BRK electronic C05120BN Smoke Alarm User Manual


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INTRODUCTION
T
hank you for choosing BRK Brands, Inc. for your Carbon Monoxide Alarm
needs. You have purchased a state-of-the-art Carbon Monoxide Alarm
d
esigned to provide you with early warning of carbon monoxide.
K
ey features include:
Intelligent Sensing Technology
is designed to help reduce unwanted or
nuisance alarms.
Single Button Test/Silence eliminates confusion. Depending on what mode
the alarm is in, pushing the button provides different functions such as testing
t
he alarm, silencing the alarm or low-battery signal, re-testing the alarm when
i
n silence and clearing the Latching feature.
L
atching Alarm Indicator
easi
ly identifies initiating alarm even after the alarm
condition has subsided.
S
mart Interconnect
i
nterconnects with most First Alert
®
a
nd BRK branded
smoke, CO and heat alarms. When interconnected with alarming smoke
alarms, unit will sound smoke horn pattern.
Du
st Cover
is i
ncluded to keep the alarm clean during construction.
Easy Installation/Maintenance features include a large opening in the
mou
n
ting bracket for easy access to wiring. A battery pull tab keeps the
b
attery fresh until the home is occupied. A Side Load Battery Drawer allows for
eas
y battery replacement without removing the alarm from the ceiling or wall.
© 2
007 BRK Brands, Inc., a subsidiary of Jarden Corporation.
3
901 Liberty Street Road, Aurora, IL 60504-8122
All rights reserved.
Consu
mer Affairs: (800) 323-9005
www
.brkelectronics.com • www.firstalert.com
BASIC SAFETY INFORMATION
•
Dangers, Warnings, and Cautions alert you to important
operating instructions or to potentially hazardous situations.
P
ay special attention to these items.
•
T
H
IS
IS
N
O
T
A
SMOKE ALARM! This CO Alarm is designed to
de
tect carbon monoxide from ANY source of combustion. It is
N
OT designed to detect smoke, fire, or any other gas.
•
This CO Alarm is approved for use in single-family residences. It is
N
OT designed for marine or RV use.
•
This CO Alarm will only indicate the presence of carbon monoxide
gas a
t the sensor. Carbon monoxide gas may be present in other
areas.
•
This unit does not work without power. If the AC power fails, the
battery back-up will power the alarm for at least 7 days provided
the 9V
b
a
t
ter
y is f
resh and correctly i
ns
talled.
• The Silence Feature is for your convenience only and will not correct
a CO problem. Always check your home for a potential problem after
an
y alarm. Failure to do so can result in injury or death.
•
This CO Alarm should receive continuous 120VAC, 60 Hz, pure sine
w
ave electrical power. (The battery is meant for emergency back-
up only)
.
D
o n
o
t us
e i
n an extension cord or outlet controlled by a
di
mmer or switch. In order for the emergency battery back-up to
w
ork, a working (fresh) battery must be properly installed.
•
NEVER ignore any alarm. See “If Your CO Alarm Sounds” for more
i
nf
orma
ti
on on h
o
w t
o respond t
o an a
larm. Failure to respond can
result i
n i
n
jury or death.
•
Test this Carbon Monoxide Alarm once a week. If it ever fails to
tes
t correctly, have it replaced immediately! If the CO Alarm is not
w
orking properly, it cannot alert you to a problem.
• This product is intended for use in ordinary indoor locations of
f
am
i
ly living units. It is not designed to measure CO levels in
compl
iance with Occupational Safety and Health Administration
(OSHA) commercial or industrial standards. Individuals with
medi
ca
l conditi
ons tha
t ma
y ma
k
e them m
ore sensitive to carbon
m
onoxide may consider using warning devices which provide
audible and visual signals for carbon monoxide concentrations
under 3
0 ppm. For additional information on carbon monoxide and
y
our medical condition contact your physician.
HOW YOUR CO ALARM WORKS
T
he Cover Of Your CO Alarm
U
N
D
ERSTANDING THE LIGHT AND HORN PATTERNS
(CO5120BN)
Models
C
O5120BN,
CO5120PDBN
M08-0002-002 Q 04/07 Printed in Mexico
IMPORTANT! PLEASE READ CAREFULLY AND SAVE.
T
his user’s manual contains important information
about your CO Alarm’s operation. If you are installing
this CO Alarm for use by others, you must leave this
ma
nual—or a copy of it—with the end user.
5 6 7 2 3
USER’S MANUAL
AC POWERED
CARBON MONOXIDE ALARM
120VAC ~, 60Hz, 0.09A
4
Printed in Mexico M08-0002-002 Q 04/07
First Alert
®
is a registered trademark of the First Alert Trust.
LIMITED WARRANTY
BRK Brands, Inc., ("BRK") the maker of First Alert
®
brand products warrants that for a period of five years from the date of purchase, this product will be free from
defects in material and workmanship. BRK, at its option, will repair or replace this product or any component of the product found to be defective during the warranty
pe
riod. 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
pr
od
uct o
f e
qual or greater value. This is your exclusive warranty. This warranty is valid for the original retail purchaser from the date of initial retail purchase and is not
transferable. Keep the original sales receipt. Proof of purchase is required to obtain warranty performance. BRK dealers, service centers, or retail stores selling BRK
products do not have the right to alter, modify or any way change the terms and conditions of this warranty.
T
h
is w
arranty 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
curr
e
n
t
,
use contrary to the operating instructions, disassembly, repair or alteration by anyone other than BRK or an authorized service center. Further, the warranty
does not cover Acts of God, such as fire, flood, hurricanes and tornadoes or any batteries that are included with this unit.
