First Alert SC9120B How Your Smoke/Co Alarm Works, Understanding The Light And Horn Patterns

HOW YOUR SMOKE/CO ALARM WORKS

THE COVER OF YOUR SMOKE/CO ALARM

1. Test/Silence Button: Press and hold to activate test, or to silence the alarm.

2. POWER Light (GREEN)/

SMOKE ALARM Light (RED)

3. CO ALARM Light (RED)

4. Battery Drawer

5. (Behind the Cover) Alarm Horn: 85dB audible alarm for test, alarm, and unit malfunction warning.

UNDERSTANDING THE LIGHT

AND HORN PATTERNS

Condition	LED (Red or Green	Horn
	Lights)
POWER UP	Green LED	Horn remains silent
	flashes ON
	once, then
	shines continuously
DURING TESTING	Smoke & CO	Horn pattern:
	Red LEDs flash	(Smoke) 3 beeps,
	once every	pause, 3 beeps,
	second during	pause;
	their respective	(CO) 4 beeps, pause,
	repetitive horn	4 beeps, pause
	patterns
LOW OR MISSING	Green LED	Horn “chirps”
BATTERY	flashes	about once a
	(with horn)	minute
ALARM CONDITION	Smoke or CO	Horn pattern:
Interconnected Series	Red LED	(CO) 4 beeps,
of Smoke/CO Alarms	flashes rapidly	pause, 4 beeps,
	on the unit that	pause repeating
	triggered the alarm.	on all CO Alarms and
	LEDs on the	“Smart Interconnect”
		Alarms;
	other alarms in	(Smoke) 3 beeps,
	an interconnected	pause, 3 beeps,
	series will not flash.	pause repeating on all
		Smoke, Heat, and
		“Smart Interconnect”
		Alarms
IN ALARM SILENCE	Red Smoke or CO	Horn remains silent:
MODE	LED flashes	CO for 4 minutes;
	once every	Smoke for up
	second on	to 15 minutes.
	initiating unit	Horn will sound
		if Smoke or CO
		levels increase.
“LATCHING” ALARM	Red Smoke	Horn remains silent
INDICATOR	and/or CO
	LED flashes
	once every 5 seconds
MALFUNCTION	Green LED flashes 3	Horn sounds 3
	times synchro-	consecutive
	nized with 3	rapid chirps
	rapid chirps	every minute

IF YOUR SMOKE/CO ALARM SOUNDS

WHAT TO DO FIRST–IDENTIFY THE TYPE OF ALARM

Type of Alarm	What You See and Hear
Carbon Monoxide	CO Light:
(CO)	Flashing RED
	Horn: 4 beeps,
	pause, 4 beeps,
	pause
Smoke	Smoke Light:
	Flashing RED
	Horn: 3 beeps,
	pause, 3 beeps,
	pause

WHAT TO DO IF CARBON MONOXIDE IS DETECTED

“ALARM-MOVE TO FRESH AIR”

If you hear the alarm horn sound 4 beeps, pause, 4 beeps, pause, and the RED CO light is flashing, move everyone to a source of fresh air.

Actuation of your CO Alarm indicates the presence of carbon monoxide (CO) which can kill you. In other words, when your CO Alarm sounds, you must not ignore it!

IF THE CO ALARM SOUNDS:

1.Operate the Test/Silence button.

2.Call your emergency services, fire department or 911. Write down the number of your local emergency service here:

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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 Smoke/CO Alarm remains in its normal condition.

4.After following steps 1-3, if your Smoke/CO Alarm reactivates within a 24-hour period, repeat steps 1-3 and call a qualified appliance technician to investigate for sources of CO from fuel-burning equipment and appliances, and inspect for proper operation of this equipment. If problems are identified during this inspection have the equipment serviced immediately. Note any combustion equipment not inspected by the technician, and consult the manufacturers’ instructions, or contact the manufacturers directly, for more information about CO safety and this equipment. Make sure that motor vehicles are not, and have not, been operating in an attached garage or adjacent to the residence. Write down the number of a qualified appliance technician here:

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WHAT TO DO IF SMOKE IS DETECTED

If you hear the alarm horn sound 3 beeps, pause, 3 beeps, pause and the RED SMOKE light is flashing, smoke has been detected. Evacuate everyone from the building.

•If the unit alarms and you are not testing the unit, it is warning you of a potentially dangerous situation that requires your immediate attention. NEVER ignore any alarm. Ignoring the alarm may result in injury or death.

•Never disconnect the AC power to quiet an unwanted alarm. Disconnecting the power disables the Alarm so it cannot sense smoke. This will remove your protection. Instead, open a window or fan the smoke away from the unit. The Alarm will reset automatically.

•If the unit alarms get everyone out of the house immediately.

•ELECTRICAL SHOCK HAZARD: Attempting to disconnect the power connector from the unit when the power is on may result in electrical shock, serious injury or death.

When an interconnected system of AC powered units is in alarm,

the alarm indicator light on the unit(s) that initiated the alarm will blink rapidly. It will remain OFF on any remaining units.

If the unit alarms, get everyone out of the dwelling immediately.

If the unit alarms and you are certain that the source of smoke is not a fire—cooking smoke or an extremely dusty furnace, for example—open a nearby window or door and fan the smoke away from the unit. Use the Silence Feature to silence the Alarm. This will silence the alarm, and once the smoke clears the unit will reset itself automatically.

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