BRK electronic Smoke Alarm CO5120PDB User Manual

FEATURES  
This CO Alarm is designed to be hard-wired and  
mounted on any standard size junction box, up to 4”  
size. 120V AC power to the junction box must not be  
controlled by a dimmer or switch (other than a circuit  
breaker.)  
MODEL CO5120PDB—USER’S MANUAL  
AC POWERED CARBON MONOXIDE ALARM  
WITH BATTERY BACK-UP AND  
DIGITAL DISPLAY  
This CO Alarm samples the air and takes a new read-  
ing about every second. A microchip inside the unit  
stores each reading, and remembers the levels of CO  
it has been exposed to over time. The unit goes into  
alarm mode when it has been exposed to a “critical”  
level of CO (measured in parts per million or “ppm”)  
within a specified time (measured in minutes).  
General features: This Alarm features a permanently  
installed sensor, a red indicator light (LED), and an  
85 dB alarm horn.  
9V Battery Back-Up. If AC power is interrupted,  
the CO Alarm will continue to operate for a short  
time, provided the 9V battery is fresh and correctly  
installed.  
Silence Feature. The Silence feature temporarily  
quiets the alarm.  
Low Battery Silence Feature. Temporarily silences  
the Low Battery Warning chirpfor up to 8 hours if  
AC power is present.  
120VAC 60 Hz 0.09A  
Digital Display. Shows levels of CO, measured in  
parts per million present and any stored peak levels.  
Model  
CO5120PDB  
Malfunction Warning. This unit performs  
self-diagnostic tests approximately every second.  
If the alarm malfunctions, it should be replaced  
immediately.  
PLEASE READ CAREFULLY AND SAVE:  
This unit was shipped with a user’s manual  
that contains important information about its  
operation. If you are installing this unit for use  
by others, you must leave this manual—  
or a copy of it—with the user.  
M06-1060-000 08/01  
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Basic safety information (continued)...  
HOW YOUR CO ALARM WORKS  
THE COVER OF YOUR CO ALARM  
NEVER ignore any alarm. Refer to Chapter 3 for  
more information on how to respond to an alarm.  
Failure to respond can result in injury or death.  
5
2
3
Test this Carbon Monoxide Alarm once a week. If  
it ever fails to test correctly, have it replaced  
immediately! If the alarm is not working properly, it  
cannot alert you to a problem.  
4
1
Do not paint over the CO Alarm. Paint may clog  
the openings to the sensing chamber and prevent  
the sensors from operating properly.  
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 concentrations  
under 30 ppm.  
1.  
Test/Silence/Scroll Button: Press and  
release to select mode (Test, Memory,  
Clear Memory); Press and hold to activate  
mode, or to silence the alarm.  
2.  
3.  
4.  
POWER/ALARM Light (RED)  
Air Vents  
(Behind the Cover) Alarm Horn: 85db  
audible alarm for test, alarm, and unit  
malfunction warning.  
Disconnect AC power before changing battery.  
Shock hazard exists if AC power is miswired.  
5.  
Digital Display  
1
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UNDERSTANDING YOUR CO ALARM  
WHAT YOU SEE AND HEAR UNDER  
DIFFERENT CONDITIONS  
BASIC POWER CONDITIONS  
During a power failure (in battery back-up)  
Horn  
Chirps briefly  
Alarm  
Low / missing  
battery warn-  
ing  
Display  
The word bat”  
Alarm  
operating on  
AC power  
is displayed  
operating on  
emergency  
battery back-up  
POWER/  
ALARM Light minute  
Flashes once a  
WHAT YOU SEE AND HEAR DURING INSTALLATION  
Under normal conditions (AC power)  
Horn  
Silent  
When the electricity comes back on  
Display  
Dash remains lit  
at READY”  
Horn  
Chirps briefly  
POWER/  
Shines  
Display  
Dash appears by  
READYwithin  
a minute  
ALARM Light continuously  
POWER/  
Shines  
When you test the CO Alarm  
Horn  
ALARM Light Continuously  
Sounds loudly -  
4 beeps, pause,  
4 beeps, pause  
Display  
Flashes 888”  
briefly  
POWER/  
Flashes once  
Continued...  
ALARM Light per second  
2
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What You See and Hear Under Different  
Conditions (continued)...  
WHAT YOU SEE AND HEAR IF CO IS DETECTED  
Pre-Alarm Levels  
If battery becomes low or is missing  
Horn  
Silent  
Horn  
Chirps once  
a minute*  
Display  
Shows CO levels  
detected in ppm  
Display  
The word bat”  
flashes on and off  
POWER/  
Shines  
ALARM Light continuously  
POWER/  
Flashes once a  
ALARM Light minute  
*Note: If the battery becomes very weak, you will  
hear extra chirps.Replace the battery immediately!  
Alarm levels of CO are detected (Over 70 ppm)  
Horn  
Sounds loudly -  
4 beeps, pause,  
4 beeps, pause.  
This sequence  
repeats for as  
long as the unit  
is in alarm*  
Disconnect AC power before changing battery.  
Shock hazard exists if AC power is miswired.  