B
RK shall not be liable for any incidental or consequential damages caused by the breach of any express or implied warranty. Except to the extent prohibited by applicable
la
w
,
any implied warranty of merchantability or fitness for a particular purpose is limited in duration to the duration of the above warranty. Some states, provinces or
jurisdictions do not allow the exclusion or limitation of incidental or consequential damages or limitations on how long an implied warranty lasts, so the above limitations
or exclusion may not apply to you. This warranty gives you specific legal rights, and you may also have other rights that vary from state to state or province to province.
How to Obtain Warranty Service
Service:
If service is required, do not return the product to your retailer. In order to obtain warranty service, contact the Consumer Affairs Division at 1-800-323-9005,
7:30 AM - 5:00 PM Central Standard Time, Monday through Friday. To assist us in serving you, please have the model number and date of purchase available when
calling.
For Warranty Service return to: BRK Brands, Inc., 25 Spur Drive, El Paso, TX 79906
B
a
ttery:
B
R
K Brands, Inc. make no warranty, express or implied, written or oral, including that of merchantability or fitness for any particular purpose
w
it
h r
e
spect to battery.
WEEKLY TESTING
P
ush and hold the Test/Silence button until you hear an acknowledge chirp and
a loud alarm sounds — 4 beeps, pause, 4 beeps. This sequence should last for
1
0 seconds. If the Alarm ever fails to test properly, replace it immediately. If the
Alarm is no
t working properly, refer to “Limited Warranty”.
•
If the Alarm ever fails to test properly, replace it immediately.
P
roducts under warranty may be returned to the manufacturer for
repl
a
cemen
t
.
S
ee
“Limited Warranty” at the end of this manual.
• DO NOT stand close to the Alarm when the horn is sounding.
Ex
po
sure a
t cl
o
s
e ran
ge ma
y be harmful to your hearing. When
tes
ting, step away when horn starts sounding.
•
N
E
V
E
R us
e v
ehicle exhaust! Exhaust may cause permanent damage
and voids your warranty.
RE
G
U
LAR M
AI
N
T
E
N
AN
CE
To keep the CO Alarm working properly:
• Test it every week as described in “Weekly Testing.”
• Vacuum the CO Alarm cover at least once a month, using the soft brush
a
ttachment. Never use water, cleaners, or solvents, since they may damage
the unit. Test the Alarm again after vacuuming.
•
Replace the battery immediately when you see/hear the
“Low Battery Warning”.
The Low (or Missing) Battery Warning (CO5120PDBN):
T
he horn will “chirp” once a minute and the word “bat” will flash on and off on
the display.
REPLACING THE BATTERY
Ch
o
osing a replacement battery:
T
h
is unit requires one standard 9V alkaline
b
attery. The following alkaline batteries are acceptable as replacements:
D
ur
acel
l #M
N1604 or MX1604; Eveready “Energizer” 522. You can also use an
Ultralife 9 volt lithium battery #U9VL for longer service life between battery
changes. These replacement batteries are commonly available at local retail
stores.
Use only the alkaline or lithium replacement batteries listed. The unit may not
operate properly with other batteries. Never use rechargeable batteries since
t
he
y may not provide a constant charge.
DO NOT spray cleaning chemicals or insect sprays directly on or near
the CO Alarm. DO NOT paint over the CO Alarm. Doing so may cause
permanen
t dama
ge.
•
Household cleaners, aerosol chemicals and other contaminants can affect the
se
nsor. When using any of these materials near the CO Alarm, make sure the
room is well ventilated.
• If your home is being fumigated, unplug the unit temporarily and put it
where it will not be exposed to chemicals or fumes. When fumigation is
complete and all traces of fumes clear, plug the unit back in and retest it.
S
tandards:
U
nderwriters Laboratories Inc. Single and Multiple Station carbon
mono
xide alarms UL2034.
Accor
ding to Underwriters Laboratories Inc. UL2034, Section 1-1.2: “Carbon
monoxide alarms covered by these requirements are intended to respond to
t
he presence of carbon monoxide from sources such as, but not limited to,
e
xhaust from internal-combustion engines, abnormal operation of fuel-fired
a
p
p
l
ia
nce
s, and fireplaces. CO Alarms are intended to alarm at carbon
mono
xide levels below those that could cause a loss of ability to react to the
d
angers of Carbon Monoxide exposure.” This CO Alarm monitors the air at
the Alarm, and is designed to alarm before CO levels become life threatening.
T
his allows you precious time to leave the house and correct the problem.
T
his is only possible if Alarms are located, installed, and maintained as
d
escribed in this manual.
Gas D
etection at Typical Temperature and Humidity Ranges:
T
he CO Alarm
is no
t 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),
E
t
h
y
l
Ace
tate (200 ppm), Isopropyl Alcohol (200 ppm) and Carbon Dioxide (5000
p
pm). Values measure gas and vapor concentrations in parts per million.
A
udible Alarm:
85 dB m
inimum at 10 feet (3 meters).
T
ROU
BL
ES
HOO
T
I
N
G G
UIDE
Problem... If the Alarm.. 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
sur
e a f
r
e
sh 9V
b
a
tt
ery is installed to power the
b
attery back-up.
Red light flashes once a minute (horn is silent).
(CO5120PDBN display reads “bat”).
Alarm is not receiving AC power. Unit is operating on DC battery back-up. Check the
AC power supply.
Once a minute, the red light flashes and the horn
“chirps”. (CO5120PDBN display flashes “bat”).
Low battery warning. 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.
(CO5120PDBN display reads “Err”).
MALFUNCTION SIGNAL. Based on its Self Test
diagnostics, the unit has detected a malfunction.
