Event electronic CO5120PDBN Manuel D’Utilisation

2

ALARM CONDITION

LED flashes once every second

Horn pattern: 

Single CO Alarm 

4 beeps, pause,

(not interconnected)

4 beeps, pause,
repeating

ALARM CONDITION

LED flashes rapidly on the units

Horn pattern: 

Interconnected

that triggered the alarm. LEDs

4 beeps, pause, 

Series of CO Alarms

on the other Alarms in the series

repeating on all 

will not flash

CO Alarms

IN SILENCE MODE

LED flashes once every second

Horn stays quiet 

on initiating Alarm

for 4 minutes

“LATCHING” ALARM

LED Flashes once every

Horn stays quiet

INDICATOR

5 seconds

MALFUNCTION

LED flashes 3 times

Horn sounds 

synchronized with 3 rapid chirps

3 rapid chirps 
(chirp-chirp-chirp)
every minute

Alarm operating on AC
power

Alarm operating on
emergency battery
back-up

Low / missing battery
warning

“Err” Alarm is not
operating properly

HORN: Silent
DISPLAY: Shows CO levels detected in ppm
(CO5120PDBN)
POWER/ALARM LIGHT: On continuously

HORN: Sounds loudly - 4 beeps, pause, 4 beeps,
pause. This sequence repeats for as long as the
unit is in alarm*
DISPLAY: Shows CO levels detected in ppm
(CO5120PDBN)
POWER/ALARM LIGHT: Flashes rapidly
*Note: If unit goes into alarm under battery back-
up power, the regular 4 beeps-brief pause cycle
will repeat for four minutes. After four minutes, the
pause will increase to 1 minute.

HORN: Silent for about 4 minutes*
DISPLAY: Shows CO levels detected in ppm
(CO5120PDBN)
POWER/ALARM LIGHT: Flashes rapidly
*Note: After 4 minutes, if CO levels drop below
alarm levels, the unit will remain silent and return
to normal operation. If CO present still indicates a
potentially dangerous situation, the horn will
sound again.

HORN: Silent
DISPLAY: Dash lit by “READY” (CO5120PDBN)
POWER/ALARM LIGHT: Shines continuously

This CO Alarm includes “Smart Interconnect” which enables the Alarm to be interconnected with other BRK
Smoke and CO Alarms. When interconnected to Smoke Alarms that go into alarm, this CO Alarm will sound the
smoke horn pattern.

The CO Memory Feature lets you check the highest level of CO recorded during an alarm.
To check CO Memory:
1. Press and release the Test/Silence/Scroll button until the dash scrolls to “MEMORY”.
2. Press and hold Test/Silence/Scroll button to display Memory CO level.
To clear CO Memory:
1. Press and release the Test/Silence/Scroll button until the dash scrolls to “CLEAR MEMORY.”
2. Press and hold the Test/Silence/Scroll button until the display shows “CLr.”
NOTE: The highest CO level will be saved, even after a power interruption, until you clear it. DO NOT clear the
CO Memory reading if you plan to call someone to investigate a CO problem! Clear the CO Memory reading
only after the investigator has checked your home.

The National Fire Protection Association (NFPA) recommends that a CO Alarm should be centrally located out-
side of each separate sleeping area in the immediate vicinity of the bedrooms. For added protection, install
additional CO Alarms in each separate bedroom, and on every level of your home. 

If your bedroom hallway is longer than 40 feet (12 meters), install a CO Alarm at BOTH ends of the hallway.

• Install at least one CO Alarm near or within each separate sleeping area.
• For added protection, install an additional CO Alarm at least 20 feet (6 meters), away from the furnace or

fuel burning heat source.

• Install at least one CO Alarm near or within each separate sleeping area.
• For added protection, install at least one CO Alarm on each level of the home. If you have a basement,

install that CO Alarm at the top of the basement stairs.

• For added protection, install an additional CO Alarm at least 20 feet (6 meters) away from the furnace or

fuel burning heat source.

DO NOT locate this CO Alarm:
•

In garages, kitchens, furnace rooms, or in any extremely dusty, dirty or greasy areas.

•

Where combustion particles are produced. Combustion particles form when something burns. Areas to
avoid include poorly ventilated kitchens, garages, and furnace rooms. Keep units at least 20 feet (6 meters)
from the sources of combustion particles (stove, furnace, water heater, space heater) if possible. In areas
where a 20-foot distance is not possible – in modular, mobile, or smaller homes, for example – it is recom-
mended the CO Alarm be placed as far from these fuel-burning sources as possible. The placement recom-
mendations are intended to keep these Alarms at a reasonable distance from a fuel-burning source, and
thus reduce “unwanted” or “nuisance” alarms. Unwanted alarms can occur if a CO Alarm is placed directly
next to a fuel-burning source. Ventilate these areas as much as possible.

•

Within 5 feet (1.5 meter) of any cooking appliance.

•

In extremely humid areas. This Alarm should be at least 10 feet (3 meter) from a bath or shower, sauna,
humidifier, vaporizer, dishwasher, laundry room, utility room or other source of high humidity.

•

In areas where temperature is colder than 40˚F (4˚C) or hotter than 100˚F (38˚C). These areas include non-
airconditioned crawl spaces, unfinished attics, uninsulated or poorly insulated ceilings, porches, and
garages.

•

In turbulent air, like near ceiling fans, heat vents, air conditioners, fresh air returns, or open windows.
Blowing air may prevent CO from reaching the sensors.

•

In direct sunlight.