPORTANT!  
For your safety, the CO Alarm will not close until  
a 9V battery is installed.  
7
 
For Tabletop Use  
To Mount On The Wall  
1. Close the battery  
compartment by  
Tools you will need: pencil, drill with 3/16” or  
5mm drill bit, flathead screwdriver, hammer.  
sliding the mounting  
bracket/battery door  
back onto the back of  
the CO Alarm.  
1. Choose a location on the wall. Do not install  
the alarm closer than 4” from where the wall  
meets the ceiling.  
2. Hold the mounting  
bracket against the wall,  
and make a mark inside  
each keyhole where you  
will drill your mounting  
hole.  
2. Test the CO Alarm as described below.  
3. Set the CO Alarm in plain view on a table  
where it will not be blocked by any  
obstructions.Table height should not exceed  
36” (92 cm).  
3. Use a 3/16” drill bit to drill through the marks  
you made for the mounting holes.  
IMPORTANT!  
Put the CO Alarm where children and pets  
cannot reach it.  
4. Insert the plastic screw anchors into the  
mounting holes until they are flush with the  
wall. If necessary, tap them gently with a  
hammer.  
To Test this CO Alarm:  
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.  
5. Line up the mounting  
bracket up with the  
screw anchors, and  
screw the bracket onto  
the wall.  
First, the yellow and green lights will  
flash briefly—this is normal.  
Next, the alarm horn will sound: 4 beeps,  
a pause, then 4 beeps. The red light will  
flash quickly.  
6. Slide the CO Alarm  
onto the mounting bracket until you feel it  
click into place.  
The alarm sequence should last 5-6 seconds.  
If it does not alarm, make sure the battery is  
correctly installed, and test it again. If the unit still  
does not alarm, replace it immediately.  
7. Test the CO Alarm as described in To Test  
this CO Alarm.”  
8
 
CHAPTER 3: If Your CO Alarm Alarms  
immediately. Note any combustion  
WARNING!  
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  
Actuation of your CO alarm indicates the  
presence of carbon monoxide (CO) which  
can kill you. In other words, when your CO  
Alarm alarms, you must not ignore it!  
If the Alarm Signal Sounds:  
1. Operate the Test/Silence button.  
appliance technician here:  
_______________________________________  
2. Call your emergency services, fire  
department or 911. Write down the number  
of your local emergency service here:  
ALARM-MOVE  
TO FRESH AIR”  
If you hear the alarm  
horn and the red light  
is ashing, move  
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.  
everyone to a source  
of fresh air. DO NOT  
move the CO Alarm!  
Finding the Source of CO  
After an Alarm  
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  
Because CO may dissipate by the time an  
investigator arrives, it may be difficult to locate  
the source of CO. See Chapter 5 “What You  
Must Know About CO.” BRK Brands, Inc.  
shall not be obligated to pay for any carbon  
monoxide investigation or service call.  
9
 
While the alarm is silenced:  
Using the Silence Feature  
If the CO Alarm...  
remains silent after you pressed the Test/  
Silence button...  
WARNING!  
NEVER remove the batteries from your  
CO Alarm to silence the horn. Use the  
silence feature. Removing the batteries  
removes your protection! See previous page  
for details on responding to an alarm.  
This means...  
CO levels are dropping.  
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.  
If the CO Alarm...  
goes back into alarm 4 minutes after you  
pressed the Test/Silence button...  
This means...  
When CO reaches the alarm level, 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.  
CO levels present indicate a potentially  
dangerous situation.  
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.  
10  
 