The unit needs to be replaced.
Make sure a fresh 9V battery is installed. If unit still
isn’t functioning– REPLACE IT. Units under warranty
should be returned to manufacturer for
replacement. See “Limited Warranty” for details.
CO Alarm sounds frequently even though no high
levels of CO are revealed in an investigation.
The CO Alarm may be improperly located.
Refer to “Where to Install CO Alarms.”
Relocate your Alarm. If frequent alarms continue, have
home rechecked for potential CO problems. You may
be experiencing an intermittent CO problem.
2
1
5
3
4
IF
YOUR CO ALARM SOUNDS
A
ctuation of your CO Alarm indicates the presence of carbon monoxide (CO)
w
hich can kill you. When your CO Alarm sounds, you must not ignore it!
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
n
umber of your local emergency service here:
________________________________________________________________
3
. Immediately move to fresh air—outdoors or by an open door or window.
Do a head count to check that all persons are accounted for. Do not re-
enter the premises, or move away from the open door or window until the
e
mergency services responder has arrived, the premises have been aired
out, and your CO Alarm remains in its normal condition.
4
.
Af
ter following steps 1-3, if your CO Alarm reactivates within a 24-hour period,
r
epeat steps 1-3 and call a qualified appliance technician to investigate for
sources of CO from fuel-burning equipment and appliances, and inspect for
pr
oper operation of this equipment. If problems are identified during this
i
nspection have the equipment serviced immediately. Note any combustion
equipment not inspected by the technician, and consult the manufacturers’
i
nstructions, or contact the manufacturers directly, for more information about
C
O 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.
W
rite down the number of a qualified appliance technician here:
__________________________
_______________________________________
Al
arms have various limitations. See "General Limitations of CO Alarms"
f
or details.
USING THE SILENCE FEATURE
NEVER disconnect the power to your CO Alarm to silence the horn—
use the silence feature. Disconnecting the CO Alarm removes your
pr
otection! See previous page for details on responding to an alarm.
The Silence Feature is intended to temporarily silence your CO Alarm’s alarm
horn w
hile you correct the problem—it will not correct a CO problem. While the
Alarm is si
lenced, it will continue to monitor the air for CO.
W
hen CO reaches
alarm level, the unit will sound— repeating horn pattern: 4 beeps, a pause, 4
be
eps, etc. Press and hold the Test/Silence button until the horn is silent. The
Si
lence cycle will last approximately 4 minutes.
T
o silence an interconnected series of Alarms, you must press the Test/
Si
lence 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,
n
ot the whole interconnected series.
N
O
TE:
Af
t
er the 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 CO Alarm is silenced:
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...
T
his means...
C
O levels are still potentially dangerous.
If the C
O Alarm...
r
emains silent....
T
his means...
u
nit has returned to normal operation.
S
ILENCING THE LOW BATTERY WARNING
T
h
is silence feature can temporarily quiet the low battery warning “chirp” for
up to 8 hours if AC power is present. Press the Test/Silence button on the
a
larm cover. Once the low battery warning “chirp” silence feature is activated,
t
he unit continues to flash the red light once a minute for 8 hours. After 8
hour
s
,
t
he l
o
w b
a
ttery “chirp” will resume.
R
epl
a
ce the b
a
t
ter
y as s
oon as
po
ss
ible,
t
o ma
intain protection in the event of a power outage.
THE “LATCHING ALARM” INDICATOR:
The Latching Alarm Indicator is activated after a CO Alarm is exposed to
a
larm levels of carbon monoxide. After CO levels drop below alarm levels, the
r
e
d L
E
D w
ill begin to flash once every 5 seconds. It will continue to flash or
“latch” until you clear it by testing the alarm.
T
his feature helps emergency responders, investigators, or service technicians
id
entify which unit(s) in your home were exposed to alarm levels of carbon
mono
x
id
e
.
T
h
is ca
n help investigators pinpoint the source of CO.
Interconnected Alarms. Latching Alarm Indicator shows which Alarm(s) in the
se
r
ie
s w
e
r
e e
x
pose
d to alarm levels of carbon monoxide.
T
he La
t
ch
i
ng
Alarm I
nd
ica
tor stays ON until you clear it, so it can alert you to
a C
O
Alarm that occurred while you were away from home, even though CO
present in the air has dropped below alarm levels.
GARAGE
BEDROOM
BEDROOM
HALL
LIVING ROOM
KITCHEN
BASEMENT
BEDROOM
LATCHING ALARM: 
Unit was exposed 
to alarm levels of CO
LATCHING NOT ACTIVATED: 
Unit was not exposed 
to alarm levels of CO
KEY:
T
he op
tional locking features are designed to prevent unauthorized removal of
the b
a
t
ter
y or a
l
arm. It is not necessary to activate the locks in single-family
households where unauthorized battery or alarm removal is not a concern.
T
he
se C
O
Alarms ha
v
e tw
o se
p
ar
ate locking features: one locks the battery
com
p
ar
tment, and the other locks the CO Alarm to the mounting bracket.
You can choose to use either feature independently, or use them both.
T
o
ols y
ou w
i
ll need:
• N
e
e
d
le-nose p
liers • Standard Flathead screwdriver.
Bo
t
h locking features use locking pins, molded into the mounting bracket. Using
ne
edle nose pliers remove one or both pins, depending on which locking features
y
ou use.
USING THE OPTIONAL LOCKING FEATURES
Locking Pin
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.
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 Alarm’s cover until you hear an
ack
nowledge chirp and the alarm sounds: 4 beeps,
p
ause, 4 beeps, pause.
