BRK electronic CO5120PDB User Manual
MODEL CO5120PDB—USER’S MANUAL
AC POWERED CARBON MONOXIDE ALARM
WITH BATTERY BACK-UP AND
DIGITAL DISPLAY
M06-1060-000 08/01
PLEASE READ CAREFULLY AND SAVE:
This unit was shipped with a user’s manual
that contains important information about its
operation. If you are installing this unit for use
by others, you must leave this manual—
or a copy of it—with the user.
Model
CO5120PDB
120VAC 60 Hz 0.09A
FEATURES
This CO Alarm is designed to be hard-wired and
mounted on any standard size junction box, up to 4”
size. 120V AC power to the junction box must not be
controlled by a dimmer or switch (other than a circuit
breaker.)
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).
General features: This Alarm features a permanently
installed sensor, a red indicator light (LED), and an
85 dB alarm horn.
9V Battery Back-Up. If AC power is interrupted,
the CO Alarm will continue to operate for a short
time, provided the 9V battery is fresh and correctly
installed.
Silence Feature. The Silence feature temporarily
quiets the alarm.
Low Battery Silence Feature. Temporarily silences
the Low Battery Warning “chirp” for up to 8 hours if
AC power is present.
Digital Display. Shows levels of CO, measured in
parts per million present and any stored peak levels.
Malfunction Warning. This unit performs
self-diagnostic tests approximately every second.
If the alarm malfunctions, it should be replaced
immediately.
CHAPTER 1: INTRODUCTION
BASIC SAFETY INFORMATION
Dangers, Warnings, and Cautions alert you to important operating instructions or to potentially hazardous
situations. Pay special attention to these items.
THIS IS NOT A SMOKE ALARM! This CO Alarm is
designed to detect carbon monoxide from ANY
source of combustion. It is NOT designed to
detect smoke, fire, or any other gas.
This CO Alarm is approved for use in single-family
residences. It is NOT designed for marine or RV use.
This CO Alarm will only indicate the presence of
carbon monoxide gas at the sensor. Carbon
monoxide gas may be present in other areas.
The Silence Feature is for your convenience only
and will not correct a CO problem. Always check
your home for a potential problem after any alarm.
Failure to do so can result in injury or death.
This unit does not work without power. If the AC
power fails, the battery back-up will power the
alarm for at least 20 hours provided the 9V battery
is fresh and correctly installed.
TABLE OF CONTENTS
Chapter 1: Introduction . . . . . . . . . . .Inside Cover
Basic Safety Information . . . . . . . . .Inside Cover
How Your CO Alarm Works . . . . . . . . . . . . . . . .1
Understanding Your CO Alarm . . . . . . . . . . . . .2
Using the CO Memory . . . . . . . . . . . . . . . . . . .4
CO Alarm Specifications . . . . . . . . . . . . . . . . . .5
Chapter 2: Installation . . . . . . . . . . . . . . . . . . . . . .6
Where to Install CO Alarms . . . . . . . . . . . . . . . .6
Where NOT To Install CO Alarms . . . . . . . . . . . .7
Using the Locking Features . . . . . . . . . . . . . . . .8
How to Install Your CO Alarm . . . . . . . . . . . . .11
Chapter 3: If Your CO Alarm Sounds . . . . . . . . .17
If the Alarm Sounds . . . . . . . . . . . . . . . . . . . . .17
Using the Silence Feature . . . . . . . . . . . . . . . .18
Finding the Source of CO After an Alarm . . . . .19
The Latching Alarm Indicator . . . . . . . . . . . . . .19
Chapter 4: Testing and Maintenance . . . . . . . . .20
Chapter 5: What You Need To Know About CO .21
What is CO? . . . . . . . . . . . . . . . . . . . . . . . . . .21
Symptoms of CO Poisoning . . . . . . . . . . . . . .21
Finding the Source of CO After an Alarm . . . . .21
Potential Sources Of CO In The Home . . . . . .22
How Can I Protect My Family? . . . . . . . . . . . .23
Chapter 6: Underwriters Laboratories, Inc.
UL2034 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
Chapter 7: Troubleshooting Guide . . . . . . . . . . .25
Chapter 8: General Limitations
Of CO/Smoke Alarms . . . . . . . . . . . . . . . . . . . . .26
Limited Warranty . . . . . . . . . . . . . . . . . . . . . . . . .27
1
Basic safety information (continued)...
NEVER ignore any alarm. Refer to Chapter 3 for
more information on how to respond to an alarm.
Failure to respond can result in injury or death.
Test this Carbon Monoxide Alarm once a week. If
it ever fails to test correctly, have it replaced
immediately! If the alarm is not working properly, it
cannot alert you to a problem.
Do not paint over the CO Alarm. Paint may clog
the openings to the sensing chamber and prevent
the sensors from operating properly.
This product is intended for use in ordinary indoor
locations of family living units. It is not designed to
measure CO levels in compliance with
Occupational Safety and Health Administration
(OSHA) commercial or industrial standards.
