Kidde KN-COSM-ICA User Manual page 20

Operation
LED Indicators
Red LED
The Red LED flashes in conjunction with the alarm.
The red LED will flash during a smoke alarm, a CO
alarm, a Low Battery Mode "chirp" and a Unit Error
Mode "chirp."
Green LED
The green LED will flash under the following
conditions:
In Standby Condition (powered by AC and battery
backup) the green LED will be constantly on indicating
that 120 V AC power is being delivered to the alarm. It
will briefly flicker every 30 seconds when a CO
reading is taken.
For model KN-COSM-IBCA only, in Standby Condition
(powered only by battery backup) the green LED will
flash every 5 seconds.
In Alarm Memory Condition the green LED will flash
every second signifying that the alarm has sensed a
smoke or CO hazard. It will continue to flash every
®
second until the Test/Reset/Hush button is pressed to
reset the alarm. When interconnected alarms cease to
sound, this flashing green LED indicates the originating
alarm that triggered all the others in the circuit, thus
reducing the time spent troubleshooting.
®
While in Hush Mode, the green LED will flash every 2
seconds.
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