If the unit does n
ot alarm during testing, DO NOT
l
ock 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, detach one
locking pin from the mounting bracket.
3. Push the locking pin through the black
dot on the label on the back of the CO
Alarm.
T
O U
NLOCK THE
BATTERY COMPARTMENT:
Once the CO Alarm is installed, you must disconnect it from the AC power
before unlocking the battery compartment.
E
L
E
C
T
R
I
CAL 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.
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 Alarms with battery back-up. Finally, press and
hold the test button for 5-10 seconds to discharge the branch circuit.
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 relock the
b
a
ttery compartment, save the locking pin.)
4
.
T
o r
el
ock t
he b
a
tt
ery compartment, close the bat-
tery door and reinsert the locking pin in the lock.
5
.
Re
con
ne
ct t
he po
wer connector to the back of the CO Alarm, reattach the
CO Alarm to the mounting bracket, and restore the power.
When replacing the battery, always test the CO Alarm before relocking the
b
a
tt
ery compartment.
T
HE MOU
N
T
I
N
G BR
A
C
KET LOCK
T
o
ols y
ou w
i
l
l need:
• N
e
e
d
le-nose p
l
ie
r
s
• S
t
a
ndard Flathead screwdriver
TO ACTIVATE THE BRACKET LOCK:
1. Using needle-nose pliers, detach one locking pin
f
r
om t
he mou
n
ting bracket.
2. Insert the locking pin into the
lock located on the pivoting
h
inge of the battery door.
3
. When you attach the CO Alarm
t
o the mounting bracket, the
locking pin’s head will fit into a
no
t
ch on t
he bracket.
TO DEACTIVATE THE BRACKET LOCK:
ELECTRICAL SHOCK HAZARD. Turn off the power to the area where the
C
O
Alarm is installed before removing it from the mounting bracket.
F
ailure to turn off the power first may result in serious electrical shock,
i
n
j
ury or death.
Al
w
a
ys 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 Alarms with battery back-up. Finally, press
and hold the test button.
1.
Insert a flathead screwdriver between the
mounting bracket pin and the mounting bracket.
2. Pry the CO Alarm away from the bracket by
turning both the screwdriver and the CO Alarm
counterclockwise (left) at the same time.
TO PERMANENTLY REMOVE THE BRACKET LOCK:
I
nse
rt the flathead screwdriver
between the locking pin and the
lock, and pry the pin out of the lock.
INSTALLATION
WHERE TO INSTALL CO ALARMS
T
he National Fire Protection Association (NFPA) recommends that a CO Alarm
shou
ld be ce
ntrally located outside of each separate sleeping area in the
i
mmediate vicinity of the bedrooms. For added protection, install additional CO
Alarms i
n each separate bedroom, and on every level of your home.
I
f your bedroom hallway is longer than 40 feet (12 meters), install a CO Alarm
at BOTH ends of the hallway.
I
n a Single-level Home:
•
Install at least one CO Alarm near or within each separate sleeping area.
•
F
or added protection, install an additional CO Alarm at least 20 feet
(6 me
t
e
r
s)
,
a
way from the furnace or fuel burning heat source.
I
n a M
ulti-le
v
el Home
—
(s
ame as ab
o
v
e plus):
•
Install at least one CO Alarm near or within each separate sleeping area.
•
F
or ad
d
e
d pr
o
tection, 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
b
ase
me
n
t s
tairs.
•
F
or ad
d
e
d protection, install an additional CO Alarm at least 20 feet
(6 meters) away from the furnace or fuel burning heat source.
WHERE CO ALARMS SHOULD NOT BE INSTALLED
DO NOT locate this CO Alarm:
•
I
n gar
ag
e
s
,
kitchens, furnace rooms, or in any extremely dusty, dirty
or gr
easy areas.
•
Where combustion particles are produced. Combustion particles form
when something burns. Areas to avoid include poorly ventilated kitchens,
garages, and furnace rooms. Keep units at least 20 feet (6 meters) from
t
he sour
ce
s o
f com
bustion particles (stove, furnace, water heater, space
heater) if possible. In areas where a 20-foot (6 meter) distance is not
possible — in modular, mobile, or smaller homes, for example — it is
recommended the CO Alarm be placed as far from these fuel-burning
sour
ce
s as possible. The placement recommendations are intended to
k
eep these Alarms at a reasonable distance from a fuel-burning source,
a
nd thus reduce “unwanted” alarms. Unwanted alarms can occur if a CO
Alarm is placed directly next to a fuel-burning source. Ventilate these areas
as much as possible.
• Within 5 feet (1.5 meter) of any cooking appliance.
• In extremely humid areas. This Alarm should be at least 10 feet (3 meter)
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 non-airconditioned crawl spaces, unfinished
attics, uninsulated or poorly insulated ceilings, porches, and garages.
•
I
n t
urb
ulent air, like near ceiling fans, heat vents, air conditioners,
fresh air returns, or open windows. Blowing air may prevent CO from
reaching the sensors.
•
I
n d
ir
ect sunlight.
• This CO Alarm is designed for use inside a single-family home or
apartment. It is not meant to be used in common lobbies, hallways,
or basements of multi-family buildings unless working CO Alarms
are also installed in each family living unit. CO Alarms in common
areas may not be heard from inside individual family living units.
• This CO Alarm alone is not a suitable substitute for complete
detection systems in places which house many people, like hotels
or dormitories, unless a CO Alarm is also placed in each unit.
• DO NOT use this CO Alarm in warehouses, industrial or commercial
buildings, special-purpose non-residential buildings, RVs, boats,
or ai
rplanes. This CO Alarm is specifically designed for residential
us
e
,
and may not provide adequate protection in non-residential
applications.
