Understanding your co alarm – BRK electronic CO5120PDB User 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
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