Red:
Indicates an alarm condition, and that there is a
dangerous level of carbon monoxide present. Refer
to Section K.
damaged or cracked heat exchangers
2. Collapsed or blocked chimneys or flues, dislodged,
disconnected or damaged vents
3. Downdraft in chimneys or flues; this can also be caused by
very long or circuitous flue runs, improper location of flue
exhaust or wind conditions
4. Improper installation or operation of equipment, chimneys
or vents
5. Air tightness of house envelope results in a lack of air for
the combustion process
6. Inadequate exhaust of space heaters or appliances
7. Exhaust ventilation/fireplace competing for air supply
• Do not install or place
the alarm
- In locations where
the normal ambient
temperature is
below 40°F (4.4°C) or
exceeds 100°F
(37.8°C)
humidity may reduce the battery life.
For gas-fired equipment, mostly yellow (rather than clear
blue) burner flames, a pilot light that keeps going out, or a
smell of gas indicate trouble. Turn off the equipment and
contact your gas company emergency service.
WARNING:
This device may not alarm at low carbon monoxide levels. This detector
has not been investigated for carbon monoxide detection below 30 ppm.
• This carbon monoxide alarm will not operate with a dead
or missing battery or if the battery door is open or not
closed completely.
• Do not remove the battery to use in any toys, remote
controls or other household devices.
• Do not try to open the alarm except for the battery door.
Opening the main housing of the alarm may damage the
unit and will void the warranty:
Recommended Battery: Use only Duracell MN1604/
MX1604, Gold Peak GP1604A or Energizer X22 (available
at most general retail stores).
M. Limited Warranty
• It will flash quickly 4 times (synchronized with
the horn), repeating every 5 seconds, for the
first 4 minutes.
Your American Sensors carbon monoxide is warranted for
six (6) years from the date of purchase against defect in
material and workmanship. Units returned to Dicon
Global Inc. with proof of purchase date during this period
as a result of such defects will be repaired, or replaced at
Dicon Global Inc.’s option. This warranty only covers
defects in material or workmanship in normal residential
use. This warranty does not cover damage resulting from
negligent handling, misuse, or lack of reasonable care. This
warranty is in lieu of any other warranty either expressed
or implied.
Additional Safety Tips
Have your fuel-burning equipment checked periodically for
safety and efficiency by a qualified service technician.
Warning: This carbon monoxide alarm is designed to
detect carbon monoxide gas from ANY source of
combustion. It is Not designed to detect smoke, fire or
any other gases. This device is not suitable for
installation in a hazardous location, as defined in the
Canadian Electrical Code.
• After 4 minutes it will flash quickly 4 times
(synchronized with the horn), repeating every
minute.
If you are adding a wood or coal burning stove to a home,
make sure that the stove is properly installed and vented.
Check with the Building and Inspections Department of
your local municipality or consult a heating contractor
before installation. If you have already installed a wood or
coal stove without a building permit or inspection, consult
your local municipal building authority. Some “do-it-your-
selfers” have unknowingly created dangerous conditions.
Once you file for a permit, a qualified inspector will check
your installation and explain how to rectify any mistakes.
Do not expose yourself to carbon monoxide through
carelessness. Never operate a gasoline-powered engine in a
confined or enclosed space such as a garage or tool shed.
Never use a kerosene stove or charcoal grill in a confined
space such as a closed garage or recreational van.
On masonry chimneys inspect the clean-out regularly to
ensure that the chimney is free and clear of debris.
Regardless of the fuel your furnace, fireplace or stove uses,
your chimney should be inspected from time to time by a
competent chimney contractor.
Never try to add a “heat reclaimer” or “automatic flue
damper” to your gas furnace or water heater. Gas
installation safety codes prohibit use of these devices as an
add-on to an existing furnace because of the risks of
incorrect installation and mechanical failure.
When using paints, household cleaning supplies or similar
materials, be sure that you’re using them in a well
ventilated area.
- Within 5 ft. (1.5 m)
of any cooking appliance
Yellow: Indicates malfunction or “End of Product Life”.