If the CO alarm is not operating properly  
Horn  
Three rapid chirps  
every minute  
Display  
Shows CO levels  
detected in ppm  
Display  
Displays Err”  
POWER/  
Flashes once  
POWER/  
Flashes three  
ALARM Light per second  
ALARM Light times in sync with  
the horn  
*Note: If unit goes into alarm under battery back-up  
power, the regular 4 beeps-brief pause cycle will  
repeat for four minutes. After four minutes, the pause  
will increase to 1 minute.  
Continued)...  
3
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What You See and Hear If CO Is Detected  
(continued)...  
The Latching AlarmIndicator  
Horn  
Silent  
If you silence the alarm  
Display  
Dash remains lit  
at READY”  
Horn  
Silent for about  
4 minutes*  
POWER/  
Flashes once every  
Display  
Shows CO levels  
detected in ppm  
ALARM Light 5 sec., on initiating  
unit in an intercon-  
nected series  
POWER/  
ALARM Light per second  
Flashes once  
USING THE CO MEMORY  
The CO Memory Feature lets you check  
the highest level of CO recorded.  
*Note: After 4 minutes, if CO levels drop below alarm  
levels, the unit will remain silent and return to normal  
operation. If CO present still indicates a potentially  
dangerous situation, the horn will sound again. If CO  
levels increase during the silence period, the horn will  
resume sounding.  
To check CO Memory:  
1. Press and release the  
Test/Silence/Scroll button until  
dash scrolls to MEMORY.”  
2. Press and hold Test/Silence/Scroll  
button to display Memory CO level.  
If alarm levels of CO are detected by an  
interconnected (remote) alarm  
To clear CO Memory:  
1. Press and release the  
Horn  
Sounds loudly -  
4 beeps, pause,  
4 beeps, pause.  
This sequence  
repeats for as  
Test/Silence/Scroll button until the  
dash scrolls to CLEAR MEMORY.”  
2. Press and hold the  
long as the remote  
Test/Silence/Scroll button until the  
display shows CLr.”  
unit is in alarm*  
NOTE: The highest CO level will be  
saved, even after a power interruption,  
until you clear it. DO NOT clear the CO  
Memory reading if you plan to call  
Display  
Dash remains lit  
at READY”  
POWER/  
ALARM Light continuously  
Shines  
someone to investigate a CO problem!  
Clear the CO Memory reading only  
after the investigator has checked your home.  
4
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CO ALARM SPECIFICATIONS  
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.  
During Alarm: Repeating alarm horn pattern:  
4 beeps, pause, 4 beeps, pause.  
Stand-alone unit: red light (LED) flashes once  
per second.  
Interconnected series: red light (LED) flashes  
once per second on the Initiating alarm. The  
red light (LED) on all other alarms will shine  
continuously.  
Required Alarm Levels: Before 10% COHb exposure  
at levels of 30% to 70% Relative Humidity (RH):  
Warranty: 5-year limited warranty.  
400 ppm CO between 4 and 15 minutes  
150 ppm CO between 10 and 50 minutes  
70 ppm CO between 60 and 240 minutes  
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,  
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.  
When exposed to a constant level of 30 ppm of CO,  
this CO Alarm was tested not to go into alarm for at  
least 30 days.  
Audible Alarm: 85dB minimum at 10 feet.  
Power: Powered by 120VAC. The 9V battery back-up  
provides 8 hours of standby and sounds alarm for 12  
hours with fresh battery. When AC power is on, red  
light (LED) shines continuously. Under battery power,  
red light flashes once a minute.  
Malfunction: Horn chirps and light blinks 3 times (in  
rapid succession) every minute and digital display  
shows Err.  
Dimensions: 5.4diameter (approx.)  
Supply Voltage: 120VAC 60Hz, 0.09A.  
5
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CHAPTER 2: INSTALLATION  
WHERE TO INSTALL CO ALARMS  
IN A MULTI-LEVEL HOME:  
Install at least one CO Alarm near or within each  
The National Fire Protection Association (NFPA) rec-  
ommends that a CO Alarm should be centrally locat-  
ed outside of each separate sleeping area in the  
immediate vicinity of the bedrooms. For added pro-  
tection, install additional CO Alarms in each separate  
bedroom, and on every level of your home.  
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.  
If your bedroom hallway is longer than 40 feet, install  
a CO Alarm at BOTH ends of the hallway.  
For added protection, install an additional CO  
Alarm at least 20 feet (6 meters), where possi-  
ble*, away from the furnace or fuel burning  
heat source.  
(*)In smaller homes or in manufactured homes and  
RVs where this distance cannot be maintained, install  
the Alarm as far away from the furnace or other fuel  
burning source. Installing the Alarm closer than 20  
feet (6 meters) will not harm the Alarm, but may  
increase the frequency of nuisance alarms.  
BEDROOM  
KITCHEN  
BEDROOM  
BEDROOM  
GARAGE  
HALL  
LIVING ROOM  
This Alarm must have AC or battery power to  
operate. If the AC power fails, the battery back-up  
will power the Alarm for a short time if the 9V  
battery is fresh and correctly installed. If AC power  
fails, and the battery is dead or missing, the Alarm  
cannot operate.  
