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Tamper Resist Feature
To make the Smoke/CO alarm somewhat tamper
resistant, a tamper resist feature has been provided.
Activate the tamper resist feature by breaking off the
four posts in the square holes in the mounting plate
(see Figure 3A). Rotate the alarm onto the mounting
plate until you hear the tamper resist tab snap into
place, locking the alarm.
Using the tamper resist feature will deter children and
others from removing the alarm. To remove the alarm,
press on the tamper resist tab, and rotate the alarm off
of the mounting plate (see Figure 3B).
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 breifly flicker every 30 seconds when a CO
reading is taken.
For model KN-COSM-IBCA only, in Standby Condition
( p o w e r ed 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.
O p e r a t i o n
O p e r a t i o n
1918
FIGURE 3A FIGURE 3B
A
L o c a t i o n
of Posts
A
TAMPER RESIST FEATURE
810-1692_RevD_119-133_MAN_ENG 10/7/03 4:41 PM Page 18