CHAPTER 4: Testing and Maintenance  
If the alarm does not test properly:  
WEEKLY TESTING  
1. Make sure the battery is installed correctly.  
2. Be sure the alarm is clean and dust-free.  
WARNING!  
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.  
3. Install a fresh 9V alkaline or lithium battery*  
and test the alarm again.  
If the CO Alarm is not working properly, refer to  
the “Limited Warranty” at the end of this  
manual.  
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.  
CAUTION!  
If there is still a problem, do not try to x the  
alarm yourselfthis will void your warranty!  
Install a new CO Alarm immediately. CO  
Alarms under warranty can be returned to  
BRK Brands, Inc. for replacement (see  
Limited Warranty for details).  
First, the BATTERY (green) and  
SERVICE (yellow) lights will flash briefly—  
this is normal.  
Next, the alarm horn will sound: 4 beeps,  
a pause, then 4 beeps. The ALARM (red)  
light will flash quickly.  
WARNING!  
The alarm sequence should last 5-6 seconds.  
If it does not alarm, make sure the battery is  
correctly installed, and test it again. If the unit  
still does not alarm, replace it immediately.  
The Test/Silence button is the only proper  
way to test the CO Alarm. NEVER use  
vehicle exhaust! Exhaust may cause  
permanent damage and voids your warranty.  
NOTE:  
When you press and hold the Test/Silence  
button, if the battery is low or weak, the  
BATTERY light will flash YELLOW. Even if the  
horn sounds, you should replace a low or weak  
battery immediately for optimum performance.  
*For a list of acceptable replacement batteries,  
see Regular Maintenance.”  
11  
 
REGULAR MAINTENANCE  
IMPORTANT!  
Use only the alkaline or lithium replacement  
batteries listed. The unit may not operate  
properly with other batteries. Never use  
rechargeable batteries since they may not  
provide a constant charge.  
To keep the CO Alarm in good working order:  
Test it every week using the Test/Silence  
button.  
Vacuum the CO Alarm cover at least  
twice a year, using the soft brush  
attachment. Test the Alarm again after  
vacuuming.  
CAUTION!  
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  
permanently damage the CO Alarm.  
Replace the battery when the CO Alarm  
“chirps” and the yellow light blinks twice  
a minute (the low battery warning).  
IMPORTANT!  
NOTE:  
Household cleaners, aerosol chemicals, and  
other contaminants can affect the sensor. When  
using any of these materials near the alarm,  
make sure the room is well ventilated.  
The low battery warning should last for 30  
days, but you should replace the battery  
immediately to continue your protection.  
Choosing a replacement battery:  
This unit requires one standard 9V alkaline  
battery. The following alkaline batteries are  
acceptable as replacements: Duracell  
#MN1604. You can also use an Ultralife 9 volt  
lithium battery #U9VL for longer service life  
between battery changes. These replacement  
batteries are commonly available at local retail  
stores.  
12  
 
CHAPTER 5: What You Need To Know About CO  
What is CO?  
CAUTION!  
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.  
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.  
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:  
Symptoms of CO Poisoning  
These symptoms are related to CO  
POISONING and should be discussed with  
ALL household members.  
House well ventilated before the  
investigator arrives.  
Problem caused by “backdrafting.”  
Transient CO problem caused by  
special circumstances.  
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.  
BRK Brands, Inc. shall not be obligated to  
pay for any carbon monoxide investigation  
or service call.  
13  
 
The following conditions can result in  
transient CO situations:  
Potential Sources Of CO In The Home  
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.  
Fuel-burning appliances like: portable heater,  
gas or wood burning fireplace, gas kitchen  
range or cooktop, gas clothes dryer.  
Obstructions in or unconventional vent  
pipe designs which can amplify the  
above situations.  
Damaged or insufcient venting: corroded or  
disconnected water heater vent pipe, leaking  
chimney pipe or flue, or cracked heat  
exchanger, blocked or clogged chimney  
opening.  
2. Extended operation of unvented fuel  
burning devices (range, oven, fireplace).  
3. Temperature inversions, which can trap  
exhaust close to the ground.  
Improper use of appliance/device: operating  
a barbecue grill or vehicle in an enclosed area  
(like a garage or screened porch).  
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.  
Transient CO Problems: transient” or on-  
again-off-again CO problems can be caused by  
outdoor conditions and other special  
circumstances.  
14  
 
present. Keep the blower door on the fur-  
nace closed. Use vents or fans when they  
are available on all fuel-burning appli-  
ances. Make sure appliances 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 signifi-  
cantly decrease CO levels.  
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 pre-  
vent proper air movement and cause  
backdrafting. Never “cap” or cover a  
chimney in any way that would block air  
flow.  
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 alarms.  
Test and maintain all fuel-burning equip-  
ment annually. Many local gas or oil com-  
panies and HVAC companies offer  
appliance inspections for a nominal fee.  
Make regular visual inspections of all  
fuel-burning appliances. Check appli-  
ances 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  
15  
 
