How Your Co Alarm Works - First Alert FCD4 User Manual

M06_1052_000.E Page 2 Thursday, July 13, 2000 7:46 AM

HOW YOUR CO ALARM WORKS

General Information
CAUTION!
Leave your CO Alarm plugged in year-round.
CO problems can occur any time during the
year, and this alarm can only alert you if it is
plugged in and receiving power.
This CO Alarm is intended for use in a standard,
unswitched 120V AC wall outlet. It is not intended
for use in extension cords, power strips, or
outlets controlled by a switch or dimmer. These
may not provide continuous power to the unit.
When fully powered, it samples the air
continuously. 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). When the unit is in alarm
mode, the Digital Display will show the levels of
CO, measured in parts per million, present. This
Carbon Monoxide Alarm features a permanently
installed sensor, a red POWER/ALARM light, and
an 85 dB alarm horn. It also has a silence feature
to temporarily quiet the alarm horn.
Malfunction Warning
This unit performs self-diagnostic tests
approximately every second. If the Alarm
malfunctions, it should be replaced
immediately.
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The Cover Of Your CO Alarm
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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 Digital Display
4 Air Vents
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Alarm Horn: 85db audible alarm for test,
alarm, and unit malfunction warning.
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Remote Control Target: Aim an IR remote
control at the front of the alarm to Test or
Silence. (Works with most IR remote
controls.)
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