Refer to Section H.
- In damp or very humid areas or next to bathrooms with
showers. Install detectors at least 5 ft. (1.5m) away from
bathrooms.
- In close proximity to an automobile exhaust pipe; this
will damage the alarm.
• Accommodation spaces should be well ventilated when
household cleaning supplies or a similar contaminant are
used.
• It will flash once per minute synchronized with
the horn to indicate a malfunction.
WARNING:
Battery Installation Instructions
1. If the alarm is wall mounted, remove it from the wall
by gently sliding it
upwards to lift it off
the key hole
slots.
2. Slide the
battery door out.
3. Connect fresh
battery to
batterysnap.
Replace the battery
compartment door.
4. Test the unit by
This product is intended for use in ordinary indoor locations of family
living units. It is not designed to measure compliance with Occupational
Safety and Health Administration (OSHA) commercial and industrial
standards. Individuals with medical problems may consider using warning
devices which provide audible and visual signals for carbon monoxide
concentrations under 30 ppm.
This device is designed to protect individuals from the acute effects of
carbon monoxide exposure. It will not fully safeguard the individuals with
specific medical conditions. If in doubt, consult a medical practitioner.
• The “End of Product Life” signal is the same as
malfunction except that in addition to the above,
the GREEN LED will flash twice per minute.
D. Potential sources of carbon monoxide in
your home:
DICON GLOBAL INC. SHALL HAVE NO LIABILITY
FOR ANY PERSONAL INJURY OR PROPERTY
DAMAGE, OR ANY SPECIAL INCIDENTAL,
CONTINGENT OR CONSEQUENTIAL DAMAGE OF
ANY KIND RESULTING FROM CARBON
HORN:
The horn generates 3 different patterns.
Slide battery
door out.
G. How should you install the alarm?
Your American Sensors Carbon Monoxide Alarm is easy to
install to protect you and your family in your home, cottage,
cabin and office.
MONOXIDE. THE EXCLUSIVE REMEDY FOR
BREACH OF THE LIMITED WARRANTY
4 beeps: Indicates an alarm condition, and that there is a
dangerous level of carbon monoxide present.
Refer to Section E.
CONTAINED HEREIN IS THE REPAIR OR
REPLACEMENT OF THE DEFECTIVE PRODUCT AT
DICON GLOBAL INC.’S OPTION. IN NO CASE
SHALL DICON GLOBAL INC.’S LIABILITY UNDER
ANY OTHER REMEDY PRESCRIBED BY LAW
EXCEED THE PURCHASE PRICE. YOUR CARBON
MONOXIDE ALARM IS NOT A SUBSTITUTE FOR
PROPERTY, DISABILITY, LIFE OR OTHER
INSURANCE OF ANY KIND. APPROPRIATE
COVERAGE IS YOUR RESPONSIBILITY. CONSULT
YOUR INSURANCE AGENT.
Wood or Gas Fireplace
Clogged Chimney
Wood Stove
Caution:
• It will beep quickly 4 times (synchronized with
the Red LED), repeating every 5 seconds, for
the first 4 minutes.
Your unit is constantly monitoring the air and will go into full
alarm if ongoing, hazardous levels of CO are detected. Follow
the instructions in section K if the full alarm sounds.
To work properly, the alarm unit must not be blocked by
furniture or draperies.
• After 4 minutes it will beep quickly 4 times
(synchronized with the Red LED), repeating
every minute.
To provide maximum protection please allow up to 72 hours
for your CO alarm to fully initialize. It will, however,
immediately warn you of dangerous CO levels if they are
present in your home.
pressing the Test/Reset button as per Section H to confirm
the unit is powered.
5. Return the alarm to its original location.
WARNING: This device will only alarm if carbon
monoxide is detected. If not responded to, the presence
of carbon monoxide can be fatal. For list of sources of
carbon monoxide, see Sections C and D.
Gas Appliances
Gas Water Heater
Automobile and Garage
2 beeps: Indicates the battery is low. Refer to Section J.
• It will beep quickly 2 times, repeating every
minute.
