BRK electronic CO5120PDB - Manual (Page 4)

2
BASIC POWER CONDITIONS
Alarm
operating on
AC power Alarm
operating on
emergency
battery back-up Low / missing
battery warn-
ing
WHAT YOU SEE AND HEAR DURING INSTALLATION
Under normal conditions (AC power)
When you test the CO Alarm
Horn Silent
Display Dash remains lit
at “READY”
POWER/ Shines
ALARM Light continuously
Horn Sounds loudly -
4 beeps, pause,
4 beeps, pause
Display Flashes “888”
briefly
POWER/ Flashes once
ALARM Light per second
WHAT YOU SEE AND HEAR UNDER
DIFFERENT CONDITIONS
During a power failure (in battery back-up)
Horn Chirps briefly
Display The word “bat”
is displayed
POWER/ Flashes once a
ALARM Light minute
When the electricity comes back on
Horn Chirps briefly
Display Dash appears by
“READY” within
a minute
POWER/ Shines
ALARM Light Continuously
UNDERSTANDING YOUR CO ALARM
Continued...