BASEMENT  
REQUIRED TO MEET NFPA RECOMMENDATIONS  
SUGGESTED AREAS FOR INSTALLING ADDITIONAL CO ALARMS  
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), where possible*,  
away from the furnace or fuel burning heat source.  
6
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WHERE NOT TO INSTALL THIS ALARM  
DO NOT locate this CO Alarm:  
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.  
In garages, kitchens, furnace rooms, crawl spaces  
and unfinished attics. Avoid extremely dusty, dirty  
or greasy areas.  
The CO Alarm should be at least 5 feet (2 meters),  
preferably 20 feet (6 meters) from sources of  
combustion particles such as stoves, furnaces,  
and vehicles.  
Avoid poorly ventilated kitchens, garages, and  
furnace rooms.  
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.  
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.  
Where the temperatures are regularly below 40˚ F  
(4˚C) or above 100˚ F (38˚ C) including unheated  
buildings, outdoor rooms, porches, or unfinished  
attics or basements. Extreme temperatures may  
shorten component or battery life.  
In turbulent air, like near ceiling fans or open win-  
dows. 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 specifically designed  
for residential use, and may not provide adequate  
protection in non-residential applications.  
In direct sunlight.  
7
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USING THE OPTIONAL LOCKING FEATURES  
The optional locking features are designed to pre-  
vent unauthorized removal of the battery or alarm.  
It is not necessary to activate the locks in single-  
family households where unauthorized battery or  
alarm removal is not a concern.  
THE BATTERY COMPARTMENT LOCK:  
TO LOCK THE BATTERY COMPARTMENT  
Do not lock the battery compartment until you have  
activated the battery and tested the battery back-up.  
These CO Alarms have two separate locking features:  
one locks the battery compartment, and the other  
locks the CO Alarm to the mounting bracket. You can  
choose to use either feature independently, or use  
them both.  
1. Activate the battery back-  
up by removing the Pull  
to Activate Battery Back-  
Uptab. Push and hold  
the test button on the CO  
Alarms cover until the  
Tools you will need: Needle-nose pliers  
Standard/Flathead screwdriver.  
Both locking features use locking pins, molded into  
the mounting bracket. Using needle nose pliers or a  
utility knife, remove one or both pins, depending on  
which locking features you use.  
alarm sounds: 4 beeps,  
pause, 4 beeps, pause.  
If the unit does not alarm during testing, DO  
NOT lock the battery compartment! Install a  
new battery and test again. If it still does not  
alarm, replace the CO Alarm immediately.  
2. Using needle-nose  
pliers or a utility knife,  
detach one locking  
pin from the mount-  
ing bracket.  
Locking Pin  
Continued on next page...  
8
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To Lock the Battery Compartment (continued)...  
3. Push the locking pin through the black dot on the  
label on the back of the CO Alarm.  
1. Remove the CO Alarm from the mounting bracket.  
If the unit is locked to the bracket, see the section  
To Deactivate the Locking Feature.”  
2. Disconnect the power connector by gently prying  
it away from the back of the CO Alarm.  
3. Insert a flathead screwdriver under the head of  
the locking pin, and gently pry it out of the battery  
compartment lock. (If you plan to re-lock the bat-  
tery compartment, save the locking pin.)  
TO UNLOCK THE BATTERY COMPARTMENT:  
Once the CO Alarm is installed, you must disconnect  
it from the AC power before unlocking the battery  
compartment.  
ELECTRICAL SHOCK HAZARD. Turn off the power  
to the area where the CO Alarm is installed before  
removing it from the mounting bracket. Failure to  
turn off the power first may result in serious elec-  
trical shock, injury or death.  
4. To re-lock the battery compartment, close the bat-  
tery door and reinsert the locking pin in the lock.  
5. Reconnect the power connector to the back of  
the CO Alarm, reattach the CO Alarm to the  
mounting bracket, and restore the power  
Always discharge the branch circuit before servic-  
ing an AC or AC/DC CO Alarm. First, turn off the  
AC power at the circuit breaker or fuse box. Next,  
remove the battery from CO Alarms with battery  
back-up. Finally, press and hold the test button for  
5-10 seconds to discharge the branch circuit.  
When replacing the battery, always test the CO Alarm  
before re-locking the battery compartment.  
9
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TO DEACTIVATE THE BRACKET LOCK:  
THE MOUNTING BRACKET LOCK  
Tools you will need:  
Needle-nose pliers  
Standard/Flathead screwdriver  
ELECTRICAL SHOCK HAZARD. Turn off the power  
to the area where the CO Alarm is installed before  
removing it from the mounting bracket. Failure to  
turn off the power first may result in serious elec-  
trical shock, injury or death.  
TO ACTIVATE THE BRACKET LOCK:  
1. Using needle-nose pliers, detach one locking pin  
from the mounting bracket.  
Always discharge the branch circuit before servic-  
ing an AC or AC/DC CO Alarm. First, turn off the  
AC power at the circuit breaker or fuse box. Next,  
remove the battery from CO Alarms with battery  
back-up. Finally, press and hold the test button for  
5-10 seconds to discharge the branch circuit.  
1. Insert a flathead screwdriver between the mount-  
ing bracket pin and the mounting bracket.  
