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Understanding your co alarm – BRK electronic CO5120PDB User Manual

Page 4

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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...