GARAGE
SUGGESTED AREAS FOR INSTALLING ADDITIONAL CO ALARMS
BEDROOM
BEDROOM
H
ALL
LIVING ROOM
K
ITCHEN
BASEMENT
B
EDROOM
REQUIRED TO MEET NFPA RECOMMENDATIONS
BEFORE YOU BEGIN INSTALLATION
T
his unit is designed to be mounted on any standard wiring junction box up
to a 4-inch (10 cm) size, on either the ceiling or wall. Read “Where to Install CO
Alarms” and “Where Not To Install CO Alarms” before you begin installation.
I
f 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
po
wer 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
f
ails, and the battery is dead or missing, the Alarm cannot operate.
•
Make sure the alarm is not receiving excessive noisy power.
Examples of noisy power could be major appliances on the same
ci
rcuit, power from a generator or solar power, light dimmer on the
s
ame circuit or mounted near fluorescent lighting. Excessive noisy
power may cause damage to your Alarm.
F
ind 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.
N
OTE:
A
qualified appliance technician is defined as “a person, firm, corporation,
or com
pany that either in person or through a representative, is engaged in and
responsible for the installation, testing, servicing, or replacement of heating,
v
entilation, air conditioning (HVAC) equipment, combustion appliances and
e
quipment, and/or gas fireplaces or other decorative combustion equipment.”
P
ARTS OF THIS CO ALARM
1 Mounting Bracket
2
Mounting Slot and Screw
*
3 Locking Pins (break out of
bracket)
4
Hot (Black) AC Wire
5
Neutral (White) AC Wire
6 Interconnect Wire (Orange)
7 Lever to Open Battery
Com
partment
8 Swing-Out Battery
Com
partment
9 Quick-Connect Power
*Not Included
1
2
3
2
9
8
7
3
5
6
4
T
ools you will need:
S
tandard Flathead screwdriver.
ELECTRICAL SHOCK HAZARD. Turn off power to the area where you
w
ill install this unit at the circuit breaker or fuse box before beginning
i
nstallation. Failure to turn off the power before installation may result
in serious electrical shock, injury or death.
To install this unit:
1. Remove the mounting bracket from the base. Position the screw
sl
ots on the mounting bracket over the screws in the junction box.
T
ighten the screws.
2
. Using wire nuts, connect the power connector to the AC power.
I
mproper wiring of the power connector or the wiring leading to the
po
w
er connect
or w
i
l
l cause damage to the Alarm and may lead to a
non-functioning Alarm.
3
.
Plug the power connector into the back of the CO Alarm.
4. Position the base of the Alarm over the mounting bracket and turn. The
Alarm ca
n be posit
ione
d o
v
er the bracket every 60°. Turn the unit clockwise
(r
ight) until the unit is in place.
5. Check all connections.
S
TAND ALONE ALARM ONLY:
• Connect the white wire on the power connector to the neutral wire
i
n the junction box.
•
Connect the black wire on the power connector to the hot wire in
the junction box.
•
Tuck the orange wire inside the junction box.
I
t is used for
i
nterconnect only.
I
N
T
E
R
C
O
NNECTED ALARMS ONLY:
S
tri
p o
f
f ab
out
1/2” of the plastic coating on the orange interconnect
w
ire on the power connector.
•
Connect the white wire on the power connector to the neutral wire
(usua
l
l
y w
h
it
e) in the junction box.
• Connect the black wire on the power connector to the hot wire (usually
b
lack) in the junction box.
• Connect the orange wire on the power connector to the interconnect
w
ire in the junction box. Repeat for each unit you are interconnecting.
N
ever connect the hot or neutral wires in the junction box to the
orange interconnect wire.
SPECIAL REQUIREMENTS FOR INTERCONNECTED CO ALARMS
• Failure to meet any of the above requirements could damage the
units and cause them to malfunction, removing your protection.
•
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
s
ignals. AC powered CO Alarms will not operate.
Interconnected units can provide earlier warning of a CO problem than stand-
a
lone units, especially if the problem starts in a remote area of the dwelling. If
a
ny unit in the series senses CO, all units will alarm. To determine which CO
Alarm initiated an alarm, refer to the table.
O
n Initiating CO Alarm Red LED Flashes Once per Second
On All Other CO Alarms Red LED Does Not Flash Once per Second
I
nterconnect units within a single family residence only. Otherwise all house-
ho
lds will experience unwanted alarms when you test any unit in the series.
I
nterconnected units will only work if they are wired to compatible units and
all requirements are met.
This unit is designed to be compatible with: BRK
E
lectronics
®
Smo
ke Alarm Models SC6120B, 4120, 4120B, 4120SB, 4919,
2
00
2RAC, 100S, 5919, 5919TH;
B
R
K Electronics
®
H
ea
t Alarm Models HD6135F,
HD6135FB; BRK Electronics
®
CO Alarm Models SC6120B, CO5120BN,
C
O5120PDBN; and
F
irst Alert
®
Smo
ke Alarm Models SA4120B, SA4121B,
SA4
919B, SA100B.
I
nterconnected units must meet ALL of the following requirements:
•
A maximum of 18 compatible BRK Electronics
®
Smo
ke, Heat or CO
Alarms may be interconnected. No more than 12 of the 18 can be Smoke
Alarms pe
r N
FP
A
7
2
.
•
T
he sa
me f
use or cir
cu
it br
ea
ker must power all interconnected units.
•
T
he t
o
t
a
l le
ngth of wire interconnecting the units should be less than
1000 feet. The interconnect wire should be Type 18 gauge AWM or larger,
r
ated at least 300V. If an interconnect wire is not already part of your
house
hold wiring, you will need to install one. This type of wire is
com
mon
l
y a
v
ailable at Hardware and Electrical Supply stores.
