PHOTOELECTRIC TYPE RESIDENTIAL
SMOKE ALARM FOR THE HEARING
IMPAIRED; AC POWERED WITH 9V
BATTERY BACKUP
Installation Instructions - Owner's/User's Information Manual
READ CAREFULLY AND SAVE
INTRODUCTION 380LS-C SERIES
The 380LS-C smoke alarm is a photoelectric type amoke alarm
for use as an evacuation device in residential applications. Each
smoke alarm has a solid state piezo signal to warn and alert the
household to the presence of threatening smoke.
Your photoelectric smoke alarm is designed to detect the smoke
that results from an actual fire. Consequently, it is uncommon for
household smoke such as cigarette smoke or normal cooking smoke
to cause an alarm.
MODEL
380LS-C
*
....................120 VAC, 60 Hz with 1 Form C Aux. Relay
Contact and Visual Signaling Strobe Light with
Tandem Wire Connection and Temporal Horn.
NOTE:
In the event AC Power fails, a 9v battery will provide proper
smoke alarm operation for a minimum of 24 hours.
* Per NFPA 72, the
American National Standard Audible Emergency
Evacuation Signal
as defined in ANSI S3.41, is required whenever
the intended response is to evacuate the building.
HOW YOUR SMOKE
ALARM WORKS
These smoke alarms operate on the photoelectric light scatter
principle. The unit's sensing chamber houses a light source and a
light sensor.
The darkened sensing chamber is exposed to the atmosphere
and designed to permit optimum smoke entry from any direction
while rejecting light from outside the alarm.
The light source is an infrared (invisible) LED which pulses every
4-8 seconds. The light sensor is a photodiode matched to the light
frequency of the LED light source.
Under normal conditions, the light generated by the pulsing
infrared LED is not seen by the light sensor, as it is positioned out of
the direct path of the light beam. When smoke enters the sensing
chamber, light from the pulsing LED light source is reflected by the
smoke particles onto the photodiode light sensor. At the first sighting
of smoke, the alarm is put into a pre-alarm mode.
This is indicated by a rapidly flashing LED on the face of the smoke
alarm. Once the light sensor confirms smoke for 2 consecutive
pulses inside the chamber, the light sensor produces the signal
necessary to trigger the smoke alarm.
This technique of verifying the smoke condition, combined with a
5-to-1 signal-to-noise ratio, substantially reduces the possibility of
nuisance alarms.
HOW TO TELL IF YOUR SMOKE
ALARM IS WORKING PROPERLY
Your smoke alarm is provided with an alarm horn and pulsating
Light Emitting (indicator) Diode, which pulses every 15-30
seconds, and a green AC power on LED.
When turning the test knob on the alarm to TEST 1, the red light
will flash rapidly, the horn will sound and the strobe will flash.
Strobe will not operate without AC power.
If the battery is low or missing, a chirp will be emitted when the
red LED flashes. If the smoke alarm is malfunctioning, the chirp
will sound between the red LED flashes. If AC power fails, the
green LED will turn off.
The test knob of your smoke alarm simulates actual smoke
conditions.
NOTE:
Tandem Interconnect Models.
When testing one smoke alarm, the smoke alarm that is activated
will flash the red indicator light and sound its alarm horn. All other
units will sound the alarm horn with their red indicator lights
remaining off.
FIRE PROTECTION PLAN: WHAT
YOU CAN DO TO MAKE YOUR
FAMILY SAFE FROM FIRES
This smoke alarm can quickly alert you to the presence of
smoke-it cannot prevent fire. The ultimate responsibility for fire
protection rests solely on you.
Installing smoke alarms is just the first step in protecting your
family from fires. You also must reduce the chances that fires will
start in your home and increase your chances of safely escaping if
one does start. To have an effective fire safety program:
a. Install smoke alarms properly following the instructions in
this manual. Keep your smoke alarms clean. Test your
devices weekly and repair or replace it when it no longer
functions.
As with any electronic product, smoke alarms have a
limited life, and devices that don't work cannot protect you.
b. Follow safety rules and prevent hazardous situations:
Use smoking materials properly; never smoke in bed.
Keep matches and cigarette lighters away from children.
Store flammable materials in proper containers and never use
them near open flames or sparks.
Keep electrical appliances and cords in good working order
and do not overload electrical circuits.
Keep stoves, fireplaces, chimneys, and barbecue grills grease-
free and make sure they are properly installed away from
combustible materials.
Keep portable heaters and open flames such as candles away
from combustible materials.
Do not allow rubbish to accumulate.
Do not leave small children home alone.
Pg. 3-1
FIRE PROTECTION AND SECURITY SYSTEMS
380LS-C SERIES