This unit may be used as a table top or desk top model.
Simply place the unit on its base in a location suggested in
Section F. Alternatively, to mount this model on a wall follow
the instruction on the wall mount template included with the
alarm.
K. What should you do if the ALARM sounds?
1 beep: Indicates malfunction or “End of Product Life”.
Refer to Section H.
This warranty gives you specific legal rights and you may
have other rights which may vary from province to
province.
CAUTION: This alarm will only indicate the presence
of carbon monoxide at the sensor. Carbon monoxide may
be present in other areas.
If potentially harmful levels of carbon
monoxide are detected, your unit will go into
full alarm. The alarm signal consists of 4
rapid beeps repeating every 5 seconds, with
the red LED light flashing every time the alarm
horn beeps.
Following sensible maintenance and safety procedures in
the home will give you fuel savings without endangering
your health.
• It will produce a single beep, repeating every
minute.
Cigarette Smoke
Gas or Kerosene Heater
Gas or Oil Furnace
Return to point of purchase for servicing. For repair or
replacement within the warranty period, return this
product (or send it postage prepaid) along with proof of
purchase date to Dicon Global Inc. Please enclose a note
stating the nature of the difficulty. Prior to sending, please
call 1-800-387-4219 to establish a Returned Goods
Authorization (“RGA”) number and the latest instructions
to serve you promptly. Please mark this number on the
exterior of your package and send to:
Important: Before installing this unit, select a
location per Section F and connect the battery as per
Section J.
Conditions That Can Result In Transient CO Situations:
LCD:
WARNING
a) Excessive spillage or reverse venting of fuel burning
appliances caused by:
The LCD display displays 4 pieces of information, pressing the
“Display” button allows you to toggle between screens.
Installation of this CO alarm should not be used as a
substitute for proper installation, use, and maintenance of
fuel burning appliances, including appropriate ventilation
and exhaust systems.
O. COMMONLY ASKED QUESTIONS
Outdoor ambient conditions, such as wind
direction and/or velocity, including high gusts of
wind and insufficient draft in the vent pipes;
H. How can you Test/Reset the alarm?
A green power light indicates that power is supplied. For
the display model CO8B-D, the display will show “000”.
To test the alarm (wait at least ten minutes after installing
it), press and release the Test/Reset button. The alarm will
sound two series of 4
If the full alarm sounds respond as follows:
Q.
A.
What does the alarm sound like?
PPM:
A series of 4 short beeps (loud 85 db sound) with
synchronized red LED flashing.
This is the default display value. It shows the CO
concentration that the unit is sensing. The lowest value that
the unit will show is 30 ppm.
Negative pressure differential resulting from the
use of exhaust fans;
i) ! WARNING
Getting Started
Step 1
Dicon Global Inc.
20 Steelcase Road West, Unit 3
Markham, Ontario, Canada L3R 1B2
Q.
A.
Should I position the unit in a high or low location?
Simultaneous operation of several fuel-burning
appliances competing for limited internal air;
Actuation of your CO alarm indicates
the presence of carbon monoxide
(CO) which can KILL YOU. If alarm
signal sounds (series of 4 beeps, red
LED flashing):
Carbon monoxide is virtually the same weight as air
and therefore, the alarm protects you in a high or low
location.
Determine the best location for your CO alarm(s). Usually
this is in or near bedrooms. Your alarm can be used in a desk
top or a wallmount (using the screws and anchors provided)
configuration. Refer to Section F.
short beeps and the
red LED will flash.
PEAK:
Test/Reset
button
Loose vent pipe connections from fuel-fired
appliances;
This is the highest CO concentration (in ppm) that the unit
has sensed in the last 12 hours.
To reset after an
Q.
A.
Will this unit detect smoke and fire?
N. Tips for the homeowner
Energy Conservation and Indoor Air Quality
Two steps that homeowners take to conserve energy may
adversely affect indoor air quality.