2. Insert the locking pin into the lock located on the  
pivoting hinge of the battery door.  
Continued on next page...  
3. When you attach the CO Alarm to the mounting  
bracket, the locking pins head will fit into a notch  
on the bracket.  
10  
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To Deactivate the Bracket Lock (continued)...  
HOW TO INSTALL  
YOUR CO ALARM  
2. Pry the CO Alarm away from the bracket by turn-  
ing both the screwdriver and the CO Alarm  
counterclockwise (left) at the same time.  
This unit is designed to be mounted on any standard  
wiring junction box up to a 4-inch diagonal size, on either  
the ceiling or wall. Read Where to Install CO Alarms”  
and Where Not To Install CO Alarmsbefore you begin  
installation. If a junction box is not already in place, install  
one using standard #12 or #14 gauge copper wire.  
This Alarm must have AC or battery power to  
operate. If the AC power fails, the battery back-up  
will power the Alarm for a short time if the 9V bat-  
tery is fresh and correctly installed. If AC power  
fails, and the battery is dead or missing, the Alarm  
cannot operate.  
TO PERMANENTLY REMOVE THE  
BRACKET LOCK:  
Insert the flathead screwdriver between the locking  
pin and the lock, and pry the pin out of the lock.  
BEFORE YOU BEGIN 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 airlocation you plan to  
go if the alarm sounds.  
NOTE: 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.”  
11  
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THE PARTS OF THIS CO ALARM  
SINGLE-STATION INSTALLATION  
Tools needed: Standard/Flathead screwdriver.  
1
3
ELECTRICAL SHOCK HAZARD. Turn off power to  
the area where you will install this unit at the circuit  
breaker or fuse box before beginning installation.  
Failure to turn off the power before installation may  
result in serious electrical shock, injury or death.  
2
2
6
CEILING MOUNTING:  
3
1. Remove the mounting bracket from the  
base. Position the screw slots on the  
mounting bracket over the screws in the  
junction box. Tighten the screws.  
4
5
7
8
2. Using wire nuts, connect the power  
connector to the AC power.  
Connect the white wire on the power  
connector to the neutral wire in the  
junction box.  
9
Connect the black wire on the  
power connector to the hot wire in  
the junction box.  
Tuck the violet wire inside the junction  
box. It is used for interconnect only.  
1
2
3
4
5
6
7
8
9
Mounting Bracket  
Mounting Slot and Screw  
Locking Pins (break out of bracket)  
Hot (Black) AC Wire  
3. Plug the power connector into back of the unit.  
4. Position the base of the Alarm over the mounting  
bracket and turn. The Alarm can be  
positioned over the bracket every  
60°. Turn the unit clockwise (right)  
until the unit is in place.  
5. Make sure CO Alarm is secured to  
mounting bracket.  
Neutral (White) AC Wire  
Interconnect Wire (Violet)  
Lever to Open Battery Compartment  
Swing-Out Battery Compartment  
Quick-Connect Power  
6. If you are only installing one unit, restore power to  
the junction box.  
12  
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5. Position the base of the Alarm  
over the mounting bracket so  
display is rotated approximately  
30º left of center. Turn the unit  
clockwise (right) until display is  
horizontal and the unit is in place.  
6. Make sure CO Alarm is secured  
to mounting bracket.  
ELECTRICAL SHOCK HAZARD. Do not restore  
power until the CO Alarm is completely installed.  
Restoring power before installation is complete may  
result in serious electrical shock, injury or death.  
7. Make sure the unit is receiving AC power. Under  
normal operation, the red indicator light will shine  
continuously. Display shows a dash under READY.  
8. If the red power indicator light does not light,  
TURN OFF POWER TO THE JUNCTION BOX  
and recheck all connections. If all connections are  
correct and the red power indicator still does not  
light when you restore the power, the unit should  
be replaced immediately.  
7. If you are only installing one unit,  
restore power to the junction box.  
ELECTRICAL SHOCK HAZARD. Do not restore  
power until the CO Alarm is completely installed.  
Restoring power before installation is complete may  
result in serious electrical shock, injury or death.  
WALL MOUNTING:  
8. Make sure the unit is receiving AC power. Under  
normal operation, the red indicator light will shine  
continuously. Display shows a dash under READY.  
9. If the red power indicator light does not light,  
TURN OFF POWER TO THE JUNCTION BOX  
and recheck all connections. If all connections are  
correct and the red power indicator still does not  
light when you restore the power, the unit should  
be replaced immediately.  
1. Position the junction box face  
plate so screw holes are posi-  
tioned as shown at right.  
2. Remove mounting bracket  
from the base. Position the  
screw slots on the mounting  
Enlarged view  
bracket over the screws in the  
junction box. Tighten the  
screws.  
3. Using wire nuts, connect the  
power connector to the AC  
ACTIVATING THE BATTERY BACK-UP  
power.  
Connect the white wire on the power connector  
to the neutral wire in the junction box.  
Connect the black wire on the power connector  
to the hot wire in the junction box.  
Tuck the violet wire inside the junction box. It is  
used for interconnect only.  