Individuals with medical conditions may consider
using warning devices which provide audible and
visual signals for carbon monoxide concentrations
under 30 ppm.
Disconnect AC power before changing battery.
Shock hazard exists if AC power is miswired.
HOW YOUR CO ALARM WORKS
THE COVER OF YOUR CO ALARM
1. Test/Silence/Scroll Button: Press and
release to select mode (Test, Memory,
Clear Memory); Press and hold to activate
mode, or to silence the alarm.
2. POWER/ALARM Light (RED)
3. Air Vents
4. (Behind the Cover) Alarm Horn: 85db
audible alarm for test, alarm, and unit
malfunction warning.
5. Digital Display
2
1
5
3
4
2
BASIC POWER CONDITIONS
Alarm
operating on
AC power
Alarm
operating on
emergency
battery back-up
Low / missing
battery warning
WHAT YOU SEE AND HEAR DURING INSTALLATION
Under normal conditions (AC power)
When you test the CO Alarm
Horn Silent
Display Dash remains lit
at “READY”
POWER/ Shines
ALARM Light continuously
Horn Sounds loudly -
4 beeps, pause,
4 beeps, pause
Display Flashes “888”
briefly
POWER/ Flashes once
ALARM Light per second
WHAT YOU SEE AND HEAR UNDER
DIFFERENT CONDITIONS
During a power failure (in battery back-up)
Horn Chirps briefly
Display The word “bat”
is displayed
POWER/ Flashes once a
ALARM Light minute
When the electricity comes back on
Horn Chirps briefly
Display Dash appears by
“READY” within
a minute
POWER/ Shines
ALARM Light Continuously
UNDERSTANDING YOUR CO ALARM
Continued...
3
If battery becomes low or is missing
*Note: If the battery becomes very weak, you will
hear extra “chirps.” Replace the battery immediately!
Disconnect AC power before changing battery.
Shock hazard exists if AC power is miswired.
If the CO alarm is not operating properly
Horn Three rapid chirps
every minute
Display Displays “Err”
POWER/ Flashes three
ALARM Light times in sync with
the horn
Horn Chirps once
a minute*
Display The word “bat”
flashes on and off
POWER/ Flashes once a
ALARM Light
minute
What You See and Hear Under Different
Conditions (continued)...
WHAT YOU SEE AND HEAR IF CO IS DETECTED
Pre-Alarm Levels
Horn Silent
Display Shows CO levels
detected in ppm
POWER/ Shines
ALARM Light continuously
Alarm levels of CO are detected (Over 70 ppm)
Horn Sounds loudly -
4 beeps, pause,
4 beeps, pause.
This sequence
repeats for as
long as the unit
is in alarm*
Display Shows CO levels
detected in ppm
POWER/ Flashes once
ALARM Light per second
*Note: If unit goes into alarm under battery back-up
power, the regular 4 beeps-brief pause cycle will
repeat for four minutes. After four minutes, the pause
will increase to 1 minute.
Continued)...
4
If you silence the alarm
Horn Silent for about
4 minutes*
Display Shows CO levels
detected in ppm
POWER/ Flashes once
ALARM Light per second
*Note: After 4 minutes, if CO levels drop below alarm
levels, the unit will remain silent and return to normal
operation. If CO present still indicates a potentially
dangerous situation, the horn will sound again. If CO
levels increase during the silence period, the horn will
resume sounding.
If alarm levels of CO are detected by an
interconnected (remote) alarm
Horn Sounds loudly -
4 beeps, pause,
4 beeps, pause.
This sequence
repeats for as
l
ong as the remote
unit is in alarm*
Display Dash remains lit
at “READY”
POWER/ Shines
ALARM Light continuously
USING THE CO MEMORY
The CO Memory Feature lets you check
the highest level of CO recorded.
To check CO Memory:
1. Press and release the
Test/Silence/Scroll button until
dash scrolls to “MEMORY.”
2. Press and hold Test/Silence/Scroll
button to display Memory CO level.
To 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.”
NOTE: The highest CO level will be
saved, even after a power interruption,
until you clear it. DO NOT clear the CO
Memory reading if you plan to call
someone to investigate a CO problem!
Clear the CO Memory reading only
after the investigator has checked your home.
What You See and Hear If CO Is Detected
(continued)...
The “Latching Alarm” Indicator
Horn Silent
Display Dash remains lit
at “READY”
POWER/
Flashes once every
ALARM Light
5 sec., on initiating
unit in an interconnected series
5
Gas Detection at Typical Temperature and
Humidity Ranges: The CO Alarm is not formulated to
detect CO levels below 30 ppm typically. UL tested
for false alarm resistance to Methane (500 ppm),
Butane (300 ppm), Heptane (500 ppm), Ethyl Acetate
(200 ppm), Isopropyl Alcohol (200 ppm) and Carbon
Dioxide (5000 ppm). Values measure gas and vapor
concentrations in parts per million.
