MODEL CO5120B—User’s Manual
AC Pow ered Carbon Monoxide Alarm
With Batter y Back-Up
120VAC 60 Hz .085A Standby .087A Alarm
Model CO5120B
M06-1046-001 6/00
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CHAPTER 1: Introduction
BASIC SAFETY INFORMATION
WARNING!
This unit does not work without power. If the
AC power fails, the battery back-up will power
the alarm for at least 8 hours provided the 9V
battery is fresh and correctly installed.
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 Sounds” 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.
CAUTION!
WARNING!
This CO alarm will only indicate the
presence of carbon monoxide gas at the
sensor. Carbon monoxide gas may be
present in other areas.
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
WARNING!
or industrial standards. Individuals with
medical conditions may consider using
warning devices which provide audible and
visual signals for carbon monoxide
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.
2
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General Information
HOW YOUR CO ALARM WORKS
This CO alarm is designed to be hard-wired and
mounted on any standard size wiring junction
box, up to 4” diagonal size.
The Cover Of Your CO Alarm
When fully powered, this CO alarm samples the
air and takes a new reading 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).
1
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, provided
the 9V battery is fresh and correctly installed.
2
3
4
1
2
3
4
Test/Silence Button
RED Indicator Light (LED)
Air Vents
Silence Feature. The silence feature temporarily
quiets the alarm.
Malfunction Warning
This unit performs self-diagnostic tests
approximately every second. If the alarm
malfunctions, it should be replaced immediately.
(Behind the Cover) Alarm Horn: 85db
audible alarm for test, alarm, and unit
malfunction warning
3
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Basic Operation
Normal Operation.
Low Battery Warning,
AC Power ON:
•
Horn is silent.
•
The horn “chirps”
once a minute.
•
Red light (LED) is
on continuously.
•
Red light flashes once
each time the horn
“chirps”.
During Testing
•
Horn pattern repeats
twice: 4 beeps, pause,
4 beeps, pause.
Low Battery Warning
AC Power OFF:
•
Red light (LED) flashes
once per second during
the 10-second test cycle.
•
The horn “chirps” once
a minute.
•
Red light flashes once
each time the horn
“chirps”.
During An Alarm
•
Continuous repeating
horn pattern: 4 beeps,
pause, 4 beeps, pause.
For a detailed list of all light and horn pattern
combinations, see pages 24-25.
•
Red light (LED) flashes
once per second while
the unit is in alarm.
In Silenced Mode
•
The horn is silent for
at least 4 minutes.
•
Red light (LED) flashes
rapidly, once every
second on the initiating
alarm only.
4
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Supply Voltage: 120VAC 60Hz .085A
Standby .087A Alarm
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
During Alarm: Repeating alarm horn pattern:
4 beeps, pause, 4 beeps, pause.
•
Stand-alone unit: red light (LED) flashes
rapidly, once per second.
•
Interconnected series: red light (LED)
flashes rapidly, once per second on the
Initiating alarm. Red light (LED) on all other
alarms will not flash.
concentrations in parts per million.
Warranty: 5-year limited warranty.
Required Alarm Levels: Before 10% COHb
exposure at levels of 30% to 70% Relative
Humidity (RH):
Standards: Underwriters Laboratories Inc.
Single and Multiple Station carbon monoxide
alarms UL2034.
•
•
•
400 ppm CO between 4 and 15 minutes
150 ppm CO between 10 and 50 minutes
70 ppm CO between 60 and 240 minutes
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 for 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.
Dimensions: 5.4” diameter (approx.)
5
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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
WARNING!
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 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
SUGGESTED AREAS FOR INSTALLING CO ALARMS
6
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WHERE NOT TO INSTALL
CO ALARMS
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.
Within 5 feet of any cooking appliance.
The alarm should be between 5 and 20
feet from any cooking appliance.
Closer than 20 feet from a furnace or other
fuel burning heat source, or fuel burning
appliances like a water heater.
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.
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.
WARNING!
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.
WARNING!
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 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.