•
Al
l w
ir
i
ng must conform to all local electrical codes and Article 760 of
t
he National Electrical Code. Refer to NFPA, Chapter 2 and/or your local
b
u
i
lding code for further connection requirements.
6.
Make sure the CO Alarm is receiving AC power. Under normal operation,
t
he red indicator light will shine continuously.
I
f the red power indicator light
d
oes not light, TURN OFF POWER TO THE JUNCTION BOX and recheck
all connections. If all connections are correct and the red power indicator
s
till does not light when you restore the power, the unit should be replaced
i
mmediately.
7.
ACTIVATING THE BATTERY BACK-UP
Activate the battery back-up by removing the “Pull to Activate Battery
Back-U
p” tab. 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.
8
.
T
est the CO Alarm.
P
ress and hold the test button on the cover until the
alarm sounds: 4 beeps, pause, 4 beeps, pause. In a series of interconnected
Alarms
, you must test each Alarm separately by pressing and holding the
t
est button. Make sure all units alarm when each one is tested.
If any unit in the series does not alarm during testing, TURN OFF POWER
a
nd recheck connections. If it does not alarm when you restore power,
replace it immediately.
6
7
8
4
3
1
5
4
3
1
5
2
A
B
}
}
A.
U
nswitched 120VAC B. To Additional Alarms,
6
0 Hz sour
ce
M
a
x
imum = 18 Alarms
1. CO Alarm
2. Ceiling or Wall
3
.
P
o
w
e
r Connector
4. Wire Nut
5. Junction Box
6
.
N
e
ut
r
al Wire (White)
7. Interconnect Wire
(O
r
a
ng
e)
8
. Hot Wire (Black)
STAND ALONE ALARM ONLY:
•
If you are only installing one unit, restore power to the junction box.
INTERCONNECTED ALARMS ONLY:
•
If you are interconnecting multiple Alarms, repeat Step 1-5 for
ea
ch Alarm in the series. When you are finished, restore power
to the junction box.
E
LECTRICAL SHOCK HAZARD. Do not restore power until all Alarms are
completely installed. Restoring power before installation is complete may
result in serious electrical shock, injury or death.
HOW TO INSTALL YOUR CO ALARM
FINDING THE SOURCE OF CO AFTER AN ALARM
Carbon monoxide is an odorless, invisible gas, which often makes it difficult to
l
ocate the source of CO after an alarm. These are a few of the factors that can
make it difficult to locate sources of CO:
•
House well ventilated before the investigator arrives.
• Problem caused by “backdrafting.”
• Transient CO problem caused by special circumstances.
Be
cause CO may dissipate by the time an investigator arrives, it may be
difficult to locate the source of CO.
BRK Brands, Inc. shall not be obligated
t
o pay for any carbon monoxide investigation or service call.
POTENTIAL SOURCES OF CO IN THE HOME
F
uel-burning appliances like:
portable heater, gas or wood
b
urning fireplace, gas kitchen range
or coo
ktop, gas clothes dryer.
D
amaged or insufficient
venting:
corroded or disconnected
w
ater heater vent pipe, leaking
chimney pipe or flue, or cracked
heat exchanger, blocked or
cl
ogged chimney opening.
Improper use of appliance/
de
vice:
ope
rating 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 ca
used by outdoor conditions and other special circumstances.
The following conditions can result in transient CO situations:
1
.
Excessive spillage or reverse venting of fuel appliances caused by outdoor
cond
itions such as:
• Wind direction and/or velocity, including high, gusty winds. Heavy air in
t
he 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
w
ater heaters.
• Obstructions in or unconventional vent pipe designs which can amplify
t
he a
bove situations.
2
.
E
xtended 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.
Si
nce t
he
se cond
it
ions ca
n come and go, they are also hard to recreate during
a C
O investigation.
CO Alarm goes back into alarm 4 minutes after
you press the Test/Silence button.
CO levels are still potentially dangerous. Refer to “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.
T
his CO Alarm is intended for residential use. It is not intended for use in
i
ndustrial applications where Occupational Safety and Health Administration
(O
SHA) requirements for carbon monoxide detectors must be met.
C
O alarms may not waken all individuals.
I
f children or others do not readily
waken to the sound of the CO alarm, or if there are infants or family members
w
it
h mob
i
l
ity l
imitations, make sure that someone is assigned to assist them
i
n the event of an emergency.
C
O Alarms will not work without power.
T
his CO Alarm requires a continuous
supply of AC power, and a fresh, correctly installed 9V battery to power the
b
attery back-up. The battery back-up is for emergency use only!
C
O Alarms for Solar or Wind Energy users and battery backup power
s
y
s
tems:
A
C po
w
ered CO Alarms should only be operated with true or pure
si
ne wave inverters. Operating this CO Alarm with most battery-powered UPS
(u
ninterruptible power supply) products or square wave or “quasi sine wave”
inverters
will damage the Alarm. If you are not sure about your inverter or
U
PS type, please consult with the manufacturer to verify.
T
his CO Alarm will not sense carbon monoxide that does not reach the
s
ens
or
.
T
h
is C
O
Alarm w
ill only sense CO at the sensor. CO may be present
in other areas. Doors or other obstructions may affect the rate at which CO
r
eaches the CO Alarm. For this reason, if bedroom doors are usually closed
a
t night, we recommend you install a CO Alarm in each bedroom and in the
ha
llway between them.
C
O Alarms may not sense CO on another level of the home.
F
or example,
a C
O 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.
