BRK electronic CO2120PN - Manual (Page 5)

3
WHAT THE LIGHTS AND ALARM TONES MEAN
During Power Up (or After Power Outage)
Green light ON. Yellow & red lights OFF.
Horn “chirps” once.
During an Alarm
Green light ON. Yellow light OFF. Red light
FLASHES. Repeating horn pattern: 4 beeps,
then a pause, 4 beeps, then a pause.
During Normal Operation
Green light ON. Yellow & red lights OFF.
Horn silent.
During Alarm Malfunction
Green light ON. Yellow light ON. Red light
FLASHES. Horn “chirps” about twice a minute.
During Normal Test
All three lights flash briefly. Horn pattern
repeats twice: 4 beeps, then a pause, 4 beeps,
then a pause.
Using the Silence Feature in Alarm
Green light ON. Yellow light OFF. Red light
FLASHES. Horn silent for 4 minutes. Refer to
Chapter 3 for details on the Silence feature.