Activate the battery back-up by removing the Pull to  
Activate Battery Back-Uptab. You do not need to  
open the battery compartment and reposition the bat-  
tery during installation. DO NOT remove the battery  
activation tab until AC power is turned on to con-  
serve battery power. Test the alarm. Press and hold  
the test button on the cover until the alarm sounds: 4  
beeps, pause, 4 beeps, pause.  
4. Plug the power connector into back of the unit.  
13  
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INTERCONNECTING MULTIPLE CO ALARMS  
Interconnected units can provide earlier warning of a  
CO problem than stand-alone units, especially if the  
problem starts in a remote area of the dwelling. If any  
unit in the series senses CO, all units will alarm. To  
determine which CO Alarm initiated an alarm, refer to  
the table.  
Interconnecting Multiple CO Alarms  
6
7
B
A
}
}
8
5
4
3
5
On Initiating Alarm  
Red LED Flashes Once per  
Second  
4
3
2
On All Other Alarms Red LED Shines Continuously  
1
1
All wiring must conform to all local electrical codes  
and Article 760 of the National Electrical Code. Refer  
to NFPA, Chapter 2 and/or your local building code  
for further connection requirements.  
A
B
Unswitched 120VAC 60 Hz source  
To Additional Model CO5120B or CO5120PDB  
CO Alarms, Maximum = 18 alarms  
AC and AC/DC CO Alarms can be interconnected.  
Under AC power, all units will alarm when one  
senses CO. When power is interrupted, only the  
AC/DC units in the series will continue to send  
and receive signals. AC powered CO Alarms will  
not operate.  
1
2
3
4
5
6
7
8
Carbon Monoxide Alarm  
Ceiling or wall  
Power connector  
Wire nut  
Interconnect units within a single family residence  
only. Otherwise all households will experience  
unwanted alarms when you test any unit in the series.  
Interconnected units will only work if they are wired  
to compatible units and all requirements are met.  
It is recommended only BRK Electronics® carbon  
monoxide alarms CO5120B, and CO5120PDB be  
interconnected.  
Junction box  
Neutral (White) AC wire  
Interconnect wire (Violet)  
Hot (Black) AC wire  
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3. Using wire nuts, connect the power con-  
nector to the AC power.  
Interconnected units must meet ALL of the  
following requirements:  
Connect the white wire on the power  
connector to the neutral wire (usually  
white) in the junction box.  
A maximum of 18 units total may be  
interconnected. (See page 14 for details.)  
Connect the black wire on the power  
connector to the hot wire (usually  
black) in the junction box.  
Connect the violet wire on the power  
connector to the interconnect wire in  
the junction box. Repeat for each unit  
you are interconnecting. Never connect  
the hot or neutral wires in the junction  
box to the violet interconnect wire.  
The same fuse or circuit breaker must power  
all interconnected units.  
The total length of wire interconnecting the  
units should be less than 1000 feet. The  
interconnect wire should be Type 18 gauge  
AWM or larger, rated at least 300V.  
If an interconnect wire is not already part of  
your household wiring, you will need to  
install one.  
4. Plug the power connector into the back  
of the CO Alarm.  
Failure to meet any of the above requirements  
could damage the units and cause them to  
malfunction, removing your protection.  
5. Position the base of the  
alarm over the mounting  
bracket and turn. The Alarm  
can be positioned over the  
bracket every 60°. Turn the  
unit clockwise (right) until  
the unit is in place.  
MULTIPLE-STATION INSTALLATION  
6. Make sure CO Alarm is secured  
to the mounting bracket.  
ELECTRICAL SHOCK HAZARD. Turn off power to  
the area where you will install this unit at the circuit  
breaker or fuse box before beginning installation.  
Failure to turn off the power before installation may  
result in serious electrical shock, injury or death.  
ELECTRICAL SHOCK HAZARD. Do not restore  
power until all CO Alarms are completely installed.  
Restoring power before installation is complete may  
result in serious electrical shock, injury or death.  
7. Make sure each unit is receiving AC power. Under  
normal operation, the red light (LED) will shine con-  
tinuously. Display shows a dash under READY.  
CEILING MOUNTING:  
1. Remove the mounting bracket from the base.  
Position the screw slots on the mounting bracket  
over the screws in the junction box. Tighten the  
screws.  
2. Strip off about 1/2of the plastic coating on the  
violet interconnect wire on the power connector.  
15  
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8. If the red power indicator light does not light,  
TURN OFF POWER TO THE JUNCTION BOX  
and recheck all connections. If all connections are  
correct and the red power indicator still does not  
light when you restore the power, the unit should  
be replaced immediately.  
9. Test each CO Alarm. Press and hold the test  
button until the unit alarms: 4 beeps, pause,  
4 beeps, pause.  
5. Plug the power connector into  
the back of the CO Alarm.  
6. Position the base of the  
Alarm over the mounting  
bracket so display is rotated  
approximately 30º left of  
center. Turn the unit clock-  
wise (right) until display is  
horizontal and the unit is in  
place.  
30˚  
WALL MOUNTING:  
1. Position the junction box face  
plate so screw holes are posi-  
tioned as shown at right.  
7. Make sure CO Alarm is  
2. Remove mounting bracket  
secured to the mounting bracket.  
from the base. Position the  
Enlarged view  
screw slots on the mounting  
bracket over the screws in the  
junction box. Tighten the  
screws.  
