System Sensor EBS User Manual

INSTALLATION AND MAINTENANCE INSTRUCTIONS

3

I56-3742-000R

EBS
Intelligent Sounder Base

3825 Ohio Avenue, St. Charles, Illinois 60174

1-800-SENSOR2, FAX: [phone]

www.systemsensor.com

Specifications

Base Diameter: 6.85 in (17.4 cm)
Base Height (less sensor): 1.61 in (4.1 cm)
Operating Temperature Range: Refer to applicable sensor Operating Temperature Range using the Base/Sensor Cross Reference Chart at systemsensor.com
Operating Humidity Range: 10% to 93% relative humidity (Non-condensing)

External Supply Electrical Ratings

External Supply Voltage: 16 to 33 VDC (VFWR)
Standby Current: 500 μA maximum
Alarm Current: 35 mA maximum

SLC Electrical Ratings

SLC Operating Voltage: 15 to 32 VDC
SLC Standby Current: 300 μA maximum
Sound Output Greater than 85 dBA minimum measured in a UL reverberant room at 10 feet, 24 Volts (in continuous tone)

BEFORE INSTALLING

Please read the Smoke Detector Application Guide, which provides detailed
information on detector spacing, placement, zoning, wiring, and special ap­plications. Copies of this application guide are available from System Sensor.
NFPA 72 guidelines should be observed.

NOTICE: This manual should be left with the owner/user of this equipment.
IMPORTANT: The detector used with this base must be tested and maintained

regularly following NFPA 72 requirements. The detector should be cleaned at
least once a year.

GENERAL DESCRIPTION

The sounder base was designed specifically to meet the needs of dwelling unit
applications. It offers maximum flexibility in configuration and operation to
meet or exceed the requirements of UL268 and UL464.

The sounder base is capable of producing either the distinctive three-pulse
temporal pattern (ANSI Temporal 3) fire alarm signal now required by NFPA
72 for commercial and residential applications or a continuous tone by simply
removing the included jumper from the device.

The sounder base is intended for use with intelligent systems. The sounder
base requires an external 24 VDC power supply. The connections for the
external power supply and the communication loop are isolated to prevent
electrical interaction between them. Refer to the panel manual for maximum
allowable number of units per loop.

NOTE: For NFPA72 Installations, the Temporal 3 tone should be used for public
mode evacuation.
NOTE: When not used as a supplementary evacuation system, the external 24
VDC supply shall be treated as a component of the main power supply system
and shall fall under the requirements of the main power supply system per
NFPA 72.

BASE TERMINALS

No. Function

1. Comm (–)

2. Positive (+) Comm. Line In and Out

3. Positive (+) Comm. Line Out and In

4. External Supply Positive (+)

5. External Supply Negative (–)

FIGURE 1: TERMINAL LAYOUT :

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1

MOUNTING

Mount the mounting plate directly to an electrical box. The plate will mount
directly to 4-inch square, 4-inch octagon, 3 1/2-inch octagon, single gang and
double gang junction boxes.

1. Connect field wiring to terminals, as shown in Figure 1 and 3.

2. Attach the mounting plate to the junction box as shown in Figure 2.

3. To mount the sounder base, hook the tab on the sounder base to the groove
on the mounting plate.

4. Then, swing the sounder base into position to engage the pins on the
product with the terminals on the mounting plate.

5. Secure the sounder base by tightening the mounting screws.

6. Install a compatible smoke detector as described in the installation manual
for the detector.

INSTALLATION AND WIRING GUIDELINES

All wiring must be installed in compliance with all applicable local codes
and any special requirements of the authority having jurisdiction. Proper wire
gauges should be used. The conductors used to connect smoke detectors to
control panels and accessory devices should be color-coded to reduce the like­lihood of wiring errors. Improper connections can prevent a system from re­sponding properly in the event of a fire.

For signal wiring (the wiring between interconnected sensors or modules),
it is recommended that the wire be no smaller than 18 AWG (0.823 square
mm). Wire sizes up to 12 AWG (3.31 square mm) may be used with the base.
The base will be shipped with the screw terminals set for 14 AWG wiring. If
12 AWG wire is used, back out the screws to allow the wire to fit beneath the
clamping plates.

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5

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SS-450-007 1 I56-3742-000R

Make electrical connections by stripping about 3/8 inch (10 mm) of insulation
from the end of the wire (use strip gauge molded in base). Then slide the wire
under the clamping plate and tighten the clamping plate screw. Do not loop
the wire under the clamping plate. (See Figure 4)

Check the zone wiring of all bases in the system before installing the detec­tors. This includes checking the wiring for continuity, correct polarity, ground
fault testing and performing a dielectric test.

The base includes an area for recording the zone, address, and type of detec­tor being installed. This information is useful for setting the detector head
address and for verification of the detector type required for that location.

Once all detector bases have been wired and mounted, and the loop wiring
has been checked, the detector heads may be installed in the bases.

TESTING AND MAINTENANCE

Detectors and bases must be tested after installation and as an integral part of
a periodic maintenance program. Test as follows:

NOTE: Before testing, notify the proper authorities that the smoke sensor
system is undergoing maintenance and, therefore, will be temporarily out of
service. Disable the system undergoing maintenance to prevent unwanted
alarms.

1. If configured as in Figure 3, reverse the polarity of the external 24VDC sup­ply. All EBS bases on the loop should sound.

2. Latch the detector LED on from the control panel. That individual detector’s
EBS should sound.

When performing maintenance on connected smoke detectors, carefully note
the location and address of each removed detector.

FIGURE 2: MOUNTING

Horn Grouping

No extra connections are required for grouping. However, the panel must be
configured to set up a group to sound their horns together. The panel can be
set up for a device to activate only the remote annunciator of the device that
sensed the alarm or to activate the remote annunciators of all the devices on
the loop. The latter will provide horn grouping for a loop.

Detectors and bases must be tested after installation and as an integral part of
periodic maintenance. Test the EBS as follows:

1. Single Horn Test: Configure the panel to only activate the remote annun­ciator of the alarm (test) detector. Activate the detector’s base will sound
in less than 1 second.

2. Multiple Horn Test: Configure the panel to activate all remote annuncia­tors on the loop when the panel detects an alarm or test. Initiate a test
and all horns on the loop will sound simultaneously.

NOTE: Grouping horns together can only be used as a supplementary evacu­ation system. It is not acceptable to group horns for primary alarm signaling.

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SS-450-007 2 I56-3742-000R