Com
plete coverage is recommended. Place CO Alarms on each level of the
home
.
C
O Alarms may not be heard.
T
he Alarm horn loudness meets or exceeds
curr
ent UL standards of 85 dB at 10 feet (3 meters). However, if the CO Alarm
is i
nstalled outside the bedroom, it may not wake up a sound sleeper or one
w
ho has recently used drugs or has been drinking alcoholic beverages. This
is e
spe
cia
l
l
y t
rue if the door is closed or only partly open. Even persons who
ar
e 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.
T
h
is C
O Alarm is not intended for people who are hearing impaired.
C
O
Al
arms are not a substitute for a smoke alarm.
Alt
houg
h fir
e is a source
of carbon monoxide, this CO Alarm does not sense smoke or fire. This CO
Alarm se
nses CO that may be escaping unnoticed from malfunctioning
f
urnaces, appliances, or other sources. Early warning of fire requires the
i
nstallation of smoke alarms.
C
O
Alarms are not a substitute for life insurance. T
houg
h these CO Alarms
w
arn aga
i
ns
t 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.
C
O Alarms have a limited life.
Alt
hough the CO Alarm and all of its parts have
p
assed many stringent tests and are designed to be as reliable as possible,
a
ny of these parts could fail at any time. Therefore, you must test your CO
Alarm w
eekly.
C
O Alarms are not foolproof.
L
ike 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
r
emote part of the home, away from the CO Alarm.
UNDERWRITERS LABORATORIES INC. UL2034
WH
AT LEVELS OF CO CAUSE AN ALARM?
U
nderwriters Laboratories Inc. Standard UL2034 requires residential CO
Alarms to sound when exposed to levels of CO and exposure times as
d
escribed below. They are measured in parts per million (ppm) of CO over
t
ime (in minutes).
U
L2034 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
1
0 and 50 MINUTES.
• If the Alarm is exposed to 70 ppm of CO, IT MUST ALARM BETWEEN
6
0 a
nd 240 MINUTES.
* Approximately 10% COHb exposure at levels of 10% to 95% Relative
H
umidity (RH).
T
he u
nit is designed not to alarm when exposed to a constant level
of 30 ppm for 30 days.
CO Alarms are designed to alarm before there is an immediate life threat.
Si
nce you cannot see or smell CO, never assume it’s not present.
•
An exposure to 100 ppm of CO for 20 minutes may not affect average,
hea
lthy adults, but after 4 hours the same level may cause headaches.
•
An exposure to 400 ppm of CO may cause headaches in average,
hea
lthy adults after 35 minutes, but can cause death after 2 hours.
G
ENERAL LIMITATIONS OF CO ALARMS
E
LECTRICAL SHOCK HAZARD. Turn off the power to the area where
the C
O
Alarm is installed BEFORE removing it from the mounting
bra
ck
e
t or check
i
n
g an
y electrical connections! Failure to turn off the
power first may result in serious electrical shock, injury or death.
T
he following guide can help you identify a potential problem with the
i
ns
t
a
l
la
t
ion or operation of your CO Alarm.
N
O
T
E: I
t is n
o
t mean
t to be
an a
ll-inclusive list of all CO Alarm conditions.
I
f you are experiencing a
condition not covered in the next several pages, please contact Consumer
Af
f
a
ir
s
.
Condition LED (Red Light) Horn
POWER UP LED flashes on once, Horn “chirps”
then shines continuously once.
DURING TESTING LED flashes once every second Horn pattern:
during the test cycle 4 beeps, pause,
4 beeps, pause
LOW OR MISSING LED flashes once a minute Horn “chirps”
BA
T
TERY once a minute
MISSING OR DEAD LED is OFF Horn is silent
BA
T
T
E
R
Y (DC back-
up disabled
WARNING: When the AC power is Off, if the battery is dead or missing,
the CO Alarm cannot work.
ALARM CONDITION LED flashes once every second Horn pattern:
Single CO Alarm 4 beeps, pause,
(not interconnected) 4 beeps, pause,
r
e
pea
t
i
ng
ALARM CONDITION LED flashes rapidly on the units Horn pattern:
Interconnected that triggered the alarm. LEDs 4 beeps, pause,
Series of CO Alarms on the other Alarms in the series repeating on all
will not flash CO Alarms
I
N S
ILENCE MODE LED flashes once every second Horn stays quiet
on i
n
it
ia
t
ing Alarm for 4 minutes
“LATCHING” ALARM LED Flashes once every Horn stays quiet
INDICATOR 5 seconds
M
A
L
F
U
N
C
TION LED flashes 3 times Horn sounds
synchronized with 3 rapid chirps 3 rapid chirps
(ch
irp-chirp-chirp)
e
v
e
ry minute
1
H
OW YOUR CO ALARM WORKS, Continued
DISPLAY CONDITIONS (CO5120PDBN)
Alarm ope
rating
on
AC power
Alarm ope
rating
on e
mergency
battery back-up
L
ow / missing
b
attery warning
“
Err” Alarm is
no
t operating
properly
What you see and hear if CO is detected:
PRE-ALARM LEVELS :
H
ORN:
Si
lent
DISPLAY: Shows CO levels
d
etected in ppm (CO5120PDBN)
POWER/ALARM LIGHT:
O
n continuously
A
LARM LEVELS OF CO ARE
D
ETECTED:
HORN:
Sounds loudly - 4 beeps,
p
ause, 4 beeps, pause.
This sequence repeats for as
long as the unit is in alarm*
D
ISPLAY:
Sho
ws CO levels
detected in ppm (CO5120PDBN)
P
OWER/ALARM LIGHT:
Flashes rapidly
*N
ote: If unit goes into alarm
u
nder battery back-up power,
the regular 4 beeps-brief pause
c
ycle will repeat for four minutes.