ELECTRICAL SHOCK HAZARD. Do not restore  
power until the CO Alarm is completely installed.  
Restoring power before installation is complete may  
result in serious electrical shock, injury or death.  
3. Strip off about 1/2of the  
plastic coating on the violet  
interconnect wire on the power connector.  
8. Make sure each unit is receiving AC power. Under  
normal operation, the red light (LED) will shine con-  
tinuously. Display shows a dash under READY.  
4. Using wire nuts, connect the power connector to  
the AC power.  
Connect the white wire on the power connector  
to the neutral wire (usually white) in the junction  
box.  
9. If the red power indicator light does not light,  
TURN OFF POWER TO THE JUNCTION BOX  
and recheck all connections. If all connections are  
correct and the red power indicator still does not  
light when you restore the power, the unit should  
be replaced immediately.  
Connect the black wire on the power connector  
to the hot wire (usually black) in the junction  
box.  
Connect the violet wire on the power connec-  
tor to the interconnect wire in the junction box.  
Repeat for each unit you are interconnecting.  
Never connect the hot or neutral wires in the  
junction box to the violet interconnect wire.  
10. Test each CO Alarm. Press and hold the test  
button until the unit alarms: 4 beeps, pause,  
4 beeps, pause.  
16  
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ACTIVATING THE BATTERY BACK-UP  
In a series of interconnected Alarms, you must test  
each Alarm separately by pressing and holding the  
test button. Make sure all units alarm when each  
one is tested.  
Activate the battery back-up by remov-  
ing the Pull to Activate Battery Back-  
Uptab. You do not need to open the  
battery compartment and reposition  
the battery during installation.  
DO NOT remove the battery activation tab until AC  
power is turned on to conserve battery power.  
If any unit in the series does not alarm during testing,  
TURN OFF POWER and recheck connections. If it does  
not alarm when you restore power, replace it immediately.  
Test the alarm. Press and hold the test button on the  
cover until the alarm sounds:  
4 beeps, pause, 4 beeps, pause.  
CHAPTER 3: IF YOUR CO ALARM SOUNDS  
(Do not remove or disconnect the alarm!)  
Actuation of your CO Alarm indicates the presence  
of carbon monoxide (CO) which can kill you. When  
your CO Alarm sounds, you must not ignore it!  
4. After following steps 1-3, if your CO Alarm reacti-  
vates 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 iden-  
tified during this inspection have the equipment  
serviced immediately. Note any combustion equip-  
ment not inspected by the technician, and consult  
the manufacturersinstructions, 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 operat-  
ing in an attached garage or adjacent to the resi-  
dence. Write down the number of a qualified appli-  
ance technician here:  
IF THE ALARM SOUNDS:  
1. Operate the Test/Silence button to silence the alarm.  
2. Call your emergency services, fire department  
or 911. Write down the number of your local  
emergency service here:  
________________________________________  
3. Immediately move (everyone) to fresh airout-  
doors 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.  
_______________________________________  
17  
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Display Shows...  
It Means...  
USING THE SILENCE FEATURE  
30  
Developing CO problem. Display will  
only show levels of carbon monoxide  
30 ppm or higher.  
(or higher)  
NEVER disconnect the power to your CO Alarm  
to silence the hornuse the silence feature.  
Disconnecting the CO Alarm removes your  
protection! See previous page for details on  
responding to an alarm.  
70  
The unit is calibrated to sound an alarm  
before 240 minutes have passed when  
exposed to this level.  
(or higher)  
150  
(or higher)  
The unit is calibrated to sound an alarm  
before 50 minutes have passed when  
exposed to this level. At this level, an  
average healthy adult may feel a  
headache within 90 minutes.  
The Silence feature is intended to temporarily silence  
your CO Alarms alarm horn while you correct the  
problemit will not correct a CO problem. While the  
alarm is silenced, it will continue to monitor the air for  
CO. When CO reaches the Alarmlevel, it will  
soundrepeating horn pattern: 4 beeps, a pause, 4  
beeps, etc. Press and hold the Test/Silence button  
until the horn is silent. The Silence cycle will last  
approximately 4 minutes.  
400  
(or (higher)  
The unit is calibrated to sound an alarm  
before 15 minutes have passed when  
exposed to this level. This level may be  
life threatening to a normal healthy  
adult within three hours.  
A number higher Over 450 ppm has been detected.  
than 450 Evacuate immediately!  
To silence an interconnected series of Alarms, you  
must press the Test/Silence button on the initiating  
alarm (the unit with the flashing red light). If you press  
the Test/Silence on any other Alarm, it will only  
silence that unit, not the whole interconnected series.  
NOTE: After the 4-minute silence cycle, the CO Alarm  
re-evaluates present CO levels and responds accord-  
ingly. If CO levels remain potentially dangerousor  
start rising higherthe horn will start sounding again.  
While the CO Alarm is silenced:  
If the CO Alarm...is silent for only 4 minutes, then starts  
sounding loudly4 beeps, then a pause, 4 beeps, then  
a pause. Red light (LED) continues flashing...  
