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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 (12 meters), 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) 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) away from the furnace or fuel burning heat source.
This unit should receive continuous electrical power. Choose an outlet
where it can’t be accidentally unplugged or switched off by children.
Keep small children away from the unit. Teach them not to play with it or
unplug it. Explain what the alarms mean.
2
GARAGE
SUGGESTED AREAS FOR INSTALLING ADDITIONAL CO ALARMS
BEDROOM
BEDROOM
HALL
LIVING ROOM
KITCHEN
BASEMENT
BEDROOM
REQUIRED TO MEET NFPA RECOMMENDATIONS
UNDERSTANDING YOUR CO ALARM
BASIC POWER CONDITIONS
What you see and hear during installation
WHEN YOU FIRST PLUG-IN
THE CO ALARM:
HORN:
May chirp briefly
DISPLAY: Dash appears by
“READY”
POWER/ALARM LIGHT:
Shines continuously
UNDER NORMAL CONDITIONS
(AC POWER):
HORN:
Silent
DISPLAY: Dash remains lit at
“READY”
POWER/ALARM LIGHT: Shines
continuously
WHEN YOU TEST THE CO ALARM:
HORN:
Sounds loudly - 4 beeps,
pause, 4 beeps, pause
DISPLAY: Flashes “888” briefly
POWER/ALARM LIGHT:
Flashes rapidly
What you see and hear under different conditions:
WHEN THE ELECTRICITY COMES
BACK ON:
HORN:
May chirp briefly
DISPLAY: Dash appears by
“READY”
POWER/ALARM LIGHT: Shines
continuously.
IF THE CO ALARM IS NOT
OPERATING PROPERLY:
HORN:
Three rapid chirps
every minute
DISPLAY: Displays “Err”
POWER/ALARM LIGHT: Flashes
three times in sync with the horn.
What you see and hear if CO is detected:
PRE-ALARM LEVELS:
HORN:
Silent
DISPLAY: Shows CO levels
detected in ppm
POWER/ALARM LIGHT:
On continuously
ALARM LEVELS OF CO ARE
DETECTED:
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/ALARM LIGHT:
Flashes rapidly
IF YOU SILENCE THE ALARM:
HORN:
Silent for about
4 minutes*
DISPLAY: Shows CO levels
detected in ppm
POWER/ALARM LIGHT:
Flashes rapidly
*Note: After 4 minutes, if CO lev-
els drop below alarm levels, the
unit will remain silent and return
to normal operation. If CO pres-
ence still indicates a potentially
dangerous situation, the horn will
sound again.
IF THE CO LEVELS RETURN
TO NORMAL:
HORN:
Silent
DISPLAY: Dash lit by “READY”
POWER/ALARM LIGHT:
Shines continuously
USING THE PEAK CO MEMORY
The CO Memory Feature lets you check the highest level of CO recorded
during an alarm.
To check CO Memory:
1. Press and release the Test/Silence/Scroll button until the 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.
Alarm operating
on AC power
“Err” Alarm is
not operating
properly
WHERE CO ALARMS SHOULD NOT BE INSTALLED
DO NOT locate this CO Alarm:
• In garages, kitchens, furnace rooms, or in any extremely dusty, dirty
or greasy areas.
• Closer than 15 feet (4.6 meters) from a furnace or other fuel burning heat
source, or fuel burning appliances like a water heater.
• Within 5 feet (1.5 meters) of any cooking appliance.
• In extremely humid areas. This Alarm should be at least 10 feet (3 meters)
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.
• In turbulent air, like near ceiling fans, heat vents, air conditioners,
fresh air returns, or open windows. Blowing air may prevent CO from
reaching the sensors.
• In direct sunlight.
• In outlets covered by curtains or other obstruction.
• 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 airplanes. This CO Alarm is specifically designed for residential
use, and may not provide adequate protection in non-residential
applications.