First Alert CO615 - Manual (Page 4)

UNDERSTANDING THE LIGHT, HORN, AND DISPLAY PATTERNS
Horn Display Condition LED
NORMAL AC POWER LED is Green.
BATTERY BACK-UP POWER Red LED is flashing once every 45
seconds.
DURING TESTING LED flashes Red in sync with the
horn, simulating an Alarm condition.
LOW OR MISSING BATTERY Green LED On if AC power is present
CARBON MONOXIDE ALARM LED flashes Red in sync with horn
MALFUNCTION SIGNAL LED flashing Red 3 times in sync
with 3 rapid chirps
LOW BATTERY SILENCE LED is Green.
PRE-ALARM CONDITION
CO IS PRESENT Green power LED On if AC power is
present
Silent Flashing battery icon.
The CO alarm horn pattern
(4 beeps, pause, 4 beeps) is issued. During the simulated
CO alarm, “CO” is
displayed along with
a full alarm level.
Several ppm CO
levels are also
displayed and
the alarm level is
shown increasing.
A chirp is issued about every
minute. Battery icon will show
an empty icon.
3 rapid chirps every minute “ERROR” is displayed.
Silent “SILENCE” is displayed.
Repeating 4 beeps, pause “CO” alternating
with the ppm
number, a full level,
and “EVACUATE”.
Silent “CO” alternating with the ppm number.
The level will indicate relative CO
exposure level.
Silent All segments
of display are
turned on for
a short time
upon initial
power. Then
the battery level icon is displayed.
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