This means...CO levels are still potentially dangerous.  
If the CO Alarm...remains silent....  
This means...unit has returned to normal operation.  
18  
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FINDING THE SOURCE OF CO AFTER AN ALARM  
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 Need to Know About CO.BRK Brands, Inc. shall not be obligated to pay for any carbon  
monoxide investigation or service call.  
THE LATCHING ALARMINDICATOR:  
KEY:  
LATCHING ALARM:  
Unit was exposed  
to alarm levels of CO  
BEDROOM  
BEDROOM  
GARAGE  
BEDROOM  
KITCHEN  
LATCHING NOT ACTIVATED:  
Unit was not exposed  
to alarm levels of CO  
HALL  
LIVING ROOM  
BASEMENT  
The Latching Alarm Indicator is activated after a  
CO Alarm is exposed to alarm levels of carbon  
monoxide. After CO levels drop below alarm levels,  
the red LED will begin to flash once every 5 seconds.  
It will continue to flash or latchuntil you clear it by  
pressing the test button.  
Interconnected Alarms  
Latching Alarm Indicator shows which Alarm(s) in  
the series were exposed to alarm levels of carbon  
monoxide.  
The Latching Alarm Indicator stays ON until you clear  
it, so it can alert you to a CO Alarm that occurred  
while you were away from home, even though CO  
present in the air has dropped below alarm levels.  
This feature helps emergency responders, investiga-  
tors, or service technicians identify which unit(s) in  
your home were exposed to alarm levels of carbon  
monoxide. This can help investigators pinpoint the  
source of CO.  
19  
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CHAPTER 4: TESTING AND MAINTENANCE  
THE LOW (OR MISSING) BATTERY WARNING:  
WEEKLY TESTING  
Push and hold the Test/Silence button until a loud  
alarm sounds4 beeps, pause, 4 beeps. This  
sequence should last for 10 seconds. If the Alarm ever  
fails to test properly, replace it immediately. If the Alarm  
is not working properly, refer to Limited Warranty.  
The horn will chirponce a  
minute and the word batwill  
flash on and off on the display.  
NOTE: You should replace the battery immediately to  
continue your protection.  
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.  
LOW BATTERY SILENCE FEATURE. If AC power is on,  
press the Test/Silence button to silence the low battery  
chirpfor up to 8 hours. The alarm will continue to  
operate as long as AC power is supplied. However,  
replace the battery as soon as possible, to maintain  
protection in event of a power outage.  
Choosing a replacement battery: This unit requires  
one standard 9V alkaline battery. The following alkaline  
batteries are acceptable as replacements. This list sup-  
plements the list on the carbon monoxide alarm battery  
door: Eveready #522 (Energizer); Duracell #MN1604,  
MX1604 (Ultra). You may also use a Lithium battery like  
an Ultralife U9VL-J for longer service between battery  
changes. These batteries are available at many local  
retail stores. Replacement batteries are commonly  
available at local retail stores.  
DO NOT stand close to the Alarm when the  
horn is sounding. Exposure at close range  
may be harmful to your hearing. When test-  
ing, step away when horn starts sounding.  
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 at least twice a  
year, using the soft brush attachment. Test the  
alarm again after vacuuming.  
Household cleaners, aerosol chemicals and other con-  
taminants can affect sensor. When using any of these  
materials near Alarm, make sure room is well ventilated.  
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.  
DO NOT spray cleaning chemicals or insect sprays  
directly on or near the Alarm. DO NOT paint over the  
Alarm, this may permanently damage the Alarm. DO  
NOT expose the Alarm to strong fumes such as  
painting or fumigating.  
Disconnect AC power before changing battery.  
Shock hazard exists if AC power is miswired.  
20  
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CHAPTER 5: 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.  
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.  
These fuels include:  
Wood, coal, charcoal, oil, natural gas, gasoline,  
kerosene, and propane.  
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:  
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-tighthomes with added insulation,  
sealed windows, and other weatherproofing can  
trapCO inside.  
House well ventilated before the  
investigator arrives.  
SYMPTOMS OF CO POISONING  
These symptoms are related to CO POISONING and  
Problem caused by backdrafting.”  
should be discussed with ALL household members.  
Transient CO problem caused by  
special circumstances.  
Mild Exposure:  
Slight headache, nausea, vomiting, fatigue (flu-like”  
BRK Brands, Inc. shall not be obligated to pay for  
any carbon monoxide investigation or service call.  
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 dam-  
age, death.  
21  
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POTENTIAL SOURCES OF CO IN THE HOME  
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.  
Fuel-burning appliances like: portable heater, gas or  
wood burning fireplace, gas kitchen range or cooktop,  
gas clothes dryer.  
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 dur-  
ing a CO investigation.  
Damaged or insufficient venting: corroded or dis-  
connected 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 bar-  
becue grill or vehicle in an enclosed area (like a  
garage or screened porch).  
Transient CO Problems: transientor on-again-off-  
again CO problems can be caused by outdoor condi-  
tions and other special circumstances.  
22  
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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.  
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.  
Check the house or garage on the other side of  
shared wall.  
A CO Alarm is not a substitute for proper  
maintenance of home appliances.  
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.  