Required Alarm Levels: Before 10% COHb exposure
at levels of 30% to 70% Relative Humidity (RH):
• 400 ppm CO between 4 and 15 minutes
• 150 ppm CO between 10 and 50 minutes
• 70 ppm CO between 60 and 240 minutes
When exposed to a constant level of 30 ppm of CO,
this CO Alarm was tested not to go into alarm for at
least 30 days.
Audible Alarm: 85dB minimum at 10 feet.
Power: Powered by 120VAC. The 9V battery back-up
provides 8 hours of standby and sounds alarm for 12
hours with fresh battery. When AC power is on, red
light (LED) shines continuously. Under battery power,
red light flashes once a minute.
Malfunction: Horn chirps and light blinks 3 times (in
rapid succession) every minute and digital display
shows “Err”.
Dimensions: 5.4” diameter (approx.)
Supply Voltage: 120VAC 60Hz, 0.09A.
During Alarm: Repeating alarm horn pattern:
4 beeps, pause, 4 beeps, pause.
• Stand-alone unit: red light (LED) flashes once
per second.
• Interconnected series: red light (LED) flashes
once per second on the Initiating alarm. The
red light (LED) on all other alarms will shine
continuously.
Warranty: 5-year limited warranty.
Standards: Underwriters Laboratories Inc. Single and
Multiple Station carbon monoxide alarms UL2034.
According to Underwriters Laboratories Inc. UL2034,
Section 1-1.2: “Carbon monoxide alarms covered by
these requirements are intended to respond to the
presence of carbon monoxide from sources such as,
but not limited to, exhaust from internal-combustion
engines, abnormal operation of fuel-fired appliances,
and fireplaces. CO alarms are intended to alarm at
carbon monoxide levels below those that could cause
a loss of ability to react to the dangers of Carbon
Monoxide exposure.” This CO Alarm monitors the air,
and is designed to alarm before CO levels become life
threatening. This allows you precious time to leave the
house and correct the problem. This is only possible if
alarms are located, installed, and maintained as
described in this manual.
CO ALARM SPECIFICATIONS
6
CHAPTER 2: INSTALLATION
WHERE TO INSTALL CO ALARMS
The National Fire Protection Association (NFPA) recommends that a CO Alarm should be centrally located outside of each separate sleeping area in the
immediate vicinity of the bedrooms. For added protection, install additional CO Alarms in each separate
bedroom, and on every level of your home.
If your bedroom hallway is longer than 40 feet, install
a CO Alarm at BOTH ends of the hallway.
IN A SINGLE-LEVEL HOME:
• Install at least one CO Alarm near or within each
separate sleeping area.
• For added protection, install an additional CO
Alarm at least 20 feet (6 meters), where possible*,
away from the furnace or fuel burning heat source.
IN A MULTI-LEVEL HOME:
• Install at least one CO Alarm near or within each
separate sleeping area.
• For added protection, install at least one CO
Alarm on each level of the home. 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), where possible*, away from the furnace or fuel burning
heat source.
(*)In smaller homes or in manufactured homes and
RV’s where this distance cannot be maintained, install
the Alarm as far away from the furnace or other fuel
burning source. Installing the Alarm closer than 20
feet (6 meters) will not harm the Alarm, but may
increase the frequency of nuisance alarms.
This Alarm must have AC or battery power to
operate. If the AC power fails, the battery back-up
will power the Alarm for a short time if the 9V
battery is fresh and correctly installed. If AC power
fails, and the battery is dead or missing, the Alarm
cannot operate.
BEDROOM
LIVING ROOM
HALL
BEDROOM
KITCHEN
BEDROOM
GARAGE
BASEMENT
REQUIRED TO MEET NFPA RECOMMENDATIONS
SUGGESTED AREAS FOR INSTALLING ADDITIONAL CO ALARMS
7
WHERE NOT TO INSTALL THIS ALARM
DO NOT locate this CO Alarm:
• In garages, kitchens, furnace rooms, crawl spaces
and unfinished attics. Avoid extremely dusty, dirty
or greasy areas.
• The CO Alarm should be at least 5 feet (2 meters),
preferably 20 feet (6 meters) from sources of
combustion particles such as stoves, furnaces,
and vehicles.
• Avoid poorly ventilated kitchens, garages, and
furnace rooms.
• In extremely humid areas. This alarm should be at
least 10 feet (3 meters) from a shower, sauna,
humidifier, vaporizer, dishwasher, laundry room,
utility room, or other source of high humidity.
• Where the temperatures are regularly below 40˚ F
(4˚C) or above 100˚ F (38˚ C) including unheated
buildings, outdoor rooms, porches, or unfinished
attics or basements. Extreme temperatures may
shorten component or battery life.
• In turbulent air, like near ceiling fans or open windows. Blowing air may prevent CO from reaching
the sensors.
• In direct sunlight.
This CO Alarm is designed for use inside a singlefamily 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, specialpurpose 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.
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