In direct sunlight.
7
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The Battery Compartment Lock
USING THE OPTIONAL
LOCKING FEATURES
TO LOCK THE BATTERY COMPARTMENT:
IMPORTANT!
Do not lock the battery compartment until you
have activated the battery and tested the battery
back-up.
The optional locking features are designed to
prevent 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.
These CO alarms have two separate locking
features: one locks the battery compartment,
and the other locks the CO alarm to the
1. Activate the battery
back-up by removing
the “Pull to Activate
Battery Back-Up” tab.
Push and hold the test
button on the CO
mounting bracket. You can choose to use either
feature independently, or use them both.
alarm’s cover until the
alarm sounds: 4 beeps,
pause, 4 beeps, pause.
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.
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.
Battery Drawer Lock
Mounting Bracket Lock
2. Using needle-
nose pliers or a
utility knife,
detach one
locking pin
from the
mounting
bracket.
Locking Pin
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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 battery compartment, save the
locking pin.)
TO UNLOCK THE BATTERY COMPARTMENT:
IMPORTANT!
Once the CO alarm is installed, you must
disconnect it from the AC power before
unlocking the battery compartment.
DANGER!
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 electrical shock, injury or
death.
4. To re-lock the battery compartment, close
the battery 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.
WARNING!
Always discharge the branch circuit before
servicing 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.
IMPORTANT!
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:
DANGER!
•
•
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 electrical shock, injury or
death.
TO ACTIVATE THE BRACKET LOCK:
1. Using needle-nose pliers, detach one locking
pin from the mounting bracket.
WARNING!
Always discharge the branch circuit before
servicing 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.
2. Insert the locking pin into the lock located on
the pivoting hinge of the battery door.
1. Insert a flathead screwdriver between the
mounting bracket pin and the mounting
bracket.
3. When you attach the CO alarm to the
mounting bracket, the locking pin’s head will
fit into a notch on the bracket.
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2. Pry the CO alarm away from the bracket by
turning both the screwdriver and the CO
alarm clockwise (right) at the same time.
HOW TO INSTALL
YOUR CO ALARM
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” and “Where Not To Install” CO
alarms before you begin installation. If a junction
box is not already in place, install one using
standard #12 or #14 gauge copper wire.
WARNING!
This alarm must have AC or battery power
to operate. If the AC power fails, the battery
back-up will power the alarm if the 9V battery
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 air” location you
plan to go if the alarm sounds.
•
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The Parts Of This CO Alarm
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.”
1
3
2
2
6
3
4
5
7
Activating the battery back-up
8
IMPORTANT!
Activate the battery back-up by removing the
“Pull to Activate Battery Back-Up” tab. You do
not need to open the battery compartment and
reposition the battery during installation.
9
1
2
3
4
5
6
7
8
9
Mounting bracket
Mounting slot and screw
Optional locking pins (break out of bracket)
Hot (black) AC wire
Neutral (white) AC wire
When you activate the battery, the red light
will flash once, and the horn will “chirp” once.
Test the battery back-up. Press and hold the
test button on the cover until the alarm sounds:
4 beeps, pause, 4 beeps, pause.
Interconnect wire (violet)
Lever to open battery compartment
Swing-out battery compartment
Quick-connect power connector
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3. Plug the power connector into
the back of the CO alarm.
SINGLE-STATION INSTALLATION
Tools needed: Standard/Flathead screwdriver.
4. Position the base of the alarm
over the mounting bracket and
DANGER!
turn. The alarm can be
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.
positioned over the bracket every 60°. Turn the
unit clockwise (right) until the unit is in place.
5. If you are only installing one unit, restore
power to the junction box.
6. Make sure the unit is receiving AC power.
Under normal operation, the red indicator
light will shine continuously.
To install this unit:
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.
7. 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.
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.
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.
DANGER!
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.
13
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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
Interconnecting Multiple CO Alarms
6
7
8
B
A
}
}
On Initiating Alarm
Red LED flashes rapidly
5
4
3
5
4
3
2
On All Other Alarms Red does not flash
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.
