KN-COSM-BA Owners Manual

LED Indicator Operation

Red LED

The red LED will flash as described below under the following

conditions:

--During smoke or CO alarm, with every beep

--During testing (same as alarm)

--Low battery, single flash with chirp

--End of product life, double flash every 30 seconds with chirp

--Unit error mode, single flash with chirp

--Unit error mode, a Fault Code is flashed every 30 seconds (can

be observed and reported to customer service for

troubleshooting).

Green LED

The green LED will flash as described below under the following

conditions:

– Standby Condition :

The LED will flash every 60 seconds..

– Alarm Memory Condition: The LED will flash every

second during alarm. When the alarm condition goes

away, the originating alarm unit will flash the LED every

16 seconds until the test/reset button is pressed, thus

resetting the alarm.

– HUSH MODE Condition: The LED will flash every 2

seconds while the alarm is in HUSH mode.

Tamper Resist Feature

To make your smoke/CO alarm 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 trim ring

(see figure 5A). When the posts are broken off, the tamper resist

tab on the base is allowed to engage the mounting bracket.

Rotate the alarm onto the mounting bracket until you hear the

tamper resist tab snap into place, locking the alarm on the

mounting bracket. Using the tamper resist feature will help deter

children and others from removing the alarm from bracket.

NOTE: To remove the alarm when the tamper resist tab is

engaged, press down on the tamper resist tab, and rotate the

alarm off of the bracket (see figure 5B).

Operating Instructions

2553-7201-00(KN-COSM-BA)_V5.qxd:_ 2013.9.13 10:39 AM Pag