CHAPTER 6: Underwriters Laboratories Inc. UL2034  
What Levels of CO Cause an Alarm?  
IMPORTANT!  
Underwriters Laboratories Inc. UL2034 defines  
three specific alarm points by which all  
residential CO Alarms must alarm. They are  
measured in parts per million (ppm) of CO over  
time (in minutes).  
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.  
UL2034 Required Alarm Points:  
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 alarms. 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!  
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.  
IMPORTANT!  
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 present.  
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.  
16  
 
CHAPTER 7: Troubleshooting Guide  
Problem...  
This means...  
You should...  
The BATTERY Light turns  
YELLOW. It flashes and the  
horn “chirps” twice a minute.  
Low battery warning.  
Install a new 9V alkaline or lithium battery*.  
During testing, when you  
press and hold the Test/  
Silencebutton, theBATTERY  
Light turns YELLOW.  
Low battery  
Install a new 9V alkaline or lithium battery*.  
Horn chirps and yellow  
service light blinks three  
times every 30 seconds.  
Unit needs to be  
replaced.  
Units under warranty should be returned to  
manufacturer for replacement. See “Limited  
Warranty” for details.  
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.  
CO Alarm alarms frequently The CO Alarm may be  
even though no high levels of improperly located.  
Relocate your alarm. If frequent alarms  
continue, have home rechecked for potential  
CO are revealed in an  
investigation.  
Refer to Where to Install CO problems. You may be experiencing an  
Your CO Alarm.”  
intermittent CO problem.  
*For a list of acceptable replacement batteries, see Regular Maintenance.”  
If you have any questions that cannot be answered by reading this manual, call our Consumer Affairs  
Department at 1-800-323-9005, 7:30 a.m. - 5:00 p.m. (CT).  
17  
 
CHAPTER 8: General Limitations Of CO Alarms  
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  
alarms must be met.  
CO Alarms will not work without power. This  
alarm requires a 9V alkaline or lithium battery to  
operate.  
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 poisoning. 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.  
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, we recommend if bedroom  
doors are usually closed at night, 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.  
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  
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.  
18  
 
BRK Brands, Inc. 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 for  
five years. 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 exclusions 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.  
Limited Warranty  
Coverage: BRK Brands, Inc. warrants its  
enclosed carbon monoxide alarm to be free from  
defects in materials and workmanship under  
normal use for a period of five years from the date  
of purchase. During the first year after the date of  
purchase, BRK Brands, Inc. will replace any  
defective carbon monoxide alarm without charge.  
During the next four years, BRK Brands, Inc. will  
replace any defective carbon monoxide alarm at a  
charge to you not to exceed BRK Brands, Inc.’s  
cost. 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. If this carbon monoxide  
alarm is installed by a contractor, this warranty will  
be valid for the homeowner (or the first  
Service: Units under warranty and in need of  
repair should be returned, shipping prepaid, to  
BRK Brands, Inc., Attn.: Consumer Affairs,  
3920 Enterprise Court, Aurora, IL 60504-8132.  
homeowner after installation) from the date of  
initial purchase by the contractor and is not  
transferable. Dealers, service centers, or retail  
stores selling this product do not have the right to  
alter, modify or any way change the terms and  
conditions of this warranty.  
For your records, please record:  
Date Purchased:  
Where Purchased:  
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 or use contrary to the  
operating instructions, disassembly, repair or  
alteration by anyone other than BRK Brands, Inc.  
Further, the warranty does not cover acts of God,  
such as fire, flood, hurricanes and tornadoes.  
®
BRK Electronics is a  
registered trademark of  
BRK Brands, Inc.  
M06-1050-000 8/99  
 

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