Use And Care Manual

Carbon
monoxide
alarm
Red LED flashes with
beeps.
4 quick beeps,
5 seconds silence,
repeating
Alarm condition.
Dangerous
concentrations of CO
detected
Refer to “What to do
When the Alarm Sounds”
(inside front cover)
Low
battery
Red LED flashes every
60 seconds
One quick beep
every 60 seconds
AC powered and low
or missing batteries
Install or replace two AA
batteries.
Operating and Alarm Characteristics
Function LED Display Alarm Sound Unit Status Recommendation
Normal
Operation
Green LED
constantly on
None Normal AC
operation (sensing no
CO) and with a good
battery
None
Normal
Operation
Green LED flashes
every 60 seconds
None Normal DC operation
on battery backup
Verify AC power is
restored as soon as
possible to conserve
battery. Replace batteries.
The following table describes the audible alarm patterns and the
recommended actions to take.
When the CO alarm loses AC power: If you have two good AA bat-
teries installed, the alarm will automatically switch to the battery back-
up mode and the green LED will flash approximately every 60 seconds.
The unit will continue to operate normally and detect CO .
When AC power is restored, the alarm will automatically switch back
to normal operating mode and the green LED will come on continu-
ously.
When the CO alarm is unplugged: If the tamper resist feature is
"ON" and the unit is unplugged it will produce a constant tone until a
battery is removed, tamper resist disabled or the unit is plugged back
into the wall. If tamper resist feature in "OFF" and unit is unplugged, it
will operate as if on battery backup only. Plug unit back into AC as
soon as possible.
Observe the CO alarm regularly to make sure the green Operate LED is
on, indicating normal operation.
If the green Operate LED is not on, unplug the CO alarm, then plug it
in again. This will clear the alarm for restart. If the green Operate LED
does not light, your CO alarm may be malfunctioning.
Event Memory: If the unit has detected a CO concentration of
100ppm or greater, the Green LED will flash every 10 seconds. Pushing
the test button will clear the Event Memory and initiate the test
sequence.
When the CO alarm detects an error condition: If the unit detects
an internal error or malfunction, it will produce one beep every 30
seconds with a red LED flash. If error condition continues, replace the
CO alarm immediately. Unit will not respond to CO in this condition.
6.Operating Characteristics
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