Edwards Signaling ESL 511 User Manual

ESL 511/518 Series
Smoke Detector

Installation Instructions

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LISTED

Description

The ESL 511/518 Series Smoke Detector is a two-wire
detector designed for use with a 24VDC fire system.

Refer to ESLs Compatibility Index for a complete listing
of compatible control panels. For a copy of the
Compatibility Index, call 1-800-648-7424.

WARNING

!

It is important that you read, understand, and follow
the instructions in this guide. If you have questions,
call Sentrol at 1-800-648-7424.

This document is intended for licensed electricians/
alarm installers. Sentrol cannot provide technical
support to unqualified persons.

Failure to properly install, test, and maintain a
smoke detector system may cause it to fail resulting
in loss of life and/or property.

Figure 1 - Detector/Base Lock Knockouts

 Locate wall-mounted smoke detectors so the top of the

detector is 4 to 12 inches below the ceiling.

 DO NOT locate detectors in or near bathrooms or

kitchens.

The detector provides the following features:
Detector/base lock discourages unauthorized removal of

the detector by requiring a screwdriver to remove the
detector from the base.

Mounting base mounts directly to standard single-gang, 3­inch round or 4-inch octagonal electrical boxes. Can also
be mounted directly to walls and ceilings if the local
authority having jurisdiction allows.

Selecting a Location

Selecting a suitable location is critical to the operation of
smoke detectors. This equipment should be installed in
accordance with the National Fire Protection Associations
(NFPA) Standard 72.

Important: Regulations pertaining to detector installation
vary from state to state. For more information, contact
your local fire department or local authority having juris­diction.

In addition to NFPA 72, use the following location guide­lines to optimize performance and reduce the chance of
false alarms from the detector:

 Locate ceiling-mounted smoke detectors in the center of

a room or hallway at least 4 inches from any walls or
partitions.

 Locate in a suitable environment as follows:

- Temperature between 32°F (0°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 detector.

 Mount smoke detectors on a firm permanent surface.

Installing the Detector

All wiring must conform to the National Electric Code
(NEC) and/or local codes having jurisdiction. Use 12 to
24 AWG wire to install the detector.

1. If you are using the detector/base lock, remove the
detector knockout and break off the tab on the mounting
base. See Figure 1.

2. Remove the red plastic dust cover from the detector.
The detector is shipped with a dust cover for protection
on construction sites with dusty environments.

3. Run system wiring to the detector location and mount
electrical boxes if necessary.

4. Line up and attach the gasket and mounting base to the
electrical box, wall, or ceiling using the screws pro­vided. Use the wall anchors if necessary. See Figure 2.

5. Strip the system wires and connect them to the appropri­ate terminals on the detector. See Figure 3.

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Detector

UL Listed control panel

Mounting base

Figure 2 - Mounting the Detector

Gasket

2-wire
initiating
circuit

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_

Figure 3 - Wiring Diagram

6. Attach the detector to the mounting base as follows:

- Line up the raised tab on the side of the detector with
the arrow on the mounting base. See Figure 4.

- Insert the smoke detector into the base and turn
clockwise approximately 15 degrees. It should snap
firmly into place.

7. Apply power.

8. Test the detector. See Smoke Testing the

Detector.

Important: The control panel alarm and all auxiliary
functions should be verified for a complete test of the
system.

EOL
device

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First
detector

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Last
detector

Smoke Testing the Detector

Smoke detectors should be tested in place annually using
smoke or canned aerosol simulated smoke. Follow the
instructions on the canned smoke or use the following
steps to test the detector with smoke:

1. Hold a smoldering punk or cotton wick close to the
smoke entry openings.

2. Gently direct the smoke into the detector for 20 seconds
or until an alarm is indicated.

BE SURE TO PROPERLY EXTINGUISH THE SMOKE
SOURCE AFTER TESTING! The detector LED should
stay on and an alarm should be indicated at the control
panel. Use the system reset switch to reset the detector.

Figure 4- Attaching Detector to Base

Understanding the LED

The LED on the detector indicates the status of the detector
as follows:

Flashing every 9 seconds = Normal operation.
On = Detects smoke, sending an alarm.
Off or flashing once every 1.5 seconds = Trouble or

maintenance is required. Test the detector. See Testing the
Detector Sensitivity.

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