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UNDERSTANDING THE LIGHT, HORN, AND DISPLAY PATTERNS

Horn

Display

Condition

LED

NORMAL AC POWER

LED is Green.

BATTERY BACK-UP POWER

LED is Off, flashing Green once every
45 seconds

DURING TESTING

LED flashes Red in sync with the
horn, simulating an Alarm condition:
first gas then CO

LOW OR MISSING BATTERY

Normal

GAS ALARM CONDITION

LED flashes Red in sync with horn

CARBON MONOXIDE ALARM

LED flashes Red in sync with horn

MALFUNCTION

LED flashing Green 3 times in sync
with 3 rapid chirps

LOW BATTERY SILENCE

LED is Green.

PRE-ALARM CONDITION 
CO IS PRESENT

Normal

Silent

All segments of display are turned
On for a short time upon initial
power. Then the battery level icon is
displayed flashing.

First, the horn pattern for gas alarm
(1 beep every second) is issued, and
then the CO alarm horn pattern (4
beeps, pause, 4 beeps) is issued.

During the simulated
gas alarm, “GAS” is
displayed along with
a full alarm level.
During the simulated
CO alarm, “CO” is
displayed along with
a full alarm level.
Several ppm CO 
levels are also 
displayed and 
the alarm level is
shown increasing.

A chirp is issued about every
minute.

Battery icon will show
an empty icon.

3 rapid chirps every minute

“ERROR” is displayed.

Silent

“SILENCE” is displayed.

Repeating 1 beep every second

“GAS”, a full level, and “EVACUATE”.

Repeating 4 beeps, pause

“CO” alternating 
with the ppm 
number, a full level,
and “EVACUATE”.

Normal

“CO” alternating with the ppm number.
The level will indicate relative CO 
exposure level.

Silent

All segments 
of display are
turned on for 
a short time
upon initial
power. Then
the battery level icon is displayed.

4

SILENCING THE LOW BATTERY WARNING

This Silence Feature can temporarily quiet the low battery warning “chirp” for
up to 8 hours if AC power is present. You can silence the low battery warning
“chirp” two ways:

1.

Manually: Press the Test/Silence button on the Alarm cover until you see
the Green LED flicker, acknowledging the button-press.

2.

Using Your Remote Control: Standing no further than 12 feet (3.6 meters)
away from the Gas/CO Alarm, aim your IR remote at the Alarm and press
the CHANNEL or VOLUME button for at least 3-5 seconds.

The display will flash “SILENCE” for 8 hours while the low battery warning
“chirp” silence feature is activated. After 8 hours, the low battery “chirp” will
resume. The Alarm will continue to operate as long as AC power is supplied.
However, replace the battery as soon as possible, to maintain protection in
event of a power outage.

USING THE PEAK CO MEMORY

The CO Memory Feature lets you check the highest level of CO recorded.

To check CO Memory:
1.

Press the Display button until the peak CO level is displayed.

To clear CO Memory:
1.

While checking CO memory, press or hold the Display 
button until “CLEAR” is displayed.

2.

Press or hold the Display button until the CO Memory is
cleared.

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.

Summary of Contents for GCO1

Page 1: ... of either gas detected Therefore it is possible that you may smell gas before the Alarm is activated If you are not sure which gas your home uses contact your utility company For CO Alarms the National Fire Protection Association NFPA recommends that a CO Alarm should be centrally located outside of each separate sleeping area in the immediate vicinity of the bedrooms For added protection install...

Page 2: ...ng excessively noisy power Examples of noisy power could be major appliances on the same circuit power from a generator or solar power light dimmer on the same circuit or mounted near fluorescent lighting Excessively noisy power may cause damage to your Alarm Find the pair of self adhesive labels included with this Gas CO Alarm On each label write in the phone number of your emergency responder li...

Page 3: ...______________________________ 3 Immediately move to fresh air outdoors or by an open door or window Do a head count to check that all persons are accounted for Do not re enter the premises or move away from the open door or window until the emergency services responder has arrived the premises have been aired out and your CO Alarm remains in its normal condition 4 After following steps 1 3 if you...

Page 4: ...ndicate relative CO exposure level Silent All segments of display are turned on for a short time upon initial power Then the battery level icon is displayed 4 SILENCING THE LOW BATTERY WARNING This Silence Feature can temporarily quiet the low battery warning chirp for up to 8 hours if AC power is present You can silence the low battery warning chirp two ways 1 Manually Press the Test Silence butt...

Page 5: ...re often sources of CO If they are not properly main tained are improperly ventilated or malfunction CO levels can rise quickly CO is a real danger now that homes are more energy efficient Air tight homes with added insulation sealed windows and other weatherproofing can trap CO inside SYMPTOMS OF CO POISONING These symptoms are related to CO POISONING and should be discussed with ALL household me...

Page 6: ...ustion engines abnormal operation of fuel fired appliances and fireplaces CO Alarms are intended to alarm at carbon monoxide levels below those that could cause a loss of ability to react to the dangers of Carbon Monoxide exposure This CO Alarm monitors the air at the Alarm and is designed to alarm before CO levels become life threatening This allows you precious time to leave the house and correc...

Page 7: ...s is your exclusive warranty This warranty is valid for the original retail purchaser from the date of initial retail purchase and is not transferable Keep the original sales receipt Proof of purchase is required to obtain warranty performance BRK dealers service centers or retail stores selling BRK products do not have the right to alter modify or any way change the terms and conditions of this w...

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