Interlogix ESL Installation Instructions Manual

ESL Wireless Smoke Alarms
Caddx: NX491T
Wireless
ITI: 60-848-01-95

Installation Instructions

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
• Tamper
• Test
• Low battery
• Trouble
• Supervisory
ESL Wireless Smoke Alarms
C
LISTED
4300 Series
NX Series
Wireless Smoke Detector
Wireless Smoke Alarm/Detector
Sounder
LED
Figure 1. Alarm Features
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
(NFPA) 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 remain-
der 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.
U L
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Temperature sensor
Test/Silence button
1