To help prevent CO problems and reduce the risk of  
CO poisoning:  
In addition, familiarize yourself with the enclosed  
checklist, read this manual in its entirety, and  
make sure you understand what to do if your CO  
Alarm sounds.  
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 cor-  
rosion, cracks, or separations. These conditions  
can prevent proper air movement and cause  
backdrafting. Never capor 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-burn-  
ing 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 appliances  
are vented to the outside. Do not use  
portable/outdoor grills or barbecue indoors, or in  
garages or on screen porches.  
23  
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CHAPTER 6: UNDERWRITERS LABORATORIES INC. UL2034  
WHAT LEVELS OF CO CAUSE AN ALARM?  
Underwriters Laboratories Inc. UL2034 defines 3  
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 peri-  
od 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:  
If the Alarm is exposed to 400 ppm  
of CO, IT MUST ALARM BETWEEN  
4 and 15 MINUTES  
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!  
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.  
CO Alarms are designed to alarm before there is an  
immediate life threat. Since you cannot see or smell  
CO, never assume its 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.  
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.  
An exposure to 400 ppm of CO may cause  
headaches in average, healthy adults after 35  
minutes, but can cause death after 2 hours.  
24  
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CHAPTER 7: TROUBLESHOOTING GUIDE  
ELECTRICAL SHOCK HAZARD. Turn off the power to the area where the CO Alarm is installed BEFORE  
removing it from the mounting bracket or checking any electrical connections! Failure to turn off the power  
first may result in serious electrical shock, injury or death.  
The following guide can help you identify a potential problem with the installation or operation of your CO Alarm. It  
is not meant to be an all-inclusive list of all CO Alarm conditions. If you are experiencing a condition not covered in  
the next several pages, please contact Consumer Affairs.  
If your CO Alarm does this...  
This means...  
You should...  
Red light is OFF. Unit will not alarm when  
you press the Test/Silence button.  
Unit may not be receiving any power.  
Check the AC power supply. Make sure  
the power connector is securely  
attached to the Alarm. Make sure a  
fresh 9V battery is installed to power  
the battery back-up.  
Red light flashes once a minute (horn is  
Alarm is not receiving AC power.  
Low battery warning.  
Unit is operating on DC battery back-  
up. Check the AC power supply.  
silent). Display shows bat.  
Once a minute, the red light flashes and  
the horn chirpsand flashing bat”  
displays continuously.  
Replace the 9V battery in the battery  
back-up. Disconnect AC power before  
changing the battery.  
Once a minute, the alarm sounds 3  
quick chirps, and the red light flashes  
quickly three times and display reads  
Err.  
Based on its Self Test diagnostics, the  
unit has detected a malfunction. The  
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 are still potentially dangerous.  
Refer to Chapter 3 If Your CO Alarm  
Soundsfor details on how to respond to  
an alarm. If anyone is feeling ill, EVACU-  
ATE your home immediately and call 911.  
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  
Your CO Alarm.”  
Relocate your Alarm. If frequent alarms  
continue, have home rechecked for  
potential CO problems. You may be  
experiencing an intermittent CO problem.  
If you have any questions that cannot be answered by reading this manual, call Consumer Affairs:1-800-323-9005.  
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25  
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 detectors must be met.  
CO Alarms will not work without power. This CO  
Alarm requires a continuous supply of AC power, and  
a fresh, correctly installed 9V battery to power the  
battery back-up.  
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.  
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 bed-  
room and in the hallway between them.  
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 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 recom-  
mended. Place CO Alarms on each level of the home.  
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 may not be heard. The Alarm horn loud-  
ness meets or exceeds current UL standards of 85 dB  
at 10 feet. However, if the CO Alarm is installed out-  
side the bedroom, it may not wake up a sound sleep-  
er 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 foolproof. Like all other electron-  
ic 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.  
26  
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27  
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LIMITED WARRANTY  
Coverage: BRK Brands, Inc. ("BRK")  
hibited by applicable law, any implied warranty of  
merchantability or fitness for a particular purpose is  
limited in duration for 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.  
the maker of BRK Electronics® brand  
products, warrants that for a period of  
5 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 dur-  
ing 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.  
How to Obtain Warranty Service:  
Service: If service is required, do not return the prod-  
uct to your retailer. In order to obtain warranty service,  
contact the Consumer Affairs Division at 1-800-323-  
9005, 7:30 AM to 5:00 PM, Central Standard Time,  
Monday through Friday. To assist in serving you,  
please have the model number and date of purchase  
available when calling.  
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.  
3920 Enterprise Court, Aurora, IL 60504-8132.  
Battery: BRK Brands, Inc. make no warranty, express  
or implied, written or oral, including that of mer-  
chantability or fitness for any particular purpose with  
respect to battery.  
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 war-  
ranty does not cover acts of God, such as fire, flood,  
hurricanes and tornadoes or any batteries that are  
included with this unit.  
Please record Date and Where Purchased:  
_____________________________________________  
BRK shall not be liable for any incidental or conse-  
quential damages caused by the breach of any  
express or implied warranty. Except to the extent pro-  
BRK Electronics® is a registered trademark  
of BRK Brands, Inc.  
M06-1060-000 08/01  
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