WHAT YOU SHOULD KNOW ABOUT CO
Carbon monoxide (CO) is an insidious poison. It is a colorless, odorless, tasteless gas. It is a
cumulative poison. Even low levels of CO have been shown to cause brain and other vital organ
damage in unborn infants with no effect on the mother.
The following symptoms are related to carbon monoxide poisoning and should be discussed with
ALL members of the household:
MILD EXPOSURE
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MEDIUM EXPOSURE
Severe throbbing headache, drowsiness, confusion, fast heart rate.
EXTREME EXPOSURE
Unconsciousness, convulsions, cardiorespiratory failure, death.
Many cases of reported carbon monoxide poisoning indicate that victims are aware they are not
well, but they become so disoriented that they are unable to save themselves by either exiting the
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Your combination alarm is designed to detect the toxic CO fumes that result from incomplete
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What Levels of CO Cause an Alarm?
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alarms must alarm. They are measured in parts per million (ppm) of CO over time (in minutes).
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.
Page 2
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 or
industrial standards. Individuals with medical problems may consider using warning devices which
provide audible and visual warnings for carbon monoxide concentrations under 30 ppm.
IMPORTANT CONSIDERATIONS
YOUR COMBINATION CO AND NATURAL GAS ALARM HAS BEEN DESIGNED WITH A
PRODUCT END-OF-SERVICE LIFE SIGNAL WHICH WILL SOUND AFTER APPROXIMATELY
7 YEARS OF OPERATION FROM INITIAL POWER UP.
NOTE: MANUFACTURER RECOMMENDS REPLACEMENT OF THIS ALARM 7 YEARS AFTER
DATE OF INSTALLATION.
WHAT YOU SHOULD KNOW ABOUT NATURAL GAS
Natural gas is a fossil fuel which consists primarily of methane. This common energy source is
often used for cooking, home heating and water heating. Natural gas is typically supplied through
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it happens rarely, a natural gas leak can sometimes occur inside the home. This can be dangerous
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Natural gas is odorless and colorless. When Mercaptan is added to natural gas as an odorant, it
can then be detected by smell. Although it can vary greatly, the typical level for detection of the gas
by smell is 25% of the lower explosion limit (LEL). People who have a diminished sense of smell
may not be able to rely on this safety mechanism. Therefore, installation of this alarm can be an
important tool to help protect you and your family. This alarm is calibrated to sound before 20%
LEL
Therefore, it is possible that you may smell gas before the alarm is activated. If you are
not sure which gas your home uses, contact your utility company.
Natural gas (methane) is typically supplied through a main utility line connected to your home.
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household.
WHERE THIS CO AND NATURAL GAS ALARM SHOULD BE INSTALLED
•
Install an alarm inside each bedroom where the occupant closes the door while sleeping.
BASIC SAFETY INFORMATION
•
This combination Carbon Monoxide and Natural Gas alarm has separate alarms. This alarm is
not designed to detect smoke, heat or any other gas. Carbon monoxide and natural gas may
be present in other areas. The CO and Natural Gas Alarm will only indicate the presence of CO
or natural gas which reaches the sensor.
•
Do not paint the alarm. Paint may clog the openings to the sensing chambers and prevent the
unit from operating properly.
•
Do not stand too close to the unit when the alarm is sounding. It is loud to wake you in an
emergency. Exposure to the horn at close range may harm your hearing.
Make sure the alarm is not receiving excessively noisy power. Examples of noisy power
could be major appliances on the same circuit, power from a generator or solar power, light
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may cause damage to your alarm.
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grid installations, such as solar or wind derived power sources. These power sources may produce
high peak voltages which will damage the alarm.
Do not install this alarm into an electrical circuit controlled by a dimmer or switch or ground
fault circuit interrupter.
•
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•
An alarm should be centrally located outside of each separate sleeping area in the immediate
vicinity of the bedrooms. Where bedrooms are separated and audibility of the alarm to occupants
within the bedroom area could be seriously impaired, more than one alarm could be needed.
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escape route as the bedrooms are usually farthest from an exit. If more than one sleeping area
exists, locate additional combination alarms in each sleeping area. If a hall is more than 40 feet
(12 meters) long, install a combination alarm at each end.
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In general, install combination CO and Gas Alarms:
•
WHERE YOU CAN HEAR THE ALARM FROM ALL SLEEPING AREAS.
•
In or near bedrooms and living areas or wherever you suspect a natural gas or CO exposure is
likely.
•
On each level of a multilevel home.
IMPORTANT!
Installation in an improper location can affect the sensitive electronic components in this alarm.
Please review WHERE THIS ALARM SHOULD NOT BE INSTALLED (see Page 4).
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alarm will detect natural gas primarily and carbon monoxide secondarily. Natural gas events will
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refer to natural gas.
When on AC power, this alarm is designed to act as a continuous monitor. It is not designed for use
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Page 3
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