Af
ter four minutes, the pause will
increase to 1 minute.
IF YOU SILENCE THE ALARM:
H
ORN:
Si
lent for about
4 minutes*
D
ISPLAY:
Sho
ws CO levels
d
etected in ppm (CO5120PDBN)
P
OWER/ALARM LIGHT:
F
lashes rapidly
*Note: After 4 minutes, if CO
le
vels drop below alarm levels,
t
he unit will remain silent and
return to normal operation. If CO
pr
esent still indicates a potentially
d
angerous situation, the horn will
sound again.
IF THE CO LEVELS RETURN
T
O NORMAL:
HORN:
Silent
D
ISPLAY:
D
ash lit by “READY”
(CO5120PDBN)
P
OWER/ALARM LIGHT:
Sh
ines continuously
SMART INTERCONNECT FEATURE
This CO Alarm includes “Smart Interconnect” which enables the Alarm to be
interconnected with other BRK Smoke and CO Alarms. When interconnected
t
o Smoke Alarms that go into alarm, this CO Alarm will sound the smoke horn
pattern.
USING THE PEAK CO MEMORY (CO5120PDBN)
T
he CO Memory Feature lets you check the highest level of CO recorded
d
uring an alarm.
To check CO Memory:
1. Press and release the Test/Silence/Scroll button until the dash scrolls
t
o “MEMORY”.
2. Press and hold Test/Silence/Scroll button to display Memory CO level.
T
o clear CO Memory:
1
. Press and release the Test/Silence/Scroll button until the dash scrolls to
“
CLEAR MEMORY.”
2
. Press and hold the Test/Silence/Scroll button until the display shows “CLr.”
N
OTE:
T
he highest CO level will be saved, even after a power interruption, until
y
ou clear it
. DO NOT clear the CO Memory reading if you plan to call someone
t
o i
nvestigate a CO problem! Clear the CO Memory reading only after the
i
nvestigator has checked your home.
INSTALLATION, continued
SYMPTOMS OF CO POISONING
T
hese symptoms are related to CO POISONING and should be discussed with
ALL household members.
Mild Exposure: Slight headache, nausea, vomiting, fatigue (“flu-like” symptoms).
M
edium Exposure:
T
hrobbing headache, drowsiness, confusion, fast heart rate.
Ex
treme Exposure:
Con
vulsions, unconsciousness, heart and lung failure.
Exposure to Carbon Monoxide can cause brain damage, death.
T
his 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
m
inimum over a long period of time. The CO Alarm generally sounds an alarm
be
fore the onset of symptoms in average, healthy adults.
W
hy is this important? Because you need to be warned of a potential CO
pr
oblem 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
d
isoriented and can no longer react well enough to exit the building or get
hel
p. 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,
pr
egnant 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!
WHAT YOU NEED TO KNOW ABOUT CO
WHAT IS CO?
CO is an invisible, odorless, tasteless gas produced when fossil fuels do not
burn completely, or are exposed to heat (usually fire). Electrical appliances
typically do not produce CO.
These fuels include: Wood, coal, charcoal, oil, natural gas, gasoline, kerosene,
and propane.
Common appliances are often sources of CO. If they are not properly main-
tained, are improperly ventilated, or malfunction, CO levels can rise quickly.
CO is a real danger now that homes are more energy efficient. “Air-tight”
home
s w
it
h ad
d
ed insulation, sealed windows, and other weatherproofing
can
“
t
r
a
p
” CO inside.
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
a
ir movement and cause backdrafting. Never “cap” or cover a chimney
in any way that would block air flow.
•
Test and maintain all fuel-burning equipment annually. Many local gas or
o
il companies and HVAC companies offer appliance inspections for a
nominal fee.
•
Make regular visual inspections of all fuel-burning appliances. Check
a
ppliances for excessive rust and scaling. Also check the flame on the
burner and pilot lights. The flame should be blue. A yellow flame means
f
uel is not being burned completely and CO may be present. Keep the
b
lower door on the furnace closed. Use vents or fans when they are
available on all fuel-burning appliances. Make sure appliances are vented
t
o the outside. Do not use grills or barbecue indoors, or in garages or on
scr
een porches.
• Check for exhaust backflow from CO sources. Check the draft hood on
a
n operating furnace for a backdraft. Look for cracks on furnace heat
e
xchangers.
• Check the house or garage on the other side of shared wall.
•
Keep windows and doors open slightly. If you suspect that CO is escaping
into your home, open a window or a door. Opening windows and doors
can significantly decrease CO levels.
WITH BATTERY BACK-UP
Model CO5120BN
WITH BATTERY BACK-UP
AN
D DIGITAL DISPLAY
M
odel CO5120PDBN
1
.
Test/Silence Button
Scr
oll Button (CO5120PDBN)
2. POWER/ALARM Light (RED)
3. Air Vents
4
.
(Be
h
i
nd t
he Co
v
e
r)
Alarm H
orn:
85 dB a
ud
i
b
le alarm for test,
alarm, and unit malfunction
w
arn
ing.
5. Digital Display (CO5120PDBN)
F
or y
our records,
pleas
e record:
D
a
te Purchased: _______________Where Purchased: __________________
Date Installed: ____________/____________Month/Year
R
epl
a
cemen
t date is five years after installation:
_____________/____________Month/Year
NOTE: End of Life Signal — Once the unit reaches the end of its lifecycle,
the M
A
L
F
U
N
C
T
I
ON SIGNAL will sound once a minute to indicate the need
to immediately replace the Alarm.