1
1
A
Unswitched 120VAC 60Hz source
B
To additional Model CO5120B
CO Alarms, Maximum = 18 alarms
WARNING!
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
Junction box
IMPORTANT!
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
Neutral (white) AC wire
Interconnect wire (violet)
Hot (black) AC wire
®
met. It is recommended only BRK Electronics
carbon monoxide alarms CO5120B be
interconnected.
14
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3. Using wire nuts, connect the power connector
to the AC power.
Interconnected units must meet ALL of
the following requirements:
•
•
•
Connect the white wire on the
power connector to the neu-
•
A maximum of 18 units total may be
interconnected. (See page 13 for
details.)
tral wire in the junction box
Connect the black wire on
.
•
•
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.
the power connector to the
hot wire in the junction box.
Connect the violet wire on the
power connector to the inter-
connect 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.
•
If an interconnect wire is not already
part of your household wiring, you will
need to install one.
Failure to meet any of the above
requirements could damage the units and
cause them to malfunction, removing your
protection.
4. Plug the power connector
into the back of the CO alarm
.
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
TO INSTALL:
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.
unit clockwise (right) until the unit is in place.
DANGER!
2. Strip off about 1/2” of the plastic coating on
the violet interconnect wire on the power
connector.
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.
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6. Make sure each unit is receiving AC power.
Under normal operation, the red light (LED)
will shine continuously.
IMPORTANT!
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.
7. Test each CO alarm. Press and hold the test
button until the unit alarms: 4 beeps, pause,
4 beeps, pause.
IMPORTANT!
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.
CHAPTER 3: If Your CO Alarm Sounds
the premises have been aired out, and your
CO alarm remains in its normal condition.
WARNING!
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!
(Do not remove or disconnect the 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
immediately.
If the Alarm 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 (everyone) 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,
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Note any combustion equipment not inspected
by the technician, and consult the
light). If you press the Test/Silence on any
other alarm, it will only silence that unit, not
the whole interconnected series.
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:
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:
Using the Silence Feature
If the CO alarm... is silent for only
4 minutes, then starts sounding loudly—
4 beeps, then a pause, 4 beeps, then a pause.
Red light (LED) continues flashing...
WARNING!
NEVER disconnect the power to your CO
alarm to silence the horn—use the silence
feature. Disconnecting the CO alarm removes
your protection! See previous page for details
on responding to an alarm.
This means... CO levels are still potentially
dangerous.
If the CO alarm...remains silent....
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.
This means...unit has returned to normal
operation.
Finding the Source of CO
After an Alarm
When CO reaches the “Alarm” level, it 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.
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.
To silence an interconnected series of alarms,
you must press the Test/Silence button on the
initiating alarm (the unit with the flashing red
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The “ Latching Alarm” Indicator:
KEY:
LATCHING ALARM:
Unit was exposed
to alarm levels of CO
BEDROOM
BEDROOM
BEDROOM
GARAGE
LATCHING NOT ACTIVATED:
Unit was not exposed
to alarm levels of CO
KITCHEN
HALL
LIVING ROOM
BASEMENT
Non-Interconnected or Stand-Alone Alarm
Latching Alarm Indicator shows that the unit
was exposed to alarm levels of CO.
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 “latch”
until you clear it using the test button.
Interconnected Alarms
Latching Alarm Indicator shows which alarm(s)
in the series were exposed to alarm levels of
carbon monoxide.
This feature helps emergency responders,
investigators, 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.
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.
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CHAPTER 4: Testing and Maintenance
NOTE: The low battery warning should last for
Weekly Testing
30 days, but you should replace the battery
immediately to continue your protection.
Push and hold the Test/Silence button on the
cover until a loud alarm sounds— 4 beeps, a
pause, then 4 beeps. The alarm sequence should
last for 10 seconds. If the alarm ever fails to test
properly, replace it immediately. If the CO alarm
is not working properly, refer to Chapter 10:
“Limited Warranty”.