Since air leakage can account for as much as 40% of heat
loss, houses are being made more air tight. Reduced air
leakage will contribute to higher concentrations of air
contaminant's from indoor sources and can cause draft
reversal in the furnace or fireplace chimney when the
demand for air by fireplaces, furnaces and exhaust fans
exceeds the air supplied by leakage area and supply ducts.
Converting from oil to gas, without taking steps to prevent
chimney deterioration, will increase the risk of chimney
blockage, draft failure and the associated release of
alarm, press the
Obstructions, or unconventional vent pipe designs
that can amplify the above situations;
No, a carbon monoxide alarm only detects carbon
monoxide. Smoke alarms are still necessary.
Step 2
Test/Reset button to
COHB:
silence or reset the
Connect the battery of your CO alarm and install the alarm.
Refer to Section J.
Poorly designed or maintained chimneys, and or
vents.
1. Immediately move to fresh air -
outdoors or by an open door or
window. Check if all persons are
accounted for. Do not re-enter the
premises or move away from the
open door/window until the
Q.
A.
How do I test the unit?
unit. Follow the
This approximates your exposure to carbon monoxide (see
Section E).
instructions in Section K, which tell you what to do after
an alarm. This Carbon Monoxide Alarm is designed to do
a continuous self-diagnostic check of its micro processing
circuitry when in use.
Push the Test/Reset button. Refer to Section H. Do
not test with car or vehicle exhaust. This method is
dangerous to you and the pollutants from car or
vehicle exhaust may damage the alarm.
IMPORTANT: American Sensors CO alarms CO8 and
CO8B-D have been designed to operate for 6 years. A
replacement date label has been placed on the device. On
the replacement date label write the month and the year,
corresponding to 6 years/72 months from the installation
date. Under no circumstances should the alarm be used
beyond 6 years from installation. The alarm may no longer
detect CO accurately and should be immediately replaced.
See Section H for the “End of Product Life “ signal.
b) Extended operation of unvented fuel-burning appliances
(range, oven, fireplace, etc.).
LOW BATTERY:
c) Temperature inversions that can trap exhaust near the
ground.
If your alarm has a low battery, the low battery icon will be
displayed.
A malfunctioning unit is indicated by a short single beep
and flashing yellow LED every 60 seconds. If this occurs,
reset the unit. If the unit again beeps intermittently, do
not use this unit.
The “End of Product Life” signal is similar to the
malfunction signal. The only difference is that the green
LED will flash twice along with the beep and the yellow
LED flash every 60 seconds.
d) Car idling in an open or closed attached garage, or near a
home.
emergency responders have
arrived, the premises have been
aired out, and your alarm remains
in its normal condition.
NO BATTERY INDICATOR:
The battery out indicator is located on the front of the alarm.
It displays “NO BATTERY” when the battery has been
removed.
E. What are the possible symptoms of carbon
monoxide poisoning?
Step 3
combustion products into the house. Qualified contractors
and inspection by the gas company are recommended.
When the battery is connected, the CO alarm will go
through a test sequence (the horn will beep 4 times, followed
by 5 seconds of silence, followed by 4 more beeps - this is the
alarm pattern that you will hear in the event of an
emergency). Additionally the red LED will flash with each
beep and this will be followed by one flash of both green and
yellow LEDs. Finally the LCD display (where equipped) will
turn on. If you press the test button this sequence will repeat
itself. Refer to Section H.
Carbon monoxide (CO) is odourless, colourless, tasteless and
very toxic. When inhaled, it produces an effect known as
chemical asphyxiation. Injury is due to the combining of CO
with the available hemoglobin in the blood, which lowers the
oxygen-carrying capacity of the blood. In the presence of
carbon monoxide, the body is quickly affected by oxygen
starvation.
The following symptoms are related to carbon monoxide
poisoning and should be discussed with all members of the
household so that you know what to look for:
For questions about your CO alarm, please contact:
2. Call your emergency services
Dirt and Blockage
B. What is carbon monoxide and why should
you be concerned?
Carbon monoxide is a dangerous, poisonous gas. It is often
referred to as the Silent Killer because it has no odour or taste
and it can’t be seen. The presence of carbon monoxide inhibits
the blood’s capacity to transport oxygen throughout the body,
which can eventually lead to brain damage.
