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Installation Instructions - Owner's/User's Information Manual
READ CAREFULLY AND SAVE
INTRODUCTION
The 517TB Series Smoke Alarm is a Photoelectric Type Alarm for use as an
evacuation device. Each alarm has a solid state piezo that emits a temporal 3 signal
to warn and alert the household to the presence of threatening smoke.
The 517THB Series Smoke Alarm is a combination photoelectric alarm and heat
detector. The heat detector is an isolated 135ºF fixed temperature detector.
The 517TCB Series Smoke Alarm also has a form A / form C relay contact.
Your photoelectric 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.
HOW YOUR SMOKE ALARM WORKS
The 517TB Series Smoke Alarm operates on the photoelectric light scatter prin-
ciple. 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 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 alarm. Once the light sensor confirms smoke for 2 consecutive pulses
inside the chamber, the light sensor produces the signal necessary to trigger the
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 alarm is provided with an alarm horn and pulsating Light Emitting (indicator)
Diode, which pulses every 30 seconds, and a green AC power on LED.
· When turning the test knob on the alarm to TEST 1 the red light emitting diode
should flash rapidly and the horn should sound.
· If the battery is low, a chirp will be emitted when the red LED flashes. If the alarm
is malfunctioning, or if the battery is missing, the chirp is sounded without the red
LED flashing. If AC power fails, the green LED will turn off.
· The test knob of your alarm simulates actual smoke conditions.
517TB, 517THB & 517TCB Series Photoelectric Type
Single Station/Multi-Station Smoke Alarms
AC Powered with Battery Backup
NOTE: Tandem Interconnect Models.
· When testing one alarm, the 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. The relays will also activate on all units in tandem on
models equipped with the relay option.
FIRE PROTECTION PLAN
This Smoke Alarm can quickly alert you to the presence of smoke—it cannot
prevent fire. Please note that there are hazards against which smoke detection may
not be effective, such as smoking in bed, explosions, when a closed door separates
the alarm from the source of the smoke, etc. The ultimate responsibility for fire
protection rests solely on you.
1.
2.
3.
(a)
(b)
(c)
(d)
(e)
(f)
If the alarm should sound:
1.
2.
3.
4.
5.
WHAT ELSE YOU CAN DO TO MAKE YOUR FAMILY SAFE
FROM FIRES
Putting up 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.
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
· Keep electrical appliances and cords in good working order and do not overload
· Keep stoves, fireplaces, chimneys, and barbecue grills grease-free and make
· Keep portable heaters and open flames such as candles away from combustible
· Do not allow rubbish to accumulate.
firealarmresources.com
To minimize fire hazards—avoid improper storage of flammable liquids and don't
leave small children home alone.
Bedroom doors should be closed while sleeping if a smoke alarm is installed in
the bedroom. They act as a barrier against heat and smoke.
Establish an escape plan:
Post a detailed floor plan depicting the chosen escape routes.
Each bedroom should have at least two escape routes.
Make sure your children know what to do in case of fire and teach them to
follow the escape plan you have posted.
Agree on an outside meeting place.
Conduct fire drills at least twice a year.
Be sure each member of the family is familiar with the smoke alarm so they
can react properly.
Never waste time dressing or gathering valuables. Follow the escape route and
leave the house immediately.
Check bedroom doors before opening. If the door is hot or smoke is leaking in
around the edges—DO NOT OPEN—use the alternate escape route.
If there is smoke in the escape route—keep close to the floor and take short
breaths. If possible, cover your nose and mouth with a wet cloth.
Do not use your own telephone—call the Fire Department from your neighbor's
house.
Once out, do not re-enter your house, but proceed to your prearranged meeting
place.
Keep your smoke alarms clean. Test your alarm weekly and repair or
replace it when it no longer functions. As with any electronic product, alarms
have a limited life, and alarms that don't work cannot protect you.
flames or sparks.
electrical circuits.
sure they are properly installed away from combustible materials.
materials.
P/N 550-0172-004 © 1999
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