Choosing a replacement battery:
This unit requires one standard 9V alkaline battery.
The following alkaline batteries are acceptable as
replacements. This list supplements 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.
WARNING!
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.
WARNING!
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.
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.
Regular Maintenance
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.
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.
IMPORTANT!
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.
•
Replace the battery when the CO alarm
“chirps” and the red light flashes once a
minute (the low battery warning).
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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.
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.
•
House well ventilated before the
investigator arrives.
Problem caused by “backdrafting.”
Transient CO problem caused by
special circumstances.
•
•
BRK Brands, Inc. shall not be obligated to pay
for any carbon monoxide investigation or
service call.
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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.
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.
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.
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.
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to the outside. Do not use portable/out-
door grills or barbecue indoors, or in
garages or on screen porches.
Check for exhaust backflow from CO
sources. Check the draft hood on an oper-
ating 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 prevent
proper air movement and cause back-
drafting. Never “cap” or cover a chimney
in any way that would block air flow.
Test and maintain all fuel-burning equip-
ment annually. Many local gas or oil com-
panies and HVAC companies offer
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.
•
•
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 appli-
ances. Make sure appliances are vented
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CHAPTER 6: Underwriters Laboratories Inc. UL2034
What Levels of CO Cause an Alarm?
IMPORTANT!
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 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
alarms. However, people with cardiac or
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.
IMPORTANT!
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
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 min-
utes may not affect average, healthy
adults, but after 4 hours the same level
may cause headaches.
poisoning, consult your doctor immediately!
WARNING!
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.
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CHAPTER 7: Troubleshooting Guide
DANGER!
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... It 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 Alarm is not receiving
Unit is operating on DC battery back-up.
Check the AC power supply.
(horn is silent).
AC power.
Once a minute, the red light
flashes and the horn “chirps”.
Low battery warning.
Replace the battery in the battery back-up.
Once a minute, the alarm
sounds 3 quick “chirps”, and
the red light flashes quickly
three times.
Unit malfunction. Unit
needs to be replaced.
Units under warranty should be returned to
manufacturer for replacement. See Chapter 8
“Limited Warranty” for details.
CO alarm goes back into alarm CO levels are
Refer to Chapter 3 “If Your CO Alarm Sounds” for
details on how to respond to an alarm. If anyone is
feeling ill, EVACUATE your home immediately and
call 911.
4 minutes after you press the
Test/Silence button.
still potentially
dangerous.
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
Relocate your alarm. If frequent alarms continue,
have home rechecked for potential CO problems.
You may be experiencing an intermittent CO
Install Your CO Alarm.” problem.
If you have questions you cannot answer by reading the manual, call Consumer Affairs at 1-800-323-9005.
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UNDERSTANDING THE LIGHT AND HORN PATTERNS (AC POWER ON)
When the CO Alarm is operating on AC power...
Condition
LED (Red Light)
Horn
POWER UP
LED flashes ON once,
then shines continuously
Horn “chirps” once.
DURING TESTING
LED flashes once every second
during the 10-second test cycle
Horn pattern: 4 beeps,
pause, 4 beeps, pause.
MISSING BATTERY
(DC back-up disabled)
LED shines continuously
LED shines continuously
Horn is silent.
LOW BATTERY
Horn “chirps” once a minute.
ALARM CONDITION
Single CO Alarm
(not interconnected)
LED flashes rapidly,
once every second
Horn pattern: 4 beeps,
pause, 4 beeps, pause,
repeating.
ALARM CONDITION
Interconnected
Series of CO Alarms
LED flashes rapidly on the unit
that triggered the alarm. LEDs
on the other alarms in the series
will not flash.
Horn pattern: 4 beeps,
pause, 4 beeps, pause
repeating, on all CO
alarms.
IN SILENCE MODE
LED flashes rapidly,
once every second
Horn stays quiet for 4 minutes.
“LATCHING” ALARM
INDICATOR
LED flashes
once every 5 seconds
Horn stays quiet.