In any enclosed space (home, office, recreational vehicle or
boat) even a small accumulation of carbon monoxide can be
dangerous.
1-800-387-4219
Never insulate or try to seal up a draft hood, wind cap or
exhaust vent on any gas appliance (furnace, hot water
heater, range, dryer or space heater). Keep your equipment
area clean. Don’t store anything that could restrict air
circulation close to equipment.
It is absolutely essential to your safety that panels and grills
on the furnace are kept in place and that the fan
compartment door is closed when the furnace is operating.
If you have a gas water heater, make sure that combustion
air openings at the bottom of the tank and the opening
below the draft diverter (on top of the tank next to the
flue duct) remain unblocked.
If you have a gas dryer, the exhaust duct must be vented to
the outside and have a hood at the end. Check that the
exhaust system is not blocked by lint or debris and that the
flapper in the hood moves freely.
(
), [fire
department or 911];
I. How can you maintain your alarm?
An alarm is useful
only if it works. The
following illustration
explains proper
maintenance:
ii) If malfunction/”service” signal
sounds (one beep and yellow LED
flashing every minute) return the
alarm to the point of purchase.
Test/Reset button
Test the alarm
by pressing the
Test/Reset button
once a week.
Step 4
While testing the CO alarm, have someone else check that
the alarm can be heard easily from the sleeping areas, Refer
to Section H.
Extreme Exposure (more than 40% COHb):
Unconsciousness, brain damage, death
Medium Exposure (15% to 40% COHb): Dizziness,
drowsiness, vomiting
Mild Exposure (less than 15% COHb): Headaches,
running nose, sore eyes, often described as “flu-like”
symptoms
What to do after resetting the alarm following an alarm?
A full continuous alarm within six minutes after reset
confirms ongoing presence of harmful levels of carbon
monoxide. If this occurs follow instructions 1 - 2 above.
What to do after a carbon monoxide problem has been
corrected?
After a carbon monoxide problem has been corrected
reset your alarm by pushing the Test/Reset button as per
the instructions on Section H.
Your alarm should be
tested at least once
per week by pushing
the Test/Reset button
as outlined in Section
H.
C. What are the potential sources of carbon
monoxide?
Although many products of combustion can cause discomfort
and adverse health effects, it is carbon monoxide (CO) that
presents the greatest threat to life.
A. Indicators
Your carbon monoxide alarm displays information from four
sources:
LCD Display
Many cases of reported carbon monoxide poisoning indicate
that while victims are aware they are not well, they become so
disoriented then are unable to save themselves by either
exiting the building or calling for assistance.
Young children and household pets may be the first affected.
Exposure during sleep is particularly dangerous because the
victim usually does not awaken.
For most people, mild symptoms generally will be felt after
several hours of exposure to 100 ppm of carbon monoxide.
Higher levels will lead to more severe symptoms or death.
(only on CO8B-D)
C
MONOXIDE
AALARBROMN
For all fuel-burning equipment, make sure that vent hoods
and pipes are not blocked by insulation, leaves or bird
nests.
Test/Reset
Button
CO is produced by the incomplete combustion of fuels such as
natural gas, propane, heating oil, kerosene, coal, charcoal,
gasoline or wood. The incomplete combustion of fuel can occur
in any device that depends on burning for energy or heat such
as furnaces, boilers, room heaters, hot water heaters, stoves or
grills and in any gasoline-powered vehicle or engine (e.g.,
generator set or lawnmower). Tobacco smoke also adds CO to
the air you breathe.
When properly installed and maintained, your natural gas
furnace and hot water heater do not pollute your air space with
carbon monoxide. Natural gas is known as a “clean burning”
fuel because under correct operating conditions the combustion
products are water vapour and carbon dioxide, which are not
toxic. (Carbon dioxide (CO2) is also present in the air we
exhale and is necessary for plant life.) The products of
combustion are vented from furnaces and water heaters to the
outside by means of a flue duct or chimney.
