Installation Instructions

18.
Silencing (Hush)
When the Alarm sounds, after sensing CO, pressing the test/hush button will immediately
silence the Alarm (the red light will continue to flash). If CO is still present the red LED
and sounder will activate again after about 4 minutes. The Alarm can only be silenced
once during a CO incident. At levels > 250ppm CO the Alarm cannot be silenced.
Monitoring
The CO Alarm will self-check (monitor) itself and give a status update every 50
seconds if there are any problems.
The status of the Alarm can also be checked on demand by using the test button.
The table below shows the status response to both the self-check and on demand
testing.
If the Alarms are indicating a fault, pressing the test button will silence the beeps for
a 24 hour period. This is for your convenience and can only be done once.
Monitoring Summary
Status Result
Red LED
(Alarm)
Amber LED
(Fault)
Green LED
(Power)
Sounder LCD Display Action
Standby
No visual or audible indication if unit is OK
Unit OK ( Button Test)
Off Off
On Ramps up to full sound
Low Battery
Off 1 Flash
Off 1 Beep
Replace batteries
Sensor Fault
Off 2 Flashes
Off 2 Beeps
Replace Unit
End of Life (EOL)
Off 3 Flashes
Off 3 Beeps
Replace Unit