Interlogix ESL, 60-848-01-95, Caddx NX-491T Installation Instructions Manual
ESL Wireless Smoke Alarms
Caddx: NX491T
Wireless
Installation Instructions
ITI: 60-848-01-95
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4300 Series
NX Series
Wireless Smoke Detector
Wireless Smoke Alarm/Detector
US
LISTED
Description
The ESL smoke alarms are Learn Mode wireless sensors
with 319.5 MHz transmitters that use photoelectric
technology with a self contained sounder, a low battery
annunciator, and a status LED. The smoke alarms are part
of a security/fire alarm system and communicate with the
system control panel.
The smoke alarms provide the following features:
Self-diagnostics. The smoke alarms monitor their own
sensitivity and operational status.
Base tamper switch sends a tamper signal transmission to
the control panel when the smoke alarms are removed from
their mounting bases.
Integrated fixed 135°F temperature and rate of rise heat
detector trips an alarm based on high temperature detected
or rapidly rising temperature rate (15°F/minute minimum).
Transmitted Signal Outputs
The smoke alarms transmit the following signals to the
control panel:
• Alarm
• T amper
• Test
• Low battery
• Trouble
• Supervisory
Sounder
LED
Figure 1. Alarm Features
T emperature sensor
T est/Silence button
Selecting a Location
Selecting a suitable location is critical to the operation of
smoke alarms. This equipment should be installed in
accordance with the National Fire Protection Association’s
(NFP A) Standard 72. See Figure 2.
A-8-1.2.1.a Where to Locate the Required Smoke Alarms
in Existing Construction.
The major threat from fire in a family living unit occurs at
night when everyone is asleep. The principal threat to
persons in sleeping areas comes from fires in the remainder of the unit. Therefore, a smoke alarm(s) is best located
between the bedroom areas and the rest of the unit. In
units with only one bedroom area on one floor, the smoke
alarm(s) should be located as shown in Figure 2 A.
In family living units with more than one bedroom area or
with more than one floor, more than one smoke alarm is
required, as shown in Figure 2 B.
In addition to smoke alarms outside of the sleeping areas,
the installation of a smoke alarm on each additional story
of the family living unit, including the basement, is
required. These installations are shown in Figure 2 C. The
living area smoke alarm should be installed in the living
room or near the stairway to the upper level, or in both
locations. The basement smoke alarm should be installed
in close proximity to the stairway leading to the floor
above. Where installed on an open-joisted ceiling, the
alarm should be placed on the bottom of the joists. The
alarm should be positioned relative to the stairway to
intercept smoke coming from a fire in the basement before
the smoke enters the stairway .
ESL Wireless Smoke Alarms
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Kitchen
Dining
Room
Figure 2 A. Alarm Placement
TV Room
Bedroom
Bedroom
Living Room
Dining
Kitchen Bedroom
Room
Living Room
Bedroom
Bedroom
Bedroom
A-8-1.2.1.c Are More Smoke Alarms Desirable?
The required number of smoke alarms might not provide
reliable early warning protection for those areas separated
by a door from the areas protected by the required smoke
alarms. For this reason, it is recommended that the
householder consider the use of additional smoke alarms
for those areas for increased protection. The additional
areas include the basement, bedrooms, dining room,
furnace room, utility room, and hallways not protected by
the required smoke alarms. The installation of smoke
alarms in kitchens, attics (finished or unfinished), or
garages is not normally recommended, as these locations
occasionally experience conditions that can result in
improper operation.
Important !
Regulations pertaining to smoke alarm installations vary from state to state. For more information, contact your local fire department or local
authority having jurisdiction.
Figure 2 B. Alarm Placement
Bedroom
Living
Room
Basement
Figure 2 C. Alarm Placement
= Required smoke alarms
= Additional smoke alarms required for new construction
Bedroom
Dining
Room
In addition to NFP A 72, use the following location
guidelines to optimize performance and reduce the chance
of false alarms:
• Locate ceiling-mounted smoke alarms in the center of a
room or hallway at least 4 inches (10.2cm) from any
walls or partitions.
• Locate wall-mounted smoke alarms so the top of the
alarm is 4 to 12 inches (10.2 to 30.5cm) below the
ceiling.
• Locate in a suitable environment as follows:
- T emperature between 40°F (4.4°C) and 100°F (37.8°C)
- Humidity between 0 and 95% non-condensing
• Locate away from air conditioners, heating registers
and any other ventilation source that may interfere
with smoke entering the alarm.
• Mount smoke alarms on a firm permanent surface,
typically a stud or metal runner.
• Locate away from large metallic objects.
A-8-1.2.1.b Where to Locate the Required Smoke Alarms
in New Construction.
All of the smoke alarms specified in A-8-1.2.1.a for existing
construction are required and, in addition, a smoke alarm is
required in each bedroom.
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ESL Wireless Smoke Alarms
Installing the Alarms
1 . Slide the battery compartment cover away from the
alarm to unsnap it and lift it off. See Figure 3.
2 . Observing proper polarity, insert the two lithium
batteries provided into the alarm battery compartment
and replace the battery compartment cover.
3. Making sure that the unit is removed from its base, put
the panel in program mode/Learn Mode.
4 . Remove the red plastic dust cover from the alarm. The
alarms are shipped with a dust cover for protection on
construction sites with dusty environments.
5. With the base still removed, press the test/silence
button until the panel indicates that the sensor has
been enrolled.
6 . Before permanently mounting the alarm, disconnect the
alarm notification appliances and test the communication between the control panel and each smoke alarm as
follows:
- Press the test/silence button on the alarm for 2
seconds. The alarm sends a test signal to the control
panel.
- At the control panel, verify the test signal was
received and the RF signal strength is adequate. If no
signal is received or the RF signal is weak, relocate the
alarm and retest.
7. Using the two screws and anchors provided, mount
the base.
8 . Attach the alarm to the mounting base as follows:
- Line up the raised tab on the lip of the alarm with the
slot on the lip of the mounting base. See Figure 3.
- Insert the alarm into the base and turn clockwise
approximately 15 degrees. It should snap firmly into
place.
9. Test the communication between the control panel
and each smoke alarm as follows:
- One at a time, press the test/silence button on the
alarm for 2 seconds. The alarm sends a test signal to
the control panel.
Note
Continuing to press and hold the test button for
more than 20 seconds will send an alarm signal
to a control station.
- At the control panel, verify the test signal was
received.
10. Test each alarm (see Smoke Testing the Alarm) and
reconnect all alarm notification appliances.
Tab
Slot
Battery
compartment
Figure 3 - Alarm-to-Base Alignment
Smoke Testing the Alarms
Smoke alarms should be tested in place annually using
smoke or Smoke! in a can®. Follow the instructions on the
canned smoke or use the following steps to test the
alarms with smoke:
1 . Hold a smoldering punk or cotton wick close to the
smoke entry openings.
2 . Gently direct the smoke into the unit for 20 seconds or
until an alarm is indicated.
Be sure to properly extinguish the smoke source after
testing! The alarm LED should remain on while the built-in
transmitter sends an alarm signal to the control panel. The
alarms will sound a temporal rhythm until the test/silence
button is pressed. The alarms automatically reset when
smoke is no longer present.
Important !
The control panel alarm and all auxiliary functions should be verified for a complete test of the
system.
ESL Wireless Smoke Alarms
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