1. The 3 LED indicator
Air vent - on bottom of unit
Vacuum the air vent occasionally to keep
free of dust
lights.
Display
Button
toggles the
LCD display
between
ppm, peak &
COHB (only
on CO8B-D)
Battery Out
Indicator
L. Technical Information
2. The loud 85dB horn.
Using other equipment that consumes or exhausts
household air
If you use exhaust fans, a fireplace or other fuel burning
heaters or stoves:
Run exhaust fans for just a minute or two at a time.
Prolonged use could remove too much air, and it wastes
heat.
Do not run power attic vents during the winter or when
your furnace is on.
When your fireplace, coal or wood stove is operating, open
a window and close off warm air registers in the room or
install a fresh air duct directly to the fireplace or stove so
that it won’t steal air from your furnace.
3. The LCD display
(where equipped).
Your alarm utilizes a proprietary Electronic Sensing
Technology that permits the unit to vary the exposure
time before the alarm sounds based on carbon monoxide
concentrations.
J. Battery Installation & Replacement
Under normal conditions your battery should last about one
year. The green light on the unit will briefly blink about
every 60 seconds if the battery is adequately powering the
unit.
Yellow, Green
& Red LED’s
4. The Battery Out
indicator.
85dB Horn
Exposure Times
The carbon monoxide concentrations and time standards
for the alarms are as follows:
Owner’s Manual
This CO alarm has a low battery warning to warn you that
the battery is running low. This is a double beep
approximately every minute. This low battery warning will
continue for at least 7 days. Replace your battery
immediately if this occurs to ensure ongoing protection.
F. Where should you install the alarm?
Model CO8B
The Full Alarm Activates
Since carbon monoxide moves freely in the air, the suggested
location is in or as near as possible to sleeping areas of the
home. The human body is most vulnerable to the effects of
carbon monoxide during sleeping hours. For maximum
protection, a carbon monoxide alarm should be located outside
primary sleeping areas or on each level of your home. The
diagram suggests ideal locations for alarms in the home. The
electronic sensor detects carbon monoxide, measures the
concentration and sounds a loud alarm before a potentially
harmful level is reached.
LIGHTS:
zBattery Powered Alarm
• Within 60-240 minutes at exposures of 70 ppm
• Within 10-50 minutes at exposures of 150 ppm
• Within 4-15 minutes at exposures of 400 ppm
The indicator lights are three different colours:
Model CO8BD
zBattery Powered Alarm with
LCD Display
Green: Indicates that the unit is receiving power.
• If the alarm is operating on a battery supply,
then this LED will flash once per minute.
Specifications
Power Supply
Battery Replacement
Correct operation of fuel-burning equipment requires two key
conditions. There must be:
• An adequate supply of air for complete combustion
• Proper venting of the products of combustion from the
furnace through the chimney, vent or duct to the outside
Confining or enclosing gas-fired equipment
If you have partitioned off your furnace and water heater,
you may need additional ventilation.
Duracell MN/MX1604, Gold Peak
GP1604A or Energizer X22 ONLY
• If the Green LED is steady off, then it is not
receiving power.
WARNING
• Use recommended batteries only.
• Use of different battery may have a detrimental effect on
the alarms operation
Dimensions
(5.25” x 2.80” x 2.00”)
Danger Signs
IMPORTANT: This manual must be read,
followed and kept for future reference.
• If the product has been in use for more than
six years, as part of the “End of Product Life
Signal”, this LED will flash 2 times every
minute. Refer to Section H.
Normal Operating Conditions:
Operating Temperature 4.4°C to 37.8°C (40°F to 100°F)
Stuffy, stale or smelly air, back drafts and soot from a
fireplace or furnace chimney usually means your home
needs more air for proper combustion and healthy living.
To reduce the likelihood of nuisance tripping of the device’s
alarm circuit and to prevent damaging the sensor:
Typical Carbon Monoxide Problems:
1. Equipment problems, due to defects, poor maintenance,
Relative Humidity
Alarm
30% to 70%
85 dB at 10 ft
(French on reverse/Français au version)
• Constant exposures to high or low temperatures or high
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