MALFUNCTION
LED flashes 3 times
synchronized with 3 rapid chirps
Horn sounds 3 rapid chirps
(“chirp-chirp-chirp”) every
minute.
25
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UNDERSTANDING THE LIGHT AND HORN PATTERNS (AC POWER OFF)
When AC power is Off, and CO alarm is operating on battery back-up...
Condition
LED (Red Light)
Horn
BATTERY BACK-UP
POWER UP
LED flashes ON once,
then flashes once per minute
Horn “chirps” once.
DURING TESTING
LED flashes once every second
during the 10-second test cycle
Horn pattern: 4 beeps,
pause, 4 beeps, pause.
MISSING OR DEAD
BATTERY (DC back-
up disabled)
LED is OFF
Horn is silent.
WARNING: When the AC power is Off, if the battery is dead or missing, the CO alarm cannot work.
LOW BATTERY
LED flashes once per minute
Horn “chirps” once a minute.
ALARM CONDITION
Single CO Alarm
(not interconnected)
LED flashes rapidly,
once every second
Horn pattern: 4 beeps,
pause, 4 beeps, pause,
repeating.
ALARM CONDITION
Interconnected
Series of Alarms
LED flashes rapidly on the unit
that triggered the alarm. LEDs
on the other alarms in the series
will not flash.
Horn pattern: 4 beeps,
pause, 4 beeps, pause
repeating, on all CO
alarms.
IN SILENCE MODE
LED flashes rapidly,
once every second
Horn stays quiet for 4 minutes.
“LATCHING” ALARM
INDICATOR
LED flashes
once every 5 seconds
Horn stays quiet.
MALFUNCTION
LED flashes 3 times
synchronized with 3 rapid chirps
Horn sounds 3 rapid chirps
(“chirp-chirp-chirp”) every
minute.
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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.
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.
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. 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,
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.
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.
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NOTES
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NOTES
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Limited Warranty
BRK Brands, Inc. warrants the enclosed
Carbon Monoxide Alarm to be free from defects
in materials and workmanship under normal use
and service for a period of five years from date of
purchase. BRK Brands, Inc. makes no other
express warranty for this alarm.
No agent, representative, dealer, or employee of
the Company has the authority to increase or alter
the obligations or limitations of this warranty. The
Company’s obligations under this warranty shall
be limited to the replacement of the alarm if it is
found to be defective in materials or workmanship
under normal use and service during the
applicable period from date of purchase. During
the initial one-year period from the date of
purchase, such replacement shall be made
without charge. During the latter four years of the
warranty period, such replacement shall be made
at a charge to the Customer not to exceed the
manufacturer’s cost.
BRK Brands, Inc. makes no warranty, expressed
or implied, written or oral, including that of
merchantability or fitness for any particular
purpose, with respect to the battery.
The Company shall not be obligated to replace
products which are found to be in need of repair
because of damage, unreasonable use,
modifications, or alterations occurring after the
date of purchase.
The duration of any implied warranty, including
that of merchantability or fitness for any
particular purpose, shall be limited to the
period of five years commencing with the date
of purchase. Some states do not allow
limitations on how long an implied warranty
lasts, so the above limitation may not apply to
you. In no case shall the Company be liable for
any consequential or incidental damages for
breach of this or any other warranty, expressed
or implied whatsoever, even if the loss or
damage is caused by the Company’s
negligence or fault.
Some states do not allow the exclusion or
limitation of incidental or consequential
damages, so the above limitation or
exclusion may not apply to you. This
warranty gives you specific legal rights, and
you may also have other rights which vary
from state to state.
During the specified warranty period, products
should be returned with purchase receipt,
shipping prepaid, to: Consumer Affairs,
BRK Brands, Inc., 3920 Enterprise Ct., Aurora, IL
60504-8132, USA. Please enclose a note
describing the problem.
For your records, please record:
Date Purchased:
Where Purchased:
®
BRK Electronics is a registered trademark
M06-1046-001 6/00
of BRK Brands, Inc.
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