Led Indicators - Kidde P12040CA User Manual

3. Operation

LED Indicators

This alarm is equipped with red and green LED indicators:
The green LED (when illuminated) indicates the presence of AC power.
The red LED located under the test / hush button) has four modes of
operation:
Standby Condition: The red LED will flash every 40 seconds to indicate
that the smoke alarm is operating properly.
Alarm Condition: When the alarm senses products of combustion and
goes into alarm, the red LED will flash one flash per second. The flashing
LED and pulsating alarm will continue until the air is cleared.
WHEN UNITS ARE INTERCONNECTED, only the red LED of the alarm
which senses the smoke or is being tested (the originating unit) will flash.
All other units in the interconnect system will sound an alarm but their
red LED's will NOT flash.
Alarm Memory (Models i12020ACA and i12040ACA only): This
smoke alarm is equipped with an alarm memory, which provides a
visual indication when an alarm has been activated. The red LED will
illuminate for about 1.5 seconds every 20 seconds to indicate the
memory condition. The memory will remain activated until pushing
the test button resets it or will time-out between 11 to 13 hours. In an
interconnected installation only the memory of the originating alarm will
be activated.
Hush mode: The red LED will flash every 10 seconds, indicating the
®
smoke alarm is in the Hush mode.
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